CN201224995Y - Locking mechanism preventing lifting scaffold from falling down - Google Patents
Locking mechanism preventing lifting scaffold from falling down Download PDFInfo
- Publication number
- CN201224995Y CN201224995Y CNU2008200378212U CN200820037821U CN201224995Y CN 201224995 Y CN201224995 Y CN 201224995Y CN U2008200378212 U CNU2008200378212 U CN U2008200378212U CN 200820037821 U CN200820037821 U CN 200820037821U CN 201224995 Y CN201224995 Y CN 201224995Y
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- CN
- China
- Prior art keywords
- pressing plate
- steel ball
- return spring
- lock body
- press plate
- 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 locking mechanism which can prevent a lifting scaffold from falling. The locking mechanism comprises a press plate return spring, guide posts, a supporting pin, a steel ball, a steel ball return spring, a press plate and a lock body, wherein the press plate and the lock body are perforated and connected to an anti-falling pull rod, the press plate is arranged on the upper side of the lock body, a plurality of guide posts are connected to the end surface of the press plate which faces to one side of the lock body, the press plate return spring is inserted to the guide posts, the free end of the press plate return spring is pressed on the lock body, a plurality of slant holes and a plurality of guide holes are evenly distributed on the lock body, the upper side of each slant hole is provided with a supporting pin hole which is communicated with each slant hole, the steel ball and the steel ball return spring are arranged in the slant holes, the supporting pin is inserted into the supporting pin hole and is pressed on the steel ball by the deadweight of the supporting pin, the guide post is inserted into the guide hole, one end of a lever is connected to the upper end of the press plate, and one end of the lever is connected with the free end of the press plate return spring. The utility model has the advantages that the locking mechanism in the anti-falling device only can move upwards but can not move downwards, the lifting device and the scaffold can be reliably locked on the anti-falling pull rod, and the mechanism has simple structure and convenient installation.
Description
Technical field
The utility model relates to building machinery, but relates in particular to the retaining mechanism that a kind of anti-hoisting scaffold is fallen
Background technology
Along with building constantly increases, but hoisting scaffold is improved synchronously by lifting means.Hoisting scaffold is in the process that promotes, if the stressed member that lifting means damages or promotes damages, the stressed mistake of hoisting scaffold is carried and will be produced the phenomenon of falling, in case when therefore taking place when falling, one retaining mechanism must be arranged, a kind of fall arrest retaining mechanism of lifting means that will fall and the locking of pin hand.
But the mechanical type anti-fall device of the present hoisting scaffold of using always as shown in Figure 3, and it mainly is made up of cylindrical shell 117,118 pressing plates, spring 121, load axle 120 and office's pin 119.When scaffold was desired to fall owing to certain accident, the stressed mistake of scaffold was carried, and drive office pin 119 is transferred to, and load axle 120 ejects under the effect of spring force, play anti-fall effect in the strut rail space of the vertical framework of load axle 120 meeting insertion integral-scaffolds.The load axle meeting flexural deformation of this anti-drop device, anti-fall weak effect, the strut rail space processing trouble of the vertical framework of scaffold.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, but designs a kind of anti-fall reliable for effectly and be convenient on scaffold to install the retaining mechanism that a kind of anti-hoisting scaffold implemented is fallen, and it is implemented by following technical scheme:
Comprise the pressing plate return spring, guide pillar, thimble, steel ball, steel ball return spring and cross-under pressing plate and the lock body on described anti-fall pull bar, pressing plate places the upside of lock body, several guide pillars are connected on the pressing plate end face facing to lock body one side, the pressing plate return spring is plugged on the guide pillar, its free end is pressed and is touched on lock body, be evenly equipped with several inclined holes and several pilot holes on the lock body, each inclined hole upside is provided with the centre hole that is communicated with it, steel ball and steel ball return spring place in the inclined hole, thimble is plugged in the centre hole and by touching on steel ball from weight, guide pillar is plugged in the pilot hole, described lever one end is connected the pressing plate upper end, one end is connected with the free end of pressing plate return spring, at lever pressing plate is produced described pushing and pressing and do the time spent, pressing plate by thimble pushing and pressing steel ball along inclined hole to moving away from anti-fall pull bar axis direction, and compression steel ball return spring, at lever pressing plate is not had described pushing and pressing and do the time spent, the pressing plate return spring makes the pressing plate return, and steel ball return spring pushing and pressing steel ball moves to close anti-fall pull bar axis direction along inclined hole.
