CN101302890B - Runner drop proof positioning type elevating scaffold and working method thereof - Google Patents
Runner drop proof positioning type elevating scaffold and working method thereof Download PDFInfo
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- CN101302890B CN101302890B CN2008100682575A CN200810068257A CN101302890B CN 101302890 B CN101302890 B CN 101302890B CN 2008100682575 A CN2008100682575 A CN 2008100682575A CN 200810068257 A CN200810068257 A CN 200810068257A CN 101302890 B CN101302890 B CN 101302890B
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Abstract
The invention provides an anti-dropping positioning device for an attached type lifting scaffold and a working method thereof. The anti-dropping positioning device of the invention comprises a guide seat which is connected with a guide-rail sleeve; a guide rail is provided with cross bars which are arranged at interval, and the guide seat is provided with an anti-dropping positioning wheel which is in sliding mesh type transmission with the cross bars; a clutch device is arranged between the wheel body of the anti-dropping positioning wheel and the shaft seat of the anti-dropping positioning wheel. During the slowly rising and dropping of the scaffold, the sudden dropping of the scaffold can cause the anti-dropping positioning wheel to generate relatively high speed of reverse rotation, and an auto-trigger triggers the clutch device to work, which causes the anti-dropping positioning wheel to be incapable of having reverse rotation and to block the cross bars at interval arrangement on guide rails so as to prevent the scaffold from continuously dropping. While the dropping of the scaffold to a certain position, the clutch device is manually operated to prevent the anti-dropping positioning wheel from reverse rotation by blocking the cross bars on the guide rail so as to realize the positioning of the scaffold. The anti-dropping positioning device for an attached type lifting scaffold of the invention has the advantages of compact structure, short braking length, flexible operation, being difficult to be blocked and stopped, simple and easy installation and safe and reliable use.
Description
Technical field
The invention belongs to the realm of building construction, relate in particular to a kind of runner drop proof positioning type elevating scaffold and method of work thereof.
Background technology
The building attachment type raise scaffold is the equipment that uses in high-rise and the construction of super highrise building.Lifting false work mainly comprises guide bracket, guide rail, support body, Hoisting System and control system etc.Use or running in, the no fall arrest facility that has, even and have adopted anti-drop device; But general volume is bigger, or loses efficacy easily after using a period of time, in case meet accident; Be easy to cause the high-altitude to fall or the device damage accident, bring potential safety hazard.There are many lifting false works to be provided with falling proof device at present; A kind of " balancing point type fall-preventing device " disclosed like Chinese invention patent CN1195063; It is can be around the balancing point of hinge swing through being provided with one, and when support body fell, rail guide piece was stuck; Make balancing point can't accomplish rotation, thus prevent scaffold continue fall.Above-mentioned balancing point structure has solved the fall arrest problem when scaffold is descending at a slow speed preferably, but because its reaction is too sensitive, is easy to produce jam in the use, often influences normal decline process, operation inconvenience in practice.Its braking distance is also long simultaneously.
Summary of the invention
It is reliable that one of purpose of the embodiment of the invention provides a kind of sensitivity, and braking distance is short, is difficult for taking place the runner drop proof positioning type elevating scaffold of jam phenomenon.
The embodiment of the invention is achieved in that a kind of runner drop proof positioning type elevating scaffold, comprises guide bracket, guide rail, support body, Hoisting System and control system; Said guide bracket is connected with said guide rail sliding sleeve; Said guide bracket is provided with anti-fall locating wheel; Said guide rail is provided with cross bar at interval; The cross bar at said anti-fall locating wheel and said interval is connected with a joggle, and between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, is provided with arrangement of clutch; Said arrangement of clutch is made up of manual trigger, automatic trigger and braking positioner.
Two of the purpose of the embodiment of the invention provides a kind of method of work of runner drop proof positioning type elevating scaffold.
The job step of the embodiment of the invention is such:
When support body promoted, manual trigger is in opened or closes (disconnection) state, and power-equipment just changes, and support body slowly rises; Support body is shut down earlier after promoting and putting in place, by hand manual trigger is in open mode, power-equipment counter-rotating, support body location; Repeat said process, support body constantly promotes and locatees, through top layer;
When support body descended, power-equipment just changeed earlier, support body is promoted a bit of back shut down, and manual (disconnection) state of closing that manual trigger is in starts the power-equipment counter-rotating, and support body slowly descends; After support body decline puts in place, shut down earlier, by hand manual trigger is in open mode, power-equipment continues to reverse, the support body location; Repeat said process, support body constantly descends and locatees, through bottom.
