CN201438795U - Dust cover device - Google Patents
Dust cover device Download PDFInfo
- Publication number
- CN201438795U CN201438795U CN2009201594285U CN200920159428U CN201438795U CN 201438795 U CN201438795 U CN 201438795U CN 2009201594285 U CN2009201594285 U CN 2009201594285U CN 200920159428 U CN200920159428 U CN 200920159428U CN 201438795 U CN201438795 U CN 201438795U
- Authority
- CN
- China
- Prior art keywords
- dust
- signal
- control module
- cover device
- proof cover
- 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
Links
Images
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to a dust cover device, which is applied to electronic equipment, and comprises a positioning plate with a through hole; a dust cover movably arranged on the positioning plate; a driving device capable of driving the dust cover to slide between the first and the second positions on the positioning plate, so as to open and close the through hole; a first position detector which is arranged on the positioning plate and used to send a first signal when the dust cover moves to the first position; a second position detector arranged on the positioning plate which is used to send a second signal when the dust cover moves to the second position; an operation control module used to control the driving of the driving device and control the driving device to stop driving when receives the first or the second signal. The dust cover device can automatically open and close, can perform remote control operation, can detect the malfunction during the opening and closing, and avoid damages caused by factors such as foreign matter clamping.
Description
Technical field
The utility model relates to a kind of assembly of electronic equipment, more particularly, relates to a kind of dust-proof cover device.
Background technology
Existing a lot of image capture equipment, image projector equipment all are equipped with dust cap, are used for len.In use, dust cap is opened, and light can be passed through; Under the non-working condition, dust cap cuts out, and prevents that dust etc. from falling on the camera lens.
With the projecting apparatus is example, and present dust cap mostly is external.Before using projecting apparatus, need take off dust cap; When not using projecting apparatus, need dust cap cuts out, to reduce the exposed chance of camera lens.But in many occasions, for example projecting apparatus hangs when being located at higher position such as ceiling, is difficult for closing dust cap with manual mode, must ascend a height and just can operate, and this may occur from danger of falling from high, causes potential safety hazard.
The utility model content
The technical problems to be solved in the utility model is, needs manual operation, has the defective of potential safety hazard at dust-proof cover device of the prior art, but a kind of dust-proof cover device of automatic open close is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of dust-proof cover device, be applied to an electronic equipment, wherein, described dust-proof cover device comprises:
Location-plate has an open-work;
Dust cap is arranged on the described location-plate movably;
Drive unit drives described dust cap and moves between the primary importance on the described location-plate and the second place, to open or to close described open-work;
Be arranged on the primary importance detector on the described location-plate, be used for when described dust cap moves to described primary importance, sending first signal;
Be arranged on the second place detector on the described location-plate, be used for when described dust cap moves to the described second place, sending secondary signal; And
Operation control module is used to control the driving of described drive unit, and when receiving described first signal or secondary signal, controls described drive unit and stop to drive.
According to dust-proof cover device described in the utility model, described dust-proof cover device also comprises:
With the timer that described operation control module is connected, be used for the time of the described drive unit of the unidirectional Continuous Drive of the described operation control module of timing, and when timing exceeds the scheduled time, send timeout signal; And
Unusual control module is connected with described timer, when being used to receive described timeout signal, makes described operation control module stop to drive described drive unit.
According to dust-proof cover device described in the utility model, described unusual control module is sent alarm control signal when receiving described timeout signal;
Described dust-proof cover device also comprises alarm, is connected with described unusual control module, when receiving described alarm control signal, sends alarm signal.
According to dust-proof cover device described in the utility model, described operation control module comprises: open the control submodule, be used to control described drive unit and move with first direction, and when receiving described first signal, control described drive unit and stop action;
Described unusual control module comprises: open unusual control module, be used at described dust cap opening process, when receiving described timeout signal, make described unlatching control submodule stop to drive described drive unit, and send alarm control signal to described alarm.
According to dust-proof cover device described in the utility model, described operation control module also comprises: the closing control submodule is used to control described drive unit and moves with second direction, and when receiving described secondary signal, controls described drive unit and stop action;
Described unusual control module also comprises: close unusual control module, be used at described dust cap pass closed procedure, when receiving described timeout signal, make described closing control submodule stop to drive described drive unit, and, make it control described drive unit and move with first direction to described unlatching control submodule transmission unlatching debug signal.
