CN201241462Y - Anti-falling device of electric elevating scaffold raising mechanism - Google Patents
Anti-falling device of electric elevating scaffold raising mechanism Download PDFInfo
- Publication number
- CN201241462Y CN201241462Y CNU2008200422677U CN200820042267U CN201241462Y CN 201241462 Y CN201241462 Y CN 201241462Y CN U2008200422677 U CNU2008200422677 U CN U2008200422677U CN 200820042267 U CN200820042267 U CN 200820042267U CN 201241462 Y CN201241462 Y CN 201241462Y
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- China
- Prior art keywords
- wedge
- wedge body
- cup
- lever
- scaffold
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- Expired - Fee Related
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Abstract
Disclosed is a fall-prevention device of a lifting mechanism of an electric raising scaffold, a pulley block is combined by three pulleys, and a long groove is arranged on a pulley shaft on the left. An upright post is fixed on the scaffold, a base is equipped with a spring seat and a compression spring, a wedge body is arranged above the compression spring, the outer edge of the wedge body is a big end down cone body, the inner aperture of the wedge body is provided with saw teeth, the lower end of the wedge body is provided with a raised circle, the upper portion of the wedge body is provided with four to sixteen longitudinal grooves. A wedge cup is arranged on the wedge body, and the inner edge of the wedge cup is engaged with the outer edge of the wedge body. A lever is mounted on a pivot shaft, the left end of the lever presses on the raised circle at the lower portion of the wedge body in ring shape, the right end of the lever is provided with a shift fork, and the shift fork forks into the other side of the pulley shaft on the left. When a steel wire rope of the lifting mechanism of the electric raising scaffold breaks off, the pulley shaft on the left is out of the control of the steel wire rope, under the action of the compression spring, the wedge body is jacked upwards and acts on the wedge cup engaged with the wedge body, and the saw teeth of the inner aperture of the wedge body hold the upright post tightly, thereby preventing the whole lifting mechanism falling.
Description
Affiliated technical field
The utility model relates to the anti-drop device of the electric lifting scaffold hoisting mechanism of building operations.
Background technology
The hoisting mechanism of the electric lifting scaffold of existing building construction is to act on scaffold by motor by wire rope and assembly pulley, makes scaffold realize lifting.Its weak point is: fall device in the air in the hoisting mechanism, in case when wire cable rupture takes place, whole hoisting mechanism will fall, and fatal crass's major accident will take place.
The utility model content
The purpose of this utility model is the anti-drop device that the electric lifting scaffold hoisting mechanism is provided in order to overcome above-mentioned weak point, in case when wire cable rupture took place, whole hoisting mechanism will pin by safety dropping prevent mechanism, avoids taking place fatal crass's major accident.
The technical scheme that its technical problem that solves the utility model adopts is: the electric lifting scaffold hoisting mechanism, by on three pulleys two next form assembly pulley, the steel wire penetrating assembly pulley utilizes motor that scaffold is promoted or descends.On pulley spindle of on the left side, be provided with elongated slot, pulley spindle drives pulley and slides up and down in elongated slot.In the left side of assembly pulley, the retaining mechanism of anti-drop device is arranged, form by vertical rod, base, spring base, compression spring, wedge, wedge cup, loam cake.A vertical up and down vertical rod is fixed on the scaffold, and base, spring base, wedge, wedge cup, loam cake center are porose, and and vertical rod between gapped.Be fixed with spring base on the base, the compression spring is arranged on the spring base, above the compression spring wedge is arranged, the outer rim of wedge is up-small and down-big cone, and the internal orifice dimension of wedge has zigzag, and prominent circle is arranged at the bottom of wedge, and 4-16 vertical groovings are arranged at the top of wedge.The wedge cup is arranged on wedge, and the inner edge of wedge cup is up-small and down-big cone, matches with the cone of wedge outer rim.Wedge cup and loam cake link into an integrated entity.The bearing pin that is fixed on this device is arranged between assembly pulley and retaining mechanism, lever is housed on bearing pin, the left end of lever circularizes on the prominent circle that is pressed in the wedge bottom, and the right-hand member of lever has shift fork, the opposite side of a pulley spindle of shift fork fork on the left side.When scaffold hoisting mechanism operate as normal, wire rope is upwards mentioned, make the pulley spindle in the left side in elongated slot, be in upper position, the left end of lever is pressed on the prominent circle of wedge bottom, make the cone of wedge not act on the cone of wedge cup, the center and the vertical rod of anti-drop device are gapped, and freedom is moved up and down; When the wire rope of scaffold hoisting mechanism disconnects, make the pulley spindle in the left side lose the control that wire rope is upwards mentioned, under the effect of compression spring, the wedge jack-up that makes progress, and act on the wedge cup that matches, because there is vertical grooving in wedge, has contraction, utilize the sawtooth of wedge internal orifice dimension, will tightly embrace vertical rod, make that whole hoisting mechanism is unlikely to fall.
