Water immersion alarm system

Abstract

The utility model discloses a water immersion alarm system which comprises an alarm, the alarm is connected with a water immersion detector, the water immersion detector comprises a hollow guide cylinder, a floating piece is arranged in the guide cylinder, and the density of the floating piece is smaller than that of water, so that the floating piece can move in the guide cylinder when the water immersion detector is immersed in water. A conductive electric contact plate is arranged above the floating piece, conductive static contact plates are arranged above the conductive electric contact plate at intervals, and the free end of the conductive electric contact plate abuts against the floating piece in a natural state. When the water level exceeds a preset threshold value, the conductive static contact plate rotates to be in contact with the conductive static contact plate to form a circuit access, and the alarm is triggered to send out an alarm signal. Meanwhile, the alarm can also send alarm information to external electronic equipment through wireless signals, give an alarm to management personnel and timely inform the management personnel to carry out water immersion treatment, so that the first-aid repair speed is increased, the economic loss is avoided, and the safety of the underground confined space is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety protection, in particular to a water immersion alarm system. BACKGROUND

[0002] In the current heating system, secondary pipe network heat exchange station, fire pump house and water pump room and other facilities, due to space layout and actual demand, are often set in underground closed or semi-closed space. Such layout, although to a certain extent, optimizes the city space utilization, but also brings a series of potential safety hazards. First of all, these underground closed space often does not have the conditions of 24 hours personnel on duty, due to space limitation, personnel configuration and operation cost and other factors, it is difficult to realize all-weather artificial monitoring around these key facilities, which means that once the equipment fails or accident, it is difficult to be found and handled in the first time. More serious is that when the pipeline, water pump, valve and other key equipment are damaged due to aging, wear and tear or external factors, a large amount of water leakage may be caused, in the underground closed space, the leaked water cannot be quickly discharged, and it is easy to accumulate and submerge the equipment in a short time, which not only will cause direct economic loss of equipment, more importantly, it may further cause a series of serious secondary disasters. For example, electrical equipment is prone to short circuit in humid environment, which not only will damage the equipment itself, but also may cause fire and even explosion and other serious consequences. In addition, the ventilation condition in the underground closed space is usually poor, once there is flammable and explosive gas or material leakage, it is easy to form explosive mixture, further aggravating the safety risk.

[0003] Therefore, for these underground closed space heating system facilities, effective monitoring and early warning measures must be taken, which can monitor the running state of the equipment and the change of the surrounding environment in real time, and once the abnormal situation such as water level rise is detected, the system should immediately send out alarm signal, so that the relevant personnel can take measures to handle it quickly. The existing monitoring system generally relies on video monitoring, which usually has the problems of low automation degree and insufficient alarm accuracy, and this method not only is inefficient, and due to human error, it often cannot accurately judge the specific situation of water immersion. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of water immersion alarm system, can realize the real-time monitoring of water level anomaly, when water level exceeds preset threshold, conductive moving contact plate rotates to contact with conductive static contact plate and forms circuit passage, triggers alarm to send out alarm signal. At the same time, alarm can also send alarm information to external electronic equipment through wireless signal, alarms management personnel, informs management personnel to handle water immersion in time, improves the speed of repair, avoids economic loss, improves the safety of underground closed space.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a kind of water immersion alarm system, including alarm, the alarm is connected with water immersion detector, the water immersion detector includes hollow guide cylinder, floating element is equipped in guide cylinder, the density of the floating element is less than the density of water so that the floating element can move in the guide cylinder when the water immersion detector is immersed, the upper portion of the floating element is equipped with conductive moving contact plate, the fixed end of the conductive moving contact plate is hinged on the lateral wall of the guide cylinder, and the other end is free end, the upper portion of the conductive moving contact plate is equipped with conductive static contact plate at interval, the conductive static contact plate is fixedly connected on the lateral wall of guide cylinder, the free end of the conductive moving contact plate is abutted on floating element in natural state, the first interface of the alarm is connected with one end of the conductive static contact plate, and the second interface of the alarm is connected with the fixed end of the moving contact plate.

[0007] Preferably, the water immersion detector further comprises a base, the density of the base is greater than the density of water, the base comprises a bottom plate and a hollow protrusion connected thereto, the guide cylinder is fixedly connected within the protrusion and protrudes from the protrusion, first grooves are symmetrically provided on both sides of the protrusion along the width direction of the bottom plate, second grooves are symmetrically provided on both sides of the lower portion of the guide cylinder, and the first grooves correspond to the second grooves.

