CN101376487B - High-lift operation hanging cradle overload protector - Google Patents
High-lift operation hanging cradle overload protector Download PDFInfo
- Publication number
- CN101376487B CN101376487B CN2008101554790A CN200810155479A CN101376487B CN 101376487 B CN101376487 B CN 101376487B CN 2008101554790 A CN2008101554790 A CN 2008101554790A CN 200810155479 A CN200810155479 A CN 200810155479A CN 101376487 B CN101376487 B CN 101376487B
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- China
- Prior art keywords
- guide pillar
- overload
- hanging basket
- travel switch
- gig
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- Expired - Fee Related
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- Emergency Lowering Means (AREA)
Abstract
The invention relates to an overload protection device of an overhead working hanging basket, which comprises an overload device and a travel switch. The overload device comprises an installing seat, a guide pole and a spring; a through-hole is opened on the installing seat; the guide pole drills through the through-hole from bottom to top and forms the sliding fit with the installing seat; the spring is arranged between the head of the guide pole and the bottom of the installing seat; and the travel switch is arranged on the upper part of the guide pole. After the overload protection device is installed on the overhead working hanging basket, the hanging basket can be effectively prevented from being in an overloaded state, thereby increasing the safety of the hanging basket; the overload device adopts the pure mechanical layout, and has stable performance and low cost.
Description
Technical field
The present invention relates to a kind of construction and decoration mechanical equipment, relate in particular to a kind of overload protection device of high-lift operation hanging cradle.
Background technology
High-lift operation hanging cradle belongs to one of high-risk product, and its safety is all users and the producer's final requirement, and overload device is exactly the important spare part that guarantees safety.Overload device mainly is that preventive device is exempted the various safety hazard that transship action and cause, finally reaches the purpose of protection operating personal personal safety.With regard to the use present situation of hanging basket, on-site, operator's self-awareness of safety is not very high; And be no lack of the blindly phenomenon of operation is arranged; Under the requirement of pursuing efficient and speed, surpass the rated load continued and use the situation of hanging basket to happen occasionally, this brings many potential safety hazards to hanging basket; Even the generation major accident, so limiting overload uses hanging basket to have very strong essentiality.After in each hanging basket, overload device being housed, can guaranteeing that hanging basket can not be in overload state by actv., thereby improve the safety of hanging basket.But for various reasons, such as price, technology, scheme or the like, the overload device of high-lift operation hanging cradle often is left in the basket at present, and this has just caused high-lift operation hanging cradle that the present situation of overload device generally is not set.Say that from security standpoint this has brought very big potential safety hazard to high-lift operation hanging cradle.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of high-lift operation hanging cradle overload protector is provided, this device can be used on the various high-lift operation hanging cradles, thereby guarantees the safe handling of hanging basket.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high-lift operation hanging cradle overload protector; Comprise overload device and travel switch; It is characterized in that: said overload device comprises mount pad, guide pillar and spring, has through hole on the mount pad, guide pillar pass from bottom to top this through hole and with the mount pad bearing fit; Between the head of guide pillar and the bottom of mount pad said spring is set, the top of guide pillar is provided with said travel switch;
Said guide pillar is provided with spacing ring washer;
Said overload device also links to each other with warning device;
During use, overload device must be used with corresponding hanging basket erecting frame; This hanging basket erecting frame is used for fixing the mount pad of overload device, and the hanging basket erecting frame is simultaneously through sliding sleeve and gig sliding block joint; Above gig, the mount pad of overload device is directly fixed on the hanging basket erecting frame through four bolts, and guide pillar is against the upper edge of gig, between guide pillar and gig, is designed with protective case; When state of nature, springs, guide pillar is descending, props up gig; During hanging basket work, under the action of gravity of workplatform, gig upwards slides, and it is simultaneously up to push away guide pillar; The antagonistic force of flat-bed gravity and spring will reach an equilibrium point, and at this moment guide pillar can stop to continue up, and this equilibrium point is exactly an institute design-calculated overload load; When the platform overload, guide pillar just can not stop in this equilibrium point position, will continue up; At this moment, it is up just to stop guide pillar to continue through travel switch, reaches the purpose of overload protection; Said travel switch is arranged on the top of guide pillar, in case guide pillar contacts and the contact of travel switch, travel switch works, and with cutting off up power supply, connects alarm bell simultaneously, alert.
Principle of work of the present invention is after being stressed through spring, amount of compression is converted into the variation of displacement, when displacement acquires a certain degree; With the travel switch that touches control, switch works, and cuts off line related; Hanging basket cannot be moved, to reach the purpose of protection.
Technique effect of the present invention is: after 1, the present invention is installed on the high-lift operation hanging cradle, can guarantees effectively that hanging basket can not be in overload state, thereby improve the safety of hanging basket; 2, overload device of the present invention is made up of mount pad, guide pillar and spring, adopts pure machine design, stable performance, and cost is low; 3, in order to protect when overload, guide pillar breaks limit switch, is designed with spacing back-up ring in the middle part of guide pillar, and there is certain stroke the contact of limit switch, and before stroke finished, limiting block enclosed effect, is against in advance on the mount pad, and the protection limit switch does not damage; 4, when overload device works, warning device sends lasting alarm, reminds the related personnel to take appropriate measures, with personnel's danger and the physical damage of avoiding causing owing to overload.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the front view of the overload device among the present invention;
Fig. 4 is the left view of Fig. 3.