According to dust-proof cover device described in the utility model, describedly close unusual control module and also comprise:
First debugging unit, be used for after described unlatching control submodule receives described unlatching debug signal, when described drive unit drives described dust cap and opens in the given time, send shutdown signal again to described closing control submodule, control described drive unit and move with second direction once more; And
Second debugging unit is used for, making described closing control submodule stop to drive described drive unit, and sending alarm control signal to described alarm when exceeding the scheduled time with second direction action once more described.
According to dust-proof cover device described in the utility model, described first, second position detector is the two-way sense switch of mechanical touch-type.
According to dust-proof cover device described in the utility model, described electronic equipment comprises projecting apparatus, described projecting apparatus comprises the protecgulum with hole, and the described open-work of described location-plate is coaxial with the described hole of described protecgulum, and described location-plate is arranged between the camera lens and described protecgulum of described projecting apparatus.
According to dust-proof cover device described in the utility model, described dust-proof cover device also comprises: receive the wireless signal receiver module of wireless signal, be connected with described operation control module, whether accessory drive moves in order to indicate described operation control module.
According to dust-proof cover device described in the utility model, described wireless signal is to be sent by remote control.
Implement dust-proof cover device of the present utility model, have following beneficial effect: this dust-proof cover device can open and close automatically, and the dust-proof cover device of manual opening-closing in the prior art can be in the operation of controlling at a distance.And this dust-proof cover device can be detected the misoperation in the opening-closing process, can avoid the infringement that causes because of factors such as foreign matter snap in the opening-closing process.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram that dust-proof cover device is applied to projecting apparatus in the utility model;
Fig. 2 is the decomposing schematic representation of dust-proof cover device and protecgulum in the utility model;
Fig. 3 is the rearview of dust-proof cover device in the utility model;
Fig. 4 is the partial schematic diagram of dust-proof cover device in the utility model;
Fig. 5 is the control system schematic diagram of dust-proof cover device of the present utility model;
Fig. 6 is the unlatching flow chart of dust-proof cover device of the present utility model;
Fig. 7 is the closing flow path figure of dust-proof cover device of the present utility model.
Embodiment
In utility model, being applied to projecting apparatus with dust-proof cover device is that example describes, but the utility model is not limited thereto, and this dust-proof cover device also can be applicable to other electronic equipment, for example camera etc.As shown in Figure 1, the main body 100 of projecting apparatus comprises protecgulum 101, and is provided with camera lens (not shown) in main body 100.Protecgulum 101 is provided with hole 102, passes through for light.Between protecgulum 101 and camera lens, be provided with dust-proof cover device 103.
As shown in Figures 2 and 3, this dust-proof cover device 103 comprises location-plate 104 and is arranged on dust cap 105 on the location-plate 104 movably.Location-plate 104 is provided with open-work 106, with the hole 102 on the protecgulum 101 coaxial over against, pass through for light.
This dust cap 105 is lamellar, and first end slidably is set on first guide rod 108 by two first lugs 107, and the two ends of first guide rod 108 are fixed on first end face of location-plate 104.Second end of dust cap 105 is set on second guide rod 110 slidably by second lug 109, and the two ends of second guide rod 110 are fixed on second end face of location-plate 104.
In conjunction with Fig. 4, on first end face of location-plate 104, be fixed with the gear 112 that drive unit 111 and driven device 111 drive.This drive unit 111 can be a motor for example.On the bottom surface of dust cap 105, be set with tooth bar 113 with gear 112 engagements.When drive unit 111 during respectively towards the operation of first direction, second direction, can drive dust caps 105 by gear 112 and between the primary importance on the location-plate 104 (unlatching put in place position) and the second place (closing the position that puts in place), move, with unlatching or close open-work 106 on the location-plate 104 and the hole 102 on the described protecgulum 101.
Near an end of first guide rod 108, be provided with primary importance detector 114, when dust cap 105 unlatchings put in place, can touch it.Near the other end of first guide rod 108, be provided with second place detector 115, close when putting in place when dust cap 105, can touch it.This first, second position detector 114,115 is the two-way sense switch of mechanical touch-type, when being subjected to dust cap 105 touchings, can producing the indication unlatching respectively and put, closes first signal, the secondary signal that put in place in place.
