CN204917732U - Hoist safety arrangement - Google Patents
Hoist safety arrangement Download PDFInfo
- Publication number
- CN204917732U CN204917732U CN201520666258.5U CN201520666258U CN204917732U CN 204917732 U CN204917732 U CN 204917732U CN 201520666258 U CN201520666258 U CN 201520666258U CN 204917732 U CN204917732 U CN 204917732U
- Authority
- CN
- China
- Prior art keywords
- triggering block
- pull bar
- travel switch
- crane
- protective device
- 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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- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The utility model relates to a crane safety device, it includes the support, support upper portion right side be connected with the locating lever, the right side of support be provided with guide pulley, guide pulley on be connected with the lifting rope, the right -hand member downside of locating lever be connected with the pendulum rod, the lower extreme of pendulum rod be connected with the arc pole, the lower extreme left side of arc pole be connected with the pull rod, the right part of pull rod be connected with trigger block, trigger block's upper and lower both sides all be provided with travel switch, the right part of pull rod be provided with the return spring, the left side of pull rod connect on the hoist body of the tower, in a word the utility model has the advantages of simple structure, the reaction is sensitive, the security is high, convenient to use is swift.
Description
Technical field
The utility model belongs to weight-lifting equipment safety device technical field, is specifically related to a kind of crane safety protector.
Background technology
Lifting equipment is because of huge structure, mechanism is complicated, load is changeable, it is more that the reasons such as running space is wide determine its risk factors, the probability had an accident is higher, once have an accident, just heavy economic losses and personal casualty can be caused, strengthen the safety management of elevator machinery, it is made to run safely and effectively imperative, at this moment just various safety device must be applied, safety guard refers under abnormal condition, can guarantee that crane safety runs and prevents freeing of safety misadventure, up to the present, the safety device that hoisting crane is commonly used the most has energy disperser, anti-deflection indicating device, all kinds of limiting device, crane torque limiter etc., wherein limiting device is the one of outbalance in crane safety protective device, particularly even more important to the overload protection of derricking gear, existing overload protection device is that mechanical overload protector is installed in crane arm rear end mostly, pre-set volume carries numerical value, then in lifting process, volume is exceeded when carrying, protector starts and carries out weight limit for tonnage, there is many drawbacks in this protector: the numerical value preset is not easy to determine, or time concrete operations time worker be in carelessness and do not carry out overload set, at this moment potential operation will be brought dangerous.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of structure simple, be quick on the draw, crane safety protector that safety is high, convenient to use.
The purpose of this utility model is achieved in that a kind of crane safety protective device, it comprises support, radius stay is connected with on the right side of described frame upper, the right side of described support is provided with leading sheave, described leading sheave is connected with lifting rope, fork is connected with on the downside of the right-hand member of described radius stay, the lower end of described fork is connected with bow, pull bar is connected with on the left of the lower end of described bow, the right part of described pull bar is connected with triggering block, the both sides up and down of described triggering block are provided with travel switch, the right part of described pull bar is provided with return spring, the left side of described pull bar is connected to it crane tower.
Described bow and fork are formed in one structure.
Described triggering block is pyramidal structure.
The quantity of described travel switch is four.
The quantity of described triggering block is two.
The both sides up and down of described each triggering block are respectively arranged with a travel switch.
The beneficial effects of the utility model: fork lower end is bow, enhance the being quick on the draw property of lever, triggering block and travel switch are provided with two covers respectively, the a set of outlet fault of lifting and when can not run, another set ofly also can trigger and run, improve security and stability during use, return spring improves integrally-built reusability, in a word the utility model have structure simple, be quick on the draw, advantage that safety is high, convenient to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of crane safety protector of the utility model.
In figure: 1, hoisting crane tower body 2, return spring 3, pull bar 4, travel switch 5, triggering block 6, bow 7, fork 8, leading sheave 9, radius stay 10, lifting rope 11, support.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1
As shown in Figure 1, a kind of crane safety protective device, it comprises support 11, described support 11 upper right is connected with location 9 bar, the right side of described support 11 is provided with leading sheave 8, described leading sheave 8 is connected with lifting rope 10, fork 7 is connected with on the downside of the right-hand member of described location 9 bar, the lower end of described fork 7 is connected with bow 6, pull bar 3 is connected with on the left of the lower end of described bow 6, the right part of described pull bar 3 is connected with triggering block 5, the both sides up and down of described triggering block 5 are provided with travel switch 4, the right part of described pull bar 3 is provided with return spring 2, the left side of described pull bar 3 is connected on hoisting crane tower body 1.
