Coal mine safety escape device

Abstract

The utility model relates to the technical field of coal mine safety equipment, and discloses a coal mine safety escape device which comprises a plurality of refuge chambers and a protective roof, the outer walls of the refuge chambers are fixedly connected with a rescue chamber, the top end of the rescue chamber is fixedly connected with a lifting channel, the top end of the lifting channel is fixedly connected with an electric power chamber, and the electric power chamber is fixedly connected with the protective roof. A rocker is rotatably connected to and penetrates through the inner wall of the refuge chamber, two hand-cranking wheels are symmetrically and fixedly connected to the outer wall of the rocker, a large gear is fixedly connected to the outer wall of the rocker, a worm, a rotating rod and a lead screw are rotatably connected to the inner wall of the refuge chamber, and a rescue assembly is arranged in the power chamber. According to the escape device, the stability of the whole structure is enhanced through the refuge chamber which is placed in a hexagonal surrounding mode, the rocker is driven by the hand-cranking wheel to rotate, power is amplified and transmitted through meshing of the gear ratio and the worm gear and the worm, opening and closing of the lifting door in the vertical direction are achieved, and the escape device can be stably used under the conditions of no electric power and narrow space.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine safety equipment technical field especially relates to a coal mine safety escape device. BACKGROUND

[0002] In the process of coal mining operation, due to the particularity and complexity of its working environment, many potential safety risks are faced, such as gas explosion, water inrush, fire and other accidents occur from time to time. According to the requirements of "Coal Mine Safety Regulations", when the disaster blocks the escape passage, the miners need to reach the safety facility within the golden 1 hour, and the refuge chamber as the key facility to protect the life safety of miners, its performance and reliability are directly related to the survival probability of miners.

[0003] The traditional refuge chamber usually adopts the flat open or rotary door, the flat open door needs to reserve larger space in front of the refuge chamber when opening, and the rotary door also occupies larger circumferential space in the rotating process, when the coal mine collapses or gas explodes, a large amount of falling stones are easily produced, which blocks the door; Some refuge chambers adopt electric or hydraulic drive system, when the collapse or explosion is serious, the power system inside the coal mine is likely to be damaged and power off, so that the refuge chamber cannot be opened, and the miners can only be trapped in the dangerous area, greatly increasing the risk of casualties. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a coal mine safety escape device, which aims at improving the problem that the opening mode of the door of the traditional refuge chamber is easily affected by the accident and cannot be opened, thereby endangering the safety of miners.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a coal mine safety escape device, comprising a plurality of refuge chambers and a protective roof, the outer wall of the plurality of refuge chambers is fixedly connected with a rescue room, the top end of the rescue room is fixedly connected with a lifting channel, the top end of the lifting channel is fixedly connected with a power room, the inner wall of the refuge chamber is rotatably connected and penetrates a rocker, the outer wall of the rocker is fixedly connected with two hand wheels in a symmetrical manner, the outer wall of the rocker is fixedly connected with a large gear, the inner wall of the refuge chamber is rotatably connected with a worm, a rotary rod and a lead screw, the outer wall of the worm is fixedly connected with a small gear, the outer wall of the rotary rod is fixedly connected with a worm wheel, the outer walls of the rotary rod and the lead screw are both fixedly connected with a belt pulley, the inner wall of the refuge chamber is fixedly connected with a limiting rod, the outer wall of the lead screw is threadedly connected with a lifting door, the outer wall of the refuge chamber is connected with two flat open doors through a hinge, and the inside of the power room is provided with a rescue assembly.

[0006] Preferably, the rescue assembly comprises a motor fixedly connected to the outer wall of the power chamber, an output end of the motor is fixedly connected with a rotating rod, the outer wall of the rotating rod is fixedly connected with a winch and a ratchet wheel, the outer wall of the winch is provided with a pull rope, one end of the pull rope is fixedly connected with a rescue cabin, and the outer wall of the power chamber is rotatably connected with a pawl.

[0007] Preferably, the large gear and the small gear are in meshing connection, the worm and the worm wheel are in meshing connection, and the outer walls of the two belt pulleys are sleeved with a belt.

[0008] Preferably, the inner walls of the refuge chamber and the protective roof are provided with sliding grooves, the lifting door is slidably connected in the sliding grooves, and the left inner wall of the lifting door is slidably connected to the outer wall of the limiting rod.

[0009] Preferably, the top end of the refuge chamber is fixedly connected with a plurality of protective beams, the protective roof is fixedly connected to the top end of the refuge chamber, and the outer walls of the plurality of refuge chambers are fixedly connected to the hexagonal outer wall of the rescue chamber.

