Safety protective cover for elevator shaft opening

Abstract

The utility model belongs to the field of building construction safety protection, and particularly relates to a safety protection cover for an elevator shaft opening, which comprises a conical cover body, the cover body is of a frame structure, and the cover body comprises a rectangular bottom frame, four side ribs, four middle ribs and a plurality of middle frames with different sizes; the lower ends of the four side ribs are arranged at the four corners of the bottom frame respectively, and the lower ends of the four middle ribs are arranged at the midpoints of the four sides of the bottom frame respectively. The middle frame is horizontally arranged, and the middle frame is arranged on the outer sides of the side ribs and the middle ribs at intervals; the device is simple in structure, practical in function and low in material cost, and manufacturing materials can be directly obtained locally; the protective device is directly placed on an elevator shaft opening to be used for protecting the shaft opening, can be repeatedly used in a turnover mode and can be used in a stacked mode, and the risk of high-altitude falling of personnel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction safety protection, specifically relates to a safety shield for elevator shaft mouth. BACKGROUND

[0002] The elevator is the necessary component of the current high-rise building. In the construction process, each floor and elevator shaft are poured in layers, before pouring, a large number of workers carry out floor reinforcement construction, formwork construction and other operations, personnel frequently, therefore need to set up safety protection device in the elevator shaft mouth. The existing edge protection device is generally that the fence and old formwork are set around the elevator shaft mouth and are used as protective cover plate to cover the elevator shaft mouth, but the fence needs to be installed and disassembled back and forth in the process of layer-by-layer construction of the elevator shaft, and the operation is cumbersome and inconvenient.

[0003] Therefore, it is necessary to provide an improved technical scheme for the above-mentioned deficiencies of the prior art. UTILITY MODEL CONTENTS

[0004] The utility model discloses a safety shield for elevator shaft mouth which overcomes the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A safety shield for elevator shaft mouth, comprising a conical shield body, the shield body is a frame structure, the shield body comprises a rectangular bottom frame, four edge bars, four middle bars and a plurality of middle frames of different sizes; the lower ends of the four edge bars are respectively arranged at the four corners of the bottom frame, and the lower ends of the four middle bars are respectively arranged at the midpoints of the four sides of the bottom frame; the middle frames are arranged horizontally and are arranged at the outer sides of the edge bars and the middle bars.

[0007] Further, the number of middle frames is 3-8.

[0008] Further, the middle frames and the bottom frame are the same shape.

[0009] Further, the diameters of the edge bars, the middle bars and the bottom frame reinforcement are all above 18mm, and the diameter of the middle frame reinforcement is above 16mm.

[0010] Further, the top of the shield body is provided with a top ring, and the upper ends of all the middle bars and the edge bars are fixed on the top ring.

[0011] Further, the top of the shield body is provided with a top ring, and the upper ends of all the middle bars and the edge bars are rotatably connected to the top ring.

[0012] Further, the upper ends of the middle bars and the edge bars are bent into hook parts and hooked on the top ring.

[0013] Further, the upper end of the middle rib and the edge rib is fixed with a rotating ring, and the rotating ring is rotationally arranged on the top ring.

[0014] Further, the top end of the cover body is provided with a lifting ring.

[0015] Further, the middle frame is fixed by binding or welding with the middle rib and the edge rib.

[0016] The utility model discloses the beneficial effect is:

[0017] The utility model discloses simple structure, practical function, and the production material can directly just in place, and material cost is low, the utility model discloses directly place on the elevator shaft mouth as the shaft mouth protection and use, can turn over repeatedly use, can stack use, reduce the risk of personnel high altitude falling. DETAILED DESCRIPTION

[0018] The description and the drawings of the accompanying drawings that form a part of this application provide further understanding of the present utility model, and the illustrative embodiments of the present utility model and the description thereof are used to explain the present utility model, and do not constitute improper limitation on the present utility model. Among them:

[0019] Figure 1 It is the use state structural schematic drawing of the utility model embodiment.

[0020] Figure 2 It is the overhead structure schematic drawing of the utility model embodiment.

[0021] Figure 3 It is the overhead structure schematic drawing when the utility model embodiment is stacked and used.