The utility model is when implementing, when the goods that lifting appliance lifts by crane exceed volume carry time, the power of overload will be transmitted on leading sheave by lifting rope, leading sheave rotates under the effect of the power passed to, at this moment leading sheave drives fork and bow to rotate, and then drive pull bar to move, pull bar drives triggering block to move, and then triggering travel switch, travel switch is connected with hoisting crane general supply, and then closedown general supply, thus reach the effect of protection hoisting crane, triggering block and travel switch have been respectively arranged with two covers, improve the security and stability of single unit system, to have structure simple for the utility model in a word, be quick on the draw, safety is high, advantage convenient to use.
Embodiment 2
As shown in Figure 1, a kind of crane safety protective device, it comprises support 11, described support 11 upper right is connected with location 9 bar, the right side of described support 11 is provided with leading sheave 8, described leading sheave 8 is connected with lifting rope 10, fork 7 is connected with on the downside of the right-hand member of described location 9 bar, the lower end of described fork 7 is connected with bow 6, pull bar 3 is connected with on the left of the lower end of described bow 6, the right part of described pull bar 3 is connected with triggering block 5, the both sides up and down of described triggering block 5 are provided with travel switch 4, the right part of described pull bar 3 is provided with return spring 2, the left side of described pull bar 3 is connected on hoisting crane tower body 1.
Described bow 6 and fork 7 are formed in one structure, described triggering block 5 is pyramidal structure, the quantity of described travel switch 4 is four, and the quantity of described triggering block 5 is two, and the both sides up and down of described each triggering block 5 are respectively arranged with a travel switch 4.
The utility model is when implementing, when the goods that lifting appliance lifts by crane exceed volume carry time, the power of overload will be transmitted on leading sheave by lifting rope, leading sheave rotates under the effect of the power passed to, at this moment leading sheave drives fork and bow to rotate, and then drive pull bar to move, pull bar drives triggering block to move, and then triggering travel switch, travel switch is connected with hoisting crane general supply, and then closedown general supply, thus reach the effect of protection hoisting crane, triggering block and travel switch have been respectively arranged with two covers, improve the security and stability of single unit system, the structure of fork lower end is arcuate structure, this just produces larger application force than straight-bar, improve the sensitieness of reaction, to have structure simple for the utility model in a word, be quick on the draw, safety is high, advantage convenient to use.
Claims (6)
1. a crane safety protective device, it comprises support, it is characterized in that: on the right side of described frame upper, be connected with radius stay, the right side of described support is provided with leading sheave, described leading sheave is connected with lifting rope, fork is connected with on the downside of the right-hand member of described radius stay, the lower end of described fork is connected with bow, pull bar is connected with on the left of the lower end of described bow, the right part of described pull bar is connected with triggering block, the both sides up and down of described triggering block are provided with travel switch, the right part of described pull bar is provided with return spring, the left side of described pull bar is connected to it crane tower.
2. a kind of crane safety protective device according to claim 1, is characterized in that: described bow and fork are formed in one structure.
3. a kind of crane safety protective device according to claim 1, is characterized in that: described triggering block is pyramidal structure.
4. a kind of crane safety protective device according to claim 1, is characterized in that: the quantity of described travel switch is four.
5. a kind of crane safety protective device according to claim 1, is characterized in that: the quantity of described triggering block is two.
6. a kind of crane safety protective device according to claim 1 or 4 or 5, is characterized in that: the both sides up and down of described each triggering block are respectively arranged with a travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520666258.5U CN204917732U (en) | 2015-08-31 | 2015-08-31 | Hoist safety arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520666258.5U CN204917732U (en) | 2015-08-31 | 2015-08-31 | Hoist safety arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204917732U true CN204917732U (en) | 2015-12-30 |
Family
ID=54966880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520666258.5U Expired - Fee Related CN204917732U (en) | 2015-08-31 | 2015-08-31 | Hoist safety arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204917732U (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
- 2015-08-31 CN CN201520666258.5U patent/CN204917732U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180831 |