Steel arch support structure for mining

Abstract

The utility model discloses a mining steel arch support structure, which is characterized in that n-shaped reinforcing frames are mounted in a first steel arch and a second steel arch, adjusting baffle seats are arranged on the inner sides of the first steel arch and the second steel arch, and reinforcing rods are connected between the reinforcing frames in the first steel arch and the second steel arch; according to the utility model, the reinforcing frame is arranged, so that the steel arch can be reinforced, enough supporting resistance is provided, and the steel arch is prevented from being easily subjected to instability damage in the supporting process; meanwhile, an adjusting baffle seat is arranged, sliding baffles can be driven to face inwards through a transmission connecting seat, the sliding baffles on the two sides are attached and sealed, gravel on the top of the mine hole is prevented from hitting workers when falling, and the protection effect is achieved; the reinforcing rods are connected between the reinforcing frames, the reinforcing rods are provided with the air inlets and the draught fans, and when high-temperature, humid or poisonous and harmful gas exists in the mine hole, the draught fans can be used for conducting air exhaust, air exchange and underground climate adjustment on the interior of the mine hole, and a good working environment is created.

Description

Technical Field

[0001] The utility model relates to the technical field of steel arch frames for mining, in particular to a steel arch frame supporting structure for mining. Background Art

[0002] Steel arch support is a common tunnel construction method. It has the advantages of high rigidity and convenient construction. It is widely used in hydraulic tunnel support. Mining caves also need to rely on steel arch support to maintain their state. The steel arch is used to support the cave wall to avoid internal collapse and ensure the safety of the mining process. It acts on the mining support structure to ensure safe mining operations under support conditions.

[0003] However, steel arch frames are prone to instability and damage during the support process, which poses a considerable safety hazard to mine construction. At the same time, the steel arch frames of mines are usually installed at a short distance, and there are no other protective structures between the steel arch frames. If sand and gravel fall from the top of the mine, it is inevitable that it will hit the workers, which is dangerous and quite troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a steel arch support structure for mining, so as to solve the problem proposed in the above-mentioned background technology that the steel arch is prone to instability and damage during the support process, which poses a considerable safety hazard to mine construction. At the same time, the steel arches of the mine are usually installed at a short distance, and there are no other protective structures between the steel arches. If sand and gravel fall from the top of the mine, it is inevitable that the workers will be hit, which poses a certain danger.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel arch support structure for mining, comprising a steel arch frame one and a steel arch frame two, wherein the steel arch frame one and the steel arch frame two are both installed with a "door"-shaped reinforcement frame, and the inner sides of the steel arch frame one and the steel arch frame two are both provided with an adjustable baffle seat, and after the adjustable baffle seat is unfolded, the two ends are fitted to form a sealing structure, the adjustable baffle seat comprises a sliding baffle and a transmission connecting seat, and the transmission connecting seat is connected to the bottom of the sliding baffle, and a reinforcement rod is connected between the reinforcement frames inside the steel arch frame one and the steel arch frame two, and the interior of the reinforcement rod is arranged as a hollow structure and an air inlet is opened.

[0006] Preferably, the top and both sides of the reinforcement frame installed in the steel arch frame 1 and the steel arch frame 2 are fixedly connected to the corresponding steel arch frame 1 and the steel arch frame 2 through reinforcement steel respectively.

[0007] Preferably, the transmission connection seat includes a driving motor and a transmission screw, and the driving motor and the transmission screw are meshed and transmission-connected. A threaded connection seat matching the transmission screw is provided at the bottom of the sliding baffle and is threadedly connected to the transmission screw through the threaded connection seat.

[0008] Preferably, both ends of the transmission connection seat are fixedly connected to the surfaces of the reinforcement frames installed inside the first steel arch and the second steel arch, and a limiting long groove is provided on the top surface of the transmission connection seat.

[0009] Preferably, a fan is provided at the top of the reinforcement frame installed inside the second steel arch, and the fan is interconnected with the air inlet.

[0010] Preferably, the top end of the sliding baffle is lower than the top ends of the first steel arch and the second steel arch.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. A reinforcement frame is provided, which can reinforce the steel arch, provide sufficient support resistance, and prevent the steel arch from being prone to instability failure during the support process; at the same time, an adjustable baffle seat is provided, which can drive the sliding baffle inward through the transmission connection seat, so that the two sliding baffles are fitted and sealed, preventing the sand and gravel falling from the top of the mine tunnel from hitting the staff, and playing a protective role;

[0013] 2. Reinforcement rods are connected between the reinforcement frames. The reinforcement rods are provided with air inlets and fans. When there are high temperatures, humidity, or toxic and harmful gases inside the mine tunnel, the fans can be used to exhaust and ventilate the mine tunnel, adjust the underground climate, and create a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the connection structure of the first steel arch and the second steel arch of the present utility model;

[0015] Figure 2 is a front view structural schematic diagram of the steel arch of the present utility model;

[0016] Figure 3 is an unfolded structural schematic diagram of the adjustable baffle seat of the first steel arch and the second steel arch of the present utility model;

[0017] Figure 4 is a schematic diagram of the connection structure of the steel arch and the adjustable baffle seat of the present utility model;

[0018] Figure 5 is a schematic diagram of the internal structure of the adjustable baffle seat of the present utility model;

[0019] Figure 6 is a schematic diagram of the structure of the reinforcement rod of the present utility model;

[0020] Figure 7 is an enlarged structural schematic diagram of part A of the present utility model.

[0021] In the figure: steel arch frame 1-1, steel arch frame 2-2, reinforcement frame-3, adjustment baffle seat-4, reinforcement rod-31, fan-32, exhaust port-33, sliding baffle-41, transmission connecting seat-42, air inlet-311, drive motor-421, transmission screw rod-422, and limit long slot-423. DETAILED DESCRIPTION

[0022] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0023] like Figure 1-2 As shown, in the present embodiment, a steel arch support structure for mining comprises a steel arch 1 and a steel arch 2, wherein a "door"-shaped reinforcement frame 3 is installed inside the steel arch 1 and the steel arch 2, and an adjusting baffle seat 4 is arranged inside the steel arch 1 and the steel arch 2, and the two ends of the adjusting baffle seat 4 are fitted to form a sealing structure after being unfolded, and the adjusting baffle seat 4 comprises a sliding baffle 41 and a transmission connection seat 42, and the transmission connection seat 42 is connected to the bottom of the sliding baffle 41, and a reinforcing rod 31 is connected between the reinforcement frames 3 inside the steel arch 1 and the steel arch 2, and the interior of the reinforcement rod 31 is set as a hollow structure and an air inlet 311 is provided, and the top and both sides of the reinforcement frames 3 installed in the steel arch 1 and the steel arch 2 are respectively fixedly connected to the corresponding steel arch 1 and the steel arch 2 by reinforcing steel;

[0024] The above-mentioned "door"-shaped reinforcement frame 3 can reinforce the steel arch frame, provide sufficient support resistance, and prevent the steel arch frame from being easily unstable and damaged during the support process; at the same time, an adjustable baffle seat 4 is provided, which can drive the sliding baffle 41 inward through the transmission connecting seat 42, so that the sliding baffles 41 on both sides fit and seal, preventing sand and gravel on the top of the mine from falling and hitting the workers, thereby playing a protective role.

[0025] like Figures 3-5 As shown, in this embodiment, the transmission connecting seat 42 includes a driving motor 421 and a transmission screw 422, and the driving motor 421 and the transmission screw 422 are meshed and transmission-connected. A threaded connecting seat 411 matching the transmission screw 422 is provided at the bottom of the sliding baffle 41 and is threadedly connected to the transmission screw 422 through the threaded connecting seat 411. Both ends of the transmission connecting seat 42 are fixedly connected to the surface walls of the reinforcement frame 3 installed in the steel arch frame 1 and the steel arch frame 2, and a limiting long groove 423 is provided on the top surface wall of the transmission connecting seat 42. The top of the threaded connecting seat 411 is fixedly connected to the bottom of the sliding baffle 41 through the limiting long groove 423 via a connecting rod matching the limiting long groove 423, and the top of the sliding baffle 41 is lower than the top of the steel arch frame 1 and the top of the steel arch frame 2.

[0026] The above drives the transmission lead screw 422 through the drive motor 421. When the drive motor 421 rotates, it will drive the corresponding threaded connection seat 411 to move left or right following the forward or reverse rotation of the drive motor 421, so as to realize the left and right movement of the sliding baffle 41, thereby blocking the gap without a protection structure between the steel arch frames and preventing the gravel falling from the top of the mine tunnel from hitting the staff, playing a protective role. The top of the sliding baffle 41 is lower than the tops of the first steel arch frame 1 and the second steel arch frame 2, which is convenient for adjusting the position of the sliding baffle 41.

[0027] As Figures 6-7 shown, in this embodiment, a fan 32 is provided at the top of the reinforcement frame 3 installed inside the second steel arch frame 2, and the fan 32 is interconnected with the air inlet 311; the above can extract air through the fan 32, and can extract the gas in the mine tunnel through the air inlet 311 and then discharge it through the air outlet of the fan 32. The air outlet can be connected to a pipeline. Thus, when there are high temperature, humidity or toxic and harmful gases inside the mine tunnel, the fan 32 can extract air from the mine tunnel, exchange air, adjust the underground climate and create a good working environment.

[0028] Working principle: A "door"-shaped reinforcement frame 3 is provided, which can reinforce the steel arch frame and provide sufficient support resistance to prevent the steel arch frame from being prone to instability failure during the support process; at the same time, an adjustment baffle seat 4 is provided. The drive motor 421 drives the transmission lead screw 422 to drive. When the drive motor 421 rotates, it will drive the corresponding threaded connection seat 411 to move left or right following the forward or reverse rotation of the drive motor 421, so as to realize the left and right movement of the sliding baffle 41, block the gap without a protection structure between the steel arch frames, and prevent the gravel falling from the top of the mine tunnel from hitting the staff, playing a protective role; on the other hand, air can be extracted through the fan 32, and the gas in the mine tunnel can be extracted through the air inlet 311 and then discharged through the air outlet of the fan 32. The air outlet can be connected to a pipeline. Thus, when there are high temperature, humidity or toxic and harmful gases inside the mine tunnel, the fan 32 can extract air from the mine tunnel, exchange air, adjust the underground climate and create a good working environment.

[0029] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steel arch support structure for mining, comprising a first steel arch (1) and a second steel arch (2), characterized in that: A "door"-shaped reinforcement frame (3) is installed inside the steel arch frame 1 (1) and the steel arch frame 2 (2). An adjustment baffle seat (4) is arranged inside the steel arch frame 1 (1) and the steel arch frame 2 (2). After the adjustment baffle seat (4) is unfolded, both ends of the adjustment baffle seat (4) are fitted together to form a sealing structure. The adjustment baffle seat (4) includes a sliding baffle (41) and a transmission connection seat (42). The transmission connection seat (42) is connected to the bottom of the sliding baffle (41). A reinforcement rod (31) is connected between the reinforcement frames (3) inside the steel arch frame 1 (1) and the steel arch frame 2 (2). The interior of the reinforcement rod (31) is arranged as a hollow structure and an air inlet (311) is provided.

2. The steel arch support structure for mining according to claim 1, wherein: The top and both sides of the reinforcement frame (3) installed in the steel arch frame one (1) and the steel arch frame two (2) are fixedly connected to the corresponding steel arch frame one (1) and the steel arch frame two (2) through the reinforcement steel.

3. The steel arch support structure for mining according to claim 1, characterized in that: The transmission connection seat (42) comprises a driving motor (421) and a transmission screw (422), wherein the driving motor (421) and the transmission screw (422) are meshed and transmission-connected, and a threaded connection seat (411) matching with the transmission screw (422) is provided at the bottom of the sliding baffle (41) and is threadedly connected to the transmission screw (422) via the threaded connection seat (411).

4. The steel arch support structure for mining according to claim 1, wherein: The two ends of the transmission connection seat (42) are fixedly connected to the surface wall of the reinforcement frame (3) installed in the steel arch frame 1 (1) and the steel arch frame 2 (2), and a limited long groove (423) is provided on the top surface wall of the transmission connection seat (42).

5. The steel arch support structure for mining according to claim 1, characterized in that: A fan (32) is arranged on the top of the reinforcement frame (3) installed inside the second steel arch frame (2), and the fan (32) is communicated with the air inlet (311).

6. The steel arch support structure for mining according to claim 1, characterized in that: The top end of the sliding baffle (41) is lower than the top ends of the first steel arch frame (1) and the second steel arch frame (2).

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