CN201109674Y - Safety closing device of lifting machine - Google Patents
Safety closing device of lifting machine Download PDFInfo
- Publication number
- CN201109674Y CN201109674Y CNU2007200301305U CN200720030130U CN201109674Y CN 201109674 Y CN201109674 Y CN 201109674Y CN U2007200301305 U CNU2007200301305 U CN U2007200301305U CN 200720030130 U CN200720030130 U CN 200720030130U CN 201109674 Y CN201109674 Y CN 201109674Y
- Authority
- CN
- China
- Prior art keywords
- elevating
- travel switches
- relay
- travel switch
- safety
- 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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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses an elevating conveyor safety blocking device, which consists of a commutator tranformator (1), a rectifying bridge (2), a direct current contactor (4), an alternating current contactor (7), a direct current relay (8) and an alternating current relay (9). The elevating conveyor safety blocking device is characterized in that a travel switch 1 (5) and a travel switch 2 (6) are connected on the rectifying bridge (2); an operating handle (3) is connected on the travel switch 1 (5). Thus, the device has simple structure, convenient safe and reliable operation, thereby greatly reducing the human element influence on the elevating device operation, and effectively preventing elevating accidents; and the device is especially suitable for the elevating system in a mine.
Description
Technical field:
The utility model relates to a kind of safety interlock system, particularly a kind of mine hoist safety interlock system.
Background technology:
Gig is undertaken the task of conveying people and material in the mine, and each stage casing safety interlock system of mine causes the gig operation to interrupt suddenly or human casualty accident because vibration, wearing and tearing or people's factors such as misoperation can not remain the excellent contact state.
Traditional mine stage casing safety interlock system, be that two relative contact copper sheets that are installed on the safety door are serially connected in the mine hoist safety control loop, need only the reasons such as misoperation of the safety door in any stage casing like this because of vibration, wearing and tearing or people, all easily cause the copper sheet bad contact on the safety door, and cause the safety misadventure in the gig operational process.
Summary of the invention:
The purpose of this utility model is exactly that a kind of mine hoist safety closing appliance simple in structure, safe and reliable, easy to use will be provided.
The purpose of this utility model is achieved in that a kind of mine hoist safety closing appliance, form by rectifier transformer (1), rectifier bridge (2), DC contactor (4), AC contactor (7), DC relay (8), AC relay (9), it is characterized in that described rectifier bridge (2) upward connects travel switches I (5), travel switches I I (6), travel switches I (5) goes up attended operation handle (3).
The utility model compared with prior art has the following advantages:
Connect travel switches I (5), travel switches I I (6) owing to adopted rectifier bridge (2) to go up, travel switches I (5) goes up the version of attended operation handle (3), thereby, simple in structure, easy to operate, safe and reliable, significantly reduced the influence of human element, contained the generation of lifting accident effectively the lifting means operation.
Description of drawings:
Figure: be the utility model concrete structure scheme drawing
1, rectifier transformer 2, rectifier bridge 3, operating handle 4, DC contactor 5, travel switches I 6, travel switches I I 7, AC contactor 8, DC relay 9, AC relay
The specific embodiment:
Travel switches I (5), travel switches I I (6) select JLXK for use
1-411, voltage 380V, electric current 0.3A, rectifier bridge (2) go up and connect travel switches I (5), travel switches I I (6), and travel switches I (5) goes up attended operation handle (3).
During use, when lifting container need be parked in certain level, personnel use operating handle (3) at internal tank, make travel switch (5) when open contact is opened, DC relay (8) dead electricity, AC contactor (7) outage, thereby cause that AC relay (9) contact disconnects, safety return circuit outage gig is out of service, behind the closed safe latching door, personnel use operating handle (3) at internal tank, make travel switches I (5) open contact closure, DC relay (8), DC relay (8) open contact closure gets AC contactor (7), thereby cause AC relay (9) contact closure, safety return circuit gets electric gig and can move, and travel switches I I (6) is used for determining whether safety interlock system is reliable, do not move if close unreliable then gig, thereby satisfy the condition of safe operation, improved the safety of operation, be particularly suitable for the use of mine hoisting system.
Claims (1)
- A kind of mine hoist safety closing appliance, form by rectifier transformer (1), rectifier bridge (2), DC contactor (4), AC contactor (7), DC relay (8), AC relay (9), it is characterized in that described rectifier bridge (2) upward connects travel switches I (5), travel switches I I (6), travel switches I (5) goes up attended operation handle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200301305U CN201109674Y (en) | 2007-11-01 | 2007-11-01 | Safety closing device of lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200301305U CN201109674Y (en) | 2007-11-01 | 2007-11-01 | Safety closing device of lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109674Y true CN201109674Y (en) | 2008-09-03 |
Family
ID=39894200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200301305U Expired - Fee Related CN201109674Y (en) | 2007-11-01 | 2007-11-01 | Safety closing device of lifting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201109674Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691827B (en) * | 2009-04-08 | 2012-03-14 | 太原理工大学 | Safe mine lifter cage door locking device |
-
2007
- 2007-11-01 CN CNU2007200301305U patent/CN201109674Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691827B (en) * | 2009-04-08 | 2012-03-14 | 太原理工大学 | Safe mine lifter cage door locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20091201 |