CN113653351B

CN113653351B - Safety protection device at bottom of steel construction pocket is encorbelmented greatly to large-span

Info

Publication number: CN113653351B
Application number: CN202110893978.5A
Authority: CN
Inventors: 石文井; 陈都; 赵文; 王秋丽; 顾海然; 毛福军
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-08-30
Anticipated expiration: 2041-08-05
Also published as: CN113653351A

Abstract

The invention provides a large-span large-cantilever steel structure pocket bottom safety protection device, which comprises a guide rail, a guide rail and a guide rail, wherein the guide rail is fixedly connected to a steel structure through a connecting assembly; the hook assembly comprises a U-shaped clamp and a hook, wherein the opening of the U-shaped clamp faces a guide rail, at least one extension spring is connected between the openings, two ends of the extension spring are fixedly connected to two limbs of the U-shaped clamp, two limbs of the U-shaped clamp are in contraposition rotation connection with a pair of dumbbell-shaped rollers, the extension spring provides tension force for oppositely clamping the pair of dumbbell-shaped rollers towards the guide rail, and the hook is rotatably connected to one side of the U-shaped clamp, which faces away from the opening. The horizontal pocket net can be conveniently mounted and dismounted, is small in size and easy to collect, collect and store.

Description

Safety protection device at bottom of steel construction pocket is encorbelmented greatly to large-span

Technical Field

The invention relates to the technical field of building construction, in particular to a large-span large-cantilever steel structure bottom-pocket safety protection device.

Background

In the steel construction process of encorbelmenting greatly of large-span, need hang in every layer of structural plane below and establish horizontal pocket net, horizontal pocket net mainly used prevents that top object construction drops and pounces construction operation personnel below, also is used for preventing simultaneously that personnel from the eminence directly dropping the condition emergence on the earth. In the prior art, the hanging method of the horizontal pocket net mainly adopts a strapping method, namely, the horizontal pocket net is directly tied on a structural plane to realize hanging, but the method has higher difficulty in the construction of detaching and replacing the pocket net and is dangerous for workers in high-altitude operation construction.

Therefore, need provide a steel construction pocket bottom safety device that encorbelments greatly of large-span, can easy to assemble and dismantle horizontal pocket net.

Disclosure of Invention

The invention aims to overcome the technical defects and provides a large-span large-cantilever steel structure pocket bottom safety protection device which can be used for conveniently mounting and dismounting a horizontal pocket net.

The technical scheme for realizing the purpose is as follows:

the invention provides a large-span large-overhang steel structure bottom-pocket safety protection device, which comprises:

the guide rail is fixedly connected to the steel structure through a connecting assembly;

the hook component comprises a U-shaped clamp and a hook, wherein the opening of the U-shaped clamp faces the guide rail, at least one extension spring is connected between the openings, two ends of the extension spring are fixedly connected with two limbs of the U-shaped clamp, two limbs of the U-shaped clamp are in contraposition rotation to connect a pair of dumbbell-shaped rollers, the extension spring provides a pair of dumbbell-shaped rollers, the dumbbell-shaped rollers face the guide rail to clamp pulling force oppositely, and the hook is in rotary connection with the U-shaped clamp back to one side of the opening.

The safety protection device for the large-span and large-cantilever steel structure pocket bottom is further improved in that the guide rail is a steel wire rope.

The invention further provides a further improvement of the large-span large-cantilever steel structure pocket bottom safety protection device, wherein the connecting assembly comprises a pipe clamp and a connecting rod, the pipe clamp hoop is used for fixing the steel wire rope, a first screw hole is formed in the lap joint part of the pipe clamp, one end of the connecting rod is fixedly connected with the steel structure, a lap joint is arranged at the other end of the connecting rod, a second screw hole is formed in the lap joint, and a fastening bolt penetrates through the first screw hole and the second screw hole.