[0010] Preferably, one of the swing doors is connected to the outer walls of the refuge chamber and the rescue chamber through a hinge.

[0011] Preferably, the outer wall of the rescue cabin is slidably connected to the inner walls of the lifting channel and the rescue chamber, and the outer walls of the lifting channel, the rescue cabin and the rescue chamber are provided with and penetrated with an access groove.

[0012] Preferably, the pawl is slidably connected and clamped to the outer wall of the ratchet wheel.

[0013] The utility model has the following beneficial effects:

[0014] 1、in the utility model, the refuge chamber placed around the hexagonal shape enhances the overall structural stability, the hand wheel drives the rocker to rotate, the meshing of the gear ratio and the worm gear amplifies and transmits the power, realizes the opening and closing of the lifting door in the vertical direction, realizes the stable use of the escape device in the case of no electricity and narrow space.

[0015] 2、in the utility model, the motor drives the rotating rod and the winch to rotate, drives the pull rope and then drives the rescue cabin to ascend, the sliding and clamping of the ratchet wheel and the pawl realize the self-locking protection in the ascending process of the rescue cabin, realize the rapid escape and rescue of the refuge personnel, and guarantee safety. ACCURACY OF DRAWINGS

[0016] Figure 1 A front view of a coal mine safety escape device is provided for the utility model;

[0017] Figure 2 A refuge assembly sectional view of a coal mine safety escape device is provided for the utility model;

[0018] Figure 3 A sectional view of the overhead door structure of the coal mine safety escape device is provided for the utility model;

[0019] Figure 4 An enlarged view of A of the coal mine safety escape device is provided for the utility model;

[0020] Figure 5 A schematic view of the rescue assembly structure of the coal mine safety escape device is provided for the utility model;

[0021] Figure 6 An enlarged view of B of the coal mine safety escape device is provided for the utility model.

[0022] Legend:

[0023] 1, refuge chamber; 2, protective roof; 3, lifting channel; 4, power room; 5, rescue cabin; 6, hand wheel; 7, rocker; 8, large gear; 9, worm; 10, small gear; 11, rotating rod; 12, worm gear; 13, lead screw; 14, belt pulley; 15, limiting rod; 16, overhead door; 17, overhead door; 18, motor; 19, rotating rod; 20, winch; 21, pull rope; 22, ratchet; 23, pawl; 24, rescue room. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the specification of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Reference Figures 2-4The utility model provides an embodiment: a coal mine safety escape device, including a plurality of refuge chamber 1 and protection top 2, the outer wall fixed connection of a plurality of refuge chamber 1 has rescue room 24, the top fixed connection of rescue room 24 has lift channel 3, the top fixed connection of lift channel 3 has electric power room 4, the inner wall rotation connection of refuge chamber 1 and is penetrated and has rocker 7, the outer wall symmetrical fixed connection of rocker 7 has two hand cranks 6, the outer wall fixed connection of rocker 7 has big gear 8, the inner wall rotation connection of refuge chamber 1 has worm 9, rotary rod 11 and lead screw 13, the outer wall fixed connection of worm 9 has pinion 10, the outer wall fixed connection of rotary rod 11 has worm wheel 12, the outer wall of rotary rod 11 and lead screw 13 all fixed connection has belt pulley 14, the inner wall fixed connection of refuge chamber 1 has limit rod 15, the outer wall screw thread connection of lead screw 13 has lift door 16, the outer wall of refuge chamber 1 is connected with two vertical hinged doors 17 through hinge, the inside of electric power room 4 is provided with rescue assembly, big gear 8 and pinion 10 meshing connection, worm 9 and worm wheel 12 meshing connection, the outer wall of two belt pulleys 14 is equipped with the belt, and one of vertical hinged doors 17 is connected through hinge in the outer wall of refuge chamber 1 and rescue room 24.

