Tunnel or mine roadway safety support and alarm device

Abstract

The invention relates to a tunnel or mine roadway safety supporting and alarming device, and belongs to the technical field of tunnel safety. Comprising two U-shaped supports, the two U-shaped supports are fixedly connected through a plurality of steel wires, a distance measuring instrument is arranged at the upper end of one U-shaped support, a plurality of first induction pieces matched with the distance measuring instrument are arranged on the U-shaped support, steel pipes are arranged at the two ends of the lower portion of the U-shaped support, springs are arranged in the steel pipes, and the springs are connected with the distance measuring instrument. The two ends of the spring are fixedly connected with the upper end and the lower end in the steel pipe through second induction pieces, and an alarm is arranged on the outer side of the U-shaped support. According to the device, the pressure change of the device is detected through the sensing piece II and the spring displacement distance, so that safety accidents such as tunnel collapse and the like are timely and effectively alarmed; the infrared laser range finder is matched with the first induction piece, the inhomogeneity of collapse pressure is considered, and fine displacement at different positions is monitored in real time.

Description

Technical Field

[0001] The invention relates to a tunnel or mine tunnel safety support and alarm device, belonging to the technical field of tunnel safety. Background Art

[0002] At present, my country has a large number of mineral resources. With the deep mining of mineral resources, a large number of tunnels or mine tunnels need to be excavated. In addition, the geological conditions of mines are relatively complex, and there are many uncontrollable factors. Coal mine tunnels generally have the characteristics of instability and poor reliability, which makes the implementation of tunnel support operations more difficult. Due to the high cost of tunnel support and the low recycling rate of tunnel support devices, some companies will even control costs and save the installation of support devices, which will lead to tunnel collapse and easily cause safety accidents. At the same time, during mine excavation, the tunnel may be affected by the vibration of the mining machine, earthquakes or other force majeure factors, causing the tunnel to deform or move, which is easy to cause damage to the tunnel, especially when the rock around the tunnel is loose. If support and protection are not carried out in time, it will cause collapse, rock rupture and other accidents, posing a threat to the life safety of the operators.

[0003] The existing tunnel or mine tunnel safety support devices mostly consider a single support function. When the collapse pressure above the tunnel reaches a certain level, there is no early warning information, and protection preparations cannot be made in time. Secondly, when part of the support device tilts, it will cause a collapse. There is no monitoring and measurement of the tilt displacement, so the support device fails and the alarm work is difficult to carry out. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing tunnel or mine tunnel safety support device has a single function and is unable to provide early warning information while providing support.

[0005] In order to solve the above problems, the present invention provides a tunnel or mine tunnel safety support and alarm device, including two U-shaped supports, the two U-shaped supports are fixedly connected by a plurality of steel wires, a rangefinder is provided at the upper end of one of the U-shaped supports, a plurality of induction sheets 1 matching the rangefinder are provided on the U-shaped support, steel pipes are provided at both ends of the lower side of the U-shaped support, a spring is provided in the steel pipe, both ends of the spring are fixedly connected to the upper and lower ends of the steel pipe through induction sheets 2, and an alarm is provided on the outside of the U-shaped support.

[0006] Further: the spring is a high-strength spring.

[0007] Further: the rangefinder is an infrared laser rangefinder.

[0008] Further: the five induction plates are evenly distributed on the side of the U-shaped support.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] This patent uses the pressure changes on the second sensor piece and the spring displacement distance detection device to promptly and effectively warn of safety accidents such as tunnel collapse; through the infrared laser rangefinder combined with the first sensor piece, taking into account the unevenness of the collapse pressure, the slight displacement occurring at different positions is monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 The present invention is a structure of a tunnel or mine tunnel safety support and alarm device Figure 1 .

[0013] Figure 2 The present invention is a structure of a tunnel or mine tunnel safety support and alarm device Figure 2 .

[0014] Figure 3 The present invention is a cross-sectional view of a steel pipe of a tunnel or mine tunnel safety support and alarm device.

