CN204778518U - Hoist lifts by crane operation lift safety arrangement - Google Patents
Hoist lifts by crane operation lift safety arrangement Download PDFInfo
- Publication number
- CN204778518U CN204778518U CN201520345732.4U CN201520345732U CN204778518U CN 204778518 U CN204778518 U CN 204778518U CN 201520345732 U CN201520345732 U CN 201520345732U CN 204778518 U CN204778518 U CN 204778518U
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- CN
- China
- Prior art keywords
- lever
- switch
- turbine
- lance
- spring
- 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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Abstract
The utility model relates to a hoist lifts by crane operation lift safety arrangement, its technical scheme is: the inside of safety protection bearing is equipped with the bracing piece, and the centre of bracing piece is equipped with the spring, and bolt horizontally connect lever is passed through at the top of bracing piece, lever one end be equipped with the lance, the other end of lever is fixed through the pivot, the intermediate junction go -between of lever, the go -between on connect the pulley, be equipped with wire rope on the pulley, the sub -unit connection movable switch of lever, movable switch is located the lower part of lance, movable switch include worm, turbine, fixed disk, direction switch, the worm is fixed in the bottom of lever, pivort fixation is passed through rather than the complex turbine in one side of worm, the turbine on through the fixed direction switch of fixed disk, the beneficial effects of the utility model are that: the utility model provides an overload protection safety device when load exceedes the rated value, has made to rise the action and can not realize to avoid overloading.
Description
Technical field
The utility model relates to a kind of building crane fender guard, particularly a kind of crane loading operation elevating safety fender guard.
Background technology
Tower crane period of service is long, seriously corroded, deformation, load-carrying capacity declines, and in use reasonably can not reduce crane output, also can cause overload, there is huge potential safety hazard after overload, easily cause occurring contingency, impact is kept the safety in production normally.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of crane loading operation elevating safety fender guard.
Its technical scheme is: comprise safety guard-safeguard supporting base, strut bar, spring, lever, coupling link, pulley, steel rope, movable switch, rotating shaft, lance, the inside of described safety guard-safeguard supporting base is provided with strut bar, the centre of strut bar is provided with spring, the top of strut bar is by bolt level connection joint lever, described lever one end is provided with lance, the other end of lever is fixed by rotating shaft, coupling link is connected in the middle of lever, described coupling link connects pulley, pulley is provided with steel rope, the bottom of described lever connects movable switch, movable switch is positioned at the bottom of lance, described movable switch comprises worm screw, turbine, reaction plate, direction switch, worm screw is fixed on the bottom of lever, the turbine that the side of worm screw is fixedly mated by bearing pin, described turbine fixes direction switch by reaction plate.
The bottom of above-mentioned spring is provided with alarm mechanism, and described alarm mechanism comprises touching bar, micro-switch, annunciator, and the bottom of spring is provided with touching bar, and the bottom of described touching bar is provided with micro-switch, and micro-switch connects annunciator.
The beneficial effects of the utility model are: use simple effects good, provide a kind of overload protection safety device, and when load overrate, the action that makes to hoist can not realize, thus avoids overload, and the contingency that avoiding overloads causes, improves the safety of production.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of movable switch;
Accompanying drawing 3 is structural representations of alarm mechanism;
In upper figure: safety guard-safeguard supporting base 1, strut bar 2, spring 3, lever 4, coupling link, pulley 6, steel rope 7, movable switch 8, rotating shaft 9, lance 10, alarm mechanism 11; Worm screw 8.1, turbine 8.2, reaction plate 8.3, direction switch 8.4; Touching bar 11.1, micro-switch 11.2, annunciator 11.3.
