CN202475330U - Alarm for preventing motor from being started by mistake - Google Patents
Alarm for preventing motor from being started by mistake Download PDFInfo
- Publication number
- CN202475330U CN202475330U CN2012201371876U CN201220137187U CN202475330U CN 202475330 U CN202475330 U CN 202475330U CN 2012201371876 U CN2012201371876 U CN 2012201371876U CN 201220137187 U CN201220137187 U CN 201220137187U CN 202475330 U CN202475330 U CN 202475330U
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- Prior art keywords
- motor
- alarm
- control circuit
- time relay
- normally
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- 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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Abstract
The utility model discloses an alarm for preventing a motor from being started by mistake. The alarm is characterized in that a time relay KT and a buzzer (A) are additionally arranged in a motor starting/stopping control circuit, the time relay KT is serially connected with a normally-closed auxiliary contact JC1 of an alternating current contactor, and the buzzer is serially connected with a normally-closed contact KT1 of the time relay. The alarm can effectively prevent accidents that people die due to electric shock and equipment is damaged because a failed motor control circuit is supplied with electricity by mistake or the motor is started automatically by delay when a power switch of the motor control circuit is not disconnected due to negligence of operation and other motors are normally started.
Description
Technical field
The utility model relates to electronic device in the oil recovery field, oil field, is a kind of anti-motor error starting alarm.
Background technology
[0002] in oil recovery field, oil field; Power-actuated control device of electric motor; Alarm free is pointed out disconnecting power switch after pressing stop button; Because the mains switch of negligence of operation electromotor control circuit does not break off, and normally starts other motor mistiming and send electricity with the fault electromotor control circuit, the dead accident with device damage that causes getting an electric shock takes place.Mains switch is often forgotten in shutdown of pumping machine maintenance similarly, and the last machine maintenance of workman is because self-opening device delayed startup motor causes casualties and device damage.
Summary of the invention
In order to solve the problem that exists in the background technology; The utility model provides a kind of anti-motor error starting alarm, this alarm can effectively avoid since negligence of operation do not break off the mains switch of electromotor control circuit, normally start other motor mistiming with the fault electromotor control circuit send electricity or time-delay from open motor, the accident of cause getting an electric shock dead and device damage takes place.
The technical scheme of the utility model is: this anti-motor error starting alarm is set up time relay KT, buzzer in the motor starting or stopping control circuit; Time relay KT is connected in series with A.C. contactor normally closed auxiliary contact JC1, and buzzer is connected in series with the normally-closed contact KT1 of time relay KT.
The utlity model has following beneficial effect: this alarm can effectively avoid since negligence of operation do not break off the mains switch of electromotor control circuit, normally start other motor mistiming with the fault electromotor control circuit send electricity or time-delay from open motor, the accident of cause getting an electric shock dead and device damage takes place.Be beneficial to safety operation, cost is low, and is simple in structure, is convenient to install.Avoid accident to take place.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1; Should prevent motor error starting alarm; In the motor starting or stopping control circuit, set up time relay KT, buzzer A, time relay KT is connected in series with A.C. contactor normally closed auxiliary contact JC1, and buzzer A is connected in series with the normally-closed contact KT1 of the time relay.
As shown in Figure 1, in the frame of broken lines this novel circuit diagram.During shutdown; A.C. contactor JC normally closed auxiliary contact JC1 adhesive when pressing stop button TA; (the long-time warning burnt buzzer when preventing unattended operation) broken off in time relay KT normally-closed contact KT1 time-delay reported to the police buzzer A 1 minute; Air switch HK is broken off in prompting, prevents the error starting motor, prevents that the oil pumper time-delay is from opening.During actuating motor, the air switch HK that closes, normally closed auxiliary contact JC1 breaks off when pressing start button QA, makes buzzer A stop to report to the police.
Through field experiment; Reached the design application target fully, after the enforcement, when pressing the stop button shutdown; The alarm disconnecting power switch; As long as draw back the coil circuit (making oil pumper time-delay self-opening device circuit break off malfunctioning) that mains switch cuts off A.C. contactor,, also do not have in the fault electromotor control circuit even the motor start-up button is pressed in misoperation.After pump and oil pumper control circuit practice, do not take place again because of error starting cause getting an electric shock dead and accident device damage.
Claims (1)
1. anti-motor error starting alarm; It is characterized in that: in the motor starting or stopping control circuit, set up time relay KT, buzzer (A); Time relay KT is connected in series with A.C. contactor normally closed auxiliary contact JC1, and buzzer (A) is connected in series with the normally-closed contact KT1 of time relay KT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201371876U CN202475330U (en) | 2012-04-03 | 2012-04-03 | Alarm for preventing motor from being started by mistake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201371876U CN202475330U (en) | 2012-04-03 | 2012-04-03 | Alarm for preventing motor from being started by mistake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475330U true CN202475330U (en) | 2012-10-03 |
Family
ID=46923452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201371876U Expired - Fee Related CN202475330U (en) | 2012-04-03 | 2012-04-03 | Alarm for preventing motor from being started by mistake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106798979A (en) * | 2017-03-21 | 2017-06-06 | 陆吉胜 | A kind of Emergency Motor Vehicles glass pane miniature blasting device |
| CN107601203A (en) * | 2017-10-23 | 2018-01-19 | 金川集团股份有限公司 | A kind of list rope cage catching device action detection device and detection method |
-
2012
- 2012-04-03 CN CN2012201371876U patent/CN202475330U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106798979A (en) * | 2017-03-21 | 2017-06-06 | 陆吉胜 | A kind of Emergency Motor Vehicles glass pane miniature blasting device |
| CN107601203A (en) * | 2017-10-23 | 2018-01-19 | 金川集团股份有限公司 | A kind of list rope cage catching device action detection device and detection method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20180403 |