Turnover type elevator shaft opening horizontal protection device

Abstract

A turnover type elevator shaft opening horizontal protection device comprises a conical frame, a bottom frame is fixedly installed at the bottom of the conical frame, a plurality of reinforcing ribs are fixedly installed on the side face of the conical frame, the overall projection of the conical frame and the reinforcing ribs is in a cobweb shape, and force can be transmitted on all faces of the conical frame and transmitted to the bottom frame through the conical frame. Force transmission is more uniform, the protective device cannot horizontally move by a large distance due to single-side impact, a limiting device does not need to be used, overall use is convenient, overall rigidity is high, and the protective device can be suitable for higher impact force; in addition, excessive longitudinal steel bars do not need to be arranged to form a latticed structure in a matched mode, the overall rigidity and the force transmission capacity are guaranteed, meanwhile, the using number of the overall steel bars is reduced, the using cost is greatly reduced, and a hanging ring is fixedly installed at the top of the conical frame.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction safety protection, in particular to a rotary elevator shaft opening horizontal protection device. Background Art

[0002] The elevator shaft is the hoistway where the elevator is installed. The size of the shaft is determined according to the type of elevator selected. The elevator track and counterweight track are installed on the shaft wall. The elevator door is installed in the door opening reserved in the shaft. There is an elevator machine room at the top of the shaft. When construction is carried out near the elevator shaft, in order to ensure the safety of construction workers and prevent accidents from falling from the height of the elevator shaft, it is necessary to build protective facilities at the elevator shaft mouth, generally covering the elevator shaft mouth with templates, steel mesh, etc.

[0003] Since the steel mesh is a flat mesh structure, the protective effect against falling objects is poor, and the steel mesh is easily pierced and damaged by falling objects. To solve these problems, a conical protective device (publication number CN215717473U) has appeared. The protective device is designed to be conical, and its side is a grid structure, thereby improving the overall stiffness of the protective device against falling objects, allowing the falling objects to slide along the conical surface, reducing damage to the protective device.

[0004] However, the existing conical protective device has a side wall with a uniform grid structure composed of a number of transverse and longitudinal ribs. The cooperation between the transverse and longitudinal ribs ensures the overall rigidity of the protective device. However, the transverse and longitudinal ribs are perpendicular to each other, the force transmission speed is relatively slow, and the impact resistance is poor. In addition, the large amount of transverse and longitudinal ribs used will not only greatly increase the cost of use, but also make the protective device heavier as a whole. It can only be transferred with the assistance of a sling and cannot be dragged manually, making it inconvenient to use. Utility Model Content

[0005] In order to solve the technical problem that the existing elevator shaft opening conical protection device in the above-mentioned background technology uses a large number of transverse and longitudinal reinforcements, increases the use cost and overall weight, and is inconvenient to use, the utility model provides a rotary elevator shaft opening horizontal protection device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a rotary elevator shaft opening horizontal protection device, comprising: a conical frame, a bottom frame is fixedly installed at the bottom of the conical frame, a plurality of reinforcing ribs are fixedly installed on the side of the conical frame, the projection of the conical frame and the plurality of reinforcing ribs as a whole is spider web-shaped, the ends of two reinforcing ribs 3 have the same angle with the same first steel bar, the force can be transmitted on each surface of the conical frame, and quickly transmitted to the bottom frame through the conical frame and the reinforcing ribs, the force transmission is more uniform, the protection device will not move a large distance horizontally due to unilateral impact, there is no need to use a limit device, the overall use is convenient, and the overall rigidity is high, which can be suitable for stronger impact force; in addition, there is no need to set too many longitudinal steel bars to cooperate to form a grid-like structure, while ensuring the overall rigidity and force transmission capacity, the number of steel bars used is reduced, the use cost is greatly reduced, and because the reinforcing ribs are obliquely arranged, the vertical hollow length is short, the interception effect is better, and a lifting ring is fixedly installed on the top of the conical frame.

[0008] Preferably, the number of reinforcing ribs on two adjacent side surfaces of the conical frame is the same and corresponds one to one, so as to ensure uniformity of force transmission between the side surfaces of the conical frame.

