Power driving device of automatic one-way explosive-proof device in underground coal mine

Abstract

The utility model discloses a power driving device of an automatic one-way explosive-proof device in an underground coal mine, which comprises a dry powder sleeve, a thin film is arranged at the left end of the dry powder sleeve, a connecting frame is fixedly connected to the outer surface of the dry powder sleeve, and a fixing bolt is in threaded connection with the lower surface of the connecting frame. The right surface of the dry powder sleeve is fixedly connected with an air compression cylinder, and the inner surface of the dry powder sleeve is slidably connected with a large piston block. Triple power sources are provided for the explosion-proof device through an air compression cylinder, a sliding rod, a small piston block, a spring, a through hole, a conical cylinder, a first connecting rope and a second connecting rope, the spraying distance of dry powder in a dry powder sleeve is increased, therefore, the dry powder is completely sprayed out, and the explosion-proof effect is improved; and meanwhile, stretching adjustment of a first connecting rope and a second connecting rope is achieved through a lower connecting bolt, an upper connecting bolt and a fixing base, the situation that a spring is too loose is avoided, and therefore the compression degree of air in the air compression cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof devices, in particular to a power driving device for an automatic one-way explosion-proof device in an underground coal mine. Background Art

[0002] The automatic explosion-proof device in underground coal mines is an important safety device in coal mine production, which is used to prevent gas or other flammable gases from triggering fire or explosion during underground mining.

[0003] However, the power drive device of the traditional automatic one-way explosion-proof device in underground coal mines still has some defects in the spraying of dry powder, such as: poor fire extinguishing effect, failure to completely spray dry powder may lead to poor fire extinguishing effect and failure to quickly and effectively extinguish the fire. Secondly, there are safety risks, and failure to completely spray dry powder may cause the fire to reignite, increasing the safety risks of miners and equipment. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a power drive device for an automatic one-way explosion-proof device in an underground coal mine, which provides a triple power source for the explosion-proof device through an air compression cylinder, a slide rod, a small piston block, a spring, a through hole, a conical cylinder, a first connecting rope, and a second connecting rope, thereby increasing the spray distance of the dry powder inside the dry powder sleeve, thereby completely spraying the dry powder and improving the explosion-proof effect. At the same time, the tension adjustment of the first connecting rope and the second connecting rope is achieved through the lower connecting bolt, the upper connecting bolt, and the fixing seat to avoid the spring from being too loose, thereby increasing the degree of compression of the air inside the air compression cylinder.

[0005] The utility model also provides a power drive device having the above-mentioned automatic one-way explosion-proof device for underground coal mines, comprising:

[0006] A dry powder sleeve, wherein a film is arranged on the left end of the dry powder sleeve, a connecting frame is fixedly connected to the outer surface of the dry powder sleeve, a fixing bolt is threadedly connected to the lower surface of the connecting frame, an air compression cylinder is fixedly connected to the right surface of the dry powder sleeve, a large piston block is slidably connected to the inner surface of the dry powder sleeve, a sliding rod is fixedly connected to the right surface of the large piston block, and a conical cylinder is fixedly connected to the right end of the sliding rod.

[0007] The inner surface of the air compression cylinder is slidably connected with a small piston block, the right surface of the small piston block is fixedly connected with a spring, the right surface of the dry powder sleeve is provided with a through hole, the right surface of the small piston block is fixedly connected with a first connecting rope, the right surface of the small piston block is fixedly connected with a second connecting rope, the end of the second connecting rope away from the small piston block is fixedly connected with a lower connecting bolt, the end of the first connecting rope away from the small piston block is fixedly connected with an upper connecting bolt, and the outer surface of the sliding rod is fixedly connected with a fixing seat.

[0008] According to the power drive device of the automatic one-way explosion-proof device in underground coal mines, the outer surface of the slide rod is slidably connected to the dry powder sleeve, and the outer surface of the slide rod is slidably connected to the air compression cylinder.

[0009] According to the power drive device of the automatic one-way explosion-proof device in underground coal mines, the outer surface of the slide rod is slidably connected to the spring, and the right end of the spring is fixedly connected to the air compression cylinder.

