CN213837665U

CN213837665U - Anti-falling device for all-steel integrated lifting scaffold

Info

Publication number: CN213837665U
Application number: CN202022064733.5U
Authority: CN
Inventors: 黄晓忠; 黄坤
Original assignee: Chongqing Dunxin Scaffold Co ltd
Current assignee: Chongqing Dunxin Scaffold Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-07-30
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses an all-steel integrated lifting scaffold anti-falling device, which comprises a wall-attached support fixed on a building, an anti-falling top plate rotationally connected with the wall-attached support and used for supporting anti-falling teeth when the scaffold falls down, a reset spring used for driving the anti-falling top plate to reset and an anti-falling auxiliary pendulum arranged on the anti-falling top plate; the anti-falling auxiliary pendulum is made of a torsion spring; one support leg of the torsion spring is connected to the anti-falling top plate, and the other support leg extends outwards and is used for interfering with the anti-falling teeth of the scaffold; the anti-falling auxiliary pendulum of the device is different from a common rigid auxiliary pendulum structure, is made of a torsion spring, has large yielding space, reduces the design precision requirement of the device, and can not be blocked and can not normally descend due to structural deformation and errors in the normal descending process of the frame body.

Description

Anti-falling device for all-steel integrated lifting scaffold

Technical Field

The utility model relates to a scaffold frame prevents weighing down the field, in particular to integrated lift scaffold frame anti-falling device of all steel.

Background

The attached lifting scaffold is used as an advanced auxiliary construction facility for high-rise building construction, and is increasingly popularized in construction sites. Compared with the traditional floor scaffold and the overhanging scaffold, the scaffold has the advantages of small occupied space, material saving and the like. However, due to the short application time, the product has different defects in design, wherein the largest potential safety hazard is that the shelf body falls. In the prior art, a safety hook is usually arranged on a building, for example, chinese patent document CN206279751U discloses a safety hook device of an attached lifting scaffold, which comprises a safety hook block and a safety hook sub-hook, wherein the safety hook sub-hook has a shape including a circular ring structure and a convex strip structure, when the convex strip structure of the safety hook sub-hook receives a thrust from a positioning rod, the safety hook sub-hook rotates to transmit the thrust to the safety hook block until the surface of the safety hook block is horizontal to support the positioning rod, thereby preventing the wall-attached guide rail from continuously falling down; therefore, the auxiliary pendulum in the anti-falling device in the prior art is of a rigid structure, the yielding space of the auxiliary pendulum is small, high manufacturing and mounting precision needs to be guaranteed, the frame body is easy to block and cannot normally descend when structural deformation and errors occur, the cost is high, and the universality is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an integrated lift scaffold anti-falling device of all steel, this prevent weighing down vice pendulum adopts and turns round the spring, is different from the vice pendulum structure of rigidity commonly used, because elastic action, the space of letting back of vice pendulum is big, reduces to the design accuracy requirement of device, and the support body can not be blocked and can not normally descend because of the reason of structural deformation and error at normal decline in-process.

The utility model discloses an all-steel integrated lifting scaffold anti-falling device, which comprises a wall-attached support fixed on a building, an anti-falling top plate rotationally connected to the wall-attached support and used for supporting anti-falling teeth when the scaffold falls down, a reset spring used for driving the anti-falling top plate to reset and an anti-falling auxiliary pendulum arranged on the anti-falling top plate; the anti-falling auxiliary pendulum is made of a torsion spring; one support leg of the torsion spring is connected to the anti-falling top plate, and the other support leg extends outwards and is used for interfering with the anti-falling teeth of the scaffold;

furthermore, the anti-falling top plate comprises a plate body, a shaft sleeve fixed at the inner end of the plate body and a torsion spring mounting seat fixed on the outer wall of the shaft sleeve; the shaft sleeve is used for being matched with a rotating shaft on the wall-attached support; the torsion spring mounting seat comprises two support lugs and a pin shaft fixed between the two support lugs; the torsion spring is sleeved outside the pin shaft, and one supporting leg of the torsion spring is clamped in the torsion spring mounting hole on the supporting lug.

Furthermore, the torsion spring mounting holes are coaxially distributed with a plurality of torsion spring mounting holes around the axis of the pin shaft.

The utility model has the advantages that:

the utility model provides a prevent weighing down vice pendulum adopts and turns round the spring, because it has the elastic action to turn round the spring, the space of letting back of vice pendulum is big, lowers to the holistic design accuracy requirement of device, and the support body can not be normally down because of the reason of structural deformation and error is blocked at the normal decline in-process.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic structural view of the anti-falling device of the present invention;

FIG. 2 is a schematic view of the scaffold in an elevated condition;

FIG. 3 is a schematic view of the operation of the stand in a lowered condition;

FIG. 4 is a schematic view of the scaffold in a fall condition;

fig. 5 is a schematic view illustrating the installation of a torsion spring according to a second embodiment of the present invention.

