An intelligent fuse with fault distance measurement function

Abstract

The present invention discloses an intelligent fuse with a fault distance measurement function, and relates to the technical field of fuses. The present invention includes an insulating component, including an insulating column, two rain covers 1 arranged at right angles on the upper part of the insulating column, and two rain covers 2 arranged at right angles on the lower part of the insulating column, a linkage switching component, including a linkage cylinder arranged in parallel with the insulating column, an electromagnet fixed at the bottom position in the linkage cylinder, and a metal column located directly above the electromagnet, a fuse component, including two fuse tubes symmetrically located at the left and right sides of the linkage cylinder, and a gas pushing component, including a pushing cylinder located at one side of the linkage cylinder and a pushing rod located inside the pushing cylinder. The present invention controls the movement of the metal rod through an electromagnet, so that when the fuse tube is naturally damaged, another fuse tube can be switched to ensure normal operation of the fuse, and at the same time, through the use of the pushing rod, the cause of the fuse circuit breaker can be quickly determined.

Description

Technical Field

[0001] The invention belongs to the technical field of fuses, and in particular relates to an intelligent fuse with a fault distance measurement function. Background Art

[0002] The use of fuses is to achieve efficient and reliable protection of power lines and reduce operation and maintenance costs. A fuse is an electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the fuse will melt the fuse with the heat generated by itself, thereby disconnecting the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, it is one of the most commonly used protection devices. At the same time, fuses Used in conjunction with the traveling wave positioning switch, the function of fault ranging is realized. According to the existing public document CN109449066B, most of the fuses currently used adopt intelligent control, so the intelligent fuses mainly include a primary transformer, a drop-out fuse core, and a control unit; the primary transformer includes a high-frequency current transformer, a voltage sensor, and a power supply module. The controller has a high-frequency 2M sampling and GPS timing with a timing accuracy of 200ns; 433M radio frequency communication and 4G communication functions are used to ensure the intelligent use of the fuse.

[0003] However, when using existing drop-out fuses, most of them are connected by fuse tubes, and the fuse inside the fuse tube is burned and disconnected to achieve power outage. However, since the fuse does not have the function of automatic switching, the fuse cannot be restarted. At the same time, when the existing fuse is damaged, it is impossible to accurately judge whether the fuse itself is damaged due to the expiration of its life or due to an external short circuit. Therefore, after the fuse is disconnected, the switched fuse tube will be damaged. To this end, we provide an intelligent fuse with a fault ranging function to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent fuse with a fault distance measurement function. The movement of a metal rod is controlled by an electromagnet, so that when a fuse tube is naturally damaged, another fuse tube can be switched to ensure the normal operation of the fuse. At the same time, the cause of the fuse circuit breaker can be quickly determined by using a push rod.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides an intelligent fuse with a fault distance measurement function, comprising an insulating component, including an insulating column, two rainproof covers 1 arranged at right angles on the upper part of the insulating column, and two rainproof covers 2 arranged at right angles on the lower part of the insulating column, a diagonal electric block is fixed at the position between the two rainproof covers 2, a linkage switching component, including a linkage cylinder arranged parallel to the insulating column, an electromagnet fixed at the bottom position in the linkage cylinder, and a metal column located directly above the electromagnet, and a fuse component, including two fuse tubes symmetrically located at the left and right positions of the linkage cylinder, and the fuse tubes are respectively located between the rainproof cover 1 and the rainproof cover 2 which are in the same upper and lower positions. Position, a fuse is fixed between the upper and lower surfaces inside the fuse tube, the linkage cylinder is located between the two fuse tubes, the gas pushing assembly includes a pushing cylinder located on one side of the linkage cylinder and a pushing rod located inside the pushing cylinder, the surface side of the fuse tube close to the pushing cylinder is fixedly connected with a connecting tube that is sealed and connected to the pushing cylinder, a ring that is sleeved on the fuse tube is provided at the other side of the linkage cylinder, a pull rope fixed on the surface side of the ring is fixedly connected to the upper surface of the metal column, an open ring is sleeved on the surface side of the linkage cylinder located below the pushing cylinder, an abutment ring is fixed on the surface side of the linkage cylinder located below the open ring, and a positioning spring is fixed between the open ring and the abutment ring.

