Orifice safety protection device for medium-length hole in surface mine
By designing a safety protection device for deep holes in open-pit mines including retractable vertical connecting rods and triangular connecting frames, the problems of uneven deep holes in open-pit mines and the difficulty of safety protection are solved, and effective sealing and safety improvement of the orifices are achieved.
Patent Information
- Application Number
- CN202421423648.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The deep holes in open-pit mines are uneven and the safety protection is difficult. Moreover, the stones on the on-site operating platform are prone to fall into the hole, causing the hole body to be blocked, which affects subsequent loading and blasting, and poses a great safety risk.
A safety protection device for deep holes in open-pit mines including retractable vertical connecting rods and triangular connecting frames is designed. Through the adjustment of vertical connecting rods and the embedding of triangular connecting frames, a three-dimensional protective structure is formed to seal the holes and adapt to the needs of different apertures.
It effectively solves the problems of uneven orifice and difficulty in safety protection, reduces the situation of falling stones by falling stones, prevents people from falling or falling stones, and improves the safety of mine production safety.
Smart Images
Figure CN222799832U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mine production safety protection device, in particular to a deep hole opening protection device in an open-pit mine. Background Art
[0002] Open-pit mines are mined using the layered step method, which mainly uses rotary drills to form medium-deep holes and then charge and blast. As the scale of mining increases, the number of medium-deep holes formed by drilling is large, which can easily cause safety hazards such as workers stepping on air and falling. In addition, there are many stones on the on-site working platform, which can easily fall into the hole and cause the hole to be blocked, affecting the subsequent charging and blasting, bringing greater safety risks to mine safety production. During the construction of open-pit mine drilling rigs, high-pressure wind blows the ore and rock powder to the hole mouth to form an uneven small "hill", and the platform formed by blasting mining has poor flatness, making it difficult to lay safety protection plates on site to seal the hole mouth. Moreover, it is difficult to set up permanent protection to facilitate subsequent blasting operations. Utility Model Content
[0003] The utility model aims to provide a safety protection device for deep hole openings in open-pit mines in view of the problems existing in the prior art.
[0004] To this end, the utility model adopts the following technical solutions:
[0005] A safety protection device for the opening of a deep hole in an open-pit mine comprises a horizontally arranged protection mesh, a horizontally arranged triangular connecting frame is provided at the middle position of the bottom surface of the protection mesh, three vertical connecting rods are provided below the triangular connecting frame, the top ends of the three vertical connecting rods are respectively connected to the three corner points of the triangular connecting frame, and the bottom ends of the three vertical connecting rods are connected to one point to form an inverted cone structure.
[0006] Furthermore, the vertical connecting rod is a retractable structure, the top ends of the three vertical connecting rods are movably connected to the three corner points of the triangular connecting frame through connecting pieces, and the bottom ends of the three vertical connecting rods are movably connected to one point through connecting pieces.
[0007] Furthermore, the vertical connecting rod includes a hollow sleeve, both ends of the sleeve are respectively connected to threaded rods, and the sleeve is threadedly connected to the threaded rod.
[0008] Furthermore, first connecting rings are respectively provided at the corner points of the triangular connecting frame, a second connecting ring is provided at the top end of the vertical connecting rod, and the first connecting ring and the second connecting ring are connected by a first movable fastener.
[0009] Furthermore, the first movable fastener is a safety buckle.
[0010] Furthermore, a third connecting ring is provided at the bottom end of the vertical connecting rod, and the three third connecting rings are connected by a second movable fastener.
[0011] Furthermore, the second movable fastener is a connecting rope or a safety buckle.
[0012] Furthermore, a handle is provided on the top surface of the protective mesh.
[0013] Furthermore, the protective mesh is circular.
[0014] Furthermore, the protective mesh is movably connected to the triangular connecting frame.
[0015] The beneficial effects of the utility model are:
[0016] 1. The device uses a retractable vertical connecting rod to change the length of the vertical connecting rod of the protective device, thereby changing the height of the inverted cone, so that it can adapt to the hole protection requirements of medium and deep holes with different apertures in open-pit mines.
[0017] 2. Through the embedded three-dimensional protection structure of the hole, the top corner is embedded in the hole for blocking, which effectively solves the problem of uneven hole opening and difficulty in safety protection in open-pit mines.
[0018] 3. Reduce the blockage of medium and deep holes by falling stones, effectively preventing people from falling or stones from falling.
[0019] 4. The protective mesh structure of the utility model is light, easy to repair and replace, and has strong flexibility in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0021] Figure 2 It is a structural side view of the utility model;
[0022] Figure 3 It is a top view of the structure of the utility model;
[0023] Figure 4 It is a structural schematic diagram of the vertical connecting rod of the utility model;
[0024] Figure 5 This is a diagram of the use state of the utility model;
[0025] In the figure, 1-protective mesh, 2-triangular connecting frame, 201-first connecting ring, 202-first movable fastener, 3-vertical connecting rod, 301-second connecting ring, 302-sleeve, 303-threaded rod, 304-third connecting ring, 305-second movable fastener, 4-handle, 5-medium-deep hole. DETAILED DESCRIPTION
[0026] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.
