Hanging bar and embedded hanging ring integrated device suitable for downward filling mining method

Abstract

The utility model discloses a hanging bar and embedded hanging ring integrated device suitable for a downward filling mining method, belongs to the technical field of filling mining safety, and solves the problems that a fixed connection mode of the downward filling mining method is original, the labor intensity is high, a large amount of labor force is consumed and the construction efficiency is low. An upper structure is arranged at one end of the hanging bar main body and is in a semi-arc shape, a lower structure is hinged to the other end of the hanging bar main body at a movable angle alpha, the lower structure comprises a connecting rod and a U-shaped structure, the connecting rod and the U-shaped structure are connected at an angle beta, and an embedded hanging ring is connected to the hinged position of the hanging bar main body and the lower structure through a chain. The device has the advantages of being convenient to construct and high in construction efficiency, the labor intensity of constructors can be greatly reduced, the process links of roof construction hoisting holes and hoisting rings are avoided, meanwhile, the lower-layer stoping roof hoisting rings can be reserved in advance due to the integrated design, the filling preparation time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of safety technology in backfilling mining, specifically relating to an integrated device for lifting bars and pre-embedded lifting rings suitable for downward backfilling mining. Background Technology

[0002] After the downfill mining method is completed, the goaf needs to be backfilled. Before backfilling, in order to improve the integrity and strength of the backfill and prevent the top plate of the lower backfill from delaminating, steel bars and steel mesh need to be suspended in the backfilled goaf. This includes drilling anchor holes in the top plate to install lifting rings. The upper end of the lifting bar is connected to the lifting ring in the top plate by manually bending the lifting bar to a certain arc. The bottom end of the lifting bar is connected and fixed to the bottom mesh by manually bending and wrapping it multiple times. When fixing the lifting bar in the top plate and connecting it to the bottom mesh, a lot of manual labor is required to bend the φ12mm main bar, which is time-consuming, labor-intensive and extremely labor-intensive. Drilling holes in the top and fixing the lifting bar and lifting ring requires the cooperation of corresponding mechanical equipment, making the construction cumbersome and inefficient. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated device for vertical tie rods and pre-embedded lifting rings suitable for downfill mining, in order to solve the problems of primitive, labor-intensive, labor-intensive and low-efficiency fixed connection methods of vertical tie rods in the top and bottom plates during the preparation stage of downfill mining.

[0004] The technical solution of this utility model is: an integrated device for lifting rods and pre-embedded lifting rings suitable for downward filling mining method, including a lifting rod body, an upper structure at one end of the lifting rod body, the upper structure being semi-circular, and a lower structure hinged at the other end of the lifting rod body at an active angle α, the lower structure including a connecting rod and a U-shaped structure, the connecting rod and the U-shaped structure being connected at an angle β, and a pre-embedded lifting ring connected to the hinge of the lifting rod body and the lower structure via a chain.

[0005] As a further improvement of this utility model, an extension section is provided at one end of the arc of the upper structure.

[0006] As a further improvement of this utility model, the active angle α is 30°.

[0007] As a further improvement of this utility model, the angle β is 130°.

[0008] The beneficial effects of this utility model are as follows: By designing a pre-embedded lifting ring, the method of fixing the lifting rod to the top slab during the filling preparation stage is solved, reducing traditional processes such as drilling holes in the top and installation. The main body of the lifting rod is designed with an upper and lower structure. The semi-circular upper structure, with one end extended by 100mm, allows the upper structure to work in conjunction with the pre-embedded lifting ring, ensuring a secure and simple fixation of the upper part of the lifting rod. The pre-embedded design integrates the lifting ring and chain, providing flexible movement space for easy placement into the bottom slab during construction. The chain also serves as the connection between the pre-embedded lifting ring and the main unit, facilitating a more convenient and secure connection between the lifting rod and the lifting ring. To address the fixation of the lower part of the lifting rod, the other end of the main body is hinged to the connecting rod at an angle α, avoiding secondary manual bending during on-site operations. Simultaneously, a U-shaped structure at an angle β is connected to the end of the connecting rod, allowing the U-shaped structure to hook with the main body of the lifting rod at a certain angle, achieving a secure and non-detachable connection.

