Foldable barrier for coal mine underground

Abstract

The utility model discloses a kind of foldable railings in underground coal mine, involve railing technical field.The foldable railing includes base, first railing, second railing, turnover frame and connecting rod, motor is configured in the base, the side of the first railing is connected with the motor, the other side is connected with the second railing.The one end of the turnover frame is rotatably connected with the first railing, the other end is rotatably connected with the second railing;The one end of the connecting rod is rotatably connected with the base, the other end is rotatably connected with the turnover frame;The motor drives the first railing to rotate, and cooperate with the turnover frame, connecting rod changes the included angle between the first railing and the second railing.The utility model in first railing, second railing and turnover frame cooperate, can form the posture change of stretching or folding, effectively remind and block the passage of pedestrian, track car, and when retracting, avoid occupying the space in roadway by folding.

Description

Technical Field

[0001] This utility model relates to the field of railing technology, and in particular to a foldable railing for underground coal mines. Background Technology

[0002] As a crucial link in mine production, underground transportation systems in coal mines typically utilize overhead passenger vehicles (aerial passenger transport devices) and railcars (such as locomotives and mine cars) to transport personnel and materials. However, at intersections of roadways, the convergence of multiple transport lines leads to spatial and temporal conflicts between vehicles and personnel traveling in different directions. Current safety measures at roadway intersections mostly employ mechanical barriers, often using fixed metal structures or hydraulic lifting devices. While these provide some obstruction, their bulky size and significant space occupation are becoming increasingly prominent issues. Traditional barriers usually require pillars, beams, and drive mechanisms, and their overall width and height must cover the roadway cross-section to prevent overrunning, resulting in a substantial reduction in the effective passage space of the roadway after installation. Utility Model Content

[0003] In view of the problem that the existing railings have a large overall structure and occupy working space in the tunnel after installation, this utility model provides a foldable railing for underground coal mines.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] A foldable guardrail for underground coal mines, characterized in that it comprises a base, a first guardrail, a second guardrail, a flipping frame, and a connecting rod. A motor is disposed within the base. One side of the first guardrail is drive-connected to the output shaft of the motor, and the other side is rotatably connected to the second guardrail. One end of the flipping frame is rotatably connected to the first guardrail, and the other end is rotatably connected to the second guardrail. The connecting rod is located above the first and second guardrails, with one end rotatably connected to the base and the other end rotatably connected to the flipping frame. The motor drives the first guardrail to rotate, and cooperates with the flipping frame and the connecting rod to change the angle between the first and second guardrails.

[0006] Furthermore, a first connecting portion is provided on the side wall of the first railing adjacent to the second railing, and a second connecting portion is provided on the side wall of the second railing adjacent to the first railing, the second connecting portion being adapted to the first connecting portion.

[0007] Furthermore, the first connecting part is L-shaped and located in the middle of the side wall of the first railing, and the lower part of the first connecting part has a through hole.

[0008] Furthermore, the second connecting part is L-shaped, and the two second connecting parts are symmetrically fixed on the side wall of the second railing. The lower part of the two second connecting parts has a through second hole. The first connecting part is inserted into the gap between the two second connecting parts, and the first through hole and the second through hole are arranged coaxially.

[0009] Furthermore, a plurality of limiting blocks are provided on the side wall of the first railing adjacent to the second railing, and each limiting block is adjacent to the first connecting part.

[0010] Furthermore, the flipping frame includes a first support and a second support, the first support and the second support being rotatably connected, the lower part of the first support being rotatably connected to the first railing, and the lower part of the second support being rotatably connected to the second railing.

[0011] Furthermore, the first support has two legs, and the first railing is located between the two legs of the first support; the second support also has two legs, and the second railing is located between the two legs of the second support.

[0012] Furthermore, a connecting plate is fixed on the side of the first bracket away from the second bracket, and the connecting rod is rotatably connected to the connecting plate.

[0013] Furthermore, the connecting plate is arc-shaped.

[0014] The beneficial effects of this utility model are: the first railing, the second railing, and the flipping frame cooperate to form an extended or folded posture change. When extended, it can form a conspicuous physical barrier, effectively reminding and blocking the passage of pedestrians and railcars. When folded, it can avoid occupying the working space in the alley. Moreover, the overall structure is compact and easy to operate and use. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic diagram of the structural principle of one embodiment of this utility model.

[0016] Figure 2 As shown Figure 1 The front view.

[0017] Figure 3 The diagram shows the structure of the first and second railings in their folded state.

[0018] Figure 4 As shown Figure 3 A side view.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. First railing; 3. Second railing; 4. Connecting rod; 5. First bracket; 6. Second bracket; 7. Connecting plate; 8. First connecting part; 9. Second connecting part; 10. Limiting block. Detailed Implementation

[0020] This utility model discloses a foldable railing for underground coal mines. The following describes one embodiment of this utility model in detail with reference to the accompanying drawings.

[0021] Combination Figure 1 and Figure 2 As shown, a foldable guardrail for underground coal mines includes a base 1, a first guardrail 2, a second guardrail 3, a tilting frame, and a connecting rod 4. A motor is fixedly connected inside the base 1, and its bottom is fixedly connected to the ground. The inner end of the first guardrail 2 is driven by the output shaft of the motor, allowing it to rotate relative to the base 1. The right side of the first guardrail 2 is also driven by the output shaft of the motor, allowing it to rotate relative to the base 1. A first connecting part 8 is fixedly connected to the middle of the left outer end wall of the first guardrail 2. The first connecting part 8 is L-shaped and has a through hole at its lower part. Two limiting blocks 10 protrude outward from the left outer end wall of the first guardrail 2, located on either side of the first connecting part 8. The second guardrail 3 is located to the left of the first guardrail 2. Two symmetrical second connecting parts 9 are fixedly connected to the right outer end wall of the second guardrail 3, with through holes at their lower parts. The first connecting part 8 is adapted to be inserted into the gap between the two second connecting parts 9, and the first through hole and the second through hole are arranged coaxially, with a pin inserted into the first through hole and the second through hole respectively.

[0022] The top of the first railing 2 and the second railing 3 are equipped with a flip-up frame, which includes a first support 5 and a second support 6, rotatably connected. The first support 5 has two legs, with the first railing 2 located between the two legs, and the first support 5 is rotatably connected to the first railing 2 via the legs. The second support 6 has two legs, with the second railing 3 located between the two legs, and the second support 6 is rotatably connected to the second railing 3 via the legs. Two arc-shaped connecting plates 7 are fixedly connected to the right side of the first support 5, with a gap between them, and a through third hole on each connecting plate 7. A connecting rod 4 is located above the first railing 2, with its left end fitting into the gap between the two connecting plates 7 and rotatably connected to them, and its right end rotatably connected to the base 1.

[0023] Combination Figure 3 and Figure 4As shown, in use, the base 1 is fixedly connected to the ground. When it is necessary to block pedestrians or railcars, the motor acts as a power source to drive the first railing 2 to rotate. The connecting rod 4 is rotatably connected to the first railing 2 and the second railing 3 through a flipping frame. The first railing 2 is rotatably connected to the second connecting part 9 of the second railing 3 through the first connecting part 8. As the first railing 2 rotates, it drives the connecting rod 4 and the second railing 3 to rotate as the first railing 2 rotates, causing the second railing 3 to gradually extend by changing the angle between the two as the first railing 2 rotates. When the second connecting part 9 of the second railing 3 touches the limiting block 10 on the first railing 2, it is fixed by the action of the flipping frame, so that the first railing 2 and the second railing 3 are arranged horizontally to form a conspicuous physical barrier to remind and block the passage of pedestrians and railcars.

[0024] When passage is initiated, the motor acts as a power source, driving the first barrier 2 to rotate in the opposite direction. The connecting rod 4 is rotatably connected to the first barrier 2 and the second barrier 3 via a flipping frame. The first barrier 2 is rotatably connected to the second connecting part 9 of the second barrier 3 via the first connecting part 8. As the first barrier 2 rotates, it drives the connecting rod 4 and the second barrier 3 to rotate as well. This causes the second connecting part 9 on the second barrier 3 to disengage from the limiting block 10 as the first barrier 2 rotates, and gradually folds under the action of the flipping frame. Finally, the first barrier 2, the second barrier 3, and the connecting rod 4 are rotated to the vertical direction to avoid occupying the working space in the roadway.

[0025] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A foldable railing for underground coal mines, characterized in that: The device includes a base (1), a first railing (2), a second railing (3), a flipping frame, and a connecting rod (4). The base (1) is equipped with a motor. One side of the first railing (2) is connected to the output shaft of the motor, and the other side is rotatably connected to the second railing (3). One end of the flipping frame is rotatably connected to the first railing (2), and the other end is rotatably connected to the second railing (3). The connecting rod (4) is located above the first railing (2) and the second railing (3), and one end is rotatably connected to the base (1), and the other end is rotatably connected to the flipping frame. The motor drives the first railing (2) to rotate, and cooperates with the flipping frame and the connecting rod (4) to change the angle between the first railing (2) and the second railing (3).

2. The foldable railing for underground coal mines according to claim 1, characterized in that: A first connecting part (8) is provided on the side wall of the first railing (2) adjacent to the second railing (3), and a second connecting part (9) is provided on the side wall of the second railing (3) adjacent to the first railing (2). The second connecting part (9) is adapted to the first connecting part (8).

3. A foldable railing for underground coal mines according to claim 2, characterized in that: The first connecting part (8) is L-shaped and located in the middle of the side wall of the first railing (2). The lower part of the first connecting part (8) has a through hole.

4. A foldable railing for underground coal mines according to claim 3, characterized in that: The second connecting part (9) is L-shaped, and the two second connecting parts (9) are symmetrically fixed on the side wall of the second railing (3). The lower part of the two second connecting parts (9) has a through second hole; the first connecting part (8) is inserted into the gap between the two second connecting parts (9), and the first through hole and the second through hole are arranged coaxially.

5. A foldable railing for underground coal mines according to claim 2, characterized in that: A plurality of limiting blocks (10) are provided on the side wall of the first railing (2) adjacent to the second railing (3), and each of the limiting blocks (10) is adjacent to the first connecting part (8).

6. A foldable railing for underground coal mines according to claim 1, characterized in that: The flipping frame includes a first support (5) and a second support (6), the first support (5) and the second support (6) are rotatably connected, the lower part of the first support (5) is rotatably connected to the first railing (2), and the lower part of the second support (6) is rotatably connected to the second railing (3).

7. A foldable railing for underground coal mines according to claim 6, characterized in that: The first support (5) has two legs, and the first railing (2) is located between the two legs of the first support (5); the second support (6) also has two legs, and the second railing (3) is located between the two legs of the second support (6).

8. A foldable railing for underground coal mines according to claim 6, characterized in that: A connecting plate (7) is fixed on the side of the first bracket (5) away from the second bracket (6), and the connecting rod (4) is rotatably connected to the connecting plate (7).

9. A foldable railing for underground coal mines according to claim 8, characterized in that: The connecting plate (7) is arc-shaped.

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