The specific embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention.
Like Fig. 1 and shown in Figure 2, the present invention includes overload device 2 and travel switch 1.
Like Fig. 3 and shown in Figure 4, overload device 2 comprises mount pad 8, guide pillar 13 and spring 12.Have through hole on the mount pad 8, guide pillar 13 pass from bottom to top this through hole and with mount pad 8 bearing fits, between the head of guide pillar 13 and mount pad 8 bottoms said spring 12 is set.The top of guide pillar 13 is provided with said travel switch 1.Conductor rope cover 9 also is equipped with in the bottom of mount pad 8, and conductor rope cover 9 is by plain cushion 10 and back-up ring 11 location.
See Fig. 1, overload device 2 must be used with corresponding hanging basket erecting frame 6.This erecting frame 6 is the fixing mount pad 8 of overload device 2 not only, simultaneously with being connected of gig 4 neither be conventional the fixed type connection, but the connection that can let gig 4 fluctuate through sliding sleeve 5.Above gig 4, the mount pad 8 of overload device 2 is directly fixed on through four bolts and hangs on the blue erecting frame 6, and guide pillar 13 is against the upper edge of gig 4, is designed with protective case 3 certainly between the two.Like this, when state of nature, spring 12 works, and guide pillar 13 is descending, props up gig 4.During hanging basket work, under the action of gravity of workplatform, gig 4 upwards slides, and it is simultaneously up to push away guide pillar 13; The antagonistic force of flat-bed gravity and spring 12 will reach an equilibrium point, and at this moment guide pillar 13 can stop to continue up, and this equilibrium point is exactly an institute design-calculated overload load; When the platform overload, guide pillar 13 just can not stop in this equilibrium point position, and it will continue up; At this moment, just stop its continuation up, reach the purpose of overload protection through travel switch 1.Tip designs at guide pillar 13 has limitation travel switch 1, in case guide pillar 13 contacts and the contact of switch 1, switch 1 works, and with cutting off up power supply, connects alarm bell simultaneously, alert.
The gross load of personnel, equipment and material etc. on the overload device 2 detectable platforms is when gross load reaches 1.25 times gig 4 load or work before.In a single day overload device 2 works, and all motions that will stop except that descending are removed up to the overload load.Simultaneously, when overload device 2 worked, warning device sent lasting alarm, reminded the related personnel to take appropriate measures, with personnel's danger and the physical damage of avoiding causing owing to overload.
Claims (1)
1. high-lift operation hanging cradle overload protector; Comprise overload device (2) and travel switch (1); It is characterized in that: said overload device (2) comprises mount pad (8), guide pillar (13) and spring (12), and mount pad has through hole on (8), guide pillar (13) pass from bottom to top this through hole and with mount pad (8) bearing fit; Said spring (12) is set between the bottom of the head of guide pillar (13) and mount pad (8), and the top of guide pillar (13) is provided with said travel switch (1);
Said guide pillar (13) is provided with spacing ring washer;
Said overload device also links to each other with warning device;
During use, overload device (2) must be used with corresponding hanging basket erecting frame (6); This hanging basket erecting frame (6) is used for fixing the mount pad (8) of overload device (2), and hanging basket erecting frame (6) is simultaneously through sliding sleeve (5) and gig (4) sliding block joint; Top in gig (4), the mount pad (8) of overload device (2) is directly fixed on the hanging basket erecting frame (6) through four bolts, and guide pillar (13) is against the upper edge of gig (4), between guide pillar (13) and gig (4), is designed with protective case (3); When state of nature, spring (12) works, and guide pillar (13) is descending, props up gig (4); During hanging basket work, under the action of gravity of workplatform, gig (4) upwards slides; It is simultaneously up to push away guide pillar (13), and the antagonistic force of flat-bed gravity and spring (12) will reach an equilibrium point, and at this moment guide pillar (13) can stop to continue up; This equilibrium point is exactly institute's design-calculated overload load, and when the platform overload, guide pillar (13) just can not stop in this equilibrium point position; To continue up; At this moment, it is up just to stop guide pillar (13) to continue through travel switch (1), reaches the purpose of overload protection; Said travel switch (1) is arranged on the top of guide pillar (13), in case guide pillar (13) contacts and the contact of travel switch (1), travel switch (1) works, and with cutting off up power supply, connects alarm bell simultaneously, alert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101554790A CN101376487B (en) | 2008-10-06 | 2008-10-06 | High-lift operation hanging cradle overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101554790A CN101376487B (en) | 2008-10-06 | 2008-10-06 | High-lift operation hanging cradle overload protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101376487A CN101376487A (en) | 2009-03-04 |
| CN101376487B true CN101376487B (en) | 2012-05-23 |
Family
ID=40420234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101554790A Expired - Fee Related CN101376487B (en) | 2008-10-06 | 2008-10-06 | High-lift operation hanging cradle overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101376487B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894485A (en) * | 2018-06-28 | 2018-11-27 | 艾陌极智能装备（深圳）有限公司 | Intelligent aerial work basket weighing early warning system |
| CN112413052A (en) * | 2020-11-12 | 2021-02-26 | 罗正桥 | Gravity balance maintaining device for preventing high-altitude operation platform from inclining |
-
2008
- 2008-10-06 CN CN2008101554790A patent/CN101376487B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101376487A (en) | 2009-03-04 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120523 Termination date: 20141006 |
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| EXPY | Termination of patent right or utility model |