Anti-fall and the location of the embodiment of the invention is achieved in that scaffold is in slow lifting and slow decline process; Support body tenesmus suddenly can cause anti-fall locating wheel to produce bigger backward rotation speed; Automatic trigger triggers the work of braking positioner; Make anti-fall locating wheel can not continue backward rotation, anti-fall locating wheel blocks the cross bar at the interval that is provided with on the guide rail, prevents that scaffold from continuing to fall.Support body descends when putting in place, opens manual trigger by hand, triggers the work of braking positioner, makes the anti-fall locating wheel can not backward rotation, and anti-fall locating wheel blocks the cross bar at the interval that is provided with on the guide rail, realizes the location of support body.
The structure that the present invention designed is very compact, and is safe and reliable during use, and anti-drop device fault in location own can not cause a serious accident, and both can realize that scaffold rises and falls normally and locatees, and can also prevent falling unusually of scaffold simultaneously effectively.
Description of drawings
Fig. 1 is the lateral view that the embodiment of the invention provides;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 a is brake component, automatic trigger, manual trigger and the anti-fall locating wheel shaft-assembling structure front explosive view of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 3 b is brake component, automatic trigger, manual trigger and the anti-fall locating wheel shaft-assembling structure back side explosive view of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 4 is brake component, automatic trigger, manual trigger and the anti-fall locating wheel wheel shaft setting plane of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 5 is the automatic trigger structural perspective of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 6 is that switch block cooperates sketch map with brake component, guide bracket in the automatic trigger implementation method of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 7 follows the tracks of the rot stereogram in the automatic trigger implementation method of one of arrangement of clutch of providing of the embodiment of the invention;
Fig. 8 is that two anti-fall locating wheel wheel end of body of the arrangement of clutch that provides of the embodiment of the invention is connected sketch map with guide bracket.
Fig. 9 is that three anti-fall locating wheel wheel end of body of the arrangement of clutch that provides of the embodiment of the invention is connected sketch map with guide bracket.
Figure 10 is that three anti-fall locating wheel wheel end of body of the arrangement of clutch that provides of the embodiment of the invention is implemented the sketch map of location.
In the diagram:
The 1-guide bracket; The 11-position-arresting groove; The 12-flange;
The 13-switch block; The 14-breaker slot; The 15-centring ring;
The anti-fall locating wheel of 2-; The 3-brake component; The 4-manual trigger;
The 5-automatic trigger; 50-triggers spring; 51-follows the tracks of rot;
511-is protruding; The 512-projection; 52-triggers the screens device;
The 53-trigger blocks; 54-U type spring; The 55-breach;
513-stop bit post;
6-cross bar at interval; The 7-guide rail; The rail-guided device of 71-.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention proposes a kind of runner drop proof positioning type elevating scaffold, comprise guide bracket, guide rail, support body, Hoisting System and control system etc.Said guide bracket is connected with said guide rail sliding sleeve; Said guide bracket is provided with anti-fall locating wheel; Said guide rail is provided with cross bar at interval; The cross bar at said anti-fall locating wheel and said interval is connected with a joggle, and between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, is provided with arrangement of clutch.Said arrangement of clutch is made up of manual trigger, automatic trigger and braking positioner.
The arrangement of clutch of the present invention through between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, being provided with; In lifting false work lifting or decline process, produce when falling unusually; Triggering the braking positioner works immediately; Make anti-fall locating wheel can not continue counter-rotation, block the cross bar at the interval that is provided with on the guide rail, prevented the continuation tenesmus of lifting false work effectively.
When lifting false work promoted, manual trigger is in opened or closes (disconnection) state, the cross bar engagement at the interval of anti-fall locating wheel and guide rail, and forward slowly rotates, and lifting false work slowly rises.If this moment, lifting false work dropped suddenly, then anti-fall locating wheel is backward rotation immediately, triggers the braking positioner and works immediately, and anti-fall locating wheel stops operating, and blocks cross bar at interval on the guide rail, and lifting false work is stopped, and prevents that it from continuing to fall.
