Safety monitoring device for airport taxiway notice board

Abstract

An airport taxiway signboard safety monitoring device comprises a box body detection module, the box body detection module comprises a rotary pressure regulating piece, a connecting piece, a shell, a bottom cover, a microswitch and an element fixing piece, the interior of the shell is hollow and used for containing elements, and the bottom cover and the microswitch are arranged at the bottom of the shell; the outer peripheral surface of one end of the rotary pressure regulating piece is provided with threads, and the other end of the rotary pressure regulating piece protrudes outwards in a direction perpendicular to the axis to form a limiting boss; the inner circumferential surface of the connecting piece is provided with threads, one end of the connecting piece is perpendicular to the axis and protrudes towards the outer side direction to form an abutting boss, the connecting piece abuts against the top of the shell through the abutting boss, and the rotary pressure adjusting piece is in threaded connection with the connecting piece; the element fixing piece is clamped at the bottom of the shell through the clamping boss, the microswitch is arranged in the clamping groove, and the bottom cover is located at the bottom of the microswitch and makes contact with a contact of the microswitch. And meanwhile, the maintenance working intensity of personnel is reduced.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a safety monitoring device for airport taxiway marking boards. Background Art

[0002] Signs are mainly used on runways and taxiways of civil aviation airports. They are used to mark the path, position and other runway information on the runway and taxiway, and are important visual aids to guide the movement of aircraft on the ground. Taking Changsha Airport as an example, there are 610 signs of various types, all of which are designed as Class II, with a wind resistance level of 322km / h.

[0003] With the expansion of airports and the operation of large aircraft, the wake vortex of large aircraft such as Boeing 747 is very large when taking off (the exit wind speed reaches 603km / h). During daily maintenance, maintenance personnel found that the fastening bolts connecting the signboard to the ground were exposed to the outdoors for a long time, and the impact of the aircraft takeoff vibration and wake vortex formed low-frequency vibration, which caused the bolts to loosen or even strip, resulting in the weakening of the wind resistance of the signboard and the risk of displacement. If the maintenance is not timely or the limit of the bolts is reached, the signboard will not be able to resist the wake vortex and be blown into the taxiway, causing the signboard box to be damaged, disintegrated, deformed, displaced, etc. Such a large number of signboards need to be maintained, which is also costly, time-consuming and labor-intensive for maintenance personnel. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the signboards are easily blown into the taxiway when a large aircraft takes off and the maintenance cost of the signboards is high, and to provide an airport taxiway signboard safety monitoring device that can automatically detect and actively warn.

[0005] The utility model solves the technical problem by adopting a technical solution, which is an airport taxiway sign safety monitoring device, comprising a sign body and a supporting flange, wherein the supporting flange is hollow inside and accommodates the loosening warning device, and the bottom ends of the supporting flange and the loosening warning device are located in the same horizontal plane, and the loosening warning device comprises a box detection module, a power supply module, and an alarm module;

[0006] The box detection module includes a rotary pressure regulating part, a connecting part, a shell, a bottom cover, a micro switch, a component fixing part, and a pressure sensor. The inside of the shell is hollow for accommodating components, and the bottom cover, the micro switch and the pressure sensor are arranged at the bottom of the shell;

[0007] The outer peripheral surface of one end of the rotary pressure regulating member has a thread, and the other end thereof is perpendicular to the axis and protrudes outwardly with a limiting boss;

[0008] The inner circumferential surface of the connecting piece has threads, and one end thereof is vertically and outwardly protruded with a contact boss, the connecting piece is abutted against the top of the housing through the contact boss, and the rotary pressure regulating piece is threadedly connected to the connecting piece;

[0009] One end of the component fixing part has a clamping boss protruding outwardly perpendicular to the axis, and the outer diameter of the other end is the same as the inner diameter of the housing, and the inner circumferential surface of the component fixing part has a clamping groove that matches the size of the micro switch to fix the micro switch; the component fixing part is clamped at the bottom of the housing through the clamping boss, the micro switch is arranged in the clamping groove, the bottom cover is located at the bottom of the micro switch and contacts the micro switch, and the pressure sensor is located at the bottom of the bottom cover and is in contact with the ground;

[0010] The power supply module is used to supply power to all components, and the alarm module is electrically connected to the box detection module and receives signals from the pressure sensor and the micro switch to generate an alarm.

[0011] Furthermore, a fixed hook is provided inside the element fixing piece, and the fixed hook blocks the movement of the micro switch.

[0012] Furthermore, one side of the clamping boss on the component fixing piece is internally recessed, and the inner diameter is the same as the outer diameter of the other side of the component fixing piece to form a step, and the micro switch is supported by the step when located in the clamping slot.

[0013] Furthermore, the micro switches are provided in four numbers and are evenly distributed around the circumference, and the fixed hooks are provided in pairs and four pairs are provided.

[0014] Furthermore, the alarm module includes an alarm buzzer and an alarm filament.

[0015] Furthermore, the shell is made of carbon fiber.

