Mining automatic explosive-proof device and explosive-proof piston thereof

Abstract

The utility model relates to the technical field of mining explosive-proof equipment, in particular to a mining automatic explosive-proof device and an explosive-proof piston thereof. The explosive-proof device comprises a cylinder body, an explosive-proof piston and a detection assembly, and an air hole and a preset hole are formed in the side face of the cylinder body and used for installing a pressure gauge and a sensor to monitor internal pressure changes; the explosion-proof piston is designed in a split mode and is composed of a stress head, a connecting column and a trigger head, high-pressure gas thrust is adjusted through a spring assembly, and the more stable explosion-proof effect is achieved. In addition, the detachable end plate and the trigger rod are arranged at the end of the sliding seat pipe, so that maintenance and replacement are facilitated. The overall structure is compact, the integration degree is high, linkage with other safety systems can be achieved, and the safety management efficiency is improved. The explosion-proof piston adopts a modular detachable design, so that the maintenance cost is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining explosion-proof equipment technical field, concretely relates to a kind of mining automatic explosion-proof device and its explosion-proof piston. BACKGROUND

[0002] The information disclosed in the background of the utility model is only intended to increase the understanding of the overall background of the utility model, and is not necessarily considered to acknowledge or imply in any form that the information constitutes prior art known to those skilled in the art.

[0003] The mining automatic explosion-proof device is a safety device used in flammable and explosive environments such as coal mines, which can quickly act when potential explosion risks are detected to prevent explosions or limit the scope of explosions, thereby protecting the safety of personnel and facilities.

[0004] However, the trigger device of the existing mining automatic explosion-proof device lacks monitoring and adjustment functions, resulting in a lack of data collection and subsequent analysis and adjustment functions. Moreover, the integration is low, and the linkage with other safety systems (such as ventilation control, personnel positioning, etc.) is not tight enough, reducing the overall safety management efficiency.

[0005] In addition, the existing explosion-proof piston of the explosion-proof piston is mostly integrated, with short service life, high maintenance cost, and unable to adjust the high-pressure gas thrust. UTILITY MODEL CONTENT

[0006] To solve the above technical problems, the utility model provides a mining automatic explosion-proof device with strong adaptability, high integration, good adjustment, long service life and low maintenance cost.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A mining automatic explosion-proof device, comprising a cylinder body, the cylinder body is provided with a gas hole on the side, and an explosion-proof piston is installed in the cylinder body; the cylinder body is provided with a connecting flange at one end and a sliding seat pipe at the other end, and a plurality of mounting holes are formed on the side of the sliding seat pipe; an isolation plate is arranged in the cylinder body close to the connecting flange side, and the isolation plate is provided with a cylinder sleeve;

[0009] The side of the cylinder body is also provided with a preset hole for detecting pressure;

[0010] The explosion-proof piston comprises a force head, a connecting column and a trigger head arranged in a split manner, the trigger head and the force head are respectively slidingly fitted and installed in the cylinder sleeve and the sliding seat pipe, and the connecting column is used to detachably connect the trigger head and the force head;

[0011] The force receiving head end is provided with a first force receiving part, which is in contact with a plurality of steel columns installed in the mounting hole, so as to limit the axial movement of the explosion-proof piston;

[0012] The trigger sleeve is slidably installed outside the sliding seat pipe, and is used to limit the axial movement of the steel column along the mounting hole.

[0013] Preferably, the preset hole includes a preset hole for installing a pressure gauge and a pressure sensor.

[0014] Preferably, the first force receiving part end is provided with a first threaded hole for installing a spring assembly, which is used to adjust the thrust of the high-pressure gas on the explosion-proof piston as a whole.

[0015] The sliding seat pipe is further provided with a mounting seat for installing the spring assembly.

[0016] Preferably, the end plate is threadedly installed at the end of the sliding seat pipe, and the end plate is provided with a first threaded hole for connecting a trigger rod.

[0017] Preferably, the trigger sleeve is further provided with a limiting screw for limiting the relative sliding between the trigger sleeve and the sliding seat pipe.