[0009] Compared to traditional hoisting and fixing methods, this utility model features a unique design that offers advantages such as simple processing and low processing costs. Its integrated design also provides advantages such as convenient construction and high construction efficiency. It can greatly reduce the labor intensity of construction workers, avoid the process steps of hoisting holes and construction lifting rings in roof construction, and at the same time, the integrated design can reserve lifting rings for layered backfilling in advance, reducing filling preparation time and improving work efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0012] In the diagram: 1-Upper structure; 2-Main body of the lifting rod; 3-Lower structure; 31-Connecting rod; 32-U-shaped structure; 4-Chain; 5-Embedded lifting ring. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0014] like Figures 1-2 As shown, an integrated device for lifting rods and pre-embedded lifting rings suitable for downfill mining methods includes a lifting rod body 2. One end of the lifting rod body 2 has an upper structure 1, which is semi-circular. The other end of the lifting rod body 2 is hinged to a lower structure 3 at an angle α. The lower structure 3 includes a connecting rod 31 and a U-shaped structure 32, which are connected at an angle β. A pre-embedded lifting ring 5 is connected to the hinge point between the lifting rod body 2 and the lower structure 3 via a chain 4. One end of the upper structure 1 has an extension section; the angle α is 30°; and the angle β is 130°.

[0015] Example 1

[0016] In this embodiment, the main body 2 of the suspension rod, the upper structure 1, and the lower structure 3 are designed with φ12mm steel bars. The main body 2 of the suspension rod is 4400mm long. The pre-embedded lifting ring 5 is a circular steel ring with a radius of R=44mm and a diameter of φ6mm. The chain 4 has dimensions of d*p=14mm*42mm. The upper structure 1 is processed into a semi-circular arc with a radius of R=125mm, which can be directly hooked with the pre-embedded lifting ring 5 of the top plate. One end of the arc of the upper structure 1 is extended by 100mm, and the distance between the extended section and the main body 2 of the suspension rod is 250mm, ensuring that the upper structure 1 and the pre-embedded lifting ring 5 are firmly hooked together.

[0017] The connecting rod 31 in the lower structure 3 is formed by bending the lower section of the main body 2 of the suspension rod at a position of 1020mm to form a hinge, with an angle of movement α of 30°. The connecting rod is 488mm long, and the end of the connecting rod 31 is bent into a U-shaped structure 32. At the same time, the bending angle β at the connection between the U-shaped structure 32 and the connecting rod 31 is 130°. The vertical section of the U-shaped structure 32 is 200mm long, and the distance between the two vertical sections of the U-shaped structure 32 is 40mm. The U-shaped structure 32 with the bending angle, together with the connecting rod 31 hinged to the main body 2 of the suspension rod, can be firmly hooked to the main body 2 of the suspension rod, achieving the effect of preventing detachment. It can be easily fixed to the bottom net, and also has the effect of preventing the main body 2 of the suspension rod from falling off, preventing the U-shaped structure 32 from falling off the main body 2 of the suspension rod.

[0018] The arc extension of the upper structure 1 is connected to the pre-embedded lifting ring 5 of the upper layer. The U-shaped structure 32 in the lower structure 3 is connected and fixed to the main body 2 of the lifting rod through the hinge angle α of the connecting rod 31. The pre-embedded lifting ring 5 is connected and fixed to one end of the chain 4 to form a structure, and the other end of the chain 4 is connected to the hinge of the main body 2 of the lifting rod and the lower structure 3. After the mining of this layer is completed, the pre-embedded structure formed by the pre-embedded lifting ring 5 and the chain 4 is connected to the main body 2 of the lifting rod according to the above requirements. When the mining of the next layer is completed, the pre-embedded structure is exposed and used for the suspension and fixation of the upper structure 1 of this layer.

Claims

1. An integrated device for lifting bars and pre-embedded lifting rings suitable for downward filling mining methods, characterized in that: The system includes a main body (2) of a suspension rod. One end of the main body (2) is provided with an upper structure (1), which is semi-circular. The other end of the main body (2) is hinged to a lower structure (3) at an angle α. The lower structure (3) includes a connecting rod (31) and a U-shaped structure (32). The connecting rod (31) and the U-shaped structure (32) are connected at an angle β. The hinge between the main body (2) and the lower structure (3) is connected to a pre-embedded lifting ring (5) by a chain (4).

2. The integrated device for lifting bars and pre-embedded lifting rings suitable for downward filling mining as described in claim 1, characterized in that: The upper structure (1) has an extension section at one end of the arc.

3. The integrated device for lifting bars and pre-embedded lifting rings suitable for downward filling mining as described in claim 1, characterized in that: The active angle α is 30°.

4. The integrated device for lifting bars and pre-embedded lifting rings suitable for downward filling mining as described in claim 1, characterized in that: The angle β is 130°.

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