CN2309321Y - Electric shock preventing alarm for crane - Google Patents
Electric shock preventing alarm for crane Download PDFInfo
- Publication number
- CN2309321Y CN2309321Y CN 97223219 CN97223219U CN2309321Y CN 2309321 Y CN2309321 Y CN 2309321Y CN 97223219 CN97223219 CN 97223219 CN 97223219 U CN97223219 U CN 97223219U CN 2309321 Y CN2309321 Y CN 2309321Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- electric field
- inserts
- field intensity
- utility
- 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
Abstract
The utility model relates to a safety alarm device of a mobile crane, wherein, a control switch is connected with an electric source circuit; a detected electric field intensity signal is connected with a multipath switch circuit by a detection circuit through an amplifying circuit and a filter circuit; an output thereof is connected with an oscillation transmitting circuit; the electric field intensity signal is connected with a singlechip circuit through an analogue-digital conversion circuit by a receiving circuit of a receiving unit; the output of the singlechip circuit is respectively connected with a voice circuit and a display circuit. The utility model can automatically judge the safe distance between a high-tension transmission line and a crane arm, and then decides whether send out a local alarm signal or not. The utility model has the advantages of high automatization, safe performance, convenient operation, etc.
Description
The utility model relates to a kind of crane job safety alarm device.
The runabout crane that industry and building industry are used, because its operation field is often to change, crane driver is difficult to accomplish to give one's full attention in operating process, when hoisting crane is worked near transmission line of electricity, usually causes casualty accident because of arm, accessory of lifting etc. near to or in contact with power transmission line.Also there is not at present a kind of intelligent runabout crane safety alarm device that can detect, send reception and display alarm automatically.
The utility model purpose provides a kind of safety distance and the automatic signal that is detected, runabout crane dangerous voltage annunciator of automatic reception and its signal of processes and displays of sending that can detect the arm of runabout crane apart from high-tension line automatically.
The utility model is by radiating portion, receiving unit, the display part, control and limit switch are formed, master cock inserts power circuit, testing circuit passes through the electric field intensity signal that detects to amplify, filter circuit inserts multi-way switch circuit, its output inserts vibration and transmission circuit, emission, the synchronizing signal that receives, the battery voltage detection signal, and limit switch through this machine address code through control data/encryption address encode circuit timesharing input mux circuit, the acceptor circuit of receiving unit links to each other by analog to digital conversion circuit electric field intensity signal with single chip circuit, the output of single chip circuit inserts sound circuit and display circuit respectively, acceptor circuit is installed in the body skin, and body skin is provided with telltale and indicator lamp.
The utlity model has characteristics such as structural principle is simple, degree of automation is high, performance is safe and reliable.
Accompanying drawing 2 is the utility model receiving unit schematic circuit diagram.
Accompanying drawing 4 is the utility model receiving unit body skin figure.
Below in conjunction with accompanying drawing the utility model is further described, be provided with master cock 1 in the power circuit of the present utility model, when runabout crane is worked, after crane arm is lifted to certain angle, master cock (mercury switch) is connected automatically, radiating portion enters mode of operation, testing circuit 2 mainly is made of technotron, the electric field intensity signal that detects is reached active filter circuit 3 backs of being made up of two-stage calculation amplifier by the amplifying circuit of being made up of emitter follower insert multi-way switch circuits 4, by U
24175 four d flip-flops of forming are exported four frequency division square-wave signals, with the control multiple way switch.The output of multi-way switch circuit links to each other with vibration transmission circuit 5, multiple way switch is an integrated circuit 4051, the vibration transmission circuit is respectively by vibration, radio frequency amplifies, emitter follower, power amplifier, the coupling transmission circuit is formed, emission, the synchronizing signal that receives, the battery voltage detection signal, and limit switch 6 sends through the multi-way switch circuit timesharing through this machine address code control data/encryption address encode circuit 7 timesharing input mux circuit (this machine address code control data/encryption address encode circuit 7 is integrated package 45026), the numeric data code that control data/five this machine address codes of encryption address encode circuit storage and limit switch provide, the oscillator NE555 of radiating portion inserts flip-flop circuit U
24175 produce four successively claps the signal control multi-way switch circuit.The acceptor circuit 8 of receiving unit is by high-frequency amplifier circuit (high-frequency amplifier circuit BG
1And set up circuit and form), (local-oscillator circuit is by BG for local-oscillator circuit
8And set up circuit and form), (mixer circuit is by BG for mixer circuit
2And set up circuit and form) amplifying circuit (amplifying circuit BG
3To BG
7And set up circuit and form) form, the electric field intensity signal that receives is inserted analog to digital conversion circuit 9 by the INO26 pin send into single chip circuit 10, single chip circuit is by central processor CPU, address latch U
5, memory under program U
4Deng composition, U
8To U
11Form shift register, LED
4To LED
6Be the seven segment code charactron, the output of single chip circuit inserts sound circuit 11 and display circuit 12 respectively, and acceptor circuit is installed in the body skin 3, and body skin is provided with and shows transmission line of electricity voltage charactron 14 and indicator lamp 15.The utility model adopts the work of mercury master cock control radiating portion, judge by carrying out intellectual analysis after the electric field intensity signal automatic reception of micro controller system with emission, the electric field intensity signal of ultra-high-tension power transmission line is converted into transmission line of electricity carries out alarm display, can judge whether that this machine sends the signal that receives according to the signal analysis that receives simultaneously apart from the safety distance signal of crane arm.
