A gas monitoring device for shield tunnels

Abstract

This utility model discloses a gas monitoring device for shield tunnels, including a display screen and a monitor. The display screen and the monitor are connected by a communication line. An installation strip is provided on the back of the display screen, and the installation strip is connected to the tunnel wall via a connecting structure. The installation strip is provided with a first hanging ear and a second hanging ear. The back of the display screen is provided with a first hanging lug that inserts into the first hanging ear. This utility model, by setting up the installation strip, the first hanging ear, the first hanging lug, the second hanging ear, and the clamping claw, allows the display screen and the monitor to be easily installed on the installation strip. The installation process is simple and efficient, and also facilitates later maintenance and replacement. The monitor is equipped with multiple gas sensors, capable of monitoring various gases such as hydrogen sulfide, carbon monoxide, oxygen, and methane in the tunnel, providing a comprehensive understanding of the gas conditions inside the tunnel. When the gas concentration exceeds the standard, a buzzer will sound an alarm, promptly reminding workers to take appropriate measures to ensure construction safety.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling technology, and in particular to a gas monitoring device for shield tunnels. Background Technology

[0002] During shield tunnel construction, the gaseous environment inside the tunnel is complex, and there may be toxic gases such as hydrogen sulfide and carbon monoxide, as well as flammable and explosive gases such as methane. At the same time, the oxygen content may also be abnormal. All of these seriously threaten the life safety of construction personnel and the smooth progress of construction.

[0003] Existing gas monitoring devices for shield tunnels have many shortcomings. Some devices are not easy to install, are not securely fixed to the tunnel wall, and are not easy to adjust in position according to actual needs; some monitoring devices monitor only a limited number of gas types, and cannot comprehensively reflect the gas conditions inside the tunnel; and some devices have alarm mechanisms that are not sensitive enough, and cannot promptly alert staff when gas concentrations exceed the standard, posing significant safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gas monitoring device for shield tunnels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas monitoring device for a shield tunnel includes a display screen and a monitor, which are connected by a communication line. The back of the display screen is provided with an installation strip, which is connected to the tunnel wall through a connecting structure. The installation strip is provided with a first hanging ear and a second hanging ear. The back of the display screen is provided with a first hanging nose that is inserted into the first hanging ear. The back of the monitor is provided with a clamping claw that is clamped and fixed to the second hanging ear.

[0007] Preferably, the monitor includes a housing, a switch is installed on the side wall of the housing, an ECU integrated board is installed inside the housing, and a number of gas sensors and a buzzer are installed on the ECU integrated board.

[0008] Preferably, the connection structure includes expansion bolts connected to the tunnel wall, the expansion bolts being located in the waist holes provided at both ends of the mounting strip.

[0009] Preferably, the gas sensor includes a hydrogen sulfide sensor, a carbon monoxide sensor, an oxygen sensor, and a methane sensor.

[0010] Preferably, the display screen displays the gas concentrations of the tunnel boring machine's up and down lines in zones.

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

[0012] This utility model, by setting up an installation strip, a first hanging ear, a first hanging nose, a second hanging ear, and a clamping claw, enables the display screen and monitor to be conveniently installed on the installation strip. The installation process is simple and efficient, and it also facilitates later maintenance and replacement.

[0013] The monitor is equipped with multiple gas sensors, which can monitor various gases such as hydrogen sulfide, carbon monoxide, oxygen, and methane in the tunnel, providing a comprehensive understanding of the gas conditions inside the tunnel.

[0014] When the gas concentration exceeds the standard, the buzzer will sound an alarm to promptly remind staff to take appropriate measures to ensure construction safety.

[0015] The connection structure uses expansion bolts and waist holes, which not only firmly fixes the mounting strip to the tunnel wall, but also allows for easy adjustment of the mounting strip's position to meet different installation needs.

[0016] The display screen shows the gas concentration in different zones along the tunnel boring machine's up and down lines, allowing staff to clearly and intuitively understand the gas conditions in different areas, which facilitates management and decision-making. Attached Figure Description

[0017] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure proposed in this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure proposed in this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure proposed in this utility model. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the structure of the monitor proposed in this utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the structure of the monitor proposed in this utility model. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the structure of the monitor proposed in this utility model. Figure 3 ; .

