Mining mine safety protection supporting frame

Abstract

The utility model discloses a mining mine safety protection supporting frame, and relates to the technical field of mine protection supporting frames, the mining mine safety protection supporting frame comprises an arc-shaped arch frame and two supporting leg frames, the two supporting leg frames are fixed through clamping assemblies respectively, and limiting mechanisms are arranged on the supporting leg frames. The limiting mechanism is used for preventing the arc-shaped arch frame from moving on the supporting leg frame, the limiting mechanism comprises an arc-shaped adjusting groove formed in the outer wall of the supporting leg frame, an arc-shaped sliding block is slidably connected to the inner wall of the arc-shaped adjusting groove, and ejector blocks are fixedly installed at the two ends of the arc-shaped sliding block correspondingly. According to the supporting frame, the limiting mechanism is arranged, the stability of connection between the arc-shaped arch frame and the supporting leg frame can be improved through the limiting mechanism, the phenomenon that the arc-shaped arch frame and the supporting leg frame slip and shift is reduced, and then the stability and the supporting strength of the supporting frame are improved; and the safety of mine operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine protection support frames, in particular to a safety protection support frame for mining mines. Background Technique

[0002] In the field of mining, the safety protection support frame of a mine is an important device for ensuring operation safety and maintaining the stability of the mine structure. Traditionally, U-shaped steel three-center arch supports are often used as the main support structure in mining mines. This support is composed of three mutually inscribed arcs, including an arc-shaped arch frame and two support leg frames. Through the splicing of the three arcs, a stable support system is formed, which can effectively resist the pressure of ore and rock and ensure the stability of the mine working face.

[0003] However, there are certain stability and reliability problems at the splicing joints of traditional U-shaped steel three-center arch supports. Specifically, the arc-shaped arch frame and the side support leg frames are usually placed by overlapping and fixed with bolts on the clamping components. Although this fixing method is simple and fast, during long-term use, especially in the complex and changeable working environment in the mine (such as the frequent passing of transport trolleys, the dynamic change of ore and rock pressure, etc.), it is easy to cause resonance and micro-vibrations, resulting in a slight but cumulative movement or deviation of the position of the arc-shaped arch frame on the support leg frames. This change in position may not only weaken the overall strength and stability of the support frame, but also affect the bearing capacity of the support frame, thus posing a potential threat to the safety of mine operations. To solve the above problems and improve the stability and reliability of the safety protection support frame for mining mines, this device proposes a safety protection support frame for mining mines. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and propose a safety protection support frame for mining mines.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A safety protection support frame for mining mines includes an arc-shaped arch frame and two support leg frames. The two support leg frames are respectively fixed through clamping components. A limiting mechanism is arranged on the support leg frames, and the limiting mechanism is used to prevent the arc-shaped arch frame from shifting on the support leg frames;

[0007] The limiting mechanism includes an arc-shaped adjustment groove opened on the outer wall of the support leg frame. An arc-shaped slider is slidably connected to the inner wall of the arc-shaped adjustment groove. The two ends of the arc-shaped slider are respectively fixedly installed with top blocks. The top blocks are placed in contact with the ends of the arc-shaped arch frame. Top pressing components are respectively arranged on the opposite side walls of the support leg frames, and the two groups of top pressing components are respectively used to press the top blocks against the end walls of the arc-shaped arch frame.

[0008] The above technical solution further includes: One set of the top pressing components includes an adjusting plate fixedly installed on the side wall of the arc-shaped arch frame. A threaded hole is formed in the adjusting plate, and an adjusting screw is threadedly connected to the inner wall of the threaded hole. The end of the adjusting screw is in contact with the outer wall of the top block.

[0009] A leveling component is installed at the bottom of the support leg frame. The leveling component includes a connecting block fixedly installed on the bottom wall of the support leg frame. A ball groove is formed in the bottom wall of the connecting block, and a ball head connecting rod is rotatably connected to the inner wall of the ball groove. The bottom end of the ball head connecting rod is fixedly connected to a bottom plate, and the bottom plate is fixed to the ground through anchor bolts.

