CN202324581U

CN202324581U - Anti-falling safety device of integral lifting scaffold

Info

Publication number: CN202324581U
Application number: CN2011204363326U
Authority: CN
Inventors: 刘应杰; 王光军
Original assignee: CHONGQING JIANGONG SCAFFOLDING CO LTD
Current assignee: CHONGQING JIANGONG SCAFFOLDING CO LTD
Priority date: 2011-11-07
Filing date: 2011-11-07
Publication date: 2012-07-11
Anticipated expiration: 2021-11-07

Abstract

The utility model discloses an anti-falling safety device of an integral lifting scaffold. When the scaffold is in a descending state under the drive of an electric hoist, a fixed chain (a dead chain segment) in a lifting chain is connected with each anti-falling ejector rod through a steel wire rope or an iron wire, and the elastic forces of return springs of the anti-falling ejector rods are overcome, so that the anti-falling ejector rods can deflect towards the direction which is far away from anti-falling teeth, be disengaged from the anti-falling teeth and does not limit the movement of the anti-falling teeth any more. According to the utility model, when the scaffold descends, even the chain is fractured and is not stressed by loosing, the anti-falling ejector rods can deflect immediately for pushing against the anti-falling teeth, the scaffold can be prevented from falling continuously, and a safety protection role is played. The chain of the electric hoist is straightened due to stress, and the straightening force can drive the anti-falling ejector rods to move, so that the elastic forces of the return springs can be overcome, the anti-falling ejector rods can be disengaged from the anti-falling teeth and the scaffold can descend smoothly; and when the chain is fractured or is not stressed by loosing suddenly, the anti-falling ejector rods can drive the loose chain to deflect under the action of the return springs, the anti-falling ejector rods can return to the anti-falling position and the scaffold can be prevented from falling.

Description

The integral lifting scaffold falling-proof safety device

Technical field

The utility model relates to a kind of safeguard construction of integral lifting scaffold, especially when the decline of integral lifting scaffold, under the situation of cucurbit chain fracture suddenly, can prevent the safety device that integral lifting scaffold falls.

Background technology

At building field, especially middle-high building extensively adopts integral lifting scaffold (climbing frame) in construction; In the prior art; Be called " attaching decline scaffold ", application number in name and be in 00222196.6 the utility model patent file; Disclose a kind of by between monolithic welding, sheet and the sheet with the scaffold of the main frame of the typing chip trussed construction of bolted on connection and the typing chip trussed construction that uses in pairs; And with supporting and anti-fall anti-tilt device is connected with body of wall a plurality of adhering to; And the integral lifting scaffold formed such as electric block, anti-fall push rod, its anti-fall push rod relies on the elastic force of back-moving spring, withstands in the anti-fall tooth of main frame guide-track groove side; Anti-fall push rod prevents in the anti-fall tooth that through withstanding on main frame from toward lower slider, preventing that whole scaffold from down falling; Its anti-fall flip flop equipment by turnbuckle, quantitatively extend pull bar and little wire rope is formed.And scaffold at first lets electric block stressed when electric block drive to descend, and regulates turnbuckle again, makes each anti-fall push rod produce anti-fall and disengage with anti-fall tooth and do not have restriction, and scaffold can descend under the decline electric block drives smoothly.In the decline process that electric block drives; If the sling point on chain fracture suddenly or the main frame ruptures suddenly, then whole frame body is just inevitable down falls, and it quantitatively extends pull bar and under the effect of stage clip, up carries; Unclamp little wire rope; Perhaps little wire rope is broken, and anti-fall push rod withstands anti-fall under the effect of reset tension spring, prevents the scaffold tenesmus.The anti-fall flip flop equipment of this kind is when step-down operation; The workman usually exceeds the distance that quantitative elongation pull bar is up put forward under the effect of stage clip when adjusting anti-fall push rod deflection distance; Cause in that chain is lax when not stressing, back-moving spring can not reset to the position that heads on anti-fall tooth with anti-fall push rod.The present invention solves that the cucurbit chain slack does not stress or when rupturing, anti-fall push rod reset distance can be very big, bring convenience to workman's operation; Simultaneously also cancel the triggering spring and quantitatively extended draw rod device; Simplify the structure, when this suspension centre chain does not stress, anti-fall push rod reliable reset.

Summary of the invention

The utility model drives in the decline process at electric block to the integral lifting scaffold of prior art; Reset and change into by triggering spring fixed length distance, anti-fall push rod back-moving spring does not draw motionless partially chain (dead chain segment) and the integral lifting scaffold falling-proof safety device that resets when chain fracture or lax stressing.