[0007] The present invention is further configured such that a connection plate is fixed to the upper end surface of the rain cover 1, and a duckbill electric clamp electrically connected to the connection plate is fixed to the inner side of the end of the rain cover 1 away from the insulating column.

[0008] The present invention is further configured such that a rotating electrical sleeve electrically connected to the diagonal electrical block is fixed to the inner side of the ends of the two rainproof covers away from the insulating column, a mounting frame is fixed to the middle position of the insulating column, and the mounting frame is connected to the surface side of the linkage cylinder by bolts.

[0009] The present invention is further configured such that two connecting wires arranged vertically are fixed to the surface side wall of the linkage cylinder, the upper connecting wire is electrically connected to the diagonal electric block, and the two ends of the coil of the electromagnet are respectively electrically connected to the adjacent connecting wires.

[0010] The present invention is further configured such that a mounting ring for fixing the electromagnet is fixed inside the linkage cylinder, a positioning ring sleeved on a metal column is fixed to the inner side wall of the linkage cylinder above the mounting ring, a through hole is penetrated through the outer side wall of the linkage cylinder between the mounting ring and the positioning ring, and the pull rope passes through the inner position of the through hole.

[0011] The present invention is further configured such that two sliding openings which are symmetrically arranged along the circumferential direction are provided on the surface side of the metal column, and a sliding block which slides in the inner position of the sliding opening is fixed to the inner side wall of the positioning ring.

[0012] The present invention is further configured such that a shielding frame is fixed to the side wall of the linkage cylinder located above the electromagnet, a strip opening is penetrated through the side wall of the linkage cylinder located inside the shielding frame, a connecting plate that slides through the internal position of the strip opening is fixed to the upper end surface of the metal column, and a vertical plate that is fixedly connected to the upper end surface of the open ring is fixed to the lower end surface of the connecting plate.

[0013] The present invention is further configured such that a notch is provided on the inner side wall of the open ring, a pulley is rotatably arranged inside the notch, three locating holes equidistantly arranged in a ring shape are provided on the upper end face of the abutment ring, and three locating rods are fixed on the lower end face of the open ring which respectively pass through the internal positions of the locating holes.

[0014] The present invention is further configured such that an electric pole connected to the fuse is fixed to the upper end surface of the fuse tube, and a rotating ring rotatably connected to the rotating electric sleeve is fixed to the lower end of the fuse tube.

[0015] The present invention is further configured such that a movable hole connected to the interior of the pushing cylinder is opened on the end face of the pushing cylinder close to the linkage cylinder, a ring plate is fixed to the interior of the pushing cylinder, a cross plate is fixed to one end of the pushing cylinder connected to the connecting pipe, a piston block located inside the pushing cylinder is fixed to one end of the pushing rod, an elastic rope is fixed to the end face of the piston block, and a locking plate bolted to the cross plate is fixed to the other end of the elastic rope.

[0016] The present invention has the following beneficial effects:

[0017] When the fuse inside the fuse tube breaks due to the end of its life, the air pressure inside the fuse tube is normal at this time, so the push rod will not work, and the power failure of the line caused by the broken fuse will cause the electromagnet to lose power, so that the electromagnet will not adsorb the metal column. At this time, the metal column will move upward inside the linkage cylinder and drive the other fuse tube to connect with the line, ensuring the stable use of the line and realizing the switching use of the two fuses.

[0018] When the fuse tube is damaged naturally, the push tube will not work, so that the other fuse tube can be engaged with the duckbill electric clamp at the first time. When the fuse tube is damaged due to a short circuit, the push rod needs to be pushed out after the high-temperature gas is reduced, so that the other fuse tube cannot be used at the first time. In this way, it is possible to quickly determine whether the circuit break is caused by a short circuit or damage to the fuse itself.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural combination diagram of the insulating column, linkage cylinder and sleeve ring in the present invention.

