A self-closing intelligent fuse

Abstract

The present invention relates to the field of fuses, and discloses a self-closing intelligent fuse, which solves the problems of the existing drop-out fuses that need frequent replacement of fuses, cumbersome operation, inconvenience in cleaning the insulating porcelain column, and difficulty and heavy workload in operation and maintenance. The following scheme is proposed, which includes a fuse porcelain column, a conductive cylinder, a sleeve, a connection frame, a sliding frame, an arc frame, a rotating ring, a cleaning brush, and a circular ring. A driving component 1 is arranged between the two circular rings, and the driving component 1 is used to drive the arc frame sleeve conductive cylinder to open and close the switch, and when the conductive cylinder continues to be driven to rotate away from the fuse porcelain column in the open state, the two circular rings are synchronously driven away from each other to drive the cleaning brush to rotate until it fits with the surface of the fuse porcelain column. A driving component 2 is arranged on the sleeve, and the driving component 2 is used to drive the circular ring to rotate. The present fuse can realize intelligent and automatic opening and closing, and is convenient for cleaning and operation and maintenance, and has a good cleaning effect.

Description

Technical Field

[0001] The invention relates to the field of fuses, in particular to a self-closing intelligent fuse. Background Art

[0002] A fuse is an electrical device that generates heat to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a simple and effective short-circuit protection device that is widely used in high and low voltage power distribution systems and control systems as well as electrical equipment.

[0003] With the development of technology, fuses have also developed into many types, among which drop-out fuses are a representative type and are widely used in the protection of 10kV distribution line branch lines. However, the principle of drop-out fuses is that the fuse tube forms a closed position after the fuse is tensioned. When the short-circuit current passes through the fuse, the fuse quickly melts and forms an arc. The steel paper tube lined in the fuse tube generates a large amount of gas under the action of the arc. Because the upper end of the fuse tube is sealed, the gas sprays to the lower end and blows out the arc 124. As the fuse melts, the upper and lower moving contacts of the fuse tube lose the tightening force of the fuse. Under the action of the fuse tube's own gravity and the upper and lower static contact springs, the fuse tube quickly falls, disconnecting the circuit and cutting off the faulty section of the line or the faulty equipment.

[0004] However, when using drop-out fuses, once the fuse blows, it needs to be replaced to ensure subsequent use. As a result, the fuse needs to be replaced after an overload blows, which makes operation and maintenance too cumbersome. In addition, when replacing the fuse, the fuse tube must be removed from the 10kV distribution line branch line, which also increases the risk of the replacement operation.

[0005] At the same time, drop-out fuses generally have larger insulating porcelain columns, and the insulating porcelain columns are used in outdoor environments for a long time, and dust, dirt, bird droppings, salt spray and other pollutants are easily accumulated on their surfaces. These pollutants will reduce the insulation performance of the porcelain column. For example, dust and dirt may form a conductive channel in a humid environment, increasing the leakage current on the surface of the porcelain column. When the leakage current increases to a certain extent, it may cause flashover on the surface of the porcelain column, that is, the air on the surface of the porcelain column is broken down to form a discharge channel, which will seriously affect the normal operation of the fuse and may even cause a short circuit fault. Therefore, it is also necessary to clean the insulating porcelain column regularly, resulting in that after the traditional drop-out fuse fuse is blown, while replacing the fuse, it is also necessary to clean the insulating porcelain column, or it is necessary to shut down the 10kV distribution line regularly to facilitate the staff to climb up for operation and maintenance and cleaning, which greatly increases the difficulty of staff operation and maintenance. Therefore, a self-closing intelligent fuse is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a self-closing intelligent fuse, which solves the problems of the existing drop-out fuse that the fuse needs to be replaced frequently, the operation is cumbersome, and it is inconvenient to clean the insulating porcelain column, and the operation and maintenance are difficult and labor-intensive.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a self-closing intelligent fuse, comprising a fuse porcelain column, a conductive cylinder rotatably connected to the fuse porcelain column for circuit conduction, a sleeve disk is centrally mounted on the fuse porcelain column, and a connecting frame is connected to the sleeve disk, a sliding frame is slidably connected in the connecting frame, and the sliding frame is rotatably connected to arc frames on both sides of the conductive cylinder for clamping the conductive cylinder;

