Tunnel engineering one-key alarm system

Abstract

The utility model belongs to the technical field of tunnel alarm devices, and particularly relates to a one-key alarm system for tunnel engineering, which comprises a power supply, a plurality of alarms arranged along the length direction of a tunnel, a first switch for controlling the alarms to work, and a control assembly for controlling the first switch to be switched on / off, the power supply, the first switch and the alarms form a series circuit; the first switch comprises a shell, a conducting strip I which is horizontally connected in the shell in a sliding manner, a conducting strip II which is fixedly connected in the shell, and an elastic piece for resetting the conducting strip II; the control assembly comprises a trigger rope and a protection pipe arranged in the length direction of the tunnel, one end of the protection pipe communicates with the interior of the shell, and a plurality of exposure holes are formed in the pipe wall of the protection pipe in the axial direction. According to the utility model, a detector can pull out the trigger rope through the exposure hole in the protection tube nearby, so that the conducting strip I and the conducting strip II are contacted, a series circuit is closed, the alarm is electrified to work and gives an alarm, and timely manual alarm is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel alarm devices, and in particular relates to a one-button alarm system for tunnel engineering. Background Art

[0002] During tunnel construction, it is particularly important to ensure the personal safety of construction workers. At present, the monitoring of arch settlement and toxic and harmful gases in tunnels is mostly carried out through sensors such as settlement sensors and gas sensors. However, since the sensors are usually arranged at intervals, that is, the sensors cannot completely cover the tunnel, it is necessary to arrange inspection personnel to regularly inspect the tunnel conditions. However, due to the lack of manual alarm devices in the tunnel or the installation point of the manual alarm device is far away from the location where the inspection personnel discovered the dangerous situation, when the inspection personnel discovered dangerous situations in the tunnel, such as excessive settlement and excessive concentration of toxic and harmful gases, the inspection personnel could not manually alarm in time to notify all construction personnel in the tunnel, resulting in the inability to evacuate personnel in time, posing a considerable safety hazard. Utility Model Content

[0003] The utility model aims to provide a one-button alarm system for tunnel engineering, so as to solve the problem that detection personnel in the tunnel cannot manually alarm in time.

[0004] In order to achieve the above-mentioned purpose, the scheme of the utility model is as follows: a one-button alarm system for tunnel engineering, comprising a power supply, a plurality of alarms arranged along the length direction of the tunnel, and a first switch for controlling the operation of the alarms, the power supply, the first switch and the plurality of alarms form a series circuit, and also comprises a control component for controlling the closing / opening of the first switch; the first switch comprises a shell, a conductive sheet I, a conductive sheet II and an elastic member, the conductive sheet I is horizontally slidably connected in the shell, and one end of the elastic member is connected to the conductive sheet I, the other end of the elastic member is connected to the inner wall of the shell, and the conductive sheet II is fixedly connected in the shell; the control component comprises a trigger rope and a protective tube for protecting the trigger rope, the protective tube is arranged along the length direction of the tunnel, one end of the protective tube is connected to the inside of the shell, a plurality of exposure holes are opened on the tube wall of the protective tube in the axial direction, one end of the trigger rope is fixedly connected to the conductive sheet I, the other end of the trigger rope passes through the protective tube away from one end of the first switch and is fixed outside the protective tube, the conductive sheet I contacts the conductive sheet II under the pulling of the trigger rope, and the first switch is closed.

[0005] The working principle and beneficial effects of this solution are as follows: in this solution, a number of alarms are distributed along the length direction of the tunnel, and the protective tube is also laid along the length direction of the tunnel, and the exposure holes on the protective tube expose the trigger rope in the tube. In this way, when the inspection personnel in the tunnel find the dangerous situation in the tunnel, they select an exposure hole nearby, and pull out the trigger rope in the protective tube through the exposure hole, so that the conductive sheet I in the outer shell overcomes the elastic force of the elastic part and contacts the conductive sheet II, and the first switch is closed, thereby closing the series circuit, and the alarm is powered on to sound an alarm, realizing one-button alarm, thereby timely warning the construction personnel in the tunnel to evacuate, solving the problem that the inspection personnel in the tunnel cannot manually alarm in time after discovering the dangerous situation, and eliminating the safety hazard.

[0006] Optionally, a pull rope is provided at the exposure hole, one end of the pull rope is connected to the trigger rope in the protection tube, and the other end of the pull rope is located outside the protection tube.

[0007] In this solution, the setting of the pull rope makes it easy for the inspector to pull the trigger rope, and the inspector does not need to put his fingers into the protective tube to remove the trigger rope, which makes the operation faster.