[0010] Mounting plates are symmetrically installed on the side walls of the support leg frame. Mounting through holes are formed in the mounting plates. The adjacent two support leg frames are connected into an integral body through a connecting component. The connecting component includes a connecting plate. Connecting screws are respectively fixedly connected to both ends of the connecting plate. The ends of the connecting screws movably penetrate through the mounting through holes on the mounting plates and are locked and fixed through nuts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, a limiting mechanism is provided. By means of the provided limiting mechanism, the connection stability between the arc-shaped arch frame and the support leg frame can be improved, the phenomenon of slippage and displacement between the arc-shaped arch frame and the support leg frame can be reduced, and further the stability and support strength of the support frame can be improved, and the safety of mine operation can be enhanced.

[0013] 2. In the present utility model, a leveling base is provided at the bottom of the support leg frame. Through the leveling base, the installation between the bottom end of the support leg frame and the mine bottom wall can be facilitated, and further the installation of the support frame by construction workers can be facilitated. Description of the Drawings

[0014] Figure 1 is a schematic exploded view of a safety protection support frame for a mining mine proposed by the present utility model;

[0015] Figure 2 is a schematic diagram of the first overall structure of a safety protection support frame for a mining mine;

[0016] Figure 3 is a schematic diagram of the second overall structure of a safety protection support frame for a mining mine;

[0017] Figure 4 is Figure 1 the enlarged structural schematic diagram at A in

[0018] Figure 5 is Figure 3Schematic diagram of the enlarged structure at B in the [Chinese context].

[0019] In the figure:

[0020] 10. Arc-shaped arch frame; 20. Support leg frame; 21. Bottom plate; 22. Ball head connecting rod; 23. Connecting block; 24. Mounting plate; 25. Connecting plate; 26. Connecting screw; 30. Clamping assembly; 41. Top block; 42. Arc-shaped slider; 43. Adjusting screw; 44. Adjusting plate; 45. Arc-shaped adjusting groove. Detailed implementation manner

[0021] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] Referring to the attached Figures 1-5 , a safety protection support frame for a mining mine proposed by the present utility model includes an arc-shaped arch frame 10 and two support leg frames 20. The two support leg frames 20 are respectively fixed through a clamping assembly 30. A limiting mechanism is provided on the support leg frame 20, and the limiting mechanism is used to prevent the arc-shaped arch frame 10 from shifting on the support leg frame 20;

[0024] The limiting mechanism includes an arc-shaped adjusting groove 45 opened on the outer wall of the support leg frame 20. The inner wall of the arc-shaped adjusting groove 45 is slidably connected with an arc-shaped slider 42. Both ends of the arc-shaped slider 42 are respectively fixedly installed with a top block 41, and the top block 41 is placed close to the end of the arc-shaped arch frame 10. Among them, the provided limiting mechanism can be used to improve the stability after the fixation between the arc-shaped arch frame 10 and the support leg frame 20, and reduce the occurrence of the phenomenon that the arc-shaped arch frame 10 shifts on the support leg frame 20.

[0025] Top pressing components are respectively arranged on the opposite side walls of the support leg frame 20. The two groups of top pressing components are respectively used to press the top block 41 against the end wall of the arc-shaped arch frame 10. One group of top pressing components includes an adjusting plate 44 fixedly installed on the side wall of the arc-shaped arch frame 10. A threaded hole is opened on the adjusting plate 44, and the inner wall of the threaded hole is threadedly connected with an adjusting screw 43. The end of the adjusting screw 43 is in contact with the outer wall of the top block 41. Among them, when limiting the installation position of the arc-shaped arch frame 10, the adjusting screw 43 can be rotated. The thread on the outer wall of the adjusting screw 43 meshes with the thread on the inner wall of the adjusting plate 44, so as to drive the end of the adjusting screw 43 to move towards the outer wall of the top block 41 until the outer wall of the top block 41 is tightly pressed against the end wall of the arc-shaped arch frame 10. At this time, under the limiting action of the top block 41, the phenomenon that the arc-shaped arch frame 10 moves downward on the support leg frame 20 can be reduced, and the stability of the installation between the arc-shaped arch frame 10 and the support leg frame 20 can be improved.

