Flexible safety dustproof net for underground coal mine

Abstract

The utility model relates to the technical field of coal mine dust screens, and discloses a flexible safety dust screen for an underground coal mine, which comprises a flexible fixing frame made of rubber, the upper dustproof net and the lower dustproof net are formed by weaving polyethylene net ropes and are fixedly mounted on the upper portion and the lower portion of an inner cavity of the flexible fixing frame respectively; the number of the hooks is four; the locking butt joint structure is arranged on the flexible fixing frame; the locking butt joint structure comprises two cross-shaped locking blocks and two cross-shaped locking grooves. According to the utility model, the flexible safety dustproof nets can be combined and butted in pairs through the locking and butting structures, so that the flexible safety dustproof nets can be adjusted according to the length and width of the roadway, and after the flexible safety dustproof nets are butted in pairs, the flexible safety dustproof nets can completely cover the coal mine roadway; when the flexible safety dust screens are combined and butted in pairs, the cross locking blocks can be clamped and mounted in the cross locking grooves, and after clamping, the adjacent flexible fixing frames are locked and butted.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine dustproof nets, in particular to a flexible safety dustproof net used in underground coal mines. Background Art

[0002] The flexible safety dust-proof net used in underground coal mines utilizes the principles of aerodynamics and is processed into a wind-proof and dust-suppressing wall with a certain geometric shape, opening rate and different hole shape combination according to the results of on-site environmental wind tunnel experiments. When the circulating air passes through the wall from the outside, upward and downward interfering airflows are formed on the inside of the wall to achieve the effect of strong wind on the outside, weak wind on the inside, small wind on the outside, and no wind on the inside. When used in the mining and excavation working face in underground coal mines, it can reduce dust, prevent dust, and prevent the spread of coal dust and powder dust.

[0003] Patent document CN204402545U discloses a flexible safety dust-proof net for underground coal mines, comprising a mesh body woven from polyethylene mesh ropes, a mesh being formed on the mesh body, the mesh body having a width of 2-5m, a mesh body thickness of 2.5-3.0mm, a mesh shape being diamond-shaped, and a mesh side length being no greater than 5mm, and side ropes being arranged at the edge of the mesh body to form support for the mesh.

[0004] However, the flexible safety dustproof net disclosed in the above patent document still has certain technical defects in actual use, which are specifically analyzed as follows:

[0005] Since the distance of the mine tunnel is long and the length and width of the flexible safety dust-proof net are limited, the flexible safety dust-proof net can only partially cover the tunnel and cannot fully cover the tunnel.

[0006] Based on this, a flexible safety dust-proof net is proposed for use in underground coal mines. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the shortcomings of the prior art, the utility model provides a flexible safety dust-proof net for use in underground coal mines to solve the problem raised in the background technology: since the distance of mine tunnels is relatively long and the length and width of the flexible safety dust-proof nets in the prior art are limited, the flexible safety dust-proof nets in the prior art can only provide partial coverage in the tunnel and cannot provide full coverage in the tunnel.

[0009] (II) Technical solution

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] Flexible safety dust-proof net for underground coal mines, including:

[0012] A flexible fixing frame made of rubber;

[0013] The upper dustproof net and the lower dustproof net are woven from polyethylene mesh ropes and are respectively fixedly installed on the upper and lower parts of the inner cavity of the flexible fixed frame;

[0014] There are four hooks, which are respectively arranged at four corners of the flexible fixing frame; and

[0015] A locking docking structure, which is arranged on the flexible fixing frame;

[0016] The locking and docking structure includes two cross locking blocks and two cross locking grooves, wherein the two cross locking blocks are respectively arranged on the middle of the side walls adjacent to two sides of the flexible fixing frame, and the two cross locking grooves are respectively arranged on the middle of the side walls adjacent to the other two sides of the flexible fixing frame;

[0017] Wherein, the two cross locking blocks are integrally formed with the flexible fixing frame;

[0018] Wherein, the positions of each group of cross locking blocks and cross locking grooves correspond to each other.

[0019] Preferably, the tops of the two cross-locking grooves are open and the bottoms are closed, and the shape and size of the two cross-locking blocks are equal to the shape and size of the corresponding cross-locking grooves.

[0020] Preferably, the thickness of the upper dustproof net and the lower dustproof net are both 3.5mm~5mm.