[0026] Specifically, the overall structure is composed of six refuge chambers 1 and protection tops 2, a rescue room 24, a lift channel 3 and an electric power room 4, when an accident occurs in an underground coal mine, the power system on the ground is not affected, so the door of the refuge chamber 1 is opened mechanically, and the rescue assembly is driven by the motor 18 on the ground. The hand crank 6 is manually rotated to drive the rocker 7 to rotate, the big gear 8 fixed on the rocker 7 is driven to rotate, the pinion 10 is driven to rotate through meshing, and the power is amplified through the gear ratio of the big gear 8 and the pinion 10, when the pinion 10 rotates, the worm 9 fixed in the inner wall of the pinion 10 rotates, the rotary rod 11 is driven to rotate through meshing again, so that the movement direction of the power is changed, the power of the rotary rod 11 is transmitted to the lead screw 13 through the belt pulley 14 again, and then the lift door 16 is driven to lift through screw thread connection, the lift door 16 is manually opened and closed through the mechanical structure, and there is a vertical hinged door 17 before entering the refuge chamber 1, the two doors are arranged to prevent the damage of falling stones to the traditional single door, and the external lift door 16 can be used as the first barrier to falling stones after the refuge personnel enter the refuge chamber 1, so that the safety performance is improved, the external lift door 16 is closed through the symmetrically arranged hand cranks 6 in the refuge chamber 1, and then the other vertical hinged door 17 is used to enter the rescue room 24 to wait for rescue.

[0027] Reference Figure 5 And Figure 6The rescue assembly comprises a motor 18 fixedly connected to the outer wall of the power chamber 4, an output end of the motor 18 is fixedly connected with a rotating rod 19, the outer wall of the rotating rod 19 is fixedly connected with a winch 20 and a ratchet wheel 22, the outer wall of the winch 20 is provided with a pull rope 21, one end of the pull rope 21 is fixedly connected with the rescue cabin 5, and the outer wall of the power chamber 4 is rotatably connected with a pawl 23.

[0028] Specifically, the motor 18 installed on the ground drives the rotating rod 19 to rotate, the winch 20 drives the pull rope 21 to be wound or unwound through the rotating rod 19, the lifting of the rescue cabin 5 connected to the other end of the pull rope 21 is controlled, and the refuge personnel in the rescue cabin 5 are driven to rise, and the rescue personnel can also enter the refuge chamber 1 below through the rescue cabin 5 to implement rescue.

[0029] Referring to Figure 2 and Figure 3 , the inner walls of the refuge chamber 1 and the protective top 2 are provided with sliding grooves, the lifting door 16 is slidably connected in the sliding grooves, and the left inner wall of the lifting door 16 is slidably connected to the outer wall of the limiting rod 15.

[0030] Specifically, the sliding grooves limit the lifting of the lifting door 16 to prevent tilting, and when the right end of the lifting door 16 is raised along the screw rod 13 through threaded connection, the left end thereof slides along the limiting rod 15 for re-limiting to ensure stability.

[0031] Referring to Figure 2 , the top end of the refuge chamber 1 is fixedly connected with a plurality of protective beams, the protective top 2 is fixedly connected to the top end of the refuge chamber 1, and the outer walls of the plurality of refuge chambers 1 are fixedly connected to the hexagonal outer wall of the rescue chamber 24.

[0032] Specifically, the protective top and the plurality of protective beams ensure that the top falling rocks do not affect the inside, and safety is ensured. The hexagonal design of the plurality of refuge chambers 1 around the rescue chamber 24 ensures the stability of the rescue passage located in the middle, and the design of the plurality of refuge chambers 1 allows the refuge personnel in multiple directions to enter the refuge chamber 1 simultaneously, and when the door of one side of the refuge chamber 1 cannot be opened, the refuge personnel can also enter from the remaining refuge chambers 1, thereby increasing the reliability of the escape device.

[0033] Referring to Figure 5 , the outer wall of the rescue cabin 5 is slidably connected to the inner walls of the lifting channel 3 and the rescue chamber 24, and the outer walls of the lifting channel 3, the rescue cabin 5 and the rescue chamber 24 are provided with and penetrated by entry and exit grooves.

[0034] Specifically, the rescue cabin 5 is located inside the rescue room 24 in the default state, and when the rescue condition is confirmed, the refuge personnel can enter the rescue cabin 5 from the access slot, and is lifted along the lifting channel 3 under the drive of the ground motor 18, and then escapes from the access slot after reaching the ground, and the lifting channel 3 will limit and protect the lifting process of the rescue cabin 5.

[0035] With reference to Figure 6 The pawl 23 is slidingly connected and engaged with the outer wall of the ratchet wheel 22.

[0036] Specifically, when the rotating rod 19 rotates to drive the winch 20 to retract the pull rope 21 and drive the lower rescue cabin 5 to rise, the pawl 23 and the ratchet wheel 22 are slidingly connected and are not affected, and when an accident occurs to cause the rescue cabin 5 to have a downward trend, the pawl 23 will be engaged with the ratchet wheel 22, preventing the rotating rod 19 from being reversed, thereby preventing the rescue cabin 5 from descending, forming a protection measure.

