CN2194055Y - Remote control opening and closing device for lens cap of ceiling projector - Google Patents
Remote control opening and closing device for lens cap of ceiling projector Download PDFInfo
- Publication number
- CN2194055Y CN2194055Y CN 94207480 CN94207480U CN2194055Y CN 2194055 Y CN2194055 Y CN 2194055Y CN 94207480 CN94207480 CN 94207480 CN 94207480 U CN94207480 U CN 94207480U CN 2194055 Y CN2194055 Y CN 2194055Y
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- CN
- China
- Prior art keywords
- lens cap
- remote control
- control
- lens
- projecting apparatus
- 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.)
- Expired - Fee Related
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- 229920001821 foam rubber Polymers 0.000 claims description 3
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model belongs to a remote control headstock gear of furred ceiling projecting apparatus lens cap. The remote control device comprises a handheld remote control transmitter, a receiving control box, a stepping motor, a connecting rod, a lens cover, a reed pipe, a limiting magnet, a bottom plate, a damping sheet, a balance block, a sponge mat and the like. The hand-held remote control transmitter remotely controls the receiving control box to control the stepping motor and directly drives the lens cover to open and close through the connecting rod. The whole opening and closing process takes about 3 seconds. The utility model discloses simple structure, device are convenient, open and close the flexibility, are applicable to various devices that need the remote control to open and close.
Description
The utility model belongs to the remote-control open-and-shut device of ceiling projecting apparatus's lens cap.
Projecting apparatus is at present more is used for the computer display terminal, and great majority adopt the furred ceiling mounting meanss, save space, and exempts because of projector distance and changes the optics that needs frequent employing and the correction work of electron focusing a little.Projecting apparatus adopts Electronic Control and three lightpipe optics complex focusing modes, the clean degree of optical lens is required high, thereby, very important to the projector lens protection that furred ceiling is installed.General adopt manual protected mode, when promptly enabling, the people stands in eminence three lens caps is taken off one by one, to be used use up the back by manually with on the lens cap, use extremely inconvenient.Also do not open and close the report of the device of lens cap at present for this class ceiling projecting apparatus remote control.
The objective of the invention is to design the device that a kind of remote control opens and closes lens cover of projector, hand-held remote controller opens and closes lens cap arbitrarily as required.
The utility model is made up of hand-held remote control reflector, control box, stepping motor, connecting rod, lens cap, tongue tube, spacing magnet, mount holder, damping fin, balance weight, foam-rubber cushion.With the remote control of hand-held remote control reflector, directly drive the revolving mirror skull to opening and closing the position by connecting rod by control box control step motor.Spacing magnet is housed on the connecting rod, tongue tube is housed on base plate determines that lens cap opens and closes the position, be provided with damping fin on the position in order to stablize lens cap opening, this control device has one and receives the control box circuit, partly is made up of reception, amplification, paraphase, startup, vibration, decoding, demonstration, setting, driving, spacing etc.
The utility model control system is formed by transmitting and receiving control two partial devices.After the hand-held remote control reflector sends signal, receive control box and receive and processing signals, drive stepping motor rotation one is located-is stopped then, finishing commutation simultaneously and preparing.This installs Electronic Control, and Mechanical Driven adopts isolating construction, and the drive division volume is little, can be loaded on the confined space of different projecting apparatus outside.The phase place umber of beats of stepping motor can be set as required, and be equipped with the drive circuit of different capacity, to be applicable to different purposes.
Fig. 1 is ceiling projecting apparatus's remote control lens cap headstock gear front schematic view;
Fig. 2 is ceiling projecting apparatus's remote control lens cap headstock gear side schematic view;
Fig. 3 is hand-held remote-controlled launcher schematic diagram;
Fig. 4 is for receiving the control box circuit block diagram;
Fig. 5 is a hand-held remote control radiating circuit schematic diagram;
Fig. 6 is for receiving the control box circuit theory diagrams;
Receive, amplification and rectification circuit is by HP302, IC1 forms, and send a low level to give the paraphase drive circuit when receiving remote signal, makes the relay J conducting, produces a high level through R11 and J-1 start-up circuit is triggered; Start-up circuit is connected to the monostable trigger-action circuit that can heavily touch by IC4, R12 and monostable the fixing time of C11 decision, and when 4 pin got the high level triggering, 6 pin output high level was to the IC6 power supply of decoding circuit; The pulse enable signal IC6 output Q1-Q8 that oscillating circuit IC5 during this period produces obtains high level successively, produce phase impulse through IC7, the IC8 of decoding circuit coding and send drive circuit, phase impulse can be provided with by wire jumper DIP1, and drive circuit is four groups of power amplifiers; Stepping motor position of rotation and direction are controlled by limit circuit, and limit circuit is by spacing magnet T1, T2, and sensitive switch K1, K2 and IC2 and IC3 form, and IC2 is connected to flip-flop circuit, and its input is sent into by sensitive switch K1, K2 and hanged down into the low level triggering signal; IC2 output signal one tunnel goes decoding circuit IC9, IC10 control end to change direction, IC3 control end 5 and 12 pin are removed in another road, its control end obtains one group of analog switch conducting of high level, send a low level to reset to start-up circuit IC4-3, make IC6 dead electricity no-output, step motor stop; Receiving circuit is waited for the arrival of next remote signal, the every work of stepping motor once change first power to.