[0009] Preferably, the conical frame includes a plurality of first steel bars, the top ends of all the first steel bars are fixed together, and the bottom ends of the first steel bars are fixedly connected to the bottom frame.

[0010] Preferably, two adjacent first steel bars are connected by a plurality of obliquely arranged reinforcing bars, and the reinforcing bars are arranged at equal intervals along the length direction of the first steel bars, thereby ensuring uniformity of force transmission and improving the overall rigidity of the protective device.

[0011] Preferably, the angles between the ends of the two reinforcing bars and the same first steel bar are the same.

[0012] Preferably, the bottom frame is any one of a square frame and a circular frame, and the bottom frame is welded by the second steel bars.

[0013] It can be seen from the above technical solutions that the advantages of the utility model are:

[0014] The conical structure can improve the overall impact resistance. At the same time, the overall projection of the conical frame and the reinforcement ribs is spider-web-shaped. The force can be quickly transmitted downward between the various surfaces of the conical frame and transmitted to the bottom frame through the conical frame and the reinforcement ribs. The force transmission is more uniform and rapid. The protective device will not move horizontally for a large distance due to unilateral impact. There is no need to use a limit device. The overall use is convenient and can be suitable for stronger impact forces. There is no need to set too many longitudinal steel bars to form a grid structure. While ensuring the overall stiffness and force transmission capability, the number of overall steel bars used is reduced, greatly reducing the use cost and overall weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic projection diagram of a protective device according to one or more embodiments of the present invention;

[0017] Figure 2 It is a schematic diagram of the main structure of the protective device according to one or more embodiments of the present utility model;

[0018] The components represented by the reference numerals in the figure are:

[0019] 1. Bottom frame; 2. Conical frame; 3. Reinforcement ribs; 4. Lifting rings. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0021] In a typical implementation of the present invention, Figure 1-Figure 2 As shown, a rotary elevator shaft horizontal protection device is proposed, comprising: a bottom frame 1, a conical frame 2, a plurality of reinforcing ribs 3 and a lifting ring 4, wherein the conical frame 2 is a conical frame structure, the bottom frame 1 is fixedly mounted on the bottom of the conical frame 2 by welding, the plurality of reinforcing ribs 3 are fixedly mounted on the side of the conical frame 2 by welding, the reinforcing ribs 3 are obliquely arranged, and the projection of the conical frame 2 and the plurality of reinforcing ribs 3 as a whole is in a spider web shape (such as Figure 1 As shown in the figure, the side surfaces of the conical frame 2 are connected by obliquely arranged reinforcing ribs 3 to transmit force, and the conical frame 2 has high mechanical properties and high overall rigidity, and can withstand higher impact forces. The lifting ring 4 is fixedly installed on the top of the conical frame 2 by welding, so as to be used for the lifting work of the entire protective device.

[0022] The bottom frame 1 is any one of a square frame and a circular frame. The bottom frame 1 is welded by a second steel bar with a diameter of 16 mm. The four sides of the bottom frame 1 extend 100 mm beyond the elevator shaft opening to completely cover the elevator shaft opening.

[0023] like Figure 2As shown, the overall height of the conical frame 2 is 400-500mm. The conical frame 2 is welded by a plurality of first steel bars with a diameter of 8mm. The first steel bars with a diameter of 8mm are arranged obliquely, and the top ends of all the first steel bars with a diameter of 8mm are welded and fixed together, and the bottom ends are welded and fixed to the bottom frame 1, thereby forming the overall conical frame structure of the protective device.

[0024] The lifting ring 4 is fixedly installed at the top position of all the first steel bars by welding, so as to facilitate the overall lifting and transfer of the protective device by lifting equipment.

[0025] The reinforcing rib 3 is a third steel bar with a diameter of 6 mm. A plurality of reinforcing ribs 3 are provided. The reinforcing ribs 3 are arranged obliquely. Both ends of the reinforcing rib 3 are respectively welded and fixed to the first steel bars on the adjacent conical frame 2, so that the reinforcing rib 3 is used to connect two adjacent first steel bars on the conical frame 2, and then the two adjacent side surfaces are connected to ensure the transmission of force.