The technical scheme of the utility model; The integral lifting scaffold falling-proof safety device; Comprise the main frame guide rail of integral lifting scaffold, anti-fall tooth, anti-fall push rod, back-moving spring, electric block, cucurbit chain, some anti-fall teeth are arranged on the side of main frame guide-track groove, anti-fall push rod under the effect of back-moving spring to anti-fall tooth deflection; The top of anti-fall push rod withstands in the anti-fall tooth, prevents that the main frame guide rail is toward lower slider; It is characterized in that: when said scaffold is in decline under electric block drives; Utilize the dead chain segment in the cucurbit chain to be connected with every anti-fall push rod; Overcome the elastic force of the back-moving spring of anti-fall push rod, anti-fall push rod and anti-fall tooth are disengaged and no longer limit moving down of anti-fall tooth.

Be further characterized in that: the anti-fall push rod below electric block, and between the dead chain segment drag-line is set; Between anti-fall push rod on electric block and the dead chain segment, anti-fall stay cord is set, each the anti-fall push rod above the electric block is connected with dead chain segment through anti-fall stay cord.

On anti-fall stay cord, screw-button is set, adjusts the length of anti-fall stay cord through the rotating screw button.

The utility model integral lifting scaffold falling-proof safety device with respect to prior art, has following characteristics:

1, scaffold is when descending; The chain of electric block is stressed and exceptionally straight, and the dead chain segment in the chain is connected with every anti-fall push rod, overcomes the elastic force of the back-moving spring of anti-fall push rod; Make anti-fall push rod to disengaging with anti-fall tooth, scaffold is descended smoothly away from the direction deflection of anti-fall tooth; And when chain fracture or lax not stressing, anti-fall push rod draws dead partially chain segment in the effect of back-moving spring elastic force, and anti-fall push rod is resetted, and the comparable prior art of distance that resets of anti-fall push rod is a lot of greatly, makes that anti-fall push rod can reliable reset.

2, cancelled quantitative elongation pull bar, simplified the structure with triggering spring.

Description of drawings

Fig. 1 three-dimensional structure diagram.

Fig. 2 is the structural representation that the utility model safety device chain does not stress.

Fig. 3 is that the utility model chain is in the stress structural representation.

The specific embodiment

In Fig. 1,2,3; The integral lifting scaffold falling-proof safety device of the utility model; The main frame guide rail 1, anti-fall tooth 2, anti-fall push rod 3, back-moving spring 4, electric block 5, chain 6, the chain suspension hook 7 that comprise integral lifting scaffold; Some anti-fall teeth 2 are arranged on the side of main frame guide rail 1, and to anti-fall tooth 2 deflections, the top of anti-fall push rod 3 withstands in the anti-fall tooth 2 anti-fall push rod 3 under the effect of back-moving spring 4; Prevent main frame guide rail 1 toward lower slider, and then prevent that whole scaffold from down falling; When descending; Electric block 5 is connected with the scaffold underframe through chain 6, chain suspension hook 7, and chain suspension hook 7 is arranged between two chains 6 (initiatively chain segment 62 and dead chain segment 61), under the driven by motor of electric block 5 as a movable pulley; Driving initiatively, chain segment 62 rises or descends; 7 corresponding rising or the declines of chain suspension hook drive the scaffold underframe up or move down, and realize the integral elevating of scaffold.Above as prior art, do not do further description at this.

The improvement of the utility model; Scaffold is in when descending under electric block 5 drives; Utilize the dead chain segment 61 of that root in the chain 6 to be connected with every anti-fall push rod 3; Overcome the elastic force of the back-moving spring 4 of anti-fall push rod 3, make anti-fall push rod 3, disengage with anti-fall tooth 2 and no longer limit moving of anti-fall tooth 2 to direction deflection away from anti-fall tooth 2; At this moment, anti-fall tooth 2 (whole scaffold) moves down under electric block 5 drives, and anti-fall push rod 3 no longer limits moving of anti-fall tooth 2.Described dead chain segment 61 is initiatively not descend with electric block 5, is motionless with respect to building; The chain suspension hook is arranged between active chain segment 62 and the dead chain segment 61; Initiatively chain segment 62 is under the driven by motor of electric block 5; Follow the just commentaries on classics (or counter-rotating) and past the transferring of motor, drive chain suspension hook 7 and move down, make dead chain segment 61 corresponding down elongations.