When lifting false work descended, manual trigger was in (disconnection) state of cutting out, the cross bar engagement at the interval of anti-fall locating wheel and guide rail, and reverse slowly rotation, lifting false work slowly descends.If this moment, lifting false work dropped suddenly, the counter-rotational speed of then anti-fall locating wheel is accelerated immediately, triggers the braking positioner and works immediately; Anti-fall locating wheel stops operating, and blocks cross bar at interval on the guide rail, and then lifting false work is stopped; Prevent that it from falling fast, play anti-fall effect.
Scaffold descends when putting in place, opens manual trigger by hand, triggers the work of braking positioner, makes the anti-fall locating wheel can not backward rotation, and then blocks on the guide rail cross bar at interval, the location of realizing support body.
Fig. 1～Figure 10 has showed three the application implementation examples of a kind of runner drop proof positioning type elevating scaffold that design according to the invention described above, below in conjunction with accompanying drawing apparatus of the present invention embodiment is done further detailed description.
Embodiment one:
Like Fig. 1～shown in Figure 7, present embodiment comprises a guide bracket 1, a guide rail 7, and guide rail 7 is connected with guide bracket 1 sliding sleeve.Said guide bracket 1 is a frame-like member, and it is provided with rail-guided device 71, can the guide rail 7 of attachment type raise scaffold be led, and can make support body and body of wall keep certain spacing, and the introversion of control scaffold is turned up and turned on one's side.Shown in Fig. 1, Fig. 3 A, 3B, spaced cross bar 6 on the said guide rail 7; The runner of said anti-fall locating wheel 2 is a chain colyliform or gear-like member, with cross bar 6 engaged transmission at interval, is loaded on said guide bracket 1 framework central authorities, and its runner adopts integral structure with rotating shaft, can rotation forward or backwards in guide rail 7.Be provided with the arrangement of clutch of forming by manual trigger 4, automatic trigger 5, brake component 3 and breaker slot 14 between the axle bed of anti-fall locating wheel 2 and anti-fall locating wheel 2.Control the backward rotation of anti-fall locating wheel 2 through arrangement of clutch work, realize the location of guide rail 7 and anti-fall.
The arrangement of clutch of present embodiment reaches the braking positioner that is made up of brake component 3, breaker slot 14, centring ring 15 and switch block 13 by manual trigger 4, automatic trigger 5 and forms.Thereby present embodiment is the speed increment that utilizes support body tenesmus to cause anti-fall locating wheel 2 reverse speeds to strengthen to be produced to be triggered brake component 3 and gets into the cross bar 6 that in the breaker slots 14 anti-fall locating wheel 2 is stopped operating to block on the guide rail at interval and realize the anti-fall of support body and location.
Referring to Fig. 3 A, Fig. 3 B, present embodiment is that the axle bed sidewall at the anti-fall locating wheel 2 of guide bracket 1 is sequentially provided with a discoid flange 12 and centring ring 15, and discoid flange 12 is located at the sidewall of guide bracket 1, is positioned at the end of anti-fall locating wheel 2 wheel shafts one end; Flange 12 contains an inner chamber, and lower sidewall is provided with a radial direction through hole, and anti-fall locating wheel 2 rotating shafts can be passed through flange 12 lumen centers; Breaker slot 14 is inner groovy structures, is arranged in the periphery of inner chamber.Position at the corresponding breaker slot 14 of flange 12 inner chambers; Be provided with a switch block 13, this switch block 13 is fixed in the rotating shaft of anti-fall locating wheel 2, together rotates with anti-fall locating wheel 2; Its both sides inwardly are provided with the hook-shaped groove of dog shape relatively, and hook-shaped groove position is relative with breaker slot 14 positions.Centring ring 15 is located at the outside side of flange 12, and these centring ring 15 inwalls also are furnished with an above position-arresting groove 11.
Shown in Fig. 1, Fig. 3 A, Fig. 3 B, Fig. 4～6,, be provided with brake component 3, manual trigger 4 and automatic trigger 5 in the roller end of anti-fall locating wheel 2; Brake component 3 is a cylindrical component, is arranged at flange 12 inner chambers, between the hook-shaped groove and breaker slot 14 of switch block 13 both sides, can get in hook-shaped groove and the breaker slot 14.
