Mountain fire prevention alarm device for power transmission line

Abstract

The utility model provides a power transmission line forest fire prevention alarm device, which belongs to the technical field of power transmission lines and comprises an inverted U-shaped cover body, a rubber ring, blades, a dustproof net and air filter cotton. According to the utility model, the inverted U-shaped cover body is in threaded connection with the detection box through the bolts, so that most of the detection box is wrapped, a physical protection layer is formed, dust and sundries are prevented from directly falling on the detection box, and the rubber ring is positioned on the inner wall of the inverted U-shaped cover body and is in close contact with the side surface of the detection box, so that the detection box can be further sealed; the ventilation groove is formed in the outer surface of the inverted-U-shaped cover body, so that air circulation inside and outside the detection box can be ensured, meanwhile, the connecting frame is fixed to the inner wall of the ventilation groove, the obliquely-arranged blades can enable dust accumulated on the upper surfaces of the blades to fall outside the inverted-U-shaped cover body due to gravity, and then the air sequentially passes through the dustproof net and the air filtering cotton to be discharged out of the inverted-U-shaped cover body. Therefore, air entering the detection box is clean, and the precision of a detection element is not affected.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line technology, and in particular to a power transmission line wildfire alarm device. Background Technology

[0002] Power transmission lines are electrical facilities used to transmit electrical energy. When a wildfire occurs, the fire may spread to the area beneath the power transmission lines. The high temperature may damage the insulation material of the power transmission lines, causing faults such as short circuits and tripping, which will affect the stability and reliability of the power supply. Therefore, it is necessary to detect the fire in its early stages.

[0003] Chinese Patent Publication (Announcement) No. CN208272575U discloses a power transmission line wildfire alarm device, including a fire-resistant jacket and a heat-conducting wire. A cable is laid inside the fire-resistant jacket, and several detection boxes, control boxes, and fixing rings are arranged side-by-side on the outer surface of the fire-resistant jacket. The heat-conducting wire is fixed to the outside of the fire-resistant jacket by the fixing rings and passes through multiple detection boxes and control boxes in sequence. A sensing device is installed inside the detection box. This power transmission line wildfire alarm device disclosed in this utility model utilizes an infrared temperature sensor to monitor the temperature around the alarm device in real time. Simultaneously, the fire-resistant jacket protects the cable for a period of time, providing time for power-off operations and preventing short circuits caused by the melting of the cable sheath while energized, thus reducing losses.

[0004] However, the infrared temperature sensor in the alarm device is a key detection component. Dust will gradually accumulate on the sensor surface. Therefore, the dust layer will become an obstacle to heat conduction, making the sensor unable to accurately sense the true external temperature. This will cause the detected temperature data to deviate, resulting in delayed alarms and putting the power transmission line at greater risk. Utility Model Content

[0005] The purpose of this invention is to solve the problem of the lack of dust prevention measures in existing power transmission line wildfire alarm devices.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a power transmission line forest fire alarm device, including: a cable, and a fire-resistant sleeve sleeved on the outer surface of the cable, a detection box sleeved on the outer surface of the fire-resistant sleeve, a connecting component between the fire-resistant sleeve and the detection box, and a dustproof component for preventing dust on the outer surface of the detection box.

[0007] The dustproof assembly includes an inverted U-shaped cover that is bolted to the outer surface of the test box, and a handle on the upper surface of the inverted U-shaped cover. The inner wall of the inverted U-shaped cover is provided with a rubber ring, one side of which contacts one side of the test box. The outer surface of the inverted U-shaped cover is provided with a ventilation groove, and the inner wall of the ventilation groove is provided with a connecting frame. The inner wall of the connecting frame is provided with blades at an angle. One side of the blades is provided with a dustproof net, and the other side of the dustproof net is provided with air filter cotton. Both the dustproof net and the air filter cotton are located on the inner wall of the connecting frame.

[0008] Furthermore, the inverted U-shaped cover is a component made of transparent polycarbonate.

[0009] Furthermore, the connecting assembly includes a clamp fitted on the outer surface of the fire-resistant jacket, and a connecting rod set on one side of the clamp. One end of the connecting rod is provided with a connecting plate, and the upper surface and bottom of the connecting plate are provided with connecting blocks. The two sets of connecting blocks are respectively connected to one side of the detection box by bolts. A heat-conducting wire is installed through the inside of the clamp.

[0010] Furthermore, the test box includes a test plate A bolted to the upper surface of a set of connecting blocks, and a test plate B bolted to the bottom of another set of connecting blocks.

