A subway tunnel mobile heat detection device and a detection system thereof

Abstract

This invention discloses a mobile heat detection device and system for subway tunnels, comprising a housing, a motor mounted on the inner bottom wall of the housing, a lead screw mounted on the drive shaft of the motor, a sliding plate slidably connected to the outer wall of the lead screw, an mounting plate welded to the upper surface of the sliding plate, and two guide columns slidably connected inside the sliding plate. The invention uses the motor to drive the lead screw to rotate, which in turn drives the sliding plate to move along the guide columns. The sliding plate then drives the mounting plate to move along the fixed columns. A temperature probe at the top of the extension rod cyclically detects the temperature inside the tunnel. Rotating an adjustment disc causes the threaded rod to rotate, which in turn moves a ring-shaped locking block via a connecting plate and connecting columns. This releases the ring-shaped locking block from restricting the position of the extension rod, allowing workers to hold the extension rod and perform temperature detection at designated locations, making it more convenient to use and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of subway tunnel inspection technology, specifically to a mobile thermal detection device and its detection system for subway tunnels. Background Technology

[0002] Tunnels are engineering structures buried underground, representing a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. Subway tunnels are a type of traffic tunnel.

[0003] Due to factors such as subway operation and weather, the heat inside subway tunnels often becomes excessively high. Therefore, it is necessary to frequently monitor the temperature inside subway tunnels to prevent excessive heat from affecting subway operations. Currently, most subway tunnel heat detection devices are fixed and cannot detect specific locations during operation, resulting in low detection efficiency. To address this, a mobile heat detection device and its detection system for subway tunnels are proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile heat detection device and system for subway tunnels to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile heat detection device and its detection system for subway tunnels, comprising a housing, a motor installed on the inner bottom wall of the housing, a lead screw installed on the drive shaft of the motor, a sliding plate slidably connected to the outer side wall of the lead screw, an mounting plate welded to the upper surface of the sliding plate, two guide columns slidably connected inside the sliding plate, a fixing column slidably connected inside the mounting plate, a fixing sleeve welded to the upper surface of the mounting plate, an extension rod attached to the inner side wall of the fixing sleeve, an annular locking block and four connecting blocks provided on the outer side of the fixing sleeve, two adjacent faces of the connecting blocks symmetrically welded to the outer side wall of the fixing sleeve, and two other adjacent faces of the connecting blocks symmetrically welded to the outer side wall of the annular locking block, a threaded rod rotatably connected to the outer side wall of the annular locking block via a bearing, a connecting plate threadedly connected to the outer side wall of the threaded rod, and two connecting columns symmetrically welded to one side of the connecting plate.

[0006] In a further preferred embodiment, one end of the connecting post passes through two connecting blocks in sequence, a limit ring is welded to the end of the connecting post that passes through the second connecting block, and an adjusting disc is welded to the end of the threaded rod away from the annular locking block. The adjusting disc then drives the annular locking block to move, thereby clamping and fixing the extension rod.

[0007] More preferably, the two ends of the two guide posts are respectively welded to the two sides of the inner wall of the box, and the two ends of the fixed post are respectively welded to the two sides of the inner wall of the box. The two guide posts are located below the fixed post, so that the sliding plate and the mounting plate can move along the guide posts and the fixed post.

[0008] In a further preferred embodiment, a battery is installed on the inner bottom wall of the enclosure, a controller is installed on the upper surface of the enclosure, and an audible and visual alarm is installed on the upper surface of the enclosure. When the temperature inside the tunnel exceeds the rated temperature, the audible and visual alarm will sound and light up to alert the staff.

[0009] In a further preferred embodiment, the end of the lead screw away from the motor is rotatably connected to the inner wall of the housing via a bearing, thereby driving the sliding plate to move via the lead screw.

[0010] More preferably, four support columns are symmetrically welded to the lower surface of the box, and a ring support frame is welded to the lower surface of two of the support columns, thereby supporting and fixing the box through the ring support frame.

[0011] More preferably, both ends of the annular support frame are welded with mounting blocks, and the mounting blocks are equipped with rollers inside. The rollers fit snugly against the tracks inside the subway, making movement easier.

[0012] In a further preferred embodiment, a temperature probe is installed at the end of the extension rod away from the fixed sleeve, thereby detecting the temperature inside the tunnel.

[0013] This application provides a subway tunnel heat detection system, comprising: the subway tunnel heat detection device performing the subway tunnel heat detection system.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a motor to drive a lead screw to rotate, the lead screw to drive a sliding plate to move along a guide post, the sliding plate to drive an mounting plate to move along a fixed post, and then a fixed sleeve to drive an extension rod to move. The temperature probe at the top of the extension rod is used to cyclically detect the temperature inside the tunnel. When a specific location needs to be detected, the adjustment disc is rotated, which drives the threaded rod to rotate. The threaded rod, through a connecting plate and a connecting post, drives a ring-shaped locking block to move, releasing the ring-shaped locking block from restricting the position of the extension rod. This allows workers to hold the extension rod to detect the temperature at the specified location, making it more convenient to use and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the lead screw structure of the present invention;

[0017] Figure 3This is a schematic diagram of the box structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the fixed sleeve structure of the present invention.