For guaranteeing that triggering screens device 52 can keep in touch with trigger blocks 53 all the time; Like Fig. 3 B, shown in Figure 4; Present embodiment also is provided with one and triggers spring 50; Said triggering spring 50 bung flanges are placed on the hinge that triggers screens device 52, and one of arm end that spring two stretches out contacts at follows the tracks of breach 55 places that rot 51 sidewall correspondences are offered, and the other end is then conflicted with 52 swing arms of triggering screens device.On tracking rot 51, also be provided with stop bit post 513, the rotational angle of limit trigger piece 53.
When anti-fall locating wheel 2 forward rotation (anti-fall locating wheel 2 anticlockwise rotations shown in Figure 4), follow the tracks of rot 51, trigger blocks 53 is together rotated with anti-fall locating wheel 2, does not influence the running orbit of brake component 3.When following the tracks of rot 51 with anti-fall locating wheel 2 backward rotation (anti-fall locating wheel 2 clockwises shown in Figure 4 rotate), the running orbit of constraint brake component 3 can outwards not enlarge.When following the tracks of rot 51 when anti-fall locating wheel 2 backward rotation and stopping, brake component 3 is outwards moved by the arris pushing tow of switch block 13 hook-shaped grooves, snap in the breaker slot 14, thus the rotation of pinning anti-fall locating wheel 2.
When scaffold slowly rises; Promote the power positive movement; Anti-fall locating wheel 2 forwards slowly rotate (anti-fall locating wheel 2 anticlockwise rotations shown in Figure 4), and drive brake component 3, automatic trigger 5 (follow the tracks of rot 51, triggering screens device 52, trigger blocks 53 and trigger spring 50 and U type spring 54) forward slowly rotate, and brake component 3 is under the switch block 13 of anti-fall locating wheel 2 wheel shaft ends drives; Can outwards not enlarge running orbit, support body slowly rises; If this moment, support body dropped suddenly; Then follow the tracks of rot 51 backward rotation immediately, the trigger blocks 53 of fitting with it is the trend that continuation is to the forward rotated in that effect of inertia is next, can not follow rapidly to follow the tracks of rot 51 and together react; Trigger blocks 53 produces reverse masterpiece and is used to trigger screens device 52; Cause triggering screens device 52 tops and snap in the position-arresting groove 11, follow the tracks of rot 51 and stop operating immediately, brake component 3 is outwards motion under the arris pushing tow of anti-fall locating wheel 2 wheel shaft end switch block 13 hook-shaped grooves; In the breaker slot 14 of top on flange 12; Anti-fall locating wheel 2 is blocked, and anti-fall locating wheel 2 blocks the cross bar 6 at the interval of guide rail 7, thereby realizes anti-fall purpose.
Perhaps, if this moment, manual trigger 4 was to be in open mode, just be in the state that rot 51 positive movements are followed the tracks of in manual trigger control; When support body drops suddenly, follow the tracks of rot 51 backward rotation and be stuck immediately, brake component 3 is outwards motion under anti-fall locating wheel 2 wheel shaft end switch blocks 13 hook-shaped trough rim rib pushing tows; Pushed up in the breaker slot 14 of flange 12; Anti-fall locating wheel 2 is blocked, block cross bar 6 at interval on the guide rail 7, realize anti-fall purpose.
When support body slowly descended, manual trigger 4 was in (disconnection) state of cutting out, and promoted the power reverse campaign; Anti-fall locating wheel 2 reverse slowly rotations (anti-fall locating wheel 2 clockwises shown in Figure 4 rotate); Drive brake component 3, automatic trigger 5 (follow the tracks of rot 51, triggering screens device 52, trigger blocks 53 and trigger spring 50 and U type spring 54) is reverse slowly to rotate, and brake component 3 is under the effect of tracking rot 51; Can outwards not enlarge running orbit, support body slowly descends; If this moment, support body dropped suddenly, then follow the tracks of rot 51 counter-rotational speed and accelerate immediately, likewise; Trigger blocks 53 speed under effect of inertia is slower than the rotating speed of anti-fall locating wheel 2 wheel shafts; Produce reverse masterpiece and be used to trigger screens device 52, can cause triggering in the position-arresting groove 11 that screens device 52 is stuck in centring ring 15, follow the tracks of rot 51 and be stuck; Brake component 3 is in outwards moving by the breaker slot 14 of top on flange 12 under the arris pushing tow of anti-fall locating wheel 2 wheel shaft end switch block 13 hook-shaped grooves; Anti-fall locating wheel 2 is blocked, and anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes anti-fall purpose.
