A kind of intelligent drop-out fuse

Abstract

The invention discloses an intelligent drop-out fuse, which relates to the technical field of fuses, and comprises a ceramic pillar, wherein an upper connecting plate is fixedly installed at the upper end of the ceramic pillar, an upper connecting shell is fixedly connected to the upper surface of the right end of the upper connecting plate, an upper connecting shell is fixedly connected to an upper wiring terminal at the left end of the upper connecting shell, a conductive contact piece is fixedly connected to the top of the right end surface of the upper connecting plate, and a V-shaped socket is fixedly connected to the bottom of the right end surface of the upper connecting plate; the invention firstly arranges an enhanced elastic auxiliary contact and an arc extinguishing cover with load cutting current and capacitive current capabilities, and then can be used to separate and close the rated load current when the conductive contact piece is connected to the upper contact, and the built-in arc extinguishing grid limits the arc and provides a deionization effect, so that the electrical equipment and the staff can be protected from the damage caused by the arc, thereby effectively improving the safety performance of the electrical equipment, and at the same time further improving the practicality of the drop-out fuse.

Description

Technical Field

[0001] The present invention relates to the technical field related to fuses, and in particular to an intelligent drop-out fuse. Background Art

[0002] High-voltage drop-out fuses are currently widely used in 10KV distribution lines. They are installed on the high-voltage side of distribution transformers or on branch lines of distribution lines for protection and equipment switching operations. Their main advantages are low cost, easy operation, and strong adaptability to outdoor environments. They are installed on 10KV distribution line branches to reduce the scope of power outages. Because they have an obvious disconnection point and have the function of an isolating switch, they create a safe working environment for maintenance lines and equipment and increase the sense of security for maintenance personnel.

[0003] At present, the electric drop-out fuse is mainly composed of a fuse tube, a porcelain bottle, a swing arm and a driving mechanism, and has the following problems: 1. The existing driving mechanism adopts a square frame ring rack, which has a complex structure, poor stability during operation, and is easy to loosen. In addition, the gears and racks on the motor are prone to rust when in contact for a long time, and there will be a problem of stalling during driving, which increases the load on the motor and further reduces the service life of the driving mechanism; 2. At the same time, it does not have an arc extinguishing function, there are safety hazards, and the user experience is greatly reduced. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides an intelligent drop-out fuse.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention discloses an intelligent drop-out fuse, comprising a ceramic pillar, wherein an upper connecting plate is fixedly installed at the upper end of the ceramic pillar, an upper connecting shell is fixedly connected to the upper surface of the right end of the upper connecting plate, an upper connecting terminal is fixedly connected to the left end of the upper connecting shell, a conductive contact piece is fixedly connected to the top of the right end surface of the upper connecting plate, a V-shaped socket is fixedly connected to the bottom of the right end surface of the upper connecting plate, and an arc extinguishing device is fixedly installed on the front of the left end of the upper connecting shell; A lower connecting plate is fixedly installed at the lower end of the ceramic pillar, a linking head hook is fixedly installed at the right end of the lower connecting plate, a lower wiring terminal is fixedly installed at the bottom of the left end of the linking head hook, a melting tube is fixedly installed at the right end of the linking head hook, an upper contact for contacting a conductive contact piece is fixedly installed at the top of the melting tube, an upper secondary ring is fixedly sleeved on the outer wall of the melting tube at its upper end, a mechanical rocker arm is hinged at the middle position of the front end and the rear end of the linking head hook, an electric push rod is fixedly installed at the right end of the mechanical rocker arm, and an electric opening hook is fixedly connected to the back of the upper end of the electric push rod; The left outer wall of the ceramic pillar and the front end of the mechanical rocker arm are both equipped with a driving mechanism for automatically cutting off the current. An oiling component is installed on the surface of the driving mechanism for automatically oiling the transmission structure.

[0006] As a preferred technical solution of the present invention, the driving mechanism includes a mechanical push-pull rod whose right end is clamped on the top of the front end of the mechanical rocker arm, a mounting base is fixedly connected to the middle position of the left outer wall of the ceramic pillar, a guide socket is fixedly connected to the front of the mounting base, a gear placement cavity is provided on the upper surface of the inner cavity of the guide socket, and an inner gear column is inserted into the inner cavity of the guide socket.