[0037] Working principle: when the coal mine safety escape device is used, the peripheral rotary hand wheel 6 is directly rotated to drive the swing rod 7 to rotate, the gear ratio of the large gear 8 and the small gear 10 is set to amplify the power to drive the worm 9 to rotate, the worm 9 drives the worm wheel 12 through meshing, and then drives the rotating rod 11 to rotate, the power is transmitted through the belt pulley 14 set on the rotating rod 11 and the lead screw 13, and the lead screw 13 is rotated, when the lead screw 13 rotates, it will drive the lifting door 16 to vertically lift along the lead screw 13 through the threaded connection, achieving the opening and closing effect, then the overhead door 17 is pushed open to enter the refuge chamber 1, and the rotary hand wheel 6 is rotated again from the inside to close the lifting door 16, achieving the effect of refuge.

[0038] When the conditions for escaping from the coal mine are met after contacting the ground, the rescue cabin 5 placed in the rescue room 24 is entered from the refuge chamber 1, the motor 18 is started from the ground, the rotating rod 19 and the winch 20 are rotated, the pull rope 21 is gradually wound onto the winch 20, as the length of the rope outside decreases, the rescue cabin 5 will be lifted along the lifting channel 3, the sliding and engagement of the ratchet wheel 22 and the pawl 23 will prevent the reverse movement of the rescue cabin 5, prevent accidental falling, achieve the protection and locking effect, and the lifting of the rescue cabin 5 is not affected, when the rescue cabin 5 reaches the top of the lifting channel 3, the personnel can escape smoothly.

[0039] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A coal mine safety escape device comprising a plurality of refuge chambers (1) and a protective roof (2), characterized in that: A plurality of said refuge chamber (1) outer wall fixedly connected with rescue room (24), the top of said rescue room (24) fixedly connected with lift channel (3), the top of said lift channel (3) fixedly connected with power room (4), the inner wall of said refuge chamber (1) rotatably connected and through the rocker (7), the outer wall of said rocker (7) fixedly connected with two hand wheels (6) symmetrically, the outer wall of said rocker (7) fixedly connected with large gear (8), the inner wall of said refuge chamber (1) rotatably connected with worm (9), rotary rod (11) and lead screw (13), the outer wall of said worm (9) fixedly connected with pinion (10), the outer wall of said rotary rod (11) fixedly connected with worm gear (12), the outer wall of said rotary rod (11) and lead screw (13) are all fixedly connected with belt pulley (14), the inner wall of said refuge chamber (1) fixedly connected with limit rod (15), the outer wall of said lead screw (13) is threadedly connected with lift door (16), the outer wall of said refuge chamber (1) is connected with two vertical hinged doors (17) through the hinge, the inside of said power room (4) is provided with a rescue assembly.

2. A coal mine safety escape device according to claim 1, characterized in that: Said rescue assembly includes motor (18), the output end of said motor (18) is fixedly connected with rotating rod (19), the outer wall of said rotating rod (19) is fixedly connected with winch (20) and ratchet wheel (22), the outer wall of said winch (20) is provided with a pull rope (21), one end of said pull rope (21) is fixedly connected with rescue cabin (5), the outer wall of said power room (4) is rotatably connected with pawl (23).

3. The coal mine safety escape device according to claim 1, characterized in that: Said large gear (8) and pinion (10) are engagedly connected, said worm (9) and worm gear (12) are engagedly connected, the outer wall of two said belt pulleys (14) is sleeved with a belt.

4. The coal mine safety escape device according to claim 1, characterized in that: The inner wall of said refuge chamber (1) and protective roof (2) is provided with a sliding groove, said lift door (16) is slidably connected in the sliding groove, the left inner wall of said lift door (16) is slidably connected to the outer wall of said limit rod (15).

5. The coal mine safety escape device according to claim 1, characterized in that: The top of said refuge chamber (1) is fixedly connected with a plurality of protective beams, said protective roof (2) is fixedly connected to the top of said refuge chamber (1), the outer wall of a plurality of said refuge chamber (1) is fixedly connected to the hexagonal outer wall of said rescue room (24).

6. The coal mine safety escape device according to claim 1, characterized in that: One of said vertical hinged doors (17) is connected to the outer wall of said refuge chamber (1) and rescue room (24) through the hinge.

7. A coal mine safety escape device according to claim 2, characterised in that: The outer wall of said rescue cabin (5) is slidably connected to the inner wall of said lift channel (3) and rescue room (24), the outer wall of said lift channel (3), rescue cabin (5) and rescue room (24) is provided with an access slot.

8. A coal mine safety escape device according to claim 2, characterized in that: The pawl (23) is slidably connected and engaged with the outer wall of said ratchet wheel (22).

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