Intelligent air leakage prevention device for coal mine ventilation and prevention

Abstract

The intelligent air leakage prevention device comprises a door frame, a first air door and a second air door are movably connected to the interior of the door frame, a first groove is formed in one side of the first air door, a first boss is arranged on one side of the second air door, and electric telescopic rods are movably connected to the two sides of the door frame. The power output ends of the multiple electric telescopic rods are movably connected with one side of the first air door and one side of the second air door correspondingly, a baffle is movably connected to one side of the bottom of the door frame, and the first air door and the second air door are controlled by the electric telescopic rods to rotate around the first rotating shaft to be closed. The gap between the first air door and the second air door is shielded under the cooperation of the first groove and the first boss, and the gaps between the first air door and the external ground and between the second air door and the external ground are shielded under the action of the baffle, so that the problems that a small amount of air leakage is caused due to the fact that existing coal mine ventilation and prevention intelligent air leakage prevention devices are mostly double air doors and gaps exist among a plurality of air doors are solved. And the air leakage prevention effect is influenced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to an intelligent air leakage prevention device for coal mine ventilation. Background Art

[0002] In the mining industry, especially in the coal mining industry, after the coal mining is completed, a goaf will be formed. On the one hand, the rock layer above the coal seam falls off or cracks are generated, and surface subsidence occurs; on the other hand, the coal mining face continues to advance due to coal mining, and the goaf formed behind the coal mining face cannot be dense due to the falling of the roof, forming an air leakage channel; and after the coal mining face is completely completed and the goaf of the coal mining face is completely closed, due to the lax closure and the existence of loose surrounding rock circles, air leakage channels are formed; while the mine ventilator ventilates the entire mine and the natural wind pressure, a wind pressure difference is generated at both ends of these leakage channels, causing a small amount of wind flow to flow through the goaf, which is the so-called air leakage.

[0003] Most of the existing intelligent air leakage prevention devices for coal mines are double air doors. There are gaps between multiple air doors, which will cause a small amount of air leakage and affect the air leakage prevention effect to a certain extent. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above-mentioned and / or existing problems in the existing intelligent air leakage prevention devices for coal mines, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an intelligent anti-air leakage device for coal mine ventilation. During use, the first air door and the second air door are controlled by an electric telescopic rod to rotate along the first rotation axis to close. The gap between the first air door and the second air door is blocked with the cooperation of the first groove and the first boss. The gap between the first air door and the second air door and the external ground is blocked under the action of the baffle. This solves the problem that most of the existing intelligent anti-air leakage devices for coal mine ventilation are double air doors, and there are gaps between multiple air doors, which will cause a small amount of air leakage and affect the anti-air leakage effect to a certain extent.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] An intelligent air leakage prevention device for coal mine ventilation, comprising:

[0009] A door frame, wherein a first damper and a second damper are movably connected inside the door frame, a first groove is provided on one side of the first damper, a first boss is provided on one side of the second damper, electric telescopic rods are movably connected on both sides of the door frame, power output ends of the multiple electric telescopic rods are movably connected to one side of the first damper and the second damper, respectively, and a baffle is movably connected to one side of the bottom of the door frame.

[0010] As a preferred solution of the intelligent air leakage prevention device for coal mine ventilation described in the utility model, second grooves are provided at both ends of one side of the door frame, a first rotating shaft is longitudinally fixedly connected inside the second groove, a first through hole is provided on one side of the first air gate, a second through hole is provided on one side of the second air gate, and multiple first rotating shafts are respectively located inside the first through hole and the second through hole.

[0011] As a preferred solution of the intelligent air leakage prevention device for coal mine ventilation described in the utility model, multiple second bosses and multiple third bosses are respectively arranged at both ends of one side of the door frame, a second rotating shaft is fixedly connected between the second boss and the third boss, a third through hole is arranged at one end of the electric telescopic rod, and the second rotating shaft is located inside the third through hole.

[0012] As an optimal solution of the intelligent air leakage prevention device for coal mines described in the utility model, a plurality of fourth bosses are arranged on one side of the first air gate, and a third rotating shaft is longitudinally fixedly connected between the plurality of fourth bosses, a plurality of fifth bosses are arranged on one side of the second air gate, and a fourth rotating shaft is longitudinally fixedly connected between the plurality of fifth bosses, a protrusion is arranged at the power output end of the electric telescopic rod, a fourth through hole is arranged in the middle of the protrusion, and the third rotating shaft and the fourth rotating shaft are respectively located in the plurality of fourth through holes.

[0013] As an optimal solution of the intelligent air leakage prevention device for coal mine ventilation described in the utility model, a sixth boss and a seventh boss are respectively provided at both ends of one side of the door frame, the top of the sixth boss is movably connected with a driving pulley, the top of the seventh boss is movably connected with a driven pulley, the bottoms of the driving pulley and the driven pulley respectively pass through the sixth boss and the seventh boss and are fixedly connected with a lead screw, both ends of one side of the door frame are provided with an eighth boss, and one end of the lead screw is movably connected to the top of the eighth boss.

