CN2633851Y - Crane lifting level limitnig device with anti-drop block - Google Patents
Crane lifting level limitnig device with anti-drop block Download PDFInfo
- Publication number
- CN2633851Y CN2633851Y CN 03231317 CN03231317U CN2633851Y CN 2633851 Y CN2633851 Y CN 2633851Y CN 03231317 CN03231317 CN 03231317 CN 03231317 U CN03231317 U CN 03231317U CN 2633851 Y CN2633851 Y CN 2633851Y
- Authority
- CN
- China
- Prior art keywords
- crane
- bar
- limiting device
- jacking
- flexible member
- 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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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model discloses a crane lifting level limiting device with anti-drop block of simple structure, convenient maintenance and reliable lifting control and limiting and capable of preventing falling of high-altitude jacking-up stop rod. The utility model comprises a jacking-up stop rod, a limiter, an anti-drop stop and a flexible element, wherein, the limiter is fixed on a fixing rack, while the jacking-up stop rod with an anti-drop block is arranged inside the long sleeve of the fixing rack; one end of the flexible element is connected with the push rod of the limiter, while the other end is connected with the anti-drop block. When the jacking-up stop rod droops naturally and the flexible element is in tension, crane can complete lifting task; while the weight of the jacking-up stop rod bears on the sling of crane and the flexible element is loosening, the push rod of the limiter is reset, thereby crane stopping lifting. The utility model is suitable for crane used at dock and harbor.
Description
The utility model relates to a kind of crane hoisting inhibiting device, particularly a kind of crane hoisting inhibiting device with anti-fall block.
In known technology, a kind of inhibiting device that hoists that hoisting crane uses stops bar by the top and limiting device is formed, and during near terminal point, the push rod that bar promotes limiting device is stopped on the top, makes the control loop that hoists present off-state, can't continue rising at crane hoisting.The top of this inhibiting device stops being connected by steel rope between bar and the limiting device, and steel rope is installed in the long sleeve pipe, easily wearing and tearing, be difficult to examination and maintenance simultaneously, in case wear and rupture can cause the top to stop bar high-altitude falling accident, there is potential safety hazard in this inhibiting device that hoists.In recent years, also there is the method that opto-electronic pickup adopt to be installed to limit the lifting altitude of hoisting crane, but these methods complex structure not only, the requirement height of service personnel, and erected cost is big, is not easy in the abominable harbour wide popularization and application of operating environment.
In order to overcome the deficiencies in the prior art, it is a kind of simple in structure that the utility model provides, spacing reliable, easy to use, can prevent to push up to stop the crane hoisting inhibiting device with anti-fall block that falls in the bar high-altitude.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model inhibiting device that hoists comprises that the top stops bar, limiting device and flexible member.Limiting device is fixed on the fixed mount, stops bar with the top of anti-fall link stopper and is installed in the long cover of fixed mount, and an end of flexible member and the push rod of limiting device link to each other, and the other end links to each other with anti-fall link stopper.It is sagging naturally that bar is stopped on the top, and flexible member is in tension state, and the push rod of limiting device is rotated by gravity; Push up the weight of stopping bar and born by crane hanger, flexible member is loose, and the push rod of limiting device resets.
Flexible member is made with steel rope or chain.The top is stopped the lower end of bar and is made hemispherical.
The beneficial effects of the utility model are: simple in structure, easy to maintenance, the control crane hoisting is spacing reliable; Can prevent to push up the generation that stops bar high-altitude falling accident.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
Bar 3 anti-fall link stopper 4 long cover 5 flexible members 6 fixed mounts 7 suspenders 8 are stopped on limiting device 1 push rod 2 tops in the drawings
In the drawings, limiting device 1 is installed on the fixed mount 7 of hoisting crane, long cover 5 is fixed on 7 li of fixed mounts, bar 3 is stopped on the top made from round steel can be in 5 li slips of long cover, the top is stopped the upper end of bar 3 and is welded anti-fall link stopper 4, one end of flexible member 6 links to each other with the push rod 2 of limiting device 1, and the other end links to each other with anti-fall link stopper 4.
When hoisting crane hoisted operation, it is sagging naturally that bar 3 is stopped on the top, and flexible member 6 is in tension state, and the push rod 2 of limiting device 1 is stressed, and the limiting device that is connected in the circuit is kept closed hoisting circuit, hoisting crane continuation hoisting operation; When crane hoisting operation during near terminal, suspender 8 is run into the top and is stopped bar 3, and flexible member 6 is loose, the push rod 2 of limiting device 1 resets, make the limiting device that is connected in the circuit 1 that hoisting circuit is presented off-state, hoisting crane can't continue to hoist, with the safety of the operation of guaranteeing to hoist.
Flexible member 6 usefulness steel ropes or chain are made, and outside long cover 5, are convenient to check.In case fracture by fatigue, anti-fall block 4 prevent that the top from stopping bar 3 and falling for 5 li from long cover in the high-altitude.The lower end that bar 3 is stopped on the top is made hemispherical, and being beneficial to the top, to stop the center of bar 3 stressed.
Claims (3)
1. crane hoisting inhibiting device with anti-fall block, comprise pushing up and stop bar, limiting device and flexible member, it is characterized in that, limiting device is fixed on the fixed mount, stopping bar with the top of anti-fall link stopper is installed in the long cover of fixed mount, one end of flexible member and the push rod of limiting device link to each other, the other end links to each other with anti-fall link stopper, it is sagging naturally that bar is stopped on the top, flexible member is in tension state, and the push rod of limiting device is rotated by gravity, and the top is stopped the weight of bar and born by crane hanger, flexible member is loose, and the push rod of limiting device resets.
2. a kind of crane hoisting inhibiting device with anti-fall block according to claim 1 is characterized in that described flexible member is made with steel rope or chain.
3. a kind of crane hoisting inhibiting device with anti-fall block according to claim 1 is characterized in that described top is stopped the lower end of bar and made hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231317 CN2633851Y (en) | 2003-05-20 | 2003-05-20 | Crane lifting level limitnig device with anti-drop block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231317 CN2633851Y (en) | 2003-05-20 | 2003-05-20 | Crane lifting level limitnig device with anti-drop block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2633851Y true CN2633851Y (en) | 2004-08-18 |
Family
ID=34291174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231317 Expired - Fee Related CN2633851Y (en) | 2003-05-20 | 2003-05-20 | Crane lifting level limitnig device with anti-drop block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2633851Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040163A (en) * | 2009-10-16 | 2011-05-04 | 利勃海尔爱茵根有限公司 | Hoisting limit switch and lifting device |
-
2003
- 2003-05-20 CN CN 03231317 patent/CN2633851Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040163A (en) * | 2009-10-16 | 2011-05-04 | 利勃海尔爱茵根有限公司 | Hoisting limit switch and lifting device |
| CN102040163B (en) * | 2009-10-16 | 2015-03-25 | 利勃海尔爱茵根有限公司 | Hoisting limit switch and lifting 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 |