[0008] The two axial ends of the sleeve disc are rotatably connected with a rotating ring, and the rotating ring is rotatably connected with a cleaning brush through a spring hinge, and the connecting frame is slidably connected with a circular ring that fits and slides with the cleaning brush along both axial sides of the sleeve disc;

[0009] A driving component 1 is arranged between the two circular rings, and the driving component 1 is used to drive the arc frame sleeve conductive cylinder to open and close, and when in the open state, the conductive cylinder continues to be driven to rotate away from the fuse porcelain column, and the two circular rings are synchronously driven away from each other to drive the cleaning brush to rotate until it fits with the surface of the fuse porcelain column. A driving component 2 is arranged on the sleeve, and the driving component 2 is used to drive the circular ring to rotate.

[0010] Preferably, the connecting frame is symmetrically arranged along the radial sides of the sleeve disc, the rotating ring is rotatably connected to a rotating plate through a spring hinge, the cleaning brush bolt is installed on the rotating plate, and the rotating plate is also connected to a guide block, the circular ring slides in fit with the guide block, and annular grooves are provided on the upper and lower sides of the sleeve disc, and the rotating rings are rotatably mounted in the annular grooves on their respective sides and extend to the surface of the sleeve disc.

[0011] Preferably, the driving component 1 includes a slide rail, a slider, a guide slide rod, a hinge seat, a slide rod seat 2, a slide plate, and a top block. The slide rail is connected to the connecting frame, the slider is slidably connected in the slide rail, the slide frame is connected to the slider, the guide slide rod is connected to the connecting frame, the circular ring sliding sleeve is arranged on the outer side of the guide slide rod, the hinge seat is connected to the circular ring, the slide rod seat 2 is connected to the connecting frame, the slide plate sliding sleeve is arranged on the outer side of the slide rod seat 2, a rotating rod is rotatably connected between the slide plate and the hinge seat through a spring hinge, and the top block is connected to the slide frame and fits and contacts with the slide plate.

[0012] Preferably, a spring 2 is sleeved on the slide rod seat 2, and the two ends of the spring 2 are respectively connected to the slide plate and the hinge seat. A sleeve is also connected to the circular ring, and is slidably sleeved with the guide slide rod through the sleeve. A mounting seat is connected to the slide rail.

[0013] Preferably, the sliding frame slides through the connecting frame, and the sliding frame is connected to a sliding rod seat on both sides of the conductive tube, a sliding seat is slidingly sleeved on the sliding rod seat, and an arc frame for clamping the conductive tube is connected to the sliding seat for damping rotation, and a spring is sleeved on the sliding rod seat, and the two ends of the spring are respectively connected to the sliding rod seat and the arc frame.

[0014] Preferably, an inclined block is connected inside the arc frame, an L-shaped plate is connected to the slide rail, the L-shaped plate extends to the side of the conductive cylinder away from the fuse porcelain column, and a top rod is connected at the extended end to slide against the inclined block.

[0015] Preferably, the connecting frame is connected to a bracket, the bracket is connected to a mounting plate, the mounting plate is connected to a square rubber bellows sleeved on the outside of the cleaning brush, and the other end of the square rubber bellows is connected to a square frame, the mounting plate is rotatably connected to a rotating shaft, a reel and a gear are mounted on the rotating shaft, the sliding frame is connected to a rack, the rack is meshed with the gear, and a pull rope is connected between the square frame and the reel.

[0016] Preferably, the reels are symmetrically mounted on both ends of the rotating shaft, the gears are on the sides of the two reels away from each other, and both sides of the frame are connected with pull ropes, and each of the pull ropes is connected to the reel on its own side.

[0017] Preferably, a slide rod seat three is connected to the mounting plate, the square frame sliding sleeve is arranged on the slide rod seat three, the outer side of the slide rod seat three is sleeved with a spring three, and the two ends of the spring three are respectively connected to the mounting plate and the square frame.