[0014] As an optimal solution of the intelligent anti-air leakage device for coal mine ventilation described in the utility model, a ninth boss is arranged on one side of the door frame, a driving motor is fixedly connected to the top of the ninth boss, a power output end of the driving motor passes through the ninth boss and is fixedly connected to the top of the driving pulley, a belt is movably connected between the driving pulley and the driven pulley, internal threaded through holes are arranged at both ends of the baffle, and the external thread of the lead screw is meshed with the internal thread of the baffle.

[0015] As a preferred solution of the intelligent air leakage prevention device for coal mine ventilation described in the utility model, a tenth boss is provided on both sides of the top of the door frame, and a plurality of fixing pins are movably connected inside the tenth boss, and the fixing pins are fixedly connected to the external ground.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the first damper and the second damper are controlled by the electric telescopic rod to rotate and close along the first rotating axis, the gap between the first damper and the second damper is blocked with the cooperation of the first groove and the first boss, and the gap between the first damper and the second damper and the external ground is blocked with the action of the baffle, which solves the problem that most of the existing coal mine ventilation and air leakage prevention devices are double dampers, and there are gaps between multiple dampers, which will cause a small amount of air leakage and affect the air leakage prevention effect to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an intelligent anti-air leakage device for coal mine ventilation.

[0019] Figure 2 The utility model is a schematic diagram of the door frame structure of an intelligent anti-air leakage device for coal mine ventilation.

[0020] Figure 3 The utility model is a schematic diagram of the active pulley structure of an intelligent anti-air leakage device for coal mine ventilation.

[0021] Figure 4 The utility model is a schematic diagram of the first air door structure of an intelligent anti-air leakage device for coal mine ventilation.

[0022] Figure 5 The utility model is a schematic diagram of the second air door structure of an intelligent anti-air leakage device for coal mine ventilation.

[0023] Figure 6 The utility model is a schematic diagram of the structure of an electric telescopic rod of an intelligent anti-air leakage device for coal mine ventilation. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] See also Figure 1-2 and Figure 4-6 The utility model provides an intelligent air leakage prevention device for coal mine ventilation, including a door frame 1, wherein a first air door 2 and a second air door 3 are movably connected inside the door frame 1, a first groove 25 is provided on one side of the first air door 2, and a first boss 29 is provided on one side of the second air door 3, electric telescopic rods 4 are movably connected on both sides of the door frame 1, and power output ends of multiple electric telescopic rods 4 are movably connected to one side of the first air door 2 and the second air door 3, respectively, and a baffle 12 is movably connected to one side of the bottom of the door frame 1.

[0026] A second groove 7 is provided at both ends of one side of the door frame 1, and a first rotating shaft 8 is longitudinally fixedly connected inside the second groove 7. A first through hole 22 is provided on one side of the first damper 2, and a second through hole 26 is provided on one side of the second damper 3. Multiple first rotating shafts 8 are respectively located inside the first through hole 22 and the second through hole 26.

[0027] A plurality of second bosses 9 and a plurality of third bosses 10 are respectively provided at both ends of one side of the door frame 1, a second rotating shaft 11 is fixedly connected between the second boss 9 and the third boss 10, a third through hole is provided at one end of the electric telescopic rod 4, and the second rotating shaft 11 is located inside the third through hole.

[0028] A plurality of fourth bosses 23 are provided on one side of the first damper 2, and a third rotating shaft 24 is longitudinally fixedly connected between the plurality of fourth bosses 23; a plurality of fifth bosses 27 are provided on one side of the second damper 3, and a fourth rotating shaft 28 is longitudinally fixedly connected between the plurality of fifth bosses 27; a protrusion 30 is provided at the power output end of the electric telescopic rod 4, a fourth through hole 31 is provided in the middle of the protrusion 30, and the third rotating shaft 24 and the fourth rotating shaft 28 are respectively located in the plurality of fourth through holes 31.

[0029] A tenth boss 5 is provided on both sides of the top of the door frame 1. A plurality of fixing pins 6 are movably connected inside the tenth boss 5. The fixing pins 6 are fixedly connected to the external ground.

[0030] Specifically, the first damper 2 and the second damper 3 are controlled by the electric telescopic rod 4 to rotate and close along the first rotating axis 8, and the gap between the first damper 2 and the second damper 3 is blocked with the cooperation of the first groove 25 and the first boss 29. The gap between the first damper 2 and the second damper 3 and the external ground is blocked under the action of the baffle 12, thereby solving the problem that most of the existing coal mine ventilation intelligent anti-leakage devices are double dampers, and there are gaps between multiple dampers, which will cause a small amount of air leakage and affect the anti-leakage effect to a certain extent.