[0021] Preferably, the upper dustproof net is provided with a plurality of meshes, each of which is rhombus-shaped, and the side length of each of which is 2 mm to 3 mm.

[0022] Preferably, the lower dustproof net is provided with a plurality of lower meshes, each of the lower meshes is diamond-shaped, and the side length of each of the lower meshes is 2 mm to 3 mm.

[0023] Preferably, each of the hooks is composed of a connecting rod and a hook ring installed on the connecting rod, the bottom of the connecting rod is fixedly installed on the flexible fixing frame, and the hook ring is integrally formed with the connecting rod.

[0024] Preferably, each of the hook rings has a notch.

[0025] (III) Beneficial effects

[0026] The utility model provides a flexible safety dust-proof net for underground coal mines, which has the following beneficial effects:

[0027] 1. In the utility model, the flexible safety dust-proof net can be combined and docked in pairs through a locking docking structure, so that the flexible safety dust-proof net can be adjusted according to the length and width of the tunnel. After being docked in pairs, the flexible safety dust-proof net can achieve full coverage in the coal mine tunnel.

[0028] 2. In the present invention, when the flexible safety dustproof nets are combined and docked in pairs, the cross locking blocks can be snap-fitted and installed in the cross locking grooves, and after snap-fitting, the adjacent flexible fixing frames can be locked and docked.

[0029] 3. In the present invention, since the bottoms of the two cross-locking grooves are both closed, when the cross-locking block is engaged and installed in the corresponding cross-locking groove, the cross-locking block will not fall off in the cross-locking groove.

[0030] Fourth, in the present invention, the flexible safety dust-proof net has a double-layer arrangement, so it can effectively improve the dust suppression effect, thereby limiting the occurrence of secondary dust.

[0031] 5. In the utility model, after being laid, the flexible safety dustproof net can also effectively prevent sand, gravel, and broken soil debris from falling.

[0032] 6. In the present invention, since four hooks are provided on the flexible fixing frame, the four hooks can facilitate the hanging of the flexible safety dustproof net in the lane. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0034] Figure 2 It is a three-dimensional schematic diagram of a partial cross section of the utility model;

[0035] Figure 3 for Figure 2 The enlarged three-dimensional schematic diagram of part A in the middle;

[0036] Figure 4 It is a three-dimensional schematic diagram of the present invention when viewed from above;

[0037] Figure 5 It is a three-dimensional schematic diagram of the utility model after two are docked;

[0038] Figure 6 for Figure 5 A three-dimensional schematic diagram of the enlarged portion B in the middle.

[0039] In the figure: 10, flexible fixing frame; 101, cross locking block; 102, cross locking groove; 20, upper dustproof net; 201, upper mesh; 30, lower dustproof net; 301, lower mesh; 40, hook; 401, connecting rod; 402, hook ring; 403, notch. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Embodiment 1

[0042] Patent document CN204402545U discloses a flexible safety dust-proof net for underground coal mines. However, the flexible safety dust-proof net disclosed in the above patent document still has certain technical defects in actual use, which are specifically analyzed as follows:

[0043] Since the distance of the mine tunnel is long and the length and width of the flexible safety dust-proof net are limited, the flexible safety dust-proof net can only partially cover the tunnel and cannot fully cover the tunnel.

[0044] Therefore, in order to solve the technical problem that "due to the long distance of the mine tunnel and the limited length and width of the flexible safety dust-proof net in the prior art, the flexible safety dust-proof net in the prior art can only partially cover the tunnel and cannot cover the entire tunnel", the inventor has adopted the following technical solutions, which are as follows:

[0045] like Figure 1-6 As shown, the utility model provides a technical solution:

[0046] Flexible safety dust-proof net for underground coal mines, including:

[0047] A flexible fixing frame 10 made of rubber;

[0048] An upper dustproof net 20 and a lower dustproof net 30 woven from polyethylene mesh ropes are respectively fixedly mounted on the upper and lower parts of the inner cavity of the flexible fixing frame 10;

[0049] The upper dustproof net 20 and the lower dustproof net 30 in the flexible safety dustproof net are made of high-density polyethylene as the main raw material, and various reagents such as anti-aging agent, cross-linking enhancer, flame retardant, and antistatic agent are added, fully mixed, stirred evenly, drawn into wires, and woven into a flexible mesh with a special mesh structure;

[0050] Hooks 40, of which four are provided, and the four hooks 40 are respectively provided at the four corners of the flexible fixing frame 10;

[0051] and a locking docking structure, which is arranged on the flexible fixing frame 10;

[0052] The locking and docking structure includes two cross locking blocks 101 and two cross locking grooves 102. The two cross locking blocks 101 are respectively arranged on the middle of the adjacent side walls on two sides of the flexible fixing frame 10, and the two cross locking grooves 102 are respectively arranged on the middle of the adjacent side walls on the other two sides of the flexible fixing frame 10.