[0008] Preferably, first and second slots are symmetrically provided on the upper portion of the guide cylinder, and first and second rectangular slots are also symmetrically provided on the upper portion of the guide cylinder, so that the upper portion of the guide cylinder forms first, second, third and fourth convex portions.

[0009] Preferably, the fixed end of the conductive moving contact plate is accommodated in the first slot, and first pins are symmetrically provided on both sides of the fixed end, first mounting holes are respectively and symmetrically provided on the first and second convex portions, the first pins are inserted into and rotatable in the first mounting holes, and the free end is accommodated in the second slot.

[0010] Preferably, the conductive static contact plate is located directly above the conductive moving contact plate, one end of the conductive static contact plate is provided with a second pin, second mounting holes are respectively and symmetrically provided on the first and second convex portions, the second pin can be inserted into the second mounting holes, the other end of the conductive static contact plate is provided with a third pin, third mounting holes are respectively and symmetrically provided on the third and fourth convex portions, and the third pin can be inserted into the third mounting holes.

[0011] Preferably, a moving contact plate terminal is connected to the fixed end of the conductive moving contact plate, a static contact plate terminal is connected to the end of the conductive static contact plate corresponding to the free end of the conductive moving contact plate, the first interface is connected to the static contact plate terminal through a wire, and the second interface is connected to the moving contact plate terminal through a wire.

[0012] Preferably, the alarm is connected with an external power supply for supplying power to the alarm.

[0013] Preferably, the alarm is further provided with a third interface and a fourth interface, the third interface is connected with a negative pole of the external power supply through a wire, and the fourth interface is connected with a positive pole of the external power supply through a wire.

[0014] Preferably, the top of the alarm is provided with an antenna, and the alarm is internally provided with a signal converter to connect the alarm with signals of external electronic equipment.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. The water immersion alarm system provided by the utility model, when the water level exceeds the preset threshold, the free end of the conductive moving contact plate is tightly abutted on the conductive static contact plate, so that the alarm, the conductive static contact plate and the conductive moving contact plate form a conductive loop, the alarm sends an alarm call to the manager, the manager receives the alarm call and timely handles the water immersion, the signal connection between the alarm and external electronic equipment is realized, the signal transmission is safe and reliable, is not easy to be interfered by external environment, the manager realizes real-time monitoring on the water immersion alarm system, the repair speed is improved, economic loss is avoided, and the safety of the underground closed space is improved. Moreover, the alarm can be separately installed in an area with good mobile signal, suitable environmental temperature and humidity, the water immersion detector can be only installed in the area needing to be detected, and the length of the wire can be freely configured according to use requirements.

[0017] 2. The water immersion alarm system provided by the utility model realizes the opening of the alarm signal through mechanical action between the floating element, the conductive static contact plate and the conductive moving contact plate, does not cause jamming, false alarm and missed alarm, is not limited by temperature and humidity of the use environment, and is higher in reliability. In addition, the device converts water level information into displacement information of the floating element, converts the displacement information into an electric signal, converts the electric signal into a digital signal and sends the digital signal to the electronic equipment of the manager, the signal transmission is safe, reliable and rapid, a person does not need to be on duty for 24 hours, labor cost is saved, the safety and reliability of the alarm system are improved, and the alarm system is not influenced by human factors. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a structural schematic view of a water immersion alarm system in the utility model;

[0019] Fig. 2 Fig. 2 is an exploded structural schematic view of a water immersion detector of the water immersion alarm system in the utility model;

[0020] Fig. 3 Fig. 3 is a structural schematic view of the water immersion detector of the water immersion alarm system in the utility model.

[0021] In the figure: 1-alarm, 101-first interface, 102-second interface, 103-antenna, 104-third interface, 105-fourth interface;

[0022] 2-water immersion detector, 201-guide cylinder, 202-floating element, 203-base, 204-bottom plate, 205-protrusion, 206-first groove, 207-second groove, 208-first slot, 209-second slot, 210-first rectangular slot, 211-second rectangular slot, 212-first protrusion, 213-second protrusion, 214-third protrusion, 215-fourth protrusion, 216-fixed end, 217-free end, 218-first pin shaft, 219-first mounting hole, 220-conductive moving contact plate, 221-conductive static contact plate, 222-second pin shaft, 223-second mounting hole, 224-third pin shaft, 225-third mounting hole, 226-moving contact plate terminal, 227-static contact plate terminal;