Claims (1)
1, the preventing mobile crane from getting etectric shock annunciator, be by radiating portion, receiving unit, the display part, control and limit switch are formed, it is characterized in that master cock 1 inserts power circuit, testing circuit 2 passes through the electric field intensity signal that detects to amplify, filter circuit 3 inserts multi-way switch circuit 4, its output inserts vibration and transmission circuit 5, emission, the synchronizing signal that receives, the battery voltage detection signal, and limit switch 6 through this machine address code through control data/encryption address encode circuit 7 timesharing input mux circuit, the acceptor circuit 8 of receiving unit links to each other by analog to digital conversion circuit 9 electric field intensity signal with single chip circuit 10, the output of single chip circuit inserts sound circuit 11 and display circuit 12 respectively, acceptor circuit is installed in the body skin 13, and body skin is provided with telltale 14 and indicator lamp 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223219 CN2309321Y (en) | 1997-05-23 | 1997-05-23 | Electric shock preventing alarm for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223219 CN2309321Y (en) | 1997-05-23 | 1997-05-23 | Electric shock preventing alarm for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309321Y true CN2309321Y (en) | 1999-03-03 |
Family
ID=33938022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97223219 Expired - Fee Related CN2309321Y (en) | 1997-05-23 | 1997-05-23 | Electric shock preventing alarm for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309321Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825666B (en) * | 2010-05-12 | 2013-03-06 | 上海市电力公司 | Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line |
| CN103159137A (en) * | 2013-03-13 | 2013-06-19 | 江苏创导电气有限公司 | Electricity-closing alarm device of crane |
| CN106429910A (en) * | 2016-06-24 | 2017-02-22 | 国网山东省电力公司寿光市供电公司 | Onsite work high-voltage line anti-touch early warning apparatus |
-
1997
- 1997-05-23 CN CN 97223219 patent/CN2309321Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825666B (en) * | 2010-05-12 | 2013-03-06 | 上海市电力公司 | Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line |
| CN103159137A (en) * | 2013-03-13 | 2013-06-19 | 江苏创导电气有限公司 | Electricity-closing alarm device of crane |
| CN106429910A (en) * | 2016-06-24 | 2017-02-22 | 国网山东省电力公司寿光市供电公司 | Onsite work high-voltage line anti-touch early warning apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140302792A1 (en) | Radio system with configurable links | |
| CN2309321Y (en) | Electric shock preventing alarm for crane | |
| CN213007425U (en) | Remote static tire pressure monitoring and reminding system | |
| CN101979256B (en) | Energy-saving automobile tyre burst early warning system | |
| CN201849261U (en) | Energy-efficient automobile blowout tire early-warning device | |
| CN204288408U (en) | Four road wireless theft-proof alarms | |
| JPS58184941U (en) | Wireless individual selective calling receiver | |
| CN203799497U (en) | Bus arrival calling wireless response system | |
| CN203706367U (en) | Combustible gas detection system with remote alarm function | |
| CN210119484U (en) | Vehicle-mounted air quality intelligent detection system | |
| CN209872163U (en) | Small-size flashlight door | |
| CN218772018U (en) | Microwave power synthesis amplifier | |
| CN201560063U (en) | Crane load limiting button switch | |
| CN214795664U (en) | Remote control dolly based on singlechip | |
| CN216926937U (en) | Roller kiln electric leakage detection circuit | |
| CN212966500U (en) | RF433 manual emergency alert button | |
| CN216272772U (en) | Lifting hook near-ground alarm device | |
| CN203382406U (en) | Wireless audible and visual alarm system of tower crane | |
| CN213213432U (en) | Open-leakage signal interface circuit | |
| CN216311042U (en) | Maintenance tool for communication cabin of power private network | |
| CN215180552U (en) | Control assembly maintenance device | |
| CN219935608U (en) | Explosion-proof monitoring device of dust remover | |
| CN212267511U (en) | Railway construction operation safety protection early warning system | |
| CN213987245U (en) | Control system of automatic unmanned crane | |
| CN216057031U (en) | Big dipper RDSS signal detector |
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 |