Mine roadway supporting device

Abstract

The utility model relates to the technical field of mine laneway supporting, and discloses a mine laneway supporting device which comprises arc-shaped laneway supports installed in a mine laneway and distributed in the length direction of the mine laneway. Each arc-shaped protection plate is mounted between the adjacent arc-shaped roadway brackets; the two sets of supporting leg assemblies are detachably installed at the bottom ends between the adjacent arc-shaped roadway supports respectively; and each connecting piece is detachably mounted between the adjacent arc-shaped roadway brackets. According to the supporting device, after each arc-shaped protection plate is installed between the adjacent arc-shaped roadway supports, broken stones and muck in a roadway can be effectively prevented from falling down, so that workers in an underground coal mine can safely work in the supporting device, meanwhile, due to the fact that the cross section of each arc-shaped roadway support is in an I shape, the safety of the workers is improved, and the safety of the workers is improved. And the anti-pressure capability of each arc-shaped roadway bracket is better.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tunnel support, in particular to a mine tunnel support device. Background Art

[0002] During the mining process of the mine, as the tunnel excavation speed and efficiency increase, before the permanent support of the tunnel is completed, timely measures must be taken to erect temporary support to ensure that the tunnel will not collapse and threaten the lives of construction workers.

[0003] For example, patent document CN215804616U discloses a mine tunnel support device, including a fixed base plate, a supporting mechanism welded to the top outer wall of the fixed base plate, and a fixed block welded to the top of the supporting mechanism, positioning holes are opened on the outer walls on the opposite sides of the tops of the two supporting mechanisms, and positioning rods are inserted into the inner walls of the positioning holes, a fixing tube is welded to the outer wall of the positioning rod, and a fixing rod is slidably inserted into the inside of the fixing tube, an arc-shaped top plate is welded to the top of the fixed block, and mounting plates are fixed to the outer walls on both sides of the fixed block, and a first L-shaped strut and a second L-shaped strut are respectively fixed to the inner walls on the opposite sides of the supporting mechanism.

[0004] However, in combination with the above patent documents Figure 1-Figure 4 It can be seen that after the mine tunnel support device is installed in the tunnel, it cannot effectively prevent the falling of gravel and slag in the tunnel.

[0005] Based on this, a mine tunnel supporting device is proposed. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art, the utility model provides a mine tunnel support device to solve the problem raised in the background technology: the mine tunnel support device in the prior art cannot effectively prevent the falling of gravel and slag in the tunnel after being installed in the tunnel.

[0008] (II) Technical solution

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A mine tunnel support device, comprising:

[0011] An arc-shaped tunnel support installed in a mine tunnel, wherein a plurality of arc-shaped tunnel supports are provided, and the plurality of arc-shaped tunnel supports are distributed along the length direction of the mine tunnel;

[0012] A plurality of arc-shaped protective plates are provided, each of which is installed between adjacent arc-shaped tunnel supports;

[0013] The support leg assemblies are provided in two groups, and the two groups of the support leg assemblies are respectively detachably mounted at the bottom ends between adjacent arc-shaped lane supports; and

[0014] A plurality of connecting pieces are provided, each of which can be detachably installed between adjacent arc-shaped lane supports.

[0015] Preferably, the cross section of each of the arc-shaped laneway brackets is I-shaped, and an embedding groove is formed on both sides;

[0016] Each of the arc-shaped protective plates is fixedly installed between adjacent arc-shaped tunnel supports.

[0017] Preferably, a plurality of positioning holes are provided on the side wall of each of the arc-shaped protective plates;

[0018] Each of the positioning holes is rhombus-shaped, and the side length of each of the positioning holes is 2mm-5mm.

[0019] Preferably, the thickness of each of the arc-shaped protective plates is 10 mm-20 mm.

[0020] Preferably, the two groups of the support leg assemblies each include a first connecting plate, and each of the first connecting plates is plugged and installed at the bottom of the adjacent embedding groove;

[0021] The two groups of support leg assemblies further include extension plates, and each of the extension plates is fixedly mounted on the inner side wall of the first connecting plate.

[0022] Preferably, each of the connecting members is a second connecting plate, and each of the second connecting plates is arranged at the top of the inner arc surface between adjacent arc-shaped lane supports;

[0023] Both ends of each second connecting plate are screwed with fastening bolts, and each second connecting plate fastens and connects adjacent arc-shaped lane supports through two fastening bolts.

[0024] Preferably, a lifting member is provided below each of the second connecting plates.