[0022] Figure 4 It is the overhead structure schematic drawing of the top ring of one embodiment of the utility model.

[0023] Figure 5 It is the structure schematic drawing of the top ring of another embodiment of the utility model.

[0024] In the drawing: 1-bottom frame, 21-edge rib, 22-middle rib, 3-middle frame, 4-lifting ring, 5-top ring, 51-patch rib, 6-rotating ring, 7-positioning block. DETAILED DESCRIPTION

[0025] The technical scheme in the utility model embodiment will be described clearly and completely below, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art belong to the range of protection of the utility model.

[0026] In the description of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and do not require the utility model to be necessarily constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model. The terms "connected", "connected" used in the utility model should be understood broadly, for example, can be fixed connection, can also be detachable connection, can be directly connected, or indirectly connected through an intermediate part, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] The utility model will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] Embodiment 1

[0029] As Figures 1 to 2 shown, a safety shield for elevator shaft mouth includes a conical shield body, the shield body is a frame structure, the shield body includes a rectangular bottom frame 1, four edge ribs 21, four middle ribs 22 and a plurality of middle frames 3 with different sizes; the lower ends of the four edge ribs 21 are arranged at the four corners of the bottom frame 1 respectively, and the lower ends of the four middle ribs 22 are arranged at the midpoints of the four sides of the bottom frame 1 respectively; the middle frame 3 is arranged horizontally, and the middle frame 3 is arranged at the outer side of the edge rib 21 and the middle rib 22 at intervals.

[0030] Further, the number of the middle frame 3 is 3-8, which maintains appropriate density and prevents personnel from falling in.

[0031] Further, the middle frame 3 is the same in shape as the bottom frame 1.

[0032] Optionally, the top of the shield body is provided with a top ring 5, the top ring 5 serves as a mounting medium, and the upper ends of all the middle ribs 22 and the edge ribs 21 are welded and fixed on the top ring 5.

[0033] The top end of the shield body is provided with a lifting ring 4, which is convenient for hoisting and transferring with a tower crane and the like.

[0034] The middle frame 3 is fixed or welded with the middle rib 22 and the edge rib 21.

[0035] In one specific embodiment, the diameters of the edge rib 21, the middle rib 22 and the reinforcing steel bars of the bottom frame 1 are all above 18mm; the diameter of the reinforcing steel bars of the middle frame 3 is above 16mm; and the maximum spacing between adjacent two middle frames 3 is 40cm.

[0036] This utility model can be directly fabricated using surplus steel reinforcement on site. After the elevator shaft formwork is erected, a safety guard is placed on the elevator shaft opening for protection before concrete pouring. After the concrete is poured, the safety guard is lifted away and reinstalled for protection during the next floor's pour, thus allowing for cyclical use. After being placed on the shaft opening, the safety guard can be securely tied to the main steel reinforcement. For shaft openings slightly larger than the size of the safety guard, such as... Figure 3 As shown, two safety shields can be stacked alternately.

[0037] Example 2

[0038] This embodiment is another implementation based on embodiment 1. The description of the same technical solutions as in embodiment 1 will be omitted, and only the technical solutions that are different from those in embodiment 1 will be described.

[0039] In this embodiment, as Figure 4 , Figure 5 As shown, a top ring 5 is provided on the top of the cover body, and the upper ends of all the middle ribs 22 and the side ribs 21 are rotatably connected to the top ring 5, so that the opening size of the cover body can be adjusted according to the size of the elevator shaft.

[0040] The central rib 22, the side rib 21, and the top ring 5 can be connected in various ways; in one embodiment, the upper ends of the central rib 22 and the side rib 21 are bent into hooks and hooked onto the top ring 5; in another embodiment, the upper ends of the central rib 22 and the side rib 21 are each fixed with a rotating ring 6, which is rotatably mounted on the top ring 5; the top ring 5 can be annular or octagonal; for example... Figure 4 As shown, eight positioning blocks 7 are fixed at intervals on the top ring 5 of the annulus, and a central rib 22 / side rib 21 is set between two adjacent positioning blocks 7; Figure 5 As shown, the octagonal top ring 5 is welded together from 8 reinforcing ribs 51, thus having a limiting function of the central rib 22 / edge rib 21.