[0023] Figure 3 It is a structural diagram of the insulating column, rain cover 1, rain cover 2 and diagonal electric block in the present invention.

[0024] Figure 4 It is a structural combination diagram of the linkage cylinder, the sleeve ring, the electromagnet and the metal column in the present invention.

[0025] Figure 5 It is a structural combination diagram of the pushing cylinder and the pushing rod in the present invention.

[0026] Figure 6 It is the internal structure diagram of the linkage cylinder in the present invention.

[0027] Figure 7 It is a structural combination diagram of the metal pillars in the present invention.

[0028] Figure 8 This is a structural combination diagram of the fuse tube, rotating ring and pole in the present invention.

[0029] Fig. 9 It is a combined diagram of the external structure of the linkage cylinder in the present invention.

[0030] Fig.10 It is the internal structure diagram of the push tube in the present invention.

[0031] Fig.11 It is a structural diagram of the push rod in the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 100-insulating assembly, 101-insulating column, 101a-mounting frame, 102-rain cover 1, 102a-electrical connection plate, 102b-duckbill electric clamp, 103-rain cover 2, 103a-rotating electric sleeve, 104-diagonal electric block, 200-linkage switching assembly, 201-linkage cylinder, 201a-butt ring, 201a-1-positioning hole, 201b-connecting wire, 201c-positioning ring, 201c-1-slider, 201c-2-shielding frame, 201d-mounting ring, 201e-through hole, 201f-strip mouth, 202-ring, 202a-pull rope, 203-electromagnet, 2 04-metal column, 204a-vertical plate, 204b-connecting plate, 204c-opening ring, 204c-1-positioning rod, 204c-2-positioning spring, 204c-3-notch, 204d-slide, 204e-pulley, 300-fuse assembly, 301-fuse tube, 301a-fuse wire, 301b-connecting tube, 302-rotating ring, 303-electric pole, 400-gas pushing assembly, 401-pushing cylinder, 401a-ring plate, 401b-cross plate, 401c-moving hole, 402-pushing rod, 402a-piston block, 402b-elastic rope, 402c-locking plate. 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. Example 1

[0035] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 , which is the first embodiment of the present invention, provides an intelligent fuse with a fault distance measurement function. The electromagnet 203 controls the movement of the metal rod, so that when the fuse tube 301 is naturally damaged, another fuse tube 301 can be switched to work, thereby ensuring the normal operation of the fuse. At the same time, through the use of the push rod 402, the cause of the fuse circuit breaker can be quickly determined.

[0036] Specifically, the insulating assembly 100 includes an insulating column 101, two rainproof covers 102 disposed at right angles on the upper part of the insulating column 101, and two rainproof covers 103 disposed at right angles on the lower part of the insulating column 101; the linkage switching assembly 200 includes a linkage cylinder 201 disposed in parallel with the insulating column 101, an electromagnet 203 fixed at the bottom position of the linkage cylinder 201, and a metal column 204 located directly above the electromagnet 203; the fuse assembly 300 includes two fuse tubes 301 symmetrically located at the left and right sides of the linkage cylinder 201; the gas pushing assembly 400 includes a pushing cylinder 401 located at one side of the linkage cylinder 201 and a pushing rod 402 located inside the pushing cylinder 401;

[0037] By setting and using the above structure, the fuse is installed on the line. When a short circuit occurs in the external line, causing the fuse 301a inside the fuse tube 301 to be disconnected, the high temperature generated at this time will increase the air pressure inside the fuse tube 301, thereby pushing the push rod 402, causing the push rod 402 to move and connect with the surface wall of the linkage cylinder 201, thereby controlling the metal column 204 to be unable to continue to move upward. At the same time, when the fuse 301a inside the fuse tube 301 is broken due to the end of its life, the air pressure inside the fuse tube 301 is normal at this time, so the push rod 402 will not work, and then the line power failure caused by the breakage of the fuse 301a will cause the electromagnet 203 to be powered off, so that the electromagnet 203 will not adsorb the metal column 204. At this time, the metal column 204 will move upward inside the linkage cylinder 201 and drive another fuse tube 301 to be connected with the line, thereby ensuring the stable use of the line.