[0007] As a preferred technical solution of the present invention, a motor is fixedly installed on the back of the mounting base, a driving gear arranged in the gear placement cavity is fixedly installed on the front end of the motor, an upper joint is fixedly connected to the right end of the inner gear column, a lower joint is fixedly connected to the left end of the mechanical push-pull rod, and a fixing hole is opened on the front side near one end of the upper joint and the lower joint, and a positioning knob is threadedly connected to the inner cavity of the fixing hole.

[0008] As a preferred technical solution of the present invention, a rail groove is fixedly connected to the front of the guide holder, a slide rail is inserted into the groove of the rail groove, and a motor protection cover is fixedly connected to the front of the slide rail.

[0009] As a preferred technical solution of the present invention, the front sides of the motor protection cover and the right end of the rail groove are both provided with second fixing holes, and the inner cavities of the second fixing holes are both plugged with second positioning knobs.

[0010] As a preferred technical solution of the present invention, the oiling assembly includes two oil guide holes, and the two oil guide holes are respectively opened on the upper surface of the guide seat and the right end of the motor protection cover, and the inner cavities of the two oil guide holes are connected with oil guide tubes, and the surface of the oil guide tube at the lower end is fixedly sleeved with an inner follower ring plate, and the side of the inner follower ring plate opposite to the motor protection cover is fixedly connected with a positioning spring.

[0011] As a preferred technical solution of the present invention, a limiting hole is opened on the upper surface of the motor protection cover at its rightmost end, and the outer wall of the oil guide tube at its upper end is fixedly sleeved with an external clamping frame, and the right end of the external clamping frame is inserted into the interior of the limiting hole.

[0012] As a preferred technical solution of the present invention, the upper end of the oil guide tube is connected to an oil storage bottle, and the left end of the oil storage bottle is provided with an oil inlet.

[0013] As a preferred technical solution of the present invention, a cylinder is fixedly installed on the top of the oil storage bottle, and an inner sealing column is fixedly connected to the lower end of the cylinder.

[0014] As a preferred technical solution of the present invention, two inner support rods are fixedly connected to the middle positions of the inner walls on both sides of the oil storage bottle, and the ends of the two inner support rods close to each other are fixedly connected to positioning bearings, the inner walls of the positioning bearings are fixedly connected to an outer follower tube, and the inner wall of the outer follower tube is threadedly connected to the surface of the middle section of the inner sealing column, and the outer wall of the outer follower tube at its lower end is fixedly connected to a plurality of stirring rods.

[0015] The beneficial effects of the present invention are: 1. The intelligent drop-out fuse, through the arc extinguishing device, first sets the enhanced elastic auxiliary contact and arc extinguishing cover with the ability to cut load current and capacitive current, and then can be used to open and close the rated load current when the conductive contact piece is connected to the upper contact. The built-in arc extinguishing grid limits the arc and provides a deionization effect, so that the electrical equipment and personnel can be protected from damage caused by the arc, thereby effectively improving the safety performance of the electrical equipment, and at the same time further improving the practicality of the drop-out fuse.

[0016] 2. The intelligent drop-out fuse, through the set driving mechanism, first controls the motor to rotate forward, and the motor forward rotation can drive the driving gear forward rotation, and the driving gear forward rotation can drive the inner slave gear column to move to the right, and the inner slave gear moving to the right can drive the mechanical push-pull rod to move to the right, and the mechanical push-pull rod moving to the right can push the mechanical rocker arm and the electric push rod to flip to the right at the same time, and the electric push rod flipping to the right can drive the electric opening hook to move to the right, and the electric opening hook moving to the right can drive the upper slave ring to flip to the right, and the upper slave ring flipping to the right can drive the fuse tube and the upper contact to flip to the right at the same time. When the upper contact is fully separated from the surface of the conductive contact piece, the automatic power-off of the fuse is completed, which effectively improves the safety of electrical equipment and lines. At the same time, this operation method saves time and effort, and further improves the safety of staff.

