Non-stop continuous air duct for coal mine driving working face

Abstract

The utility model relates to the technical field of mine ventilation, in particular to a coal mine driving face non-stop continuous air duct which comprises an air duct and a butt joint assembly, the butt joint assembly comprises a shell, a limiting rod, a spring, a circular ring and an L-shaped plate, and the L-shaped plate is provided with a limiting hole. The limiting rod of the current device is pulled, then the air duct of the next device is in butt joint with the air duct of the current device, the limiting rod is loosened, and the limiting rod is matched with the limiting hole under the elastic force action of the spring, so that the L-shaped plate is limited, the current device and the next device are fixed, and butt joint installation is completed; when the air duct needs to be disassembled, the limiting rod is pulled to be separated from the limiting hole, so that the air duct is convenient to disassemble, the device can be quickly assembled and disassembled, the working efficiency is improved, and the smooth proceeding of splicing work is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mine ventilation, in particular to a continuous connection air duct for a coal mine heading face without stopping the air supply. Background Technique

[0002] A coal mine refers to an area where humans mine coal resources in a coal-rich mining area, generally divided into underground coal mines and surface coal mines. Underground coal mine: When the coal seam is far from the surface, a coal mine that excavates coal by driving tunnels underground; Surface coal mine: When the distance between the coal seam and the surface is very close, a coal mine that directly strips the surface soil layer to excavate coal, which is applicable to the situation where the coal seam occurrence is shallow and the coal quality is good.

[0003] When excavating coal by driving tunnels underground, in order to prevent a large amount of gas in the mine from causing accidents such as poisoning, fire and explosion; Therefore, in order to mine coal safely, it is often necessary to set up an air duct to ventilate the mine, so as to input a large amount of fresh air and dilute and discharge harmful gases.

[0004] However, in the above-mentioned prior art, the existing air ducts are connected by screw threads, resulting in a cumbersome connection of the air ducts, which is not convenient for quick installation and disassembly at the docking place, thus affecting the smooth progress of the connection work. Content of the Utility Model

[0005] The purpose of the utility model is to provide a continuous connection air duct for a coal mine heading face without stopping the air supply, which solves the problem that in the prior art, the existing air ducts are connected by screw threads, resulting in a cumbersome connection of the air ducts, which is not convenient for quick installation and disassembly at the docking place, thus affecting the smooth progress of the connection work.

[0006] To achieve the above purpose, the utility model provides a continuous connection air duct for a coal mine heading face without stopping the air supply, including an air duct and a docking component. The docking component includes a housing, a limiting rod, a spring, a ring and an L-shaped plate. The L-shaped plate has a limiting hole. The housing is fixedly connected to the upper right end of the air duct, the L-shaped plate is fixedly connected to the upper left end of the air duct, one end of the limiting rod penetrates through the housing and is adapted to the limiting hole, the ring is fixedly sleeved on the limiting rod and is located inside the housing, and both ends of the spring are fixedly connected to the ring and the inner wall of the housing respectively.

[0007] Wherein, the left end of the air duct has an insertion ring, and the right end of the air duct has an annular groove, and the insertion ring is adapted to the annular groove.

[0008] Wherein, the docking component further includes a guide rail and a slider. The guide rail is fixedly connected to the inner wall of the housing, one end of the slider is slidably adapted to the guide rail, and the other end of the slider is fixedly connected to the limiting rod.

[0009] Among them, the non-stop wind connection wind duct of the coal mine excavation working face also includes a sealing ring, and the sealing ring is arranged inside the wind duct.

[0010] The right end of the wind tube is also provided with a groove, the front end of the insert ring is provided with a protrusion, the groove is communicated with the annular groove, and the protrusion is adapted to the groove.

[0011] The utility model relates to a continuous wind tube for a coal mine excavation working face without stopping the wind, wherein the L-shaped plate has a limiting hole, the shell is fixedly connected to the upper right end of the wind tube, the L-shaped plate is fixedly connected to the upper left end of the wind tube, one end of the limiting rod passes through the shell and is adapted to the limiting hole, the circular ring is fixedly sleeved on the limiting rod and is located inside the shell, and the two ends of the spring are respectively fixedly connected to the circular ring and the inner wall of the shell. After the limiting rod of the current device is pulled, and the wind tube of the next device is docked with the wind tube of the current device, the limiting rod is loosened, and under the elastic force of the spring, the limiting rod is adapted to the limiting hole, thereby limiting the L-shaped plate, and then the current device is fixed to the next device, so that the docking installation is completed. When disassembly is required, only the limiting rod needs to be pulled to disengage the limiting rod from the limiting hole, so that the wind tube can be easily disassembled, thereby the device can be quickly installed and disassembled, the work efficiency is improved, and the smooth progress of the continuous work will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is an overall structural schematic diagram of the utility model.

