CN201224996Y - Mechanical type anti-fall device of lifting scaffold - Google Patents
Mechanical type anti-fall device of lifting scaffold Download PDFInfo
- Publication number
- CN201224996Y CN201224996Y CNU2008200378227U CN200820037822U CN201224996Y CN 201224996 Y CN201224996 Y CN 201224996Y CN U2008200378227 U CNU2008200378227 U CN U2008200378227U CN 200820037822 U CN200820037822 U CN 200820037822U CN 201224996 Y CN201224996 Y CN 201224996Y
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- CN
- China
- Prior art keywords
- pressing plate
- lever
- compression spring
- steel ball
- fall
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- Expired - Lifetime
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Abstract
The utility model relates to a mechanical type anti-falling device for lifting a scaffold, which is arranged on a scaffold and a corresponding lifting device. The mechanical type anti-falling device comprises a compression spring, a compression spring supporting plate, a stress cross rod, a lever, an anti-falling pull rod and a locking mechanism which can be locked on the anti-falling pull rod, wherein the locking mechanism is perforated and connected on the anti-falling pull rod, the compression spring supporting plate is connected with the stress cross rod which is used for supporting the lifting device, one end of the compression spring is connected to the compression spring supporting plate, the lever is hinged to the scaffold, one end of the lever is connected with the locking mechanism, and the other end of the lever is connected with the free end of the compression spring; when one end of the lever is pushed by the compression spring to rotate, the other end of the lever generates a supporting function for the locking mechanism. 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 a kind of mechanical type anti-fall device of hoisting scaffold.
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, and therefore falling proof device must be arranged.
But the mechanical type anti-fall device of the present hoisting scaffold of using always as shown in Figure 5, 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 mechanical type anti-fall device of a kind of hoisting scaffold of implementing, and it is implemented by following technical scheme:
Be installed on scaffold and the corresponding lifting means, comprise the compression spring, the compression spring planet, stressed cross bar, lever, anti-fall pull bar and the retaining mechanism that can be locked on the anti-fall pull bar, the retaining mechanism cross-under is on anti-fall pull bar, the compression spring planet is connected with the stressed cross bar of the described lifting means of supporting, compression spring one end is connected on the compression spring planet, lever is articulated in described scaffold, one end of this lever connects retaining mechanism, one end connects the free end of compression spring, when compression spring promotion lever one end rotated it, the lever other end produced the pushing and pressing effect to retaining mechanism.
Described retaining mechanism is by 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 formed, 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 a structural representation of the present utility model.
Fig. 2 is that the C of structure shown in Figure 1 is to view.
Fig. 3 is the structure of retaining mechanism and the schematic diagram that is in locking state.
Fig. 4 is the structure of retaining mechanism and the schematic diagram that is in releasing orientation.
But Fig. 5 is the mechanical type anti-fall device structural representation of existing hoisting scaffold.
Among the figure, 2 anti-fall pull bars, 3 levers, 4 pin joints, 5 compression springs, 6 compression spring planets, 7 scaffold crosspieces, the stressed support of 8 lifting means, 9 stressed cross bars, 11 lifting means force rods, 13 bolts, strut rail on 14,15 times strut rails, 16 supports, 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, 40 lifting means, 50 fabric structures, 51 supporting roof beams structure, 52 force rod hold-down nuts.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Contrast Fig. 1, Fig. 2, anti-drop device of the present utility model mainly are made up of compression spring 5, compression spring planet 6, stressed cross bar 9, lever 3, anti-fall pull bar 2 and retaining mechanism 20.Anti-fall pull bar 2 is settled on the supporting roof beam structure 51 that is fixed on the fabric structure 50.Retaining mechanism 20 cross-under and can be locked on anti-fall pull bar or unclamp on anti-fall pull bar 2.Lifting means 40 is jack, and it is installed on the lifting means force rod 11, and scaffold is connected on the lifting means 40, and lifting means 40 is bearing on the stressed cross bar 9.Lifting means 40 can be along the lifting means force rod upwards or move down, and stressed cross bar 9 can be mobile between strut rail A on the stressed support 8 of lifting means and down horizontal B retaining, and the stressed support 8 of lifting means is fixed on the scaffold crosspiece 7.Lifting means 40, is driving scaffold and is rising or descend upwards or when moving down along the lifting means force rod.