[0017] 3. The intelligent drop-out fuse, through the positioning knob 1 and the positioning knob 2, first controls the positioning knob 1 to reverse, when the positioning knob 1 is fully separated from the inner cavity of the fixed hole 1, the mechanical push-pull rod can be quickly disassembled, so that it is convenient for maintenance personnel to quickly replace the new mechanical push-pull rod, thereby enabling the drive mechanism to have the function of continuous use, and then controls the positioning knob 2 to reverse, when the positioning knob 2 is fully separated from the inner cavity of the fixed hole 2, the motor protection cover and the oiling component can be quickly disassembled at the same time, so that it is convenient for the staff to repair the motor and replace the new motor protection cover, thereby further improving the service life of the drop-out fuse.

[0018] 4. The intelligent drop-type fuse, through the oiling component set up, first controls the cylinder to start, which can drive the inner sealing column to move upward. The upward movement of the inner sealing column can prompt the outer follower tube and the stirring rod to rotate at the same time. The rotation of the stirring rod can automatically stir the lubricating oil in the oil storage bottle, which effectively avoids the precipitation of the lubricating oil and improves the quality of the lubricating oil. Then, when the lower end of the inner sealing column is fully separated from the inner cavity of the oil guide tube, the inner cavity of the oil guide tube is automatically opened. At this time, the oil storage bottle can transport the uniform lubricating oil to the inside of the gear placement cavity through the oil guide tube. The lubricating oil entering the gear placement cavity can automatically oil the connection between the driving gear and the inner follower gear column. Finally, accompanied by the drive of the motor, the lubricating oil can spread all over the rack surface of the inner follower gear column, which effectively improves the service life of the drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of an intelligent drop-out fuse of the present invention; Figure 2 It is a front view of an intelligent drop-out fuse of the present invention; Figure 3 It is a structural schematic diagram of an intelligent drop-out fuse according to the present invention from a left side perspective; Figure 4 It is a structural schematic diagram of an intelligent drop-out fuse according to the present invention from a bottom perspective; Figure 5 It is a structural schematic diagram of an intelligent drop-out fuse according to the present invention from a rear side perspective; Figure 6 The invention is an intelligent drop-out fuse Figure 5 A schematic diagram of the structure from the bottom perspective; Figure 7 It is a front cross-sectional view of a motor protection cover and an oiling assembly of an intelligent drop-out type fuse of the present invention; Figure 8 The invention is an intelligent drop-out fuse Figure 7 Stereoscopic image of Fig. 9 It is a longitudinal cross-sectional view of an upper joint and a lower joint of an intelligent drop-out type fuse of the present invention; Fig.10 It is an exploded view of a part of the structure of an intelligent drop-out fuse of the present invention; Fig.11 The invention is an intelligent drop-out fuse Fig.10 Structural diagram from the right perspective; Fig.12 The invention is an intelligent drop-out fuse Figure 4 The enlarged view of point A in the middle; Fig.13 The invention is an intelligent drop-out fuse Figure 6 The enlarged view of point B in the middle; Fig.14 The invention is an intelligent drop-out fuse Figure 7 Enlarged view of point C in the middle; Fig.15 The invention is an intelligent drop-out fuse Figure 8 The enlarged view of point D in the middle; Fig.16 The invention is an intelligent drop-out fuse Figure 8 Enlarged view of point E in the middle; Fig.17 The invention is an intelligent drop-out fuse Fig. 9 The enlarged view of F in the middle; Fig.18 The invention is an intelligent drop-out fuse Fig.10 Enlarged view of G in the middle; Fig.19 The invention is an intelligent drop-out fuse Fig.11 Enlarged view of point H in the middle.