[0027] like Figure 1-5 A safety protection device for the opening of a medium-deep hole in an open-pit mine is shown, comprising a horizontally arranged protection mesh 1, the protection mesh 1 is a circular galvanized steel wire mesh with square holes, and its radius is slightly larger than the radius of the opening of the medium-deep hole, so that the protection mesh 1 can completely cover the opening; a horizontally arranged triangular connecting frame 2 is provided at the middle position of the bottom surface of the protection mesh 1, and the radius of the circumscribed circle of the triangular connecting frame 2 is larger than the radius of the opening, so that the triangular connecting frame 2 is stuck above the opening and slightly higher than the opening.
[0028] Three vertical connecting rods 3 are provided below the triangular connecting frame 2. The vertical connecting rods 3 are a retractable structure, including a hollow sleeve 302. Both ends of the sleeve 302 are respectively connected to threaded rods 303. The sleeve 302 is threadedly connected to the threaded rod 303. The length of the vertical connecting rod 3 can be adjusted by rotating the threaded rod 303 in the sleeve 302.
[0029] The top ends of the three vertical connecting rods 3 are movably connected to the three corner points of the triangular connecting frame 2 through connecting pieces, and the corner points of the triangular connecting frame 2 are respectively provided with first connecting rings 201, and the top ends of the vertical connecting rods 3 are provided with second connecting rings 301, and the first connecting ring 201 and the second connecting ring 301 are connected by a first movable fastener 202, and the first movable fastener 202 is a safety buckle; the bottom ends of the three vertical connecting rods 3 are movably connected to one point through connecting pieces, forming an inverted cone structure, and the bottom ends of the vertical connecting rods 3 are provided with a third connecting ring 304, and the three third connecting rings 304 are connected by a second movable fastener 305, and the second movable fastener 305 is a connecting rope or a safety buckle.
[0030] The top surface of the protective mesh 1 is provided with a handle 4, which is convenient for taking out the safety protection device from the hole. The protective mesh 1 and the triangular connecting frame 2 are movably connected by bolts, which is convenient for disassembly and replacement of the protective mesh 1. The overall device of the utility model is sprayed with anti-rust paint to prevent it from rusting in an open air environment.
[0031] After the drilling construction of the open-pit mine 5, the high-pressure wind blows the ore powder 8 to the hole mouth to form an uneven small "hill". According to the different diameters of the deep holes 6 in the open-pit mine on-site construction, the lengths of the three vertical connecting rods 3 are rotated and adjusted to reduce the exposed height of the protective device 7 at the hole mouth, so that the cone structure formed at the lower end of the vertical connecting rod is adapted to the hole diameter. Holding the handle 4, the cone structure formed at the lower end of the vertical connecting rod of the protective device is embedded into the hole mouth, and the triangular connecting frame 2 is fixed to the hole mouth and slightly higher than the hole mouth. At the same time, the protective mesh 1 completely covers the hole mouth to prevent the rock from falling from the hole mouth and people from stepping on it.
[0032] The utility model adopts a retractable inverted vertebral structure made of rods, which reduces the amount of materials used, and relies on the gravity of the structure to keep the top surface parallel to the ground surface, effectively preventing people from tripping and falling due to the convex or uneven surface protection. The safety protection device is easy to make, simple in structure, easy to use, flexible, and can be disassembled and reused, which improves the protection effect of the hole and effectively reduces the risk of rock falling and people stepping on the air.
Claims
1. A safety protection device for deep holes in open-pit mines, characterized in that: It comprises a horizontally arranged protective mesh (1), wherein a horizontally arranged triangular connection frame (2) is provided at the middle position of the bottom surface of the protective mesh (1), and three vertical connection rods (3) are provided below the triangular connection frame (2), the top ends of the three vertical connection rods (3) are respectively connected to three corner points of the triangular connection frame (2), and the bottom ends of the three vertical connection rods (3) are connected to one point to form an inverted cone structure; The vertical connecting rod (3) is a retractable structure, the top ends of the three vertical connecting rods (3) are movably connected to the three corner points of the triangular connecting frame (2) via connecting pieces, and the bottom ends of the three vertical connecting rods (3) are movably connected to one point via connecting pieces; The vertical connecting rod (3) comprises a hollow sleeve (302), both ends of the sleeve (302) are respectively connected to threaded rods (303), and the sleeve (302) is threadedly connected to the threaded rod (303).
2. The deep hole opening safety protection device for open-pit mines according to claim 1 is characterized in that: First connection rings (201) are respectively provided at the corner points of the triangular connection frame (2), a second connection ring (301) is provided at the top end of the vertical connection rod (3), and the first connection ring (201) and the second connection ring (301) are connected via a first movable fastener (202).
3. The deep hole opening safety protection device for open-pit mines according to claim 2 is characterized in that: The first movable fastener (202) is a safety buckle.
4. The deep hole opening safety protection device for open-pit mines according to claim 1 is characterized in that: A third connecting ring (304) is provided at the bottom end of the vertical connecting rod (3), and the three third connecting rings (304) are connected via a second movable fastener (305).
5. The deep hole opening safety protection device for open-pit mines according to claim 4 is characterized in that: The second movable fastener (305) is a connecting rope or a safety buckle.
6. The deep hole opening safety protection device for open-pit mines according to claim 1 is characterized in that: A handle (4) is provided on the top surface of the protective mesh (1).
7. The deep hole opening safety protection device for open-pit mines according to claim 1 is characterized in that: The protective mesh (1) is circular.
8. The deep hole opening safety protection device for open-pit mines according to claim 1 is characterized in that: The protective mesh (1) is movably connected to the triangular connection frame (2).