CN2391863Y - Hanging-proof and automatic stop type protection device for construction hoist - Google Patents
Hanging-proof and automatic stop type protection device for construction hoist Download PDFInfo
- Publication number
- CN2391863Y CN2391863Y CN 99232279 CN99232279U CN2391863Y CN 2391863 Y CN2391863 Y CN 2391863Y CN 99232279 CN99232279 CN 99232279 CN 99232279 U CN99232279 U CN 99232279U CN 2391863 Y CN2391863 Y CN 2391863Y
- Authority
- CN
- China
- Prior art keywords
- weight limit
- freight weight
- guide rod
- hanging
- protection 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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Abstract
The utility model relates to a protecting device used for load limitation in construction hoists, namely, a hanging-proof and automatic stop type protection device for construction hoists. The utility model comprises a guide track, a base for a winding engine, and a winding drum, wherein, the guide track is arranged on a hoisting shelf, and the winding drum is arranged on the base for a winding engine. The utility model is characterized in that the lower part of the base for a winding engine is provided with a weight limiting movable plate; one end of the weight limiting movable plate is fixed on the guide track, and the other end is provided with a weight limiting guide rod which is provided with a weight limiting spring; the upper part of the weight limiting guide rod is provided with a weight limiting switch. The utility model has the advantages of reasonable structural design, simple structure, automatically controlled load capacity, convenient operation, and effective avoidance of the occurrence of accidents of machine destruction and crash, being an indispensable safety protecting device on hoists.
Description
The utility model relates to a kind of fender guard that is used for the building hoist limit for tonnage, the anti-automatic shutdown protection device of hanging of the lifting gig of promptly constructing.
Winch is because of overload operation or stressed excessive usually occurring on the existing building hoist, and winch is shut down, and causes steel rope to break and causes cage to plunk down, or the fatal accident of burn-down of electric motor, gives to produce and life brings great loss.
The utility model is at existing problems, but its purpose is to provide a kind of anti-automatic shutdown protection device of hanging of construction lifting gig of freight weight limit.
The utility model is owing to a freight weight limit device is set in the bottom of winch; this freight weight limit device utilizes the elastic force of spring to regulate guide rod and weighs the weight of hanging indigo plant; the user can be arranged on certain certain value with hanging blue weight as required; the compressed value of regulating spring is at certain certain value; when hanging basket weight surpasses definite value; balance is destroyed; elastic force discharges; freight weight limit portable plate one end is upturned, and jack-up starts the freight weight limit switch, makes it automatic power failure; thereby reach the freight weight limit protective effect; prevented from effectively to break because of the steel rope that excess weight brings, that causes ruins machine or casualty accident, reaches purpose of safe operation.
The utility model reasonable in design, simple in structure, energy automatic guidance load capacity, and easy to operate, the generation of having avoided ruining machine, falling accident effectively is a requisite safety guard on a kind of elevator.
Fig. 1 is integral structure figure of the present utility model.
Fig. 2 is from A-A direction sectional structure chart among the utility model Fig. 1.
1-2 is described in detail utility model below in conjunction with accompanying drawing.
The utility model comprises guide rail (3), winch base (4) that is located on the crane (15) and the elevator cylinder (10) which is provided with, be provided with a freight weight limit portable plate (1) in the bottom of winch base (4), one end of this freight weight limit portable plate (1) is fixed in that guide rail (3) is gone up, the other end is provided with a freight weight limit guide rod (8) that has a freight weight limit spring (12), is provided with a freight weight limit switch (6) on the top of freight weight limit guide rod (8).Freight weight limit guide rod (8) bottom is wound with freight weight limit spring (12), and freight weight limit guide rod (8) top is fixed on the freight weight limit portable plate (1) by bolt (16), and the bolt head of its bolt (16) is stuck in the trough (5) on the winch base (4).Freight weight limit switch (6) is conventional electric-controlled switch, generally can adopt commercially available electric-controlled switchs such as CH-0016463-97 all can, its this freight weight limit switch (6) top hangs on the crane (15) by steel rope (2), laterally interleaved bits is apart from being 3-15MM between the freight weight limit loam cake (7) of this freight weight limit switch (6) and the freight weight limit guide rod (8), and freight weight limit switch (6) is 5-15MM with the vertical interleaved bits distance of freight weight limit guide rod (8).Among the figure: (9)-crane rope, (11)-spring fixed seat, (13)-motor, (14)-base, (17)-bolt, (18)-bolt.When winch promotes the overload situation, perhaps the inside and outside weight of cage tilts to make itself and cage connect extension outward, so that when surpassing rated load, the freight weight limit spring just is compressed, promptly heavy spring is regulated guide rod and is moved on also with freight weight limit switch loam cake, circuit is disconnected, and electric winch shuts down, and avoids accident.
Claims (3)
1, the anti-automatic shutdown protection device of hanging of a kind of construction lifting gig; it comprises guide rail (3), winch base (4) that is located on the crane (15) and the elevator cylinder (10) which is provided with; it is characterized in that: be provided with a freight weight limit portable plate (1) in the bottom of winch base (4); one end of this freight weight limit portable plate (1) is fixed in that guide rail (3) is gone up, the other end is provided with a freight weight limit guide rod (8) that has a freight weight limit spring (12), is provided with a freight weight limit switch (6) on the top of freight weight limit guide rod (8).
2, by the anti-automatic shutdown protection device of hanging of the described construction lifting of claim 1 gig; it is characterized in that: freight weight limit guide rod (8) bottom is wound with freight weight limit spring (12); freight weight limit guide rod (8) top is fixed on the freight weight limit portable plate (1) by bolt (16), and the bolt head of its bolt (16) is stuck in the trough (5) on the winch base (4).
3, by claim 1 or the anti-automatic shutdown protection device of hanging of 2 described construction lifting gigs; it is characterized in that: freight weight limit switch (6) is conventional electric control switch; its this freight weight limit switch (6) top hangs on the crane (15) by steel rope (2); laterally interleaved bits is apart from being 3-15MM between the freight weight limit loam cake (7) of this freight weight limit switch (6) and the freight weight limit guide rod (8), and freight weight limit switch (6) is 5-15MM with the vertical interleaved bits distance of freight weight limit guide rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232279 CN2391863Y (en) | 1999-08-04 | 1999-08-04 | Hanging-proof and automatic stop type protection device for construction hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232279 CN2391863Y (en) | 1999-08-04 | 1999-08-04 | Hanging-proof and automatic stop type protection device for construction hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391863Y true CN2391863Y (en) | 2000-08-16 |
Family
ID=34020994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232279 Expired - Fee Related CN2391863Y (en) | 1999-08-04 | 1999-08-04 | Hanging-proof and automatic stop type protection device for construction hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391863Y (en) |
-
1999
- 1999-08-04 CN CN 99232279 patent/CN2391863Y/en not_active Expired - Fee Related
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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 |