After pressing the hand-held remote control transmitter button facing to the receiver window that receives control box, the hand-held remote control reflector sends infrared light pulse, photoelectric receiving diode PH302 receives in the control box by receiving, the brief burst signal of conversion is given IC1, output low level after IC1 amplification, shaping; Make midget relay J conducting once through IC2:D paraphase, BG1 after driving, give IC4:A as triggering signal through R11 and J-1 generation high level.But IC4:A is for can heavily triggering two monostable multivibrators of individual reset, and when its 5 pin connected high level, 4 pin were the high level trigger end, and 3 pin are the low level reset terminal; R12 and C11 that 2 pin connect determine its monostable time.When high level triggered 4 pin, output 6 pin were uprised by low, and IC6 is powered.The pulse signal that IC5 produces is delivered to IC6.IC5 is a time-base circuit, is connected into square-wave generator and produces the benchmark beat, and its frequency is determined by R16, C12.IC6 is a timing sequencer, whenever negative pulse of input 14 pin input, output is just sent a positive pulse by the Q1-Q8 loop direction, the positive pulse of sending successively is by IC7:A, IC7:B, IC8:A, IC8:B decoding, decoding output can be set wire jumper KIP1 according to the winding number of phases of stepping motor, the 2-7 pin is connected to the four phase eight beat energisation mode, if 4-5,3-6, the 1-8 pin links to each other and then to be set at three-phase six-beat energisation mode decoding output and to deliver to each phase drive circuit, four phase drive circuits are formed by Darlington transistor BDT63C, according to the input pulse phase place, and synchronously drive stepping motor rotation.The direction of rotation of stepping motor is determined by IC9 and IC10 operating state.With the four phase eight beat energisation mode is example, when IC9, IC10 control end 6,13 pin are high level, 5,12 when being low level, drive phase place and be followed successively by A → AB → B → BC → C → CD → DA → A, motor is clockwise, when control end 5,12 is a high level, when 6,13 pin are low level, drive phase place and be followed successively by B → BA → A → DA → D → DC → CB → B, the motor counter-rotating.The control of IC9, IC10 is controlled by limit circuit, and limit circuit is made up of IC3, IC2, CD4011, and wherein IC2 is connected to flip-flop circuit, controlled by clarinet K1, K2, and when static, K1, K2 always have one to be in normally off.If lens cap is initially closed condition, K2 closure then, 6 pin of IC2:B are low, and 4 pin of IC2:B are high, and 5 pin that make IC3:C are for high, and 3 and 4 pin of IC3:C are connected, and make 3 pin of IC4:A get low level and reset IC6 dead electricity, no-output, step motor stop.Spacing magnet T2 leaves K2, K2 and disconnects, the K1 closure, and 5 pin of IC3 are that high level is connected 3 and 4 pin of IC3, this is the camera lens opening procedure.At the same time, 12 pin of IC3 are low, and 10 and 11 pin disconnect, and get ready for oppositely triggering next time.
When lens cap is closed, need to be transmitted in device and face toward the projecting apparatus front again by a button with hand-held remote control, process IC6 must establish beginning output by cable as described above, because this moment, K1 was a closure state, 1 pin that makes IC2:D is low, its 3 pin output makes 5 and 12 pin of IC9, IC10 for high, the step-by-step impulse that decoder output is reverse, motor counter-rotating.When being inverted at spacing, magnet T2 makes the K2 closure, and 6 pin of IC2:B are low, and 4 pin of IC2:B are high, and 5 pin that make IC3 are for high, and 3,4 pin are connected, and the 3 pin low levels of IC4 are resetted, and the motor stall is for commutation rotation is next time got ready.
The demonstration that receives the control box operating state in two kinds of situation, back red light LED2 is promptly bright in the control box energising, green light LED1 is bright in the lens cap running.