[0018] The mine automatic explosion-proof device has the following beneficial effects:

[0019] The mine automatic explosion-proof device can monitor the pressure change in the cylinder body in real time through the detection assembly (such as a pressure gauge and a pressure sensor), so as to monitor the working state thereof.

[0020] The mine automatic explosion-proof device can introduce adjustable components such as a spring assembly, so as to allow the force of the high-pressure gas on the explosion-proof piston to be adjusted according to actual needs, so as to achieve the best working effect.

[0021] In order to better realize the above scheme, the mine automatic explosion-proof device further provides an explosion-proof piston, and the specific technical scheme of the explosion-proof piston is as follows:

[0022] The explosion-proof piston comprises a force receiving head, a connecting column and a trigger head which are arranged in a split mode.

[0023] The force receiving head end is provided with a first force receiving part, and a second threaded hole is formed in the end of the first force receiving part, the first threaded hole is used for installing a spring assembly, and the spring assembly is used for adjusting the thrust of high-pressure gas on the whole explosion-proof piston.

[0024] As preferred, the trigger head end is provided with a second force receiving part.

[0025] As preferred, the trigger head side and the force receiving head side are respectively provided with two or more first sealing grooves and second sealing grooves for installing corresponding rubber sealing rings.

[0026] As preferred, the trigger head and the force receiving head are respectively provided with a third threaded hole corresponding to the end of the connecting column, and the connecting column is provided with corresponding threaded connectors at both ends.

[0027] The explosion-proof piston has the following beneficial effects:

[0028] The explosion-proof piston adopts modular design, and is divided into a force receiving head, a connecting column and a trigger head, so that the components can be independently manufactured and replaced, the production cost is reduced, and the maintenance process is simplified.

[0029] The threaded hole for connecting the spring assembly is arranged in the first force receiving part, so that the user can adjust the thrust acting on the piston according to the specific application scene, and the explosion-proof action is ensured to be fast and effective.

[0030] The second force receiving part is arranged to strengthen the structural strength of the trigger head, so that the trigger head can withstand greater impact force without being easily damaged, and the service life of the whole explosion-proof piston is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole external structure schematic view of the utility model;

[0032] Figure 2 It is a left view direction plane schematic view of the utility model whole;

[0033] Figure 3 It is Figure 2 A-A direction section view structure schematic view;

[0034] Figure 4 It is a split structure schematic view of the explosion-proof piston;

[0035] Figure 5 It is an assembly structure schematic view of the explosion-proof piston.

[0036] The reference signs involved in the drawings are as follows:

[0037] 1, cylinder; 11, connecting flange; 12, sliding seat pipe; 13, partition plate; 14, air hole; 15, preset hole; 2, explosion-proof piston; 21, trigger head; 211, first sealing groove; 212, second force receiving part; 22, connecting column; 23, force receiving head; 231, second sealing groove; 232, second threaded hole; 233, first force receiving part; 3, trigger sleeve; 31, reserved groove; 32, limiting screw; 33, first threaded hole; 34, mounting seat; 4, steel column; 100, third threaded hole; 200, threaded connecting head. DETAILED DESCRIPTION

[0038] In order to make the skilled in the art can better understand the utility model, the following will be combined with the drawings and examples to further illustrate the technical scheme of the utility model.

[0039] Example one

[0040] Figures 1 to 5 Show a kind of mining automatic explosion-proof device, including cylinder 1, the air hole 14 is arranged in the side of the cylinder 1, explosion-proof piston 2 is cooperatively installed in the cylinder 1;The cylinder 1 one end is provided with connecting flange 11, the other end is provided with sliding seat pipe 12, the sliding seat pipe 12 side is provided with multiple mounting holes;The cylinder 1 is provided with the partition plate close to connecting flange 11 side, and the partition plate is provided with cylinder sleeve;

[0041] The cylinder 1 side is also provided with preset hole 15 for detecting pressure, by installing corresponding detection components in the preset hole 15, to realize the detection of corresponding monitoring data;The detection component includes pressure gauge and pressure sensor;

[0042] The explosion-proof piston 2 includes force receiving head 23, connecting column 22 and trigger head 21 arranged in parts, the trigger head 21 and force receiving head 23 are respectively slidably fitted and installed in the cylinder sleeve and sliding seat pipe 12, and the connecting column 22 is used to detachably connect the trigger head 21 and force receiving head 23;