[0041] In use, the bottom frame 1 is welded and fixed to the central rib 22 and the side rib 21, so that the opened side rib 21 and central rib 22 can be stably shaped into a cone. The middle frame 3 can be prefabricated and installed after the bottom frame 1 is fixed. The middle frames 3 of different sizes are lowered from the top of the cover body until the middle frame 3 contacts the central rib 22 and the side rib 21. Then, the middle frame 3 is tied and fixed at the part that contacts the central rib 22 / side rib 21. Each middle frame 3 has at least one binding point on each side to ensure that the middle frame 3 can be installed firmly.

[0042] In the embodiment, since the side rib 21 and the middle rib 22 are rotationally connected to the top ring 5, the opening and closing degree is adjustable, when pouring an elevator shaft, the bottom frame 1 can be made according to the size of the shaft opening, then the size of the bottom of the cover body is limited by the bottom frame 1, so that the cover body can be just covered on the elevator shaft opening.

[0043] After the construction of an elevator shaft is completed, if the size of the next construction elevator shaft is different, the bottom frame 1 can be separated from the middle rib 22 / side rib 21, the binding wire of the middle frame 3 is unbundled, the bottom frame 1 is re-customized and welded and fixed on the bottom of the cover body, then the middle frame 3 is re-bundled. If the project construction is completed, the safety protection cover needs to be transferred, the bottom frame 1, the middle frame 3, the top ring 5 with the side rib 21 and the middle rib 22 can be disassembled and collected and stored, compared with directly stacking and storing the cover body as a whole, the storage space is saved; the steel bars of the bottom frame 1 and the middle frame 3 can be recycled, only the top ring 5 with the side rib 21 and the middle rib 22 is transferred.

[0044] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is within the protection scope of the present application.

Claims

1. A safety shield for an elevator shaft opening comprising a conical shield body, characterised in that: The cover body is a frame structure, and the cover body comprises a rectangular bottom frame (1), four edge ribs (21), four middle ribs (22) and a plurality of middle frames (3) with different sizes; the lower ends of the four edge ribs (21) are respectively arranged at the four corners of the bottom frame (1), and the lower ends of the four middle ribs (22) are respectively arranged at the midpoints of the four sides of the bottom frame (1); the middle frames (3) are arranged horizontally and are arranged at the outer sides of the edge ribs (21) and the middle ribs (22) at intervals; a top ring (5) is arranged at the top of the cover body, and the upper ends of all the middle ribs (22) and the edge ribs (21) are rotatably connected to the top ring (5); the middle frames (3) are fixedly connected to the middle ribs (22) and the edge ribs (21).

2. Safety shield for an elevator shaft opening according to claim 1, characterized in that The number of the middle frames (3) is 3-8.

3. A safety shield for an elevator shaft opening according to claim 1, characterized in that: The middle frames (3) are the same in shape as the bottom frame (1).

4. A safety shield for an elevator shaft opening according to claim 1, characterized in that: The diameters of the edge ribs (21), the middle ribs (22) and the reinforcing steel bars of the bottom frame (1) are all greater than or equal to 18 mm; and the diameter of the reinforcing steel bars of the middle frames (3) is greater than or equal to 16 mm.

5. A safety shield for an elevator shaft opening according to claim 1, characterized in that: A top ring (5) is arranged at the top of the cover body, and the upper ends of all the middle ribs (22) and the edge ribs (21) are fixed to the top ring (5).

6. A safety shield for an elevator shaft opening according to claim 1, characterized in that: The upper ends of the middle ribs (22) and the edge ribs (21) are bent into hook portions and are hooked on the top ring (5).

7. A safety shield for an elevator shaft opening according to claim 1, characterized in that: Swivel rings (6) are fixed to the upper ends of the middle ribs (22) and the edge ribs (21), and the swivel rings (6) are rotatably arranged on the top ring (5).

8. A safety shield for an elevator shaft opening according to claim 1, characterized in that: A lifting ring (4) is arranged at the top end of the cover body.

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