Mine shaft safety door

Abstract

A mine vertical shaft safety door comprises a vertical shaft, a safety door body is installed in the vertical shaft, and the safety door body comprises a foundation, a supporting rod, a supporting plate and a lifting assembly used for lifting the supporting rod and the supporting plate; the multiple supporting rods and the multiple supporting plates are arranged, the middle of the foundation is hollow, the multiple supporting rods are arranged in the foundation in a linear array shape, the multiple supporting plates are fixedly installed at the tops of the supporting rods in a linear array shape, a synchronous shaft is rotationally installed on the inner wall of the foundation, and the synchronous shaft is fixedly connected with the row of supporting rods. The weight entering the vertical shaft is limited through the lifting assembly, the vertical shaft can be entered only after the specified weight is reached, and dangerous accidents caused by the fact that a single worker enters the vertical shaft are avoided.

Description

Technical Field

[0001] The utility model relates to the field of mine safety, in particular to a mine shaft safety door. Background Art

[0002] A mine shaft, also known as a vertical tunnel, is a tunnel excavated through the ground, serving underground mining operations and leading directly to the surface. Mine shaft construction has a long history. With the development of the mining industry, shaft construction technology and scale have continuously improved and expanded. Currently, with advancements in science and technology and continuous innovations in mining technology, the construction and operation of shafts are also constantly improving. At the same time, the environmental protection and sustainable development of shafts are receiving increasing attention.

[0003] Shaft maintenance and management are crucial to safe mine production. Regular inspections are required to ensure the integrity of the shaft's support structures, hoisting equipment, and ventilation systems, and to promptly address potential safety hazards. Furthermore, improved drainage and ventilation are essential to ensure a safe and comfortable underground working environment.

[0004] When mine shaft safety doors are in use, they are mostly raised and lowered by manually controlled motors. Workers can enter the mine shaft at will, which may pose a threat to their personal safety and pose a certain threat to the data security of the mine. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the lifting and lowering of the safety door may threaten the personal safety of workers, and provide a mine shaft safety door.

[0006] The technical solution adopted by the utility model to solve the technical problem is a mine shaft safety door, comprising a shaft, a safety door installed inside the shaft, the safety door comprising a foundation, a support rod, a support plate and a lifting assembly for lifting the support rod and the support plate;

[0007] There are multiple support rods and support plates, the middle part of the foundation is hollow, multiple support rods are arranged in a linear array in the foundation, multiple support plates are fixedly installed on the top of the support rods in a linear array, and a synchronization shaft is rotatably installed on the inner wall of the foundation, and the synchronization shaft is fixedly connected to a row of support rods.

[0008] Furthermore, the plurality of support rods are divided into two rows and symmetrically distributed inside the foundation, two synchronization shafts are provided and symmetrically distributed on the inner wall of the foundation, and one synchronization shaft corresponds to one row of support rods.

[0009] Furthermore, the lifting components are provided in two symmetrical groups, and the lifting components are fixedly connected to the support rods, and the lifting directions of the support rods in each row by the lifting components are symmetrical to each other.

[0010] Furthermore, the lifting assembly includes a first fixed frame, a second fixed frame, a third fixed frame and a connecting plate, the second fixed frame is fixedly installed on the top of the foundation, and the first fixed frame, the second fixed frame and the third fixed frame are rotatably connected to the connecting plate in sequence.

[0011] Furthermore, the lifting assembly also includes a side clamp block, a telescopic rod and a drive plate. The side clamp block is fixedly mounted on the side of the first fixed frame. A rotating shaft is provided on the second fixed frame. The drive plate is rotatably connected to the rotating shaft. Both the side clamp block and the drive plate have hook grooves. One end of the telescopic rod is sleeved on the side clamp block and the other end is sleeved on the drive plate.

[0012] Furthermore, a fixed shaft is provided on the side of the support rod, and a slot for limiting the fixed shaft is provided on the driving plate.

[0013] Furthermore, the lowering assembly also includes a steel cable, a turntable, a counterweight and a rotating shaft. The rotating shaft is rotatably installed on the side of the second fixed frame, and the turntable is rotatably sleeved on the rotating shaft. The steel cable is slidably connected to the inner wall of the turntable, and one end of the steel cable is connected to the counterweight and the other end is connected to the support rod.