Effective effect of the present utility model is, uses the anti-drop device of electric lifting scaffold hoisting mechanism of the present utility model, in case when wire cable rupture takes place, whole hoisting mechanism will pin by safety dropping prevent mechanism, avoid taking place fatal crass's major accident.
Description of drawings
Figure is the structural representation of the anti-drop device of electric lifting scaffold hoisting mechanism of the present utility model.1-pulley among the figure, 2-pulley spindle, 3-wire rope, 4-elongated slot, 5-shift fork, 6-bearing pin, 7-lever, 8-vertical rod, 9-loam cake, 10-wedge cup, 11-wedge, 12-compression spring, 13--spring base, 14-base.
The specific embodiment
The electric lifting scaffold hoisting mechanism, next forms assembly pulley by three pulleys (1) last two, and wire rope (3) passes assembly pulley, utilizes motor that scaffold is promoted or descends.On the pulley spindle of on the left side (2), be provided with elongated slot (4), pulley spindle (2) drives pulley (1) and slides up and down in elongated slot (4).In the left side of assembly pulley, the retaining mechanism of anti-drop device is arranged, form by vertical rod (8), base (14), spring base (13), compression spring (12), wedge (11), wedge cup (10), loam cake (9).A vertical up and down vertical rod (8) is fixed on the scaffold, and base (14), spring base (13), wedge (11), wedge cup (10), loam cake (9) center are porose, and and vertical rod (8) between gapped.Be fixed with spring base (13) on the base (14), compression spring (12) is arranged on the spring base (13), there is wedge (11) top at compression spring (12), the outer rim of wedge (11) is up-small and down-big cone, the internal orifice dimension of wedge (11) has sawtooth, prominent circle is arranged at the bottom of wedge (11), and 4-16 vertical groovings are arranged at the top of wedge (11).Wedge cup (10) is arranged on wedge (11), and the inner edge of wedge cup (10) is up-small and down-big cone, matches with the cone of wedge (11) outer rim.Wedge cup (10) and loam cake (9) link into an integrated entity.The bearing pin (6) that is fixed on this device is arranged between assembly pulley and retaining mechanism, lever (7) is housed on bearing pin (6), the left end of lever (7) circularizes on the prominent circle that is pressed in wedge (11) bottom, the right-hand member of lever (7) has shift fork (5), the opposite side of shift fork (a 5) fork pulley spindle of on the left side (2).When scaffold hoisting mechanism operate as normal, wire rope (3) is upwards mentioned, make the pulley spindle in the left side (2) in elongated slot (4), be in upper position, the left end of lever (7) is pressed on the prominent circle of wedge (11) bottom, make the cone of wedge (11) not act on the cone of wedge cup (10), the center of anti-drop device and vertical rod (8) are gapped, and freedom is moved up and down; When the wire rope (3) of scaffold hoisting mechanism disconnects, make the pulley spindle in the left side (2) lose the control that wire rope (3) is upwards mentioned, under the effect of compression spring (12), wedge (11) is jack-up upwards, and acts on the wedge cup (10) that matches, because there is vertical grooving in wedge (11), has contraction, utilize the sawtooth of wedge (11) internal orifice dimension, will tightly embrace vertical rod (8), make that whole hoisting mechanism is unlikely to fall.
