Modular airbag plugging device for upper corner of fully mechanized coal mining face

Abstract

The utility model relates to the technical field of mining plugging, in particular to a modular air bag plugging device for an upper corner of a fully mechanized coal mining face, which comprises a plugging air bag with an inflation inlet, an adsorption layer is arranged on the periphery of the plugging air bag, an air bag hooking edge is mounted on the plugging air bag, a third powerful magnet is arranged on the air bag hooking edge, and a second powerful magnet is arranged on the third powerful magnet. And handles are installed on the two opposite sides of the top surface of the blocking air bag, and a pull belt is installed in the blocking air bag. After the outside of the working face is directly filled with air, the device can be directly detached and moved to the position needing to be plugged, a special inflation pipeline is not needed, the situation that follow-up arrangement is tedious due to the fact that pipelines need to be added during inflation is avoided, the inflated plugging air bag is small in size and does not need to be deflated and shrunk, plugging efficiency is greatly improved, and cost is reduced. In addition, the plugging air bags are connected in a magnet adsorption mode during piling, good sealing and connecting effects can be achieved, the plugging device has the advantage of being high in adaptability, and various irregular corner spaces can be tightly plugged.

Description

Technical Field

[0001] The utility model relates to the technical field of mining plugging, and in particular to a modular airbag plugging device for the corners of a fully mechanized mining working face. Background Art

[0002] There are upper and lower corners in the fully mechanized mining working face of a coal mine. In order to prevent air leakage in the goaf, reduce spontaneous combustion and the escape of toxic and harmful gases in the goaf, the upper and lower corners need to be sealed. Since the working face is dynamic, the previous seal needs to be removed and re-sealed after each coal cut and frame move.

[0003] The traditional sealing method is to use loess and air duct cloth. In recent years, it has been optimized to use light sealing blocks, perlite or mining inflatable piles for sealing. However, mining inflatable piles are large in size, easily damaged when moving the rack, inconvenient to move, and require frequent inflation and deflation, which is slow, reducing the use effect. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that the filling and sealing devices are large in size, easily damaged when moving the frame, inconvenient to move, require frequent inflation and deflation, and the inflation and deflation are slow, which reduces the use effect. A modular airbag sealing device for the corner of the comprehensive mining working face is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A modular airbag sealing device for the upper corner of a comprehensive mining working face comprises a sealing airbag with an inflation port, an adsorption layer is provided on the outer periphery of the sealing airbag, an airbag hook is installed on the sealing airbag, a third strong magnet is provided on the airbag hook, handles are installed on opposite sides of the top surface of the sealing airbag, a drawstring is installed inside the sealing airbag, and an exhaust port is provided on the surface of the sealing airbag.

[0007] Preferably, the adsorption layer includes a first strong magnet and a second strong magnet, the first strong magnet is bonded to the three surfaces of the blocking airbag, the second strong magnet is bonded to the opposite surface of the blocking airbag where the first strong magnet is installed, and the second strong magnet is magnetically connected to the first strong magnet.

[0008] Preferably, the third strong magnets are distributed on the airbag hook in a linear array.

[0009] Preferably, the handle is provided in the shape of an annular protrusion, and outward extensions are provided on both sides of the handle, and the outward extensions of the handle are bonded to the blocking airbag.

[0010] Preferably, a sealing seat is installed on the top surface of the blocking airbag, the sealing seat is communicated with the inflation port, and a sealing plug is clamped inside the sealing seat.

[0011] Preferably, the drawstrings are distributed in a linear array within the blocking airbag, and the drawstrings are connected and installed by sewing.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The airbag of the utility model is small in size. When in use, it can be directly filled with air outside the working surface and then directly disassembled and moved to the required sealing position. No special inflation pipeline is required, which avoids the need to add pipelines during inflation, resulting in cumbersome subsequent sorting. In addition, the sealing airbag after inflation is small in size. The staff can directly pull the handle to transport and move the sealing airbag without deflating it, which greatly improves the sealing efficiency.

