Novel coal mine tunnel supporting structure

Abstract

The utility model discloses a novel coal mine tunnel supporting structure which comprises an n-shaped shed frame, adjustable supporting legs are arranged at the bottom of the shed frame, and the two sides of the shed frame are connected with side supporting plates arranged in the vertical direction through first telescopic mechanisms. The top of the shed frame is connected with a top supporting plate arranged in the horizontal direction through a second telescopic mechanism. The telescopic supporting legs are arranged, so that the shed frame can adapt to the uneven ground; the shed frame can adapt to different width positions of the roadway by arranging the first telescopic mechanism and the side supporting plate; by arranging a second telescopic mechanism and a top supporting plate, different shapes of the top of the roadway can be adapted; the supporting device can be better fixed with a roadway, and the roadway supporting effect can be enhanced.

Description

Technical Field

[0001] The utility model relates to a new type of supporting structure for coal mine roadways, belonging to the technical field of mining support. Background Technique

[0002] Metal sheds need to be used to support the side walls and roofs of coal mine roadways underground. However, the shapes of existing metal sheds are pre-welded and fixed. In fact, the width dimensions of roadways are slightly variable, especially at positions such as roadway turning points, and the roofs of roadways may also be uneven. There is a problem of insecure installation when installing existing metal sheds, which affects the supporting effect of roadways. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a new type of supporting structure for coal mine roadways to solve the technical problems existing in the above-mentioned prior art.

[0004] The technical solution adopted by the utility model is as follows: a new type of supporting structure for coal mine roadways includes an n-shaped shed frame. An adjustable support leg is arranged at the bottom of the shed frame. Side support plates arranged vertically are connected to both sides of the shed frame through a first telescopic mechanism; a top support plate arranged horizontally is connected to the top of the shed frame through a second telescopic mechanism.

[0005] Preferably, the number of the first telescopic mechanisms connected to each side support plate is set to be more than 2 and is arranged at equal intervals from top to bottom.

[0006] Preferably, a second telescopic mechanism and a top support plate form a top support unit. The number of the top support units is set to be more than 3 and is arranged at equal intervals on the top of the shed frame.

[0007] Preferably, the first telescopic mechanism includes a first rotating rod threadedly connected to one side of the shed frame. One end of the first rotating rod facing the roadway side wall is rotatably connected to a first connecting rod. One end of the first connecting rod facing the roadway side wall is fixed to the side support plate.

[0008] Preferably, the second telescopic mechanism includes a second rotating rod threadedly connected to the top of the shed frame. The upper end of the second rotating rod is rotatably connected to a second connecting rod. The top support plate fixes the upper end of the second connecting rod.

[0009] Preferably, the lower end of the support leg is in a sharp cone shape, and the support leg is threadedly connected to the shed frame.

[0010] Preferably, the lower end of the shed frame is hinged with a mounting shaft, the lower end of the mounting shaft is connected with a wheel, the mounting shaft can rotate relative to the shed frame from the vertically downward direction to the horizontal direction, the shed frame is respectively provided with pin holes corresponding to the horizontal direction and the vertically downward direction of the mounting shaft, the mounting shaft is also correspondingly provided with pin holes, and the mounting shaft is limited on the shed frame by pins.

[0011] Advantages of the utility model:

[0012] 1. Compared with the prior art, in the utility model, the telescopic support legs are arranged to enable the shed frame to adapt to uneven ground; the first telescopic mechanism and the side support plates are arranged to enable the shed frame to adapt to different widths of the roadway; the second telescopic mechanism and the top support plates are arranged to adapt to different shapes of the top of the roadway; the utility model can be better fixed to the roadway and can enhance the effect of roadway support.

[0013] 2. Compared with the prior art, in the utility model, by arranging wheels, a mounting shaft and pins, the wheels are lowered when the shed frame needs to be moved, and the wheels are retracted when the shed frame needs to be fixed, which is convenient for the movement of the shed frame. Description of the drawings

[0014] Figure 1 is the overall structure diagram of the present invention.

[0015] Figure 2 is Figure 1 the enlarged view of part A in

[0016] The reference numerals in the drawings of the specification include: shed frame 1, support leg 2, wheel 3, pin 4, first rotating rod 5, first connecting rod 6, side support plate 7, second rotating rod 8, second connecting rod 9, top support plate 10. Detailed implementation manners

[0017] The present utility model will be further introduced below in conjunction with the drawings and specific embodiments.

[0018] Embodiment 1:

[0019] A new type of coal mine roadway support structure, as Figure 1 shown, includes an n-shaped metal shed frame 1, the shed frame 1 is pre-welded, as Figure 2 shown, the bottom parts of both ends of the shed frame 1 are respectively provided with support legs 2, the lower ends of the support legs 2 are in a sharp cone shape, the upper ends of the support legs 2 are threadedly connected with the lower ends of the shed frame 1, and by rotating the support legs 2, the height of the lower end of the shed frame 1 can be adjusted, so as to adapt to the unevenness of the roadway ground.

