A gas detection and alarm device for subway tunnels

Abstract

This utility model relates to the field of gas detection technology in subway tunnels, and more particularly to a gas detection and alarm device for subway tunnels. This utility model provides a gas detection and alarm device for subway tunnels that can reduce the impact of subway operation on gas detection alarms and ensure the accuracy and reliability of gas detection data. The device includes a support frame and a first sleeve, with the first sleeve slidably connected to both the left and right sides of the support frame. When vibrations occur during subway operation and are transmitted to the placement frame, the first sliding frame moves on the first sleeve, and the second sliding frame moves within the second sleeve. The forces of the first and second extension springs dampen the vibrations of the first and second sliding frames, thus reducing the impact of subway operation on the gas detection alarm and ensuring the accuracy and reliability of gas detection data.

Description

Technical Field

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

[0002] Subway tunnels are relatively enclosed spaces with poor air circulation, making them prone to accumulating harmful gases such as carbon monoxide (CO), carbon dioxide (CO2), and methane (CH4). To ensure the safety of passengers and staff, these gases must be monitored in real time.

[0003] Existing gas detection and alarm devices in subway tunnels are usually installed directly inside the tunnel using bolts or other methods to detect gases and issue alarms. However, the strong vibrations generated by subway trains can easily interfere with the gas detection alarms, leading to distorted detection results or false alarms, thus affecting the normal operation of the monitoring system.

[0004] Therefore, a gas detection and alarm device for subway tunnels has now been developed that can reduce the impact of subway operation on gas detection alarms and ensure the accuracy and reliability of gas detection data. Utility Model Content

[0005] To overcome the shortcomings of existing gas detection and alarm devices in subway tunnels, which are typically rigidly installed and subject to strong vibrations from subway trains, causing interference to the gas detection and alarm devices, this invention provides a gas detection and alarm device for subway tunnels that can reduce the impact of subway operation on gas detection and alarm devices and ensure the accuracy and reliability of gas detection data.

[0006] The technical implementation scheme of this utility model is as follows: a gas detection and alarm device for subway tunnels, comprising a support frame, a first sleeve, a first sliding frame, a first telescopic spring, a second sliding frame, a second sleeve, a second telescopic spring, a placement frame, a gas detection alarm, a fixing component, and a ventilation component. The support frame is slidably connected to the left and right sides of each other, and the first sleeves are connected to the first sliding frame via damping. Each first sleeve is connected to the first sliding frame via a first telescopic spring. A second sliding frame is connected to the side of each first sleeve that is far apart from the others. The support frame is connected to the upper and lower parts of each other, with two second sleeves on the left and right sides. Each second sliding frame is slidably connected to the adjacent second sleeve via damping, and a second telescopic spring is connected to each connected second sleeve via a second sliding frame. A placement frame is connected to the middle of the first sliding frame, and a gas detection alarm is placed inside the placement frame. The placement frame is equipped with a fixing component to fix the gas detection alarm, and a ventilation component to accelerate air circulation.

[0007] Optionally, the support frame has multiple mounting holes.

[0008] Optionally, the placement frame is equipped with a rotating frame door.

[0009] Optionally, the fixing component includes a limiting frame and a third telescopic spring. The limiting frame is slidably connected inside the placement frame. The limiting frame is in contact with the gas detection alarm. The left and right sides of the limiting frame are connected to the placement frame by a third telescopic spring.

[0010] Optionally, paddles are provided on the front sides of both the left and right sides of the restraint frame.

[0011] Optionally, the ventilation assembly includes an air inlet pipe, a dust filter, an air outlet pipe, and a fan. The air inlet pipe is connected to the upper side of the placement frame, the dust filter is connected to the inner sides of both the upper and lower parts of the placement frame, the air outlet pipe is connected to the lower side of the placement frame, and a fan is installed inside the air outlet pipe.

[0012] The present invention has the following advantages: 1. When vibration is transmitted to the placement frame during subway operation, the first sliding frame moves on the first sleeve and the second sliding frame moves inside the second sleeve. The first and second sliding frames are damped by the force of the first and second telescopic springs, which reduces the impact on the gas detection alarm during subway operation and ensures the accuracy and reliability of gas detection data.

[0013] 2. This utility model places the gas detector alarm between the limiting frame and the placement frame. After placement, the limiting frame is released, and the third telescopic spring returns, causing the limiting frame to reset and fix the gas detector alarm. This achieves the effect of quick and convenient disassembly and assembly of the gas detector alarm, improving the maintenance efficiency of the gas detector alarm. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the support frame and sleeve of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the placement frame and air intake pipe of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the dustproof net and gas detection alarm of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the limiting frame of this utility model.

[0019] In the above attached diagram: 1: support frame, 2: first sleeve, 3: first sliding frame, 4: first telescopic spring, 5: second sliding frame, 6: second sleeve, 7: second telescopic spring, 8: placement frame, 9: air inlet pipe, 10: dustproof net, 11: gas detection alarm, 12: limiting frame, 13: third telescopic spring, 14: air outlet pipe, 15: fan. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] A gas detection and alarm device for subway tunnels, such as Figures 1-5 As shown, the assembly includes a support frame 1, a first sleeve 2, a first sliding frame 3, a first telescopic spring 4, a second sliding frame 5, a second sleeve 6, a second telescopic spring 7, a placement frame 8, a gas detector alarm 11, a fixing assembly, and a ventilation assembly. The first sleeves 2 are slidably connected to both the left and right sides of the support frame 1. The support frame 1 has four mounting holes for easy installation and fixing. The first sliding frames 3 are connected to the first sleeves 2 via damping. The first telescopic springs 4 connect each first sleeve 2 to the first sliding frame 3. The first sleeves 2 are spaced apart from each other. The second sliding frame 5 is connected to the upper side of the support frame 1. The upper and lower parts of the support frame 1 are connected to the left and right second sleeves 6. The second sliding frame 5 is slidably connected to the adjacent second sleeve 6 through damping. The second sliding frame 5 is connected to the connected second sleeve 6 by the second telescopic spring 7. The middle part of the first sliding frame 3 is connected to the placement frame 8. The placement frame 8 is provided with a rotating frame door for easy closure. The gas detector alarm 11 is placed inside the placement frame 8. The placement frame 8 is provided with a fixing component and a ventilation component.