[0018] Preferably, the second driving component includes a gear ring, an electric motor, and a driving gear, the gear ring is connected to the rotating ring, the electric motor is installed on the sleeve, and the output end of the electric motor is connected to the driving gear, and the driving gear is meshingly connected to the gear ring.

[0019] Compared with the related art, the self-closing intelligent fuse provided by the present invention has the following beneficial effects:

[0020] 1. The present invention drives the slide frame to slide through the slide rail, and then pushes the arc frame to slide, driving the conductive cylinder to rotate, so as to realize the closing and opening between the conductive cylinder and the fuse porcelain column, and continue to push the conductive cylinder to rotate away from the fuse porcelain column in the open state, so as to realize the switching between the conductive cylinder and the fuse porcelain column. In this process, the rack will also drive the gear and the reel to rotate to reel the pull rope, fold the square rubber bellows to a state of being separated from the cleaning brush, so as to cancel the dust cover of the square rubber bellows on the cleaning brush. At this time, the top block just fits with the slide plate, and the inclined block fits with the top rod, so that the closing and opening of the conductive cylinder and the fuse porcelain column can be intelligently and actively controlled, avoiding the replacement operation of the fuse;

[0021] 2. The present invention drives the slide frame to slide by the slide rail, and when the conductive cylinder is pushed away from the fuse porcelain column from the off state, the square rubber bellows continues to fold, and the top block will push the slide plate to slide, driving the upper and lower rings to move away from each other, so as to push the upper and lower rotating plates and the cleaning brush to rotate from the horizontal state to the vertical state that fits the surface of the fuse porcelain column, and then, under the drive of the driving component 2, the surface of the fuse porcelain column can be cleaned, so that the cleaning can be realized by braking, and the cleaning brush can be protected by a dust cover when it is not cleaned;

[0022] 3. The present invention drives the slide frame to slide by the slide rail, and when the conductive tube is pushed from the off state to be further away from the fuse porcelain column, it will also drive the inclined block to collide with the push rod, so that the push rod will push the inclined block and then drive the arc frames on both sides to move away from each other, eliminating the clamping sleeve of the conductive tube. Under the action of gravity, the conductive tube naturally hangs down, making it convenient to remove the conductive tube for operation and maintenance, greatly facilitating the operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the structure of a self-closing intelligent fuse of the present invention.

[0024] Figure 2 This is a cross-sectional view of the front structure of a self-closing intelligent fuse of the present invention.

[0025] Figure 3 The cross-sectional view is a top view of the structure of a self-closing intelligent fuse of the present invention.

[0026] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0027] Figure 5 The present invention is a schematic structural diagram of a porcelain column and a conductive tube of a gas-filled isolated fuse.

[0028] Figure 6 The present invention is a schematic diagram of the related structure on a sleeve disk of a driving component of a self-closing intelligent fuse.

[0029] Figure 7 The present invention is a structural schematic diagram of the connection between a connection frame, a bracket and a sleeve disc of a self-closing intelligent fuse.

[0030] Figure 8 The present invention is a schematic structural diagram of a driving component 1 of a self-closing intelligent fuse.

[0031] Fig. 9 The schematic diagram of the square rubber bellows of a self-closing intelligent fuse and its related structures of the present invention.

[0032] Fig.10 This is a schematic diagram of the relevant structures inside a square rubber bellows of a self-closing intelligent fuse of the present invention.

[0033] In the figure: 1, fuse porcelain column; 2, conductive cylinder; 3, sleeve disc; 4, connecting frame; 5, slide rail; 6, mounting seat; 7, slider; 8, slide frame; 9, slide rod seat 1; 10, slide seat; 11, arc frame; 12, inclined block; 13, spring 1; 14, L-shaped plate; 15, push rod; 16, annular groove; 17, rotating ring; 18, rotating plate; 19, cleaning brush; 20, guide block; 21, guide slide rod; 22, circular ring; 23. Sleeve; 24. Articulated seat; 25. Sliding rod seat 2; 26. Spring 2; 27. Rotating rod; 28. Slide plate; 29. ​​Top block; 30. Gear ring; 31. Electric motor; 32. Driving gear; 33. Bracket; 34. Mounting plate; 35. Square rubber bellows; 36. Frame; 37. Sliding rod seat 3; 38. Spring 3; 39. Rotating shaft; 40. Reel; 41. Gear; 42. Rack; 43. Pull rope. DETAILED DESCRIPTION

[0034] 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.