[0031] See also Figure 3A sixth boss 15 and a seventh boss 16 are respectively provided at both ends of one side of the door frame 1, a driving pulley 17 is movably connected to the top of the sixth boss 15, a driven pulley 18 is movably connected to the top of the seventh boss 16, the bottoms of the driving pulley 17 and the driven pulley 18 respectively penetrate the sixth boss 15 and the seventh boss 16 and are fixedly connected to a lead screw 21, an eighth boss 20 is provided at both ends of one side of the door frame 1, and one end of the lead screw 21 is movably connected to the top of the eighth boss 20.

[0032] A ninth boss 13 is provided on one side of the door frame 1, and a driving motor 14 is fixedly connected to the top of the ninth boss 13. The power output end of the driving motor 14 passes through the ninth boss 13 and is fixedly connected to the top of the driving pulley 17. A belt 19 is movably connected between the driving pulley 17 and the driven pulley 18. Internal threaded through holes are provided at both ends of the baffle 12, and the external thread of the lead screw 21 is engaged with the internal thread of the baffle 12.

[0033] Specifically, when a mine car needs to pass, the drive motor 14 can be started, and under the action of the lead screw 21, the baffle 12 rises to facilitate the passage of the mine car, which is more humane.

[0034] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An intelligent anti-leakage device for coal mines, characterized in that: The invention comprises a door frame (1), wherein a first damper (2) and a second damper (3) are movably connected inside the door frame (1), a first groove (25) is provided on one side of the first damper (2), and a first boss (29) is provided on one side of the second damper (3), both sides of the door frame (1) are movably connected to electric telescopic rods (4), power output ends of a plurality of the electric telescopic rods (4) are movably connected to one side of the first damper (2) and the second damper (3), respectively, and a baffle (12) is movably connected to one side of the bottom of the door frame (1).

2. The intelligent anti-air leakage device for coal mine ventilation according to claim 1 is characterized in that: The door frame (1) is provided with a second groove (7) at both ends of one side, a first rotating shaft (8) is longitudinally fixedly connected inside the second groove (7), a first through hole (22) is provided on one side of the first damper (2), a second through hole (26) is provided on one side of the second damper (3), and a plurality of the first rotating shafts (8) are respectively located inside the first through hole (22) and the second through hole (26).

3. The intelligent anti-air leakage device for coal mine ventilation according to claim 2 is characterized in that: A plurality of second bosses (9) and a plurality of third bosses (10) are respectively arranged at both ends of one side of the door frame (1); a second rotating shaft (11) is fixedly connected between the second boss (9) and the third boss (10); a third through hole is arranged at one end of the electric telescopic rod (4); and the second rotating shaft (11) is located inside the third through hole.

4. The intelligent anti-air leakage device for coal mine ventilation according to claim 3 is characterized in that: A plurality of fourth bosses (23) are provided on one side of the first damper (2), and a third rotating shaft (24) is longitudinally fixedly connected between the plurality of fourth bosses (23); a plurality of fifth bosses (27) are provided on one side of the second damper (3), and a fourth rotating shaft (28) is longitudinally fixedly connected between the plurality of fifth bosses (27); a convex block (30) is provided at the power output end of the electric telescopic rod (4), a fourth through hole (31) is provided in the middle of the convex block (30), and the third rotating shaft (24) and the fourth rotating shaft (28) are respectively located in the plurality of fourth through holes (31).

5. The intelligent anti-air leakage device for coal mine ventilation according to claim 4 is characterized in that: A sixth boss (15) and a seventh boss (16) are respectively provided at both ends of one side of the door frame (1); the top of the sixth boss (15) is movably connected to a driving pulley (17); the top of the seventh boss (16) is movably connected to a driven pulley (18); the bottoms of the driving pulley (17) and the driven pulley (18) respectively penetrate the sixth boss (15) and the seventh boss (16) and are fixedly connected to a lead screw (21); both ends of one side of the door frame (1) are provided with an eighth boss (20); one end of the lead screw (21) is movably connected to the top of the eighth boss (20).

6. The intelligent anti-air leakage device for coal mine ventilation according to claim 5, characterized in that: A ninth boss (13) is provided on one side of the door frame (1), a driving motor (14) is fixedly connected to the top of the ninth boss (13), a power output end of the driving motor (14) passes through the ninth boss (13) and is fixedly connected to the top of a driving pulley (17), a belt (19) is movably connected between the driving pulley (17) and the driven pulley (18), both ends of the baffle (12) are provided with internal threaded through holes, and the external thread of the lead screw (21) is meshed with the internal thread of the baffle (12).

7. The intelligent anti-air leakage device for coal mine ventilation according to claim 6 is characterized in that: A tenth boss (5) is provided on both sides of the top of the door frame (1), and a plurality of fixing pins (6) are movably connected inside the tenth boss (5), and the fixing pins (6) are fixedly connected to the external ground.

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