Detailed Description

Example one

As shown in the figure, the all-steel integrated lifting scaffold anti-falling device of the embodiment comprises an attached wall support 7 fixed on a building, an anti-falling top plate 1 rotatably connected to the attached wall support 7 and used for supporting an anti-falling tooth 2 when the scaffold falls down, a reset spring used for driving the anti-falling top plate 1 to reset, and an anti-falling auxiliary pendulum arranged on the anti-falling top plate 1; the anti-falling auxiliary pendulum is made of a torsion spring 3; one support leg of the torsion spring 3 is connected to the anti-falling top plate 1, and the other support leg extends outwards and is used for interfering with the anti-falling teeth 2 of the scaffold;

the anti-falling teeth 2 are uniformly distributed on the scaffold along the vertical direction, and a vertical slideway is fixedly arranged on the scaffold; the wall-attached support 7 can be fixedly provided with a guide post which is in sliding fit with the slide way, so that the distance between the wall-attached support and the anti-falling device is kept unchanged when the scaffold is lifted or lowered. The wall-attached support 7 is rotatably provided with a support column 8 and an anti-falling top plate 1; the support column 8 can rotate to support the anti-falling teeth 2; when the whole scaffold is required to be lifted, the supporting column 1 can be rotated to be separated from the anti-falling teeth 2.

The anti-falling top plate 1 comprises a plate body, a shaft sleeve 6 fixed at the inner end of the plate body and a torsion spring mounting seat 4 fixed on the outer wall of the shaft sleeve; the shaft sleeve 6 is used for being matched with the rotating shaft 5 on the wall-attached support 7; the torsion spring mounting seat 4 comprises two support lugs 10 and a pin shaft 9 fixed between the two support lugs 10; the torsion spring 3 is sleeved outside the pin shaft 9, and one support leg of the torsion spring is clamped in the torsion spring mounting hole 11 on the support lug 10; the other leg extends outwardly for interference with the anti-fall tooth 2 of the scaffold. When the scaffold needs to be lifted normally, the support column 8 is separated from the anti-falling teeth 2, so that the scaffold is not hindered from lifting. The anti-falling pendulum is rotatably connected to the wall-attached support 7 through the rotating shaft, when the frame body of the lifting scaffold falls slowly, the anti-falling tooth 2 is in contact with the anti-falling auxiliary pendulum on the anti-falling device, the anti-falling auxiliary pendulum drives the anti-falling top plate 1 to slowly rotate to a certain angle towards the anti-falling tooth 2 side, and the anti-falling top plate 1 is reset under the driving of the reset spring (the reset spring can be connected between the wall-attached support 7 and the anti-falling top plate 1 by adopting a torsion spring or a spiral spring) when not in contact with the anti-falling tooth 2 due to the slow rotating speed, so that the frame body of the lifting scaffold is ensured to descend smoothly; if the scaffold falls in the descending process, the anti-falling teeth 2 are contacted with the support legs extending outwards from the torsion springs 3, so that the anti-falling top plate 1 rotates towards the anti-falling teeth 2 quickly, and the anti-falling top plate 1 is not reset to be clamped into the anti-falling teeth 2 because of the high rotating speed, and the lifting scaffold is prevented from falling.

Example two

In the first embodiment, the inner leg of the torsion spring 3 as the anti-falling auxiliary pendulum is directly clamped into the mounting hole 11 on the support lug 10 of the torsion spring mounting seat (only one mounting hole 11 is arranged in the first embodiment); in the embodiment, four mounting holes 11 are coaxially distributed on the support lug of the torsion spring mounting seat around the axis of the pin shaft, and the four mounting holes 11 are connected through an arc-shaped groove; during the use, can the manpower pull the stabilizer blade of torsion spring 3 and slide in the arc wall and block in a certain mounting hole 11 to can realize the regulation of torsion spring 3 position, and then adjust the angle of the overhanging stabilizer blade of torsion spring 3 and with prevent weighing down the interference volume of tooth 2, finally realize that the anti-falling device produces the regulation of preventing weighing down the required critical speed (the speed of weighing down of scaffold frame) of effect.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an integrated lift scaffold anti-falling device of all steel which characterized in that: the anti-falling device comprises an attached wall support fixed on a building, an anti-falling top plate, a reset spring and an anti-falling auxiliary pendulum, wherein the anti-falling top plate is rotatably connected to the attached wall support and used for supporting anti-falling teeth when a scaffold falls down; the anti-falling auxiliary pendulum is made of a torsion spring; one support leg of the torsion spring is connected to the anti-falling top plate, and the other support leg extends outwards and is used for interfering with the anti-falling teeth of the scaffold.

2. The all-steel integrated lifting scaffold falling prevention device of claim 1, which is characterized in that: the anti-falling top plate comprises a plate body, a shaft sleeve fixed at the inner end of the plate body and a torsion spring mounting seat fixed on the outer wall of the shaft sleeve; the shaft sleeve is used for being matched with a rotating shaft on the wall-attached support; the torsion spring mounting seat comprises two support lugs and a pin shaft fixed between the two support lugs; the torsion spring is sleeved outside the pin shaft, and one supporting leg of the torsion spring is clamped in the torsion spring mounting hole on the supporting lug.

3. The all-steel integrated lifting scaffold falling prevention device of claim 2, characterized in that: the torsional spring mounting holes are coaxially distributed with a plurality of torsional spring mounting holes around the axis of the pin shaft.