[0035] Embodiment 1:

[0036] See also Figure 1-9 The present invention provides a technical solution: a self-closing intelligent fuse, comprising a fuse porcelain column 1, a conductive cylinder 2 rotatably connected to the fuse porcelain column 1 for circuit conduction, a sleeve 3 is centrally mounted on the fuse porcelain column 1, and connecting frames 4 are symmetrically connected to both sides of the sleeve 3 along the radial direction, a sliding frame 8 is slidably connected in the connecting frame 4, and the sliding frame 8 is rotatably connected to arc frames 11 for clamping the conductive cylinder 2 on both sides of the conductive cylinder 2, such as Figure 5 As shown, the fuse porcelain column 1 is the insulating porcelain column of the existing drop-out type fuse, and the conductive cylinder 2 is the fuse tube of the existing drop-out type fuse. In the prior art, the lower end of the fuse tube is rotatably mounted on the insulating porcelain column, and the upper end is connected to the upper end electrode of the insulating porcelain column for opening and closing. The upper and lower ends of the insulating porcelain column are provided with electrodes for connecting with the circuit and the two ends of the fuse tube, and the arrangement of the fuse porcelain column 1 and the conductive cylinder 2 is the same as that of the prior art, and no further description is given;

[0037] Both ends of the sleeve disc 3 are rotatably connected with a swivel ring 17, and a cleaning brush 19 is rotatably connected to the swivel ring 17 through a spring hinge. The connecting frame 4 is slidably connected to both sides of the sleeve disc 3 and a circular ring 22 that fits and slides with the cleaning brush 19.

[0038] A driving component 1 is arranged between the two circular rings 22. The driving component 1 is used to drive the arc frame 11 to clamp the conductive tube 2 for opening and closing. When the conductive tube 2 is continued to be driven to rotate away from the fuse porcelain column 1 in the open state, the two circular rings 22 are synchronously driven away from each other to drive the cleaning brush 19 to rotate until it fits with the surface of the fuse porcelain column 1. A driving component 2 is arranged on the sleeve 3. The driving component 2 is used to drive the circular ring 22 to rotate.

[0039] Furthermore, the connecting frame 4 is symmetrically arranged along the radial sides of the sleeve disc 3, and the rotating ring 17 is rotatably connected to the rotating plate 18 through a spring hinge, and the cleaning brush 19 is bolted on the rotating plate 18, and the rotating plate 18 is also connected to the guide block 20, and the ring 22 slides in contact with the guide block 20. Annular grooves 16 are provided on the upper and lower sides of the sleeve disc 3, and the rotating rings 17 are rotatably sleeved in the annular grooves 16 on each side and extend to the surface of the sleeve disc 3, such as Figure 4 and 6 As shown, the cleaning brush 19 is installed on the rotating plate 18 by bolts, which is convenient for replacing the cleaning brush 19 to avoid the cleaning brush 19 sticking to a lot of dust during long-term use, thereby reducing the cleaning effect. The setting of the guide block 20 can make the cleaning brush 19, which is originally at a certain distance from the fuse porcelain column 1, completely fit with the surface of the fuse porcelain column 1. The setting of the annular groove 16 can make the rotation of the ring 22 on the sleeve 3 more stable.