[0011] Furthermore, a solar panel and a control panel are installed on the upper surface of detection board A, a battery box is installed inside detection board A, an audible and visual warning light is installed at the bottom of detection board A, a dust sensor and a temperature and humidity sensor are installed at the bottom of detection board A, the solar panel, the audible and visual warning light, the dust sensor and the temperature and humidity sensor are all connected to the control panel, and a wireless communication module is installed inside the control panel, which is connected to the external monitoring center.

[0012] Furthermore, an infrared sensor is installed at the bottom of the detection board B, with a heat-conducting wire located below the infrared sensor, and the infrared sensor is connected to the control panel for signal transmission.

[0013] Furthermore, the inside of the inverted U-shaped cover has grooves, through which heat-conducting wires pass.

[0014] Compared with the prior art, the beneficial effects of this utility model include: the inverted U-shaped cover, rubber ring, blades, dustproof net, and air filter cotton. The inverted U-shaped cover is connected to the detection box by bolts and threads, thus enclosing most of the detection box and forming a physical protective layer to prevent dust and debris from falling directly onto the detection box. Because the rubber ring is located on the inner wall of the inverted U-shaped cover and is in close contact with the side of the detection box, it can further seal the box. Because ventilation grooves are opened on the outer surface of the inverted U-shaped cover, air circulation inside and outside the detection box can be ensured. At the same time, since the connecting frame is fixed to the inner wall of the ventilation groove, and the inclined blades can cause the dust accumulated on the surface of the blades to fall to the outside of the inverted U-shaped cover due to gravity. Then, the air passes through the dustproof net and air filter cotton in sequence, thus ensuring that the air entering the detection box is clean and does not affect the accuracy of the detection element. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows the overall structure of a power transmission line wildfire alarm device according to one embodiment of the present invention.

[0017] Figure 2 The schematic diagram shows a disassembled view of the detection box and dustproof component of a power transmission line wildfire alarm device according to one embodiment of the present invention.

[0018] Figure 3 The schematic diagram shows a disassembled view of the detection box of the power transmission line wildfire alarm device according to one embodiment of the present invention;

[0019] Figure 4 The diagram illustrates the connection component structure of a power transmission line wildfire alarm device according to one embodiment of the present invention.

[0020] The diagram is labeled as follows: 1. Cable; 2. Fire-resistant jacket; 3. Detection box; 31. Detection plate A; 32. Detection plate B; 4. Connecting assembly; 41. Clamp; 42. Connecting rod; 43. Connecting plate; 44. Connecting block; 5. Dustproof assembly; 51. Inverted U-shaped cover; 511. Groove; 52. Handle; 53. Rubber ring; 54. Ventilation slot; 55. Connecting frame; 56. Blade; 57. Dustproof net; 58. Air filter cotton; 6. Heat-conducting wire; 7. Solar panel; 71. Control panel; 72. Audible and visual warning light; 73. Dust sensor; 74. Temperature and humidity sensor; 75. Infrared sensor. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] According to one embodiment of the present invention, in conjunction with Figure 1 As shown.

[0023] A power transmission line wildfire alarm device includes: a cable 1, and a fire-resistant sleeve 2 sleeved on the outer surface of the cable 1. A detection box 3 is sleeved on the outer surface of the fire-resistant sleeve 2. A connecting component 4 is provided between the fire-resistant sleeve 2 and the detection box 3. A dustproof component 5 for preventing dust is provided on the outer surface of the detection box 3.

[0024] In this embodiment, please refer to Figures 1-4 The dustproof component 5 includes an inverted U-shaped cover 51 bolted to the outer surface of the detection box 3, and a handle 52 on the upper surface of the inverted U-shaped cover 51. A rubber ring 53 is provided on the inner wall of the inverted U-shaped cover 51, with one side of the rubber ring 53 contacting one side of the detection box 3. A ventilation slot 54 is formed on the outer surface of the inverted U-shaped cover 51, and a connecting frame 55 is provided on the inner wall of the ventilation slot 54. A blade 56 is inclinedly arranged on the inner wall of the connecting frame 55, with a dustproof net 57 on one side of the blade 56 and an air filter cotton 58 on one side of the dustproof net 57. Both the dustproof net 57 and the air filter cotton 58 are located on the inner wall of the connecting frame 55. Because the inverted U-shaped cover 51 is bolted to the detection box 3, it can largely enclose the detection box 3, forming a physical protective layer that prevents dust and debris from falling directly into the detection box 3. Furthermore, because the rubber ring 53 is located on the inner wall of the inverted U-shaped cover 51 and is in close contact with the side of the detection box 3, it can further seal the gaps and prevent dust from entering from the connection between the cover and the detection box 3. Also, because the ventilation groove 54 is opened on the outer surface of the inverted U-shaped cover 51, it can ensure air circulation inside and outside the detection box 3 and maintain the normal working environment of the detection element. At the same time, since the connecting frame 55 is fixed to the inner wall of the ventilation groove 54, and the inclined blades 56 can make the dust accumulated on the upper surface of the blades 56 fall to the outside of the inverted U-shaped cover 51 due to gravity. Then, the air passes through the dustproof net 57 and the air filter cotton 58 in sequence. The dustproof net 57 filters out smaller dust particles, and the air filter cotton 58 further adsorbs fine dust and some harmful gases, thereby ensuring that the air entering the detection box 3 is clean and does not affect the accuracy of the detection element.

[0025] The inverted U-shaped cover 51 is a component made of transparent polycarbonate, which facilitates observation of the condition of the detection box 3 from the outside.

[0026] The connecting assembly 4 includes a clamp 41 fitted onto the outer surface of the fire-resistant sleeve 2, and a connecting rod 42 set on one side of the clamp 41. A connecting plate 43 is provided at one end of the connecting rod 42. Connecting blocks 44 are provided on the upper surface and bottom of the connecting plate 43. The two sets of connecting blocks 44 are respectively connected to one side of the detection box 3 by bolts. A heat-conducting wire 6 is installed through the inside of the clamp 41. The clamp 41 is fitted onto the fire-resistant sleeve 2, and the detection box 3 is fixed to the outside of the fire-resistant sleeve 2 by the connecting rod 42, the connecting plate 43 and the connecting blocks 44. This can make the connection stable and reliable, and facilitate disassembly and assembly. The heat-conducting wire 6 can transfer the heat around the cable 1 to the inside of the detection box 3 in a timely manner.

[0027] The test box 3 includes a test plate A31 bolted to the upper surface of a set of connecting blocks 44, and a test plate B32 bolted to the bottom of another set of connecting blocks 44, which facilitates installation and disassembly and makes it convenient to maintain and repair the inside of the test box 3.

[0028] The upper surface of the detection board A31 is equipped with a solar panel 7 and a control panel 71. A battery box is located inside the detection board A31. An audible and visual warning light 72, a dust sensor 73, and a temperature and humidity sensor 74 are all located at the bottom of the detection board A31. The solar panel 7, audible and visual warning light 72, dust sensor 73, and temperature and humidity sensor 74 are all connected to the control panel 71. The control panel 71 contains a wireless communication module that is connected to an external monitoring center. The solar panel 7 converts solar energy into electrical energy and stores it in the battery box to supply power to the system. In addition to the overall device capabilities, dust sensor 73 can monitor the dust concentration inside detection box 3, and temperature and humidity sensor 74 can detect the temperature and humidity information of detection box 3. These data are transmitted to control panel 71, which can then determine whether the current environmental conditions are abnormal based on preset thresholds. If control panel 71 determines that the environment is abnormal, it will send a signal to audible and visual warning light 72 to make it emit sound and light for on-site warning. On the other hand, control panel 71 will send the alarm information to the external monitoring center in the form of a wireless signal through its internal wireless communication module to inform relevant personnel of the situation on site.

[0029] An infrared sensor 75 is installed at the bottom of the detection board B32, and the heat-conducting wire 6 is located below the infrared sensor 75. The infrared sensor 75 is connected to the control panel 71. The infrared sensor 75 can quickly detect the abnormal rise in temperature of the heat-conducting wire 6 and send a signal to the control panel 71 in a timely manner to trigger the alarm device.

[0030] The inverted U-shaped cover 51 has a groove 511 inside, through which the heat-conducting wire 6 passes. This provides space for fixing and protecting the heat-conducting wire 6, allowing it to better transfer heat to the infrared sensor 75, while preventing the heat-conducting wire 6 from being interfered with or damaged by external factors.

[0031] Specifically, cable 1 is tightly fitted by fire-resistant sleeve 2. Therefore, in the event of a wildfire, fire-resistant sleeve 2, with its own high-temperature resistance, provides a protective barrier for cable 1, effectively preventing flames from directly contacting cable 1, delaying heat transfer to cable 1, and preventing cable 1 from being rapidly damaged by high temperatures, thus maintaining the normal operation of the transmission line. Then, clamps 41 are fitted onto fire-resistant sleeve 2, and the detection box 3 is fixed to the outside of fire-resistant sleeve 2 by connecting rod 42, connecting plate 43, and connecting block 44. This ensures a stable and reliable connection and facilitates disassembly and assembly. Since the detection box 3 includes detection plate A31 and detection plate B32, both of which are connected to the corresponding connecting block 44 by bolts, it is easy to install and disassemble, facilitating maintenance and repair of the inside of the detection box 3. Furthermore, since the inverted U-shaped cover 51 is bolted and threadedly connected to the detection box 3, it can largely enclose the detection box 3, forming a physical protective layer that prevents dust and debris from falling directly onto the detection box 3. Also, the inverted U-shaped cover 51, made of transparent polycarbonate, allows for easy observation of the detection box 3 from the outside. Because the rubber ring 53 is located on the inner wall of the inverted U-shaped cover 51 and is in close contact with the side of the detection box 3, it further seals the gaps, preventing dust from entering from the connection between the cover and the detection box 3. Additionally, because the outer surface of the inverted U-shaped cover 51 has openings... The ventilation duct 54 ensures air circulation inside and outside the detection box 3, maintaining the normal working environment of the detection element. At the same time, since the connecting frame 55 is fixed to the inner wall of the ventilation duct 54, and the inclined blades 56 can cause the dust accumulated on the surface of the blades 56 to fall to the outside of the inverted U-shaped cover 51 due to gravity. Then, the air passes through the dustproof net 57 and the air filter cotton 58 in sequence. The dustproof net 57 filters out smaller dust particles, and the air filter cotton 58 further adsorbs fine dust and some harmful gases, thereby ensuring that the air entering the detection box 3 is clean and does not affect the accuracy of the detection element. During use, the solar panel 7 converts solar energy into electrical energy and stores it in the battery box to power the entire device. Additionally, the dust sensor 73 monitors the dust concentration inside the detection box 3, the temperature and humidity sensor 74 detects the temperature and humidity information of the detection box 3, and the infrared sensor 75 quickly detects abnormal increases in the temperature of the heating wire 6. This data is transmitted to the control panel 71, which can then determine whether the current environmental conditions are abnormal based on preset thresholds. If the control panel 71 detects an environmental anomaly, it sends a signal to the audible and visual warning light 72 to issue a sound and light warning. Simultaneously, the control panel 71 transmits the alarm information wirelessly to an external monitoring center via its internal wireless communication module, informing relevant personnel of the situation on-site.

[0032] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A bushfire warning device for a power line, characterised by: The cable line and the fireproof sleeve covering the outer surface of the cable line, the outer surface of the fireproof sleeve is covered with a detection box, a connecting assembly is arranged between the fireproof sleeve and the detection box, and a dustproof assembly is arranged on the outer surface of the detection box for preventing dust; The dustproof assembly comprises an inverted U-shaped cover body threadedly connected to the outer surface of the detection box, and a handle arranged on the upper surface of the inverted U-shaped cover body, the inner wall of the inverted U-shaped cover body is provided with a rubber ring, one side of the rubber ring is in contact with one side of the detection box, the outer surface of the inverted U-shaped cover body is provided with a ventilation groove, the inner wall of the ventilation groove is provided with a connecting frame, the inner wall of the connecting frame is obliquely provided with a blade, one side of the blade is provided with a dust screen, one side of the dust screen is provided with air filter cotton, and the dust screen and the air filter cotton are located on the inner wall of the connecting frame.

2. The electric transmission line anti-forest fire alarm device according to claim 1, characterized in that: The inverted U-shaped cover body is a component made of transparent polycarbonate.

3. The electric transmission line anti-forest fire alarm device according to claim 1, characterized in that: The connecting assembly comprises a clamp covering the outer surface of the fireproof sleeve, and a connecting rod arranged on one side of the clamp, one end of the connecting rod is provided with a connecting plate, the upper surface and the bottom of the connecting plate are provided with connecting blocks, two groups of the connecting blocks are respectively connected to one side of the detection box through bolts, and a heat-conducting wire is arranged in the clamp.

4. The bushfire detection and warning system for power lines as claimed in claim 3 wherein: The detection box comprises a detection plate A threadedly connected to the upper surface of one group of the connecting blocks, and a detection plate B threadedly connected to the bottom of the other group of the connecting blocks.

5. The bushfire detection and warning system for power lines as claimed in claim 4 wherein: The upper surface of the detection plate A is provided with a solar panel and a control panel, the inside of the detection plate A is provided with a battery box, the bottom of the detection plate A is provided with an audible and visual warning light, the bottom of the detection plate A is provided with a dust sensor and a temperature and humidity sensor, the solar panel, the audible and visual warning light, the dust sensor and the temperature and humidity sensor are signal-connected with the control panel, the inside of the control panel is provided with a wireless communication module, and the wireless communication module is signal-connected with a monitoring center in the outside world.

6. The bushfire detection and warning system for power lines as claimed in claim 5 wherein: The bottom of the detection plate B is provided with an infrared sensor, the heat-conducting wire is located below the infrared sensor, and the infrared sensor is signal-connected with the control panel.

7. The electric transmission line anti-forest fire alarm device according to claim 3, characterized in that: The inside of the inverted U-shaped cover body is provided with a groove, and the heat-conducting wire penetrates into the inside of the groove.

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