Safety protection device for upper rack support arm

Abstract

The utility model provides a safety protection device for an upper rack supporting arm. The safety protection device comprises a fence and fan-shaped meshes. A plurality of fences are installed on the circumference of the top of a bottom support of the upper rack and define an arc-shaped structure, and through the arrangement of the fences, safety protection of edge work of the top of the bottom support of the upper rack is achieved; the multiple fan-shaped meshes are installed on the tops of the upper rack supporting arms, the adjacent fan-shaped meshes are connected through the connecting assemblies and combined into an annular structure which completely shields gaps between the upper rack supporting arms, and therefore the personal safety of operators located above the upper rack supporting arms is effectively guaranteed, and the risk of high-altitude falling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection devices, in particular to a safety protection device for an upper frame support arm. Background Art

[0002] During the A-level maintenance of a hydropower station, workers need to perform edge work above the upper frame support arm. The upper frame is at a high height from the ground, and workers are at risk of falling from height. The current safety protection measure is to hang a simple anti-fall safety net, but there are the following defects: First, the conditions of the safety net hanging point are poor, and workers need to move to the hanging point without protection, which poses a safety hazard; second, the existing safety net hanging process is inefficient and requires a large number of workers to collaborate to complete. The above problems make the existing upper frame support arm safety net installation process time-consuming and labor-intensive, seriously affecting the unit maintenance period, and posing a high safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a safety protection device for the upper frame support arm, which realizes the safety protection of the top edge operation of the upper frame bottom support and effectively protects the personal safety of the operators located above the upper frame support arm to avoid the risk of falling from a height through the arrangement of multiple fences and multiple fan-shaped meshes. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] An upper frame support arm safety protection device comprises a fence and a fan-shaped mesh;

[0005] A plurality of fences are installed on the top circumference of the bottom support of the upper frame and form an arc-shaped structure;

[0006] A plurality of the fan-shaped mesh sheets are installed on the top of the upper frame support arms, and the adjacent fan-shaped mesh sheets are connected by connecting components and combined into an annular structure that completely blocks the gaps between the upper frame support arms.

[0007] The fan-shaped mesh is formed by combining and connecting a plurality of sub-mesh pieces, and each of the sub-mesh pieces includes a metal frame, in which a safety net is fixedly installed.

[0008] The number of the fan-shaped mesh sheets is consistent with the number of the upper frame support arms, and the fan-shaped mesh sheets shield the gap between two adjacent upper frame support arms.

[0009] The connecting assembly includes two connecting pieces that are distributed in mirror images of each other. The two connecting pieces are connected by fasteners. The connecting pieces are symmetrical structures, and the ends of the connecting pieces are provided with engaging portions for engaging with the metal frame.

[0010] The safety net is a knotless net woven from polyester net ropes.

[0011] The metal frame is made of high-strength aluminum alloy pipes.

[0012] The utility model has the following beneficial effects:

[0013] 1. This protective device can effectively protect the personal safety of operators located above the upper frame arm and avoid the risk of falling from height.

[0014] 2. Compared with the traditional upper rack safety protection net, this device has a simple structure and is easy to install and disassemble, which can improve work efficiency and shorten maintenance period.

[0015] 3. The device is lightweight and modular. After being hoisted to the top of the upper frame arm by a bridge crane, only a small number of operators are needed to complete the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the installation structure of an upper frame support arm safety protection device provided in an embodiment of the utility model;

[0018] Figure 2 The embodiment of the utility model provides Figure 1 Middle M partial enlarged view;

[0019] Figure 3 A schematic diagram of the structure of a fan-shaped mesh provided in an embodiment of the utility model;

[0020] Figure 4 An exploded view of a fan-shaped mesh provided in an embodiment of the utility model;

[0021] Figure 5 A three-dimensional diagram of a connection assembly provided in an embodiment of the utility model;

[0022] Figure 6 A front view of a connection assembly provided in an embodiment of the utility model;

