CN205804919U - Anti-dumping anti-fall device - Google Patents

Abstract

The utility model discloses a kind of anti-dumping anti-fall device for scaffold, including I-steel, supporting box and anti-fall taking turns of being located in supporting box, ratchet and pawl, I-steel side is provided with row's double wedge uniformly, anti-fall wheel is engaged with double wedge, the axle of ratchet and anti-fall wheel are fixedly linked and are connected on supporting box, ratchet is fork-shaped, the ratchet top of fork-shaped is located on the anti-fall supporting box taking turns top by bearing pin, two fork-shaped teeth of ratchet lower end are engaged with anti-fall wheel respectively, front fork tooth is longer than rear fork-shaped tooth, between front fork tooth lower end and supporting box, the stretching spring by being obliquely installed is connected, ratchet top is connected with supporting box by torsionspring, supporting box outer casing bottom is provided with transverse support bar, transverse support bar left end is provided with the directive wheel being engaged mutually with I-steel grooves on two sides.It is anti-fall that this device can be effectively used for scaffold, its simple in construction, safe and reliable, and anti-fall wheel is all detachable with anti-tilt device, it is simple to changing, use cost is low.

Description

Anti-dumping anti-fall device

Technical field

This utility model belongs to scaffold device field, is specifically related to a kind of anti-dumping anti-fall device for scaffold.

Background technology

Monoblock type attached scaffold anti-dumping anti-fall device is supporting box system when in use there is accidental falling Dynamic device.Scaffold anti-dumping anti-fall device, as last one security perimeter of attaching scaffold, is not only able to impact attachment The popularization of formula scaffold, is more related to the property life security of workmen.Therefore it is badly in need of a kind of reliable and stable for foot hands Frame anti-dumping anti-fall device.

Utility model content

In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is:

This utility model relates to a kind of scaffold anti-dumping anti-fall device using ratchet-type structure and designs.

A kind of anti-dumping anti-fall device for scaffold, it is characterised in that: include I-steel, supporting box and be located at Anti-fall taking turns in support casing, ratchet and pawl, described I-steel side is provided with row's double wedge uniformly, described anti-fall takes turns and double wedge Occlusion, the axle of described ratchet and anti-fall wheel are fixedly linked and are connected on supporting box, and described ratchet is fork-shaped, the ratchet of fork-shaped Top is located on the anti-fall supporting box taking turns top by bearing pin, and two fork-shaped teeth of ratchet lower end are engaged with anti-fall wheel respectively, Along ratchet normal rotation direction, the front fork tooth of ratchet lower end is longer than rear fork-shaped tooth, logical between front fork tooth and supporting box Crossing the stretching spring being obliquely installed to be connected, ratchet top is connected with supporting box by torsionspring, described supporting box shell Be connected with I-steel body by anti-tilt device, described anti-tilt device include with the transverse support bar being connected bottom supporting box and Being located at the directive wheel of transverse support bar left end, described directive wheel has two groups, and two groups of directive wheels are distributed between I-steel two wing plate Waist groove in.

As improvement, described ratchet has 1-4 in the axial arrangement of bearing pin, its quantity, described torsionspring and stretching bullet The quantity of spring matches with number of pawls.

As improvement, described often group directive wheel has multiple, the multiple directive wheel vertical directions arrangement often organized.

This utility model provides the benefit that:

This utility model is applicable to various emergency situations, safe and reliable.A scaffold unit can be arranged with many places This device, each device is separate, and any one inefficacy can also be the most anti-fall, safe and reliable.And simple in construction, anti- Pendant wheel and anti-tilt device are all detachable, it is simple to the replacing after damage, reduce use cost.The anti-fall braking distance of this device is relatively Short, the least anti-fall can take turns impact load, extend the anti-fall service life taken turns.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram.

Fig. 2 is anti-fall device structural representation.

Reference: 1-I-steel, 2-ratchet bearing, the anti-fall wheel bearing of 3-, 4-transverse support bar, the anti-fall axle end of 5- Lid, 6-supporting box, 7-ratchet bearing bearing (ball) cover, 8-stretches spring, 9-pawl axis, 10-ratchet, and 11-is anti-fall to take turns, and 12-prevents Pendant wheel shaft, 13 torsionsprings, 14-double wedge, 15-front fork tooth, fork-shaped tooth after 16-, 17-ratchet.

Detailed description of the invention

This device by supporting box 6, anti-tilt device, by anti-fall taking turns 11, anti-fall wheel shaft 12, anti-fall wheel bearing 3, anti-fall wheel shaft End cap 5 and I-steel 1 form, as shown in Fig. 1 and 2.Anti-fall take turns 11 and be axially fixed on anti-fall wheel shaft 12 by key, anti-fall Wheel shaft 12 is fixed on supporting box 6 by anti-fall wheel bearing 3, and anti-fall wheel shaft end cap 5 fixing seal is passed through at two ends, the most anti-fall Wheel 11 can rotate with anti-fall wheel shaft 12.Another part of anti-fall wheel bearing 3 is by ratchet 10, pawl axis 9, stretching spring 8, torsion Spring 13, pawl axis end cap 7, ratchet bearing 2 form.Ratchet 10 is fixed on pawl axis 9 by key pawl axis sleeve, stretches bullet Spring 8 can provide, to ratchet 10, the pulling force resetted.