[0008] Optionally, one end of the pull rope outside the protection tube is connected to a pull ring.

[0009] In this solution, the setting of the pull ring makes it easy for the inspector to quickly pull the pull rope.

[0010] Optionally, the protection tube is provided with a plurality of radial rods corresponding to the exposure holes.

[0011] In this solution, after pulling the pull rope and ensuring that the first switch is closed, the pull rope is tied to the radial rod, thereby ensuring that the series circuit is in a closed state and the detection personnel can evacuate outside the tunnel.

[0012] Optionally, the protection tube includes a plurality of protection tube segments, and two adjacent protection tube segments are connected via a connecting structure.

[0013] In this solution, the protection pipe segments are connected by a connecting structure. In this way, as the tunnel face is excavated, the protection pipe segments can be added to increase the length of the protection pipe, so that new manual alarm points can be arranged in the newly added tunnel space. In addition, the protection pipe can be stored after being disassembled, which is convenient for the storage of the protection pipe.

[0014] Optionally, the connection structure includes a flange and connecting bolts, the flange is fixedly connected to both ends of the protection pipe segment, and the flange is provided with connecting holes for the connecting bolts to pass through.

[0015] In this solution, the connection between two adjacent protection pipe segments is achieved through flanges and connecting bolts.

[0016] Optionally, the connection structure includes an internal threaded connector and an external threaded connector that are threaded together, the internal threaded connector is fixedly connected to one end of the protection tube segment, and the external threaded connector is fixedly connected to the other end of the protection tube segment.

[0017] In this solution, the connection between the adjacent two end protection pipe segments is achieved through the threaded connection of the internal threaded connector and the external threaded connector.

[0018] Optionally, the internal threaded connector or the external threaded connector at one end of the protection tube away from the first switch is threadedly connected to a cover, and the cover is provided with a through hole for the trigger rope to pass through.

[0019] In this solution, a cover is used to seal the end of the protection tube away from the first switch, and the through hole on the cover is used for the trigger rope to pass through. After the trigger rope passes through, a knot can be tied to prevent the trigger rope from retreating and binding the trigger rope to the outer wall of the protection tube.

[0020] Optionally, a luminous coating is provided on the outer wall of the protection tube at the exposure hole.

[0021] In this solution, the luminous coating glows in a dim environment and is different from other parts on the protective tube under light, making it easy for inspectors to quickly find the location of the exposed hole.

[0022] Optionally, the system further comprises a second switch, and the second switch, the power supply, the first switch and a plurality of alarms form a series circuit.

[0023] In this solution, after the second switch and the first switch are closed at the same time, the series circuit is closed and the alarm is powered on and works. Therefore, after the first switch is closed and the people in the tunnel are evacuated to the outside of the tunnel, the alarm can be powered off and stop working by disconnecting the second switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a one-button alarm system for tunnel engineering in Embodiment 1 of the utility model;

[0025] Figure 2 This is a circuit diagram of a power supply, a second switch, a first switch and an alarm in Embodiment 1 of the present utility model;

[0026] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0027] Figure 4 This is a schematic diagram of the structure of the protection pipe segment in the first embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the protection tube segment in the second embodiment of the utility model. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The marks in the drawings of the specification include: power supply 1, second switch 2, alarm 3, first switch 4, housing 401, conductive sheet I 402, conductive sheet II 403, elastic member 404, wire 5, trigger rope 6, protective tube 7, exposure hole 701, protective tube segment 710, pull rope 8, pull ring 9, radial rod 10, luminous coating 11, flange 12, connecting bolt 13, internal threaded connector 14, external threaded connector 15, and cover 16.

[0031] Embodiment 1

[0032] This embodiment is basically Figure 1 and Figure 2 As shown: a one-button alarm system for tunnel engineering, comprising a power supply 1, a second switch 2, a plurality of alarms 3 arranged along the length direction of the tunnel, a first switch 4 for controlling the operation of the alarm 3, and a control component for controlling the closing / opening of the first switch 4. The power supply 1, the second switch 2, the first switch 4 and the plurality of alarms 3 form a series circuit through a wire 5. In this embodiment, the distance between two adjacent alarms 3 is 5m, and the alarm 3 is an audible and visual alarm 3.

[0033] Combination Figure 3 As shown, the first switch 4 includes a housing 401, a conductive sheet I 402, a conductive sheet II 403 and an elastic member 404. The housing 401 is fixedly mounted on the side wall at the entrance of the tunnel. The conductive sheet I 402 is horizontally slidably connected in the housing 401. The left end of the elastic member 404 is welded to the conductive sheet I 402, and the right end of the elastic member 404 is welded to the inner wall of the housing 401. There are four elastic members 404, which are distributed at the four corners of the conductive sheet I 402, so as to ensure that the elastic member 404 applies a balanced pulling force to the conductive sheet I 402. In addition, the conductive sheet II 403 is welded in the housing 401, and the conductive sheet II 403 is arranged opposite to the guide sheet I, and the conductive sheet II 403 is located on the side of the guide sheet I away from the elastic member 404.