Described lock body is made up of cylinder, post circle and gland, and gland is connected the upper end of cylinder by screw, and post circle close-fitting is at the outer circumferential side of cylinder, and described several inclined holes and several pilot holes are separately positioned on cylinder and the post circle, and several centre holes are arranged on the gland.
The outer circumferential side of described gland is connected with dust cover.
The utility model connects the retaining mechanism and the lifting means that can be locked on the anti-fall pull bar by a lever, and this lifting means connects scaffold.When the scaffold that can promote falls, lever is rotated, the steel ball on the retaining mechanism will be pressed on the anti-fall pull bar, and whole retaining mechanism is locked on the anti-fall pull bar.Like this, scaffold and lifting means also are locked on the anti-fall pull bar.And retaining mechanism can only move up, and can not move down, so this locking is very reliable.Retaining mechanism is simple in structure simultaneously, needs only its cross-under on anti-fall pull bar, installs very convenient.
Description of drawings
Fig. 1 is the structural representation that the utility model is in locking state.
Fig. 2 is the structural representation that the utility model is in releasing orientation.
But Fig. 3 is the mechanical type anti-fall device structural representation of existing hoisting scaffold.
Among the figure, 2 anti-fall pull bars, 3 levers, 20 retaining mechanisms, 21 pressing plates, 22 dust covers, 23 pressing plate return springs, 24 guide pillars, 25 post circles, 26 inclined holes, 27 steel ball return springs, 28 steel balls, 29 glands, 30 thimbles, 31 cylinders, 32 dust covers, 33 pilot holes.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Contrast Fig. 1, retaining mechanism 20 of the present utility model mainly is made up of pressing plate 21, return spring 23, guide pillar 24, thimble 30, steel ball 28, steel ball return spring 27, pressing plate 21 and lock body.Lock body then is made up of cylinder 31, post circle 25 and gland 29, and gland 29 is connected the upper end of cylinder 31 by screw, and post circle 25 close-fittings are in the outer circumferential sides of cylinder 31.Be evenly equipped with three centre holes on the gland 29, the position of cylinder 31 corresponding three centre holes is provided with three inclined holes 26, and each centre hole is communicated with corresponding inclined hole 26.Return spring 23 places the bottom of inclined hole 26, and steel ball 28 is placed on the upper end of return spring 23, and thimble 30 is plugged in the centre hole, and its lower end is by touching on steel ball from weight.
Lifting means and scaffold act on retaining mechanism of the present utility model by lever 3, and an end of lever 3 is connected (see figure 3) by the upper end of the pressing plate 21 in bolt 13 and the retaining mechanism, and the other end is connected with lifting means and scaffold.
Be at lifting means and upwards climb or when climbing state downwards, to produce active force to the link of lever 3, link to retaining mechanism produces downward active force thus, make pressing plate 21 to pressing down, thimble 30 downward pressing steel balls 28, steel ball 28, be not pressed on the anti-fall pull bar 2 to moving away from anti-fall pull bar axis direction along inclined hole 26, steel ball return spring 27 is compressed, and retaining mechanism is in releasing orientation.At this moment, lifting means drive scaffold climbs or climbs, and retaining mechanism is inoperative to lifting means and scaffold.
When lifting means loses when supporting suddenly, the link of lever 3 is not produced active force, then the pressing plate 21 no downward pressures on 3 pairs of retaining mechanism 20 tops of lever.Pressing plate 21 will move up under the effect of return spring power 5, and this moment, thimble no longer was subjected to the compacting of pressing plate 21, and steel ball moves to close anti-fall pull bar axis direction along inclined hole under the effect of steel ball return spring, makes steel ball be locked on the anti-fall pull bar.And anti-fall pull bar is fixed, so whole anti-drop device can only move up, can not move down, and plays the fall arrest effect in the scaffold lifting process, i.e. locking state.Like this, retaining mechanism 20 just can effectively prevent lifting means and the falling of the scaffold that is attached thereto, and connection system for guide rail firmly is locked on the anti-faller.
