CN219471732U - Anti-falling net for elevator shaft opening - Google Patents

Abstract

The utility model relates to the technical field of elevator shaft protection, in particular to an elevator shaft opening anti-falling net which is composed of a plurality of unit anti-falling modules, wherein each unit anti-falling module is of a rectangular net structure, one side of each unit anti-falling module is provided with a fixed nut, at least one of the other three sides is provided with a connecting sleeve, the axle center of each fixed nut is perpendicular to the unit anti-falling module, and the axle center of each connecting sleeve is parallel to the unit anti-falling module; a bolt sleeve is embedded in the concrete structure of the hole, a fixing nut is connected with the bolt sleeve through a fixing bolt, a connecting bolt is penetrated between the connecting sleeves of the anti-falling modules of adjacent units, and the other end of the connecting bolt is connected with a connecting nut; the adjacent unit anti-falling modules are convenient to detach and connect, and in different construction projects, a proper number of unit anti-falling modules can be selected for assembly according to the size of the opening of the elevator shaft; after connection, the unit anti-falling module is of a hinged structure, is convenient to fold and is convenient to turn over after folding.

Description

Anti-falling net for elevator shaft opening

Technical Field

The utility model relates to the technical field of elevator shaft protection, in particular to an elevator shaft opening anti-falling net.

Background

In order to prevent sundries such as stones and scrap steel from falling from high altitude in the process of installing an ultra-high-rise elevator shaft, an elevator shaft opening anti-falling net is usually required to be installed at an elevator shaft opening, and the elevator shaft opening anti-falling net comprises a nylon protection net and a shaping steel skeleton protection net; therefore, the protection is usually carried out by adopting the shaped steel skeleton protection net, but the cost is higher, and the lower layer is inconvenient to transport to the upper layer after construction is finished.

The utility model provides a collapsible turnover formula design elevator shaft entrance to a cave protector of current application number is CN202220320288.0, includes the protection grid, and the protection grid includes two locating frames, connecting frame and a plurality of interception board, and the locating frame passes through the hinge with the connecting frame and articulates, and during the use, the staff can fold the protection grid through the hinge, transports when being convenient for construct upper and lower floor's elevator shaft; but among the prior art, this protection network is only applicable to the elevator shaft entrance to a cave of fixed size, among the different construction projects, and elevator shaft protection entrance to a cave size is inconsistent, can not used repeatedly, and simultaneously, it is put into personnel through four erection columns and tramples, can not be fine fix protection grid and structure, during the use, if protection grid receives external force and takes place the displacement, then can not play fine guard action, is unfavorable for the assurance of construction safety.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a modularized and spliced elevator shaft opening anti-falling net which is convenient to be used in turnover in different construction projects.

The technical scheme adopted for solving the technical problems is as follows:

an elevator shaft opening anti-falling net consists of a plurality of unit anti-falling modules, wherein each unit anti-falling module is of a rectangular net structure, one side of each unit anti-falling module is provided with a fixed nut, at least one of the other three sides is provided with a connecting sleeve, the axis of each fixed nut is perpendicular to each unit anti-falling module, and the axis of each connecting sleeve is parallel to each unit anti-falling module; the concrete structure of the hole is embedded with a bolt sleeve, a fixing nut is connected with the bolt sleeve through a fixing bolt, a connecting bolt is arranged between the connecting sleeves of the anti-falling modules of the adjacent units in a penetrating way, and the other end of the connecting bolt is connected with a connecting nut.

Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:

the utility model belongs to a shaped steel skeleton protective net, which is used for protecting falling objects, wherein adjacent unit anti-falling modules are convenient to detach and connect, and in different construction projects, a proper number of unit anti-falling modules can be selected for assembly according to the size of an elevator shaft opening; after connection, the unit anti-falling module is of a hinged structure, so that the folding is convenient, and the turnover is convenient after the folding when elevator shafts of different floors of the same construction project are constructed; meanwhile, the unit anti-falling module is fixed with the concrete structure through the fixing bolt, so that the fixing is firmer and the use is safer.