[0026] A leveling component is installed at the bottom of the support leg frame 20. The leveling component includes a connection block 23 fixedly installed on the bottom wall of the support leg frame 20. A ball groove is formed on the bottom wall of the connection block 23. The inner wall of the ball groove is rotatably connected to a ball head connecting rod 22. The bottom end of the ball head connecting rod 22 is fixedly connected to a bottom plate 21. The bottom plate 21 is fixed to the ground through anchor bolts. Among them, in order to enable the bottom end of the support leg frame 20 to adapt to the terrain of the bottom wall inside the mine, the installation angle of the bottom plate 21 can be adjusted here. That is, when installing and fixing the support leg frame 20, by rotating the bottom plate 21, the bottom wall of the bottom plate 21 can be made to contact the bottom wall inside the mine, and then the bottom plate 21 is fixed to the ground through anchor bolts.

[0027] Mounting plates 24 are symmetrically installed on the side walls of the support leg frame 20. Mounting through holes are formed on the mounting plates 24. Adjacent support leg frames 20 are connected into one body through a connection component. The connection component includes a connection plate 25. The two ends of the connection plate 25 are respectively fixedly connected to connection screws 26. The ends of the connection screws 26 movably penetrate through the mounting through holes on the mounting plates 24 and are locked and fixed through nuts. Among them, in order to improve the stability of multiple support frames, the support leg frames 20 on multiple support frames can be connected into one body through the connection component, thereby improving the overall stability of the support frame.

[0028] In this embodiment, the working principle of the device is as follows: When splicing the arc-shaped arch frame 10 and the support leg frame 20, the position of the arc-shaped arch frame 10 on the support leg frame 20 can be limited by the limiting mechanism in the device, so as to reduce the phenomenon that the arc-shaped arch frame 10 shifts on the support leg frame 20 due to the external environment during the use of the device, improve the installation stability between the arc-shaped arch frame 10 and the support leg frame 20, and further improve the safety of the construction environment in the mine.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A safety protection support frame for a mining mine, comprising an arc-shaped arch frame (10) and two support leg frames (20), and the two support leg frames (20) are respectively fixed by clamping assemblies (30), characterized in that, A limiting mechanism is provided on the support leg frame (20), and the limiting mechanism is used to prevent the arc-shaped arch frame (10) from shifting on the support leg frame (20). The limiting mechanism includes an arc-shaped adjustment groove (45) opened on the outer wall of the support leg frame (20). An arc-shaped slider (42) is slidably connected to the inner wall of the arc-shaped adjustment groove (45). Top blocks (41) are respectively and fixedly installed at both ends of the arc-shaped slider (42). The top blocks (41) are placed in close contact with the ends of the arc-shaped arch frame (10). Top pressing components are respectively arranged on the opposite side walls of the support leg frame (20), and the two groups of top pressing components are respectively used to press the top blocks (41) against the end walls of the arc-shaped arch frame (10).

2. The safety protection support frame for a mining mine according to claim 1, characterized in that, One of the groups of top pressing components includes an adjustment plate (44) fixedly installed on the side wall of the arc-shaped arch frame (10). A threaded hole is opened on the adjustment plate (44), and an adjustment screw rod (43) is threadedly connected to the inner wall of the threaded hole. The end of the adjustment screw rod (43) is in contact with the outer wall of the top block (41).

3. The safety protection support frame for a mining mine according to claim 2, characterized in that, A leveling component is installed at the bottom of the support leg frame (20). The leveling component includes a connection block (23) fixedly installed on the bottom wall of the support leg frame (20). A ball groove is opened on the bottom wall of the connection block (23), and a ball head connecting rod (22) is rotatably connected to the inner wall of the ball groove. The bottom end of the ball head connecting rod (22) is fixedly connected to a bottom plate (21), and the bottom plate (21) is fixed to the ground through anchor bolts.

4. The safety protection support frame for a mining mine according to claim 3, characterized in that, Mounting plates (24) are symmetrically installed on the side walls of the support leg frame (20). Mounting through holes are opened on the mounting plates (24). Adjacent support leg frames (20) are connected into one body through a connection component. The connection component includes a connection plate (25). Connection screw rods (26) are respectively and fixedly connected to both ends of the connection plate (25). The ends of the connection screw rods (26) movably penetrate through the mounting through holes on the mounting plates (24) and are locked and fixed through nuts.

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