[0020] In the figure: 1, ceramic pillar; 2, upper connecting plate; 3, upper connecting shell; 4, upper wiring terminal; 5, conductive contact piece; 6, V-shaped card seat; 7, arc extinguishing device; 8, lower connecting plate; 9, link joint hook; 10, lower wiring terminal; 11, melting tube; 12, upper contact; 13, upper slave ring; 14, mechanical rocker arm; 15, electric push rod; 16, electric opening hook; 17, driving mechanism; 1701, mechanical push-pull rod; 1702, mounting base; 1703, guide card seat; 1704, gear placement cavity; 1705, inner slave gear column; 1706, motor; 1707, driving gear; 1708, upper joint; 170 9. Lower joint; 1710. Fixing hole one; 1711. Positioning knob one; 1712. Rail groove; 1713. Slide rail; 1714. Motor protection cover; 1715. Fixing hole two; 1716. Positioning knob two; 18. Oiling assembly; 1801. Oil guide hole; 1802. Oil guide plug; 1803. Inner follower ring plate; 1804. Positioning spring; 1805. Limiting hole; 1806. External clamping frame; 1807. Oil storage bottle; 1808. Oil inlet; 1809. Cylinder; 1810. Inner sealing column; 1811. Inner support rod; 1812. Positioning bearing; 1813. External follower tube; 1814. Stirring rod. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-Figure 19 As shown, an intelligent drop-out fuse of the present invention comprises a ceramic pillar 1, an upper connecting plate 2 is fixedly installed at the upper end of the ceramic pillar 1, an upper connecting shell 3 is fixedly connected to the upper surface of the right end of the upper connecting plate 2, an upper connecting shell 3 is fixedly connected to the upper wiring terminal 4 at the left end of the upper connecting shell 3, a conductive contact piece 5 is fixedly connected to the top of the right end surface of the upper connecting plate 2, a V-shaped holder 6 is fixedly connected to the bottom of the right end surface of the upper connecting plate 2, and an arc extinguishing device 7 is fixedly installed on the front of the left end of the upper connecting shell 3; a lower connecting plate 8 is fixedly installed at the lower end of the ceramic pillar 1, a linking connector hook 9 is fixedly installed at the right end of the lower connecting plate 8, a lower wiring terminal 10 is fixedly installed at the bottom of the left end of the linking connector hook 9, and a linking connector hook 9 is fixedly installed at the bottom of the left end of the linking connector hook 9. A melting tube 11 is fixedly installed on the right end of the head hook 9, and an upper contact 12 for contacting the conductive contact piece 5 is fixedly installed on the top of the melting tube 11. An upper slave ring 13 is fixedly sleeved on the outer wall of the melting tube 11 at its upper end, and a mechanical rocker arm 14 is hinged at the middle position connecting the front and rear ends of the head hook 9. An electric push rod 15 is fixedly installed on the right end of the mechanical rocker arm 14, and an electric disconnecting hook 16 is fixedly connected to the back of the upper end of the electric push rod 15; a driving mechanism 17 is installed on the left outer wall of the ceramic pillar 1 and the front end of the mechanical rocker arm 14 for automatically cutting off the current, and an oiling component 18 is installed on the surface of the driving mechanism 17 for automatically oiling the transmission structure.

[0023] The driving mechanism 17 includes a mechanical push-pull rod 1701, the right end of which is clamped on the top of the front end of the mechanical rocker arm 14; a mounting base 1702 is fixedly connected to the middle position of the left outer wall of the ceramic pillar 1; a guide card seat 1703 is fixedly connected to the front of the mounting base 1702; a gear placement cavity 1704 is provided on the upper surface of the inner cavity of the guide card seat 1703; an inner slave gear column 1705 is inserted into the inner cavity of the guide card seat 1703; a motor 1706 is fixedly installed on the back of the mounting base 1702; a driving gear 1707 arranged in the gear placement cavity 1704 is fixedly installed at the front end of the motor 1706; the right end of the inner slave gear column 1705 is fixedly connected to The upper joint 1708 and the left end of the mechanical push-pull rod 1701 are fixedly connected with the lower joint 1709, and the front sides of the upper joint 1708 and the lower joint 1709 near one end are provided with a fixing hole 1710, and the inner cavity of the fixing hole 1710 is threadedly connected with a positioning knob 1711; the front side of the guide holder 1703 is fixedly connected with a rail groove 1712, and the groove of the rail groove 1712 is inserted with a slide rail 1713, and the front side of the slide rail 1713 is fixedly connected with a motor protection cover 1714; the front sides of the motor protection cover 1714 and the right end of the rail groove 1712 are provided with a fixing hole 1715, and the inner cavity of the fixing hole 1715 is inserted with a positioning knob 1716.