The safety protection device for the bottom of the large-span large-cantilever steel structure pocket has the beneficial effects that:

a pair of dumbbell type gyro wheel on with two limbs of U type clamp is pressed from both sides tightly in opposite directions towards the guide rail through the extension spring of couple subassembly, and the guide rail is fixed in the steel construction through the coupling assembling that is equipped with the pipe strap, and the couple rotates to be connected in U type clamp to realize easy to assemble and dismantle the function that horizontal pocket was netted.

Drawings

Fig. 1 is a schematic perspective view of the safety protection device for the bottom of the large-span large-cantilever steel structure pocket.

FIG. 2 is a side view of the large-span large-overhang steel structure bottom-pocket safety protection device of the invention.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1 to 2, the present invention provides a large-span large-overhang steel structure bottom safety protection device, including:

the guide rail 10 is fixedly connected to the steel structure through a connecting assembly 20;

the hook assembly 30 comprises a U-shaped clamp 31 and a hook 32, wherein an opening of the U-shaped clamp 31 faces the guide rail 10, at least one extension spring 33 is connected between the openings, two ends of the extension spring 33 are fixedly connected to two limbs of the U-shaped clamp 31, a pair of dumbbell-shaped rollers 34 are connected to the two limbs of the U-shaped clamp 31 in an aligned rotating mode, the extension spring 33 provides a pulling force for clamping the pair of dumbbell-shaped rollers 34 towards the guide rail 10 in an opposite mode, and the hook 32 is connected to one side, opposite to the opening, of the U-shaped clamp 31 in a rotating mode.

In this embodiment, in actual work progress, use a plurality of foretell safety device according to the actual dimensions of horizontal pocket net, guide rail 10 generally sets up in pairs as required, and a plurality of safety device locate the position that horizontal pocket net articulated on guide rail 10, and guide rail 10 is connected in the structural plane below through a plurality of coupling assembling 20 to replace the mode of tying up the connection, it is very convenient to use.

As a preferred embodiment of the large-span large-overhang steel structure pocket bottom safety protection device of the present invention, the connecting assembly 20 includes a pipe clamp 21 and a connecting rod 22, the pipe clamp 21 is fixed to the rail 10 by hoop fastening, a first screw hole is formed in a lap joint portion 211 of the pipe clamp 21, one end of the connecting rod 22 is fixedly connected to the steel structure, a lap joint 221 is formed at the other end of the connecting rod 22, a second screw hole is formed in the lap joint 221, and fastening bolts (not shown) are inserted into the first screw hole and the second screw hole.

The invention provides a large-span large-cantilever steel structure pocket bottom safety protection device which is explained in detail by a specific embodiment as follows:

in this embodiment, the preferred, guide rail 10 adopts wire rope, and wire rope's intensity and size correspond and set up, and on the one hand, wire rope's flexibility can promote to some extent the buffer capacity of horizontal pocket net, also convenient adjustment, and on the other hand, wire rope also possesses certain toughness, can guarantee the atress performance of junction. In addition, the section of the steel wire rope is circular, so that the steel wire rope can be conveniently and tightly connected with the pipe clamp 21 of the connecting component 20. The guide rails 10 are arranged along the edge of the steel structure, preferably on both sides below the steel structure, to ensure that the horizontal nets connected subsequently can cover the planar space below the structure surface effectively.

In this embodiment, the connecting assembly 20 is made of metal, preferably steel, and the connecting rod 22 is a vertical rod, and the size is customized as required. Preferably, the inner diameter of the snap ring 21 matches the outer diameter of the steel cable of the guide rail 10, so as to be tightly connected with the guide rail 10.

In this embodiment, overlap joint portion 211 corresponds with overlap joint 221 and sets up the through-hole, and through-hole size phase-match between them is good, later, thereby wears to establish two parts through fastening bolt and screws up and realize demountable installation, and is very convenient.