[0038] according to Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 A diagonal electric block 104 is fixed between the two rainproof covers 103, the fuse tube 301 is respectively located between the rainproof cover 102 and the rainproof cover 103 which are in the same upper and lower positions, a fuse wire 301a is fixed between the upper and lower surfaces inside the fuse tube 301, the linkage cylinder 201 is located between the two fuse tubes 301, and a connecting tube 301b which is sealed and connected to the push cylinder 401 is fixed on the surface of the fuse tube 301 close to the push cylinder 401, and is located The other side of the linkage cylinder 201 is provided with a collar 202 sleeved on the fuse tube 301, a pull rope 202a fixed on the surface side of the collar 202 is fixedly connected to the upper surface of the metal column 204, an open ring 204c is sleeved on the surface side of the linkage cylinder 201 located below the push cylinder 401, an abutment ring 201a is fixed on the surface side of the linkage cylinder 201 located below the open ring 204c, and a positioning spring 204c-2 is fixed between the open ring 204c and the abutment ring 201a;

[0039] When using the above-mentioned structure, after the electromagnet 203 is powered off, the positioning spring 204c-2 will push the open ring 204c to move upward on the surface side of the linkage cylinder 201, thereby driving the metal column 204 to move upward inside the linkage cylinder 201, so that the metal column 204 will drive the ring 202 to move toward the direction of the linkage cylinder 201 through the pull rope 202a, so that the ring 202 will drive the connected fuse tube 301 to rotate, and make this fuse tube 301 drive the pole 303 to engage with the duckbill electric clamp 102b, so that the fuse tube 301 is in a working state. Conversely, when the electromagnet 203 is powered on, the electromagnet 203 at this time will absorb the metal column 204, causing the metal column 204 to move downward, so that the metal column 204 will drive the open ring 204c to compress the positioning spring 204c-2 above the abutment ring 201a.

[0040] Further, according to Figure 3 and Figure 8 The upper end surface of the fuse tube 301 is fixed with an electric pole 303 connected to the fuse wire 301a, and the lower end of the fuse tube 301 is fixed with a rotating ring 302 rotatably connected to the rotating electric sleeve 103a. When the fuse tube 301 is driven to rotate by the sleeve ring 202, the rotating ring 302 fixed at the lower end of the fuse tube 301 will rotate inside the rotating electric sleeve 103a.

[0041] It should be noted that the diagonal electric block 104 is connected to the connecting wire 201b on the side wall of the linkage tube 201. Therefore, after the electromagnet 203 is energized, its current will flow through the diagonal electric block 104 from the position of the fuse tube. At the same time, the fuses used are used in conjunction with the traveling wave positioning switches on the external cables to achieve the function of fault ranging. One of the two connecting wires 201b used is connected to the diagonal electric block 104, and the other is connected to the external line. Example 2

[0042] See also Figure 2 and Figure 3 On the basis of the first embodiment, the present embodiment uses the diagonal electric block 104 so that the connecting wire 201b can be electrically connected to the two fuse tubes.