[0024] Among them, through the set driving mechanism 17, first control the motor 1706 to rotate forward, the motor 1706 can drive the driving gear 1707 to rotate forward, the driving gear 1707 can drive the inner slave gear column 1705 to move rightward, the inner slave gear column 1705 moving rightward can drive the mechanical push-pull rod 1701 to move rightward, the mechanical push-pull rod 1701 moving rightward can push the mechanical rocker arm 14 and the electric push rod 15 to flip rightward at the same time, the electric push rod 15 flipping rightward can drive the electric opening hook 16 to move rightward, and the electric opening hook 16 moving rightward can drive the upper slave ring 13 flips to the right, and the upper slave ring 13 flips to the right, which can drive the fuse tube 11 and the upper contact 12 to flip to the right at the same time. When the upper contact 12 is fully separated from the surface of the conductive contact piece 5, the automatic power-off of the fuse is completed. Then, the control motor 1706 is reversed to drive the fuse tube 11 and the upper contact 12 to flip to the left at the same time. When the upper contact 12 moves into the groove of the conductive contact piece 5 again, the automatic power-on of the fuse is quickly completed. This effectively improves the safety of electrical equipment and lines. At the same time, this operation method saves time and effort, and further improves the safety of staff.

[0025] The oiling assembly 18 includes two oil guide holes 1801, which are respectively provided on the upper surface of the guide base 1703 and the right end of the motor protection cover 1714. The inner cavities of the two oil guide holes 1801 are both plugged with oil guide tubes 1802. The surface of the oil guide tube 1802 at the lower end thereof is fixedly sleeved with an inner follower ring plate 1803, and the inner follower ring plate 1803 is fixedly connected to the side opposite to the motor protection cover 1714 with a positioning spring 1804; the upper surface of the motor protection cover 1714 at its rightmost end is provided with a limiting hole 1805, and the outer wall of the oil guide tube 1802 at its upper end is fixedly sleeved with an outer bracket 1806, and the right end of the outer bracket 1806 is inserted into the inner limit hole 1805. The upper end of the oil guide tube 1802 is connected to the oil storage bottle 1807, and the left end of the oil storage bottle 1807 is provided with an oil inlet 1808; the top of the oil storage bottle 1807 is fixedly installed with a cylinder 1809, and the lower end of the cylinder 1809 is fixedly connected with an inner sealing column 1810; two inner support rods 1811 are fixedly connected to the middle position of the inner walls on both sides of the oil storage bottle 1807, and the ends of the two inner support rods 1811 close to each other are fixedly connected with a positioning bearing 1812, and the inner wall of the positioning bearing 1812 is fixedly connected with an outer slave tube 1813, and the inner wall of the outer slave tube 1813 is threadedly connected to the surface of the middle section of the inner sealing column 1810, and the outer wall of the outer slave tube 1813 at its lower end is fixedly connected with a plurality of stirring rods 1814.

[0026] Among them, through the oiling component 18, first, the cylinder 1809 is controlled to start, which can drive the inner sealing column 1810 to move upward. The upward movement of the inner sealing column 1810 can prompt the outer slave tube 1813 and the stirring rod 1814 to rotate at the same time. The rotation of the stirring rod 1814 can automatically stir the lubricating oil in the oil storage bottle 1807, which effectively avoids the precipitation of the lubricating oil and improves the use quality of the lubricating oil. Then, when the lower end of the inner sealing column 1810 is fully separated from the inner cavity of the oil guide tube 1802, the inner cavity of the oil guide tube 1802 is automatically opened. At this time, the oil storage bottle 1807 can evenly distribute the lubricating oil through the oil guide tube 180 2 is delivered to the interior of the gear placement chamber 1704, so that the lubricating oil entering the gear placement chamber 1704 can automatically oil the connection between the driving gear 1707 and the inner slave gear column 1705, and then accompanied by the drive of the motor 1706, the lubricating oil can spread all over the rack surface of the inner slave gear column 1705, and finally the cylinder 1809 is controlled to start again. The start of the cylinder 1809 can drive the inner sealing column 1810 to move downward. When the inner sealing column 1810 is fully moved to the interior of the oil guide tube 1802, the automatic closure of the oil guide tube 1802 is completed, thereby effectively avoiding the waste of lubricating oil. At the same time, it also effectively increases the number of times the oiling component 18 is used.