When support body puts in place; Manual operations manual trigger 4; Tracking rot 51 is stuck, and the arris of the wheel shaft end switch block 13 hook-shaped grooves of anti-fall locating wheel 2 promotes brake component 3 and heads in the breaker slot 14 of flange 12, blocks the rotation of anti-fall locating wheel 2; Anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes the location of support body.
Embodiment two:
Present embodiment and embodiment one are basic identical; Different is; The arrangement of clutch of present embodiment is formed by manual trigger, automatic trigger and by the braking positioner that brake component and breaker slot constitute, and its structure and mutual collocation form are different with embodiment one.Present embodiment is to utilize the support body tenesmus to cause anti-fall locating wheel 2 reverse speeds to strengthen the device of centrifugal force increment triggering brake component 3 work of generation.As shown in Figure 8, said automatic trigger 5 is one and has the fixedly device of brake component 3 of certain dynamics, retrains the one-directional rotation of anti-fall locating wheel 2 through the turnover of manual trigger 4 hand-manipulated.Its concrete structure is: the axle bed sidewall at the anti-fall locating wheel 2 of guide bracket 1 is provided with a discoid flange 12; It is positioned at the end of anti-fall locating wheel 2 wheel shafts one end; Flange 12 contains an inner chamber, and the inner chamber periphery is evenly equipped with at least one breaker slot 14, and this breaker slot 14 is a laciniation.The wheel shaft end of anti-fall locating wheel 2 is columns, and wheel axle end surface radially offers straight elongated slot, and brake component 3 is installed in the groove, manual trigger 4 and automatic trigger 5; Wherein brake component 3 front ends are provided with and can snap in the interior projection of breaker slot 14, and the rear end links to each other with manual trigger 4; Manual trigger 4 be one can slippage in the wheel axle end surface straight elongated slot rod component, which is provided with automatic trigger 5, this automatic trigger 5 is a spring, is placed on the rod component of manual trigger 4.
When the scaffold support body slowly rises; Promote the power positive movement; Anti-fall locating wheel 2 forwards slowly rotate (2 anticlockwise rotations of anti-fall locating wheel shown in Figure 8), and simultaneously, drive brake component 3, manual trigger 4, automatic trigger 5 forwards slowly rotate; Brake component 3 can outwards not move under the spring force constraint of automatic trigger 5, and support body slowly rises; If support body drops suddenly; Then anti-fall locating wheel 2 is backward rotation (this moment, anti-fall locating wheel 2 clockwises rotated) immediately, and the centrifugal force of brake component 3 generations this moment will overcome the spring constraint power of automatic trigger 5 and outwards move, and brake component 3 is protruding; Snap in the breaker slot 14; Anti-fall locating wheel 2 is blocked, and anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes anti-fall purpose.
Perhaps; If this moment, manual trigger 4 was to be in open mode; Anti-fall locating wheel 2 forwards slowly rotate (anti-fall locating wheel 2 anticlockwise rotations shown in Figure 8); Because the directionality that the breaker slot 14 on the wheel shaft axle bed flange 12 on the guide bracket 1 is had, brake component 3 is done relative slip with flange 12 inner chambers, and support body slowly rises.If this moment, support body dropped suddenly, promptly change and destroyed balance between the two, brake component 3 is under centrifugal action; Immediately snap in the breaker slot 14 of flange 12; Anti-fall locating wheel 2 is blocked, and anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes anti-fall purpose.
When the scaffold support body slowly descends; Manual trigger 4 is in (disconnection) state of cutting out; Lifting power reverse campaign, anti-fall locating wheel 2 reverse slowly rotations (anti-fall locating wheel 2 clockwises shown in Figure 8 rotate) drive brake component 3, manual trigger 4, automatic trigger 5 reverse slowly rotations; Brake component 3 can outwards not move under the constraint of automatic trigger 5, and support body slowly descends; If this moment, support body dropped suddenly; Then anti-fall locating wheel 2 quickens to rotate immediately; The centrifugal force that brake component 3 produces overcomes the restraint forces of automatic trigger 5 and outwards moves, and snaps in the breaker slot 14 of flange 12, and anti-fall locating wheel 2 is blocked; Anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, has realized anti-fall purpose.
When support body put in place, manual trigger 4 hand-manipulated pushed brake component 3 in the breaker slot 14 of upper flange 12 and blocks anti-fall locating wheel 2, and anti-fall locating wheel 2 blocks on the guide rail 7 cross bar 6 at interval, the location of realizing support body.
