CN2481689Y - Tower crane cross operation warning device - Google Patents
Tower crane cross operation warning device Download PDFInfo
- Publication number
- CN2481689Y CN2481689Y CN 01230212 CN01230212U CN2481689Y CN 2481689 Y CN2481689 Y CN 2481689Y CN 01230212 CN01230212 CN 01230212 CN 01230212 U CN01230212 U CN 01230212U CN 2481689 Y CN2481689 Y CN 2481689Y
- Authority
- CN
- China
- Prior art keywords
- warning
- limit switch
- tower crane
- latching relay
- right sides
- 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 relates to a tower crane cross operation warning device, wherein a left and a right link stoppers are arranged on an upper gyrus; a left and a right limit switches are arranged on a lower gyrus correspondingly; a warning control loop is formed by the left and right limit switches in a parallel connection, a on-delay self-latching relay, a control switch and a control power-supply in series; a warning main loop is formed by a warning power-supply, a warning switch, a control contact of the on-delay self-latching relay and an annunciator in series. The utility model provides a warning device which can produce a warning sound to remind drivers to avoid collision accidents when a crane enters into a cross operation zone for tower group operation.
Description
The utility model relates to a kind of telltale, specifically a kind of tower crane cross-operation telltale.
In engineering construction, tower crane often needs group tower operation.; there is following shortcoming in existing tower crane when the operation of group's tower: 1, do not have telltale when tower crane enters the cross-operation zone each other; operate by human eye vision; on the one hand, human eye vision has a reaction time, on the other hand; the swing type mechanism of tower crane is in operational process; do not accomplish that at all moment stops, thereby exist because of reasons such as misoperation cause group tower and bump against, even group's tower fatal crass's hidden danger.2, during night work, can't see target clearly, operation can't prevent group generation of tower collision accident by human eye vision at all.
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, satisfies the needs of construction safety in group's tower operation process, proposes can send when a kind of tower crane enters the cross-operation zone telltale of the sound of warning.
Realize the technical scheme of above-mentioned purpose: tower crane cross-operation telltale, comprise revolution and turning down on the tower crane, on turn round left and right collision block be set, correspondence is provided with left and right sides limit switch in the turning down, the output of left and right sides limit switch circuit taking alarm.
Warning circuit is made up of the warn control loop and the major loop of warning, connect with on-delay latching relay, master cock, control power supply by the left and right sides limit switch after the parallel connection and to constitute the control loop of warning, the time-delay self-lock switch of on-delay latching relay is in parallel with left and right sides limit switch, constitutes the major loop of warning by the control contact of the power supply of warning, the switch of warning, on-delay latching relay and annunciator series connection.
On turn round the right limit switch that is provided with in the left collision block that is provided with and the turning down for shifting to install, on turn round the left limit switch that is provided with in the right collision block of setting and the turning down for shifting to install.
Adopt technique scheme, its beneficial technical effects is: 1, by being provided with in the last turn in left and right sides collision block and the turning down limit switch is set, when tower crane enters the cross-operation zone, the limit switch closure is connected the control loop of warning, through energising of on-delay latching relay and self-locking, electricity time-delay latching relay control contact closure, control the major loop energising of warning, send the signal of warning by annunciator and remind the driver to note, can avoid the generation of collision accident.2, the utility model is simple in structure, ingenious, and left and right sides collision block and limit-switch positions can be adjusted fixing according to the actual job area size flexibly, and Installation and Debugging are convenient and swift, are the extremely strong tower crane cross-operation telltales of a kind of practicality.
Below by embodiment in detail, and its structure is described in detail in conjunction with the accompanying drawings:
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of control loop circuit diagram of warning of the present utility model.
Fig. 3 is a kind of main loop circuit figure that warns of the present utility model.