[0027] When working, first control the motor 1706 to rotate forward, the motor 1706 can drive the driving gear 1707 to rotate forward, the driving gear 1707 can drive the inner gear column 1705 to move rightward, the inner gear column 1705 moving rightward can drive the mechanical push-pull rod 1701 to move rightward, the mechanical push-pull rod 1701 moving rightward can push the mechanical rocker arm 14 and the electric push rod 15 to flip rightward at the same time, the electric push rod 15 flipping rightward can drive the electric opening hook 16 to move rightward, The electric opening hook 16 moves to the right to drive the upper slave ring 13 to flip to the right, and the upper slave ring 13 flips to the right to drive the fuse tube 11 and the upper contact 12 to flip to the right at the same time. When the upper contact 12 is fully separated from the surface of the conductive contact piece 5, the automatic power-off of the fuse is completed. Then, the control motor 1706 is reversed to drive the fuse tube 11 and the upper contact 12 to flip to the left at the same time. When the upper contact 12 moves into the groove of the conductive contact piece 5 again, the automatic power-on of the fuse is quickly completed. Protection of the fuse: First, the control cylinder 1809 is started to drive the inner sealing column 1810 to move upward. The upward movement of the inner sealing column 1810 can prompt the outer slave tube 1813 and the stirring rod 1814 to rotate at the same time. The rotation of the stirring rod 1814 can automatically stir the lubricating oil in the oil storage bottle 1807, which effectively avoids the precipitation of the lubricating oil and improves the quality of the lubricating oil. Then, when the lower end of the inner sealing column 1810 is fully separated from the inner cavity of the oil guide tube 1802, the inner cavity of the oil guide tube 1802 is automatically opened. At this time, the oil storage bottle 1807 can deliver uniform lubricating oil to the oil storage bottle 1807 through the oil guide tube 1802. To the inside of the gear placement chamber 1704, the lubricating oil entering the gear placement chamber 1704 can automatically oil the connection between the driving gear 1707 and the inner slave gear column 1705, and then with the drive of the motor 1706, the lubricating oil can spread all over the rack surface of the inner slave gear column 1705, and finally the cylinder 1809 is controlled to start again, and the cylinder 1809 can drive the inner sealing column 1810 to move downward, and when the inner sealing column 1810 is fully moved to the inside of the oil guide plug 1802, the automatic sealing of the oil guide plug 1802 is completed, thereby effectively avoiding the waste of lubricating oil, and at the same time, effectively increasing the number of times the oiling component 18 is used; Replacement of fuse parts: first control the positioning knob 1711 to reverse. When the positioning knob 1711 is fully separated from the inner cavity of the fixing hole 1710, the mechanical push-pull rod 1701 can be quickly disassembled, so that it is convenient for maintenance personnel to quickly replace the new mechanical push-pull rod 1701, thereby enabling the drive mechanism 17 to have the function of continuous use. Then control the positioning knob 1716 to reverse. When the positioning knob 1716 is fully separated from the inner cavity of the fixing hole 1715, the motor protection cover 1714 and the oiling assembly 18 can be quickly disassembled at the same time, so that it is convenient for the staff to repair the motor 1706 and replace the new motor protection cover 1714.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent drop-out fuse, comprising a ceramic support (1), characterized in that: The ceramic pillar (1) is fixedly mounted with an upper connecting plate (2) at its upper end, the upper surface of the right end of the upper connecting plate (2) is fixedly connected with an upper connecting shell (3), the upper connecting shell (3) is fixedly connected with an upper wiring terminal (4) at its left end, the top of the right end surface of the upper connecting plate (2) is fixedly connected with a conductive contact piece (5), the bottom of the right end surface of the upper connecting plate (2) is fixedly connected with a V-shaped holder (6), and the front of the left end of the upper connecting shell (3) is fixedly mounted with an arc extinguishing device (7); A lower connecting plate (8) is fixedly mounted on the lower end of the ceramic pillar (1), a linking hook (9) is fixedly mounted on the right end of the lower connecting plate (8), a lower wiring terminal (10) is fixedly mounted on the bottom of the left end of the linking hook (9), a melting tube (11) is fixedly mounted on the right end of the linking hook (9), an upper contact (12) for contacting a conductive contact sheet (5) is fixedly mounted on the top of the melting tube (11), an upper secondary ring (13) is fixedly sleeved on the outer wall of the melting tube (11) at the upper end thereof, a mechanical rocker arm (14) is hingedly mounted at the middle position of the front end and the rear end of the linking hook (9), an electric push rod (15) is fixedly mounted on the right end of the mechanical rocker arm (14), and an electric disconnecting hook (16) is fixedly connected to the back of the upper end of the electric push rod (15); The left outer wall of the ceramic pillar (1) and the front end of the mechanical rocker arm (14) are both equipped with a driving mechanism (17) for automatically cutting off the current, and the surface of the driving mechanism (17) is equipped with an oiling component (18) for automatically oiling the transmission structure.