[0010] According to the power drive device of the automatic one-way explosion-proof device in a coal mine, the through hole corresponds to the left end of the air compressor cylinder, which is convenient for passing the compressed ventilation into the interior of the dry powder sleeve. The interior of the dry powder sleeve is filled with dry powder for blocking the explosion shock wave.

[0011] According to the power drive device of the automatic one-way explosion-proof device in a coal mine, the interior of the conical cylinder is a conical surface, which increases the force-bearing area of ​​the shock wave. The number of the fixing bolts is two and they are distributed on the left and right, which makes it easy to install the device in the tunnel.

[0012] According to the power drive device of the automatic one-way explosion-proof device in an underground coal mine, the outer surface of the first connecting rope is slidably connected to the air compression cylinder, and the outer surface of the second connecting rope is slidably connected to the air compression cylinder.

[0013] According to the power drive device of the automatic one-way explosion-proof device in a coal mine, the outer surface of the lower connecting bolt is threadedly connected to the fixing seat, and the outer surface of the upper connecting bolt is threadedly connected to the fixing seat, which is convenient for adjusting the tensile strength of the connecting rope.

[0014] According to the power drive device of the automatic one-way explosion-proof device in an underground coal mine, the through hole corresponds to the right surface of the large piston block, and there are multiple through holes, which facilitates the passage of air into the interior of the dry powder sleeve.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of a power drive device of an automatic one-way explosion-proof device for underground coal mines according to the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 3 This is a partial structural cross-sectional view of a power drive device of an automatic one-way explosion-proof device for underground coal mines according to the utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0021] Legend:

[0022] 1. Dry powder sleeve; 2. Film; 3. Connecting frame; 4. Fixing bolt; 5. Air compressor cylinder; 6. Large piston block; 7. Sliding rod; 8. Small piston block; 9. Spring; 10. Through hole; 11. Conical cylinder; 12. First connecting rope; 13. Second connecting rope; 14. Lower connecting bolt; 15. Upper connecting bolt; 16. Fixing seat. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 The utility model embodiment is a power drive device for an automatic one-way explosion-proof device in an underground coal mine, which includes: a dry powder sleeve 1, a film 2 is arranged on the left end of the dry powder sleeve 1, a connecting frame 3 is fixedly connected to the outer surface of the dry powder sleeve 1, a fixing bolt 4 is threadedly connected to the lower surface of the connecting frame 3, an air compression cylinder 5 is fixedly connected to the right surface of the dry powder sleeve 1, a large piston block 6 is slidably connected to the inner surface of the dry powder sleeve 1, a sliding rod 7 is fixedly connected to the right surface of the large piston block 6, a conical cylinder 11 is fixedly connected to the right end of the sliding rod 7, the outer surface of the sliding rod 7 is slidably connected to the dry powder sleeve 1, the outer surface of the sliding rod 7 is slidably connected to the air compression cylinder 5, the interior of the dry powder sleeve 1 is filled with dry powder, the interior of the conical cylinder 11 is a conical surface, and the number of fixing bolts 4 is two and they are distributed on the left and right.

[0025] The inner surface of the air compression cylinder 5 is slidably connected with a small piston block 8, the right surface of the small piston block 8 is fixedly connected with a spring 9, the right surface of the dry powder sleeve 1 is provided with a through hole 10, the right surface of the small piston block 8 is fixedly connected with a first connecting rope 12, the right surface of the small piston block 8 is fixedly connected with a second connecting rope 13, the end of the second connecting rope 13 away from the small piston block 8 is fixedly connected with a lower connecting bolt 14, the end of the first connecting rope 12 away from the small piston block 8 is fixedly connected with an upper connecting bolt 15, and the outer surface of the slide rod 7 is fixedly connected with a fixed Seat 16, the outer surface of the slide rod 7 is slidably connected to the spring 9, the right end of the spring 9 is fixedly connected to the air compression cylinder 5, the through hole 10 corresponds to the left end of the air compression cylinder 5, the outer surface of the first connecting rope 12 is slidably connected to the air compression cylinder 5, the outer surface of the second connecting rope 13 is slidably connected to the air compression cylinder 5, the outer surface of the lower connecting bolt 14 is threadedly connected to the fixed seat 16, the outer surface of the upper connecting bolt 15 is threadedly connected to the fixed seat 16, the through hole 10 corresponds to the right surface of the large piston block 6, and the number of through holes 10 is multiple.