Need to prove that this dust-proof cover device 103 is independently of one another with protecgulum 101, is an independent module, in the different electronic equipment of outward appearance, even the shape difference of protecgulum 101 also can adopt identical dust-proof cover device 103.
Fig. 5 is the control system schematic diagram of dust-proof cover device of the present utility model.As shown in Figure 5, this dust-proof cover device 103 also comprises the operation control module 116 that is connected with first, second position detector 114,115 and drive unit 111, be used for the driving of this drive unit 111 of control under the high levle level, and when receiving first, second signal that first, second position detector 114,115 sent, accessory drive 111 stops to drive.This operation control module 116 links to each other with wireless signal receiver module 126, and wireless signal receiver module 126 is used to receive wireless signal, and whether controls this drive unit 111 actions according to wireless signal indication operation control module 116.These dust-proof cover device 103 correspondences one are used to send the far-end control device (not shown) of this wireless signal, operate to send this wireless signal for the user.Wherein this wireless signal for example can be, infrared ray or electromagnetic wave.
This dust-proof cover device 103 also comprises the timer 117 that is electrically connected with operation control module 116, when operation control module 116 begins to drive these drive unit 111 unidirectional continuous actions, this timer 117 promptly picks up counting, and when this drive unit 111 stopped, timer 117 stopped timing.Timer 117 is connected with unusual control module 118, and this unusual control module 118 also is connected with alarm 119.When timer 117 timing (for example surpass preset time, 5 seconds), operation control module 116 is not received yet to close and is put in place or open when putting signal in place, timer 117 can send timeout signal to unusual control module 118, after unusual control module 118 is received timeout signal, level can be placed low level, make operation control module 116 stop to drive this drive unit 111; Simultaneously send alarm control signal, alarm 119 is reported to the police by modes such as luminous or sounding to alarm 119.
This operation control module 116, timer 117 and unusual control module 118 can adopt for example microcontroller (Micro-Control Unit is called for short MCU) enforcement, also can be implemented by equivalent electric circuit respectively.This alarm 119 for example can be, light-emitting diode or buzzer.
Particularly, this operation control module 116 comprises: open control submodule 120, move towards first direction by accessory drive 111, control dust cap 105 is opened, and receiving indication that primary importance detector 114 sent when opening first signal that puts in place, accessory drive 111 stops action; And closing control submodule 121, towards second direction action, control dust cap 105 cuts out by accessory drive 111, and is receiving after indication that second place detector 115 sent closes the secondary signal that puts in place, and accessory drive 111 stops action.
Unlatching control submodule 120, closing control submodule 121 all are connected with timer 117, when among both wherein one when beginning to drive these drive unit 111 unidirectional continuous actions, this timer 117 promptly picks up counting, when this drive unit 111 stopped unidirectional continuous action, timer 117 stopped timing.
This unusual control module 118 comprises opens unusual control module 122 and closes unusual control module 123, all is connected with timer 117 and alarm 119.This is closed unusual control module 123 and also comprises first debugging unit 124 and second debugging unit 125.
In the opening process of dust cap 105, do not receive first signal if open control submodule 120 in the given time, timer 117 can send timeout signal to opening unusual control module 122, open after unusual control module 122 receives timeout signal, level can be placed low level, make that opening control submodule 120 stops to drive this drive unit 111; Simultaneously send alarm control signal, alarm 119 is reported to the police by modes such as luminous or sounding to alarm 119.
In the closed procedure of the pass of dust cap 105, if closing control submodule 121 does not receive secondary signal in the given time, timer 117 can send timeout signal to closing unusual control module 123, this is closed after unusual control module 123 receives timeout signal, level can be placed low level, make closing control submodule 121 can not drive this drive unit 111, this is closed unusual control module 123 and produces the unlatching debug signal simultaneously, and it is passed to unlatching control submodule 120.Open control submodule 120 accessory drives 111 and move to open dust cap 105 towards first direction, timer 117 restarts timing.