[0053] The two cross locking blocks 101 are integrally formed with the flexible fixing frame 10;

[0054] The positions of each group of cross locking blocks 101 and cross locking grooves 102 correspond to each other.

[0055] In this embodiment, the flexible safety dustproof net can be combined and docked in pairs through a locking docking structure, so that the flexible safety dustproof net can be adjusted according to the length and width of the tunnel. After docking in pairs, the flexible safety dustproof net can achieve full coverage in the coal mine tunnel.

[0056] Specifically, when the flexible safety dustproof nets are combined and docked in pairs, the cross locking blocks 101 can be snap-fitted and installed in the cross locking grooves 102 , and after being snap-fitted, adjacent flexible fixing frames 10 can be locked and docked.

[0057] In this embodiment, the flexible safety dust-proof net is laid in the tunnel of a coal mine after being docked and assembled, and is used to reduce and prevent dust at the coal mining working face, and to block the outward diffusion of coal dust, powder dust, and coal powder.

[0058] The flexible safety dust-proof net has a double-layer setting, so it can effectively improve the dust suppression effect, thereby limiting the occurrence of secondary dust;

[0059] Moreover, after being laid, the flexible safety dustproof net can also effectively prevent sand, gravel, and broken soil debris from falling.

[0060] In this embodiment, since four hooks 40 are provided on the flexible fixing frame 10 , the four hooks 40 can facilitate the hanging of the flexible safety dustproof net in the lane.

[0061] Embodiment 2

[0062] like Figure 1-6 As shown, based on the first embodiment, the following improvements are made:

[0063] In order to enable each set of cross locking blocks 101 and cross locking grooves 102 to dock with each other, the inventors, in this embodiment, further, the tops of the two cross locking grooves 102 are open and the bottoms are closed, and the shapes and sizes of the two cross locking blocks 101 are equal to the shapes and sizes of the corresponding cross locking grooves 102. Since the bottoms of the two cross locking grooves 102 are closed, when the cross locking blocks 101 are snap-fitted and installed in the corresponding cross locking grooves 102, the cross locking blocks 101 will not fall off in the cross locking grooves 102.

[0064] In order to make the upper dustproof net 20 and the lower dustproof net 30 more wear-resistant and durable, the inventors, in this embodiment, further, the thickness of the upper dustproof net 20 and the lower dustproof net 30 are both 3.5 mm to 5 mm.

[0065] In order to improve the dust suppression effect in the tunnel, the inventors, in this embodiment, further, provide a plurality of upper meshes 201 on the upper dustproof net 20, each of which is diamond-shaped, and the side length of each upper mesh 201 is 2mm~3mm.

[0066] Furthermore, a plurality of lower meshes 301 are provided on the lower dustproof net 30 , each of the lower meshes 301 is in a diamond shape, and the side length of each of the lower meshes 301 is 2 mm to 3 mm.

[0067] When the side length of each upper mesh 201 and lower mesh 301 is between 2 mm and 3 mm, the flexible safety dust-proof net has a better dust suppression effect in the tunnel.

[0068] Embodiment 3

[0069] like Figure 1-6 As shown, based on the first embodiment, the following improvements are made:

[0070] In order to optimize the specific structure of each hook 40, the inventor has, in this embodiment, further, each hook 40 is composed of a connecting rod 401 and a hook ring 402 installed on the connecting rod 401, the bottom of the connecting rod 401 is fixedly installed on the flexible fixed frame 10, and the hook ring 402 is integrally formed with the connecting rod 401.

[0071] Furthermore, each hook ring 402 has a notch portion 403 .

[0072] When coal miners work in the tunnels underground, steel wires are arranged on the inner walls of the tunnels, and the steel wires are distributed on the inner walls of the tunnels in a horizontal and vertical interlaced manner. The flexible safety dustproof net can hang the hook 40 on the steel wires in the tunnel, thereby realizing the suspension of the flexible safety dustproof net in the tunnel.