[0026] Working principle: When a gas explosion occurs in a coal mine, a huge shock wave will hit the conical cylinder 11. The conical surface inside the conical cylinder 11 can increase the force area of ​​the shock wave, providing the first power source for the entire device, so that the slide bar 7 and the large piston block 6 can be quickly pushed to the left, providing the second power source for the device. Under the action of high temperature, the first connecting rope 12 and the second connecting rope 13 are melted, and under the action of the restoring force of the spring 9 during compression, the small piston block 8 will be pushed to slide inside the air compression cylinder 5, compressing the air. The air inside the cylinder 5 is compressed, and the compressed air enters the dry powder sleeve 1 through the through hole 10, providing a third power source for the device. Under the action of the triple power source, the dry powder inside the dry powder sleeve 1 will be quickly pushed out, breaking the film 2, so that the dry powder fills the entire tunnel and prevents the extension of the explosion shock wave. At the same time, the tensile strength of the first connecting rope 12 and the second connecting rope 13 can be adjusted by the lower connecting bolt 14 and the upper connecting bolt 15, thereby increasing the compression degree of the spring 9, and then the strength of the double power source can be controlled.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A power drive device for an automatic one-way explosion-proof device in a coal mine, characterized in that: include: A dry powder sleeve (1), wherein a film (2) is provided at the left end of the dry powder sleeve (1), a connecting frame (3) is fixedly connected to the outer surface of the dry powder sleeve (1), a fixing bolt (4) is threadedly connected to the lower surface of the connecting frame (3), an air compression cylinder (5) is fixedly connected to the right surface of the dry powder sleeve (1), a large piston block (6) is slidably connected to the inner surface of the dry powder sleeve (1), a sliding rod (7) is fixedly connected to the right surface of the large piston block (6), and a conical cylinder (11) is fixedly connected to the right end of the sliding rod (7); The inner surface of the air compression cylinder (5) is slidably connected to a small piston block (8), the right surface of the small piston block (8) is fixedly connected to a spring (9), the right surface of the dry powder sleeve (1) is provided with a through hole (10), the right surface of the small piston block (8) is fixedly connected to a first connecting rope (12), the right surface of the small piston block (8) is fixedly connected to a second connecting rope (13), the end of the second connecting rope (13) away from the small piston block (8) is fixedly connected to a lower connecting bolt (14), the end of the first connecting rope (12) away from the small piston block (8) is fixedly connected to an upper connecting bolt (15), and the outer surface of the sliding rod (7) is fixedly connected to a fixing seat (16).

2. The power drive device of the automatic one-way explosion-proof device in underground coal mines according to claim 1, characterized in that: The outer surface of the slide rod (7) is slidably connected to the dry powder sleeve (1), and the outer surface of the slide rod (7) is slidably connected to the air compression cylinder (5).

3. The power drive device of the automatic one-way explosion-proof device in underground coal mine according to claim 1, characterized in that: The outer surface of the slide rod (7) is slidably connected to the spring (9), and the right end of the spring (9) is fixedly connected to the air compression cylinder (5).

4. The power drive device of the automatic one-way explosion-proof device in underground coal mine according to claim 1, characterized in that: The through hole (10) corresponds to the left end of the air compression cylinder (5), and the interior of the dry powder sleeve (1) is filled with dry powder.

5. The power drive device of the automatic one-way explosion-proof device in underground coal mine according to claim 1, characterized in that: The interior of the conical cylinder (11) is a conical surface, and the number of the fixing bolts (4) is two and they are distributed on the left and right.

6. The power drive device for the automatic one-way explosion-proof device in underground coal mines according to claim 1, characterized in that: The outer surface of the first connecting rope (12) is slidably connected to the air compression cylinder (5), and the outer surface of the second connecting rope (13) is slidably connected to the air compression cylinder (5).

7. The power drive device for the automatic one-way explosion-proof device in underground coal mines according to claim 1, characterized in that: The outer surface of the lower connecting bolt (14) is threadedly connected to the fixing seat (16), and the outer surface of the upper connecting bolt (15) is threadedly connected to the fixing seat (16).

8. The power drive device for the automatic one-way explosion-proof device in underground coal mines according to claim 1, characterized in that: The through hole (10) corresponds to the right surface of the large piston block (6), and there are multiple through holes (10).

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