[0025] Preferably, each of the lifting members is a single hydraulic support, and the piston rod end of each of the single hydraulic support is fixedly connected to the bottom of the corresponding second connecting plate;

[0026] When the piston rod of the single hydraulic strut moves upward, the corresponding second connecting plate can be lifted upward.

[0027] Beneficial effects:

[0028] The utility model provides a mine tunnel support device, which has the following beneficial effects:

[0029] 1. In the utility model, after each arc-shaped protective plate is installed between adjacent arc-shaped tunnel supports, it can effectively prevent the broken stones and slag in the tunnel from falling downward, so that the workers in the coal mine can work safely inside the supporting device.

[0030] 2. In the present invention, since the cross section of each arc-shaped tunnel support is in an I-shape, each arc-shaped tunnel support has better compressive resistance.

[0031] 3. In the present invention, a dustproof net can be laid on the outer side wall of each arc-shaped protective plate. Laying the dustproof net on the arc-shaped protective plate can prevent dust in the tunnel from entering the supporting device.

[0032] 4. In the present invention, after the dustproof net is laid on the arc-shaped protective plate, the dustproof net and the arc-shaped protective plate can be fastened together by iron wire. Specifically, the iron wire can be inserted into the positioning hole to fix the dustproof net laid on the arc-shaped protective plate.

[0033] 5. In the utility model, after the two sets of support leg assemblies are installed, the support device can be made more stable. Specifically, under the joint action of the first connecting plate and the extension plate, the contact area between the support device and the ground can be increased, thereby making the support device more stable.

[0034] 6. In the present invention, after each connecting member is installed between adjacent arc-shaped tunnel supports, multiple arc-shaped tunnel supports can be fastened and connected, so that the supporting device forms a whole.

[0035] 7. In the utility model, a lifting piece is provided under each second connecting plate, and each lifting piece is a single hydraulic support. The piston rod end of each single hydraulic support is fixedly connected to the bottom of the corresponding second connecting plate, and when the piston rod of the single hydraulic support moves upward, the corresponding second connecting plate can be lifted upward, thereby effectively improving the stability of the support device and avoiding compression deformation of the support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0037] Figure 2 It is a three-dimensional schematic diagram of the present invention when viewed from above;

[0038] Figure 3 for Figure 2 The enlarged three-dimensional schematic diagram of part A in the middle;

[0039] Figure 4 It is a three-dimensional schematic diagram of the arc-shaped tunnel support of the utility model;

[0040] Figure 5It is a three-dimensional schematic diagram of the arc-shaped protective plate of the utility model;

[0041] Figure 6 It is a three-dimensional schematic diagram of the fifth embodiment of the utility model.

[0042] In the figure: 10, arc-shaped tunnel support; 101, mounting groove; 20, arc-shaped protective plate; 201, positioning hole; 30, support leg assembly; 301, first connecting plate; 302, extension plate; 40, connecting piece; 401, second connecting plate; 402, fastening bolt; 50, lifting piece; 501, single hydraulic support. DETAILED DESCRIPTION

[0043] 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.

[0044] Embodiment 1

[0045] Patent document CN215804616U discloses a mine tunnel support device. However, after the mine tunnel support device disclosed in the above patent document is installed in the tunnel, it cannot effectively prevent the falling of gravel and slag in the tunnel.

[0046] Based on this, in order to solve the above technical problems, the inventors have adopted the following technical solutions, which are as follows:

[0047] like Figure 1-6 As shown, the utility model provides a technical solution:

[0048] A mine tunnel support device, comprising:

[0049] An arc-shaped tunnel support 10 installed in a mine tunnel, wherein a plurality of arc-shaped tunnel supports 10 are provided, and the plurality of arc-shaped tunnel supports 10 are distributed along the length direction of the mine tunnel;

[0050] Wherein, the spacing between adjacent arc-shaped lane supports 10 is equal;

[0051] A plurality of arc-shaped protection plates 20 are provided, and each arc-shaped protection plate 20 is installed between adjacent arc-shaped tunnel supports 10;

[0052] Among them, when each arc-shaped protective plate 20 is installed between adjacent arc-shaped tunnel supports 10, it can effectively prevent the broken stones and slag in the tunnel from falling downward, so that the workers in the coal mine can work safely inside the supporting device.

[0053] The support leg assembly 30 is provided in two groups, and the two groups of support leg assemblies 30 are respectively detachably installed at the bottom ends between adjacent arc-shaped lane supports 10;

[0054] After the two groups of support leg assemblies 30 are installed, the support device can be made more stable.