[0022] like Figure 2 , Figure 4 and Figure 5 As shown, the fixing component includes a limiting frame 12 and a third telescopic spring 13. The limiting frame 12 is slidably connected inside the placement frame 8. The limiting frame 12 is in contact with the gas detector alarm 11. The left and right front sides of the limiting frame 12 are provided with levers for easy pushing. The left and right sides of the limiting frame 12 are connected to the placement frame 8 by the third telescopic spring 13.

[0023] like Figures 1-4As shown, the ventilation assembly includes an air inlet pipe 9, a dustproof net 10, an air outlet pipe 14, and a fan 15. The upper side of the placement frame 8 is connected to the air inlet pipe 9, and the inner sides of both the upper and lower parts of the placement frame 8 are connected to the dustproof net 10. The lower side of the placement frame 8 is connected to the air outlet pipe 14, and the fan 15 is installed inside the air outlet pipe 14.

[0024] When using this utility model, first install the support frame 1 inside the subway tunnel, then rotate and open the frame door, push the limiting frame 12 upward, and the third telescopic spring 13 is compressed and contracted. Then place the gas detector alarm 11 between the limiting frame 12 and the placement frame 8. After placement, release the limiting frame 12, and the third telescopic spring 13 rebounds, causing the limiting frame 12 to reset and fix the gas detector alarm 11. When maintenance of the gas detector alarm 11 is required, push the limiting frame 12 upward to remove the gas detector alarm 11. This allows for quick and convenient disassembly and assembly of the gas detector alarm 11, improving maintenance efficiency. After installation, close the frame door and then start the fan 15. The system allows air from the subway tunnel to enter the placement frame 8 through the air inlet pipe 9 and then exit through the air outlet pipe 14, enabling the gas detection alarm 11 to detect the gas. When an abnormality is detected, the gas detection alarm 11 will sound an alarm. The dustproof net 10 is used to prevent dust from entering the placement frame 8. When vibrations occur during subway operation and are transmitted to the placement frame 8, the first sliding frame 3 moves on the first sleeve 2, and the second sliding frame 5 moves within the second sleeve 6. The force of the first telescopic spring 4 and the second telescopic spring 7 dampens the vibrations of the first sliding frame 3 and the second sliding frame 5, thereby reducing the impact of subway operation on the gas detection alarm 11 and ensuring the accuracy and reliability of the gas detection data.

[0025] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A gas detection and alarm device for subway tunnels, characterized in that: The system includes a support frame (1), a first sleeve (2), a first sliding frame (3), a first telescopic spring (4), a second sliding frame (5), a second sleeve (6), a second telescopic spring (7), a placement frame (8), a gas detector alarm (11), a fixing component, and a ventilation component. The support frame (1) is slidably connected to the first sleeve (2) on both its left and right sides. The first sleeves (2) are connected to the first sliding frame (3) via a damping sliding mechanism. Each first sleeve (2) is connected to the first sliding frame (3) via a first telescopic spring (4). Each of the first sleeves (2) has a [missing information - likely a typo, should be "4"]. The second sliding frame (5) and the support frame (1) are connected to two second sleeves (6) on the left and right sides. The second sliding frame (5) is slidably connected to the adjacent second sleeve (6) through damping. The second sliding frame (5) is connected to the connected second sleeve (6) by a second telescopic spring (7). The first sliding frame (3) is connected to a placement frame (8) in the middle. A gas detector alarm (11) is placed inside the placement frame (8). The placement frame (8) is provided with a fixing component that can fix the gas detector alarm (11). The placement frame (8) is also provided with a ventilation component that can accelerate air circulation.

2. The gas detection and alarm device for use in a subway tunnel according to claim 1, wherein: The support frame (1) has multiple mounting holes.

3. A gas detection and alarm device for subway tunnels according to claim 1, characterized in that: The placement frame (8) is equipped with a rotating frame door.

4. The gas detection and alarm device for use in a subway tunnel according to claim 1, wherein: The fixing components include a limiting frame (12) and a third telescopic spring (13). The limiting frame (12) is slidably connected inside the placement frame (8). The limiting frame (12) is in contact with the gas detector alarm (11). The left and right sides of the limiting frame (12) are connected to the placement frame (8) by the third telescopic spring (13).

5. A gas detection and alarm device for use in a subway tunnel according to claim 4, wherein: The left and right front sides of the restraint frame (12) are equipped with paddles.

6. The gas detection and alarm device for use in a subway tunnel according to claim 1, wherein: The ventilation assembly includes an air inlet pipe (9), a dustproof net (10), an air outlet pipe (14), and a fan (15). The upper side of the placement frame (8) is connected to the air inlet pipe (9), the inner sides of the upper and lower parts of the placement frame (8) are connected to the dustproof net (10), the lower side of the placement frame (8) is connected to the air outlet pipe (14), and the fan (15) is installed inside the air outlet pipe (14).

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