[0026] The number of reinforcing ribs 3 on two adjacent sides of the conical frame 2 is the same and corresponds one to one. Figure 1 As shown, the number of reinforcing bars 3 on two adjacent sides is the same, and a plurality of reinforcing bars 3 are arranged at equal intervals along the length direction of the first steel bar. The angles between the ends of the two reinforcing bars 3 and the same first steel bar are the same, that is, the angles between the first steel bar and the two reinforcing bars 3 on both sides thereof are the same.

[0027] In this embodiment, eight first steel bars are provided and are arranged at equal intervals along the circumference, and an angle of 45° is provided between two adjacent first steel bars. The bottom end of the conical frame 2 is also connected to the bottom frame 1 through a reinforcing rib 3, which can further improve the force transmission capacity.

[0028] Among them, the first steel bar is the main bar, and its diameter is much larger than the reinforcing bar 3. The reinforcing bar 3 is the auxiliary bar, which is used to cooperate with the first steel bar to form a structure with a spider-web-like projection. The size and setting method of the first steel bar and the reinforcing bar 3 greatly reduce the number of steel bars (especially the first steel bar) used.

[0029] By setting the reinforcing ribs 3, the two adjacent first steel bars can be connected by using the reinforcing ribs 3, and then all the first steel bars of the conical frame 2 can be connected. In actual use, since the reinforcing ribs 3 are set obliquely, the force can be quickly transmitted downward between the various surfaces of the conical frame 2, and quickly transmitted to the bottom frame 1 through the conical frame 2 and the reinforcing ribs 3. The force transmission is more uniform, the overall rigidity is high, and it can be suitable for stronger impact forces. In addition, there is no need to set too many longitudinal steel bars to form a uniform grid structure. While ensuring the overall rigidity and force transmission capacity, the number of overall steel bars used is reduced, which greatly reduces the use cost. Moreover, since the reinforcing ribs 3 are set obliquely, the vertical hollow length is short, and the interception effect is better.

[0030] In actual use, when the protective device needs to be transferred between layers, the lifting device and the lifting ring 4 are used to achieve the lifting transfer; when the protective device needs to be moved horizontally for a short distance, it can be moved manually;

[0031] When the protective device is placed at the elevator shaft opening, the bottom frame 1 is supported by beams around the elevator shaft opening, and the conical frame 2 is located directly above the elevator shaft opening to complete the covering.

[0032] Due to the provision of the reinforcing ribs 3, the impact force can be evenly transmitted between the side surfaces of the conical frame 2, so that the protective device will not move horizontally a large distance due to a unilateral impact, and there is no need to use a limiting device, which is convenient to use as a whole.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary elevator shaft horizontal protection device, comprising: The conical frame (2) is characterized in that a bottom frame (1) is fixedly installed at the bottom of the conical frame (2), a plurality of reinforcing ribs (3) are fixedly installed on the side of the conical frame (2), the projection of the conical frame (2) and the reinforcing ribs (3) as a whole is in a spider web shape, the bottom end of the conical frame (2) is also connected to the bottom frame (1) through the reinforcing ribs (3), and a lifting ring (4) is fixedly installed at the top of the conical frame (2).

2. A rotary elevator shaft horizontal protection device according to claim 1, characterized in that: The number of reinforcing ribs (3) on two adjacent side surfaces of the conical frame (2) is the same and corresponds one to one.

3. A rotary elevator shaft horizontal protection device according to claim 1, characterized in that: The conical frame (2) comprises eight first steel bars arranged at equal intervals along the circumference, the top ends of all the first steel bars are fixedly connected together, and the bottom ends of the first steel bars are fixedly connected to the bottom frame (1).

4. A rotary elevator shaft horizontal protection device according to claim 3, characterized in that: Two adjacent first steel bars are connected by a plurality of obliquely arranged reinforcing bars (3), the reinforcing bars (3) are arranged at equal intervals along the length direction of the first steel bars, and the diameter of the reinforcing bars (3) is smaller than that of the first steel bars.

5. A rotary elevator shaft horizontal protection device according to claim 4, characterized in that: The included angles between the ends of the two reinforcing bars (3) and the same first steel bar are the same.

6. A rotary elevator shaft horizontal protection device according to claim 1, characterized in that: The bottom frame (1) is any one of a square frame and a circular frame, and the bottom frame (1) is formed by welding the second steel bars.

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