CN2569399Y - Anti-high voltage safety device - Google Patents
Anti-high voltage safety device Download PDFInfo
- Publication number
- CN2569399Y CN2569399Y CN 02263523 CN02263523U CN2569399Y CN 2569399 Y CN2569399 Y CN 2569399Y CN 02263523 CN02263523 CN 02263523 CN 02263523 U CN02263523 U CN 02263523U CN 2569399 Y CN2569399 Y CN 2569399Y
- Authority
- CN
- China
- Prior art keywords
- relay
- safety device
- high voltage
- sensor
- series connection
- 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 - Lifetime
Links
Abstract
The utility model discloses a safety device for preventing high voltage. A power supply branch circuit of the safety device, a branch circuit formed by the series connection of a sensor and a relay, and a branch circuit formed by the series connection of an unloading electromagnetic valve and a contact point of the relay are connected in parallel, wherein the ground end of the sensor is connected with the negative pole of the power supply branch circuit. The sensor can detect the existence of the high voltage in a certain distance, the signal of the sensor can drive the unloading electromagnetic valve to cause a machine to stop operating, the sensor simultaneously sends out the acoustic and light signals, and the electric shock intimidation for the operation of lifting type engineering machines brought by the high voltage can be efficiently stopped. The utility model has the advantages of low cost, simplicity and reliability, convenient installation and easily popularization. The utility model can be used as the safety device for preventing high voltage for the lifting type machines, such as automobile cranes, overhead working trucks, etc.
Description
Technical field
The utility model relates to the safety device of high lifting kind machineries such as a kind of autocrane, high-altitude operation vehicle.
Background technology
High lifting kinds such as known autocrane, high-altitude operation vehicle machinery does not have anti-high-voltage safety device.During actions such as this type of machinery is flexible in execution, revolution, luffing, the high-tension bus-bar around may touching causes car crash, brings about great losses.
Summary of the invention
The purpose of this utility model is that a kind of anti-high-voltage safety device will be provided, and this device can make high lifting kind machinery avoid touching high-tension bus-bar when operation.
The purpose of this utility model is achieved in that the branch road that a contact series connection of branch road, off-load electromagnetically operated valve and relay that power branch, transducer and the relay series connection of this safety device constitute constitutes is connected in parallel the negative pole of the ground termination power branch road of transducer.
Be in series with automatic reset switch in the branch road that a contact series connection of off-load electromagnetically operated valve and relay constitutes.
Power branch also is parallel with the warning branch road.
The warning branch road is to be connected across after another contact series connection, indicator light and the buzzer parallel connection of flashing relay and relay between the negative pole of the output of flashing relay and power branch.
The utility model is connected with transducer, transducer can detect the existence of high-tension electricity in certain distance, the signal of transducer drives the off-load electromagnetically operated valve stops operation machinery, sends the sound and light alarm signal simultaneously, and the electric shock that has stoped high-tension electricity to bring for the operation of high lifting kind machinery effectively threatens.Cost is low, and is simple and reliable, is convenient to install, and is easy to promote.The anti-high-voltage safety device that can be used as high lifting kind machineries such as autocrane, high-altitude operation vehicle uses.
Below in conjunction with drawings and Examples the utility model is elaborated.
Description of drawings
Accompanying drawing is the circuit diagram of an embodiment of the present utility model.
1. battery pack among the figure, 2. fuse, 3. transducer, 4. relay, 5. automatic reset switch, 6. the off-load electromagnetically operated valve, 7., first contact, 8. flashing relay, 9. second contact, 10. indicator light, 11. buzzers.
Embodiment
In the accompanying drawings, the branch road that constitutes of first contact, 7 series connection of the branch road, automatic reset switch 5 and the off-load electromagnetically operated valve 6 that constitute of the power branch, transducer 3 and relay 4 series connection that constitute of battery pack 1 and fuse 2 series connection and relay 4 is connected in parallel.The ground end G of transducer 3 connects battery pack 1 negative pole of power branch.
The series connection of second contact 9, indicator light 10 and buzzer 11 parallel connections of the flashing relay 8 of warning branch road and relay 4 are connected across between battery pack 1 negative pole of the output L of flashing relay 8 and power branch.
During use, transducer 3 is installed in the position that high lifting kind machinery may touch high-tension electricity, and off-load electromagnetically operated valve 6 is connected in the relief circuit of high lifting kind machinery.
During no high voltage, transducer 3 is not worked, and first contact 7 of relay 4 is not closed, and then off-load electromagnetically operated valve 6 no currents are not worked; Second contact 9 is not closed yet, and then indicator light 10 does not work, and buzzer 11 does not ring.
When entering the deathtrap, transducer 3 work, then relay 4 has electricity, first contact, 7 closures, off-load electromagnetically operated valve 6 has electric off-load, and equipment quits work; Simultaneously, second contact 9 is also closed, flashing relay 8 actions, and indicator light is 10 luminous, buzzer 11 sounding are reported to the police simultaneously.
If will positive mechanical work in the high-tension electricity zone, can operate automatic reset switch 5, to force 6 outages of off-load electromagnetically operated valve, then not off-load of equipment can work on.At this moment, because relay 4 has electricity, then flashing relay 8 has electricity, and indicator light 10 and buzzer 11 can continue to report to the police.When machinery district out of danger, transducer 3 inductions are less than the existence of high-tension electricity, and relay 4 does not have electricity, reports to the police and then removes.
Claims (4)
1. anti-high-voltage safety device, it is characterized in that the branch road that a contact series connection of the power branch, transducer of this safety device and branch road, off-load electromagnetically operated valve and relay that the relay series connection constitutes constitutes is connected in parallel the negative pole of the ground termination power branch road of transducer.
2. anti-high-voltage safety device according to claim 1 is characterized in that being in series with automatic reset switch in the branch road that contact series connection of off-load electromagnetically operated valve and relay constitutes.
3. anti-high-voltage safety device according to claim 1 is characterized in that power branch also is parallel with the warning branch road.
4. anti-high-voltage safety device according to claim 3, the branch road that it is characterized in that reporting to the police are to be connected across after another contact series connection, indicator light and the buzzer parallel connection of flashing relay and relay between the negative pole of the output of flashing relay and power branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263523 CN2569399Y (en) | 2002-08-01 | 2002-08-01 | Anti-high voltage safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263523 CN2569399Y (en) | 2002-08-01 | 2002-08-01 | Anti-high voltage safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2569399Y true CN2569399Y (en) | 2003-08-27 |
Family
ID=33729890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02263523 Expired - Lifetime CN2569399Y (en) | 2002-08-01 | 2002-08-01 | Anti-high voltage safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2569399Y (en) |
-
2002
- 2002-08-01 CN CN 02263523 patent/CN2569399Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090227 Address after: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee before: Xuzhou Heavy Machinery Plant |
|
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU HEACY MACHINE CO., LTD. Free format text: FORMER OWNER: XUZHOU HEACY MACHINERY PLANT Effective date: 20090227 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120801 Granted publication date: 20030827 |