[0023] 3-external power supply, 301-negative electrode, 302-positive electrode. DETAILED DESCRIPTION

[0024] The utility model provides a kind of water immersion alarm system, as shown in Figs. 1-3 Figure, including alarm 1, alarm 1 is connected with external power supply 3, and external power supply 3 is used to power alarm 1, and external power supply 3 is preferably 24V DC power supply.Alarm 1 is connected with water immersion detector 2, and water immersion detector 2 includes hollow guide cylinder 201, guide cylinder 201 is PVC material, not conductive and inner wall is smooth, floating element 202 is arranged in guide cylinder 201, and floating element 202 is preferably cylindrical body of not conductive rubber material, and the density of floating element 202 is less than the density of water so that floating element 202 can move in guide cylinder 201 when water immersion detector 2 is immersed.

[0025] The water immersion detector 2 comprises a base 203, the density of the base 203 is greater than the density of water, so that the water immersion detector 2 will not float even if it is submerged in water when it is immersed in water. In addition, the base 203 is made of stainless steel, which ensures that the base 203 has high strength and hardness, and is not easy to rust or corrode, reducing maintenance cost and time. The base 203 comprises a bottom plate 204 and a hollow protrusion 205 connected to each other, the guide cylinder 201 is fixedly connected in the protrusion 205 and protrudes from the protrusion 205, the two sides of the protrusion 205 are symmetrically provided with first grooves 206 along the width direction of the bottom plate 204, the lower part of the guide cylinder 201 is symmetrically provided with second grooves 207, and the first grooves 206 correspond to the second grooves 207. In this way, the floating member 202 in the guide cylinder 201 can be exposed, and the floating member 202 can be in full contact with water to generate sufficient buoyancy for the floating member 202. The upper part of the guide cylinder 201 is symmetrically provided with first and second slots 208 and 209, and the upper part of the guide cylinder 201 is also symmetrically provided with first and second rectangular grooves 210 and 211, so that the upper part of the guide cylinder 201 forms first, second, third and fourth convex parts 212, 213, 214 and 215, providing a connecting space for the conductive moving contact plate 220 and the conductive static contact plate 221 and the guide cylinder 201. Similarly, the first and second rectangular grooves 210 and 211 expose the floating member 202, so that the floating member 202 is in full contact with water, and the first and second slots 208 and 209 provide accommodation spaces for the conductive moving contact plate 220 and the conductive static contact plate 221.

[0026] The conductive moving contact plate 220 is arranged above the floating member 202, one end of the conductive moving contact plate 220 is a fixed end 216, the other end is a free end 217, the fixed end 216 of the conductive moving contact plate 220 is accommodated in the first slot 208, and the two sides of the fixed end 216 are symmetrically provided with first pin shafts 218, the first protruding part 212 and the second protruding part 213 are respectively and symmetrically provided with first mounting holes 219, the first pin shafts 218 are inserted into the first mounting holes 219 and can rotate in the first mounting holes 219, and the free end 217 is accommodated in the second slot 209, so that the conductive moving contact plate 220 can rotate around the first pin shafts 218 on the fixed end 216. The conductive static contact plate 221 is located directly above the conductive moving contact plate 220, one end of the conductive static contact plate 221 is provided with a second pin shaft 222, the first protruding part 212 and the second protruding part 213 are respectively and symmetrically provided with second mounting holes 223, the second pin shaft 222 can be inserted into the second mounting holes 223, the other end of the conductive static contact plate 221 is provided with a third pin shaft 224, the third protruding part 214 and the fourth protruding part 215 are respectively and symmetrically provided with third mounting holes 225, and the third pin shaft 224 can be inserted into the third mounting holes 225, so that both ends of the conductive static contact plate 221 are fixedly connected to the side wall of the guide cylinder 201. The material of the conductive static contact plate 221 and the conductive moving contact plate 220 is brass, which ensures the conductivity and corrosion resistance of the conductive static contact plate 221 and the conductive moving contact plate 220.

[0027] The fixed end 216 of the conductive moving contact plate 220 is connected with a moving contact plate terminal 226, and the end of the conductive static contact plate 221 corresponding to the free end 217 of the conductive moving contact plate 220 is connected with a static contact plate terminal 227, the first interface 101 of the alarm 1 is connected with the static contact plate terminal 227 through a wire, and the second interface 102 is connected with the moving contact plate terminal 226 through a wire. The free end 217 of the conductive moving contact plate 220 abuts against the floating member 202 in a natural state, that is, under the action of gravity, the free end 217 of the conductive moving contact plate 220 and the floating member 202 are in contact with each other, and the free end 217 of the conductive moving contact plate 220 is not in contact with the conductive static contact plate 221, so that the alarm 1, the conductive static contact plate 221 and the conductive moving contact plate 220 are in an open circuit state, and the alarm signal of the alarm 1 is not started. When the water immersion detector 2 is immersed in water, the floating member 202 will move upward due to the buoyancy of water, and under the guidance of the guide cylinder 201, the floating member 202 will lift the free end 217 of the conductive moving contact plate 220 upward, so that the free end 217 makes an upward overturning movement around the fixed end 216, when the water level exceeds a preset threshold, the free end 217 will be tightly abutted to the conductive static contact plate 221, and the alarm 1, the conductive static contact plate 221 and the conductive moving contact plate 220 form a conductive loop, and then the alarm signal of the alarm 1 is started. The device adopts the mechanical action between the floating member 202, the conductive static contact plate 221 and the conductive moving contact plate 220 to realize the starting of the alarm signal of the alarm 1, and will not cause jamming, false alarm and missed alarm, will not be limited by the temperature and humidity of the use environment, and has higher reliability.

[0028] The top of the alarm 1 is provided with an antenna 103, and the inside of the alarm 1 is provided with a signal converter (not shown), the antenna 103 is used for receiving or transmitting signals, and the signal converter converts the signals into a format suitable for display by external electronic equipment, in operation, the antenna 103 transmits the signals in the alarm 1 to external electronic equipment such as a mobile phone, a computer and the like in real time. The alarm 1 is preferably a telephone alarm, when the water level exceeds the preset threshold, the free end 217 of the conductive moving contact plate 220 is tightly abutted to the conductive static contact plate 221, so that the alarm 1, the conductive static contact plate 221 and the conductive moving contact plate 220 form a conductive loop, the alarm 1 sends an alarm call to the manager, the manager receives the alarm call in time to deal with the water immersion, realizes the signal connection between the alarm 1 and the external electronic equipment, and the signal transmission is safe and reliable, and is not easy to be disturbed by the external environment, realizes the real-time monitoring of the manager on the water immersion alarm system, improves the repair speed, avoids the economic loss, and improves the safety of the underground closed space. Moreover, the alarm 1 can be installed alone in an area with good mobile signal, suitable environment temperature and humidity, and only the water immersion detector 2 needs to be installed in the area to be detected, and the length of the wire is freely configured according to the use requirement. In addition, the device converts the water level information into displacement information of the floating member 202, then converts the displacement information into an electric signal, and then converts the electric signal into a digital signal and sends it to the electronic equipment of the manager, the signal transmission is safe, reliable and rapid, and it is not necessary to have a person on duty for 24 hours, which saves the labor cost, and is not affected by human factors, improves the safety and reliability of the alarm system.

[0029] The alarm 1 is provided with a third interface 104 and a fourth interface 105, the third interface 104 is connected with the negative pole 301 of the external power supply 3 through a wire, the fourth interface 105 is connected with the positive pole 302 of the external power supply 3 through a wire, and the electrical connection between the alarm 1 and the external power supply 3 is realized.

[0030] The water immersion alarm system provided by the utility model, in the specific application process, the third interface 104 of the alarm 1 is connected with the negative pole 301 of the external direct current 24V power supply, the fourth interface 105 is connected with the positive pole 302 of the external direct current 24V power supply, the alarm 1 is powered, and the voltage between the third interface 104 and the fourth interface 105 is direct current 24V, so as to ensure the safety of power utilization. The water immersion detector 2 is placed on the ground of the detection area, and the preset threshold of the water level is set in the alarm 1, at this time, the conductive moving contact plate 220 is in contact with the floating piece 202, and the conductive moving contact plate 220 and the conductive static contact plate 221 are in an open circuit state, when the detection area has water, with the increase of the water depth, the floating piece 202 will move upward under the action of the buoyancy of water, under the guidance and constraint of the guide cylinder 201, the floating piece 202 will lift the free end 217 of the conductive moving contact plate 220 upward, so that the free end 217 of the conductive moving contact plate 220 makes upward overturning movement around the fixed end 216, until the conductive moving contact plate 220 is in close contact with the conductive static contact plate 221, so that the conductive moving contact plate 220 and the conductive static contact plate 221 are in a conduction state, so that the alarm 1, the conductive static contact plate 221 and the conductive moving contact plate 220 form a conductive loop, at this time, the water level reaches the preset threshold, the signal will trigger the alarm signal of the alarm 1, through the conversion of the signal converter, the signal is sent to the mobile phone of the management personnel in the form of alarm telephone, and remote telephone alarm is realized.

[0031] It should be noted that the water immersion alarm system in the embodiment is not limited to the detection of the water level of water, and can also be applied to the detection of other liquids, when other liquids are detected, only the density of the floating piece 202 of the water immersion detector 2 is ensured to be less than the density of the detected liquid, and the density of the base 203 is ensured to be greater than the density of the detected liquid, so that the liquid level detection alarm of other detected liquids can be realized.

[0032] The utility model has applied specific examples to the principle and implementation mode of the utility model, and the above embodiment is only used for helping understanding the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will have the change place. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A water intrusion alarm system comprising an alarm, characterized in that: The alarm is connected with a water immersion detector, the water immersion detector comprises a hollow guide cylinder, a floating member is arranged in the guide cylinder, the density of the floating member is less than the density of water, so that the floating member can move in the guide cylinder when the water immersion detector is immersed in water, a conductive movable contact plate is arranged above the floating member, a fixed end of the conductive movable contact plate is hinged to a side wall of the guide cylinder, and the other end is a free end, a conductive static contact plate is arranged above the conductive movable contact plate in a spaced manner, the conductive static contact plate is fixedly connected to the side wall of the guide cylinder, the free end of the conductive movable contact plate abuts against the floating member in a natural state, a first interface of the alarm is connected with one end of the conductive static contact plate, and a second interface of the alarm is connected with the fixed end of the movable contact plate.

2. The water immersion alarm system of claim 1, wherein: The water immersion detector further comprises a base, the density of the base is greater than the density of water, the base comprises a bottom plate and a hollow protrusion connected with each other, the guide cylinder is fixedly connected in the protrusion and protrudes from the protrusion, first grooves are symmetrically arranged on both sides of the protrusion along the width direction of the bottom plate, and second grooves are symmetrically arranged on both sides of the lower part of the guide cylinder.

3. The water immersion alarm system of claim 1, wherein: First and second slots are symmetrically arranged on the upper part of the guide cylinder, and first and second rectangular slots are symmetrically arranged on the upper part of the guide cylinder, so that the upper part of the guide cylinder forms first, second, third and fourth convex parts.

4. The water immersion alarm system of claim 3, wherein: The fixed end of the conductive movable contact plate is contained in the first slot, and first pins are symmetrically arranged on both sides of the fixed end, first mounting holes are symmetrically arranged on the first and second convex parts respectively, the first pins are inserted into the first mounting holes and can rotate in the first mounting holes, and the free end is contained in the second slot.

5. The water immersion alarm system of claim 3, wherein: The conductive static contact plate is located directly above the conductive movable contact plate, one end of the conductive static contact plate is provided with a second pin, second mounting holes are symmetrically arranged on the first and second convex parts respectively, the second pin can be inserted into the second mounting holes, the other end of the conductive static contact plate is provided with a third pin, and third mounting holes are symmetrically arranged on the third and fourth convex parts respectively, the third pin can be inserted into the third mounting holes.

6. The water immersion alarm system of claim 1, wherein: The fixed end of the conductive movable contact plate is connected with a movable contact plate terminal, one end of the conductive static contact plate corresponding to the free end of the conductive movable contact plate is connected with a static contact plate terminal, the first interface is connected with the static contact plate terminal through a wire, and the second interface is connected with the movable contact plate terminal through a wire.

7. The water immersion warning system of claim 1, wherein: The alarm is connected with an external power supply, and the external power supply is used for supplying power to the alarm.

8. The water immersion alarm system of claim 7, wherein: The alarm is further provided with a third interface and a fourth interface, the third interface is connected with a negative electrode of the external power supply through a wire, and the fourth interface is connected with a positive electrode of the external power supply through a wire.

9. The water immersion alarm system of claim 1, wherein: An antenna is arranged on the top of the alarm, and a signal converter is arranged in the alarm, so that the alarm is connected with signals of external electronic equipment.

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