[0040] Further, the driving component 1 includes a slide rail 5, a slider 7, a guide slide bar 21, a hinge seat 24, a slide bar seat 25, a slide plate 28, and a top block 29. The slide rail 5 is connected to the connecting frame 4, the slider 7 is slidably connected in the slide rail 5, the slide frame 8 is connected to the slider 7, the guide slide bar 21 is connected to the connecting frame 4, the ring 22 is slidably sleeved on the outer side of the guide slide bar 21, the hinge seat 24 is connected to the ring 22, the slide bar seat 25 is connected to the connecting frame 4, the slide plate 28 is slidably sleeved on the outer side of the slide bar seat 25, the slide plate 28 is rotatably connected to the hinge seat 24 by a rotating rod 27, and the top block 29 is connected to the slide frame 8 and fits and contacts with the slide plate 28, such as Figure 6 and 8As shown, the slide block 7 can be driven by the slide rail 5 and then the slide frame 8 can be driven to slide, so that the top block 29 on the slide frame 8 can contact the slide plate 28, pushing the upper and lower rings 22 away from each other, thereby overcoming the elastic force of the spring hinge at one end of the rotating plate 18, and pushing the upper and lower rotating plates 18 from the horizontal state to the vertical state that fits the side of the fuse porcelain column 1, and the slide rail 5 and the slide block 7 adopt the sliding method of the existing screw slide rail or linear roller guide rail to provide power for the sliding of the slide frame 8, and the elastic direction of the spring hinge on the rotating plate 18 is the direction in which the upper and lower rotating plates 18 rotate closer to each other.

[0041] Further, a spring 26 is sleeved on the slide bar seat 25, and the two ends of the spring 26 are respectively connected to the slide plate 28 and the hinge seat 24. The ring 22 is also connected to a sleeve 23, and is slidably sleeved with the guide slide bar 21 through the sleeve 23. The slide rail 5 is connected to a mounting seat 6. Figure 8 As shown, the setting of the spring 26 can provide sufficient elastic force for the upper and lower rings 22 to reset to each other after the top block 29 cancels the interference with the slide plate 28. The sleeve 23 can deepen the sleeve of the ring 22 and the guide slide rod 21, thereby increasing the stability of the ring 22 when sliding. The mounting seat 6 makes it convenient to install the entire mechanism in the existing circuit structure.

[0042] Further, the slide frame 8 slides through the connecting frame 4, and the slide frame 8 is connected to a slide rod seat 9 on both sides of the conductive tube 2. A slide seat 10 is slidably sleeved on the slide rod seat 9, and an arc frame 11 for clamping the conductive tube 2 is connected to the slide seat 10 in a damping rotation manner. A spring 13 is sleeved on the slide rod seat 9, and the two ends of the spring 13 are respectively connected to the slide rod seat 9 and the arc frame 11, as shown in FIG. Figure 8 As shown, when the sliding frame 8 is driven to slide, the arc frame 11 will drive the conductive cylinder 2 to rotate, thereby realizing opening and closing. The conductive cylinder 2 has different angles during the rotation of opening and closing, but the arc frame 11 is rotatably connected to the sliding seat 10, and can rotate with the conductive cylinder 2. The setting of the spring 13 can provide power for the arc frame 11 to clamp the conductive cylinder 2, and ensure that the clamping force therebetween is greater than the force of the conductive cylinder 2 against the upper end of the fuse porcelain column 1.

[0043] Furthermore, an inclined block 12 is connected to the arc frame 11, and an L-shaped plate 14 is connected to the slide rail 5. The L-shaped plate 14 extends to the side of the conductive cylinder 2 away from the fuse porcelain column 1, and is connected to a top rod 15 that slides against the inclined block 12 at the extended end. Figure 7 and 8As shown, when the sliding frame 8 drives the conductive tube 2 to switch from the closed state to the open state, the top block 29 will fit exactly with the sliding plate 28, and the top rod 15 will fit exactly with the inclined block 12. After that, if the sliding frame 8 is controlled to drive the conductive tube 2 to rotate away from the fuse porcelain column 1, the top rod 15 will contact with the inclined block 12, pushing the arc frames 11 on both sides to compress the spring 13 and move away from each other, and then the conductive tube 2 will naturally fall under the action of gravity, which is convenient for the subsequent removal, replacement, and maintenance of the conductive tube 2.

[0044] At the same time, even though the inclined block 12 rotates with the arc frame 11, its rotation angle is small, and the inclined block 12 is much thicker than the top rod 15, so they can still maintain effective fit, and the top rod 15 can also be pre-set to a reasonable angle for cooperation.