Receive first signal if open control submodule 120 in the given time, first debugging unit 124 can send shutdown signal again to closing control submodule 121, these closing control submodule 121 accessory drives 111 move towards second direction once more, dust cap 105 cuts out, and timer 117 picks up counting.If closing control submodule 121 does not receive secondary signal in the given time, timer 117 can send timeout signal, and second debugging unit 125 can place low level with level, makes closing control submodule 121 can not drive this drive unit 111; Simultaneously send alarm control signal, alarm 119 is reported to the police by modes such as luminous or sounding to alarm 119.
Do not receive first signal if open control submodule 120 in the given time, timer 117 can send timeout signal to opening unusual control module 122, open after unusual control module 122 receives timeout signal, level can be placed low level, make that opening control submodule 120 can not drive this drive unit 111; Simultaneously send alarm control signal, alarm 119 is reported to the police by modes such as luminous or sounding to alarm 119.
The unlatching flow chart of dust-proof cover device 103 is described hereinafter with reference to Fig. 6 and Fig. 7.As shown in Figure 6, in step 201, whether dust cap 105 begins to open, in step 202, check dust cap 105 standard-sized sheet, if dust cap 105 touching primary importance detectors 114, operation control module 116 is received first signal, shows that dust cap 105 unlatchings put in place, and flow process jumps to step 203, stop to open dust cap 105, opening process finishes in step 204.
In step 202, if operation control module 116 is not received first signal, show that dust cap 105 does not have complete opening, in the step 205, dust cap 105 continues to open.In step 206, judged whether that within the predetermined time (for example, 5 seconds) arrives fully open position, if flow process jumps to step 203, stop to open dust cap 105, opening process finishes in step 204.In step 206, (for example, 5 seconds) arrives fully open position if do not have within the predetermined time, and flow process proceeds to step 207, and the power supply start pin on the powered-down plate makes it place low level, stops to drive this drive unit 111; In step 208, alarm 119 sends alarm signal.
As shown in Figure 7, in step 301, dust cap 105 begins to cut out, in step 302, whether inspection dust cap 105 has been closed and has been put in place, if dust cap 105 touching second place detectors 115, operation control module 116 is received secondary signal, flow process jumps to step 303, and phase down dust cap 105 closes closed procedure and finishes in step 304.
In step 302,, show that dust cap 105 does not cut out to put in place that in the step 305, dust cap 105 continues to cut out if control module 117 do not receive secondary signal.In step 306, judged whether within the predetermined time that (for example, 5 seconds) closes to put in place that if flow process jumps to step 303, phase down dust cap 105 closes closed procedure and finishes in step 304.
In step 306, if put in place because of for example foreign matter snaps in to cause failing closing in the given time, flow process proceeds to step 307, and dust cap 105 is opened, to avoid dangerous.In step 308, judge whether to arrive within the predetermined time fully open position, if flow process jumps to step 311, dust cap 105 cuts out again.In following step 312, judged whether within the predetermined time that (for example, 5 seconds) closes to put in place that if flow process proceeds to step 303, phase down dust cap 105 closes closed procedure and finishes in step 304.In step 312, if not within the predetermined time (for example, 5 seconds) close and put in place, flow process proceeds to step 309, the power supply start pin on the powered-down plate makes it place low level, stops to drive this drive unit 111; In step 310, alarm 120 is reported to the police.
In step 308, (for example, 5 seconds) arrives fully open position if do not have within the predetermined time, and flow process proceeds to step 309, and the power supply start pin on the powered-down plate makes it place low level, stops to drive this drive unit 111; In step 310, alarm 120 is unlocked, and signal gives the alarm.
Dust-proof cover device 103 of the present utility model can open and close automatically, and the dust-proof cover device of manual opening-closing in the prior art can be in carrying out control operation at a distance, the operation of need not ascending a height.And this dust-proof cover device 103 can be detected the misoperation in the opening-closing process, can avoid the infringement that causes because of factors such as foreign matter snap in the opening-closing process.
Claims (10)
1. a dust-proof cover device is applied to an electronic equipment, it is characterized in that, described dust-proof cover device comprises:
Location-plate has an open-work;
Dust cap is arranged on the described location-plate movably;
Drive unit drives described dust cap and moves between the primary importance on the described location-plate and the second place, to open or to close described open-work;
Be arranged on the primary importance detector on the described location-plate, be used for when described dust cap moves to described primary importance, sending first signal;
Be arranged on the second place detector on the described location-plate, be used for when described dust cap moves to the described second place, sending secondary signal; And
Operation control module is used to control the driving of described drive unit, and when receiving described first signal or secondary signal, controls described drive unit and stop to drive.
