Crack displacement monitoring alarm

Abstract

The utility model relates to the field of crack displacement monitoring alarms, in particular to a crack displacement monitoring alarm. Comprising a monitoring box, two L-shaped supporting frames are arranged on the monitoring box, the supporting frames are correspondingly arranged and are made of metal materials, a sensor is arranged between the two supporting frames, a controller, a storage battery and a control circuit board are arranged in the monitoring box, and a solar panel and an audible and visual alarm are arranged on the outer side of the monitoring box. The solar panel and the audible and visual alarm are respectively connected with the storage battery and the control circuit board in the monitoring box through electric wires, and the control circuit board is provided with a proximity switch PNP circuit, an audible and visual alarm circuit and an information submission system circuit. The device is low in manufacturing cost, high in cost performance, light and easy to install and easy to install, and local and remote double alarms can be achieved when earth surface crack displacement occurs.

Description

Technical Field

[0001] The utility model relates to the field of crack displacement monitoring alarms, in particular to a crack displacement monitoring alarm. Background Art

[0002] Expressways are the main arteries of national transportation, and the safety and stability of expressways are the guarantee of people's life safety. Karst landforms have large elevation differences and complex geological conditions. After the expressway is built and opened to traffic, the slopes, roadbeds, and pavements are faced with problems such as landslides, collapses, and soft soil. Especially under the scouring of heavy rain, the excavated and filled soil will become soft. Once there are many cracks, the slopes, roadbeds, and pavements are prone to landslides or collapses, resulting in varying degrees of casualties, property losses, and traffic congestion.

[0003] Therefore, it is particularly important to monitor cracks in slopes, pavements, and roadbeds. Traditional crack monitoring mainly relies on regular inspections by humans and equipment, but manual inspections have shortcomings such as low efficiency and large environmental impact. By developing a crack displacement monitoring alarm and real-time monitoring of surface displacement of cracks, it can effectively solve the problems of long distances and inconvenience of nighttime inspections in manual inspections, further improve monitoring efficiency, and ensure that when abnormal conditions are found in cracks, timely intervention by personnel, road closures, and other measures are taken to eliminate safety hazards in the bud.

[0004] Therefore, it is particularly important to design a crack displacement monitoring alarm that can automatically, accurately and in real time monitor the surface displacement of cracks, and send monitoring signals to staff in a timely manner to help them immediately understand the on-site situation and take corresponding protective measures to ensure safety. Utility Model Content

[0005] The present application provides a crack displacement monitoring alarm, which adopts the following technical solution:

[0006] A crack displacement monitoring alarm comprises a monitoring box, on which are arranged two L-shaped support frames, which are arranged correspondingly and are made of metal material, a sensor is arranged between the two support frames, a controller, a battery, and a control circuit board are arranged in the monitoring box, a solar panel and an audible and visual alarm are arranged on the outside of the monitoring box, the solar panel and the audible and visual alarm are respectively connected to the battery and the control circuit board in the monitoring box through electric wires, and a proximity switch PNP circuit, an audible and visual alarm circuit and an information reporting system circuit are arranged on the control circuit board.

[0007] Optionally, a thermal overload relay, a proximity switch PNP and an intermediate relay are provided on the control circuit board, and the battery output voltage is 24V.

[0008] Optionally, a normally closed point and an audible and visual alarm are provided on the audible and visual alarm circuit.

[0009] Optionally, the information reporting system circuit is provided with a normally open point B, a normally open point A and a DC transformer.

[0010] Optionally, the intermediate relay controls the opening and closing of the normally closed point, the normally open point B and the normally open point A.

[0011] Optionally, when the sensor detects that the crack has changed or the crack distance is greater than a set value, the sensor vibrates the two support frames to generate a magnetic field. The magnetic field generated by the sensor puts the proximity switch PNP in an open state. The proximity switch PNP connects the intermediate relay circuit, and the intermediate relay is energized to start working. The intermediate relay controls the normally closed point to open, and the sound and light alarm circuit is disconnected.

[0012] Optionally, the normally open point B and the normally open point A are in a closed state at this time, the information reporting system circuit is connected as a whole, the DC transformer converts the circuit 25V voltage into 5V and transmits it to the smartphone network controller, and the smartphone network controller sends the signal to the platform and the corresponding smartphone staff.

[0013] Optionally, the sensor is a PNP type sensor normally open type.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the gap distance change between the cracks is monitored by a PNP type sensor (normally open type). When the distance between the cracks is monitored to change and the distance is greater than a certain value, the vibration of the sensor generates a magnetic field and is converted into a switch signal. The switch signal triggers the intermediate relay to work, and the sound and light alarm is controlled by the normally closed point of the intermediate relay. The switch signal triggers the intermediate relay to work, and the information reporting system is controlled by the normally open point of the intermediate relay. The information reporting device judges the external power supply status by monitoring the voltage converted from the power supply to the controller, and transmits it to the platform through the smart phone network controller to notify the staff. The device has low production cost, high cost performance, is light and simple, and is easy to install. It can be displaced in the surface cracks, and can alarm locally and remotely. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0016] Figure 1 This is a structural diagram of an overall device of a crack displacement monitoring alarm of the utility model.

[0017] Figure 2 The utility model is a structural diagram of a crack displacement monitoring alarm.

[0018] Figure 3 The utility model is a circuit diagram of a crack displacement monitoring alarm when in normal use.

[0019] Figure 4 The utility model discloses an alarm circuit diagram when a crack displacement monitoring alarm is used.

[0020] In the figure: 1- monitoring box, 101- support frame, 102- sensor, 103- smart phone network controller, 104- intermediate relay, 105- DC transformer, 106- thermal overload relay, 107- normally closed point, 108- normally open point A, 109- normally open point B, 110- proximity switch PNP, 2- sound and light alarm, 3- solar panel, 4- keyhole, 5- wires, 6- sensor wires. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The embodiment of the utility model provides a crack displacement monitoring alarm.

[0025] like Figure 1-3 As shown, a crack displacement monitoring alarm includes a monitoring box 1, on which two L-shaped support frames 101 are arranged correspondingly, and the support frames 101 are made of metal. A sensor 102 is arranged between the two support frames 101, and the sensor 102 is a PNP type sensor (normally open type). The PNP type sensor (normally open type) can monitor the position of an object and never determine the position size between cracks. A sensor wire 6 is arranged on one side of the sensor 102, and the sensor wire 6 is connected to the battery in the monitoring box 1. A foldable cover is arranged on the surface of the monitoring box 1, and a keyhole 4 is arranged on the cover. The cover can be opened by opening the keyhole 4. A controller, a battery, and a control circuit board are arranged in the monitoring box 1. The battery provides power for the entire monitoring box 1. A solar panel 3 and an audible and visual alarm 2 are arranged on the outside of the monitoring box 1. The solar panel 3 and the audible and visual alarm 2 are respectively connected to the battery and the control circuit board in the monitoring box 1 through a wire 5. The solar panel 3 can absorb sunlight and convert solar energy into electrical energy and store it in the battery to provide power for the entire alarm. The upper part of the sound and light alarm 2 is an alarm light, and the lower part is a speaker. There is also a knob behind the speaker, and the knob can adjust the volume of the speaker. When the sensor 102 detects that the crack has changed or the distance of the crack is greater than the set value, the sensor 102 will vibrate and generate a magnetic field on the two support frames 101.

[0026] like Figure 3 This is the circuit diagram of the monitoring box 1 under normal conditions. Figure 3 As shown, the positive and negative poles of the power line of the control circuit board are set on the battery, the output voltage of the battery is 24V, and a thermal overload relay 106 is set on the positive line. The thermal overload relay 106 can automatically disconnect the circuit when overloaded to protect the electrical equipment. When the current is too large (exceeding the set value), the power supply of the controlled circuit and the protected equipment is cut off. A proximity switch PNP110 is set on the positive line where the thermal overload relay 106 is located, and an intermediate relay 104 is also set in parallel on the circuit. One end of the intermediate relay 104 is connected to the proximity switch PNP110. The proximity switch PNP110 controls the start of the proximity switch PNP110 by receiving the magnetic field generated by the vibration of the sensor 102.

[0027] The entire control circuit board circuit is also provided with a sound and light alarm 2 circuit, and a normally closed point 107 is provided on the sound and light alarm 2 circuit. The entire circuit is also provided with an information reporting system circuit, and a normally open point B109 is provided on the information reporting system circuit. The normally open point B109 is provided on the positive and negative poles of the circuit. There are two normally open points B109, and both are opened and closed at the same time. A DC transformer 105 is provided below the normally open point B109, and the DC transformer 105 can convert the 25V voltage of the entire circuit into 5V. The information reporting system circuit is provided with a smart phone network controller 103, and the smart phone network controller can send a signal to the platform and the corresponding smart phone when powered on, so that the staff can receive the message in the first time. A normally open point A108 is provided on the negative pole side of the smart phone network controller 103. Normally closed point 107, normally open point B109 and normally open point A108 are all controlled by the intermediate relay 104. When the intermediate relay 104 is not activated or does not receive a control signal, the normally closed point 107 remains in a closed state to form an electrical connection. The normally open point B109 and the normally open point A108 are in an open state when the intermediate relay 104 is not energized, and become closed when the coil is energized.