Preferably, the utility model further adopts the technical scheme that:

two fixing nuts are arranged at one side of the unit anti-falling module, where the fixing nuts are arranged at intervals, and the two fixing nuts are symmetrically arranged about the symmetry axis of the unit anti-falling module; two connecting sleeves are arranged at one side of the connecting sleeve of the unit anti-falling module at intervals, and the two connecting sleeves are asymmetrically arranged relative to the symmetry axis of the unit anti-falling module; all the unit anti-falling modules can be produced according to the same specification, and the adjacent unit anti-falling modules can be spliced only by turning left and right and turning up and down during use.

The length of the connecting sleeve is L1, one of the two connecting sleeves is 30-50 mm away from the vertex angle of the unit anti-falling module, and the other connecting sleeve is 40-60 mm+L1 from the adjacent vertex angle of the unit anti-falling module; the anti-falling modules of the adjacent two side units are connected more quickly and conveniently.

The unit anti-falling module comprises a rectangular outer frame and a steel wire mesh arranged in the outer frame.

The steel wire net is provided with protective cloth; effectively prevent debris such as stone, steel scrap that the diameter is less than the wire net mesh from falling.

Drawings

Fig. 1 is a schematic diagram of an assembly structure of an elevator shaft opening anti-falling net in an embodiment of the utility model;

FIG. 2 is a schematic view of a unit fall protection module according to an embodiment of the present utility model;

FIG. 3 is a schematic view of another unit fall protection module according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a unit fall protection module according to another embodiment of the present utility model;

FIG. 5 is a schematic diagram of an assembly of four-block unit fall protection modules according to an embodiment of the present utility model;

fig. 6 is a schematic view of a connection structure of a connection bolt and a connection nut in the embodiment of the present utility model.

Reference numerals illustrate: 1. a unit anti-falling module; 2. a fixed screw cap; 3. a connecting sleeve; 4. a connecting bolt; 5. and (5) connecting a nut.

Detailed Description

The utility model is further illustrated below in conjunction with specific embodiments, only for a better understanding of the present disclosure, and therefore, the examples are not intended to limit the scope of the present disclosure.

As shown in fig. 1 to 6, the utility model provides an elevator shaft opening anti-falling net, which consists of a plurality of unit anti-falling modules 1, wherein the unit anti-falling modules 1 are of rectangular structures, one side of each unit anti-falling module is provided with a fixed nut 2, and at least one of the other three sides is provided with a connecting sleeve 3; the axle center of the fixed nut 2 is perpendicular to the unit anti-falling module 1, and the axle center of the connecting sleeve 3 is parallel to the unit anti-falling module 1; as shown in fig. 2 and 3, a connecting sleeve 3 is arranged on one side, and as shown in fig. 4, a connecting sleeve 3 is arranged on three sides; when concrete pouring is carried out at the opening of the elevator shaft, a bolt sleeve is pre-buried in the concrete structure in advance, and a fixed nut 2 is connected with the bolt sleeve through a fixed bolt; as shown in fig. 1, after the unit anti-falling modules 1 are turned left and right and turned up and down, the connecting sleeves 3 of the adjacent unit anti-falling modules 1 are arranged in a staggered manner, connecting bolts 4 are arranged between the two connecting sleeves 3 of the adjacent unit anti-falling modules 1 in a penetrating manner, and the other ends of the connecting bolts 4 are connected with connecting nuts 5; wherein, every unit anti-falling module 1 all includes rectangle frame and the wire net of setting in the frame.

Further, as shown in fig. 3 and 4, two fixing nuts 2 are arranged at intervals on one side of the unit anti-falling module 1, where the fixing nuts 2 are arranged, and the two fixing nuts 2 are symmetrically arranged about the symmetry axis of the unit anti-falling module 1; the unit anti-falling module 1 is provided with two connecting sleeves 3 at intervals on one side of the connecting sleeve 3, and the two connecting sleeves 3 are asymmetrically arranged relative to the symmetry axis of the unit anti-falling module 1.

Further, the length of the connecting sleeve 3 is L1, one of the two connecting sleeves 3 is 30mm to 50mm away from the vertex angle of the unit anti-falling module 1, and the other connecting sleeve is 40mm+L1 to 60mm+L1 away from the adjacent vertex angle of the unit anti-falling module 1; the anti-falling modules 1 of the adjacent two side units are more rapid and convenient to connect.