[0014] 2. The utility model sets an adsorption layer outside the blocking airbag and adopts magnetic adsorption to connect, so that all the airbag hooks are automatically adsorbed together, so that the connection between multiple blocking airbags is reinforced, so that the blocking airbags can play a good sealing and connecting role when stacked, reduce the generation of gaps, and improve the blocking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a modular airbag blocking device for the corner of a fully mechanized mining working face proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a modular airbag blocking device for the corner of a fully mechanized mining working face proposed by the present invention;

[0017] Figure 3 This utility model proposes a modular air bag sealing device for the corner of a fully mechanized mining working face. Figure 2 A in the middle is an enlarged structural diagram;

[0018] Figure 4 This is a schematic diagram of the splicing structure of multiple sealing airbags in a modular airbag sealing device for the corner of a fully mechanized mining working face proposed by the present invention.

[0019] In the picture:

[0020] 1. Sealing airbag; 101. Inflation port; 2. Adsorption layer; 21. First strong magnet; 22. Second strong magnet; 3. Airbag hook; 4. Third strong magnet; 5. Handle; 6. Sealing seat; 7. Sealing plug; 8. Drawstring; 9. Exhaust port. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figures 1-4 A modular airbag sealing device for the upper corner of a fully mechanized mining working face comprises a sealing airbag 1 with an inflation port 101, an adsorption layer 2 is provided on the outer periphery of the sealing airbag 1, an airbag hook 3 is installed on the sealing airbag 1, a third strong magnet 4 is provided on the airbag hook 3, handles 5 are installed on opposite sides of the top surface of the sealing airbag 1, a drawstring 8 is installed inside the sealing airbag 1, an exhaust port 9 is provided on the surface of the sealing airbag 1, a valve plug is installed in the exhaust port 9, and the valve plug is pulled out when exhaust is needed. The exhaust port 9 adopts a large-diameter hole, which can quickly exhaust air during exhaust, thereby improving exhaust efficiency.

[0023] In this embodiment, as shown in the figure, the adsorption layer 2 includes a first strong magnet 21 and a second strong magnet 22. The first strong magnet 21 is bonded to three surfaces of the blocking airbag 1, and the second strong magnet 22 is bonded to the surface of the blocking airbag 1 opposite the surface where the first strong magnet 21 is mounted. The second strong magnet 22 is magnetically connected to the first strong magnet 21. The function of the first strong magnet 21 is to provide a strong magnetic field to form a magnetic connection with the second strong magnet 22. The adsorption force between the magnets can achieve a tighter fit, thereby ensuring the blocking effect.

[0024] Furthermore, the third strong magnet 4 is distributed in a linear array on the airbag hook 3. The hook is designed with a strong magnet. After docking, all the airbag hooks 3 will automatically adsorb together, and the magnet does not produce sparks, which is convenient and simple.

[0025] In this embodiment, as shown in Figures 1 and 2, the handle 5 is provided in the shape of an annular protrusion, which is used to provide a better grip and comfort, and also facilitates the wrapping and grasping of fingers. The handle 5 is provided with outward extensions on both sides. The extensions not only increase the strength and provide a gripping point, but also serve as a fixing point for connection with the blocking airbag 1. The outward extensions of the handle 5 are bonded to the blocking airbag 1.

[0026] In this embodiment, as shown in Figures 1 and 2, a sealing seat 6 is mounted on the top surface of the blocking airbag 1. The sealing seat 6 is interconnected with the inflation port 101, and a sealing plug 7 is secured within the sealing seat 6. The inflation port 101 is an opening in the blocking airbag 1 for injecting gas (such as air, nitrogen, etc.) into the interior of the airbag to cause it to expand and achieve the desired sealing effect. The sealing seat 6 serves as a passage or interface connecting the inflation port 101 with the interior of the blocking airbag 1, into which a sealing cover is secured to prevent gas from leaking out of the inflation port 101. When the blocking airbag 1 is inflated and achieves the desired sealing effect, the sealing plug 7 fits tightly within the sealing seat 6, preventing gas from leaking into the external environment through the inflation port 101. The sealing plug 7 also prevents external impurities (such as dust and moisture) from entering the interior of the blocking airbag 1, thereby protecting the integrity and performance of the airbag.