2. The intelligent drop-out fuse according to claim 1, characterized in that: The driving mechanism (17) includes a mechanical push-pull rod (1701) whose right end is clamped on the top of the front end of the mechanical rocker arm (14); a mounting base (1702) is fixedly connected to the middle position of the left outer wall of the ceramic pillar (1); a guide holder (1703) is fixedly connected to the front of the mounting base (1702); a gear placement cavity (1704) is provided on the upper surface of the inner cavity of the guide holder (1703); and an inner gear column (1705) is inserted into the inner cavity of the guide holder (1703).

3. The intelligent drop-out fuse according to claim 2, characterized in that: A motor (1706) is fixedly mounted on the back of the mounting base (1702), a driving gear (1707) disposed in the gear placement cavity (1704) is fixedly mounted on the front end of the motor (1706), an upper joint (1708) is fixedly connected to the right end of the inner gear column (1705), a lower joint (1709) is fixedly connected to the left end of the mechanical push-pull rod (1701), a fixing hole (1710) is provided on the front side near one end of each of the upper joint (1708) and the lower joint (1709), and a positioning knob (1711) is threadedly connected to the inner cavity of the fixing hole (1710).

4. The intelligent drop-out fuse according to claim 3, characterized in that: The front side of the guide card seat (1703) is fixedly connected to a rail groove (1712), a slide rail (1713) is inserted into the groove of the rail groove (1712), and the front side of the slide rail (1713) is fixedly connected to a motor protection cover (1714).

5. The intelligent drop-out fuse according to claim 4, characterized in that: The front sides of the motor protection cover (1714) and the right end of the track groove (1712) are both provided with a second fixing hole (1715), and the inner cavity of the second fixing hole (1715) is plugged with a second positioning knob (1716).

6. The intelligent drop-out fuse according to claim 5, characterized in that: The oiling assembly (18) comprises two oil guide holes (1801), the two oil guide holes (1801) are respectively opened on the upper surface of the guide seat (1703) and the right end of the motor protection cover (1714), the inner cavities of the two oil guide holes (1801) are both plugged with oil guide tubes (1802), the surface of the oil guide tube (1802) at the lower end thereof is fixedly sleeved with an inner follower ring plate (1803), and the side of the inner follower ring plate (1803) opposite to the motor protection cover (1714) is fixedly connected with a positioning spring (1804).

7. The intelligent drop-out fuse according to claim 6, characterized in that: The upper surface of the motor protection cover (1714) at the rightmost end is provided with a limiting hole (1805), the outer wall of the oil guide tube (1802) at the upper end is fixedly sleeved with an external clamping frame (1806), and the right end of the external clamping frame (1806) is inserted into the interior of the limiting hole (1805).

8. The intelligent drop-out fuse according to claim 7, characterized in that: The upper end of the oil guide tube (1802) is connected to an oil storage bottle (1807), and the left end of the oil storage bottle (1807) is provided with an oil inlet (1808).

9. The intelligent drop-out fuse according to claim 8, characterized in that: A cylinder (1809) is fixedly mounted on the top of the oil storage bottle (1807), and an inner sealing column (1810) is fixedly connected to the lower end of the cylinder (1809).

10. The intelligent drop-out fuse according to claim 9, characterized in that: Two inner support rods (1811) are fixedly connected to the middle positions of the inner walls on both sides of the oil storage bottle (1807); the ends of the two inner support rods (1811) close to each other are fixedly connected to positioning bearings (1812); the inner walls of the positioning bearings (1812) are fixedly connected to an outer follower tube (1813); the inner wall of the outer follower tube (1813) is threadedly connected to the surface of the middle section of the inner sealing column (1810); and the outer wall of the outer follower tube (1813) at its lower end is fixedly connected to a plurality of stirring rods (1814).

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