Embodiment three:
Present embodiment and embodiment one, embodiment two are basic identical; Different is; The arrangement of clutch of present embodiment reaches the braking positioner that is made up of brake component and breaker slot by manual trigger, automatic trigger to be formed, and its structure and mutual collocation form are different with embodiment two with embodiment one.Present embodiment is that the speed increment that utilizes support body tenesmus to cause anti-fall locating wheel 2 reverse speeds to strengthen to be produced triggers brake component 3 conflict breaker slots 14 and anti-fall locating wheel 2 stopped operating realize anti-fall and location.As shown in Figure 9, brake component 3 is the balancing point of a chevron shaped structure, and its balance staff is fixed on the rotating shaft axle head of anti-fall locating wheel 2, and integral structure is adopted in the runner of anti-fall locating wheel 2 and rotating shaft.Automatic trigger 5 is an extension spring, and the one of which end is fixed on the brake component 3, and the other end is fixed in the rotating shaft of anti-fall locating wheel 2; Breaker slot 14 is the minor axis structure, and some are fixed on the rotating shaft axle head of said anti-fall locating wheel 2, and other has some to be fixed on the flange 12; Manual trigger 4 is a movable block, can fix in the rotating shaft of the anti-fall locating wheel 2 of artificial insertion.Automatic trigger 5, brake component 3 and breaker slot 14 all rotate with the rotating shaft of anti-fall locating wheel 2.
When the scaffold support body slowly rises; Close manual trigger (soon it is extracted from the rotating shaft axle head and is in off-state), promote the power positive movement, anti-fall locating wheel 2 forwards slowly rotate (anti-fall locating wheel 2 anticlockwise rotations shown in Figure 9); Simultaneously; Drive automatic trigger 5, brake component 3 and 14 forwards of the breaker slot in rotating shaft and slowly rotate, brake component 3 the spring force constraint of automatic trigger 5 down constantly clockwise swing and reset, support body slowly rises; If support body drops suddenly, then anti-fall locating wheel 2 is backward rotation (this moment, anti-fall locating wheel 2 clockwises rotated) immediately, the anticlockwise immediately swing of brake component 3 this moment; The one of which end props up the breaker slot 14 in said anti-fall locating wheel 2 rotating shafts; Stop swinging immediately, the other end props up the breaker slot 14 at flange cloth last week, and anti-fall locating wheel 2 is blocked; Anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes anti-fall purpose.
When the scaffold support body slowly descends; Close manual trigger (soon it is extracted from the rotating shaft axle head and is in off-state), promote the power reverse campaign, anti-fall locating wheel 2 reverse slowly rotations (2 clockwises rotations of anti-fall locating wheel shown in Figure 9); Simultaneously; Drive that automatic trigger 5, brake component 3 and the breaker slot in rotating shaft 14 are reverse slowly to rotate, brake component 3 constantly anticlockwise swing and resetting under the spring force constraint of automatic trigger 5, support body slowly descends; If support body drops suddenly, then anti-fall locating wheel 2 backward rotation speed up (this moment, anti-fall locating wheel 2 clockwises rotated), and this moment, brake component 3 anticlockwise swings had little time to reset; The one of which end props up the breaker slot 14 on the flange; Stop swinging immediately, the other end props up the breaker slot 14 on the anti-fall locating wheel 2 rotating shaft axle heads, and anti-fall locating wheel 2 is blocked; Anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes anti-fall purpose.