[0045] Further, the connecting frame 4 is connected to a bracket 33, the bracket 33 is connected to a mounting plate 34, the mounting plate 34 is connected to a square rubber bellows 35 sleeved on the outside of the cleaning brush 19, and the other end of the square rubber bellows 35 is connected to a square frame 36, the mounting plate 34 is rotatably connected to a rotating shaft 39, the rotating shaft 39 is sleeved with a reel 40 and a gear 41, the sliding frame 8 is connected to a rack 42, the rack 42 is meshed with the gear 41, and a pull rope 43 is connected between the square frame 36 and the reel 40, as shown in FIG. Fig. 9 As shown, during the sliding process of the integrated sliding of the sliding frame 8, the meshing of the rack 42 and the gear 41 can drive the reel 40 to rotate, and the pull rope 43 can be wound, and the square rubber bellows 35 is gradually folded. Specifically, when the sliding frame 8 drives the conductive tube 2 to rotate from the closed state to the open state, the square rubber bellows 35 is folded to the state of canceling the sleeve of the cleaning brush 19, that is, at this time, the top block 29 will fit exactly with the slide plate 28, and the top rod 15 will fit exactly with the inclined block 12. If the sliding frame 8 continues to drive the conductive tube 2 to rotate from the open state to the direction away from the fuse porcelain column 1, the square rubber bellows 35 will not hinder the rotation of the rotating plate 18 and the cleaning brush 19.

[0046] Further, the reels 40 are symmetrically mounted on both ends of the rotating shaft 39, and the gears 41 are located on the sides of the two reels 40 that are away from each other. A pull rope 43 is connected to both sides of the frame 36, and each pull rope 43 is connected to the reel 40 on one side thereof. Fig. 9 As shown, the arrangement of the pull ropes 43 on both sides helps to balance the folding of the square rubber bellows 35 and ensure that it is folded smoothly.

[0047] Further, the mounting plate 34 is connected to a slide bar seat 37, the frame 36 is slidably sleeved on the slide bar seat 37, and a spring 38 is sleeved on the outer side of the slide bar seat 37, and the two ends of the spring 38 are respectively connected to the mounting plate 34 and the frame 36, as shown in FIG. Fig. 9As shown, the setting of spring three 38 can make the square rubber bellows 35 reset under the elastic force of spring three 38 and the guidance of slide rod seat three 37 when the conductive tube 2 is reset to the closed state. At the same time, in order to ensure the effective dustproof installation of the square rubber bellows 35 on the cleaning brush 19, an elastic cloth with an opening can be installed in the square frame 36, so that comprehensive dust prevention can be carried out when the installation is carried out, and the rotating plate 18 and the cleaning brush 19 can pass through the opening of the elastic cloth normally when the conductive tube 2 is opened.

[0048] Furthermore, the second driving assembly includes a gear ring 30, an electric motor 31, and a driving gear 32. The gear ring 30 is connected to the rotating ring 17, the electric motor 31 is installed on the sleeve 3, and the output end of the electric motor 31 is connected to the driving gear 32, and the driving gear 32 is meshed and connected with the gear ring 30. Figure 4 As shown, the electric motor 31 can drive the rotating ring 17 to rotate, and then when the cleaning brush 19 is in contact with the fuse porcelain column 1, it can drive it to rotate on the surface of the fuse porcelain column 1, so as to comprehensively clean and wipe the surface of the fuse porcelain column 1.

[0049] As for appropriately controlling the sliding frame 8 to slide so as to drive the conductive tube 2 to open and close, the existing method of adding a sensor in the circuit is adopted, and when an overload is detected, the switch is driven to open.

