Medium and low voltage power distribution network multifunctional protection equipment convenient to install

Abstract

The invention discloses a middle and low voltage power distribution network multifunctional protection device convenient to install, and relates to the technical field of power distribution networks, the device comprises a box body, a fireproof box and a fireproof module, the top of the outer wall of the box body is fixedly connected with the fireproof box, the fireproof module is installed in the fireproof box, and the fireproof module is used for automatic fire extinguishing when the power distribution equipment is on fire; the fireproof module comprises a film, a moving plate, a moving block and a first motor. By installing the fireproof module, the automatic fire extinguishing function of power distribution equipment in the box body is achieved, the problem that traditional power distribution equipment has defects in the aspect of fire prevention and control is solved, the operation safety of a power distribution network is improved, and the power failure accident risk caused by a fire is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution networks, and in particular to a multifunctional protection device for medium and low voltage power distribution networks which is easy to install. Background Art

[0002] As an important part of the power system, medium and low voltage distribution networks directly supply power to a large number of users. Their safety and stability are directly related to the user's power experience and reliability. With the continuous growth of power demand and the increasing complexity of the power grid structure, the safety and stability of medium and low voltage distribution networks have gradually become the focus of attention.

[0003] As people's requirements for quality of life improve, the requirements for the stability and reliability of power quality are also increasing. However, when dealing with emergencies such as fires, traditional distribution equipment often has problems such as slow response speed and poor fire extinguishing effect, which brings huge safety risks and economic losses to the power system and users. Therefore, a multifunctional protection device for medium and low voltage distribution networks that is easy to install is extremely important.

[0004] 1. Patent document CN111585264B discloses a lightning protection device for protecting medium and low voltage distribution networks. The above patent realizes the convenient installation of the lightning arrester and facilitates subsequent maintenance and removal, and is highly practical. However, the above patent cannot realize the automatic fire extinguishing function of the distribution equipment inside the box.

[0005] 2. Patent document CN111834932B discloses an intelligent distribution network safety protection device. The above patent realizes uniform heat dissipation inside the distribution box, improves the heat dissipation effect, and improves the safety protection effect inside the distribution box. However, the above patent cannot realize the alarm function when a fire occurs in the distribution equipment.

[0006] 3. Patent document CN111224376B discloses a low-voltage distribution network anti-electric shock protection method and protection device. The above patent realizes the protection of personal electric shock safety and can eliminate the malfunction of the leakage current protection device caused by instantaneous faults, but the above patent cannot realize the heat dissipation function of the distribution equipment inside the box.

[0007] 4. Patent document CN117690750B discloses a vacuum circuit breaker for protecting electrical equipment in a distribution network. The above patent improves the performance of the vacuum circuit breaker, but the above patent cannot achieve the function of restoring the ventilation effect inside the box.

[0008] In summary, the above patent cannot realize the automatic fire extinguishing function of the power distribution equipment inside the box, cannot realize the alarm function when the power distribution equipment catches fire, cannot realize the heat dissipation function of the power distribution equipment inside the box, and cannot realize the recovery function of the ventilation effect inside the box, resulting in the problem that the power distribution equipment cannot extinguish the fire and alarm in time when a fire occurs, and the power distribution equipment temperature is too high to cause a fire; To this end, the present application proposes a device that can realize the automatic fire extinguishing function of the power distribution equipment inside the box, the alarm function when a fire occurs in the power distribution equipment, the heat dissipation function of the power distribution equipment inside the box, and the recovery function of the ventilation effect inside the box. Summary of the invention

[0009] The object of the present invention is to provide a multifunctional protection device for medium and low voltage distribution networks which is easy to install, so as to solve the technical problems raised in the above background technology that the automatic fire extinguishing function of the distribution equipment inside the box cannot be realized, the heat dissipation function of the distribution equipment inside the box cannot be realized, and the heat dissipation function of the distribution equipment inside the box cannot be realized. The function of restoring the ventilation effect inside the box cannot be realized, resulting in the failure to extinguish the fire and alarm in time when a fire occurs in the distribution equipment, and the fire caused by excessive temperature of the distribution equipment.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, comprising a box body, a fireproof box and a fireproof module, wherein the fireproof box is fixedly connected to the top of the outer wall of the box body, and the fireproof module is installed in the fireproof box, and the fireproof module is used for automatic fire extinguishing when the distribution equipment catches fire; The fire prevention module comprises: a film, a moving plate, a moving block and a first motor; A material box is fixedly connected to the top of the inner wall of the fireproof box, a film is fixedly connected to the inner wall of the material box, a first motor is symmetrically fixedly connected to the outer wall of the material box, a first rotating shaft is installed on the side wall of the first motor, the fireproof box is sleeved on the side wall of the first rotating shaft, a moving block is sleeved on the outer wall of the first rotating shaft, the thread of the first rotating shaft matches the thread of the moving block, a moving plate is fixedly connected to the side wall of the moving block, the moving plate is installed on the bottom of the inner wall of the material box, a film is fixedly connected to the top of the outer wall of the moving plate, dry powder is filled in the film, a plurality of discharge holes are provided on the moving plate, a first opening groove is provided at the bottom of the fireproof box, a second opening groove is provided at the top of the box body, the first opening groove and the second opening groove have the same size, the first opening groove and the second opening groove are communicated with each other, the first opening groove is communicated with the discharge hole, an intelligent analyzer is fixedly connected to the side of the inner wall of the box body, and the intelligent analyzer is connected to the first motor via Bluetooth.

[0011] Preferably, a fire warning module is installed in the box, and the fire warning module is connected to the fire prevention module via Bluetooth. The fire warning module is used to alarm when a fire occurs in the power distribution equipment; The fire warning module includes: temperature sensor, intelligent analyzer, alarm and smoke sensor; A temperature sensor is fixedly connected to the top of the inner wall of the box, the side wall of the temperature sensor is fixedly connected to one side of the first signal line, the other side of the first signal line is fixedly connected to an intelligent analyzer, the bottom of the outer wall of the intelligent analyzer is fixedly connected to an alarm, the side wall of the intelligent analyzer is fixedly connected to one side of the second signal line, the other side of the second signal line is fixedly connected to a smoke sensor, and the smoke sensor is fixedly connected to the top of the inner wall of the box.

[0012] Preferably, a heat dissipation module is installed in the box, and the heat dissipation module is used to reduce the working environment temperature of the power distribution equipment; The heat dissipation module includes: a second motor, a sliding block, a third motor, a heat dissipation fan and a heat dissipation slot; The side wall of the box body is symmetrically provided with a plurality of heat dissipation grooves, the outlet height of the heat dissipation grooves on the inner wall of the box body is higher than that of the outer wall of the box body, a first bracket is fixedly connected to the side of the inner wall of the box body, a second motor is fixedly connected to the bottom of the outer wall of the first bracket, a second rotating shaft is installed at the bottom of the second motor, a first fixed block is mounted on the bottom of the outer wall of the second rotating shaft, the side wall of the first fixed block is fixedly connected to the box body, a sliding block is mounted on the bottom of the outer wall of the second rotating shaft, the thread of the second rotating shaft matches the thread of the sliding block, a third motor is fixedly connected to the side wall of the sliding block, and the third motor is connected to a heat dissipation fan through the rotating shaft.

[0013] Preferably, a cleaning module is installed on the box body, and the cleaning module is used to clean dust and debris outside the heat dissipation slot; The cleaning module includes: a fourth motor, a third rotating shaft, a scraper and a fourth rotating shaft; The outer wall of the box body is symmetrically fixedly connected with a second bracket, the side wall of the second bracket is fixedly connected with a fourth motor, the side wall of the fourth motor is installed with a third rotating shaft, the side wall of the third rotating shaft is fitted with a second fixed block, the outer wall of the second fixed block is fixedly connected with a box body, the outer wall of the third rotating shaft is fitted with a scraper, the thread of the third rotating shaft matches the thread of the scraper, the side part of the outer wall of the box body is symmetrically fixedly connected with a third fixed block, the third fixed block is fitted on the outer wall of the fourth rotating shaft, the outer wall of the fourth rotating shaft is fitted with a scraper, and the scraper is in contact with the box body.

[0014] Preferably, the inner wall of the box is symmetrically fixedly connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a moving rod, the outer wall of the moving rod is sleeved with a first moving shaft, the side wall of the first moving shaft is installed with a first fastening bolt, the first fastening bolt contacts the moving rod, the side wall of the first moving shaft is fixedly connected with a mounting plate, the mounting plate has symmetrical moving grooves, the moving grooves are sleeved on the outer wall of the first connecting block, the side wall of the first connecting block is fixedly connected with a first spring, the side wall of the first spring is fixedly connected with a mounting plate, the side wall of the first connecting block is fixedly connected with a second connecting block, the bottom of the outer wall of the second connecting block is fixedly connected with a bottom plate, the outer wall of the second connecting block is fixedly connected with a side plate, and the bottom of the outer wall of the side plate is fixedly connected with the bottom plate.

[0015] Preferably, a universal wheel is installed at the bottom of the outer wall of the box body, a base is installed at the outer wall of the box body, and placement grooves are symmetrically opened at the top of the outer wall of the base, and the universal wheel is located in the placement groove.

[0016] Preferably, the side wall of the box body is symmetrically provided with a first groove, the first groove is sleeved on the outer wall of the positioning block, the base is symmetrically provided with a second groove, the second groove is sleeved on the outer wall of the positioning block, the side wall of the positioning block is fixedly connected with the first limit block, the side wall of the first limit block is fixedly connected with the second spring, the second spring is installed in the second groove, the side wall of the second spring is fixedly connected with the base, the top of the outer wall of the positioning block is provided with a third groove, the base is provided with a fourth groove, the fourth groove is communicated with the second groove, the fourth groove is sleeved on the outer wall of the pressing block, the side wall of the pressing block is fixedly connected with the second limit block, the bottom of the outer wall of the second limit block is fixedly connected with the third spring, a roller is installed at the bottom of the pressing block, the roller is above the third groove, and the outer wall of the pressing block is sleeved with a rubber ring.

[0017] Preferably, a buffer groove is provided at the bottom of the box body, the buffer groove is mounted on the outer wall of the universal wheel, a fourth spring is fixedly connected to the top of the outer wall of the universal wheel, the fourth spring is installed in the buffer groove, the top of the outer wall of the fourth spring is fixedly connected to the box body, the side wall of the universal wheel is fixedly connected to the third limit block, a limit groove is provided in the box body, the limit groove is communicated with the buffer groove, and the limit groove is mounted on the outer wall of the third limit block.

[0018] Preferably, the temperature sensor is connected to the second motor, the third motor and the fourth motor via Bluetooth.

[0019] Preferably, the outer wall of the movable rod is sleeved with a second movable shaft, the side wall of the second movable shaft is installed with a second fastening bolt, the second fastening bolt is in contact with the movable rod, the outer wall of the second movable shaft is symmetrically fixedly connected with a connecting plate, the outer wall of the connecting plate is installed with a connecting shaft, the outer wall of the connecting shaft is installed with a wire management plate, the wire management plate is provided with a wire management groove, and the side wall of the wire management plate is fixedly connected with a rubber plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the automatic fire extinguishing function of the power distribution equipment inside the box by installing a fire prevention module, solves the problem that traditional power distribution equipment has deficiencies in fire prevention and control, improves the safety of distribution network operation, and reduces the risk of power outages caused by fire; 2. The present invention realizes the alarm function when a fire occurs in the power distribution equipment by installing a fire warning module, realizes the timely transmission of fire information, improves the emergency response speed, solves the problem of lag in fire prevention and control of the power distribution equipment, and realizes real-time monitoring of the temperature of the power distribution equipment and its surrounding environment; 3. The present invention realizes the heat dissipation function of the power distribution equipment inside the box by installing a heat dissipation module, solves the problem that the power distribution equipment is overheated during operation and affects the normal operation and life of the equipment, reduces the safety risks caused by overheating of the equipment, and improves the stability and reliability of the equipment; 4. The present invention achieves the function of restoring the ventilation effect inside the box by installing a cleaning module, solves the problem of box ventilation blockage, reduces the risk of equipment overheating, protects the normal operation of the equipment, and the stability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the moving rod part of the present invention; Figure 2 It is a partial structural schematic diagram of the fire protection module of the present invention; Figure 3 It is a partial structural schematic diagram of the fire warning module of the present invention; Figure 4 It is a partial structural schematic diagram of the heat dissipation module of the present invention; Figure 5 It is a partial structural schematic diagram of the cleaning module of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention; Figure 7 It is a schematic diagram of the structure of the universal wheel part of the present invention; Figure 8 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A.

[0022] In the figure: 1, box body; 2, base; 3, fireproof box; 4, material box; 5, film; 6, moving plate; 7, discharge hole; 8, moving block; 9, first motor; 10, first rotating shaft; 11, first opening slot; 12, second opening slot; 13, universal wheel; 14, connecting rod; 15, moving rod; 16, temperature sensor; 17, first signal line; 18, intelligent analyzer; 19, alarm; 20, second signal line; 21, first bracket; 22, second motor; 23, second rotating shaft; 24, first fixed block; 25, sliding block; 26, third motor; 27, cooling fan; 28, cooling slot; 29, mounting plate; 30, second bracket; 31, fourth motor; 32, third rotating shaft; 33, second fixed block; 34, scraper; 35, fourth rotating shaft; 36 , first groove; 37, positioning block; 38, third groove; 39, first limiting block; 40, second spring; 41, second groove; 42, pressing block; 43, rubber ring; 44, third spring; 45, fourth groove; 46, second limiting block; 47, first moving shaft; 48, first fastening bolt; 49, first connecting block; 50, side plate; 51, bottom plate; 52, second connecting block; 53, first spring; 54, moving groove; 55, second moving shaft; 56, connecting plate; 57, connecting shaft; 58, cable management plate; 59, cable management groove; 60, rubber plate; 61, limiting groove; 62, third limiting block; 63, placement groove; 64, buffer groove; 65, fourth spring; 66, third fixing block; 67, second fastening bolt; 68, roller; 69, smoke sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] 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 operated in a specific orientation, and therefore cannot be understood as limiting 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.

[0025] 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 indirectly connected 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.

[0026] See also Figure 2 , Figure 3 and Figure 4 , an embodiment provided by the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, comprising a box body 1, a fireproof box 3 and a fireproof module, wherein the fireproof box 3 is fixedly connected to the top of the outer wall of the box body 1, and a fireproof module is installed in the fireproof box 3, and the fireproof module is used for automatic fire extinguishing when a distribution equipment catches fire; The fire prevention module comprises: a film 5, a moving plate 6, a moving block 8 and a first motor 9; The top of the inner wall of the fireproof box 3 is fixedly connected to a material box 4, the inner wall of the material box 4 is fixedly connected to a film 5, the outer wall of the material box 4 is symmetrically fixedly connected to a first motor 9, the side wall of the first motor 9 is installed with a first rotating shaft 10, the fireproof box 3 is sleeved on the side wall of the first rotating shaft 10, the outer wall of the first rotating shaft 10 is sleeved with a moving block 8, the thread of the first rotating shaft 10 matches the thread of the moving block 8, the side wall of the moving block 8 is fixedly connected to a moving plate 6, the moving plate 6 is installed at the bottom of the inner wall of the material box 4, and the outer wall of the moving plate 6 A film 5 is fixedly connected to the top of the wall, and dry powder is contained in the film 5. A plurality of discharge holes 7 are provided on the movable plate 6. A first opening slot 11 is provided at the bottom of the fireproof box 3, and a second opening slot 12 is provided at the top of the box body 1. The first opening slot 11 has the same size as the second opening slot 12, and the first opening slot 11 communicates with the second opening slot 12. The first opening slot 11 communicates with the discharge hole 7. An intelligent analyzer 18 is fixedly connected to the side of the inner wall of the box body 1, and the intelligent analyzer 18 is connected to the first motor 9 via Bluetooth; Furthermore, when the power distribution equipment in the box body 1 fails due to factors such as short circuit and overload, causing a fire, the temperature inside the box body 1 gradually increases, causing the temperature inside the fireproof box 3 to gradually increase, and then causing the temperature inside the material box 4 to gradually increase, thereby melting the film 5, and the dry powder in the film 5 falls onto the power distribution equipment inside the box body 1 through the discharge hole 7 on the movable plate 6, suppressing the burning of the flame, isolating oxygen, and achieving the purpose of extinguishing the fire. When the intelligent analyzer 18 in the box body 1 detects a fire, the intelligent analyzer 18 immediately controls the first motor 9 to start, the first motor 9 drives the first rotating shaft 10 to rotate, the first rotating shaft 10 drives the moving block 8 to move, the moving block 8 drives the moving plate 6 to move, the moving plate 6 applies a pulling force to the film 5, causing the film 5 to break in advance, and at the same time the two moving plates 6 gradually separate, the dry powder filled in the film 5 can directly pass through the first opening slot 11 and the second opening slot 12 and fall into the power distribution equipment inside the box body 1, thereby extinguishing the fire, avoiding the fire being too small to cause the film 5 to not melt, and then causing the fire to spread, thereby ensuring the reliability and safety of the equipment.

[0027] See also Figure 3 , an embodiment provided by the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, a fire warning module is installed in the box 1, the fire warning module is connected to a fire prevention module via Bluetooth, and the fire warning module is used to alarm when a fire occurs in the distribution equipment; The fire warning module includes: a temperature sensor 16, an intelligent analyzer 18, an alarm 19 and a smoke sensor 69; A temperature sensor 16 is fixedly connected to the top of the inner wall of the box 1, and a side wall of the temperature sensor 16 is fixedly connected to one side of a first signal line 17, and an intelligent analyzer 18 is fixedly connected to the other side of the first signal line 17, and an alarm 19 is fixedly connected to the bottom of the outer wall of the intelligent analyzer 18, and a side wall of the intelligent analyzer 18 is fixedly connected to one side of a second signal line 20, and a smoke sensor 69 is fixedly connected to the other side of the second signal line 20, and the smoke sensor 69 is fixedly connected to the top of the inner wall of the box 1; Furthermore, the temperature sensor 16 monitors the ambient temperature inside the box 1 in real time, and transmits the temperature data to the intelligent analyzer 18 through the first signal line 17. The smoke sensor 69 transmits the smoke concentration data to the intelligent analyzer 18 through the second signal line 20. The intelligent analyzer 18 receives and analyzes the temperature data and the smoke concentration data, and compares the ambient temperature inside the box 1 with the threshold temperature. When the intelligent analyzer 18 detects that the ambient temperature exceeds the threshold temperature or detects that smoke is generated, the intelligent analyzer 18 determines that a fire accident has occurred in the power distribution equipment inside the box 1. The intelligent analyzer 18 immediately generates an alarm signal and transmits the alarm signal to the alarm 19. The alarm 19 immediately emits an audible and visual alarm to alert the surrounding personnel. At the same time, the alarm 19 sends a notification to the staff via text message; when the power distribution equipment is burnt due to line aging, short circuit and other factors, and no fire has been caused yet, and the temperature inside the box 1 has not reached the threshold temperature yet, the intelligent analyzer 18 can determine that the power distribution equipment has a tendency to catch fire based on the real-time smoke concentration of the smoke sensor 69, thereby avoiding the spread of the fire.

[0028] See also Figure 4 , an embodiment provided by the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, a heat dissipation module is installed in the box 1, and the heat dissipation module is used to reduce the working environment temperature of the distribution equipment; The heat dissipation module includes: a second motor 22, a sliding block 25, a third motor 26, a heat dissipation fan 27 and a heat dissipation slot 28; A plurality of heat dissipation slots 28 are symmetrically provided on the side wall of the box body 1. The outlet height of the heat dissipation slots 28 on the inner wall of the box body 1 is higher than that of the outer wall of the box body 1. A first bracket 21 is fixedly connected to the side of the inner wall of the box body 1. A second motor 22 is fixedly connected to the bottom of the outer wall of the first bracket 21. A second rotating shaft 23 is installed at the bottom of the second motor 22. A first fixing block 24 is sleeved on the bottom of the outer wall of the second rotating shaft 23. The side wall of the first fixing block 24 is fixedly connected to the box body 1. A sliding block 25 is sleeved on the bottom of the outer wall of the second rotating shaft 23. The thread of the second rotating shaft 23 matches the thread of the sliding block 25. A third motor 26 is fixedly connected to the side wall of the sliding block 25. The third motor 26 is connected to a heat dissipation fan 27 through a rotating shaft. Further, the third motor 26 is started, and the third motor 26 drives the cooling fan 27 to rotate through the shaft, and the cooling fan 27 drives the gas flow inside the box 1 to blow the hot air of the box 1 out through the heat dissipation slot 28, and the second motor 22 on the first bracket 21 is started, and the second motor 22 drives the second rotating shaft 23 to rotate, and the second rotating shaft 23 drives the sliding block 25 to move, and the sliding block 25 performs a lifting movement on the second rotating shaft 23, and the sliding block 25 drives the third motor 26 to move, and the third motor 26 drives the cooling fan 27 to move, and the cooling fan 27 reciprocates in the vertical direction, so as to ensure that the cooling fan 27 can blow the hot air everywhere inside the box 1, realize uniform heat dissipation, ensure that the equipment operates at the optimal temperature, avoid the temperature inside the box 1 being too high, and reduce the risk of fire caused by overheating of the equipment; the outlet height of the heat dissipation slot 28 on the inner wall of the box 1 is higher than that of the outer wall of the box 1, so as to avoid external dust and rainwater from entering the box 1, prevent dust and rainwater from causing failure of the power distribution equipment, ensure the stability of the working environment of the power distribution equipment, and thus improve the stability of the equipment operation.

[0029] See also Figure 5 , an embodiment provided by the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, wherein a cleaning module is installed on the box body 1, and the cleaning module is used to clean dust and debris outside the heat dissipation slot 28; The cleaning module includes: a fourth motor 31, a third rotating shaft 32, a scraper 34 and a fourth rotating shaft 35; The outer wall of the box body 1 is symmetrically fixedly connected with the second bracket 30, the side wall of the second bracket 30 is fixedly connected with the fourth motor 31, the side wall of the fourth motor 31 is installed with a third rotating shaft 32, the side wall of the third rotating shaft 32 is sleeved with a second fixed block 33, the outer wall of the second fixed block 33 is fixedly connected with the box body 1, the outer wall of the third rotating shaft 32 is sleeved with a scraper 34, the thread of the third rotating shaft 32 matches the thread of the scraper 34, the side part of the outer wall of the box body 1 is symmetrically fixedly connected with the third fixed block 66, the third fixed block 66 is sleeved on the outer wall of the fourth rotating shaft 35, the outer wall of the fourth rotating shaft 35 is sleeved with a scraper 34, and the scraper 34 contacts the box body 1; The scraper 34 is in contact with the housing 1, so that the scraper 34 gradually cleans the debris and dust on the surface of the housing 1, so that the heat dissipation groove 28 on the housing 1 is communicated with the outside, and the debris and dust are prevented from blocking the heat dissipation groove 28, thereby ensuring the ventilation effect of the housing 1, preventing the hot air in the housing 1 from being unable to dissipate through the heat dissipation groove 28, thereby improving the heat dissipation effect of the housing 1, ensuring the safe operation of the power distribution equipment, and improving the stability and reliability of the equipment, thereby improving the power supply quality and stability of the entire distribution network.

[0030] See also Figure 1 , Figure 2 , Figure 4 and Figure 6 , an embodiment provided by the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, wherein the inner wall of the box body 1 is symmetrically fixedly connected with a connecting rod 14, the outer wall of the connecting rod 14 is fixedly connected with a moving rod 15, the outer wall of the moving rod 15 is sleeved with a first moving shaft 47, the side wall of the first moving shaft 47 is installed with a first fastening bolt 48, the first fastening bolt 48 is in contact with the moving rod 15, the side wall of the first moving shaft 47 is fixedly connected with a mounting plate 29, the mounting plate 29 is symmetrically provided with a moving groove 54, the moving groove 54 is sleeved on the outer wall of the first connecting block 49, the side wall of the first connecting block 49 is fixedly connected with a first spring 53, the side wall of the first spring 53 is fixedly connected with the mounting plate 29, the first A second connecting block 52 is fixedly connected to the side wall of a connecting block 49, a bottom plate 51 is fixedly connected to the outer wall bottom of the second connecting block 52, a side plate 50 is fixedly connected to the outer wall of the second connecting block 52, and the bottom plate 51 is fixedly connected to the outer wall of the side plate 50; a second moving shaft 55 is sleeved on the outer wall of the moving rod 15, a second fastening bolt 67 is installed on the side wall of the second moving shaft 55, the second fastening bolt 67 is in contact with the moving rod 15, a connecting plate 56 is symmetrically fixedly connected to the outer wall of the second moving shaft 55, a connecting shaft 57 is installed on the outer wall of the connecting plate 56, a wire management plate 58 is installed on the outer wall of the connecting shaft 57, a wire management groove 59 is opened on the wire management plate 58, and a rubber plate 60 is fixedly connected to the side wall of the wire management plate 58; Further, the first fastening bolt 48 and the second fastening bolt 67 are loosened, the first moving shaft 47 and the second moving shaft 55 are moved, the first moving shaft 47 drives the mounting plate 29 to move, the second moving shaft 55 drives the connecting plate 56, after the mounting plate 29 and the connecting plate 56 are moved to a suitable position, the first fastening bolt 48 and the second fastening bolt 67 are tightened, the first moving shaft 47 and the second moving shaft 55 are fixed on the moving rod 15, the second connecting block 52 is pulled, the second connecting block 52 drives the first connecting block 49 to move, the first connecting block 49 stretches the first spring 53, the second connecting block 52 drives the side plate 50 and the bottom plate 51 to move, so that the two side plates 50 gradually move away from each other, and the power distribution equipment is placed on the movable rod 15. The pulling force applied to the second connecting block 52 on the two bottom plates 51 and between the two side plates 50 is removed, and the first spring 53 returns to its original shape. The first spring 53 drives the first connecting block 49 to move, the first connecting block 49 drives the second connecting block 52 to move, and the second connecting block 52 drives the side plate 50 and the bottom plate 51 to move, so that the two side plates 50 gradually approach each other, thereby clamping and fixing the power distribution equipment. The wire management plate 58 is rotated, and the wires on the power distribution equipment are passed through the rubber plate 60 and placed in the wire management groove 59 in the wire management plate 58, so as to organize the wires of the power distribution equipment, facilitate the staff to install and repair the power distribution equipment, and avoid the risk of electric shock caused by entanglement of wires when the staff install and repair the power distribution equipment.

[0031] See also Figure 2 , Figure 7 and Figure 8 , an embodiment of the present invention: a multifunctional protection device for medium and low voltage distribution networks that is easy to install, wherein a universal wheel 13 is installed at the bottom of the outer wall of the box body 1, and a base 2 is installed on the outer wall of the box body 1, and a placement groove 63 is symmetrically opened on the top of the outer wall of the base 2, and the universal wheel 13 is in the placement groove 63; the side wall of the box body 1 is symmetrically opened with a first groove 36, and the first groove 36 is sleeved on the outer wall of the positioning block 37, and the base 2 is symmetrically opened with a second groove 41, and the second groove 41 is sleeved on the outer wall of the positioning block 37, and the side wall of the positioning block 37 is fixedly connected with a first limit block 39, and the side wall of the first limit block 39 is fixedly connected A second spring 40 is connected, the second spring 40 is installed in the second groove 41, the side wall of the second spring 40 is fixedly connected to the base 2, the top of the outer wall of the positioning block 37 is provided with a third groove 38, the base 2 is provided with a fourth groove 45, the fourth groove 45 is communicated with the second groove 41, the fourth groove 45 is sleeved on the outer wall of the pressing block 42, the side wall of the pressing block 42 is fixedly connected to the second limit block 46, the bottom of the outer wall of the second limit block 46 is fixedly connected to the third spring 44, the bottom of the pressing block 42 is installed with a roller 68, the roller 68 is above the third groove 38, and the outer wall of the pressing block 42 is sleeved with a rubber ring 43; Further, the base 2 is installed in a suitable position, and the pressure of the pressing block 42 is applied. The pressing block 42 drives the second limit block 46 to move in the fourth groove 45. The second limit block 46 squeezes the third spring 44. The pressing block 42 drives the roller 68 to move downward. The roller 68 contacts the positioning block 37, so that the roller 68 slides in the third groove 38, thereby causing the positioning block 37 to move in the second groove 41. The positioning block 37 drives the first limit block 39 to move. The first limit block 39 squeezes the second spring 40, and the box 1 is moved. The universal wheel 13 is moved to the placement groove 63, thereby moving the box 1 onto the base 2, aligning the first groove 36 on the box 1 with the second groove 41 on the base 2, and removing the pressure of the pressing block 42. The second spring 40 and the third spring 44 return to their original shapes, the second spring 40 drives the first limit block 39 to move, the first limit block 39 drives the positioning block 37 to move, the positioning block 37 moves into the first groove 36, so that the box body 1 is installed and fixed, which is convenient for the staff to install and disassemble the box body 1 at any time; the third spring 44 drives the second limit block 46 to move, the second limit block 46 drives the pressing block 42 to move, the pressing block 42 returns to the original position, and the rubber ring 43 is put on the pressing block 42 to fix the pressing block 42, so as to avoid external force factors causing the pressing block 42 to move downward, causing the positioning block 37 to move out of the first groove 36; when the box body 1 needs to be disassembled, just cut or remove the rubber ring 43 and repeat the above steps.

[0032] Working principle: When the box 1 is moved to the base 2, a fourth spring 65 is installed between the universal wheel 13 and the box 1, so that the box 1 moves on uneven ground with the buffer groove 64 outside the universal wheel 13. The fourth spring 65 plays a buffering and shock-absorbing role on the box 1 to avoid damage to the internal equipment of the box 1. The limit groove 61 limits the moving range of the third limit block 62, thereby limiting the moving range of the universal wheel 13 to prevent the universal wheel 13 from moving out of the buffer groove 64. The intelligent analyzer 18 analyzes the temperature sensor 16 to monitor the temperature in real time. When the intelligent analyzer 18 determines that the temperature inside the box 1 is too high, the intelligent analyzer 18 controls the second motor 22 and the third motor 26 to start to dissipate heat inside the box 1. The intelligent analyzer 18 controls the fourth motor 31 to start to clean the dust and debris outside the box 1 to prevent the dust and debris from blocking the heat dissipation slot 28, thereby affecting the heat dissipation effect. When the temperature rises due to a fire in the power distribution equipment in the box 1, the film 5 will melt. At the same time, the intelligent analyzer 18 detects that the temperature exceeds the threshold and determines that a fire has occurred. The intelligent analyzer 18 controls the second motor 22, the third motor 26 and the fourth motor 31 to turn off, and the intelligent analyzer 18 controls the first motor 9 to start, so that the movable plate 6 moves, thereby pulling the film 5 to further rupture the film 5. The two movable plates 6 gradually move away, so that the dry powder can quickly pass through the first opening slot 11 and the second opening slot 12 and fall onto the power distribution equipment inside the box 1 to extinguish the fire.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multifunctional protection device for medium and low voltage distribution networks that is easy to install, characterized in that: It comprises a box body (1), a fireproof box (3) and a fireproof module, wherein the top of the outer wall of the box body (1) is fixedly connected to the fireproof box (3), and the fireproof module is installed in the fireproof box (3), and the fireproof module is used for automatic fire extinguishing when the power distribution equipment catches fire; The fire protection module comprises: a film (5), a movable plate (6), a movable block (8) and a first motor (9); The top of the inner wall of the fireproof box (3) is fixedly connected to a material box (4), the inner wall of the material box (4) is fixedly connected to a film (5), the outer wall of the material box (4) is symmetrically fixedly connected to a first motor (9), the side wall of the first motor (9) is mounted with a first rotating shaft (10), the fireproof box (3) is sleeved on the side wall of the first rotating shaft (10), the outer wall of the first rotating shaft (10) is sleeved with a moving block (8), the thread of the first rotating shaft (10) matches the thread of the moving block (8), the side wall of the moving block (8) is fixedly connected to a moving plate (6), the moving plate (6) is mounted on the bottom of the inner wall of the material box (4), and the moving plate (6) A film (5) is fixedly connected to the top of the outer wall, and dry powder is contained in the film (5). A plurality of discharge holes (7) are provided on the movable plate (6). A first opening groove (11) is provided at the bottom of the fireproof box (3), and a second opening groove (12) is provided at the top of the box body (1). The first opening groove (11) and the second opening groove (12) have the same size, and the first opening groove (11) and the second opening groove (12) are communicated with each other. The first opening groove (11) is communicated with the discharge hole (7). An intelligent analyzer (18) is fixedly connected to the side of the inner wall of the box body (1), and the intelligent analyzer (18) is connected to a first motor (9) via Bluetooth.

2. According to claim 1, a multifunctional protection device for medium and low voltage distribution networks that is easy to install, characterized in that: A fire warning module is installed in the box (1), the fire warning module is connected to the fire prevention module via Bluetooth, and the fire warning module is used to alarm when a fire occurs in the power distribution equipment; The fire warning module includes: a temperature sensor (16), an intelligent analyzer (18), an alarm (19) and a smoke sensor (69); A temperature sensor (16) is fixedly connected to the top of the inner wall of the box (1); a side wall of the temperature sensor (16) is fixedly connected to one side of a first signal line (17); an intelligent analyzer (18) is fixedly connected to the other side of the first signal line (17); an alarm (19) is fixedly connected to the bottom of the outer wall of the intelligent analyzer (18); a side wall of the intelligent analyzer (18) is fixedly connected to one side of a second signal line (20); a smoke sensor (69) is fixedly connected to the top of the inner wall of the box (1).

3. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: A heat dissipation module is installed in the box (1), and the heat dissipation module is used to reduce the working environment temperature of the power distribution equipment; The heat dissipation module comprises: a second motor (22), a sliding block (25), a third motor (26), a heat dissipation fan (27) and a heat dissipation slot (28); The side wall of the box body (1) is symmetrically provided with a plurality of heat dissipation grooves (28); the outlet height of the heat dissipation grooves (28) on the inner wall of the box body (1) is higher than that of the outer wall of the box body (1); a first bracket (21) is fixedly connected to the side of the inner wall of the box body (1); a second motor (22) is fixedly connected to the bottom of the outer wall of the first bracket (21); a second rotating shaft (23) is installed at the bottom of the second motor (22); a first fixing block (24) is sleeved on the bottom of the outer wall of the second rotating shaft (23); the side wall of the first fixing block (24) is fixedly connected to the box body (1); a sliding block (25) is sleeved on the bottom of the outer wall of the second rotating shaft (23); the thread of the second rotating shaft (23) matches the thread of the sliding block (25); a third motor (26) is fixedly connected to the side wall of the sliding block (25); and the third motor (26) is connected to a heat dissipation fan (27) via the rotating shaft.

4. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: The box body (1) is provided with a cleaning module, which is used to clean dust and debris outside the heat dissipation slot (28); The cleaning module comprises: a fourth motor (31), a third rotating shaft (32), a scraper (34) and a fourth rotating shaft (35); The outer wall of the box body (1) is symmetrically fixedly connected with a second bracket (30), the side wall of the second bracket (30) is fixedly connected with a fourth motor (31), the side wall of the fourth motor (31) is mounted with a third rotating shaft (32), the side wall of the third rotating shaft (32) is sleeved with a second fixing block (33), the outer wall of the second fixing block (33) is fixedly connected with the box body (1), the outer wall of the third rotating shaft (32) is sleeved with a scraper (34), the thread of the third rotating shaft (32) matches the thread of the scraper (34), the side part of the outer wall of the box body (1) is symmetrically fixedly connected with a third fixing block (66), the third fixing block (66) is sleeved on the outer wall of the fourth rotating shaft (35), the outer wall of the fourth rotating shaft (35) is sleeved with the scraper (34), and the scraper (34) is in contact with the box body (1).

5. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: The inner wall of the box body (1) is symmetrically fixedly connected with a connecting rod (14), the outer wall of the connecting rod (14) is fixedly connected with a moving rod (15), the outer wall of the moving rod (15) is sleeved with a first moving shaft (47), the side wall of the first moving shaft (47) is installed with a first fastening bolt (48), the first fastening bolt (48) is in contact with the moving rod (15), the side wall of the first moving shaft (47) is fixedly connected with a mounting plate (29), and the mounting plate (29) is symmetrically provided with moving grooves (54), the moving grooves (54) is sleeved on the outer wall of the first connecting block (49); the side wall of the first connecting block (49) is fixedly connected to the first spring (53); the side wall of the first spring (53) is fixedly connected to the mounting plate (29); the side wall of the first connecting block (49) is fixedly connected to the second connecting block (52); the bottom of the outer wall of the second connecting block (52) is fixedly connected to the bottom plate (51); the outer wall of the second connecting block (52) is fixedly connected to the side plate (50); and the bottom of the outer wall of the side plate (50) is fixedly connected to the bottom plate (51).

6. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: A universal wheel (13) is installed at the bottom of the outer wall of the box body (1), and a base (2) is installed on the outer wall of the box body (1). A placement groove (63) is symmetrically opened at the top of the outer wall of the base (2), and the universal wheel (13) is located in the placement groove (63).

7. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: The box body (1) has a first groove (36) symmetrically formed on the side wall, the first groove (36) being sleeved on the outer wall of the positioning block (37), the base (2) has a second groove (41) symmetrically formed on the side wall, the second groove (41) being sleeved on the outer wall of the positioning block (37), the side wall of the positioning block (37) being fixedly connected to a first limit block (39), the side wall of the first limit block (39) being fixedly connected to a second spring (40), the second spring (40) being installed in the second groove (41), the side wall of the second spring (40) being fixedly connected to the base (2), the outer wall of the positioning block (37) A third groove (38) is formed on the top of the wall, a fourth groove (45) is formed on the base (2), the fourth groove (45) is communicated with the second groove (41), the fourth groove (45) is sleeved on the outer wall of the pressing block (42), a second limiting block (46) is fixedly connected to the side wall of the pressing block (42), a third spring (44) is fixedly connected to the bottom of the outer wall of the second limiting block (46), a roller (68) is installed at the bottom of the pressing block (42), the roller (68) is located above the third groove (38), and a rubber ring (43) is sleeved on the outer wall of the pressing block (42).

8. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 1 is characterized in that: The bottom of the box body (1) is provided with a buffer groove (64), the buffer groove (64) is sleeved on the outer wall of the universal wheel (13), the top of the outer wall of the universal wheel (13) is fixedly connected with a fourth spring (65), the fourth spring (65) is installed in the buffer groove (64), the top of the outer wall of the fourth spring (65) is fixedly connected with the box body (1), the side wall of the universal wheel (13) is fixedly connected with a third limit block (62), the box body (1) is provided with a limit groove (61), the limit groove (61) is communicated with the buffer groove (64), and the limit groove (61) is sleeved on the outer wall of the third limit block (62).

9. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 2 is characterized in that: The temperature sensor (16) is connected to the second motor (22), the third motor (26) and the fourth motor (31) via Bluetooth.

10. The multifunctional protection device for medium and low voltage distribution networks that is easy to install according to claim 5, characterized in that: The outer wall of the moving rod (15) is sleeved with a second moving shaft (55), and a second fastening bolt (67) is installed on the side wall of the second moving shaft (55). The second fastening bolt (67) contacts the moving rod (15). The outer wall of the second moving shaft (55) is symmetrically fixedly connected with a connecting plate (56), and the outer wall of the connecting plate (56) is installed with a connecting shaft (57). The outer wall of the connecting shaft (57) is installed with a wire management plate (58), and a wire management groove (59) is provided on the wire management plate (58). The side wall of the wire management plate (58) is fixedly connected with a rubber plate (60).

Images