Claims (3)
1. but retaining mechanism that anti-hoisting scaffold is fallen, it is characterized in that comprising the pressing plate return spring, guide pillar, thimble, steel ball, steel ball return spring and cross-under pressing plate and the lock body on anti-fall pull bar, pressing plate places the upside of lock body, several guide pillars are connected on the pressing plate end face facing to lock body one side, the pressing plate return spring is plugged on the guide pillar, its free end is pressed and is touched on lock body, be evenly equipped with several inclined holes and several pilot holes on the lock body, each inclined hole upside is provided with the centre hole that is communicated with it, steel ball and steel ball return spring place in the inclined hole, thimble is plugged in the centre hole and by touching on steel ball from weight, guide pillar is plugged in the pilot hole, lever one end is connected the pressing plate upper end, one end is connected with the free end of pressing plate return spring, at lever pressing plate is produced pushing and pressing and do the time spent, pressing plate by thimble pushing and pressing steel ball along inclined hole to moving away from anti-fall pull bar axis direction, and compression steel ball return spring, at lever pressing plate is not had pushing and pressing and do the time spent, the pressing plate return spring makes the pressing plate return, and steel ball return spring pushing and pressing steel ball moves to close anti-fall pull bar axis direction along inclined hole.
2. but the retaining mechanism that a kind of anti-hoisting scaffold according to claim 1 is fallen, it is characterized in that described lock body is made up of cylinder, post circle and gland, gland is connected the upper end of cylinder by screw, post circle close-fitting is at the outer circumferential side of cylinder, described several inclined holes and several pilot holes are separately positioned on cylinder and the post circle, and several centre holes are arranged on the gland.
3. but the retaining mechanism that a kind of anti-hoisting scaffold according to claim 1 is fallen is characterized in that the outer circumferential side of described pressing plate is connected with dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378212U CN201224995Y (en) | 2008-07-03 | 2008-07-03 | Locking mechanism preventing lifting scaffold from falling down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378212U CN201224995Y (en) | 2008-07-03 | 2008-07-03 | Locking mechanism preventing lifting scaffold from falling down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224995Y true CN201224995Y (en) | 2009-04-22 |
Family
ID=40597882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200378212U Expired - Fee Related CN201224995Y (en) | 2008-07-03 | 2008-07-03 | Locking mechanism preventing lifting scaffold from falling down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224995Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296800A (en) * | 2011-06-22 | 2011-12-28 | 花周建 | Hydraulic elevating mechanism of scaffold |
| CN102359263A (en) * | 2011-10-19 | 2012-02-22 | 陕西浚达技术工程有限责任公司 | Automatic falling preventing device for integral lifting scaffold |
| CN103061497A (en) * | 2012-12-11 | 2013-04-24 | 河南工业职业技术学院 | Working-condition self-adaptive lifting and falling-prevention device of scaffold |
| CN103628665A (en) * | 2013-12-19 | 2014-03-12 | 刘应杰 | Overall hoisting scaffold force feedback type anti-dropping locking mechanism |
| CN108594096A (en) * | 2018-07-25 | 2018-09-28 | 安徽硕日光电科技有限公司 | A kind of high voltage electric transmission cable on-line measuring device |
-
2008
- 2008-07-03 CN CNU2008200378212U patent/CN201224995Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296800A (en) * | 2011-06-22 | 2011-12-28 | 花周建 | Hydraulic elevating mechanism of scaffold |
| CN102296800B (en) * | 2011-06-22 | 2013-06-12 | 花周建 | Hydraulic elevating mechanism of scaffold |
| CN102359263A (en) * | 2011-10-19 | 2012-02-22 | 陕西浚达技术工程有限责任公司 | Automatic falling preventing device for integral lifting scaffold |
| CN102359263B (en) * | 2011-10-19 | 2013-09-04 | 陕西浚达技术工程有限责任公司 | Automatic falling preventing device for integral lifting scaffold |
| CN103061497A (en) * | 2012-12-11 | 2013-04-24 | 河南工业职业技术学院 | Working-condition self-adaptive lifting and falling-prevention device of scaffold |
| CN103061497B (en) * | 2012-12-11 | 2016-03-30 | 河南工业职业技术学院 | The lifting of a kind of operating mode self-adapting type scaffold and anti-drop device |
| CN103628665A (en) * | 2013-12-19 | 2014-03-12 | 刘应杰 | Overall hoisting scaffold force feedback type anti-dropping locking mechanism |
| CN103628665B (en) * | 2013-12-19 | 2015-08-12 | 刘应杰 | Integral lifting scaffold force feedback type anti-falling locking mechanism |
| CN108594096A (en) * | 2018-07-25 | 2018-09-28 | 安徽硕日光电科技有限公司 | A kind of high voltage electric transmission cable on-line measuring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20100703 |