[0014] Figure 2 It is an overall front view of the utility model.

[0015] Figure 3 The utility model Figure 2 AA line section view.

[0016] Figure 4 It is the overall right view of the utility model.

[0017] 101-air cylinder, 102-sealing ring, 103-housing, 104-limiting rod, 105-spring, 106-circular ring, 107-L-shaped plate, 108-guide rail, 109-slider, 110-limiting hole, 111-insertion ring, 112-annular groove, 113-groove, 114-bump. DETAILED DESCRIPTION

[0018] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0019] Please refer to Figures 1 to 4 , wherein, Figure 1 is a schematic structural view of the whole of the present utility model, Figure 2 is a front view of the whole of the present utility model, Figure 3 is the Figure 2 cross-sectional view taken along line A-A of the present utility model, Figure 4 is a right view of the whole of the present utility model.

[0020] The present utility model provides a continuous air duct connection without stopping the air supply at a coal mine heading face, which includes an air duct 101, a docking assembly and a sealing ring 102. The docking assembly includes a housing 103, a limiting rod 104, a spring 105, a circular ring 106, an L-shaped plate 107, a guide rail 108 and a slider 109. The L-shaped plate 107 has a limiting hole 110. The left end of the air duct 101 has an insertion ring 111. The right end of the air duct 101 has an annular groove 112. The right end of the air duct 101 also has a groove 113. The front end of the insertion ring 111 has a convex block 114.

[0021] According to the present specific implementation mode, the limiting rod 104 of the current device is pulled, and then the air duct 101 of the next device is docked with the air duct 101 of the current device, and then the limiting rod 104 is released. Under the elastic force of the spring 105, the limiting rod 104 is adapted to the limiting hole 110, so as to limit the L-shaped plate 107, and then the current device and the next device are fixed to complete the docking installation. When disassembly is required, it is only necessary to pull the limiting rod 104 to disengage the limiting rod 104 from the limiting hole 110, so as to facilitate the disassembly of the air duct 101. As a result, the device can be quickly installed and disassembled, which improves the work efficiency and will not affect the smooth progress of the subsequent connection work. When the air duct 101 is docked, the current air duct 101 is docked with the current air duct 101 through the cooperation of the plug ring 111 and the annular groove 112. When the wind duct 101 and the next wind duct 101 are docked, they can quickly be in the same horizontal plane, which improves the docking efficiency. When the limit rod 104 is moving, the cooperation between the slider 109 and the guide rail 108 makes the movement of the limit rod 104 more stable, reduces the shaking during movement, and enables the limit rod 104 to better adapt to the limit hole 110. When the wind duct 101 is docked, the sealing ring 102 contacts the docking point, thereby improving the sealing of the wind duct 101 after docking and preventing air from flowing out from the gap after docking. When docking, the cooperation between the groove 113 and the protrusion 114 makes the wind duct 101 of the next device of the wind duct 101 of the current device be at the same angle, thereby facilitating the adaptation of the limit rod 104 of the current device to the limit hole 110 of the next device.

[0022] Among them, the L-shaped plate 107 has a limiting hole 110, the outer shell 103 is fixedly connected to the upper right end of the wind tube 101, the L-shaped plate 107 is fixedly connected to the upper left end of the wind tube 101, one end of the limiting rod 104 passes through the outer shell 103 and is adapted to the limiting hole 110, the ring 106 is fixedly sleeved on the limiting rod 104 and is located inside the outer shell 103, and the two ends of the spring 105 are respectively fixedly connected to the ring 106 and the inner wall of the outer shell 103. Pull the limit rod 104 of the current device, then dock the air duct 101 of the next device with the air duct 101 of the current device, loosen the limit rod 104, and under the elastic force of the spring 105, the limit rod 104 is adapted to the limit hole 110, thereby limiting the L-shaped plate 107, and then fixing the current device and the next device to complete the docking installation. When disassembly is required, it is only necessary to pull the limit rod 104 to disengage the limit rod 104 from the limit hole 110, thereby facilitating the disassembly of the air duct 101. The device can be quickly installed and disassembled, thereby improving work efficiency and will not affect the smooth progress of the subsequent work.

[0023] Secondly, the left end of the wind tube 101 has an insert ring 111, and the right end of the wind tube 101 has an annular groove 112, and the insert ring 111 is adapted to the annular groove 112. When the wind tubes 101 are docked, the insert ring 111 cooperates with the annular groove 112, so that the current wind tube 101 and the next wind tube 101 can be quickly placed at the same horizontal plane when docking, thereby improving docking efficiency.

[0024] At the same time, the guide rail 108 is fixedly connected to the inner wall of the housing 103, one end of the slider 109 is slidably adapted to the guide rail 108, and the other end of the slider 109 is fixedly connected to the limit rod 104. When the limit rod 104 moves, the slider 109 cooperates with the guide rail 108 to make the limit rod 104 move more stably, reduce the shaking during movement, and make the limit rod 104 better adapted to the limit hole 110.

[0025] In addition, the sealing ring 102 is arranged inside the air duct 101. When the air ducts 101 are docked, the sealing ring 102 contacts the docking position, thereby improving the sealing performance of the air duct 101 after docking and preventing airflow from flowing out of the gap between the docking parts.

[0026] In addition, the right end of the wind tube 101 also has a groove 113, and the front end of the insert ring 111 has a protrusion 114, the groove 113 is connected to the annular groove 112, and the protrusion 114 is adapted to the groove 113. When docking, the wind tube 101 of the current device and the wind tube 101 of the next device can be at the same angle through the cooperation of the groove 113 and the protrusion 114, so that the limiting rod 104 of the current device is adapted to the limiting hole 110 of the next device.

[0027] When using the utility model to connect the wind tube 101 without stopping the wind at the coal mine excavation working face, pull the limit rod 104 of the current device, and then after the wind tube 101 of the next device is docked with the wind tube 101 of the current device, release the limit rod 104, and under the elastic force of the spring 105, the limit rod 104 is adapted to the limit hole 110, so as to limit the L-shaped plate 107, and then the current device and the next device are fixed to complete the docking installation. When disassembly is required, it is only necessary to pull the limit rod 104 to disengage the limit rod 104 from the limit hole 110, so as to facilitate the disassembly of the wind tube 101. As a result, the device can be quickly installed and disassembled, which improves work efficiency and will not affect the smooth progress of the connection work. When the wind tube 101 is docked, the plug ring 111 and the annular groove 112 are connected. The cooperation between the current wind tube 101 and the next wind tube 101 can quickly be in the same horizontal plane when docking, thereby improving the docking efficiency. When the limit rod 104 is moving, the cooperation between the slider 109 and the guide rail 108 makes the movement of the limit rod 104 more stable, reducing the shaking during movement, so that the limit rod 104 can better adapt to the limit hole 110. When the wind tubes 101 are docked, the sealing ring 102 contacts the docking position, thereby improving the sealing of the wind tube 101 after docking, and preventing air from flowing out from the gap after docking. When docking, the cooperation between the groove 113 and the protrusion 114 can make the wind tube 101 of the next device of the current device be at the same angle, thereby facilitating the adaptation of the limit rod 104 of the current device to the limit hole 110 of the next device.

[0028] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A non-stop air flow connecting wind pipe at a coal mine excavation working face, characterized in that: Includes a blower and docking assembly; The docking assembly includes an outer shell, a limiting rod, a spring, a circular ring and an L-shaped plate, the L-shaped plate having a limiting hole, the outer shell is fixedly connected to the upper right end of the air duct, the L-shaped plate is fixedly connected to the upper left end of the air duct, one end of the limiting rod passes through the outer shell and is adapted to the limiting hole, the circular ring is fixedly sleeved on the limiting rod and is located inside the outer shell, and the two ends of the spring are fixedly connected to the circular ring and the inner wall of the outer shell respectively.

2. The non-stop air flow connecting wind pipe at the coal mine excavation working face as claimed in claim 1, characterized in that: The left end of the wind tube is provided with an insert ring, and the right end of the wind tube is provided with an annular groove, and the insert ring is adapted to the annular groove.

3. The non-stop air flow connecting wind tube of the coal mine excavation working face as claimed in claim 2, characterized in that: The docking assembly further comprises a guide rail and a slider, wherein the guide rail is fixedly connected to the inner wall of the shell, one end of the slider is slidably fitted to the guide rail, and the other end of the slider is fixedly connected to the limit rod.

4. The non-stop air flow connecting wind pipe at the coal mine excavation working face as claimed in claim 3, characterized in that: The non-stop air connection wind duct for the coal mine excavation working face also includes a sealing ring, and the sealing ring is arranged inside the wind duct.

5. The non-stop air flow connecting wind pipe at the coal mine excavation working face as claimed in claim 4, characterized in that: The right end of the wind tube is also provided with a groove, the front end of the insert ring is provided with a convex block, the groove is communicated with the annular groove, and the convex block is adapted to the groove.

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