[0015] In the attached figure:

[0016] 1. U-shaped support; 11. Steel wire; 12. Alarm; 2. Distance meter; 21. Sensor piece 1; 3. Steel pipe; 31. Spring; 32. Sensor piece 2. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Combined with Figure 1 , 2The present invention provides a tunnel or mine tunnel safety support and alarm device, including two U-shaped supports 1, the two U-shaped supports 1 are fixedly connected by a plurality of steel wires 11, the steel wires 11 are fixed to the side of the U-shaped support 1 by bolts, an infrared laser rangefinder is provided at the upper end of one U-shaped support 1, a plurality of induction sheets 21 matching the rangefinder 2 are provided on the U-shaped support 1, 5 induction sheets 21 are evenly distributed on the side of the U-shaped support 1, an alarm 12 is provided on the outer side of the U-shaped support 1, the U-shaped support 1 supports the tunnel or mine tunnel, reduces the risk of collapse of the tunnel or mine tunnel, the infrared laser rangefinder measures the position of each induction sheet 21 by laser, and when the induction sheet 21 is displaced, an alarm is given in time by the alarm 12;

[0019] Combined with Figure 1 , 3 Steel pipes 3 are provided at both ends below the U-shaped support 1, and high-strength springs are provided in the steel pipes 3. Both ends of the springs 31 are fixedly connected to the upper and lower ends of the steel pipes 3 through the induction plates 32. When the tunnel or mine tunnel collapses, the pressure is transmitted to the high-strength springs welded by welding plates inside the steel pipe 3 through the vertical U-shaped support 1. The pressure causes the high-strength springs to vibrate and expand and contract. When the pressure exceeding the threshold is transmitted to the induction plates 32, the alarm 12 sounds an alarm, thereby playing the role of a monitoring alarm. At the same time, various induction plates and wires are embedded in the U-shaped steel, which reduces the space of the alarm device and facilitates subsequent construction operations.

[0020] The working principle of this application is:

[0021] The present invention provides a U-shaped support 1 to support the tunnel or mine tunnel, thereby reducing the risk of collapse of the tunnel or mine tunnel. The infrared laser rangefinder measures the position of each sensor piece 21 by laser. When the support device does not exceed the maximum pressure, the device can play a supporting role to protect the safety of personnel. When the sensor piece 21 is displaced, an alarm is issued in time through the alarm 12. At the same time, when the tunnel or mine tunnel collapses, the high-strength spring is caused to vibrate and expand and contract. When the pressure exceeding the threshold is transmitted to the sensor piece 2 32, the alarm 12 issues an alarm, thereby playing the role of a monitoring alarm.

[0022] The present invention expands the function of traditional tunnel or mine tunnel safety support, and timely warns when the tunnel or mine tunnel collapses, thereby protecting the life and property safety of the workers to the greatest extent.

[0023] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A tunnel or mine tunnel safety support and alarm device, characterized in that: The invention comprises two U-shaped supports (1), the two U-shaped supports (1) are fixedly connected by a plurality of steel wires (11), a distance meter (2) is arranged at the upper end of one of the U-shaped supports (1), a plurality of induction sheets (21) matching the distance meter (2) are arranged on the U-shaped support (1), steel pipes (3) are arranged at both ends below the U-shaped support (1), a spring (31) is arranged inside the steel pipe (3), the two ends of the spring (31) are fixedly connected to the upper and lower ends of the steel pipe (3) through induction sheets (32), and an alarm (12) is arranged on the outside of the U-shaped support (1).

2. A tunnel or mine tunnel safety support and alarm device according to claim 1, characterized in that: The spring (31) is a high-strength spring.

3. A tunnel or mine tunnel safety support and alarm device according to claim 1, characterized in that: The rangefinder (2) is an infrared laser rangefinder.

4. A tunnel or mine tunnel safety support and alarm device according to claim 1, characterized in that: The five induction plates (21) are evenly distributed on the side of the U-shaped support (1).

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