Automatic safety alarm device for construction hanging basket

Abstract

The utility model relates to the technical field of construction safety, in particular to an automatic safety alarm device for a construction hanging basket, which comprises an infrared sensor, a wire, a guide rail power supply, an alarm judgment module, an alarm and two guide rails, the infrared sensor is arranged at the bottom of the hanging basket, the wire is arranged on the safety rope, the two ends of the wire are connected with the two hooks at the two ends of the safety rope respectively, the guide rail power source, the alarm judgment module and the alarm are arranged on the hanging basket, the two guide rails are arranged on the two sides of the hanging basket respectively, and the guide rail power source is electrically connected with the guide rails. And the alarm judgment module is electrically connected with the alarm and the infrared sensor respectively and is electrically connected between the guide rail power supply and the guide rail. According to the invention, the safety risk of constructors during construction can be reduced.

Description

Technical Field

[0001] The present application relates to the field of construction safety technology, and in particular to an automatic safety alarm device for a construction hanging basket. Background Art

[0002] During construction, hanging baskets are often used for aerial work. To ensure the safety of construction workers and avoid falling accidents, construction workers in the hanging baskets are required to buckle their safety belts to the hanging baskets. However, some construction workers have low safety awareness and do not buckle their safety belts to the hanging baskets during construction, or forget to buckle their safety belts to the hanging baskets, which increases the safety risks of construction workers during construction. Utility Model Content

[0003] In order to help reduce the safety risks of construction workers during construction, the present application provides an automatic safety alarm device for a construction hanging basket.

[0004] The automatic safety alarm device for a construction hanging basket provided in this application adopts the following technical solution:

[0005] An automatic safety alarm device for a construction hanging basket, comprising an infrared sensor, a wire, a guide rail power supply, an alarm judgment module, an alarm and two guide rails;

[0006] The infrared sensor is arranged at the bottom of the hanging basket, the wire is arranged on the safety rope and the two ends are respectively connected to the two hooks at the two ends of the safety rope, the guide rail power supply, the alarm judgment module, and the alarm are arranged on the hanging basket, the two guide rails are respectively arranged on both sides of the hanging basket, and the guide rail power supply is electrically connected to the guide rail;

[0007] The alarm determination module is electrically connected to the alarm and the infrared sensor respectively, and is electrically connected between the guide rail power supply and the guide rail.

[0008] By adopting the above technical solution, the hanging basket gradually rises during aerial work, and the infrared transmitting end of the infrared sensor transmits infrared rays to the ground and then reflects to the infrared receiving end of the infrared sensor. When the distance between the hanging basket and the ground does not exceed the set value, the infrared receiving end of the infrared sensor receives the reflected infrared rays, and then outputs a high level to the alarm judgment module. When the height of the hanging basket from the ground exceeds the set value, the infrared receiving end of the infrared sensor will no longer receive the reflected infrared rays, or the received infrared rays are weaker than the threshold, and the infrared sensor outputs a low level at this time. The two rails electrically connected to the rail power supply form positive and negative pole openings, and when the two hooks are respectively hung on the two rails, the two rails are electrically conductive under the connection of the wires. After that, the alarm judgment module can control the alarm to alarm when the height of the hanging basket reaches a certain height and the two hooks are not respectively hung on the two rails, so as to realize the system for construction personnel, thereby helping to reduce the safety risks of construction personnel during construction.

[0009] Optionally, the alarm determination module includes a first reference voltage unit, a first comparison unit, a NOT gate, an XOR gate, a voltage dividing unit, a second reference voltage unit and a second comparison unit;

[0010] The first reference voltage unit and the infrared sensor are electrically connected to two input terminals of the first comparison unit respectively, the output terminal of the first comparison unit is electrically connected to the input terminal of the NOT gate, and the output terminal of the NOT gate is electrically connected to one of the input terminals of the XOR gate;

[0011] The voltage divider unit and the second reference voltage unit are electrically connected to two input terminals of the second comparison unit respectively, the output terminal of the second comparison unit is electrically connected to another input terminal of the XOR gate; the alarm is electrically connected to the output terminal of the XOR gate.