[0028] Figure 3 In order to monitor the circuit connection diagram of each control unit in the alarm under normal circumstances, the battery provides 24V voltage to the overall circuit, and the current forms a path through the proximity switch PNP110. However, because the proximity switch PNP110 is now in a closed signal due to the magnetic field generated by the sensor vibration, the current cannot complete the flow through the intermediate relay 104 to form a complete path. Therefore, the intermediate relay 104 cannot work without current. At this time, the normally closed point 107 is in a closed state, and the sound and light alarm 2 circuit is powered on and illuminated. The normally open point B109 and the normally open point A108 are in an open and closed state, and cannot form a complete flow circuit.

[0029] Figure 4To monitor the alarm circuit connection diagram of each control unit in the alarm, when the sensor 102 detects that the crack has changed or the crack distance is greater than the set value, the sensor 102 will vibrate and generate a magnetic field on the two support frames 101. The magnetic field generated by the sensor makes the proximity switch PNP110 in an open state. The proximity switch PNP110 connects the circuit of the intermediate relay 104. The intermediate relay 104 is powered on and starts working. The intermediate relay 104 controls the normally closed point 107 to open. At this time, the circuit of the sound and light alarm 2 is disconnected and the backup power supply in the sound and light alarm 2 starts to emit sound and flash, reminding passing vehicles, and also facilitating the workers to quickly find the crack area. The normally open point B109 and the normally open point A108 are in a closed state at this time, the information reporting system circuit is connected as a whole, the DC transformer 105 converts the circuit 25V voltage into 5V and transmits it to the smart phone network controller 103, the smart phone network controller 103 sends the signal to the platform and the corresponding smart phone staff, and the staff receives the feedback and rushes to the alarm area to check the crack.

[0030] After the device is formed, it can be used to monitor the slopes, roadbeds, pavements and cracked structures along the highway. When installing, place the sensor 102 close to the crack, and set up the solar panel 3 and the sound and light alarm 2 on the side. The solar panel 3 absorbs sunlight and converts light energy into electrical energy to provide electrical energy for the entire alarm. When the sound and light alarm 2 detects that the distance of the crack is getting bigger, the light flashes and the sound is sounded to remind. When the surface crack moves, the local and remote dual alarms are triggered.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crack displacement monitoring alarm, characterized in that: The monitoring box (1) comprises two L-shaped support frames (101) arranged on the monitoring box (1), the support frames (101) being arranged in correspondence with each other, the support frames (101) being made of metal material, a sensor (102) being arranged between the two support frames (101), a controller, a storage battery, and a control circuit board being arranged in the monitoring box (1), a solar panel (3) and an audible and visual alarm (2) being arranged outside the monitoring box (1), the solar panel (3) and the audible and visual alarm (2) being connected to the storage battery and the control circuit board in the monitoring box (1) respectively through electric wires (5), and a proximity switch PNP (110) circuit, an audible and visual alarm (2) circuit, and an information reporting system circuit being arranged on the control circuit board.

2. A crack displacement monitoring alarm according to claim 1, characterized in that: A thermal overload relay (106), a proximity switch PNP (110) and an intermediate relay (104) are arranged on the control circuit board, and the battery output voltage is 24V.

3. A crack displacement monitoring alarm according to claim 2, characterized in that: A normally closed point (107) and the sound and light alarm (2) are provided on the circuit of the sound and light alarm (2).

4. A crack displacement monitoring alarm according to claim 3, characterized in that: The information reporting system circuit is provided with a normally open point B (109), a normally open point A (108) and a DC transformer (105).

5. A crack displacement monitoring alarm according to claim 4, characterized in that: The intermediate relay (104) controls the opening and closing of the normally closed point (107), the normally open point B (109) and the normally open point A (108).

6. A crack displacement monitoring alarm according to claim 5, characterized in that: When the sensor (102) detects that the crack has changed or the crack distance is greater than a set value, the sensor (102) vibrates on the two support frames (101) to generate a magnetic field. The magnetic field generated by the sensor causes the proximity switch PNP (110) to be in an open state. The proximity switch PNP (110) connects the circuit of the intermediate relay (104). The intermediate relay (104) is energized to start working. The intermediate relay (104) controls the normally closed point (107) to open, and the circuit of the sound and light alarm (2) is disconnected.

7. A crack displacement monitoring alarm according to claim 5, characterized in that: Normally open point B (109) and normally open point A (108) are in a closed state at this time, the information reporting system circuit is connected as a whole, the DC transformer (105) converts the circuit voltage of 25V into 5V and transmits it to the smartphone network controller (103), and the smartphone network controller (103) sends the signal to the platform and the staff of the corresponding smartphone.

8. The crack displacement monitoring alarm according to claim 1, characterized in that: The sensor (102) is a PNP type sensor, normally open.

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