[0016] Furthermore, the pressure sensor is a thin film pressure sensor.

[0017] The utility model has the following beneficial technical effects:

[0018] This device reduces the probability of unsafe apron incidents caused by loosening of the ground bolts of the sign, ensures flight punctuality, and saves maintenance work for personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the main body of a signboard of an embodiment of the airport taxiway signboard safety monitoring device of the utility model;

[0020] Figure 2 yes Figure 1 Middle AA section view;

[0021] Figure 3 This is an exploded view of an embodiment of an airport taxiway sign safety monitoring device of the utility model;

[0022] Figure 4 The utility model is a cross-sectional view of an embodiment of a safety monitoring device for airport taxiway markings.

[0023] Description of reference numerals:

[0024] 1. Marking plate body; 2. Support flange; 3. Box detection module; 31. Rotating pressure regulating part; 311. Limiting boss; 312. Rotating groove; 32. Connecting part; 321. Abutting boss; 33. Housing; 34. Bottom cover; 35. Micro switch; 36. Component fixing part; 361. Snap-in boss; 362. Slot; 363. Hook; 37. Pressure sensor; 4. Power supply module; 5. Alarm module; 6. Handle; 61. Rotating boss. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Reference Figures 1 to 4 A plurality of supporting flanges 2 are fixedly connected to the bottom of the sign body 1. The supporting flanges 2 are connected to the bottom surface and are hollow inside. This embodiment includes a box detection module 3, a power supply module 4, and an alarm module 5. The box detection module 3 is arranged inside the hollow supporting flange 2, and the bottom surface of the box detection module 3 and the bottom surface of the supporting flange 2 are located on the same horizontal plane. The power supply module 4 is used to provide power to all components such as the sign. The alarm module 5 is connected to the box detection module 3 through a wire, and transmits a signal to the alarm module 5 for alarm when the box detection module 3 is triggered.

[0027] The box detection module 3 includes a rotary pressure regulating part 31, a connecting part 32, a shell 33, a bottom cover 34, a micro switch 35, a component fixing part 36, and a pressure sensor 37. The rotary pressure regulating part 31 and the connecting part 32 are arranged on the top of the shell 33, and the bottom cover 34, the micro switch 35, the component fixing part 36 and the pressure sensor 37 are arranged on the bottom of the shell 33. The pressure sensor 37 and the bottom surface of the flange are in the same plane.

[0028] The rotary pressure regulating member 31 and the connecting member 32 are circular in shape, wherein the outer peripheral surface of one end of the rotary pressure regulating member 31 has a thread, and the other end thereof protrudes outward perpendicularly to the axis with a limiting boss 311 to form a step.

[0029] The inner circumference of the connecting piece 32 has a thread, and one end thereof protrudes outward perpendicularly to the axis with an abutting boss 321 to form a step. The abutting boss 321 abuts against the top of the outer shell 33 to clamp the connecting piece 32. The rotating pressure regulating piece 31 is threadedly connected to the connecting piece 32. In addition, the rotating pressure regulating piece 31 has four rotating grooves 312 on one side close to the limiting boss 311. The rotating grooves 312 are circular and evenly distributed. The rotating pressure regulating piece 31 is rotated for pressure adjustment by a special handle 6. The handle 6 has a rotating boss 61 that matches the rotating groove 312. The handle 6 can adjust the rotating pressure regulating piece 31 to rotate until the abutting boss 321 and the limiting boss 311 abut against each other.

[0030] One end of the element fixing part 36 is protruded with a snap-fitting boss 361 in the outward direction perpendicular to the axis, and the outer diameter of the other end is the same as the inner diameter of the shell 33, so it is inserted into the inside of the shell 33. The outer peripheral surface of the element fixing part 36 forms an external step due to the existence of the snap-fitting boss 361, and the inner peripheral surface of the snap-fitting boss 361 is correspondingly recessed outward, so that its inner diameter is the same as the outer diameter of the other side of the element fixing part 36, thereby forming an internal step; the inner peripheral surface of the element fixing part 36 has a snap-fitting groove 362 that matches the size of the micro switch 35 to fix the micro switch 35, and the micro switch 35 abuts on the internal step; the element fixing part 36 is snapped to the bottom of the shell 33 through the snap-fitting boss 361, the micro switch 35 is set in the snap-fitting groove 362, the bottom cover 34 is located at the bottom of the micro switch 35 and contacts with the contact of the micro switch 35, and is in a contact but not triggered state; the pressure sensor 37 is set below the bottom cover 34, and the pressure sensor 37 is in contact with the ground and is set with a pressure value.

[0031] Four micro switches 35 are provided and evenly distributed in a circle, and the four micro switches 35 are connected in parallel with each other, and the fixed hooks 363 are provided in pairs and four pairs are provided. In this embodiment, the alarm module 5 includes an alarm buzzer and an alarm filament, which emits a bright light at night to remind the staff while emitting a sound. The shell 33 is made of carbon fiber material mainly because of its strong pressure bearing capacity and strong deformation resistance. The pressure sensor 37 is a thin film pressure sensor 37, and a circular large-diameter waterproof thin film pressure sensor 37 is used. On the one hand, it is adapted to the circular shell 33, and on the other hand, the large diameter can detect in all directions.