Detailed description of the invention
1-3 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises safety guard-safeguard supporting base 1, strut bar 2, spring 3, lever 4, coupling link, pulley 6, steel rope 7, movable switch 8, rotating shaft 9, lance 10, the inside of described safety guard-safeguard supporting base 1 is provided with strut bar 2, the centre of strut bar 2 is provided with spring 3, the top of strut bar 2 is by bolt level connection joint lever 4, described lever 4 one end is provided with lance 10, the other end of lever 4 is fixed by rotating shaft 9, coupling link 5 is connected in the middle of lever 4, described coupling link 5 connects pulley 6, pulley 6 is provided with steel rope 7, the bottom of described lever 4 connects movable switch 8, movable switch 8 is positioned at the bottom of lance 10, described movable switch 8 comprises worm screw 8.1, turbine 8.2, reaction plate 8.3, direction switch 8.4, worm screw 8.1 is fixed on the bottom of lever 4, the turbine 8.2 that the side of worm screw 8.1 is fixedly mated by bearing pin, described turbine 8.2 fixes direction switch 8.4 by reaction plate 8.3.
The bottom of described spring 3 is provided with alarm mechanism 11, described alarm mechanism 11 comprises touching bar 11.1, micro-switch 11.2, annunciator 11.3, the bottom of spring 3 is provided with touching bar 11.1, the bottom of described touching bar 11.1 is provided with micro-switch 11.2, and micro-switch 11.2 connects annunciator 11.3.
Principle of work: when overloading, lever 4 sinks, worm screw 8.1 bottom lever 4 moves downward, and worm screw 8.1 moves and drives turbine 8.2 to rotate, and the direction switch 8.4 on turbine 8.2 rotates, realize the disconnection of direction switch 8.4, cut off the propulsion source of hoisting crane, control hoisting crane and stop running, spring 3 moves downward encounters touching bar 11.1, the action of touching bar 11.1 realizes micro-switch 11.1 and closes, and annunciator 11.3 is reported to the police.
Claims (2)
1. a crane loading operation elevating safety fender guard, it is characterized in that: comprise safety guard-safeguard supporting base, strut bar, spring, lever, coupling link, pulley, steel rope, movable switch, rotating shaft, lance, the inside of safety guard-safeguard supporting base is provided with strut bar, the centre of strut bar is provided with spring, the top of strut bar is by bolt level connection joint lever, described lever one end is provided with lance, the other end of lever is fixed by rotating shaft, coupling link is connected in the middle of lever, described coupling link connects pulley, pulley is provided with steel rope, the bottom of described lever connects movable switch, movable switch is positioned at the bottom of lance, described movable switch comprises worm screw, turbine, reaction plate, direction switch, worm screw is fixed on the bottom of lever, the turbine that the side of worm screw is fixedly mated by bearing pin, described turbine fixes direction switch by reaction plate.
2. crane loading operation elevating safety fender guard according to claim 1; it is characterized in that: the bottom of described spring is provided with alarm mechanism; described alarm mechanism comprises touching bar, micro-switch, annunciator; the bottom of spring is provided with touching bar; the bottom of described touching bar is provided with micro-switch, and micro-switch connects annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345732.4U CN204778518U (en) | 2015-05-26 | 2015-05-26 | Hoist lifts by crane operation lift safety arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345732.4U CN204778518U (en) | 2015-05-26 | 2015-05-26 | Hoist lifts by crane operation lift safety arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778518U true CN204778518U (en) | 2015-11-18 |
Family
ID=54518610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345732.4U Expired - Fee Related CN204778518U (en) | 2015-05-26 | 2015-05-26 | Hoist lifts by crane operation lift safety arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383441A (en) * | 2023-12-07 | 2024-01-12 | 山西机电职业技术学院 | Overload self-protection crane |
-
2015
- 2015-05-26 CN CN201520345732.4U patent/CN204778518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383441A (en) * | 2023-12-07 | 2024-01-12 | 山西机电职业技术学院 | Overload self-protection crane |
| CN117383441B (en) * | 2023-12-07 | 2024-02-13 | 山西机电职业技术学院 | Overload self-protection crane |
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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 |
Granted publication date: 20151118 Termination date: 20160526 |