[0055] And a plurality of connecting members 40 are provided, and each connecting member 40 can be detachably installed between adjacent arc-shaped tunnel supports 10 .

[0056] When each connecting member 40 is installed between adjacent arc-shaped tunnel supports 10 , multiple arc-shaped tunnel supports 10 can be fastened and connected, so that the supporting device forms a whole.

[0057] Embodiment 2

[0058] like Figure 1-6 As shown, based on the first embodiment, the following improvements are made:

[0059] In order to optimize the specific structure of the arc-shaped tunnel support 10, the inventors have, in this embodiment, further, the cross section of each arc-shaped tunnel support 10 is I-shaped, and an embedding groove 101 is formed on both sides;

[0060] Each arc-shaped protection plate 20 is fixedly installed between adjacent arc-shaped tunnel supports 10 .

[0061] Among them, since the cross-section of each arc-shaped tunnel support 10 is I-shaped, each arc-shaped tunnel support 10 has better compressive resistance, and each arc-shaped protective plate 20, after being installed between adjacent arc-shaped tunnel supports 10, can shield the gravel and slag in the tunnel, so that workers in the coal mine can work safely in the arc-shaped protective plate 20.

[0062] A dustproof net can be laid on the outer side wall of each arc-shaped protective plate 20. Laying the dustproof net on the arc-shaped protective plate 20 can prevent dust in the tunnel from entering the supporting device.

[0063] In order to enable the dust screen to be fixed on the arc-shaped protective plate 20, the inventor further provides a plurality of positioning holes 201 on the side wall of each arc-shaped protective plate 20 in this embodiment;

[0064] Each positioning hole 201 is in a rhombus shape, and the side length of each positioning hole 201 is 2 mm-5 mm.

[0065] After the dustproof net is laid on the arc-shaped protective plate 20 , the dustproof net and the arc-shaped protective plate 20 can be fastened together by iron wire. Specifically, the iron wire can be inserted into the positioning hole 201 to fix the dustproof net laid on the arc-shaped protective plate 20 .

[0066] In order to improve the protective performance of each arc-shaped protective plate 20, the inventors, in this embodiment, further, the thickness of each arc-shaped protective plate 20 is 10 mm-20 mm.

[0067] When the thickness of each arc-shaped protective plate 20 is between 10 mm and 20 mm, the protective effect of the arc-shaped protective plate 20 is better.

[0068] Embodiment 3

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

[0070] In order to optimize the specific structure of the two groups of leg assemblies 30, the inventors further provide that in this embodiment, the two groups of leg assemblies 30 each include a first connecting plate 301, and each first connecting plate 301 is plugged and installed at the bottom of the adjacent embedding groove 101;

[0071] The two groups of support leg assemblies 30 further include extension plates 302 , and each extension plate 302 is fixedly mounted on the inner side wall of the first connecting plate 301 .

[0072] Under the joint action of the first connecting plate 301 and the extending plate 302, the contact area between the supporting device and the ground can be increased, thereby making the supporting device more stable.

[0073] Embodiment 4

[0074] like Figure 1-6 As shown, based on the second embodiment, the following improvements are made:

[0075] In order to optimize the specific structure of the connecting member 40, the inventor further, in this embodiment, each connecting member 40 is a second connecting plate 401, and each second connecting plate 401 is arranged at the top of the inner arc surface between adjacent arc-shaped lane supports 10;

[0076] Both ends of each second connecting plate 401 are screwed with fastening bolts 402 , and each second connecting plate 401 fastens and connects adjacent arc-shaped tunnel supports 10 through two fastening bolts 402 , thereby improving the integrity and stability of the supporting device.

[0077] Embodiment 5

[0078] like Figure 1-6 As shown, based on the fourth embodiment, the following improvements are made:

[0079] In order to increase the stability of the supporting device and prevent the supporting device from being deformed by pressure, the inventors further provide a lifting member 50 under each second connecting plate 401 in this embodiment.

[0080] In order to optimize the specific structure of the lifting member 50, the inventor further, in this embodiment, each lifting member 50 is a single hydraulic support 501, and the piston rod end of each single hydraulic support 501 is fixedly connected to the bottom of the corresponding second connecting plate 401;

[0081] When the piston rod of the single hydraulic support 501 moves upward, the corresponding second connecting plate 401 can be lifted upward, thereby effectively improving the stability of the support device and preventing the support device from being compressed and deformed.