[0032] In addition, the panel on the main body of the sign adopts an open hinge, and the box body is fixed by adding locks on three sides. A travel switch is installed between the panel and the box body, and the travel switch detection value is set to 0.5 mm. If more than 2 locks on the panel fall off, or the distance between the door panel and the box body exceeds 1 mm, an alarm will be generated.

[0033] The implementation principle of the airport taxiway sign safety monitoring device in the embodiment of the utility model is as follows:

[0034] The diaphragm pressure sensor 37 is a first-level response that only monitors whether the pressure reaches the preset value. It mainly checks whether the bolts on the supporting flange 2 are loose. For example, the initial set pressure value of the diaphragm pressure sensor 37 is 50kg. When the bolts on the supporting flange 2 are loose, the pressure value of the diaphragm pressure sensor 37 will be too low, thereby triggering an alarm.

[0035] The micro switch 35 detects the fit between the flange and the cement floor and has a secondary response. For example, when the angle between the flange base and the horizontal plane is greater than 2° at any edge of the flange, that is, the stroke of the micro switch 35 exceeds 0.2 mm, the alarm state is triggered.

[0036] If the film pressure sensor 37 fails, the primary response will be abandoned and the micro switch 35 will belong to the secondary response. As long as the sign is tilted at any angle exceeding 2 degrees, the micro switch 35 will trigger an alarm.

[0037] The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto. Among them, the same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Therefore: All equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An airport taxiway sign safety monitoring device, comprising a sign body (1), a supporting flange (2) and a loosening warning device, characterized in that: The support flange (2) is hollow inside and accommodates the loosening warning device, and the bottom ends of the support flange (2) and the loosening warning device are located on the same horizontal plane. The loosening warning device comprises a box detection module (3), a power supply module (4), and an alarm module (5); The box detection module (3) comprises a rotary pressure regulating part (31), a connecting part (32), a shell (33), a bottom cover (34), a micro switch (35), a component fixing part (36), and a pressure sensor (37); the shell (33) is hollow inside for accommodating components; the bottom cover (34), the micro switch (35), and the pressure sensor (37) are arranged at the bottom of the shell (33); The outer peripheral surface of one end of the rotary pressure regulating member (31) is provided with a thread, and the other end thereof is provided with a limiting boss (311) protruding outward perpendicularly to the axis; The inner circumferential surface of the connecting piece (32) has threads, and one end thereof is provided with an abutting boss (321) protruding outward perpendicularly to the axis, the connecting piece (32) abuts against the top of the housing (33) via the abutting boss (321), and the rotary pressure regulating piece (31) is threadedly connected to the connecting piece (32); One end of the element fixing part (36) is provided with a clamping boss (361) protruding outward in a direction perpendicular to the axis, and the outer diameter of the other end is the same as the inner diameter of the housing (33), and the inner peripheral surface of the element fixing part (36) is provided with a clamping groove (362) that matches the size of the micro switch (35) to fix the micro switch (35); the element fixing part (36) is clamped on the bottom of the housing (33) through the clamping boss (361), the micro switch (35) is arranged in the clamping groove (362), the bottom cover (34) is located at the bottom of the micro switch (35) and contacts the contact of the micro switch (35), and the pressure sensor (37) is located at the bottom of the bottom cover (34) and is in contact with the ground; The power supply module (4) is used to supply power to all components, and the alarm module (5) is electrically connected to the box detection module (3) and receives signals from the pressure sensor (37) and the micro switch (35) to generate an alarm.

2. The airport taxiway sign safety monitoring device according to claim 1, characterized in that: The element fixing piece (36) has a fixing hook (363) inside, and the fixing hook (363) blocks the movement of the micro switch (35).

3. The airport taxiway sign safety monitoring device according to claim 1, characterized in that: One side of the clamping boss (361) on the element fixing piece (36) is internally recessed, and the inner diameter is the same as the outer diameter of the other side of the element fixing piece (36) to form a step, and the micro switch (35) is supported by the step when it is located in the clamping groove (362).

4. The airport taxiway sign safety monitoring device according to claim 2, characterized in that: The micro switches (35) are provided in four numbers and are evenly distributed around the circumference, and the fixed hooks (363) are provided in pairs, and four pairs are provided.

5. The airport taxiway sign safety monitoring device according to claim 1, characterized in that: The alarm module (5) comprises an alarm buzzer and an alarm filament.

6. The airport taxiway sign safety monitoring device according to claim 1, characterized in that: The material of the shell (33) is carbon fiber.

7. The airport taxiway sign safety monitoring device according to claim 1, characterized in that: The pressure sensor (37) is a thin film pressure sensor (37).

Images