[0019] In the diagram: 10. Fixed sleeve; 11. Connecting block; 12. Adjusting disc; 13. Threaded rod; 14. Connecting plate; 15. Connecting column; 16. Annular locking block; 17. Limiting ring; 18. Sliding plate; 19. Motor; 20. Mounting plate; 21. Guide column; 22. Fixed column; 23. Lead screw; 24. Annular support frame; 25. Support column; 26. Mounting block; 27. Roller; 28. Audible and visual alarm; 29. ​​Controller; 30. Extension rod; 31. Temperature probe; 32. Housing; 33. Battery. Detailed Implementation

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

[0021] Example

[0022] Please see Figure 1-4 This invention provides a technical solution: a mobile heat detection device and its detection system for subway tunnels, comprising a housing 32, a motor 19 mounted on the inner bottom wall of the housing 32, a lead screw 23 mounted on the drive shaft of the motor 19, a sliding plate 18 slidably connected to the outer wall of the lead screw 23, an mounting plate 20 welded to the upper surface of the sliding plate 18, two guide posts 21 slidably connected inside the sliding plate 18, a fixing post 22 slidably connected inside the mounting plate 20, and a fixing sleeve 1 welded to the upper surface of the mounting plate 20. 0. An extension rod 30 is attached to the inner wall of the fixed sleeve 10. An annular locking block 16 and four connecting blocks 11 are provided on the outer side of the fixed sleeve 10. The adjacent surfaces of two connecting blocks 11 are symmetrically welded to the outer wall of the fixed sleeve 10. The adjacent surfaces of the other two connecting blocks 11 are symmetrically welded to the outer wall of the annular locking block 16. A threaded rod 13 is rotatably connected to the outer wall of the annular locking block 16 through a bearing. A connecting plate 14 is threadedly connected to the outer wall of the threaded rod 13. Two connecting posts 15 are symmetrically welded to one side of the connecting plate 14.

[0023] In this embodiment, specifically: one end of the connecting post 15 passes through two connecting blocks 11 in sequence, and a limit ring 17 is welded to the end of the connecting post 15 that passes through the second connecting block 11. An adjusting plate 12 is welded to the end of the threaded rod 13 away from the annular locking block 16. When the adjusting plate 12 is rotated, the annular locking block 16 is moved by the threaded rod 13, thereby fixing the extension rod 30 or releasing the position limitation of the extension rod 30.

[0024] In this embodiment, specifically: the two ends of the two guide posts 21 are respectively welded to the two sides of the inner wall of the housing 32, and the two ends of the fixed post 22 are respectively welded to the two sides of the inner wall of the housing 32. The two guide posts 21 are located below the fixed post 22, thereby causing the sliding plate 18 to move along the guide posts 21 and the mounting plate 20 to move along the guide posts 21. The sliding plate 18 and the mounting plate 20 are more stable when moving.

[0025] In this embodiment, specifically: a battery 33 is installed on the inner bottom wall of the box 32, a controller 29 is installed on the upper surface of the box 32, and an audible and visual alarm 28 is installed on the upper surface of the box 32. When the temperature inside the tunnel exceeds the rated value, the audible and visual alarm 28 will activate to alert the staff.

[0026] In this embodiment, specifically: the end of the lead screw 23 away from the motor 19 is rotatably connected to the inner wall of the housing 32 through a bearing, thereby driving the sliding plate 18 to move along the guide post 21 through the lead screw 23.

[0027] In this embodiment, specifically: four support columns 25 are symmetrically welded to the lower surface of the box 32, and an annular support frame 24 is welded to the lower surface of two support columns 25. The annular support frame 24 can support the box 32 and prevent the box 32 from falling off.

[0028] In this embodiment, specifically: both ends of the annular support frame 24 are welded with mounting blocks 26, and rollers 27 are installed inside the mounting blocks 26. The rollers 27 fit in contact with the subway track, making it more convenient to change working positions.

[0029] In this embodiment, specifically: a temperature probe 31 is installed at the end of the extension rod 30 away from the fixed sleeve 10, so that the temperature inside the tunnel can be detected by the temperature probe 31.

[0030] In this embodiment, specifically: the electrical output terminal of the battery 33 is electrically connected to the electrical input terminals of the controller 29 and the motor 19 respectively via wires, and the electrical output terminal of the controller 29 is electrically connected to the electrical input terminals of the audible and visual alarm 28 and the temperature probe 31 respectively via wires.