Anti-tilt device operation principle: anti-tilt device is bolted the both sides at supporting box 6, detachable design It is easy to the fixed and positioned of anti-tilt device.Two directive wheels of anti-tilt device embed the waist groove between 1 liang of wing plate of I-steel, Prevent scaffold from tilting.

Anti-dumping anti-fall device operation principle: anti-fall take turns 11 and I-steel 1 on double wedge 14 be connected (as shown in Figure 2), Time when being in locking under ratchet 10 and the anti-fall occlusion taking turns 11 both sides ratchets 17, anti-fall take turns 11 with I-steel 1 wing plate Contact between upper equally distributed double wedge 14, thus limit attached scaffold decline in perpendicular；When ratchet 10 is drawing Stretching when resetting under the effect of spring 8, the anti-fall ratchet 17 taking turns 11 both sides no longer contacts with ratchet 10, and I-steel 1 is at lifting process In can drive and anti-fall take turns 11 idle running.When scaffold rapid decrease or when falling, double wedge 14 takes turns, with anti-fall, the energy that 11 collisions produce Relatively big, anti-fall take turns 11 and can produce bigger rotation, now prevent ratchet 10 and ratchet 17 from engaging, draw high spring 8 and be not able to do in time Being resetted by ratchet 10, ratchet 10 is just stuck by ratchet 17, anti-fall take turns 11 cannot rotate holding static, double wedge 14 is taken turns 11 cards by anti-fall Living, scaffold stops tenesmus, plays the effect of anti-falling protection；When scaffold I-steel 1 normally slowly rises, double wedge 14 is with anti- Pendant wheel 11 contact after, anti-fall take turns 11 under the impetus of double wedge 14 rotate, when double wedge 14 turn over anti-fall take turns 11 after, ratchet 17 exists Resetting under the effect of torsionspring 13, complete once to rotate, then another double wedge 14 is taken turns 11 come in contact pushing with anti-fall again, Repeating this process, double wedge 14 will constantly slowly move up；When scaffold I-steel 1 descending at slow speed, the double wedge 14 in motion Take turns after 11 generations push and contact with anti-fall, owing to the speed of I-steel 1 is relatively slow, double wedge 14 and the anti-fall energy taking turns 11 collisions generations Less, ratchet 17 promotes ratchet 10 that the rotation of smaller angle clockwise occurs in perpendicular, when double wedge 14 crosses anti-fall wheel After 11, ratchet 10 resets under the effect drawing high spring 8, completes once to rotate, and repeats this process, and the double wedge 14 of I-steel 1 will Slowly decline.

Claims (3)

1. the anti-dumping anti-fall device for scaffold, it is characterised in that: include I-steel (1), supporting box (6) and set Anti-fall in supporting box (6) takes turns (11), ratchet (17) and ratchet (10), and described I-steel (1) side is provided with one uniformly Row's double wedge (14), described anti-fall take turns (11) are engaged with double wedge (14), and the axle of described ratchet (17) is fixedly linked with anti-fall take turns (11) And be connected on supporting box (6), described ratchet (10) is fork-shaped, and anti-fall wheel is located at by bearing pin in ratchet (10) top of fork-shaped (11), on the supporting box (6) of top, two fork-shaped teeth of ratchet (10) lower end are taken turns (11) respectively and are engaged, along ratchet with anti-fall (17) normal rotation direction, the front fork tooth (15) of ratchet (10) lower end is longer than rear fork-shaped tooth (16), front fork tooth (15) lower end Be connected by the stretching spring (8) that is obliquely installed with between supporting box (6), ratchet (10) top by torsionspring (13) and Supporting box (6) is connected, and described supporting box (6) shell is connected with I-steel (1) body by anti-tilt device, and described anti-dumping fills Put and include the transverse support bar (4) being connected with supporting box (6) bottom and the directive wheel being located at transverse support bar (4) left end, institute Stating directive wheel and have two groups, two groups of directive wheels are distributed in the waist groove between I-steel (1) two wing plate.

2. anti-dumping anti-fall device as claimed in claim 1, it is characterised in that: described ratchet (10) arranges in the axial of bearing pin, its Quantity has 1-4, and the quantity of described torsionspring (13) and stretching spring (8) matches with ratchet (10) quantity.

3. anti-dumping anti-fall device as claimed in claim 1, it is characterised in that: described often group directive wheel has multiple, and that often organizes is multiple Directive wheel vertical direction arranges.