Shown in figure 10, when support body puts in place, fixing on the manual rotating shaft axle head with the anti-fall locating wheel 2 of manual trigger 4 insertions; Brake component 3 is blocked and can not swing; Just blocked anti-fall locating wheel 2, anti-fall locating wheel 2 blocks the cross bar 6 at interval on the guide rail 7, realizes the location of support body.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. runner drop proof positioning type elevating scaffold; Comprise guide bracket, guide rail, support body, Hoisting System and control system, said guide bracket is connected with said guide rail sliding sleeve, it is characterized in that; Said guide bracket is provided with anti-fall locating wheel; Said guide rail is provided with cross bar at interval, and the cross bar at said anti-fall locating wheel and said interval is connected with a joggle, and between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, is provided with arrangement of clutch;
Said arrangement of clutch is made up of manual trigger, automatic trigger, braking positioner;
Said braking positioner comprises brake component, breaker slot, centring ring and switch block, and the axle bed sidewall of said anti-fall locating wheel is provided with a cavity flange, in the flange cavity, is sequentially provided with the radial direction through hole of breaker slot and centring ring and installation manual trigger;
Said manual trigger is one to have the rod component of spring; Its axial line is vertical with anti-fall locating wheel rotating shaft; Place said flange side, the corresponding breaker slot of flange cavity center position is provided with the switch block that can cooperate with brake component, and said switch block is fixed in the rotating shaft of anti-fall locating wheel; Together rotate with anti-fall locating wheel, said switch block is provided with and can holds the hook-shaped groove that brake component gets into;
Said centring ring inwall offers at least one position-arresting groove, and said automatic trigger is arranged at corresponding flange cavity breaker slot and centring ring and radial direction through hole position;
Said automatic trigger forms by following the tracks of rot, triggering screens device, trigger blocks and triggering spring and U type spring assembly; Said U type spring is arranged between said tracking rot and the said switch block; Spring one end is connected with said switch block, and the spring other end is connected with said tracking rot; Said tracking rot is placed in the anti-fall locating wheel rotating shaft; Its corresponding centring ring and radial direction through hole position one side are cylindrical structures; One side of corresponding breaker slot is a projection, and the radial direction through hole position that said manual trigger is installed corresponding to the flange cavity in its cylindrical structure outside is provided with the zigzag projection; Said trigger blocks is placed in follows the tracks of on the interior axle of rot cylindrical structure, triggers the screens device and is arranged on the different axles of following the tracks of a side in the rot tube, and said triggering screens device and said trigger blocks contact; The corresponding said triggering screens device top perforate of said tracking rot barrel; Said triggering spring spiral is placed in the rotating shaft that triggers the screens device, and an arm of spring is conflicted and followed the tracks of rot tube wall opening place, and another arm is conflicted and triggered the swing arm of screens device; Said trigger blocks is axially fitted with said tracking rot, drives said trigger blocks by said tracking rot and rotates; Said triggering screens device can snap in through the perforate on the said tracking rot barrel in the position-arresting groove that correspondence is offered on the said centring ring.
2. a kind of rotating wheel falling prevention according to claim 1 location lifting false work is characterized in that, the cross bar at said interval or be the spline-simulating cross bar, or be the trellis piece of leaving over after the punching on the long slab, or be spaced apart column.
3. runner drop proof positioning type elevating scaffold; Comprise guide bracket, guide rail, support body, Hoisting System and control system, said guide bracket is connected with said guide rail sliding sleeve, it is characterized in that; Said guide bracket is provided with anti-fall locating wheel; Said guide rail is provided with cross bar at interval, and the cross bar at said anti-fall locating wheel and said interval is connected with a joggle, and between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, is provided with arrangement of clutch;
Said arrangement of clutch is made up of manual trigger, automatic trigger, braking positioner;
Said braking positioner comprises brake component and breaker slot, and the axle bed sidewall periphery of said anti-fall locating wheel is provided with breaker slot, and said breaker slot is a dentalation;
Said anti-fall locating wheel wheel body end face radially offers straight elongated slot; Said brake component, manual trigger and automatic trigger are arranged in the said straight elongated slot; Wherein the brake component front end is provided with the projection that can snap in said breaker slot; The rear end links to each other with manual trigger, said automatic trigger and manual trigger corresponding matching;
Said manual trigger be one can slippage in wheel body end face straight elongated slot rod component;
Said automatic trigger is a spring, is sheathed on the rod component of manual trigger.
4. a kind of runner drop proof positioning type elevating scaffold as claimed in claim 3 is characterized in that, the cross bar at said interval or be the spline-simulating cross bar, or trellis piece for leaving over after the punching on the long slab, or be spaced apart column.