2. dust-proof cover device according to claim 1 is characterized in that, described dust-proof cover device also comprises:
With the timer that described operation control module is connected, be used for the time of the described drive unit of the unidirectional Continuous Drive of the described operation control module of timing, and when timing exceeds the scheduled time, send timeout signal; And
Unusual control module is connected with described timer, when being used to receive described timeout signal, makes described operation control module stop to drive described drive unit.
3. dust-proof cover device according to claim 2 is characterized in that, described unusual control module is sent alarm control signal when receiving described timeout signal;
Described dust-proof cover device also comprises alarm, is connected with described unusual control module, when receiving described alarm control signal, sends alarm signal.
4. dust-proof cover device according to claim 3, it is characterized in that described operation control module comprises: open the control submodule, be used to control described drive unit and move with first direction, and when receiving described first signal, control described drive unit and stop action;
Described unusual control module comprises: open unusual control module, be used at described dust cap opening process, when receiving described timeout signal, make described unlatching control submodule stop to drive described drive unit, and send alarm control signal to described alarm.
5. dust-proof cover device according to claim 4, it is characterized in that described operation control module also comprises: the closing control submodule is used to control described drive unit and moves with second direction, and when receiving described secondary signal, control described drive unit and stop action;
Described unusual control module also comprises: close unusual control module, be used at described dust cap pass closed procedure, when receiving described timeout signal, make described closing control submodule stop to drive described drive unit, and, make it control described drive unit and move with first direction to described unlatching control submodule transmission unlatching debug signal.
6. dust-proof cover device according to claim 5 is characterized in that, describedly closes unusual control module and also comprises:
First debugging unit, be used for after described unlatching control submodule receives described unlatching debug signal, when described drive unit drives described dust cap and opens in the given time, send shutdown signal again to described closing control submodule, control described drive unit and move with second direction once more; And
Second debugging unit is used for, making described closing control submodule stop to drive described drive unit, and sending alarm control signal to described alarm when exceeding the scheduled time with second direction action once more described.
7. dust-proof cover device according to claim 1 is characterized in that, described first, second position detector is the two-way sense switch of mechanical touch-type.
8. dust-proof cover device according to claim 1, it is characterized in that, described electronic equipment comprises projecting apparatus, described projector comprises the protecgulum with hole, the described open-work of described location-plate is coaxial with the described hole of described protecgulum, and described location-plate is arranged between the camera lens and described protecgulum of described projecting apparatus.
9. dust-proof cover device according to claim 1, it is characterized in that, described dust-proof cover device also comprises: receive the wireless signal receiver module of wireless signal, be connected with described operation control module, whether accessory drive moves in order to indicate described operation control module.
10. dust-proof cover device according to claim 9 is characterized in that described wireless signal is to be sent by remote control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201594285U CN201438795U (en) | 2009-06-17 | 2009-06-17 | Dust cover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201594285U CN201438795U (en) | 2009-06-17 | 2009-06-17 | Dust cover device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438795U true CN201438795U (en) | 2010-04-14 |
Family
ID=42400763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201594285U Expired - Fee Related CN201438795U (en) | 2009-06-17 | 2009-06-17 | Dust cover device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438795U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608849A (en) * | 2012-03-23 | 2012-07-25 | 深圳雅图数字视频技术有限公司 | Projector lens protection device and projector |