[0024] In the diagram: 1. Display screen; 2. Monitor; 21. Housing; 22. Gas sensor; 23. Buzzer; 24. ECU integrated board; 25. Switch; 3. Mounting strip; 4. Waist hole; 5. Clamping claw; 6. Hanging ear one; 7. Hanging nose one; 8. Hanging ear two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-6 A shield tunnel gas monitoring device includes a display screen 1 and a monitor 2, which are connected by a communication line. The back of the display screen 1 is provided with an installation strip 3, which is connected to the tunnel wall through a connecting structure. The connecting structure includes expansion bolts connected to the tunnel wall. The expansion bolts are located in waist holes 4 at both ends of the installation strip 3. This structure facilitates the fixing and position adjustment of the installation strip 3.

[0027] The mounting strip 3 is provided with a first hook 6 and a second hook 8. The back of the display screen 1 is provided with a first hook nose 7 that plugs into the first hook 6. By the plugging and matching of the first hook 6 and the first hook nose 7, the display screen 1 can be quickly installed on the mounting strip 3. The back of the monitor 2 is provided with a clamping claw 5 that clamps and fixes to the second hook 8. By using the clamping claw 5 and the second hook 8 to clamp and fix, the monitor 2 can be easily installed on the mounting strip 3.

[0028] The monitor 2 includes a housing 21. A switch 25 is installed on the side wall of the housing 21 to control the opening and closing of the monitor 2. An ECU integrated board 24 is installed inside the housing 21. Several gas sensors 22 and a buzzer 23 are installed on the ECU integrated board 24. The gas sensors 22 include hydrogen sulfide sensors, carbon monoxide sensors, oxygen sensors and methane sensors. These sensors can detect the concentration of the corresponding gas in the tunnel and transmit the detected signals to the ECU integrated board 24. When the concentration of a certain gas exceeds the standard, the ECU integrated board 24 will control the buzzer 23 to sound an alarm.

[0029] Display screen 1 shows the gas concentration in different areas of the tunnel boring machine's up and down lines, allowing staff to intuitively understand the gas concentration in different areas of the tunnel boring machine's up and down lines.

[0030] In this case, during the installation of the shield tunnel gas monitoring device, the mounting strip 3 is first fixed to a suitable position on the tunnel wall using expansion bolts. The expansion bolts pass through the waist holes 4 at both ends of the mounting strip 3, allowing the position of the mounting strip 3 to be adjusted according to actual needs. Then, the hanging nose 7 on the back side of the display screen 1 is inserted into the hanging ear 6 on the mounting strip 3 to complete the installation of the display screen 1; the clamping claw 5 on the back side of the monitor 2 is clamped and fixed to the hanging ear 8 on the mounting strip 3 to complete the installation of the monitor 2.

[0031] In use, switch 25 of monitor 2 is turned on, and gas sensor 22 starts working, detecting the concentrations of gases such as hydrogen sulfide, carbon monoxide, oxygen, and methane in the tunnel. The detection data is transmitted to display screen 1 via a communication line. Display screen 1 displays these data in sections, showing the gas concentrations for the tunnel boring machine's up and down lines respectively. When the concentration of a certain gas exceeds a preset value, ECU integrated board 24 will control buzzer 23 to sound an alarm, alerting the staff.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shield tunnel gas monitoring device, comprising a display screen (1) and a monitor (2), the display screen (1) and the monitor (2) being connected through a communication line, characterized in that, The back of the display screen (1) is provided with an installation strip (3), which is connected to the tunnel wall through a connecting structure. The installation strip (3) is provided with a first hanging ear (6) and a second hanging ear (8). The back of the display screen (1) is provided with a first hanging nose (7) that is inserted into the first hanging ear (6). The back of the monitor (2) is provided with a clamping claw (5) that is clamped and fixed to the second hanging ear (8).

2. The shield tunnel gas monitoring device according to claim 1, characterized in that, The monitor (2) includes a housing (21), a switch (25) is installed on the side wall of the housing (21), an ECU integrated board (24) is installed inside the housing (21), and several gas sensors (22) and a buzzer (23) are installed on the ECU integrated board (24).

3. The shield tunnel gas monitoring device according to claim 2, characterized in that, The connection structure includes expansion bolts connected to the tunnel wall, which are located in the waist holes (4) at both ends of the mounting strip (3).

4. The shield tunnel gas monitoring device according to claim 3, characterized in that, The gas sensor (22) includes a hydrogen sulfide sensor, a carbon monoxide sensor, an oxygen sensor, and a methane sensor.

5. The shield tunnel gas monitoring device according to claim 4, characterized in that, The display screen (1) displays the gas concentration of the shield tunneling machine's up and down lines in sections.

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