[0023] In the figure: fence 1, opening 1a, fan-shaped mesh 2, sub-mesh 2a, metal frame 2a1, safety net 2a2, upper frame bottom support 3, upper frame support arm 4, connecting assembly 5, connecting piece 5a, clamping part 5a1, fastener 5b. DETAILED DESCRIPTION

[0024] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0025] See attached Figure 1-6 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0026] A safety protection device for an upper frame support arm comprises a fence 1 and a fan-shaped mesh 2; a plurality of the fences 1 are installed on the top circumference of an upper frame bottom support 3 and form an arc-shaped structure; an opening 1a of the arc-shaped structure serves as an inspection passage to facilitate the passage of operators, and through the provision of the fence, safety protection for edge operations at the top of the upper frame bottom support 3 is achieved; a plurality of the fan-shaped meshes 2 are installed on the top of an upper frame support arm 4, and adjacent fan-shaped meshes 2 are connected by connecting components 5 and combined into an annular structure that completely blocks the gaps between the upper frame support arms 4, thereby effectively protecting the personal safety of operators located above the upper frame support arms and avoiding the risk of falling from heights.

[0027] Furthermore, the fan-shaped mesh 2 is composed of a plurality of sub-meshes 2a combined and connected, and the sub-meshes 2a on the same fan-shaped mesh 2 are connected by clamps. Each sub-mesh 2a includes a metal frame 2a1, and a safety net 2a2 is fixedly installed in the metal frame 2a1. The fan-shaped mesh 2 is composed of a plurality of sub-meshes 2a, which is convenient for transportation, modularization, and easy maintenance.

[0028] Furthermore, the number of the fan-shaped mesh sheets 2 is consistent with the number of the upper frame support arms 4 , and the fan-shaped mesh sheets 2 shield the gap between two adjacent upper frame support arms 4 .

[0029] Furthermore, the connecting component 5 includes two connecting parts 5a that are distributed in mirror images of each other, and the two connecting parts 5a are connected by a fastener 5b. The connecting parts 5a are of symmetrical structure, and the ends of the connecting parts 5a are provided with a snap-fitting portion 5a1 for snapping with the metal frame 2a1. Through the setting of the connecting component 5, a quick and stable connection between the fan-shaped meshes 2 is achieved.

[0030] Furthermore, the safety net 2a2 is a knotless net woven from polyester net ropes.

[0031] Furthermore, the metal frame 2a1 is made of high-strength aluminum alloy tubes to reduce the labor intensity of carrying the fan-shaped mesh.

Claims

1. An upper frame support arm safety protection device, characterized in that: It comprises a fence (1) and a fan-shaped mesh (2); A plurality of fences (1) are installed on the top circumference of the bottom support (3) of the upper frame and form an arc-shaped structure; A plurality of the fan-shaped mesh sheets (2) are mounted on the top of the upper frame support arms (4), and adjacent fan-shaped mesh sheets (2) are connected via a connecting assembly (5) and combined into an annular structure that completely blocks the gap between the upper frame support arms (4); The fan-shaped mesh (2) is formed by combining and connecting a plurality of sub-mesh sheets (2a), each of the sub-mesh sheets (2a) comprising a metal frame (2a1), and a safety net (2a2) is fixedly installed in the metal frame (2a1); The connection assembly (5) comprises two connection members (5a) which are arranged in mirror image relation to each other, the two connection members (5a) being connected via a fastener (5b), the connection members (5a) being of symmetrical structure, and the ends of the connection members (5a) being provided with a snap-fitting portion (5a1) for snapping with the metal frame (2a1).

2. The upper frame support arm safety protection device according to claim 1, characterized in that: The number of the fan-shaped mesh sheets (2) is consistent with the number of the upper frame support arms (4), and the fan-shaped mesh sheets (2) shield the gap between two adjacent upper frame support arms (4).

3. The upper frame support arm safety protection device according to claim 2, characterized in that: The safety net (2a2) is a knotless net woven from polyester net ropes.

4. The upper frame support arm safety protection device according to claim 3, characterized in that: The metal frame (2a1) is made of high-strength aluminum alloy tubes.

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