5. runner drop proof positioning type elevating scaffold; Comprise guide bracket, guide rail, support body, Hoisting System and control system, said guide bracket is connected with said guide rail sliding sleeve, it is characterized in that; Said guide bracket is provided with anti-fall locating wheel; Said guide rail is provided with cross bar at interval, and the cross bar at said anti-fall locating wheel and said interval is connected with a joggle, and between the axle bed of said anti-fall locating wheel wheel body and said anti-fall locating wheel, is provided with arrangement of clutch;
Said arrangement of clutch is made up of manual trigger, automatic trigger, braking positioner;
Said braking positioner comprises brake component and breaker slot; The axle bed sidewall periphery of said anti-fall locating wheel and the axle head of wheel shaft are provided with breaker slot, and said breaker slot is a column structure;
Said anti-fall locating wheel wheel body end face is provided with the jack-post of decentraction, and said brake component is a balancing point structure, is socketed on this jack-post;
Said anti-fall locating wheel wheel body end face is provided with manual trigger and automatic trigger;
Said manual trigger is the rod component that can in wheel body end face axial groove, insert and extract;
Said automatic trigger is a spring, and the one of which end is fixed on the said anti-fall locating wheel wheel body end face, and an end links to each other with said brake component.
6. a kind of runner drop proof positioning type elevating scaffold as claimed in claim 5 is characterized in that, the cross bar at said interval or be the spline-simulating cross bar, or trellis piece for leaving over after the punching on the long slab, or be spaced apart column.
7. like the method for work of each described a kind of runner drop proof positioning type elevating scaffold of claim 1 to 6, it is characterized in that its job step is such:
When 1) support body promoted, manual trigger is in to be opened or closed condition, and power-equipment just changes, and support body slowly rises; Support body is shut down earlier after promoting and putting in place, by hand manual trigger is in open mode, power-equipment counter-rotating, support body location; Repeat said process, support body constantly promotes and locatees, through top layer;
When 2) support body descended, power-equipment just changeed earlier, support body is promoted a bit of back shut down, and by hand manual trigger was in closed condition, started the power-equipment counter-rotating, and support body slowly descends; After support body decline puts in place, shut down earlier, by hand manual trigger is in open mode, power-equipment continues to reverse, the support body location; Repeat said process, support body constantly descends and locatees, through bottom;
Its anti-fall and location be achieved in that scaffold slowly promote with slow decline process in; Support body tenesmus suddenly can cause anti-fall locating wheel to produce bigger backward rotation speed; Automatic trigger triggers the work of braking positioner; Make anti-fall locating wheel can not continue backward rotation, anti-fall locating wheel blocks the cross bar at the interval that is provided with on the guide rail, prevents that scaffold from continuing to fall; Support body descends when putting in place, opens manual trigger by hand, triggers the work of braking positioner, makes the anti-fall locating wheel can not backward rotation, and anti-fall locating wheel blocks the cross bar at the interval that is provided with on the guide rail, realizes the location of support body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100682575A CN101302890B (en) | 2008-06-30 | 2008-06-30 | Runner drop proof positioning type elevating scaffold and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100682575A CN101302890B (en) | 2008-06-30 | 2008-06-30 | Runner drop proof positioning type elevating scaffold and working method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101302890A CN101302890A (en) | 2008-11-12 |
| CN101302890B true CN101302890B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100682575A Expired - Fee Related CN101302890B (en) | 2008-06-30 | 2008-06-30 | Runner drop proof positioning type elevating scaffold and working method thereof |
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Cited By (1)
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| CN102720344A (en) * | 2012-06-09 | 2012-10-10 | 天津正宇重工科技有限公司 | Falling protecting device for rail-type lifting scaffold |
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| CN101929512B (en) * | 2010-09-09 | 2012-10-31 | 无锡市凯旋电机有限公司 | Full-automatic bidirectional clutch |
| CN102605942B (en) * | 2012-04-12 | 2014-11-05 | 四川省思培科技有限公司 | Falling protection device |
| CN102864923A (en) * | 2012-09-28 | 2013-01-09 | 陕西清坤建筑工程有限公司 | Falling-prevention device and falling-prevention method thereof |
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| CN109057310B (en) * | 2018-08-03 | 2020-11-17 | 华西工程科技(深圳)股份有限公司 | Falling protector for lifting scaffold |
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| CN111946043B (en) * | 2020-07-20 | 2022-07-05 | 西北工业大学 | Anti-falling device and method for attached self-lifting high-altitude sliding mode operation platform |
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| CN113482311B (en) * | 2021-06-29 | 2023-01-03 | 中交二公局第七工程有限公司 | Construction auxiliary mounting frame for green engineering construction |
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2008
- 2008-06-30 CN CN2008100682575A patent/CN101302890B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720344A (en) * | 2012-06-09 | 2012-10-10 | 天津正宇重工科技有限公司 | Falling protecting device for rail-type lifting scaffold |
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| CN101302890A (en) | 2008-11-12 |
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