Contrast Fig. 3, the retaining mechanism 20 in the utility model device 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 40 connects retaining mechanism 20 by lever 3.Lever 3 is articulated on the support 16 that is connected on the scaffold crosspiece 7.Its end is connected (see figure 2) by the upper end of the pressing plate 21 in bolt 13 and the retaining mechanism, and the other end touches the free end that compresses spring 5.Compression spring 5 places on the compression spring planet 6, and compression spring planet 6 is connected with stressed cross bar 9.
Be at lifting means and upwards climb or when climbing state downwards, lifting means 40 and the scaffold that is connected on this lifting means are bearing on the stressed cross bar 9 fully, and stressed cross bar 9 is connected with compression spring planet 6, this supporting force is by the right-hand member effect of the compression spring on the compression spring planet 6 to lever 3, lever 3 rotates around pin joint 4, make its left end to the pressing plate 21 on retaining mechanism 20 tops to pressing down, thimble 30 downward pressing steel balls 28, steel ball 28 along inclined hole 26 to moving away from anti-fall pull bar axis direction, be not pressed on the anti-fall pull bar 2, steel ball return spring 27 is compressed, and retaining mechanism is in releasing orientation.At this moment, lifting means drive scaffold climbs on lifting means force rod 11 or climbs, and retaining mechanism is inoperative to lifting means and scaffold.
When the upper end of lifting means force rod 11 nut 52 (see figure 1)s come off or lifting means force rod 11 fracture waits when stressed cross bar 9 being lost suddenly support, scaffold will together fall with lifting means force rod 11,6 pairs of lever 3 right-hand members of compression spring on the compression spring planet 6 do not have active force, and then the left end of lever 3 is to the pressing plate 21 no downward pressures on retaining mechanism 20 tops.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 (4)
1. but the mechanical type anti-fall device of a hoisting scaffold, be installed on scaffold and the corresponding lifting means, it is characterized in that comprising the compression spring, the compression spring planet, stressed cross bar, lever, anti-fall pull bar and the retaining mechanism that can be locked on the anti-fall pull bar, the retaining mechanism cross-under is on anti-fall pull bar, the compression spring planet is connected with the stressed cross bar of the described lifting means of supporting, compression spring one end is connected on the compression spring planet, lever is articulated in described scaffold, one end of this lever connects retaining mechanism, one end touches the free end of compression spring, when compression spring promotion lever one end rotated it, the lever other end produced the pushing and pressing effect to retaining mechanism.
2. but the mechanical type anti-fall device of a kind of hoisting scaffold according to claim 1, it is characterized in that described retaining mechanism is by 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 formed, 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.
3. but the mechanical type anti-fall device of a kind of hoisting scaffold according to claim 2, 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.
4. but the mechanical type anti-fall device of a kind of hoisting scaffold according to claim 2 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 |
|---|---|---|---|
| CNU2008200378227U CN201224996Y (en) | 2008-07-03 | 2008-07-03 | Mechanical type anti-fall device of lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378227U CN201224996Y (en) | 2008-07-03 | 2008-07-03 | Mechanical type anti-fall device of lifting scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224996Y true CN201224996Y (en) | 2009-04-22 |
Family
ID=40597883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200378227U Expired - Lifetime CN201224996Y (en) | 2008-07-03 | 2008-07-03 | Mechanical type anti-fall device of lifting scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224996Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102493635A (en) * | 2011-11-30 | 2012-06-13 | 深圳市特辰科技股份有限公司 | Automatic location and falling prevention device of lifting scaffold |
| CN102979299A (en) * | 2012-12-19 | 2013-03-20 | 江苏安德信超导加速器科技有限公司 | Anti-falling safety device with lifting scaffold |
-
2008
- 2008-07-03 CN CNU2008200378227U patent/CN201224996Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102493635A (en) * | 2011-11-30 | 2012-06-13 | 深圳市特辰科技股份有限公司 | Automatic location and falling prevention device of lifting scaffold |
| CN102979299A (en) * | 2012-12-19 | 2013-03-20 | 江苏安德信超导加速器科技有限公司 | Anti-falling safety device with lifting scaffold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090422 Effective date of abandoning: 20080703 |