[0073] Specifically, the hook 402 can be hung on the steel wire through the notch portion 403 .

[0074] In summary, the workflow of the utility model is:

[0075] like Figure 1-6 As shown, the flexible safety dust-proof net can be combined and docked in pairs through a locking docking structure, so that the flexible safety dust-proof net can be adjusted according to the length and width of the lane;

[0076] Specifically, when the flexible safety dustproof nets are combined and docked in pairs, the cross locking blocks 101 can be snap-fitted and installed in the cross locking grooves 102 , and after being snap-fitted, adjacent flexible fixing frames 10 can be locked and docked.

[0077] After being docked and assembled, the flexible safety dust-proof net is laid in the tunnel of a coal mine to reduce and prevent dust at the coal mining working face and to block the outward diffusion of coal dust, powder dust and coal powder.

[0078] The flexible safety dust-proof net has a double-layer setting, so it can effectively improve the dust suppression effect, thereby limiting the occurrence of secondary dust;

[0079] Moreover, after being laid, the flexible safety dustproof net can also effectively prevent sand, gravel, and broken soil debris from falling.

[0080] Since four hooks 40 are provided on the flexible fixing frame 10, the four hooks 40 can facilitate the hanging of the flexible safety dustproof net in the lane;

[0081] Specifically, when coal miners work in the tunnels underground, steel wires are arranged on the inner walls of the tunnels, and the steel wires are distributed on the inner walls of the tunnels in a horizontal and vertical interlaced manner. The flexible safety dust-proof net can hang the hook 40 on the steel wires in the tunnel, thereby realizing the suspension of the flexible safety dust-proof net in the tunnel.

[0082] The above different embodiments can be combined, replaced and used in conjunction with each other.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0084] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Flexible safety dust-proof net for underground coal mines, characterized in that: include: A flexible fixing frame (10) made of rubber; An upper dustproof net (20) and a lower dustproof net (30) woven from polyethylene net ropes, which are respectively fixedly mounted on the upper and lower parts of the inner cavity of the flexible fixing frame (10); four hooks (40) are provided, and the four hooks (40) are respectively arranged at four corners of the flexible fixing frame (10); and A locking docking structure, which is arranged on the flexible fixing frame (10); The locking docking structure comprises two cross locking blocks (101) and two cross locking grooves (102); the two cross locking blocks (101) are respectively arranged on the middle of two adjacent side walls of the flexible fixing frame (10), and the two cross locking grooves (102) are respectively arranged on the middle of the other two adjacent side walls of the flexible fixing frame (10); Wherein, the two cross locking blocks (101) are integrally formed with the flexible fixing frame (10); Wherein, the positions of each group of the cross locking blocks (101) and the cross locking grooves (102) correspond to each other.

2. The flexible safety dust-proof net for underground coal mines according to claim 1 is characterized in that: The tops of the two cross locking grooves (102) are both open and the bottoms are both closed, and the shape and size of the two cross locking blocks (101) are equal to the shape and size of the corresponding cross locking grooves (102).

3. The flexible safety dust-proof net for underground coal mines according to claim 1 is characterized in that: The thickness of the upper dustproof net (20) and the lower dustproof net (30) are both 3.5 mm to 5 mm.

4. The flexible safety dust-proof net for underground coal mines according to claim 3 is characterized in that: The upper dustproof net (20) is provided with a plurality of upper meshes (201), each of the upper meshes (201) is in a rhombus shape, and the side length of each of the upper meshes (201) is 2 mm to 3 mm.

5. The flexible safety dust-proof net for underground coal mines according to claim 3 is characterized in that: The lower dustproof net (30) is provided with a plurality of lower meshes (301), each of the lower meshes (301) is in a rhombus shape, and the side length of each of the lower meshes (301) is 2 mm to 3 mm.

6. The flexible safety dust-proof net for underground coal mines according to claim 1, characterized in that: Each hook (40) is composed of a connecting rod (401) and a hook ring (402) mounted on the connecting rod (401); the bottom of the connecting rod (401) is fixedly mounted on the flexible fixing frame (10); and the hook ring (402) and the connecting rod (401) are integrally formed.

7. The flexible safety dust-proof net for underground coal mines according to claim 6, characterized in that: Each of the hook rings (402) has a notch portion (403).

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