Portable net hanging device for supporting top of working face in coal mine production

Abstract

The utility model discloses a portable net hanging device for supporting the top of a working face in coal mine production, which comprises a net hanging support leg, a net hanging support leg, a net hanging support rod, a net hanging support rod, a net hanging support rod and a net hanging support rod, the net hanging frame is horizontally arranged and located on the upper sides of the net hanging supporting legs, the center position of the net hanging frame is fixed to the upper ends of the net hanging supporting legs, and the net hanging frame is used for bearing a roof protection net needed when the working face is supported, so that the roof protection net abuts against the top of a roadway to be fixed; the net hanging frame can be used for placing a top protecting net, and can move up and down through the net hanging supporting legs, so that workers are thoroughly prevented from standing on the frame for construction, the working danger is reduced, the working efficiency is improved, and the net hanging operation can be completed by only two persons.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine production, in particular to a portable net hanging device for supporting the top of a working face in coal mine production. Background Art

[0002] The working face roof support should generally use a shielding hydraulic support when supporting the broken roof. In the specific working face construction process, corresponding supporting measures should also be implemented, namely, the pressure-wiping top moving frame and the laying of metal mesh, etc. Only in this way can the most ideal support effect be achieved. Among them, the laying of the metal mesh is very critical. The strike beam can be combined with the laying of the metal mesh to optimize the coal wall roof control performance, and can also ensure the stability of the support movement. Under the influence of the metal mesh cover, it can move very smoothly.

[0003] However, in the prior art, 2 to 4 people are needed to construct the roof protection net when supporting the working face, and a ladder needs to be set up because the roof is high. It is dangerous for people to work on the ladder, which may cause people to fall and get injured. In addition, the progress of working on the ladder is slow and the efficiency is low, which affects production. Utility Model Content

[0004] The utility model aims to provide a portable hanging net device for supporting the top of the working face in coal mine production, so as to solve the problems in the prior art of complicated construction of the top protection net when supporting the working face, large amount of manpower, high risk and low efficiency.

[0005] The utility model adopts the following technical scheme: a portable net hanging device for supporting the top of the working face in coal mine production, comprising:

[0006] The hanging net support legs are arranged vertically, with their lower ends resting against the bottom of the tunnel and their upper ends arranged close to the top of the tunnel;

[0007] The net frame is horizontally arranged and located on the upper side of the net support legs, and its center position is fixed on the upper end of the net support legs. It is used to carry the top net required for working face support, and then fix the top net against the top of the tunnel;

[0008] The hanging grid includes:

[0009] The first net hanging rod is horizontally arranged, and the middle part thereof is fixedly connected to the upper end of the net hanging support leg;

[0010] The second net hanging rod is horizontally arranged and cross-arranged with the first net hanging rod, and the middle part thereof is fixedly connected to the upper end of the net hanging support leg;

[0011] The mesh frame is horizontally arranged in a square or rectangular shape and is sleeved on the periphery of the first mesh rod and the second mesh rod. The mesh frame is formed by four connecting rods connected end to end in sequence. The two ends of the first mesh rod are respectively fixedly connected to the two diagonals of the mesh frame, and the two ends of the second mesh rod are respectively fixedly connected to the other two diagonals of the mesh frame, and cooperate with each other to form a mesh frame.

[0012] Furthermore, the net hanging support legs include, from top to bottom:

[0013] The upper net hanging support rod is arranged vertically, and the upper end thereof is fixedly connected to the net hanging frame;

[0014] The adjusting tube is arranged vertically, and an adjusting hole is vertically opened along its outer edge, and its inner cavity is used for the lower end of the upper net hanging support rod to extend from top to bottom, and the upper fixing bolt passes through the adjusting hole to fix the lower end of the upper net hanging support rod in the adjusting tube;

[0015] The lower hanging net support rod is vertically arranged, and its upper end is used to extend from bottom to top into the inner cavity of the adjustment tube, and the lower fixing bolt passes through the adjustment hole to fix the upper end of the lower hanging net support rod in the adjustment tube;

[0016] Among them, the adjusting tube is used to adjust the length of the upper net support rod and the lower net support rod extending into the inner cavity of the adjusting tube to adjust the height of the entire net support leg so as to adapt to tunnels of different heights; it is also used to adjust the height of the top guard net when placing it above the net support legs during laying, so that the top guard net is close to the top of the tunnel for easy installation.

[0017] Furthermore, the lower half of the lower net hanging support rod is fixedly connected with three supporting legs, and the three supporting legs are arranged obliquely and are arranged around the axis of the lower net hanging support rod.

[0018] Furthermore, the four corners of the net hanging frame are fixedly connected with guard bars, the four guard bars are vertically arranged, and the lower ends thereof are fixedly connected to the net hanging frame, and the upper ends thereof extend upward to limit the top protection net.

[0019] The beneficial effects of the utility model are:

[0020] The net hanging frame of the utility model can place the top protection net, and can be moved up and down through the net hanging support legs, which completely avoids workers standing on the frame for construction, reduces the danger of work, and improves work efficiency. In addition, the utility model only needs 2 people to operate to complete the net hanging operation;

[0021] The utility model lifts up the roof protection net by setting a hanging net frame and places it close to the top of the tunnel, so that the roof protection net can be easily installed. Only one person needs to adjust the height of the hanging net support legs to hold up the roof protection net, and the other person can install the roof protection net.

[0022] The utility model provides the stop bars so that the four stop bars limit the top protection net, thereby preventing the top protection net from falling due to the tilt of the net hanging frame during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Among them: 10, net hanging support legs; 11, net hanging frame; 12, first net hanging rod; 13, second net hanging rod; 14, net hanging frame; 15, upper net hanging support rod; 16, adjustment tube; 17, lower net hanging support rod; 18, gear rod. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. The "direction" in the present utility model is based on the position of the present utility model in the Figure 1 Description of the trend in the state.

[0027] The utility model discloses a portable net hanging device for supporting the top of the working face in coal mine production. Figure 1 As shown, it includes a net hanging support leg 10 and a net hanging frame 11.

[0028] The mesh support leg 10 is vertically arranged, with the lower end of the mesh support leg 10 against the bottom of the tunnel, and the upper end of the mesh support leg 10 arranged close to the top of the tunnel; the mesh frame 11 is horizontally arranged and located on the upper side of the mesh support leg 10, and the center position of the mesh frame 11 is fixed to the upper end of the mesh support leg 10, and the mesh frame 11 is used to carry the top protection net required for working face support, and then fix the top protection net against the top of the tunnel.

[0029] The net hanging frame 11 includes: a first net hanging rod 12 , a second net hanging rod 13 and a net hanging frame 14 .

[0030] The first net hanging rod 12 is arranged horizontally, and the middle part of the first net hanging rod 12 is fixedly connected to the upper end of the net hanging support leg 10; the second net hanging rod 13 is arranged horizontally, and the second net hanging rod 13 is arranged crosswise with the first net hanging rod 12, and the middle part of the second net hanging rod 13 is fixedly connected to the upper end of the net hanging support leg 10.

[0031] The mesh frame 14 is horizontally arranged, and the mesh frame 14 is square or rectangular. The mesh frame 14 is sleeved on the periphery of the first mesh rod 12 and the second mesh rod 13. The mesh frame 14 is formed by four connecting rods connected end to end in sequence. The two ends of the first mesh rod 12 are respectively fixedly connected to the two diagonals of the mesh frame 14, and the two ends of the second mesh rod 13 are respectively fixedly connected to the other two diagonals of the mesh frame 14, and cooperate with each other to form a mesh frame 11.

[0032] The net hanging support leg 10 comprises, from top to bottom, an upper net hanging support rod 15 , an adjustment pipe 16 and a lower net hanging support rod 17 .

[0033] The upper net-hanging support rod 15 is vertically arranged, and the upper end of the upper net-hanging support rod 15 is fixedly connected to the net-hanging frame 11; the adjusting tube 16 is vertically arranged, and an adjusting hole is vertically penetrated along the outer edge of the adjusting tube 16. The inner cavity of the adjusting tube 16 is used for the lower end of the upper net-hanging support rod 15 to extend from top to bottom, and the upper fixing bolt passes through the adjusting hole to fix the lower end of the upper net-hanging support rod 15 in the adjusting tube 16.

[0034] The lower net support rod 17 is vertically arranged, and the upper end of the lower net support rod 17 is used to extend from bottom to top into the inner cavity of the adjustment tube 16, and the lower fixing bolt passes through the adjustment hole to fix the upper end of the lower net support rod 17 in the adjustment tube 16.

[0035] The adjusting tube 16 is used to adjust the length of the upper net support rod 15 and the lower net support rod 17 extending into the inner cavity of the adjusting tube 16 to adjust the height of the entire net support leg 10 so as to adapt to tunnels of different heights; the adjusting tube 16 is also used to adjust the height of the top guard net when it is placed above the net support leg 10 during laying, so that the top guard net is close to the top of the tunnel for easy installation.

[0036] The lower half of the lower net support rod 17 is fixedly connected with three legs, which are arranged obliquely and are arranged around the axis of the lower net support rod 17. The four corners of the net frame 14 are also fixedly connected with stoppers 18, which are arranged vertically, and the lower ends of which are fixedly connected to the net frame 14, and the upper ends of which extend upward to limit the top net.

[0037] The net hanging frame 11 of the utility model can place the roof net, and can move up and down through the net hanging support legs 10, completely avoiding workers standing on the frame for construction, reducing the danger of work, and improving work efficiency. In addition, the utility model only needs two people to complete the net hanging operation. By setting the gear lever 18, the four gear levers 18 limit the roof net, preventing the roof net from falling due to the tilt of the net hanging frame 11 during installation.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable net hanging device for supporting the top of the working face in coal mine production, characterized in that: include: The net hanging support leg (10) is arranged vertically, with its lower end against the bottom of the tunnel and its upper end close to the top of the tunnel; A mesh frame (11) is horizontally arranged and located on the upper side of the mesh support leg (10), with its center position fixed to the upper end of the mesh support leg (10), and is used to carry the top protection net required for working face support, thereby fixing the top protection net against the top of the tunnel; The hanging grid frame (11) comprises: A first net hanging rod (12) is arranged horizontally, and the middle part thereof is fixedly connected to the upper end of the net hanging support leg (10); A second net hanging rod (13) is horizontally arranged and cross-arranged with the first net hanging rod (12), and the middle part thereof is fixedly connected to the upper end of the net hanging support leg (10); The net hanging frame (14) is horizontally arranged in a square or rectangular shape and is sleeved on the periphery of the first net hanging rod (12) and the second net hanging rod (13). The net hanging frame (14) is formed by four connecting rods connected end to end in sequence. The two ends of the first net hanging rod (12) are respectively fixedly connected to the two diagonal corners of the net hanging frame (14), and the two ends of the second net hanging rod (13) are respectively fixedly connected to the other two diagonal corners of the net hanging frame (14), and they cooperate with each other to form a net hanging frame (11).

2. A portable net hanging device for supporting the top of a working face in coal mine production according to claim 1, characterized in that: The net hanging support leg (10) comprises, from top to bottom: An upper net hanging support rod (15) is arranged vertically, and its upper end is fixedly connected to the net hanging frame (11); The adjusting tube (16) is arranged vertically and has an adjusting hole vertically extending along its outer edge, wherein the lower end of the upper net hanging support rod (15) extends into the inner cavity from top to bottom, and the upper fixing bolt passes through the adjusting hole to fix the lower end of the upper net hanging support rod (15) in the adjusting tube (16); A lower net-hanging support rod (17) is vertically arranged, and its upper end is used to extend from bottom to top into the inner cavity of the adjusting tube (16), and the lower fixing bolt passes through the adjusting hole to fix the upper end of the lower net-hanging support rod (17) in the adjusting tube (16); The adjusting tube (16) is used to adjust the length of the upper net support rod (15) and the lower net support rod (17) extending into the inner cavity of the adjusting tube (16) to adjust the height of the entire net support leg (10) so as to adapt to lanes of different heights; and is also used to adjust the height of the roof protection net when it is placed above the net support leg (10) during laying, so that the roof protection net is close to the top of the lane for easy installation.

3. A portable net hanging device for supporting the top of a working face in coal mine production according to claim 2, characterized in that: The lower half of the lower net-hanging support rod (17) is fixedly connected with three legs, and the three legs are arranged obliquely and are arranged around the axis of the lower net-hanging support rod (17).

4. A portable net hanging device for supporting the top of a working face in coal mine production according to claim 1, characterized in that: The four corners of the net hanging frame (14) are also fixedly connected with stop bars (18); the four stop bars (18) are arranged vertically, and their lower ends are fixedly connected to the net hanging frame (14), and their upper ends extend upward to limit the top protection net.

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