[0020] As Figure 1As shown in the figure, both sides of the shed frame 1 are respectively connected with a side support plate 7 arranged vertically through a first telescopic mechanism; the number of the first telescopic mechanisms connected to each side support plate 7 is set to 3 and they are arranged at equal intervals from top to bottom; the first telescopic mechanism includes a first rotating rod 5 threadedly connected to one side of the shed frame 1, the axis of the first rotating rod 5 is arranged horizontally, one end of the first rotating rod 5 facing the side wall of the roadway is rotatably connected with a first connecting rod 6, and one end of the first connecting rod 6 facing the side wall of the roadway is fixed to the side support plate 7. By screwing the first rotating rod 5, the first rotating rod 5 can move left and right relative to one side of the shed frame 1, thereby driving the side support plate 7 to move left and right, so as to adapt to different widths of the roadway.

[0021] As Figure 1 shown in the figure, the top of the shed frame 1 is connected with a top support plate 10 arranged horizontally through a second telescopic mechanism. One second telescopic mechanism and one top support plate 10 form a top support unit, and the number of the top support units is set to 7 and they are arranged at equal intervals on the top of the shed frame 1; the second telescopic mechanism includes a second rotating rod 8 threadedly connected to the top of the shed frame 1, the axis of the second rotating rod 8 is arranged vertically, the upper end of the second rotating rod 8 is rotatably connected with a second connecting rod 9, the top support plate 10 is fixed to the upper end of the second connecting rod 9, and the direction of the top support plate 10 is parallel to the axis direction of the roadway. By screwing the second rotating rod 8, the second rotating rod 8 can move up and down relative to the shed frame 1, thereby driving the top support plate 10 to move up and down, so that each top support plate 10 can be well matched with the top of the roadway.

[0022] In order to facilitate the movement of the shed frame 1, in this embodiment, as Figure 2 shown in the figure, a rectangular groove is opened in the middle of the lower right part of the shed frame 1. The lower end and the right end of the groove penetrate through the bottom and the right side of the shed frame. An installation shaft is hinged inside the groove, a wheel 3 is connected to the lower end of the installation shaft, the installation shaft can rotate relative to the shed frame 1 from the vertically downward direction to the horizontal direction. Corresponding pin holes are respectively arranged on the shed frame 1 when the installation shaft is in the horizontal direction and the vertically downward direction, and corresponding pin holes are also arranged on the installation shaft. When the installation shaft is rotated to the horizontal or vertically downward position, the installation shaft is limited on the shed frame 1 through a pin 4. When it is necessary to move the shed frame 1, the wheel 3 is put down, and when it is necessary to fix the shed frame 1, the wheel 3 is retracted.

[0023] The above is only the specific implementation manner 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 can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A new type of supporting structure for coal mine roadways, characterized in that: It includes an n-shaped trellis. An adjustable support leg is provided at the bottom of the trellis. Both sides of the trellis are connected with vertically arranged side support plates through a first telescopic mechanism; the top of the trellis is connected with a horizontally arranged top support plate through a second telescopic mechanism; the first telescopic mechanism includes a first rotating rod threadedly connected to one side of the trellis. One end of the first rotating rod facing the side wall of the roadway is rotatably connected with a first connecting rod, and one end of the first connecting rod facing the side wall of the roadway is fixed to the side support plate; the second telescopic mechanism includes a second rotating rod threadedly connected to the top of the trellis. The upper end of the second rotating rod is rotatably connected with a second connecting rod, and the top support plate is fixed to the upper end of the second connecting rod.

2. A new type of coal mine roadway support structure according to claim 1, characterized in that: The number of the first telescopic mechanisms connected to each side support plate is set to be more than 2 and is arranged at equal intervals from top to bottom.

3. A novel supporting structure for coal mine roadways according to claim 1, characterized in that: One second telescopic mechanism and one top support plate form a top support unit. The number of the top support units is set to be more than 3 and is arranged at equal intervals on the top of the trellis.

4. A novel supporting structure for coal mine roadways according to claim 1, characterized in that: The lower end of the support leg is in a sharp cone shape, and the support leg is threadedly connected to the trellis.

5. A novel coal mine roadway support structure according to claim 1, characterized in that: The lower end of the trellis is hinged with a mounting shaft. The lower end of the mounting shaft is connected with a wheel. The mounting shaft can rotate relative to the trellis from the vertically downward direction to the horizontal direction. Corresponding pin holes are respectively provided on the trellis when the mounting shaft is in the horizontal direction and the vertically downward direction. Corresponding pin holes are also provided on the mounting shaft. The mounting shaft is limited on the trellis by a pin.

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