[0034] The control component includes a trigger rope 6 and a protection tube 7 for protecting the trigger rope 6. The protection tube 7 can be a flexible tube made of plastic. In this way, when the tunnel has a curve, the protection tube 7 can be set in contact with the side wall of the tunnel. The protection tube 7 is arranged in the length direction of the tunnel. The end of the protection tube 7 close to the outer shell 401 is connected to the interior of the outer shell 401. A plurality of exposure holes 701 are opened axially on the tube wall of the protection tube 7. In this embodiment, the spacing between two adjacent exposure holes 701 is 1m. Of course, two adjacent exposure holes 701 can be arbitrarily arranged according to actual needs. One end of the trigger rope 6 is fixedly connected to the conductive sheet I 402, and the other end of the trigger rope 6 passes through the end of the protection tube 7 away from the outer shell 401 and is fixed outside the protection tube 7. The conductive sheet I 402 contacts the conductive sheet II 403 under the pull of the trigger rope 6, the first switch 4 is closed, the series circuit is closed (on the premise that the second switch 2 is closed), and the alarm 3 is powered on. Combined with Figure 4 As shown, a pull rope 8 is provided at the exposure hole 701, one end of the pull rope 8 is connected to the trigger rope 6 in the protection tube 7, and the other end of the pull rope 8 is connected to a pull ring 9. In addition, a plurality of radial rods 10 corresponding to the exposure holes 701 are welded on the protection tube 7 so that the pull rope 8 can be wound and bound on the radial rods 10. A luminous coating 11 is provided on the outer wall of the protection tube 7 at the exposure hole 701. The luminous coating 11 emits luminous light in dim light, so that personnel can quickly locate the exposure hole 701 and quickly find the pull rope 8. The protection tube 7 includes a plurality of protection tube segments 710, and two adjacent protection tube segments 710 are connected by a connecting structure. In this embodiment, the connecting structure includes a flange 12 and a connecting bolt 13. The flange 12 is fixedly connected to the two ends of the protection tube segment 710, and a connecting hole for the connecting bolt 13 to pass through is opened on the flange 12. In this way, the flanges 12 of two adjacent protection tube segments 710 are aligned, and the connecting bolts 13 pass through the connecting holes of the flanges 12 to connect the two flanges 12, thereby connecting the two adjacent protection tube segments 710. In addition, after the end of the trigger rope 6 away from the housing 401 passes through the end of the protection tube 7 away from the housing 401, it can pass through the connecting hole of the flange 12 and be tied with a slipknot, thereby achieving the fixation of the end of the trigger rope 6 away from the housing 401.

[0035] In actual use, the second switch 2 is in a normally closed state. Since the protection tube 7 is arranged along the length of the tunnel, and the protection tube 7 is designed with an exposure hole 701 and a pull rope 8 (i.e., a manual alarm point) every 1 m, when the inspection personnel inspect the tunnel and find a dangerous situation, they select an exposure hole 701 nearby, grab the pull ring 9 corresponding to the exposure hole 701 and pull it outward. Through the action of the pull rope 8, the trigger rope 6 in the protection tube 7 is pulled outward, and the trigger rope 6 is tightened to pull the conductive sheet I 402 to slide to the left. The conductive sheet I 402 gradually approaches the conductive sheet II 403 and finally contacts the conductive sheet II 403. The first switch 4 is closed, the series connection is closed, and all the alarms 3 in the length direction of the tunnel are powered on and work to sound an alarm, warning the personnel in the tunnel to evacuate outside the tunnel. Moreover, after the inspection personnel pull out the pull rope 8, the pull rope 8 is wound and bound to the radial rod 10 so that the inspection personnel can leave the tunnel. In this way, when the inspection personnel find dangerous situations during the inspection in the tunnel, they can manually alarm in time to ensure that the personnel in the tunnel are evacuated in time, eliminating the potential safety hazard that the inspection personnel cannot manually alarm in time and the evacuation of personnel cannot be carried out in time. After all the personnel in the tunnel are evacuated to the outside of the tunnel, the second switch 2 is disconnected, and the alarm 3 is powered off and no longer sounds an alarm.