In this embodiment, the U-shaped clamp 31, the hook 32 and the dumbbell roller 34 are made of metal, the U-shaped clamp 31 is integrally formed by round steel, or may be formed by welding multiple segments, each dumbbell roller 34 is inserted into one leg of the U-shaped clamp 31 and is rotatably connected thereto, in this embodiment, in order to ensure reliable connection when selecting the size of the dumbbell roller 34, the groove 341 of the dumbbell roller 34 should be matched with the outer edge of the guide rail 10, and particularly, it is preferable that the pair of dumbbell rollers 34 can be wrapped around both sides of the guide rail 10, and the space formed by wrapping the pair of dumbbell rollers 34 can be penetrated by the guide rail 10, and in this embodiment, at least one tension spring 33 is connected between the openings of the U-shaped clamps 31, the tension spring 33 provides a pulling force for clamping a pair of dumbbell-shaped rollers 34 towards the guide rails 10, so as to ensure that the pair of dumbbell-shaped rollers 34 can be clamped and fixed on the guide rail 10 without rolling back and forth. Of course, the fixing firmness degree also needs to be adjusted according to actual needs. When in use, the pair of dumbbell rollers 34 are broken to both sides, and the guide rail 10 is disposed between the grooves 341 of the pair of dumbbell rollers 34, and then the pair of dumbbell rollers 34 is released to be quickly restored by the contraction force of the extension spring 33, thereby clamping the outer edges of both sides of the guide rail 10.

In this embodiment, U type clamp 31 is rotated to open-ended one side dorsad and is connected a couple 34, couple 34 adopts the metal couple material equally, can be through seting up the through-hole in U type clamp 31 dorsad open-ended one side, establish rolling bearing in the through-hole, rolling bearing realizes with couple 34 fixed connection's mode that couple 34 rotates with connecting plate 33 to be connected, in addition, also can be through seting up the screw thread and passing the through-hole with the top straightway of couple 34, and twist the screw fixation through both ends and realize rotating connection, connect in U type clamp 31 through rotating couple 34, thereby make things convenient for couple 34 to carry out the adjustment that corresponds according to the concrete requirement that articulates the position, can make things convenient for nimble fixed horizontal pocket net.

The use method of the bottom-mounting safety protection device of the large-span large-cantilever steel structure is explained as follows:

the method comprises the following steps: firstly, the guide rail 10 penetrates through a pair of dumbbell-shaped rollers 34 of the hook assembly 30 to reach a desired distance by means of external force, the external force is removed, and the contraction force of the extension spring 33 clamps the dumbbell-shaped rollers 34 towards the guide rail 10 to oppositely clamp the guide rail 10 so as to realize fixation;

step two: after the connection between the hook assembly 30 and the guide rail 10 is completed, the guide rail 10 is clamped in the pipe clamp 21 of the connecting assembly 20, and one end of the pipe clamp 21 is detachably connected with the connecting rod 22;

step three: the other end of the connecting piece 22 is connected with a steel structure, and after the safety protection devices with a plurality of positions meeting the requirements are installed in the way, the position of the hook 34 is adjusted in a rotating mode, and the horizontal tucking net is hung on the hooks 34 of the safety protection devices.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims

1. The utility model provides a safety device at bottom of steel construction pocket of encorbelmenting greatly of large-span, a serial communication port, include:

2. The bottom pocket safety device of the large-span large-cantilever steel structure of claim 1, wherein the guide rail is a steel wire rope.

3. The safety protection device for the large-span and large-cantilever steel structure pocket bottom according to claim 2, wherein the connecting assembly comprises a pipe clamp and a connecting rod, the pipe clamp hoop is fixed on the steel wire rope, a first screw hole is formed in a lap joint portion of the pipe clamp, one end of the connecting rod is fixedly connected with the steel structure, a lap joint is arranged at the other end of the connecting rod, a second screw hole is formed in the lap joint, and a fastening bolt is arranged in the first screw hole and the second screw hole in a penetrating mode.