In order to prevent sundries with the diameter smaller than that of the meshes of the steel wire mesh from falling, the steel wire mesh is also provided with protective cloth, and the protective cloth is bound and fixed with the steel wire mesh or the outer frame.

When the anti-falling device is used, a proper number of unit anti-falling modules 1 are selected for assembly according to the size of an elevator shaft opening, and when the connecting sleeves 3 are arranged on the opposite sides of the fixing nuts 2, as shown in fig. 1, every two unit anti-falling modules 1 are connected into a group, the left and right units are connected into a whole, a plurality of groups are arranged longitudinally, and the fixing nuts 2 on the two sides are connected into the embedded bolt sleeves of the concrete structure through fixing bolts; when the connecting sleeve 3 is arranged on the other three sides, as shown in fig. 5, the three sides of each unit anti-falling module 1, on which the connecting sleeve 3 is arranged, can be connected with the adjacent unit anti-falling modules 1, and the connected plurality of unit anti-falling modules 1 are connected with the fixing nuts 2 on the two sides in the embedded bolt sleeve of the concrete structure through the fixing bolts; when the construction of the N layers is completed, the fixing bolts are detached when the elevator shaft of the N+1 layers is constructed, the elevator shaft opening anti-falling net is folded, and workers carry the folded elevator shaft opening anti-falling net to the N+1 layers for installation.

When the unit anti-falling modules 1 are arranged left and right, the right unit anti-falling module 1 is horizontally turned over and vertically turned over for the left unit anti-falling module 1; when the unit anti-falling modules 1 are arranged up, down, left and right, the right unit anti-falling module 1 is a left unit anti-falling module 1 which is turned horizontally and is connected with the upper and lower unit anti-falling modules 1 on the same side.

The elevator shaft opening anti-falling net comprises a plurality of unit anti-falling modules, and the unit anti-falling modules are convenient to detach and connect; after connection, each unit anti-falling module is of a hinged structure, so that the folding is convenient, the turnover is convenient after the folding when the elevator shafts of different floors of the same construction project are constructed, the assembly is convenient according to different opening sizes when the elevator shafts of different construction projects are constructed, and the applicability is strong and the elevator shaft can be repeatedly used; meanwhile, the side edge of the unit anti-falling module is fixed with the concrete structure of the elevator shaft opening.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present utility model as defined by the appended claims.

Claims (5)

1. An elevator shaft entrance to a cave prevents weighing down net, its characterized in that: the anti-falling unit comprises a plurality of anti-falling unit modules, wherein each anti-falling unit module is of a rectangular net structure, one side of each anti-falling unit module is provided with a fixed nut, at least one of the other three sides is provided with a connecting sleeve, the axis of each fixed nut is perpendicular to the anti-falling unit module, and the axis of each connecting sleeve is parallel to the anti-falling unit module; the concrete structure of the hole is embedded with a bolt sleeve, a fixing nut is connected with the bolt sleeve through a fixing bolt, a connecting bolt is arranged between the connecting sleeves of the anti-falling modules of the adjacent units in a penetrating way, and the other end of the connecting bolt is connected with a connecting nut.

2. The hoistway entrance to a cave anti-drop net according to claim 1, wherein: two fixing nuts are arranged at one side of the unit anti-falling module, where the fixing nuts are arranged at intervals, and the two fixing nuts are symmetrically arranged about the symmetry axis of the unit anti-falling module; the unit anti-falling module is provided with two connecting sleeves at intervals on one side of the connecting sleeve, and the two connecting sleeves are asymmetrically arranged relative to the symmetry axis of the unit anti-falling module.

3. The hoistway entrance to a cave anti-drop net according to claim 2, wherein: the length of the connecting sleeve is L1, one of the two connecting sleeves is 30-50 mm away from the vertex angle of the unit anti-falling module, and the other connecting sleeve is 40-60 mm+L1 from the adjacent vertex angle of the unit anti-falling module.

4. The hoistway entrance to a cave anti-drop net according to claim 1, wherein: the unit anti-falling module comprises a rectangular outer frame and a steel wire mesh arranged in the outer frame.

5. The hoistway entrance to a cave anti-drop net of claim 4, wherein: the wire mesh is provided with protective cloth.