[0012] By adopting the above technical scheme, when the hanging basket rises to a certain height, the output end of the infrared sensor outputs a low level, and at this time, the output end of the first comparison unit also outputs a low level, and then outputs a low level to the NOT gate, and finally inputs the XOR gate with a high level. At this time, if the construction personnel do not hang the hook on the guide rail, the circuit where the guide rail is located is not turned on, and the output end of the voltage divider unit outputs a low level. At this time, the levels of the two input ends of the XOR gate are different, and the output end of the XOR gate outputs a high level, and then the alarm can alarm, thereby realizing the reminder of the construction personnel, so it helps to reduce the safety risks of the construction personnel during construction. If the construction personnel hang the hook on the guide rail, the levels of the two input ends of the XOR gate are both high levels, and then the alarm stops working. When the hanging basket is on the ground or at a low height, the output end of the infrared sensor outputs a high level, and after the NOT gate, it outputs a low level to the XOR gate. At this time, even if the construction personnel enter the hanging basket without hanging the hook of the safety belt, the alarm will not be triggered.

[0013] Optionally, the alarm includes an alarm light and an electronic horn electrically connected to the output end of the XOR gate respectively.

[0014] By adopting the above technical solution, the alarm light can emit an alarm light, the electronic horn can emit an alarm sound, and the alarm light and the electronic horn are connected in parallel to the alarm judgment module. When any one of the alarm light and the electronic horn fails, the other can work normally, thereby reducing the possibility of alarm failure.

[0015] Optionally, the alarm determination module further includes a delay unit, and the delay unit is connected in series between the first comparison unit and the NOT gate.

[0016] By adopting the above technical solution, the delay unit can delay confirmation of the level sent by the first comparison unit to improve the accuracy of high and low level judgment.

[0017] Optionally, both the first comparison unit and the second comparison unit are comparators.

[0018] By adopting the above technical solution, the comparator is more common and the implementation cost can be effectively reduced.

[0019] Optionally, the voltage dividing unit uses a voltage dividing resistor connected in series between the guide rail and the guide rail power supply.

[0020] By adopting the above technical solution, the voltage divider resistor is relatively common and the implementation cost can be effectively reduced.

[0021] Optionally, the first reference voltage unit includes a resistor R1 and a resistor R2 connected in series, the resistor R1 and the resistor R2 are electrically connected to the input end of the first comparison unit, one end of the resistor R1 away from the resistor R2 is connected to the output voltage, and one end of the resistor R2 away from the resistor R1 is grounded.

[0022] By adopting the above technical solution, the resistor R1 and the resistor R2 connected in series can provide a first reference voltage for the infrared sensor.

[0023] Optionally, the second reference voltage unit includes a resistor R3 and a resistor R4 connected in series, the resistor R3 and the resistor R4 are electrically connected to the input end of the second comparison unit, one end of the resistor R3 away from the resistor R4 is connected to the output voltage, and one end of the resistor R4 away from the resistor R3 is grounded.

[0024] By adopting the above technical solution, the resistor R3 and the resistor R4 connected in series can provide a second reference voltage for the voltage dividing unit.

[0025] To sum up, the beneficial technical effects included in this application are as follows: when the hanging basket rises to a certain height, through the cooperation of infrared sensors, alarms, wires, two guide rails, guide rail power supplies, and alarm judgment modules, it is possible to remind construction workers of their high-altitude operations, which helps reduce safety risks for construction workers during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of a circuit according to an embodiment of the present application.

[0027] Explanation of the reference numerals: 1. infrared sensor; 2. alarm; 21. alarm light; 22. electronic horn; 3. first reference voltage unit; 4. first comparison unit; 5. delay unit; 6. voltage divider unit; 7. second reference voltage unit; 8. second comparison unit. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] The embodiment of the present application discloses an automatic safety alarm device for a construction hanging basket.

[0030] Reference Figure 1 The automatic safety alarm device for the construction hanging basket includes an infrared sensor 1, a wire, two guide rails, a guide rail power supply, an alarm judgment module and an alarm 2.

[0031] The infrared sensor 1 is fixedly connected to the bottom of the hanging basket, the wire is fixedly connected to the safety rope of the safety belt, and the two ends of the wire are fixedly connected to the two hooks on the two ends of the safety rope. The two guide rails are fixedly connected to the two sides of the hanging basket, and the two hooks can be hung on the two guide rails respectively. The guide rail power supply is fixedly connected to the hanging basket, the guide rail power supply is electrically connected to the guide rail, and the guide rail power supply adopts a voltage of 12V, and the guide rail power supply can also adopt a voltage of 24V. The alarm judgment module is fixed on the hanging basket and is electrically connected to the infrared sensor 1, and is also electrically connected to the alarm 2, and is also electrically connected between the guide rail and the guide rail power supply.

[0032] When performing aerial work, construction workers enter the hanging basket, which gradually rises during the operation. The infrared transmitting end of the infrared sensor 1 transmits infrared rays to the ground and then reflects them to the infrared receiving end of the infrared sensor 1. When the distance between the hanging basket and the ground does not exceed the set value, the infrared receiving end of the infrared sensor 1 receives the reflected infrared rays and then outputs a high level to the alarm judgment module. When the height of the hanging basket from the ground exceeds the set value, the infrared receiving end of the infrared sensor 1 will no longer receive the reflected infrared rays, or the received infrared rays are weaker than the threshold, and the infrared sensor 1 outputs a low level at this time. The two rails electrically connected to the rail power supply form positive and negative pole openings, and when the two hooks are respectively hooked on the two rails, the two rails are electrically conductive under the connection of the wires. Afterwards, the alarm judgment module can control the alarm 2 to alarm when the height of the hanging basket reaches a certain height and the two hooks are not respectively hooked on the two rails, so as to realize the system for construction workers, thereby helping to reduce the safety risks of construction workers during construction.

[0033] Reference Figure 1 The alarm 2 includes an alarm light 21 and an electronic horn 22. The alarm light 21 can emit an alarm light, and the electronic horn 22 can emit an alarm sound. The alarm light 21 and the electronic horn 22 are connected in parallel to the alarm judgment module. When any one of the alarm light 21 and the electronic horn 22 fails, the other can work normally, thereby reducing the possibility of alarm failure.

[0034] Reference Figure 1 The alarm judgment module includes a first reference voltage unit 3, a first comparison unit 4, a delay unit 5, a NOT gate, an XOR gate, a voltage divider unit 6, a second reference voltage unit 7, and a second comparison unit 8. The output end of the first reference voltage unit 3 and the output end of the infrared sensor 1 are respectively electrically connected to the two input ends of the first comparison unit 4, the output end of the first comparison unit 4 is electrically connected to the input end of the delay unit 5, the output end of the delay unit 5 is electrically connected to the input end of the NOT gate, the output end of the NOT gate is electrically connected to one of the input ends of the XOR gate, the output end of the XOR gate is electrically connected to the alarm 2, that is, the output end of the XOR gate is connected in parallel with the alarm light 21 and the electronic horn 22. The voltage divider unit 6 is connected in series between the guide rail power supply and the guide rail, the output end of the voltage divider unit 6 and the output end of the second reference voltage unit 7 are respectively electrically connected to the two input ends of the second comparison unit 8, and the output end of the second comparison unit 8 is electrically connected to the other input end of the XOR gate.

[0035] Among them, the first comparison unit 4 and the second comparison unit 8 are both used as comparators, and the delay unit 5 is used as a delay circuit, a capacitor or a delay device. In the embodiment of the present application, a delay circuit is preferably used. There are many delay circuits in the prior art, which will not be described in detail here. The voltage divider unit 6 is used as a voltage divider resistor, which is connected in series between the guide rail and the guide rail power supply.

[0036] Reference Figure 1 The first reference voltage unit 3 includes a resistor R1 and a resistor R2, which are connected in series. The resistor R1 and the resistor R2 are electrically connected to the input end of the first comparison unit 4, and the end of the resistor R1 away from the resistor R2 is connected to the output voltage, and the end of the resistor R2 away from the resistor R1 is grounded, thereby providing a first reference voltage for the infrared sensor 1.

[0037] The second reference voltage unit 7 includes a resistor R3 and a resistor R4, which are connected in series. The resistors R3 and R4 are electrically connected to the input end of the second comparison unit 8, and one end of the resistor R3 away from the resistor R4 is connected to the output voltage, and one end of the resistor R4 away from the resistor R3 is grounded, thereby providing a second reference voltage for the voltage divider unit 6.

[0038] The implementation principle of the automatic safety alarm device for a construction hanging basket in the embodiment of the present application is as follows: when the hanging basket rises to a certain height, the output end of the infrared sensor 1 outputs a low level, and at this time, the output end of the first comparison unit 4 also outputs a low level, and after confirmation by the delay unit 5, the low level is output to the NOT gate, and finally input to the XOR gate with a high level. At this time, if the construction personnel do not hang the hook on the guide rail, the circuit where the guide rail is located is not turned on, and the output end of the voltage divider unit 6 outputs a low level. At this time, the two input ends of the XOR gate have different levels, and the output end of the XOR gate outputs a high level, and then the alarm 2 can alarm, thereby realizing a reminder to the construction personnel, and thus helping to reduce the safety risks of the construction personnel during construction.

[0039] On the contrary, if the construction personnel hang the hook on the rail, the levels of the two input terminals of the XOR gate are both high, and the alarm 2 stops working. When the hanging basket is on the ground or at a low height, the output terminal of the infrared sensor 1 outputs a high level, and after the NOT gate, it outputs a low level to the XOR gate. At this time, even if the construction personnel enter the hanging basket without hanging the hook of the safety belt, the alarm 2 will not be triggered.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. An automatic safety alarm device for a construction hanging basket, characterized in that: It comprises an infrared sensor (1), a wire, a guide rail power supply, an alarm judgment module, an alarm (2) and two guide rails; The infrared sensor (1) is arranged at the bottom of the hanging basket, the wire is arranged on the safety rope and the two ends are respectively connected to the two hooks at the two ends of the safety rope, the guide rail power supply, the alarm judgment module, and the alarm (2) are arranged on the hanging basket, the two guide rails are respectively arranged on both sides of the hanging basket, and the guide rail power supply is electrically connected to the guide rail; The alarm judgment module is electrically connected to the alarm (2) and the infrared sensor (1) respectively, and is electrically connected between the guide rail power supply and the guide rail.

2. The automatic safety alarm device for a construction hanging basket according to claim 1 is characterized in that: The alarm determination module comprises a first reference voltage unit (3), a first comparison unit (4), a NOT gate, an XOR gate, a voltage dividing unit (6), a second reference voltage unit (7) and a second comparison unit (8); The first reference voltage unit (3) and the infrared sensor (1) are electrically connected to two input terminals of the first comparison unit (4) respectively, the output terminal of the first comparison unit (4) is electrically connected to the input terminal of the NOT gate, and the output terminal of the NOT gate is electrically connected to one of the input terminals of the XOR gate; The voltage dividing unit (6) and the second reference voltage unit (7) are electrically connected to the two input terminals of the second comparison unit (8) respectively; the output terminal of the second comparison unit (8) is electrically connected to the other input terminal of the XOR gate; and the alarm (2) is electrically connected to the output terminal of the XOR gate.

3. The automatic safety alarm device for a construction hanging basket according to claim 2 is characterized in that: The alarm device (2) comprises an alarm light (21) and an electronic horn (22) which are electrically connected to the output ends of the XOR gate, respectively.

4. The automatic safety alarm device for a construction hanging basket according to claim 2 is characterized in that: The alarm judgment module further comprises a delay unit (5), wherein the delay unit (5) is connected in series between the first comparison unit (4) and the NOT gate.

5. The automatic safety alarm device for a construction hanging basket according to claim 4 is characterized in that: The first comparison unit (4) and the second comparison unit (8) are both comparators.

6. The automatic safety alarm device for a construction hanging basket according to claim 4 is characterized in that: The voltage dividing unit (6) adopts a voltage dividing resistor connected in series between the guide rail and the guide rail power supply.

7. The automatic safety alarm device for a construction hanging basket according to claim 4 is characterized in that: The first reference voltage unit (3) comprises a resistor R1 and a resistor R2 connected in series, the resistor R1 and the resistor R2 are electrically connected to the input end of the first comparison unit (4), one end of the resistor R1 away from the resistor R2 is connected to the output voltage, and one end of the resistor R2 away from the resistor R1 is grounded.

8. The automatic safety alarm device for a construction hanging basket according to claim 4 is characterized in that: The second reference voltage unit (7) comprises a resistor R3 and a resistor R4 connected in series, wherein the resistor R3 and the resistor R4 are electrically connected to the input end of the second comparison unit (8), an end of the resistor R3 away from the resistor R4 is connected to the output voltage, and an end of the resistor R4 away from the resistor R3 is grounded.

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