The utility model receives control section a base plate (6), can be loaded on the different model projecting apparatus, and support (12) is housed on the base plate (6), and stepping motor (11) is fixed on the support (12), and balance weight (13) is equipped with stepping motor (11) axle.Lens cap (7) is linked to each other with balance weight (13) by connecting rod (10), and thin foam-rubber cushion (14) is arranged on the lens cap (7) again, to guarantee the sealing of lid camera lens of following time.Connecting rod (10) is gone up two blocks of spacing magnet (4), (5) is installed, limit signal is picked up by tongue tube (2), (3), sending into control box (1) handles, two indicator lights are arranged on the control box (1), only red light is bright when static, and green light is also simultaneously bright in stepping motor (11) drive lens cap (7) rotary course.Support (12) is gone up a damping fin (9) is installed, and is in the connecting rod (10) that opens and closes the position with locking and guarantees that lens cap (7) is stable.Receiver window (8) is equipped with in base plate (6) top.Radiating portion (Fig. 3) is a hand-held transmitter (15), can press button control lens cap (7) and open and close.Base plate (6) is the 4MM aluminium sheet, is fixed on the projecting apparatus front with 4 nails, is positioned at the installation site that lens location coincide to determine base plate (6), connecting rod (10) is the 4MM aluminium sheet, bore φ 4 holes above with weight reduction, balance weight (13) material is a copper, and lens cap (7) material is the 3MM plastic plate.Stepping motor (11) is selected 57BYG02 for use, and specification is 4 volts, looks the projecting apparatus model, and available 4 eight clap energisation mode mutually, also available three-phase six-beat energisation mode, and the projecting apparatus model state ECP3500 of present embodiment selects for use 4 eight to clap energisation mode mutually.Tongue tube (2,3) is 3X20, tightens up after good lens cap to be adjusted opens and closes the position.The opening-closing process of stepping motor (11) needed for 3 seconds approximately, adjusted R11 and C11 value guaranteeing the monostable time greater than the stepping motor ON time, present embodiment monostable trigger-action circuit R11 value 330K, and C11 value 100 μ can guarantee repeated trigger.
For len, the utility model has designed a kind of lens cap of making by the three-lens shape, and inner face has thin sponge again, at camera lens excircle place sponge is arranged again also, so that cover following time at lens cap camera lens is played sealing function.The border skull is directly driven by stepping motor, and no-spark and reducing gear do not produce interference to external world.
The utility model also can be used for the device that other need remote control to open and close except that the remote control that is applicable to ceiling projecting apparatus's lens cap opens and closes.
Claims (5)
1, a kind of ceiling projecting apparatus's lens cap remote-control open-and-shut device that is used for, by hand-held remote control reflector (15), receive control box (1), receiver window (S), support (12), balance weight (13), foam-rubber cushion (14) is formed, it is characterized in that directly driving revolving mirror skull (7) to opening and closing the position by connecting rod (10) by the stepping motor (11) that receives control box (1) control, spacing magnet (4 is housed on the connecting rod (10), 5), on base plate (6), tongue tube (2 is housed, 3) determine that lens cap (7) opens and closes the position, on the keying position, be provided with damping fin (9) to stablize lens cap (7).
2, ceiling projecting apparatus according to claim 1 lens cap remote-control open-and-shut device, it is characterized in that: open and close circuit and be connected to the monostable trigger-action circuit that can heavily trigger by IC4:A, IC4:A output 6 pin directly link to each other with feeder ear 16 pin of decoding circuit IC6, and the monostable time that opens and closes circuit is greater than stepping motor (11) ON time.
3, ceiling projecting apparatus according to claim 1 camera lens remote-control open-and-shut device, it is characterized in that: circuit is set forms by the DIP1 wire jumper, the working method of stepping motor (11) or be set to 2~7 pin by DIP1 and link to each other, it is the four phase eight beat energisation mode, also can change into 4~5,3~6,1~8 links to each other and is set to the three-phase six-beat energisation mode.
4, ceiling projecting apparatus according to claim 1 lens cap remote-control open-and-shut device is characterized in that: a lens cap (7) of making by the three-lens shape is made with the 3mm plastic board.
5, ceiling projecting apparatus according to claim 1 lens cap remote-control open-and-shut device, it is characterized in that: lens cap (7) inner face and camera lens excircle place all have thin sponge again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 94207480 CN2194055Y (en) | 1994-03-21 | 1994-03-21 | Remote control opening and closing device for lens cap of ceiling projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 94207480 CN2194055Y (en) | 1994-03-21 | 1994-03-21 | Remote control opening and closing device for lens cap of ceiling projector |
Publications (1)
Publication Number | Publication Date |
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CN2194055Y true CN2194055Y (en) | 1995-04-05 |
Family
ID=33825803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 94207480 Expired - Fee Related CN2194055Y (en) | 1994-03-21 | 1994-03-21 | Remote control opening and closing device for lens cap of ceiling projector |
Country Status (1)
Country | Link |
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CN (1) | CN2194055Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI427398B (en) * | 2011-05-30 | 2014-02-21 | Hon Hai Prec Ind Co Ltd | Projector holder and projector system |
CN103893935A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Forest fire fighting bomb releasing device based on rotary support module |
CN108267921A (en) * | 2018-01-22 | 2018-07-10 | 苏州戎维邦信息技术有限公司 | Can remote control projector lens block/open control box |
-
1994
- 1994-03-21 CN CN 94207480 patent/CN2194055Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI427398B (en) * | 2011-05-30 | 2014-02-21 | Hon Hai Prec Ind Co Ltd | Projector holder and projector system |
CN103893935A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Forest fire fighting bomb releasing device based on rotary support module |
CN108267921A (en) * | 2018-01-22 | 2018-07-10 | 苏州戎维邦信息技术有限公司 | Can remote control projector lens block/open control box |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |