Distribution line fault automatic diagnosis isolation device

Abstract

The invention relates to the technical field of circuit protection, in particular to a distribution line fault automatic diagnosis and isolation device.An equipment body and a positioning plate are fixedly connected through a limiting mechanism, a limiting base is arranged at the top of the equipment body, and the limiting base is rotationally connected with a control switch through a first rotating shaft; and a storage groove is formed in the top of the equipment body, the storage groove is rotationally connected with an air storage tank through a second rotating shaft, a driving roller is arranged at the end of the first rotating shaft, and a driven roller is arranged at the end of the second rotating shaft. When the equipment body needs to be installed, the adjusting button is rotated, the adjusting button drives the first transmission rod and the second transmission rod to rotate, the second transmission rod drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the first transmission rod to rotate, the first transmission rod drives the two sliding seats to get close to each other or be separated from each other, and therefore rapid connection between the positioning plate and the equipment body is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit protection, and in particular to an automatic diagnosis and isolation device for distribution line faults. Background Art

[0002] Power transmission and distribution refers to power transmission, transformation and distribution. During power transmission and distribution, the circuit needs to be protected by a leakage protector. The leakage protector is referred to as a leakage switch. The leakage protector is generally installed in a wiring box. It is mainly used to protect against electric shock when a leakage fault occurs in the equipment and to protect people from fatal electric shock. It has overload and short-circuit protection functions and can be used to protect the line or motor from overload and short circuit. However, the installation of leakage protectors in the prior art has the following problems:

[0003] In the prior art, the upper and lower sides of the leakage protector are mostly provided with mounting holes, and the upper and lower sides of the leakage protector are fixed on the mounting panel by manually screwing a plurality of screws. However, due to the small size and large number of screws, the installation and fixing of the leakage protector is relatively troublesome, the installation efficiency is low, and the complexity of manual operation is increased; the traditional leakage protector can cut off the circuit when the circuit is overloaded or short-circuited, but lacks a quick and effective means to deal with the problem of line fire caused by electrical faults. Once a fire occurs in the distribution box, the electrical equipment may aggravate the spread of the fire due to the inability to extinguish the fire in time, resulting in serious economic losses and even safety hazards.

[0004] In view of the above problems, there is an urgent need for a device that can be quickly installed and has automatic fire detection and extinguishing functions to improve equipment installation efficiency and ensure the safety of the power transmission and distribution process. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problem and to propose an automatic diagnosis and isolation device for distribution line faults.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A distribution line fault automatic diagnosis and isolation device comprises a device body, a positioning plate and a limiting mechanism, characterized in that slots are provided on both sides of the positioning plate, the limiting mechanism comprises a first transmission mechanism and two sliding components, the first transmission mechanism is arranged on the device body, the sliding components are threadedly connected to the two ends of the first transmission mechanism, and the two sliding components can approach or move away from each other under the action of the first transmission mechanism, so that the two sliding components can be inserted into or pulled out of the slots at the same time.

[0008] Preferably, the first transmission mechanism comprises a first transmission rod, the threads at two ends of the first transmission rod are in opposite directions, and the sliding assembly is threadedly connected to the first transmission rod.

[0009] Preferably, the first transmission mechanism further includes a fixed seat, the first transmission rod is rotatably connected to the fixed seat, the fixed seat is fixedly connected to the equipment body, and the sliding assembly is slidably disposed through the fixed seat.

[0010] Preferably, the first transmission mechanism further includes a second transmission rod, a worm, a worm wheel and an adjusting button, the second transmission rod is connected to the adjusting button, the second transmission rod is provided with the worm, and the first transmission rod is provided with the worm wheel meshing with the worm.

[0011] Preferably, the sliding assembly comprises a sliding seat and a clamping block, the clamping block is fixedly connected to the sliding seat, and the clamping block is adapted to the clamping slot.

[0012] Preferably, a control switch, a gas tank and a second transmission mechanism are provided on the device body, the control switch and the gas tank are linked through the second transmission mechanism, the gas tank is provided with a trigger mechanism, a groove is opened on the device body, the gas tank is embedded in the groove, and the trigger mechanism abuts against the inner wall of the groove, and when the control switch is turned on, the second transmission mechanism drives the gas tank.

[0013] Preferably, the trigger mechanism includes a piston assembly, a vent cylinder is fixed to the side wall of the gas tank, the vent cylinder is connected to the gas tank, the piston assembly is elastically connected between the gas tank and the inner wall of the groove, and the piston assembly can block the vent cylinder.

[0014] Preferably, the piston assembly includes a limit plate, a limit column, a piston, a limit rod, a limit protrusion and a spring. The outer wall of the vent cylinder is axially provided with a limit cylinder, the limit rod is slidably connected to the limit cylinder, and the spring is elastically connected to the limit rod and the limit cylinder.

[0015] Preferably, the trigger mechanism further comprises a roller, the roller is rotatably connected to an end of the piston assembly away from the gas storage tank, and the roller can abut against the inner side wall of the groove.

[0016] Preferably, the second transmission mechanism includes a first rotating shaft, a driving roller, a second rotating shaft, a driven roller and a transmission belt, the control switch is fixedly connected to the first rotating shaft, the air storage tank is fixedly connected to the second rotating shaft, and the driving roller and the driven roller are connected via the transmission belt.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] The present invention realizes the rapid connection between the positioning plate and the device body by setting a limiting mechanism at the bottom of the device body. The limiting mechanism includes a first transmission rod, a worm wheel, a worm and a slide seat. The second transmission rod is driven to rotate by rotating the adjustment knob, and then the first transmission rod is driven to rotate by the meshing of the worm and the worm wheel. The first transmission rod drives the slide seat to move closer or separate from each other. The device body can be quickly fixed on the positioning plate by cooperating with the block, effectively solving the cumbersome installation problem caused by traditional manual tightening of screws one by one, and greatly improving the installation efficiency.

[0019] The present invention realizes the automatic detection and fire extinguishing functions of distribution line fires by providing a trigger mechanism and a gas tank. When the device is working, when a circuit failure occurs in the distribution box and causes combustion, the control switch automatically disconnects the circuit first, and at the same time, the driving roller drives the driven roller to rotate through the transmission belt, and the driven roller further drives the gas tank to rotate. When the gas tank rotates to a specific angle, the trigger mechanism causes the vent cylinder to leave the arc groove, triggering the spring to reset and quickly pull out the piston, and the liquid carbon dioxide is quickly released and gasified, filling the entire distribution box to prevent the fire from spreading. Through the above structural design, the automation and high efficiency of the fire extinguishing function are achieved.

[0020] The trigger mechanism of the present invention cooperates with the roller through the arc groove to ensure that the gas tank rotates stably at the specified position; at the same time, the design of the limit protrusion and the spring can quickly respond to the fire signal to ensure the timeliness and effectiveness of the release of the fire extinguishing gas. Through the reasonable arrangement of the gas tank, the real-time monitoring and processing of the distribution line fire can be realized, which significantly improves the safety of the distribution line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A side structural schematic diagram of an isolation device provided according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic cross-sectional structure diagram of a device body provided according to an embodiment of the present invention is shown.

[0023] Figure 3 A schematic structural diagram of a limiting mechanism provided according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic diagram of the structure of a gas storage tank combined with a control switch according to an embodiment of the present invention is shown.

[0025] Figure 5 A schematic diagram of the combined structure of a limiting rod and a limiting cylinder provided according to an embodiment of the present invention is shown.

[0026] Figure 6 A schematic cross-sectional structure diagram of a limiting cylinder provided according to an embodiment of the present invention is shown.

[0027] Legend:

[0028] 1. Equipment body; 2. Positioning plate; 3. Limit seat; 4. Control switch; 5. First rotating shaft; 6. Driving roller; 7. Storage slot; 8. Arc groove; 9. Gas storage tank; 10. Second rotating shaft; 11. Driven roller; 12. Transmission belt; 13. Breather; 14. Limit plate; 15. Limit protrusion; 16. Positioning seat; 17. Roller; 18. Limit rod; 19. Limit cylinder; 20. Spring; 21. Limit column; 22. Piston; 23. Fixed seat; 24. First transmission rod; 25. Sliding seat; 26. Block; 27. Worm gear; 28. Second transmission rod; 29. ​​Worm; 30. Adjustment button; 31. Slot. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-6 , the present invention provides a technical solution:

[0031] A distribution line fault automatic diagnosis and isolation device comprises a device body 1, a positioning plate 2 and a limiting mechanism, wherein slots 31 are provided on both sides of the positioning plate 2, the device body 1 and the positioning plate 2 are connected via the limiting mechanism, the limiting mechanism comprises a first transmission mechanism and two sliding components, wherein the first transmission mechanism is arranged on the device body, the sliding components are threadedly connected to the two ends of the first transmission mechanism, the two sliding components can approach or move away from each other under the action of the first transmission mechanism, so that the two sliding components can be inserted into or withdrawn from the slots 31 at the same time, the first transmission mechanism comprises a first transmission rod 24, a fixed seat 23, a second transmission rod 28, a worm 29, a worm wheel 27 and an adjusting button 30, and the sliding component comprises a slide seat 25 and a block 26.

[0032] A limit seat 3 is arranged on the top of the equipment body 1, and the limit seat 3 is rotatably connected to the control switch 4 through the first rotating shaft 5. A storage slot 7 is opened on the top of the equipment body 1, and the storage slot 7 is rotatably connected to the gas tank 9 through the second rotating shaft 10. A driving roller 6 is arranged at the end of the first rotating shaft 5, and a driven roller 11 is arranged at the end of the second rotating shaft 10. The driving roller 6 and the driven roller 11 are connected by a transmission belt 12, and a trigger mechanism is arranged between the gas tank 9 and the storage slot 7; liquid carbon dioxide is stored in the gas tank 9. When a circuit in the distribution box fails and causes the circuit to burn, the control switch 4 first rotates to disconnect the circuit, and the driving roller 6 drives the driven roller 11 to rotate through the transmission belt 12, and the driven roller 11 drives the gas tank 9 to rotate. When the gas tank 9 rotates a certain angle, the trigger mechanism works, and the carbon dioxide in the gas tank 9 will be released to prevent the line from burning, thereby preventing the spread of fire.

[0033] Specifically, Figure 4 , Figure 5 and Figure 6 As shown, the trigger mechanism includes a vent cylinder 13 arranged on the gas storage tank 9, a limiting column 21 is slidably connected inside the vent cylinder 13, a limiting plate 14 is arranged at one end of the limiting column 21, a piston 22 is arranged at the other end of the limiting column 21, a positioning seat 16 is arranged on the end face of the limiting plate 14, a roller 17 is rotatably connected to the positioning seat 16, an arc groove 8 is opened on the inner wall of the storage groove 7, and the roller 17 abuts against the bottom surface of the arc groove 8; the arc groove 8 takes the second rotating shaft 10 as the center, and under normal conditions, the vent cylinder 13 is located in the arc groove 8, the roller 17 abuts against the bottom surface of the arc groove 8, and the piston 22 blocks the vent cylinder 13 to prevent the liquid carbon dioxide from being released.

[0034] Specifically, Figure 5 and Figure 6 As shown, a limiting cylinder 19 is provided on the side of the vent cylinder 13, a spring 20 is provided inside the limiting cylinder 19, a limiting protrusion 15 is provided on the side of the limiting plate 14, a limiting rod 18 is provided at the bottom of the limiting protrusion 15, the limiting rod 18 and the limiting cylinder 19 are slidably connected, and one end of the spring 20 is fixedly connected to the limiting rod 18; under normal circumstances, the spring 20 is in a compressed state, and after the vent cylinder 13 leaves the arc groove 8, the spring 20 is reset, and the piston 22 is quickly pulled out of the vent cylinder 13, and the liquid carbon dioxide is gasified and discharged from the gas storage tank 9, which is used to prevent the circuit in the distribution box from catching fire.

[0035] Specifically, Figure 3As shown, the limiting mechanism includes a fixed seat 23 arranged on the bottom surface of the equipment body 1, the inner side of the fixed seat 23 is rotatably connected with a first transmission rod 24, both ends of the first transmission rod 24 are respectively provided with slide seats 25, the bottom of the slide seat 25 is provided with a clamping block 26, the clamping block 26 penetrates the fixed seat 23 and is slidably connected with the fixed seat 23, and a clamping groove 31 adapted to the clamping block 26 is opened on the side wall of the positioning plate 2; two groups of limiting mechanisms are provided, and the two groups of limiting mechanisms are symmetrically arranged on both sides of the equipment body 1. When the clamping block 26 falls into the clamping groove 31, the equipment is fixed.

[0036] Specifically, Figure 1 As shown, threads are provided at both ends of the first transmission rod 24, and the threads at both ends of the first transmission rod 24 are screwed in opposite directions. The slide 25 is threadedly connected to the first transmission rod 24, and the bottom surface of the equipment body 1 is rotatably connected with the second transmission rod 28. The top of the second transmission rod 28 is provided with an adjusting button 30, and a worm 29 is provided on the second transmission rod 28. The first transmission rod 24 is provided with a worm wheel 27 meshing with the worm 29; the first transmission rod 24 passes through the slide 25 and is threadedly connected to the slide 25. The adjusting button 30 is rotated, and the adjusting button 30 drives the first and second transmission rods 28 to rotate, the second transmission rod 28 drives the worm 29 to rotate, the worm 29 drives the worm wheel 27 to rotate, and the worm wheel 27 drives the first transmission rod 24 to rotate, and the first transmission rod 24 drives the two slides 25 to approach or separate from each other, so as to realize the connection between the positioning plate 2 and the equipment body 1.