[0014] The utility model has the following beneficial technical effects:

[0015] The utility model provides a mine shaft safety door, which limits the weight of people entering the shaft through the lifting component. People can enter only when they reach the specified weight, thus avoiding dangerous accidents when a worker enters the shaft alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a mine shaft safety door of the utility model;

[0017] Figure 2 This is a schematic diagram of a safety door structure of an embodiment of a mine shaft safety door of the present utility model;

[0018] Figure 3 This is a partial longitudinal sectional schematic diagram of a safety door structure of an embodiment of a mine shaft safety door of the utility model;

[0019] Figure 4 This is a schematic diagram of a lifting assembly structure of an embodiment of a mine shaft safety door of the present utility model;

[0020] Figure 5 It is a schematic diagram of the lifting assembly structure of an embodiment of a mine shaft safety door of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Shaft; 2. Safety door; 21. Foundation; 22. Support rod; 23. Support plate; 24. Lifting assembly; 241. First fixed frame; 242. Side block; 243. Telescopic rod; 244. Second fixed frame; 245. Third fixed frame; 246. Connecting plate; 247. Drive plate; 248. Rotating shaft; 249. Fixed shaft; 2410. Steel cable; 2411. Turntable; 2412. Counterweight; 2413. Rotating shaft; 25. Synchronous shaft. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1 to 5 This embodiment includes a shaft 1 and a safety door 2 installed inside the shaft 1.

[0025] The safety door 2 includes a foundation 21 , a plurality of support rods 22 , a plurality of support plates 23 and two symmetrically arranged lifting assemblies 24 .

[0026] The foundation 21 is fixedly installed inside the shaft 1, and the middle portion of the foundation 21 is hollow for arranging support rods 22 and support plates 23. Synchronizing shafts 25 are symmetrically arranged at the edges of the hollow foundation 21 on both sides. Multiple support rods 22 are arranged in a linear array within the foundation 21, and multiple support plates 23 are fixedly installed above the support rods 22 in a linear array, with the support rods 22 and support plates 23 being perpendicular to each other. Specifically, the multiple support rods 22 are symmetrically distributed in two rows within the foundation 21, corresponding to the two synchronous shafts 25. One synchronous shaft 25 passes through a row of support rods 22 and is fixedly connected thereto. Similarly, the support plates 23 are also divided into two rows and fixed to the support rods 22. Two symmetrically arranged lifting assemblies 24 are installed on one side of the foundation 21.

[0027] The lifting assembly 24 includes a first fixing frame 241 , a side block 242 , a telescopic rod 243 , a second fixing frame 244 , a third fixing frame 245 , a connecting plate 246 , a driving plate 247 , a steel cable 2410 , a turntable 2411 , a counterweight 2412 and a rotating shaft 2413 .

[0028] There are three connecting plates 246 arranged parallel to each other. The second fixed frame 244 is fixedly installed on the top of the foundation 21. The first fixed frame 241, the second fixed frame 244, and the third fixed frame 245 are rotatably connected to the connecting plate 246 in sequence, that is, the first fixed frame 241 is connected to the rightmost side of the connecting plate 246 through an axis, the second fixed frame 244 is connected to the middle part of the connecting plate 246 through an axis, and the third fixed frame 245 is connected to the leftmost side of the connecting plate 246 through an axis.

[0029] The side clamping block 242 is fixedly mounted on the side of the first fixed frame 241. The second fixed frame 244 is provided with a rotating shaft 248 on the side facing the support rod 22. The drive plate 247 is rotatably connected to the rotating shaft 248. Both the side clamping block 242 and the drive plate 247 have hook grooves, with the hook groove of the drive plate 247 located on the same side as the side clamping block 242. One end of the telescopic rod 243 is inserted into the hook groove of the side clamping block 242, and the other end is inserted into the hook groove of the drive plate. In addition, a fixed shaft 249 is provided on the side of the support rod 22 in the row closest to the lifting assembly 24. The drive plate 247 has a slot that engages the fixed shaft 249.

[0030] The two driving plates 247 respectively limit the two rows of support rods 22. When the fixed axis 249 of the support rod 22 is stuck in the slot of the driving plate 247, the support rod 22 is restricted and the two rows of support rods 22 are in a state parallel to the ground. When they are not in the slot, the two rows of support rods 22 can be in an open state.