Claims (1)
1, the anti-drop device of electric lifting scaffold hoisting mechanism is characterized in that: by on three pulleys two next form assembly pulley, the steel wire penetrating assembly pulley on pulley spindle of on the left side, is provided with elongated slot; A vertical up and down vertical rod is fixed on the scaffold, base, spring base, wedge, wedge cup, loam cake center are porose, and and vertical rod between gapped, be fixed with spring base on the base, the compression spring is arranged on the spring base, above the compression spring, wedge is arranged, the outer rim of wedge is up-small and down-big cone, the internal orifice dimension of wedge has zigzag, and prominent circle is arranged at the bottom of wedge, and 4-16 vertical groovings are arranged at the top of wedge, the wedge cup is arranged on wedge, the inner edge of wedge cup is up-small and down-big cone, matches with the cone of wedge outer rim, and wedge cup and loam cake link into an integrated entity; The bearing pin that is fixed on this device is arranged between assembly pulley and retaining mechanism, lever is housed on bearing pin, the left end of lever circularizes on the prominent circle that is pressed in the wedge bottom, and the right-hand member of lever has shift fork, the opposite side of a pulley spindle of shift fork fork on the left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200422677U CN201241462Y (en) | 2008-08-04 | 2008-08-04 | Anti-falling device of electric elevating scaffold raising mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200422677U CN201241462Y (en) | 2008-08-04 | 2008-08-04 | Anti-falling device of electric elevating scaffold raising mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241462Y true CN201241462Y (en) | 2009-05-20 |
Family
ID=40714758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200422677U Expired - Fee Related CN201241462Y (en) | 2008-08-04 | 2008-08-04 | Anti-falling device of electric elevating scaffold raising mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241462Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948059A (en) * | 2010-08-31 | 2011-01-19 | 四川华山建筑有限公司 | Anti-dropping device of lifting equipment |
| CN105313850A (en) * | 2015-11-26 | 2016-02-10 | 广西银钢南益制造有限公司 | Telescopic supporting leg |
| CN105986665A (en) * | 2015-06-02 | 2016-10-05 | 王德宇 | Lifting base of lifting scaffold |
| CN110173104A (en) * | 2019-06-27 | 2019-08-27 | 苏泉云 | The anti-falling structure of attached lifting scaffold |
| CN113103086A (en) * | 2020-01-09 | 2021-07-13 | 江阴市晓达金属制品制造股份有限公司 | Centerless grinder layer board convenient to change |
| CN113275796A (en) * | 2021-05-24 | 2021-08-20 | 襄阳新金开泵业有限公司 | High-universality protective mask structure, assembling machine and protective method |
-
2008
- 2008-08-04 CN CNU2008200422677U patent/CN201241462Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948059A (en) * | 2010-08-31 | 2011-01-19 | 四川华山建筑有限公司 | Anti-dropping device of lifting equipment |
| 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 |
| CN105313850A (en) * | 2015-11-26 | 2016-02-10 | 广西银钢南益制造有限公司 | Telescopic supporting leg |
| CN105313850B (en) * | 2015-11-26 | 2018-01-19 | 广西银钢南益制造有限公司 | A kind of telescopic support legs |
| CN110173104A (en) * | 2019-06-27 | 2019-08-27 | 苏泉云 | The anti-falling structure of attached lifting scaffold |
| CN110173104B (en) * | 2019-06-27 | 2024-02-06 | 苏泉云 | Anti-falling structure attached with lifting scaffold |
| CN113103086A (en) * | 2020-01-09 | 2021-07-13 | 江阴市晓达金属制品制造股份有限公司 | Centerless grinder layer board convenient to change |
| CN113275796A (en) * | 2021-05-24 | 2021-08-20 | 襄阳新金开泵业有限公司 | High-universality protective mask structure, assembling machine and protective method |
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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: 20090520 Termination date: 20150804 |
|
| EXPY | Termination of patent right or utility model |