CN2270770Y - Falling-proof device for climbing scaffold - Google Patents
Falling-proof device for climbing scaffold Download PDFInfo
- Publication number
- CN2270770Y CN2270770Y CN 95219378 CN95219378U CN2270770Y CN 2270770 Y CN2270770 Y CN 2270770Y CN 95219378 CN95219378 CN 95219378 CN 95219378 U CN95219378 U CN 95219378U CN 2270770 Y CN2270770 Y CN 2270770Y
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- CN
- China
- Prior art keywords
- braking
- wedge
- supporting member
- lifting arm
- frame
- 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 - Lifetime
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Abstract
The utility model relates to a falling-proof device for a climbing scaffold, which is used in the construction of a high-rise building. A braking frame (2) is sheathed on the external side of a supporting piece (1). Both inner sides of the braking frame (2) are inclined planes (3). Two wedge-shaped gaps which are at an angle of alpha are formed from the inclined planes (3) and two outer lateral planes of the supporting piece (1). A braking column (4) which is connected with a lifting rod is arranged in each of the wedge-shaped gaps. The lifting rod is under the control of a steel cable. When the accident that the climbing scaffold falls down happens, the lifting rod can automatically plug the braking column into each of the wedge-shaped gaps to perform the friction self-locking braking function. Constructors' safety is effectively guaranteed.
Description
The utility model belongs to the realm of building construction, and it relates to a kind of anti-drop device of climbing scaffold.
In high-building construction, the investment of using climbing scaffold (abbreviation climbing frame) can save scaffold, raise the efficiency, but owing to do not prevent drop device reliably, when electric or mechanical breakdown occurring, climbing frame may cause major accident from high falling, domestic in recent years repeatedly generation.
The purpose of this utility model is to provide a kind of falling proof device, to avoid climbing frame from high falling.
The purpose of this utility model is achieved in that in the outside of supporting member (1) and is with a damper frame (2), the damper frame inboard is clinoplain (3), they and plane, supporting member (1) two outside form the wedge gap of α angle, a braking cylinder (4) is respectively arranged in the wedge gap, lifting arm (5) is equipped with at braking cylinder two ends, the lifting arm upper end is connected with weight (spring) cross bar (cam) mechanism, and mechanism's one end is controlled by wire rope.
Fig. 1 is a climbing frame anti-drop device overall diagram.
Fig. 2 is the anti-drop device structural representation.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is with weight-cross bar (cam) mechanism controls lifting arm
Mechanism.
Fig. 5 is spring-inclined-plane control lift pin mechanism.
Fig. 6 is another kind of spring control lift pin mechanism.
Below anti-drop device is described, supporting member (1) can be channel-section steel or i iron, and it firmly links by built-in fitting in the steel concrete and building.Be with a damper frame (2) in supporting member (1) outside, it is the part of climbing frame.Damper frame two inboards are clinoplain (3), respectively form the wedge gap of a protruding α angle with supporting member two outer side planes, braking cylinder (4) is equipped with at big end place, gap, the roll of its similar rolling mill of shape, lifting arm (5) is housed at the roll neck position, lifting arm (5) upper end is connected with hoisting mechanism, and mechanism's one end is controlled by wire rope.
Owing to electric or mechanical breakdown occurs, when causing climbing frame to fall, boom hoist cable " deliquescing " or " landing ", it makes the action of braking cylinder hoisting mechanism, braking cylinder (4) is filled in rapidly in the wedge gap, climbing frame braking on supporting member (1), is reached and prevents the purpose of falling.
According to the mechanics principle, the surperficial angle of friction of surface and supporting member (1) of supposing braking cylinder (4) is Φ 1, with the angle of friction of the clinoplain (3) of damper frame (2) be Φ 2, cylinder motor pattern in this wedge gap, as long as α＜Φ 1+ Φ 2 just can play braking and fail.
The utility model provides three kinds of control mode: Fig. 4 to represent weight one cross bar (cam) mechanism, when the wire rope deliquescing, weight loses the support of wire rope, moves downward, carrying on the lifting arm (5), will brake cylinder (4) and fill in and produce braking action in the wedge gap.Fig. 5 represents spring-oblique mechanism, moves right the inclined-plane when spring loses when supporting, forces lifting arm (5) to rise.Fig. 6 represents another kind of spring hoisting mechanism, when the control cross bar turns to certain position, do not recompress spring, compression spring (3) elongation drives on the lifting arm (1) to be carried, boom hoist cable " deliquescing " when 3 kinds of mechanisms all depend on the accident generation, lose balanced action, make the hoisting mechanism action finish braking action weight in the hoisting mechanism or spring.
In order to increase the reliability of braking, will brake the surface of cylinder (4) and carry out annular knurl, embossing is carried out in the place that clinoplain (3) is wanted to contact with braking cylinder (4), to increase friction factor.To brake cylinder (4) simultaneously and be quenched into than higher hardness, when braking took place, the annular knurl pointed tooth that hardens can be nipped in the surface of supporting member (1) and clinoplain (3), increased the reliability of device greatly.
The utility model does not have undue requirement to the verticality of supporting member (1).Even the width of two wedge gaps does not wait, as long as a braking cylinder when working, must win over damper frame (being climbing frame), the micro-displacement (perhaps distortion) that allows will take place in climbing frame, make another braking cylinder horse back also play braking action.
Because the climbing frame during the utility model can will fall is rapidly reliably braked securely on bearing support, therefore can avoid the generation of climbing frame falling accident, ensured constructor's safety effectively.
Claims (3)
1, the climbing scaffold anti-drop device that uses in a kind of high-building construction, it is characterized in that: be with a damper frame in the supporting member outside, damper frame two inboards are the wedge gap that clinoplain and plane, supporting member two outside form the low-angle α of self-locking conditions satisfied, one braking cylinder is respectively arranged in the wedge gap, and lifting arm is equipped with at braking cylinder two ends.When climbing frame fell, lifting arm was filled in the braking cylinder in the wedge gap, and the tenesmus part is braked on supporting member.
2, anti-drop device according to claim 1 is characterized in that: the braking circular surfaces carries out annular knurl and quenching, and embossing is carried out on the clinoplain surface, has increased the reliability of device.
3, anti-drop device according to claim 1 is characterized in that: the lifting arm upper end links with spring-inclined-plane (cam) mechanism, and the action of mechanism is controlled by wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219378 CN2270770Y (en) | 1995-08-23 | 1995-08-23 | Falling-proof device for climbing scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219378 CN2270770Y (en) | 1995-08-23 | 1995-08-23 | Falling-proof device for climbing scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270770Y true CN2270770Y (en) | 1997-12-17 |
Family
ID=33867600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219378 Expired - Lifetime CN2270770Y (en) | 1995-08-23 | 1995-08-23 | Falling-proof device for climbing scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270770Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986665A (en) * | 2015-06-02 | 2016-10-05 | 王德宇 | Lifting base of lifting scaffold |
| CN108953373A (en) * | 2017-05-22 | 2018-12-07 | 向桂洲 | A kind of guide track system and its anti-drop method with anti-falling protection |
-
1995
- 1995-08-23 CN CN 95219378 patent/CN2270770Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986665A (en) * | 2015-06-02 | 2016-10-05 | 王德宇 | Lifting base of lifting scaffold |
| CN105986665B (en) * | 2015-06-02 | 2018-01-02 | 王德宇 | A kind of elevating scaffold upgrade block |
| CN108953373A (en) * | 2017-05-22 | 2018-12-07 | 向桂洲 | A kind of guide track system and its anti-drop method with anti-falling protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |