Risk avoiding device for coal mining

Abstract

The utility model provides a risk avoiding device for coal mining, and belongs to the technical field of coal mining. Comprising a danger avoiding room and a turnover door rotationally connected to an opening of the danger avoiding room, and further comprises a hand-held assembly, the hand-held assembly comprises an L-shaped handrail arranged in the danger avoiding room, and during danger avoiding, the L-shaped handrail is used for being held by danger avoiding personnel. By arranging the L-shaped handrails, in the danger avoiding process, if the external environment shakes, danger avoiding personnel can hold the L-shaped handrails, so that the body balance is kept, the falling risk is reduced, the safety protection effect of the danger avoiding room is enhanced, and after danger avoiding is finished, if sundries are accumulated due to external vibration, the turnover door is difficult to open from the inside, and the safety of the danger avoiding room is improved. The short rod is moved towards the turnover door and slides in the steel ball with the hole, then the long rod is rotated, the long rod drives the short rod to rotate in the steel ball with the hole, the end of the short rod abuts against the inner side of the turnover door, a lever is formed through the length difference between the long rod and the short rod, the acting force needed for opening the door is reduced, and the turnover door is convenient to open.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a safety device for coal mining. Background Technology

[0002] Coal mining is the process of extracting coal from the earth's strata and transporting it to the surface through underground or open-pit operations. During mining, disasters such as gas explosions, water inrushes, and coal dust explosions occur frequently. Refuge houses, as important facilities to ensure the safety of miners, have emerged. They typically consist of a high-strength outer shell, an oxygen supply system, communication equipment, food and drinking water reserves, and environmental monitoring devices. Their main function is to provide a safe, enclosed space for trapped miners when a coal mine disaster occurs, supplying oxygen, food, and water, monitoring and regulating internal temperature, humidity, and air quality, and maintaining contact with the outside world through communication equipment, allowing miners to await rescue and minimizing casualties caused by the disaster.

[0003] During the evacuation process, due to the lack of hand support devices inside the evacuation house, it is difficult for evacuees to maintain their balance when the outside shakes, posing a risk of falling and potentially threatening their personal safety. There is a need for further optimization of the safety of the evacuation house. Therefore, this application provides an evacuation device for coal mining to meet this need. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a safety device for coal mining to solve the problem that when external shaking occurs, it is difficult for personnel to maintain their balance, and there is a risk of falling, which may threaten their personal safety.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A safety device for coal mining includes a safety house and a rotating door rotatably connected to the opening of the safety house, and further includes:

[0007] The handrail assembly includes an L-shaped handrail installed inside the refuge house, which is used by the refugee to hold onto during evacuation.

[0008] Preferably, the shelter has ventilation holes on its side, and a partition rod is fixed to the inner wall of the ventilation holes.

[0009] Preferably, a protective plate is rotatably connected to the outside of the shelter and at the ventilation hole.

[0010] Preferably, the L-shaped handrail consists of a long rod and a short rod. A mounting plate is fixed to the side of the refuge house near the opening. A perforated steel ball is embedded in the mounting plate and is movably fitted onto the surface of the short rod. A screw rod is movably passed through the end of the long rod away from the opening of the refuge house. The screw rod is fixed to the inner wall of the refuge house. A limit ring is fixed to the surface of the screw rod. A limit plate is attached to the surface of the long rod. A fixing nut is threaded onto the surface of the screw rod. The fixing nut is attached to the surface of the long rod. The fixing nut and the limit ring are symmetrically arranged about the long rod.

[0011] Preferably, the end of the short rod is provided with an extension assembly, the extension assembly including an extension post movably inserted into the end of the short rod, and a fixing bolt is threadedly connected to the surface of the short rod, the end of the fixing bolt abutting against the surface of the extension post.

[0012] Preferably, a top ball is fixed to the end of the extension column, and the surface of the top ball is provided with anti-slip stripes.

[0013] Preferably, a ball sleeve is fixed to the surface of the top ball, and the ball sleeve is a rubber sleeve.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above scheme, by setting up L-shaped handrails, if the external environment shakes during the evacuation process, the evacuees can hold onto the L-shaped handrails to maintain their balance, reduce the risk of falling, and enhance the safety protection effect of the evacuation house.

[0016] By setting up a perforated steel ball, screw, and fixing nut, if external vibrations cause debris to accumulate after the hazard is evacuated, making it difficult to open the flip door from the inside, the fixing nut can be removed first. The short rod can be moved towards the flip door, and the short rod will slide inside the perforated steel ball. Then, the long rod can be rotated, which will drive the short rod to rotate inside the perforated steel ball. The end of the short rod will press against the inside of the flip door. The difference in length between the long and short rods forms a lever, reducing the force required to open the door and making it easier to open the flip door.

[0017] By setting up an extension component, the extension column can be pulled out and fixed during emergency avoidance, increasing the number of gripping points and improving the safety performance of emergency avoidance. When the flip door is difficult to open, the extension column can move the contact point toward the moving end of the flip door, using the lever principle to reduce the opening force and make it easier to open the flip door.

[0018] By setting a top ball and a ball sleeve, the top ball and the ball sleeve are pressed against the inner wall of the flip door. The top ball can disperse the pressure, reduce the direct impact on the surface of the flip door, and reduce damage. The flexible ball sleeve avoids scratching the surface of the flip door and plays a protective role. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0020] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the refuge house of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the handrail component of this utility model;

[0023] Figure 4 This is a cross-sectional view of the L-shaped handrail of this utility model.

[0024] In the diagram: 1. Safe house; 2. Flip-top door; 3. Handrail assembly; 4. Mounting plate; 5. Perforated steel ball; 6. L-shaped handrail; 7. Long rod; 8. Short rod; 9. Screw; 10. Limiting ring; 11. Fixing nut; 12. Extension assembly; 13. Extension column; 14. Fixing bolt; 15. Top ball; 16. Ball sleeve.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0026] The following is a detailed description of a safety device for coal mining provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] like Figures 1-4 As shown, an embodiment of this utility model provides a safety device for coal mining, including a safety house 1 and a flip door 2 rotatably connected to the opening of the safety house 1, and further including:

[0028] The handrail assembly 3 includes an L-shaped handrail 6 installed inside the refuge house 1. During evacuation, the L-shaped handrail 6 is used for the personnel to hold onto. By setting up the L-shaped handrail 6, when the external environment shakes during the evacuation process, the personnel holding the L-shaped handrail 6 can effectively maintain their body balance, reduce the risk of falling, and thus enhance the safety protection effect of the refuge house 1 for personnel, providing a stable support point for miners.

[0029] like Figure 1 and Figure 2 As shown in this embodiment, the side of the refuge house 1 is provided with ventilation holes, and the inner wall of the ventilation holes is fixed with a partition rod. The ventilation holes and partition rods can ensure air circulation inside the refuge house 1 when needed, and prevent people from suffering from oxygen deficiency due to being in a closed space for a long time. The partition rods can prevent large foreign objects from entering the refuge house 1 through the ventilation holes, thus ensuring ventilation and maintaining the safety and cleanliness of the refuge environment.

[0030] like Figure 1 and Figure 2 As shown in this embodiment, a protective plate is rotatably connected to the outside of the refuge house 1 at the ventilation hole. The protective plate can rotate flexibly. When there are dangerous factors such as harmful gases and dust in the outside, closing the protective plate can effectively block pollutants from entering the refuge house 1 and protect the people inside from harm. When the environment is safe and ventilation is required, the protective plate can be opened to cooperate with the ventilation hole and the partition rod to realize air exchange and improve the adaptability of the refuge house 1 to complex external environments.

[0031] like Figure 3 and Figure 4 As shown, in this embodiment, the L-shaped handrail 6 consists of a long rod 7 and a short rod 8. A mounting plate 4 is fixed to the side of the refuge house 1 near the opening. A perforated steel ball 5 is embedded in the mounting plate 4. The perforated steel ball 5 is movably fitted onto the surface of the short rod 8. A screw rod 9 movably passes through the end of the long rod 7 away from the opening of the refuge house 1. The screw rod 9 is fixed to the inner wall of the refuge house 1. A limit ring 10 is fixed to the surface of the screw rod 9. A limit plate is attached to the surface of the long rod 7. A fixing nut 11 is threaded onto the surface of the screw rod 9. The fixing nut 11 is attached to the surface of the long rod 7. The fixing nut 11 and the limiting ring 10 are symmetrically arranged about the long rod 7. Through the cooperation of the perforated steel ball 5, the screw 9 and the fixing nut 11, when the emergency is over and the flip door 2 is difficult to open due to the accumulation of debris caused by external vibration, the fixing nut 11 is removed and the short rod 8 can slide in the perforated steel ball 5. Rotating the long rod 7 can drive the short rod 8 to rotate. The lever structure formed by the length difference between the long rod 7 and the short rod 8 reduces the force required to open the flip door 2, so that the miner can open the flip door 2 smoothly to escape from the emergency room 1 in an emergency.

[0032] like Figure 3 and Figure 4As shown, in this embodiment, the end of the short rod 8 is provided with an extension component 12. The extension component 12 includes an extension column 13 that is movably inserted into the end of the short rod 8. A fixing bolt 14 is threadedly connected to the surface of the short rod 8. The end of the fixing bolt 14 abuts against the surface of the extension column 13. When avoiding danger, the extension column 13 is pulled out and fixed by the fixing bolt 14, which can increase the gripping points and meet the needs of people of different heights or in different postures, further improving the safety performance of avoiding danger. When the flip door 2 is difficult to open, the extension column 13 can move the abutment point of the short rod 8 toward the movable end of the flip door 2, further increasing the lever arm. By utilizing the lever principle, the opening force is reduced more significantly, improving the feasibility of opening the flip door 2.

[0033] like Figure 3 and Figure 4 As shown, in this embodiment, a top ball 15 is fixed to the end of the extension column 13. The surface of the top ball 15 is provided with anti-slip stripes. As a contact component with the inner wall of the flip door 2, the spherical structure of the top ball 15 can transmit the force more evenly. The anti-slip stripes on the surface increase the friction with the inner wall of the flip door 2. When the flip door 2 is opened by lever principle, the top ball 15 is prevented from slipping, ensuring that the force is effectively transmitted and improving the stability and reliability of opening the flip door 2.

[0034] like Figure 3 and Figure 4 As shown in this embodiment, a ball sleeve 16 is fixed to the surface of the top ball 15. The ball sleeve 16 is a rubber sleeve. When the top ball 15 and the ball sleeve 16 abut against the inner wall of the flip door 2, the rubber ball sleeve 16 is soft and can effectively disperse pressure, reduce the direct impact on the surface of the flip door 2, and prevent the flip door 2 from being damaged due to excessive force. At the same time, the flexible ball sleeve 16 can avoid scratching the surface of the flip door 2. While ensuring the smooth opening of the flip door 2, it also plays a good protective role for the flip door 2 and extends its service life.

[0035] Working principle: During the refuge phase, when miners enter the refuge house 1, if the external environment shakes, they can directly hold onto the L-shaped handrail 6 to maintain their balance and reduce the risk of falling. At the same time, if more gripping points are needed, the extension column 13 can be pulled out from the end of the short rod 8 and fixed by tightening the fixing bolt 14 to increase the gripping points and further improve the safety performance of the refuge. At this time, the protective plate at the ventilation hole on the side of the refuge house 1 can be opened as needed to prevent foreign objects from entering while allowing ventilation. Closing the protective plate can protect against external harmful gases, dust, etc.

[0036] When the evacuation is complete, if external vibrations cause debris to accumulate, making it difficult to open the tilting door 2 from the inside, first remove the fixing nut 11 from the screw 9 to release the fixing restriction on the long rod 7. Move the short rod 8 towards the tilting door 2, allowing it to slide and adjust its position within the perforated steel ball 5. Then rotate the long rod 7, which drives the short rod 8 to rotate. The short rod 8 then drives the perforated steel ball 5 to rotate within the mounting plate 4, causing the end of the short rod 8 to abut against the inside of the tilting door 2. The length difference between the long rod 7 and the short rod 8 forms a lever, reducing the effort required to open the door. Force is applied to open the flip door 2. If it is still difficult to open, the extension column 13 can move the abutment point toward the movable end of the flip door 2, further utilizing the lever principle to reduce the opening force. When the extension column 13 at the end of the short rod 8 pushes against the flip door 2, the top ball 15 and the ball sleeve 16 abut against the inner wall of the flip door 2. The top ball 15 disperses the pressure, reduces the direct impact on the surface of the flip door 2, and reduces damage. The flexible rubber ball sleeve 16 avoids scratching the surface of the flip door 2, protects the flip door 2 from damage, and helps the miners escape from the refuge house 1 smoothly.

[0037] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A safety device for coal mining, comprising a safety house (1) and a flip-up door (2) rotatably connected to the opening of the safety house (1), characterized in that, Also includes: The handrail assembly (3) includes an L-shaped handrail (6) installed inside the refuge house (1). When taking refuge, the L-shaped handrail (6) is used for the refugee to hold.

2. The safety device for coal mining according to claim 1, characterized in that, The shelter (1) has ventilation holes on its side, and a partition rod is fixed to the inner wall of the ventilation holes.

3. The safety device for coal mining according to claim 2, characterized in that, The outer side of the shelter (1) and at the ventilation hole are rotatably connected to a protective plate.

4. The safety device for coal mining according to claim 1, characterized in that, The L-shaped handrail (6) consists of a long rod (7) and a short rod (8). A mounting plate (4) is fixed on the side of the shelter (1) near the opening. A perforated steel ball (5) is embedded in the mounting plate (4). The perforated steel ball (5) is movably sleeved on the surface of the short rod (8). The end of the long rod (7) away from the opening of the shelter (1) is movably inserted through a screw (9). The screw (9) is fixed to the inner wall of the shelter (1). A limit ring (10) is fixed on the surface of the screw (9). The limit plate is attached to the surface of the long rod (7). A fixing nut (11) is threaded onto the surface of the screw (9). The fixing nut (11) is attached to the surface of the long rod (7). The fixing nut (11) and the limit ring (10) are symmetrically arranged about the long rod (7).

5. The safety device for coal mining according to claim 4, characterized in that, The end of the short rod (8) is provided with an extension assembly (12), the extension assembly (12) includes an extension post (13) that is movably inserted into the end of the short rod (8), and a fixing bolt (14) is threadedly connected to the surface of the short rod (8), the end of the fixing bolt (14) abutting against the surface of the extension post (13).

6. The safety device for coal mining according to claim 5, characterized in that, The end of the extension column (13) is fixed with a top ball (15), and the surface of the top ball (15) is provided with anti-slip stripes.

7. The safety device for coal mining according to claim 6, characterized in that, The ball (15) is fixed with a ball sleeve (16), which is a rubber sleeve.

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