[0031] In this embodiment, the controller 29 is model SK3110, and the temperature probe 31 is model WRNK-191.

[0032] When this invention is in operation, the storage battery 33 provides power, the motor 19 operates, and the temperature probe 31 detects the temperature inside the tunnel. The output shaft of the motor 19 drives the lead screw 23 to rotate, and the lead screw 23 drives the sliding plate 18 to move. At this time, the sliding plate 18 moves stably through the guide post 21, and simultaneously the sliding plate 18 drives the mounting plate 20 to move along the fixed post 22. The mounting plate 20 drives the fixed sleeve 10 to move smoothly, and the fixed sleeve 10 drives the extension rod 30 to move. In turn, the temperature probe 31 on the extension rod 30 cyclically detects the temperature inside the tunnel, thus expanding the detection range and improving detection efficiency. When the staff needs to detect a specific location inside the tunnel, they can rotate the adjusting disc 12 counterclockwise, which drives the threaded rod. Rotating the threaded rod 13 causes the threaded rod 13 to drive the annular locking block 16 through the connecting column 15 and the connecting plate 14, thereby moving the annular locking block 16 away from the extension rod 30 and releasing the position restriction on the extension rod 30. At this time, the staff can take out the extension rod 30 and monitor the temperature at the designated position. When the temperature exceeds the rated value, the temperature probe 31 on the extension rod 30 transmits the signal to the controller 29. After receiving the signal, the controller 29 controls the sound and light alarm 28 to work. The sound and light alarm 28 sounds and lights up to alert the staff on site. When it is necessary to change the detection position, the box 32 is pushed to drive the annular support frame 24. The annular support frame 24 moves on the subway track through the rollers 27, which is more convenient when constantly changing the detection position.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal detection device for subway tunnels, comprising a housing (32), characterized in that: A motor (19) is installed on the inner bottom wall of the housing (32). A lead screw (23) is installed on the drive shaft of the motor (19). A sliding plate (18) is slidably connected to the outer side wall of the lead screw (23). An mounting plate (20) is welded to the upper surface of the sliding plate (18). Two guide posts (21) are slidably connected inside the sliding plate (18). A fixing post (22) is slidably connected inside the mounting plate (20). A fixing sleeve (10) is welded to the upper surface of the mounting plate (20). An extension rod is attached to the inner side wall of the fixing sleeve (10). (30) The outer side of the fixed sleeve (10) is provided with an annular locking block (16) and four connecting blocks (11). The adjacent faces of two of the connecting blocks (11) are symmetrically welded to the outer side wall of the fixed sleeve (10), and the adjacent faces of the other two connecting blocks (11) are symmetrically welded to the outer side wall of the annular locking block (16). The outer side wall of the annular locking block (16) is rotatably connected to a threaded rod (13) through a bearing. The outer side wall of the threaded rod (13) is threadedly connected to a connecting plate (14). Two connecting columns (15) are symmetrically welded to one side of the connecting plate (14).

2. The heat detection device for subway tunnels according to claim 1, characterized in that: One end of the connecting post (15) passes through two connecting blocks (11) in sequence. A limit ring (17) is welded to the end of the connecting post (15) that passes through the second connecting block (11). An adjusting disc (12) is welded to the end of the threaded rod (13) that is away from the annular locking block (16).

3. The heat detection device for subway tunnels according to claim 1, characterized in that: The two guide posts (21) are welded to the inner walls of the box (32) at both ends, and the two fixing posts (22) are welded to the inner walls of the box (32) at both ends. The two guide posts (21) are located below the fixing posts (22).

4. The heat detection device for subway tunnels according to claim 3, characterized in that: A battery (33) is installed on the inner bottom wall of the enclosure (32), a controller (29) is installed on the upper surface of the enclosure (32), and an audible and visual alarm (28) is installed on the upper surface of the enclosure (32).

5. The heat detection device for subway tunnels according to claim 1, characterized in that: The end of the lead screw (23) away from the motor (19) is rotatably connected to the inner wall of the housing (32) via a bearing.

6. The heat detection device for subway tunnels according to claim 4, characterized in that: The lower surface of the box (32) is symmetrically welded with four support columns (25), and the lower surfaces of two of the support columns (25) are welded together with an annular support frame (24).

7. A thermal detection device for subway tunnels according to claim 6, characterized in that: Mounting blocks (26) are welded to both ends of the annular support frame (24).

8. A thermal detection device for subway tunnels according to claim 7, characterized in that: The mounting block (26) is equipped with rollers (27).

9. A thermal detection device for subway tunnels according to claim 1, characterized in that: A temperature probe (31) is installed at the end of the extension rod (30) away from the fixed sleeve (10).

10. A thermal detection system for subway tunnels, characterized in that, The system includes the subway tunnel heat detection device according to any one of claims 1-8.

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