[0037] In summary, the present embodiment provides an automatic diagnosis and isolation device for distribution line faults. When the device body 1 needs to be installed, the adjusting button 30 is rotated, the adjusting button 30 drives the first and second transmission rods 28 to rotate, the second transmission rod 28 drives the worm 29 to rotate, the worm 29 drives the worm wheel 27 to rotate, the worm wheel 27 drives the first transmission rod 24 to rotate, and the first transmission rod 24 drives the two slides 25 to approach or separate from each other, so as to achieve the connection between the positioning plate 2 and the device body 1. When a fault occurs in the distribution box, causing the circuit to burn, the control switch 4 first rotates to disconnect the circuit, the driving roller 6 drives the driven roller 11 to rotate through the transmission belt 12, and the driven roller 11 drives the gas tank 9 to rotate. When the gas tank 9 rotates a certain angle, the vent cylinder 13 leaves the arc groove 8, the spring 20 resets, and the piston 22 is quickly pulled out of the vent cylinder 13, the liquid carbon dioxide is gasified and discharged from the gas tank 9, and quickly fills the distribution box to prevent the line from burning, thereby preventing the spread of fire.

[0038] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A distribution line fault automatic diagnosis and isolation device, comprising a device body (1), a positioning plate (2) and a limiting mechanism, characterized in that: The positioning plate (2) is provided with a card slot (31) on both sides, and the limiting mechanism includes a first transmission mechanism and two sliding components, the first transmission mechanism is arranged on the equipment body (1), the sliding components are threadedly connected to the two ends of the first transmission mechanism, and the two sliding components can approach or move away from each other under the action of the first transmission mechanism, so that the two sliding components can be inserted into or withdrawn from the card slot (31) at the same time.

2. The automatic diagnosis and isolation device for distribution line fault according to claim 1 is characterized in that: The first transmission mechanism comprises a first transmission rod (24), the threads of two ends of the first transmission rod (24) are in opposite directions, and the sliding assembly is threadedly connected to the first transmission rod (24).

3. The automatic diagnosis and isolation device for distribution line fault according to claim 2 is characterized in that: The first transmission mechanism further comprises a fixed seat (23), the first transmission rod (24) is rotatably connected to the fixed seat (23), the fixed seat (23) is fixedly connected to the device body (1), and the sliding assembly is slidably disposed through the fixed seat (23).

4. The automatic diagnosis and isolation device for distribution line fault according to claim 2 is characterized in that: The first transmission mechanism further comprises a second transmission rod (28), a worm (29), a worm wheel (27) and an adjusting button (30); the second transmission rod (28) is connected to the adjusting button (30); the second transmission rod (28) is provided with the worm (29); and the first transmission rod (24) is provided with the worm wheel (27) meshing with the worm (29).

5. The automatic diagnosis and isolation device for distribution line fault according to claim 1 is characterized in that: The sliding assembly comprises a sliding seat (25) and a clamping block (26); the clamping block (26) is fixedly connected to the sliding seat (25); and the clamping block (26) is adapted to the clamping groove (31).

6. A distribution line fault automatic diagnosis and isolation device according to any one of claims 1 to 5, characterized in that: The device body (1) is provided with a control switch (4), a gas storage tank (9) and a second transmission mechanism. The control switch (4) and the gas storage tank (9) are linked via the second transmission mechanism. The gas storage tank (9) is provided with a trigger mechanism. A groove (7) is provided on the device body (1). The gas storage tank (9) is embedded in the groove (7). The trigger mechanism abuts against the inner wall of the groove (7). When the control switch (4) is turned on, the second transmission mechanism drives the gas storage tank (9).

7. The automatic diagnosis and isolation device for distribution line fault according to claim 6 is characterized in that: The trigger mechanism comprises a piston assembly, a vent cylinder (13) is fixed to the side wall of the gas storage tank (9), the vent cylinder (13) is connected to the gas storage tank (9), the piston assembly is elastically connected between the gas storage tank (9) and the inner side wall of the groove (7), and the piston assembly can block the vent cylinder (13).

8. The automatic diagnosis and isolation device for distribution line faults according to claim 7 is characterized in that: The piston assembly comprises a limit plate (14), a limit column (21), a piston (22), a limit rod (18), a limit protrusion (15) and a spring (20); a limit cylinder (19) is axially provided on the outer wall of the vent cylinder (13); the limit rod (18) is slidably connected to the limit cylinder (19); and the spring (20) is elastically connected to the limit rod (18) and the limit cylinder (19).

9. The automatic diagnosis and isolation device for distribution line fault according to claim 7, characterized in that: The trigger mechanism further comprises a roller (17), the roller (17) being rotatably connected to an end of the piston assembly away from the gas storage tank (9), and the roller (17) being capable of abutting against the inner side wall of the groove (7).

10. The automatic diagnosis and isolation device for distribution line fault according to claim 6, characterized in that: The second transmission mechanism comprises a first rotating shaft (5), a driving roller (6), a second rotating shaft (10), a driven roller (11) and a transmission belt (12); the control switch (4) is fixedly connected to the first rotating shaft (5); the gas storage tank (9) is fixedly connected to the second rotating shaft (10); and the driving roller (6) and the driven roller (11) are transmission-connected via the transmission belt (12).

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