Anti-fall push rod 3 is many; As shown in the figure is three anti-fall push rods 3 that are arranged above and below, and the anti-fall push rod 3 below electric block 5 is because of dead chain segment 61 is passed near anti-fall push rod 3; Itself and the syndeton of dead chain segment 61; Be between anti-fall push rod 3 and dead chain segment 61, drag-line 8 to be set, drag-line 8 bundlees electric block 5 following anti-fall push rods 3 with dead chain segment 61, and dead chain segment 61 is exceptionally straight because of load-bearing when decline;, disengage and no longer limit anti-fall tooth 2 with anti-fall tooth 2 and move down anti-fall push rod 3 backward rotation through drag-line 8; Drag-line 8 specifically can be selected steel wire, iron wire etc. for use, binding easily, and dismantle easily, be separated from.Anti-fall push rod 3 on electric block 5; Its position is on electric block 5; And between the dead chain segment 61 certain distance is arranged; Between anti-fall push rod 3 on electric block 5 and the dead chain segment 61, anti-fall stay cord 9 is set, each the anti-fall push rod 3 above the electric block 5 is connected with dead chain segment 61 through anti-fall stay cord 9; Regulate the tension force of anti-fall stay cord 9 for ease; On anti-fall stay cord 9, screw-button 10 is set; Adjust the length of anti-fall stay cord 9 through rotating screw button 10; Guarantee that dead chain segment 61 is exceptionally straight because of load-bearing, can be with two, three, four above the electric block 5 (so that many) anti-fall push rods 3 counter-rotatings (backward rotation), disengage with anti-fall tooth 2 and no longer limit moving up and down of anti-fall tooth 2.Anti-fall stay cord 9 specifically can be selected steel wire, iron wire etc. for use, binding easily, and dismantle easily, be separated from.

The safety device of the utility model; When driving the scaffold rising with electric block 5 or descending, dead chain segment 61 is exceptionally straight because of load-bearing, and the drag-line 8 and the anti-fall stay cord 9 that are connected with dead chain segment 61 are stressed; Spur anti-fall push rod 3 backward rotation; Overcome the elastic force of the back-moving spring 4 of anti-fall push rod 3, make anti-fall push rod 3, disengage with anti-fall tooth 2 and no longer limit moving of anti-fall tooth 2 to direction deflection away from anti-fall tooth 2; Under this situation, can successfully realize the decline of scaffold.And in the decline process, in case the dead chain segment 61 of electric block 5 or active chain segment 62 fracture or loose not stressing, whole scaffold falls down; Dead chain segment 61 (comprising initiatively chain segment 62) does not stress, and the drag-line 8 and the anti-fall stay cord 9 that are connected with dead chain segment 61 do not stress equally, can not give anti-fall push rod 3 to the active force away from the direction deflection of anti-fall tooth 2; Anti-fall push rod 3 to the direction deflection of anti-fall tooth 2, is stuck in the anti-fall tooth 2 top of anti-fall push rod 3 under the effect of back-moving spring 4 elastic force; Stop main frame guide rail 1 again toward lower slider; And then stop whole scaffold down to fall, play the effect of security protection, under the extreme case of dead chain segment 61 or initiatively chain segment 62 fractures; Still can produce the security protection effect, stop whole scaffold down to fall.

Claims

1. integral lifting scaffold falling-proof safety device; Comprise the main frame guide rail (1) of integral lifting scaffold, anti-fall tooth (2), anti-fall push rod (3), back-moving spring (4), electric block (5), chain (6) and chain suspension hook (7); Some anti-fall teeth (2) are arranged on the side of main frame guide rail (1), and anti-fall push rod (3) top under the effect of back-moving spring (4) withstands in the anti-fall tooth (2); It is characterized in that: when said scaffold is in decline under electric block (5) drives; Utilize the dead chain segment (61) in the chain (6) to be connected with every anti-fall push rod (3); Overcome the elastic force of the back-moving spring (4) of anti-fall push rod (3); Make anti-fall push rod (3) to direction deflection, disengage with anti-fall tooth (2) and no longer limit moving of anti-fall tooth (2) away from anti-fall tooth (2).

2. integral lifting scaffold falling-proof safety device according to claim 1 is characterized in that: the anti-fall push rod (3) below electric block (5), and drag-line (8) is set between the dead chain segment (61).

3. integral lifting scaffold falling-proof safety device according to claim 1 and 2; It is characterized in that: between anti-fall push rod (3) on electric block (5) and the dead chain segment (61); Anti-fall stay cord (9) is set, each the anti-fall push rod (3) above the electric block (5) is connected with dead chain segment (61) through anti-fall stay cord (9).

4. integral lifting scaffold falling-proof safety device according to claim 3 is characterized in that: screw-button (10) is set on anti-fall stay cord (9), adjusts the length of anti-fall stay cord (9) through rotating screw button (10).