Embodiment: in conjunction with Fig. 1～Fig. 3, a kind of tower crane cross-operation telltale, comprise and turn round 2 on the tower crane, turning down 5, left side collision block 1, right collision block 3, left limit switch 6 (SK1), right limit switch 4 (SK2), on-delay latching relay KM and annunciator BJ, left and right sides collision block (1,3) be fixed in the revolution 2, correspondence is provided with left and right sides limit switch (6 in the turning down 5,4), the right limit switch 4 that is provided with in left collision block 1 that is provided with in the last revolution 2 and the turning down 5 is for shifting to install, the left limit switch 6 that is provided with in right collision block that is provided with in the last revolution 2 and the turning down is for shifting to install, last turning down (2,5) support by bearing 7, left and right sides limit switch (6,4) output circuit taking alarm, warning circuit is made up of the warn control loop and the major loop of warning, by the left and right sides limit switch (6 after the parallel connection, 4) with on-delay latching relay KM, master cock K1, control power supply V series connection constitutes the control loop of warning, the time-delay self-lock switch Km1 of on-delay latching relay KM and left and right sides limit switch (6,4) parallel connection is by the power supply E that warns, the K switch 2 of warning, the control contact Km2 of on-delay latching relay KM and annunciator BJ series connection constitute the major loop of warning.
Working process: the master cock of the closing K1 and the K switch 2 of warning, be in readiness, when tower crane entered the cross-operation zone from the left side, the left collision block 1 that is fixed in the revolution 2 hit 6 actions of left limit switch, makes on-delay latching relay KM energising, and by time-delay self-lock switch Km1 self-locking, at this moment, the control contact Km2 closure of on-delay latching relay KM, the major loop of warning energising, annunciator BJ sends alarm sound, reminds the driver to avoid the generation of collision accident.
When tower crane entered the cross-operation zone from the right, fixing right collision block 3 in the last turn hit 4 actions of right limit switch, other working process the same (being omitted).
The alarm sound that annunciator BJ sends can be provided with different speech chips as required or select different Music Clips, also can be various forms of police whistle sounds.
For the walking tower crane, can locate to set up limit switch to the intersection region in big garage, this limit switch is connected in the control loop, makes tower crane be in the warning armed state.
Claims (3)
1, tower crane cross-operation telltale comprises on the tower crane revolution and turning down, it is characterized in that: on turn round left and right collision block be set, correspondence is provided with left and right sides limit switch in the turning down, the output of left and right sides limit switch circuit taking alarm.
2, according to the described tower crane cross-operation of claim 1 telltale, it is characterized in that: warning circuit is made up of the warn control loop and the major loop of warning, connect with on-delay latching relay, master cock, control power supply by the left and right sides limit switch after the parallel connection and to constitute the control loop of warning, the time-delay self-lock switch of on-delay latching relay is in parallel with left and right sides limit switch, constitutes the major loop of warning by the control contact of the power supply of warning, the switch of warning, on-delay latching relay and annunciator series connection.
3, according to the described tower crane cross-operation of claim 2 telltale, it is characterized in that: on turn round the right limit switch that is provided with in the left collision block that is provided with and the turning down for shifting to install, on turn round the left limit switch that is provided with in the right collision block of setting and the turning down for shifting to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230212 CN2481689Y (en) | 2001-07-05 | 2001-07-05 | Tower crane cross operation warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230212 CN2481689Y (en) | 2001-07-05 | 2001-07-05 | Tower crane cross operation warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2481689Y true CN2481689Y (en) | 2002-03-13 |
Family
ID=33644867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01230212 Expired - Fee Related CN2481689Y (en) | 2001-07-05 | 2001-07-05 | Tower crane cross operation warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2481689Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753059A (en) * | 2013-12-16 | 2014-04-30 | 柳州恒耀汽车零部件有限公司 | Manual mistake proofing workpiece |
| CN109850778A (en) * | 2019-01-07 | 2019-06-07 | 宝鸡市铁安工程机械有限公司 | A kind of track derrick car rotary limit device |
-
2001
- 2001-07-05 CN CN 01230212 patent/CN2481689Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753059A (en) * | 2013-12-16 | 2014-04-30 | 柳州恒耀汽车零部件有限公司 | Manual mistake proofing workpiece |
| CN109850778A (en) * | 2019-01-07 | 2019-06-07 | 宝鸡市铁安工程机械有限公司 | A kind of track derrick car rotary limit device |
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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 |