[0050] Working principle: first drive the slide rail 5 to drive the slider 7 to slide, drive the slide frame 8 to slide, so that the arc frame 11 drives the conductive tube 2 clamped by it to rotate, and realizes the switch from the closed state to the open state. At the same time, the sliding of the slide frame 8 will also drive the rack 42 to slide, so that the gear 41 and the rotating shaft 39 engaged therewith rotate, and then the reel 40 rotates to reel the pull rope 43, and the square rubber corrugated tube 35 is folded to a state where it is not set with the rotating plate 18 and the cleaning brush 19, and the dustproof set of the two is cancelled. At this time, the top block 29 will fit exactly with the slide plate 28, and the top rod 15 will fit exactly with the inclined block 12, completing the switch from the closed state to the open state, and realizing the automatic intelligent scoring closing;

[0051] The control slide frame 8 slides and continues to push the conductive cylinder 2 to rotate away from the fuse porcelain column 1. At this time, the top block 29 will contact the slide plate 28, and drive the upper and lower rings 22 to move away from each other and fit and contact with the rotating plate 18 and the guide block 20, so as to drive the rotating plate 18 and the cleaning brush 19 to rotate from the horizontal state to the vertical state that fits with the side of the fuse porcelain column 1. At the same time, the top rod 15 will contact the inclined block 12 and drive the arc frames 11 on both sides to move away from each other, canceling the clamping sleeve of the conductive cylinder 2, so that the conductive cylinder 2 is under gravity. Under the action, it naturally droops to facilitate disassembly, replacement, and maintenance. During the process, the square rubber bellows 35 continues to fold, and then the electric motor 31 drives the driving gear 32 to rotate, which can drive the gear ring 30 and the rotating ring 17 to rotate, and drive the cleaning brush 19 and the rotating plate 18 that are vertical and in contact with the side of the fuse porcelain column 1 to rotate with it, and the surface of the fuse porcelain column 1 is fully and automatically cleaned, which is convenient for automatic and flexible cleaning. Even in the case of no overload, it can be temporarily disconnected to achieve cleaning and maintenance;

[0052] Drive the sliding frame 8 to reset. At this time, the existing method can be adopted, that is, the lower end of the conductive cylinder 2 is first rotated and clamped on the lower side of the fuse porcelain column 1 by the insulating rod, and then the upper end of the conductive cylinder 2 is lifted, so that the arc frames 11 on both sides can be clamped again during the reset process, and the rotating plate 18 and the cleaning brush 19 are gradually rotated to the horizontal. During the process, the square rubber corrugated cylinder 35 is also gradually unfolded to be dust-proofed, so that the cleaning brush 19 can be dust-proofed, thereby improving its service life and cleaning effect.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-closing intelligent fuse, comprising a fuse porcelain column (1), a conductive cylinder (2) rotatably connected to the fuse porcelain column (1) for circuit conduction, a sleeve (3) centrally mounted on the fuse porcelain column (1), and a connecting frame (4) connected to the sleeve (3), characterized in that: A sliding frame (8) is slidably connected inside the connecting frame (4), and the sliding frame (8) is rotatably connected to arc-shaped frames (11) for clamping the conductive tube (2) on both sides of the conductive tube (2); Both axial ends of the sleeve disc (3) are rotatably connected to a rotating ring (17), and a cleaning brush (19) is rotatably connected to the rotating ring (17) via a spring hinge, and the connecting frame (4) is slidably connected to a circular ring (22) that fits and slides with the cleaning brush (19) along both axial sides of the sleeve disc (3); A driving component 1 is arranged between the two circular rings (22), and the driving component 1 is used to drive the arc frame (11) to clamp the conductive tube (2) to open and close, and when the conductive tube (2) is driven to rotate away from the fuse porcelain column (1) in the open state, the two circular rings (22) are synchronously driven to move away from each other, so as to drive the cleaning brush (19) to rotate until it is in contact with the surface of the fuse porcelain column (1), and a driving component 2 is arranged on the sleeve (3), and the driving component 2 is used to drive the circular ring (22) to rotate; The driving component 1 comprises a slide rail (5), a slider (7), a guide slide bar (21), an articulated seat (24), a slide bar seat 2 (25), a slide plate (28), and a top block (29); the slide rail (5) is connected to the connecting frame (4); the slider (7) is slidably connected in the slide rail (5); the slide frame (8) is connected to the slider (7); the guide slide bar (21) is connected to the connecting frame (4); the circular ring (22) is slidably sleeved on the outer side of the guide slide bar (21); the articulated seat (24) is connected to the circular ring (22); the slide bar seat 2 (25) is connected to the connecting frame (4); the slide plate (28) is slidably sleeved on the outer side of the slide bar seat 2 (25); a rotating rod (27) is rotatably connected between the slide plate (28) and the articulated seat (24) via a spring hinge; the top block (29) is connected to the slide frame (8) and fits and contacts the slide plate (28); The connecting frame (4) is connected to a bracket (33), the bracket (33) is connected to a mounting plate (34), the mounting plate (34) is connected to a square rubber bellows (35) sleeved on the outside of the cleaning brush (19), and the other end of the square rubber bellows (35) is connected to a square frame (36), the mounting plate (34) is rotatably connected to a rotating shaft (39), a reel (40) and a gear (41) are sleeved on the rotating shaft (39), the sliding frame (8) is connected to a rack (42), the rack (42) is meshedly connected to the gear (41), and a pull rope (43) is connected between the square frame (36) and the reel (40).