[0082] In summary, the workflow of the utility model is:

[0083] like Figure 1-6 As shown, multiple arc-shaped tunnel supports 10 are installed in the mine tunnel and distributed along the length direction of the mine tunnel, and arc-shaped protective plates 20 are fixedly installed between adjacent arc-shaped tunnel supports 10. Under the joint action of multiple arc-shaped tunnel supports 10 and arc-shaped protective plates 20, it can effectively prevent gravel and slag in the tunnel from falling downward, so that workers in the coal mine can work safely inside the support device.

[0084] Two groups of support leg assemblies 30 are installed at the bottom ends between adjacent arc-shaped tunnel supports 10. After the two groups of support leg assemblies 30 are installed, the support device can be made more stable.

[0085] Connecting members 40 are also installed between the inner sides of adjacent arc-shaped tunnel supports 10. When each connecting member 40 is installed between adjacent arc-shaped tunnel supports 10, multiple arc-shaped tunnel supports 10 can be fastened and connected, so that the supporting device forms a whole.

[0086] In order to increase the stability of the support device and avoid compression and deformation of the support device, a lifting member 50 is arranged under each second connecting plate 401. The lifting member 50 is a single hydraulic support 501. The piston rod end of each single hydraulic support 501 is fixedly connected to the bottom of the corresponding second connecting plate 401, and when the piston rod of the single hydraulic support 501 moves upward, the corresponding second connecting plate 401 can be lifted upward, thereby effectively improving the stability of the support device and avoiding compression and deformation of the support device.

[0087] The above different embodiments can be combined, replaced and used in conjunction with each other.

[0088] 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.

[0089] 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. A mine tunnel support device, characterized in that: include: An arc-shaped tunnel support (10) installed in a mine tunnel, wherein a plurality of arc-shaped tunnel supports (10) are provided, and the plurality of arc-shaped tunnel supports (10) are distributed along the length direction of the mine tunnel; A plurality of arc-shaped protective plates (20) are provided, and each of the arc-shaped protective plates (20) is installed between adjacent arc-shaped tunnel supports (10); Support leg assemblies (30), which are provided in two groups, and the two groups of support leg assemblies (30) are respectively detachably mounted at the bottom ends between adjacent arc-shaped lane supports (10); and A plurality of connecting members (40) are provided, and each of the connecting members (40) can be detachably installed between adjacent arc-shaped tunnel supports (10).

2. A mine tunnel support device according to claim 1, characterized in that: The cross section of each arc-shaped tunnel support (10) is I-shaped, and an embedding groove (101) is formed on both sides; Each of the arc-shaped protection plates (20) is fixedly installed between adjacent arc-shaped tunnel supports (10).

3. A mine tunnel support device according to claim 2, characterized in that: A plurality of positioning holes (201) are provided on the side wall of each arc-shaped protective plate (20); Each of the positioning holes (201) is in a rhombus shape, and the side length of each of the positioning holes (201) is 2 mm to 5 mm.

4. A mine tunnel support device according to claim 2 or 3, characterized in that: The thickness of each arc-shaped protective plate (20) is 10 mm to 20 mm.

5. A mine tunnel support device according to claim 2, characterized in that: The two groups of support leg assemblies (30) each comprise a first connecting plate (301), and each of the first connecting plates (301) is plugged and installed at the bottom of an adjacent embedding groove (101); The two groups of support leg assemblies (30) further include extension plates (302), and each of the extension plates (302) is fixedly mounted on the inner side wall of the first connecting plate (301).

6. A mine tunnel support device according to claim 2, characterized in that: Each of the connecting members (40) is a second connecting plate (401), and each of the second connecting plates (401) is arranged at the top of the inner arc surface between adjacent arc-shaped tunnel supports (10); Both ends of each second connection plate (401) are screwed with fastening bolts (402), and each second connection plate (401) fastens and connects adjacent arc-shaped tunnel supports (10) via two fastening bolts (402).

7. A mine tunnel support device according to claim 6, characterized in that: A lifting member (50) is provided below each of the second connecting plates (401).

8. A mine tunnel support device according to claim 7, characterized in that: Each of the lifting members (50) is a single hydraulic support (501), and the piston rod end of each of the single hydraulic support (501) is fixedly connected to the bottom of the corresponding second connecting plate (401); When the piston rod of the single hydraulic support (501) moves upward, the corresponding second connecting plate (401) can be lifted upward.

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