| CN102650816A (en) * | 2011-02-23 | 2012-08-29 | 亚洲光学股份有限公司 | Cap module of optical lens |
| CN102740058A (en) * | 2012-05-31 | 2012-10-17 | 成都元创测控技术股份有限公司 | Industrial image monitoring method and system, server and monitoring terminal |
| CN102819173A (en) * | 2011-06-06 | 2012-12-12 | 精工爱普生株式会社 | Projector |
| WO2017067104A1 (en) * | 2015-10-20 | 2017-04-27 | 成都市极米科技有限公司 | Projection device |
| CN107911675A (en) * | 2017-11-02 | 2018-04-13 | 苏州佳世达光电有限公司 | Cover controlling device and rod driving device |
| WO2019184422A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳光峰科技股份有限公司 | System and method for controlling sliding cover device |
| JP2022524201A (en) * | 2019-12-25 | 2022-04-28 | チョントゥー ジミー テクノロジー カンパニー リミテッド | Projector and projector on / off control method |
-
2009
- 2009-06-17 CN CN2009201594285U patent/CN201438795U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650816A (en) * | 2011-02-23 | 2012-08-29 | 亚洲光学股份有限公司 | Cap module of optical lens |
| CN102650816B (en) * | 2011-02-23 | 2015-03-25 | 亚洲光学股份有限公司 | Cap module of optical lens |
| CN102819173A (en) * | 2011-06-06 | 2012-12-12 | 精工爱普生株式会社 | Projector |
| CN102819173B (en) * | 2011-06-06 | 2014-12-10 | 精工爱普生株式会社 | Projector |
| CN102608849A (en) * | 2012-03-23 | 2012-07-25 | 深圳雅图数字视频技术有限公司 | Projector lens protection device and projector |
| CN102740058A (en) * | 2012-05-31 | 2012-10-17 | 成都元创测控技术股份有限公司 | Industrial image monitoring method and system, server and monitoring terminal |
| WO2017067104A1 (en) * | 2015-10-20 | 2017-04-27 | 成都市极米科技有限公司 | Projection device |
| CN107911675A (en) * | 2017-11-02 | 2018-04-13 | 苏州佳世达光电有限公司 | Cover controlling device and rod driving device |
| WO2019184422A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳光峰科技股份有限公司 | System and method for controlling sliding cover device |
| CN110320824A (en) * | 2018-03-28 | 2019-10-11 | 深圳光峰科技股份有限公司 | A kind of cover sliding device control system and method |
| JP2022524201A (en) * | 2019-12-25 | 2022-04-28 | チョントゥー ジミー テクノロジー カンパニー リミテッド | Projector and projector on / off control method |
| JP7303897B2 (en) | 2019-12-25 | 2023-07-05 | チョントゥー ジミー テクノロジー カンパニー リミテッド | Projector and projector ON/OFF control method |
| US11803111B2 (en) | 2019-12-25 | 2023-10-31 | Chengdu Xgimi Technology Co Ltd | Projector and method for controlling a projector to power on or off |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201438795U (en) | Dust cover device | |
| CN204010196U (en) | A kind of intelligent substation safe fence device | |
| CN107294206B (en) | Photovoltaic cabin type intelligent switching station | |
| CN103252053A (en) | Singlechip-based small routing inspection controller for fire pump group | |
| CN109707239A (en) | A kind of door lock assembly and detection method of machine photoelectric combination detection door switch state | |
| US20130241317A1 (en) | Short-circuiting device for a photovoltaic array | |
| CN112289619B (en) | Control device for grounding switch | |
| CN108005484A (en) | A kind of smart lock of two-stage interlock function | |
| CN201359978Y (en) | Residual current circuit breaker with countdown and automatic reclosing functions | |
| CN104362586A (en) | Water logging monitoring and protecting device | |
| CN108428578B (en) | Remote control actuator for triggering button switch | |
| CN207847286U (en) | A kind of smart lock of two-stage interlock function | |
| CN204760766U (en) | Block terminal with illumination function | |
| CN110011419B (en) | Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof | |
| CN204179530U (en) | A kind of converting equipment indication device | |
| CN208242702U (en) | A kind of main transformer drive cat device | |
| TWI382165B (en) | Manometric counter | |
| CN117955064B (en) | Electric fireproof current-limiting type protector with indication function | |
| CN221496061U (en) | Leakage protector outage manipulator and remote outage system | |
| CN201946951U (en) | Intelligent electricity-theft prevention module for power measurement | |
| CN108955947A (en) | A kind of laboratory wireless temperature measuring device | |
| CN104979759A (en) | Distribution box with lighting function | |
| CN101699357B (en) | Fault emergency processing system and fault emergency processing method for refuse transfer station | |
| CN215565291U (en) | Household intelligent safety prompt system | |
| CN202929422U (en) | Manual mode control system of multi-parking space transitional device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20160617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |