Metal arch supporting and reinforcing connecting device convenient to disassemble and assemble

Abstract

The utility model relates to the field of mine engineering, in particular to a metal arch supporting, reinforcing and connecting device convenient to disassemble and assemble. The device comprises an arch frame, a special-shaped fixing clamping frame, a hoop, a threaded pull rod, a nut and a gasket. The number of the special-shaped fixing clamping frames is two, the two special-shaped fixing clamping frames are connected to a frame body of the arch frame in a surrounding and sleeving mode, the at least two hoops are connected to one ends of the two special-shaped fixing clamping frames in a sleeving mode respectively, one end of the threaded pull rod is arranged on the two special-shaped fixing clamping frames in a penetrating mode, and the threaded pull rod is located on one sides of the hoops. The nut is located on the other side of the hoop, and the gasket is located between the nut and the hoop.

Description

Technical Field

[0001] The utility model relates to the field of mining engineering, in particular to a metal arch support reinforcement connection device which is convenient for assembly and disassembly. Background Art

[0002] Arch support is a support structure composed of steel components. It is used to resist the pressure of the surrounding rock of the tunnel and prevent the surrounding rock from being deformed too much and damaged. According to the direction and size of the ground pressure, the tunnel section of the metal support is used. The arched retractable support composed of U-shaped steel is mostly used in tunnels with soft surrounding rocks, large tunnel sections and strong mining disturbances. The support spacing of the metal support is generally 0.5 to 1.2m. In order to ensure the stability of the support, a tie rod should be installed between the supports. In order to prevent the surrounding rock between the frames from breaking and falling off, a back plate should be installed on the outside of the support and it should be densely filled. The single metal support itself has excellent force-bearing performance and can withstand large pressure, tension, bending, torsion, etc.

[0003] However, the integrity of metal arch frames is generally poor. The impact of blasting and falling surrounding rocks often causes the arch frames to tilt and then fall. In order to prevent falling, welding reinforcement was used as the overall connection method of the arch frame. However, the welding points of the arch frames are affected by the contact surface, the welding points have a limited range and general strength, and welding is a hot work. Welding in the return air lane and main lane has a wide impact range. There is a process handover between the arch frame support workers and the welders, and the welding often cannot follow up to the front arch frame, which cannot ensure the timely and integrated connection of the arch frame. At the same time, welding fixation cannot be used in the sprinkler and main ventilation lanes. Effective guarantees cannot be obtained from safety to support quality and construction efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a metal arch support reinforcement connection device which is easy to assemble and disassemble, and can effectively solve the problem that the overall connection method of welding reinforcement mentioned in the background technology cannot be effectively guaranteed from safety to support quality to construction efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A metal arch support reinforcement connection device that is easy to assemble and disassemble, comprising:

[0007] Arch frame;

[0008] Special-shaped fixed brackets, two of which are provided, and the two special-shaped fixed brackets are sleeved around the frame body of the arch frame;

[0009] A clamp, at least two of which are respectively sleeved on one end of the two special-shaped fixed brackets;

[0010] A threaded pull rod, one end of which is passed through the two special-shaped fixed brackets, and the threaded pull rod is located on one side of the clamp;

[0011] A nut, the nut being located on the other side of the clamp;

[0012] A gasket is located between the nut and the clamp.

[0013] The special-shaped fixed bracket further includes:

[0014] A bent end, the bent end being located at one side of the arch;

[0015] A transition interface, the transition interface is connected to a port at the end of the bent end, and the transition interface is sleeved at a turning angle of the arch;

[0016] A connecting extension end, the connecting extension end corresponds to two ports at the end of the bent end, and the two connecting extension ends are parallelly located on one side of the arch frame;

[0017] External thread, the external thread is arranged on the connecting extension end, and the nut is threadedly connected to the external thread.

[0018] The two special-shaped fixing brackets are symmetrically placed around the arch frame.

[0019] The clamp is located on one side of the arch.

[0020] The threaded pull rod is arranged through the interval between the two connecting extension ends.

[0021] The bent end is U-shaped.

[0022] Compared with the prior art, the utility model has the following beneficial effects: the utility model utilizes the end of the special-shaped fixing bracket, and uses clamps, gaskets, and bolts to firmly squeeze the transverse reinforcement on the arch frame for fixing, thereby improving the connection strength of the arch frame. The simple assembly feature reduces the handover of process and improves the efficiency of construction. The quick installation ensures the timeliness of the overall connection of the arch frame. The extrusion and fixing method avoids the safety risks such as electric shock and ventilation caused by the implementation of hot fire welding operations. At the same time, the enhancement of the overall strength reduces the tilting and sinking caused by falling or blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0024] Figure 1 It is a schematic diagram of the overall appearance of the utility model.

[0025] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0026] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0027] Numbers in the figure: 1, arch frame; 2, special-shaped fixing bracket; 3, clamp; 4, threaded pull rod; 5, nut; 6, gasket; 21, bent end; 22, transition interface; 23, connecting extension end; 24, external thread. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-3 As shown, a metal arch support reinforcement connection device that is easy to assemble and disassemble includes: an arch 1, a special-shaped fixed bracket 2, a clamp 3, a threaded pull rod 4, a nut 5, and a gasket 6. Two special-shaped fixed brackets 2 are provided, and the two special-shaped fixed brackets 2 are surrounded and sleeved on the frame body of the arch 1; the U-shaped bent end 21 is used to closely fit the shape of the arch 1 to ensure that the bracket can be firmly fixed on the arch 1, and at the same time, the transition interface 22 is adapted to fit the turning angle of the arch 1 to enhance the overall stability. The design of connecting the extension end 23 and the bent end 21 not only ensures the fit between the bracket and the arch 1, but also provides a channel for the subsequent threaded pull rod 4 to pass through. The two special-shaped fixing brackets 2 are symmetrically placed around the arch frame 1, and at least two clamps 3 are respectively sleeved on one end of the two special-shaped fixing brackets 2; the clamp 3 is located on one side of the arch frame 1, one end of the threaded pull rod 4 is passed through the two special-shaped fixing brackets 2, and the threaded pull rod 4 is located on one side of the clamp 3, the nut 5 is located on the other side of the clamp 3, the gasket 6 is located between the nut 5 and the clamp 3, and the bent end 21 is located on one side of the arch frame 1.

[0031] In this embodiment, Figure 2 As shown, the combination of the clamp 3 and the threaded rod 4 is to reinforce the arch frame 1 by inserting the threaded rod 4 between the connecting extension ends 23 of the special-shaped fixed bracket 2 and then tightening the nut 5. The design of the clamp 3 ensures that the threaded rod 4 is fixed on the arch frame 1, and the tension of the threaded rod 4 is transmitted to the arch frame 1 through the clamp 3, thereby enhancing the connection strength between the arch frames 1. The special-shaped fixed bracket 2 includes: the bending end 21 is U-shaped, the transition interface 22 is connected to the port at the end of the bending end 21, and the transition interface 22 is sleeved at a turning angle of the arch frame 1, the connecting extension end 23 corresponds to the two ports at the end of the bending end 21, and the two connecting extension ends 23 are parallel and located on one side of the arch frame 1; the threaded rod 4 is inserted in the interval between the two connecting extension ends 23, the external thread 24 is arranged on the connecting extension end 23, and the nut 5 is threadedly connected to the external thread 24. The gasket 6 is located between the nut 5 and the clamp 3. Its function is to increase the contact area and disperse the pressure of the nut 5 on the clamp 3 to avoid damage to the clamp 3 or the arch 1 due to excessive local force. At the same time, the gasket 6 can also improve the stability of the connection and prevent the nut 5 from loosening.

[0032] Preferably, every 3 to 4 arch frames 1 can complete the overall fixation. The purpose of the entire design is to improve the stability and overall connectivity of the metal arch frame 1 in a complex mine environment, reduce the tilt or tipping of the arch frame 1 caused by blasting impact and surrounding rock fall, and avoid the safety risks and construction efficiency problems caused by welding. Through the combination of special-shaped fixing brackets 2, clamps 3, threaded pull rods 4 and gaskets 6, the characteristics of rapid assembly, high-strength connection, convenient disassembly and adaptation to complex terrain are achieved, which improves the flexibility and safety of the arch frame 1 operation.

[0033] It should be noted that the utility model is a metal arch support reinforcement connection device that is easy to assemble and disassemble. When in use, when the arch 1 is connected, two special shaped clips are used to hang the back of the arch 1, and the threaded rod 4 is inserted into the gap between the ends of the two connecting extension ends 23. A tray is used to be sleeved on the ends of the two connecting extension ends 23, and after the gasket 6 is sleeved on the ends of the connecting extension ends 23, the nut 5 is tightened to squeeze the gasket 6 to fix it. The gasket 6 squeezes the clamp 3, and the clamp 3 squeezes the threaded rod 4. The clamp 3 and the threaded rod 4 are fixed, and the clamp 3 and the threaded rod 4 are fixed so that the shaped fixed bracket 2 cannot move. The special-shaped fixed bracket 2 is fixed on the arch frame 1. In this way, 5 fixed transverse ribs are set for every 3 to 4 arch frames 1 to complete the overall fixation. The arch frame 1 operators can complete the assembly by assembling it. It is convenient and has high connection strength. It is not restricted by the complex terrain in the mine. If the threaded pull rod 4 needs to be removed or adjusted, it only needs to loosen the nut 5. It has strong adaptability.

[0034] The embodiments of the present invention have been shown and described. It will be understood 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. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal arch support reinforcement connection device that is easy to assemble and disassemble, characterized in that: include: Arch (1); A special-shaped fixed bracket (2), wherein two special-shaped fixed brackets (2) are provided, and the two special-shaped fixed brackets (2) are sleeved around the frame body of the arch frame (1); A clamp (3), wherein at least two of the clamps (3) are respectively sleeved on one end of the two special-shaped fixed brackets (2); A threaded pull rod (4), one end of which is passed through the two special-shaped fixed brackets (2), and the threaded pull rod (4) is located on one side of the clamp (3); a nut (5), wherein the nut (5) is located on the other side of the clamp (3); A gasket (6), wherein the gasket (6) is located between the nut (5) and the clamp (3).

2. A metal arch support reinforcement connection device that is easy to assemble and disassemble according to claim 1, characterized in that: The special-shaped fixed bracket (2) further comprises: A bent end (21), the bent end (21) being located on one side of the arch frame (1); A transition interface (22), the transition interface (22) is connected to a port at the end of the bent end (21), and the transition interface (22) is sleeved at a turning angle of the arch frame (1); A connecting extension end (23), the connecting extension end (23) corresponds to two ports at the end of the bent end (21), and the two connecting extension ends (23) are located in parallel on one side of the arch frame (1); An external thread (24), wherein the external thread (24) is arranged on the connecting extension end (23), and the nut (5) is threadedly connected to the external thread (24).

3. The metal arch support reinforcement connection device that is easy to assemble and disassemble according to claim 1 is characterized in that: The two special-shaped fixed brackets (2) are symmetrically placed around the arch frame (1).

4. The metal arch support reinforcement connection device with convenient assembly and disassembly according to claim 2 is characterized in that: The clamp (3) is located on one side of the arch frame (1).

5. The metal arch support reinforcement connection device that is easy to assemble and disassemble according to claim 2 is characterized in that: The threaded pull rod (4) is inserted into the interval between the two connecting extension ends (23).

6. The metal arch support reinforcement connection device that is easy to assemble and disassemble according to claim 2 is characterized in that: The bent end (21) is U-shaped.

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