[0031] The rotating shaft 2413 is rotatably mounted on the side of the second fixed frame 244 relative to the side clamping block 242. The rotating disk 2411 is rotatably sleeved on the rotating shaft 2413. The steel cable 2410 is slidably connected to the inner wall of the rotating disk 2411, and one end of the steel cable 2410 is connected to the counterweight 2412, and the other end is connected to the support rod 22. Lubricating oil is applied between the rotating disk 2411 and the rotating shaft 2413 to prevent damage to the rotating disk 2411 and the rotating shaft 2413 due to hard friction between the two during long-term operation. The diameter of the two sides of the rotating disk 2411 is much larger than the diameter in the middle of the rotating disk 2411 to prevent the steel cable 2410 from derailing.

[0032] The implementation principle of a mine shaft safety door in the embodiment of the present utility model is as follows:

[0033] When there are no vehicles or pedestrians passing by, a counterweight 2412 of sufficient weight is selected to connect with the steel cable 2410, and the support plate 22 is pulled up under the action of gravity. At the same time, the fixed shaft 249 on the support plate 22 will also be lifted up. Since the fixed shaft 249 is clamped in the slot of the drive plate 247, it will drive the slot side of the drive plate 247 to lift up. Correspondingly, the slot side of the drive plate 247 will drop. Due to the connection of the telescopic rod 243, under the pull of the telescopic rod 243, the first fixed frame 241 will also drop, and then drive the third fixed frame 245 to rise, so that the support plate 22 and the support plate 23 form a road, and the door composed of the connecting plate 246 and multiple fixed frames will also open.

[0034] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Identical parts are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mine shaft safety door, comprising a shaft (1), characterized in that: A safety door (2) is installed inside the shaft (1), and the safety door (2) includes a foundation (21), a support rod (22), a support plate (23), and a lifting assembly (24) for lifting the support rod (22) and the support plate (23); A plurality of support rods (22) and support plates (23) are provided, the middle of the foundation (21) is hollow, a plurality of support rods (22) are arranged in a linear array in the foundation (21), a plurality of support plates (23) are fixedly installed on the top of the support rods (22) in a linear array, a synchronization shaft (25) is rotatably installed on the inner wall of the foundation (21), and the synchronization shaft (25) is fixedly connected to a row of support rods (22).

2. A mine shaft safety door according to claim 1, characterized in that: The plurality of support rods (22) are divided into two rows and symmetrically distributed inside the foundation (21); two synchronization shafts (25) are provided and symmetrically distributed on the inner wall of the foundation (21); one synchronization shaft (25) corresponds to one row of support rods (22).

3. A mine shaft safety door according to claim 1, characterized in that: The lifting components (24) are provided in two symmetrical groups, and the lifting components (24) are fixedly connected to the support rods (22), and the lifting directions of the support rods (22) in each row by the lifting components (24) are symmetrical to each other.

4. A mine shaft safety door according to claim 1, characterized in that: The lifting assembly (24) includes a first fixed frame (241), a second fixed frame (244), a third fixed frame (245) and a connecting plate (246), wherein the second fixed frame (244) is fixedly installed on the top of the foundation (21), and the first fixed frame (241), the second fixed frame (244) and the third fixed frame (245) are rotatably connected to the connecting plate (246) in sequence.

5. A mine shaft safety door according to claim 1, characterized in that: The lifting assembly (24) further includes a side clamping block (242), a telescopic rod (243) and a driving plate (247), wherein the side clamping block (242) is fixedly mounted on a side surface of the first fixed frame (241), a rotating shaft (248) is provided on the second fixed frame (244), and the driving plate (247) is rotatably connected to the rotating shaft (248), and both the side clamping block (242) and the driving plate (247) have hook grooves, and one end of the telescopic rod (243) is sleeved on the side clamping block (242) and the other end is sleeved on the driving plate (247).

6. A mine shaft safety door according to claim 1, characterized in that: A fixed shaft (249) is provided on the side of the support rod (22), and a slot for limiting the fixed shaft (249) is provided on the drive plate (247).

7. A mine shaft safety door according to claim 1, characterized in that: The lowering assembly (24) further includes a steel cable (2410), a turntable (2411), a counterweight (2412) and a rotating shaft (2413), wherein the rotating shaft (2413) is rotatably mounted on the side of the second fixed frame (244), and the turntable (2411) is rotatably sleeved on the rotating shaft (2413), and the steel cable (2410) is slidably connected to the inner wall of the turntable (2411), and one end of the steel cable (2410) is connected to the counterweight (2412), and the other end is connected to the support rod (22).

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