[0036] In addition, in this embodiment, since the protection pipe 7 is formed by connecting the protection pipe segments 710, as the tunnel face excavation work proceeds, a new protection pipe segment 710 can be connected to the original protection pipe 7, thereby extending the protection pipe 7, and then laying a new manual alarm point in the newly added tunnel space (the protection pipe segment 710 has more than one exposure hole 701). Moreover, the protection pipe 7 can be split into several protection pipe segments 710, which is more convenient for storage.

[0037] Embodiment 2

[0038] The difference between this embodiment and the first embodiment is that: Figure 5 As shown, the connection structure in this embodiment is different from the connection structure in the first embodiment. The connection structure in this embodiment includes an internal thread connector 14 and an external thread connector 15 that are threaded together. The internal thread connector 14 is fixedly connected to one end of the protection tube segment 710, and the external thread connector 15 is fixedly connected to the other end of the protection tube segment 710. In addition, the internal thread connector 14 or the external thread connector 15 at the end of the protection tube 7 away from the housing 401 is threadedly connected with a cover 16, and a through hole is provided on the cover 16 for the trigger rope 6 to pass through. In this embodiment, the end of the protection tube 7 away from the housing 401 is the external thread connector 15.

[0039] In this embodiment, the connection between two adjacent protection tube segments 710 is achieved by threading the internal thread connector 14 and the external thread connector 15. In addition, the end of the trigger rope 6 away from the housing 401 passes through the through hole on the cover 16 and then is tied with a slipknot, so as to prevent the trigger rope 6 from retreating. Moreover, the cover 16 can be removed from the external thread connector 15 by rotating. Compared with the first embodiment, the extension work efficiency of the protection tube 7 in this embodiment is higher.

[0040] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model. The specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A one-button alarm system for a tunnel project, comprising a power supply, a plurality of alarms arranged along the length of the tunnel, and a first switch for controlling the operation of the alarms, wherein the power supply, the first switch and the plurality of alarms form a series circuit, and the system is characterized in that: It also includes a control component for controlling the closing / opening of the first switch; the first switch includes a shell, a conductive sheet I, a conductive sheet II and an elastic member, the conductive sheet I is horizontally slidably connected in the shell, and one end of the elastic member is connected to the conductive sheet I, the other end of the elastic member is connected to the inner wall of the shell, and the conductive sheet II is fixedly connected in the shell; the control component includes a trigger rope and a protection tube for protecting the trigger rope, the protection tube is arranged along the length direction of the tunnel, one end of the protection tube is connected to the inside of the shell, a plurality of exposure holes are axially opened on the tube wall of the protection tube, one end of the trigger rope is fixedly connected to the conductive sheet I, the other end of the trigger rope passes through the protection tube away from one end of the first switch and is fixed outside the protection tube, the conductive sheet I contacts the conductive sheet II under the pulling of the trigger rope, and the first switch is closed.

2. The one-button alarm system for tunnel engineering according to claim 1 is characterized in that: A pull rope is provided at the exposure hole, one end of the pull rope is connected to the trigger rope in the protection tube, and the other end of the pull rope is located outside the protection tube.

3. The one-button alarm system for tunnel engineering according to claim 2 is characterized in that: One end of the pull rope outside the protection tube is connected with a pull ring.

4. The one-button alarm system for tunnel engineering according to claim 2 or 3, characterized in that: The protection tube is provided with a plurality of radial rods corresponding to the exposure holes.

5. The one-button alarm system for tunnel engineering according to claim 1 is characterized in that: The protection pipe comprises a plurality of protection pipe segments, and two adjacent protection pipe segments are connected via a connecting structure.

6. The one-button alarm system for tunnel engineering according to claim 5 is characterized in that: The connection structure comprises a flange and connection bolts. The flange is fixedly connected to the two ends of the protection pipe segment, and a connection hole for the connection bolt to penetrate is opened on the flange.

7. The one-button alarm system for tunnel engineering according to claim 5, characterized in that: The connection structure comprises an internal threaded connector and an external threaded connector that are threadedly matched. The internal threaded connector is fixedly connected to one end of the protection pipe segment, and the external threaded connector is fixedly connected to the other end of the protection pipe segment.

8. The one-button alarm system for tunnel engineering according to claim 7 is characterized in that: The internal thread type connector or the external thread type connector at one end of the protection tube away from the first switch is threadedly connected with a cover, and the cover is provided with a through hole for the trigger rope to pass through.

9. The one-button alarm system for tunnel engineering according to claim 1, characterized in that: A luminous coating is provided on the outer wall of the protection tube at the exposure hole.

10. The one-button alarm system for tunnel engineering according to claim 1, characterized in that: The system also includes a second switch, and the second switch, a power supply, the first switch and a plurality of alarms form a series circuit.

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