[0043] The force receiving head 23 end is provided with first force receiving part 233, the first force receiving part 233 is in contact with multiple steel columns 4 installed in the mounting hole, to limit the axial movement of the explosion-proof piston 2 along it;

[0044] The trigger sleeve 3 is slidably installed outside the sliding seat pipe 12, and the trigger sleeve is used to limit the axial movement of the steel column 4 along the mounting hole;The inside wall of the trigger sleeve 3 is provided with reserved groove 31 for accommodating the steel column 4;The reserved groove 31 is used to release the restriction on the steel column 4 when the trigger sleeve 3 slides along the sliding seat pipe 12.

[0045] Example two

[0046] In the embodiment, the first force receiving part 233 is provided with a first threaded hole 33 at the end, the first threaded hole 33 is used to connect and install a spring assembly, and the spring assembly is used to adjust the thrust of high-pressure gas on the whole explosion-proof piston 2; the sliding seat pipe 12 is further provided with a mounting seat 34 used to cooperate with the spring assembly. The spring assembly provides elastic force to adjust the thrust of high-pressure gas on the whole explosion-proof piston 2, so that the best thrust is adjusted, and more stable explosion-proof is realized.

[0047] Embodiment three

[0048] In the embodiment, the end plate is threadedly installed at the end of the sliding seat pipe 12, and the end plate is provided with a first threaded hole 33 used to connect a trigger rod. The end plate and the trigger rod are threadedly detachably connected, so that installation and replacement and maintenance are facilitated.

[0049] Embodiment four

[0050] In the embodiment, the trigger sleeve 3 is further provided with a limiting screw 32 used to limit the relative sliding between the trigger sleeve 3 and the sliding seat pipe 12. When not in an explosion-proof working environment, the limiting screw 32 can be locked to facilitate the realization of the stable state of the device.

[0051] The working process of the mine automatic explosion-proof device is as follows: the limiting screw 32 is removed and installed at a suitable position; when explosion occurs, the trigger sleeve 3 is triggered and impacted, the trigger sleeve 3 slides, loses the limitation on the steel column 4, the explosion-proof piston 2 starts to slide in the axial direction under the action of high-pressure gas, and at the same time, the steel column 4 is pushed into the reserved groove 31; at this time, the high-pressure gas enters the inner cavity of the cylinder body 1, and is discharged through the gas hole 14, cooperates with the powder spraying device to realize the spraying of fire extinguishing powder, and realizes the explosion-proof function. At the same time, the detection assembly installed in the reserved hole detects the working state of the high-pressure gas in the cylinder body 1.

[0052] Embodiment five

[0053] In order to better realize the above scheme, the utility model also provides a mine automatic explosion-proof device explosion-proof piston 2, in the embodiment, the specific technical scheme of the explosion-proof piston 2 is as follows:

[0054] The explosion-proof piston 2 comprises a force receiving head 23, a connecting column 22 and a trigger head 21 arranged in a split mode, the trigger head 21 and the force receiving head 23 are slidably and cooperatively installed in the cylinder sleeve and the sliding seat pipe 12 respectively, and the connecting column 22 is used to detachably connect the trigger head 21 and the force receiving head 23.

[0055] Specifically, the third threaded hole 100 is arranged at the end of the trigger head 21 and the force receiving head 23 corresponding to the end of the connecting column 22, and the connecting column 22 is provided with a corresponding threaded connector 200 at both ends; of course, the trigger head 21 and the force receiving head 23 can also be connected in a clamping manner, but the threaded detachable connection effect is the best.

[0056] The force receiving head 23 is provided with a first force receiving part 233 at the end, and the second threaded hole 232 is arranged at the end of the first force receiving part 233, and the second threaded hole 232 is used to connect and install a spring assembly for adjusting the overall thrust of the high-pressure gas on the explosion-proof piston 2.

[0057] Embodiment six

[0058] In this embodiment, the trigger head 21 is provided with a second force receiving part 212 at the end, and the second force receiving part 212 is used to enhance the bearing strength of the trigger head 21, thereby prolonging the service life.