2. A self-closing intelligent fuse according to claim 1, characterized in that: The connecting frame (4) is symmetrically arranged along the radial sides of the sleeve disc (3); the rotating ring (17) is rotatably connected to a rotating plate (18) via a spring hinge; the cleaning brush (19) is bolted onto the rotating plate (18); and the rotating plate (18) is also connected to a guide block (20); the circular ring (22) slides in contact with the guide block (20); annular grooves (16) are provided on the upper and lower sides of the sleeve disc (3); the rotating rings (17) are rotatably mounted in the annular grooves (16) on each side and extend to the surface of the sleeve disc (3).

3. A self-closing intelligent fuse according to claim 1, characterized in that: The second slide bar seat (25) is sleeved with a second spring (26), and the two ends of the second spring (26) are respectively connected to the slide plate (28) and the hinge seat (24). The ring (22) is also connected to a sleeve (23) and is slidably sleeved with the guide slide bar (21) through the sleeve (23). The slide rail (5) is connected to a mounting seat (6).

4. A self-closing intelligent fuse according to claim 1, characterized in that: The slide frame (8) slides through the connecting frame (4), and the slide frame (8) is connected to a slide rod seat (9) on both sides of the conductive tube (2). A slide seat (10) is slidably sleeved on the slide rod seat (9), and an arc frame (11) for clamping the conductive tube (2) is connected to the slide seat (10) in a damping rotation manner. A spring (13) is sleeved on the slide rod seat (9), and the two ends of the spring (13) are respectively connected to the slide rod seat (9) and the arc frame (11).

5. A self-closing intelligent fuse according to claim 4, characterized in that: An inclined block (12) is connected inside the arc-shaped frame (11), an L-shaped plate (14) is connected to the slide rail (5), the L-shaped plate (14) extends to a side of the conductive cylinder (2) away from the fuse porcelain column (1), and a top rod (15) is connected at the extended end to slide against the inclined block (12).

6. A self-closing intelligent fuse according to claim 1, characterized in that: The reels (40) are symmetrically mounted on both ends of the rotating shaft (39); the gear (41) is located on the sides of the two reels (40) that are away from each other; both sides of the square frame (36) are connected with pull ropes (43); and each pull rope (43) is connected to the reel (40) on its own side.

7. A self-closing intelligent fuse according to claim 1, characterized in that: The mounting plate (34) is connected to a slide rod seat three (37), the square frame (36) is slidably sleeved on the slide rod seat three (37), the outer side of the slide rod seat three (37) is sleeved with a spring three (38), and the two ends of the spring three (38) are respectively connected to the mounting plate (34) and the square frame (36).

8. The self-closing intelligent fuse according to claim 1, characterized in that: The second driving assembly comprises a gear ring (30), an electric motor (31), and a driving gear (32); the gear ring (30) is connected to the rotating ring (17); the electric motor (31) is mounted on the sleeve (3); and the output end of the electric motor (31) is connected to the driving gear (32); the driving gear (32) is meshedly connected to the gear ring (30).

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