[0027] In this embodiment, as shown in the figure, a linear array of drawstrings 8 is arranged within the blocking airbag 1, and the drawstrings 8 are connected and installed by suturing. The provision of multiple drawstrings 8 ensures that the blocking airbag 1 forms a rectangular shape rather than a spherical shape after inflation. Furthermore, during deflation, the drawstrings 8 retract, accelerating the deflation of the airbag. The specific size and specifications of the drawstrings 8 are selected based on the actual specifications of the blocking airbag 1. The specific selection and calculation methods are based on existing techniques in the art and will not be detailed here.

[0028] The functional principle of this utility model can be explained through the following operation modes:

[0029] When using this device for sealing, multiple sealing airbags 1 can be inflated directly through the inflation pipeline outside the working surface. The sealing plug 7 is pulled out to connect the inflation tube to the sealing seat 6 and the inflation port 101 so that it can be inflated. During the inflation process, the pull belt 8 can ensure that the inside of the airbag is formed into a rectangle after inflation. After the inflation is completed, the inflation tube is pulled out, and the sealing plug 7 is inserted into the sealing seat 6 to seal the inflation port 101 to prevent gas leakage. The sealing airbag 1 after inflation is smaller in size, and the staff can directly pull the handle 5 to transport and move the sealing airbag 1 without deflating and shrinking it, which greatly improves the sealing efficiency.

[0030] When transported to the desired blocking location, multiple blocking airbags 1 are stacked in sequence. During the stacking process, the first strong magnet 21 of the blocking airbag 1 will contact the second strong magnet 22 of another blocking airbag 1. When the first strong magnet 21 and the second strong magnet 22 are close to each other, a strong adsorption force will be generated between them. This force can help the blocking airbag 1 fit more tightly on the blocked surface, thereby improving the sealing effect. At the same time, the magnetic connection also makes the blocking airbag 1 more convenient and quick to install and disassemble, and when stacked, the airbag hooks 3 on the multiple blocking airbags 1 fit together, and the third strong magnet 4 also generates a magnetic attraction force in the same position, so that all the airbag hooks 3 will automatically adsorb together, so that the connection between the multiple blocking airbags 1 is reinforced, so that the blocking airbags 1 can play a good sealing and connection role when stacked, reduce the generation of gaps, and improve the blocking performance.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular airbag sealing device for the corner of a fully mechanized mining working face, comprising a sealing airbag (1) with an inflation port (101), characterized in that: An adsorption layer (2) is provided on the outer periphery of the blocking airbag (1), an airbag hook (3) is installed on the blocking airbag (1), a third strong magnet (4) is provided on the airbag hook (3), handles (5) are installed on opposite sides of the top surface of the blocking airbag (1), a drawstring (8) is installed inside the blocking airbag (1), and an exhaust port (9) is provided on the surface of the blocking airbag (1).

2. A modular airbag sealing device for corners of a fully mechanized mining working face according to claim 1, characterized in that: The adsorption layer (2) includes a first strong magnet (21) and a second strong magnet (22), wherein the first strong magnet (21) is bonded to three surfaces of the blocking airbag (1), and the second strong magnet (22) is bonded to a surface of the blocking airbag (1) opposite to the surface on which the first strong magnet (21) is mounted, and the second strong magnet (22) is magnetically connected to the first strong magnet (21).

3. The modular airbag sealing device for the corner of a fully mechanized mining working face according to claim 1 is characterized in that: The third strong magnets (4) are distributed in a linear array on the airbag hook (3).

4. The modular airbag sealing device for the corner of a fully mechanized mining face according to claim 1 is characterized in that: The handle (5) is arranged in the shape of an annular protrusion, and outward extensions are provided on both sides of the handle (5), and the outward extension of the handle (5) is bonded to the blocking airbag (1).

5. The modular airbag sealing device for the corner of a fully mechanized mining working face according to claim 1 is characterized in that: A sealing seat (6) is installed on the top surface of the blocking airbag (1), the sealing seat (6) and the inflation port (101) are in communication with each other, and a sealing plug (7) is clamped inside the sealing seat (6).

6. The modular airbag sealing device for the corner of a fully mechanized mining face according to claim 1 is characterized in that: The drawstrings (8) are distributed in a linear array within the blocking airbag (1), and the drawstrings (8) are connected and installed by sewing.

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