[0059] Embodiment seven

[0060] In this embodiment, the side surface of the trigger head 21 and the side surface of the force receiving head 23 are respectively provided with two or more first sealing grooves 211 and second sealing grooves 231, which are used to install corresponding rubber sealing rings. Thus, the air tightness is improved, and the explosion-proof effect is improved.

[0061] In the description of the embodiments, the embodiments are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0062] In the description of the embodiments, the terms "upper", "lower", "outer side" and "inner side" in the description and claims and the above drawings are used to distinguish the relative position, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mine automatic explosion isolation device, comprising a cylinder, the cylinder is provided with a gas hole on the side, an explosion isolation piston is fitted and installed in the cylinder; a connecting flange is arranged at one end of the cylinder, a sliding seat pipe is arranged at the other end of the cylinder, a plurality of mounting holes are formed on the side of the sliding seat pipe; an isolation plate is arranged on the side of the cylinder close to the connecting flange, the isolation plate is provided with a cylinder sleeve; characterized in that: a preset hole for detecting pressure is further arranged on the side of the cylinder; the explosion isolation piston comprises a force receiving head, a connecting column and a trigger head arranged in a split mode, the trigger head and the force receiving head are respectively slidably fitted and installed in the cylinder sleeve and the sliding seat pipe, the connecting column is used for detachably connecting the trigger head and the force receiving head; a first force receiving part is arranged at the end of the force receiving head, the first force receiving part is in contact with a plurality of steel columns mounted in the mounting holes, and is used for limiting the axial movement of the explosion isolation piston; a trigger sleeve is slidably mounted on the outside of the sliding seat pipe, the trigger sleeve is used for limiting the axial movement of the steel column along the mounting hole; a reserved groove for accommodating the steel column is formed on the inner side wall of the trigger sleeve; the reserved groove is used for releasing the limitation on the steel column when the trigger sleeve slides along the sliding seat pipe.

2. The mine automatic explosion isolation device according to claim 1, characterized in that: the preset hole comprises a preset hole for mounting a pressure gauge and a pressure sensor.

3. The mine automatic explosion isolation device according to claim 1, characterized in that: a first threaded hole is formed at the end of the first force receiving part, the first threaded hole is used for mounting a spring assembly, and the spring assembly is used for adjusting the thrust of the high-pressure gas on the whole explosion isolation piston; the sliding seat pipe is further provided with a mounting seat for fitting and mounting the spring assembly.

4. The mine automatic explosion isolation device according to claim 1, characterized in that: an end plate is threadedly mounted at the end of the sliding seat pipe, a first threaded hole for connecting a trigger rod is formed on the end plate.

5. The mine automatic explosion isolation device according to any one of claims 1 to 4, characterized in that: a limit screw is further mounted on the trigger sleeve, and is used for limiting the relative sliding between the trigger sleeve and the sliding seat pipe.

6. An explosion isolation piston applied to the mine automatic explosion isolation device according to claim 3, characterized in that: the explosion isolation piston comprises a force receiving head, a connecting column and a trigger head arranged in a split mode, the trigger head and the force receiving head are respectively slidably fitted and installed in the cylinder sleeve and the sliding seat pipe, the connecting column is used for detachably connecting the trigger head and the force receiving head; a first force receiving part is arranged at the end of the force receiving head, a second threaded hole is formed at the end of the first force receiving part, the first threaded hole is used for mounting a spring assembly, and the spring assembly is used for adjusting the thrust of the high-pressure gas on the whole explosion isolation piston.

7. The explosion isolation piston according to claim 6, characterized in that: a second force receiving part is arranged at the end of the trigger head.

8. The explosion isolation piston according to claim 6, characterized in that: a plurality of first sealing grooves and second sealing grooves are respectively arranged on the side of the trigger head and the side of the force receiving head, and are used for mounting corresponding rubber sealing rings.

9. The explosion isolation piston according to any one of claims 6 to 8, characterized in that: ​ The third threaded holes are arranged at the ends of the trigger head and the force-receiving head corresponding to the ends of the connecting column, and corresponding threaded connectors are arranged at the two ends of the connecting column.

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