[0043] Specifically, the upper end surface of the rain cover 102 is fixed with a connection plate 102a, the inner side of the end of the rain cover 102 away from the insulating column 101 is fixed with a duckbill electric clamp 102b electrically connected to the connection plate 102a, the inner side of the end of the rain cover 2 103 away from the insulating column 101 is fixed with a rotating electric sleeve 103a electrically connected to the diagonal electric block 104, the middle position of the insulating column 101 is fixed with a mounting frame 101a, and the mounting frame 101a is connected to the surface side of the linkage cylinder 201 by bolts, and two connecting wires 201b arranged up and down are fixed to the surface side wall of the linkage cylinder 201, the upper connecting wire 201b is electrically connected to the diagonal electric block 104, and the two ends of the coil of the electromagnet 203 are respectively electrically connected to the adjacent connecting wires 201b;

[0044] By setting up and using the above-mentioned structure, the connection between the power strip 102a and the duckbill power connector is achieved, so that the pole 303 will rotate and engage in the duckbill power clamp 102b. At this time, the pole 303, the power strip 102a and the duckbill power clamp 102b are energized, and the connection between the diagonal power block 104 and the rotating power sleeve 103a is achieved, thereby ensuring that the electromagnet 203, the connecting wire 201b, the diagonal power block 104 and the rotating power sleeve 103a are energized. By using the rainproof cover 102 and the rainproof cover 2 103, the contact point between the power strip 102a and the duckbill power connector is rainproofed. Example 3

[0045] See also Figure 6 and Figure 7 On the basis of Example 1, this embodiment limits the metal column 204 by means of the slider 201c-1 and the positioning ring 201c, thereby ensuring the stability of the position of the metal column 204 when it moves up and down.

[0046] Specifically, a mounting ring 201d for fixing the electromagnet 203 is fixed inside the linkage cylinder 201, a positioning ring 201c sleeved on the metal column 204 is fixed to the inner side wall of the linkage cylinder 201 located above the mounting ring 201d, a through hole 201e is penetrated through the outer side wall of the linkage cylinder 201 located between the mounting ring 201d and the positioning ring 201c, the pull rope 202a passes through the inner position of the through hole 201e, two sliding openings 204d symmetrically arranged along the circumferential direction are opened on the outer side of the metal column 204, and a slider 201c-1 sliding in the inner position of the sliding opening 204d is fixed to the inner side wall of the positioning ring 201c;

[0047] Through the setting and use of the above-mentioned structure, when the pull rope 202a is pulled, the pull rope 202a is in the internal sliding position of the through hole 201e, and at the same time, when the metal column 204 slides up and down inside the linkage cylinder 201, the metal column 204 at this time moves along the slider 201c-1 through the sliding mouth 204d, and at the same time, the metal column 204 will slide on the inner side of the positioning ring 201c, and the slider 201c-1 is in the sliding mouth 204d. The cooperation of the slider 201c-1 and the positioning ring 201c is used to limit the metal column 204 to ensure the stability of the position of the metal column 204 when it moves up and down. Example 4

[0048] See also Figure 6 , Figure 7 and Fig. 9 On the basis of Example 1, this embodiment can avoid the collision between the open ring 204c and the linkage cylinder 201 and reduce the friction of the open ring 204c by connecting the pulley 204e with the surface wall of the linkage cylinder 201.

[0049] Specifically, a shielding frame 201c-2 is fixed to the surface side wall of the linkage cylinder 201 located above the electromagnet 203, a strip-shaped opening 201f is penetrated through the surface side wall of the linkage cylinder 201 located inside the shielding frame 201c-2, a connecting plate 204b that slides through the inner position of the strip opening 201f is fixed to the upper end surface of the metal column 204, a vertical plate 204a fixedly connected to the upper end surface of the open ring 204c is fixed to the lower end surface of the connecting plate 204b, a recess 204c-3 is provided on the inner side wall of the open ring 204c, a pulley 204e is rotatably arranged inside the recess 204c-3, three positioning holes 201a-1 arranged equidistantly in a ring shape are provided on the upper end surface of the abutment ring 201a, and three positioning rods 204c-1 that respectively pass through the inner positions of the positioning holes 201a-1 are fixed to the lower end surface of the open ring 204c;

[0050] By setting and using the above-mentioned structure, since the shielding frame 201c-2 is installed at the position of the strip opening 201f, the shielding frame 201c-2 has a rainproof function for the strip opening 201f, preventing rainwater from entering the linkage cylinder 201. At the same time, when the metal column 204 moves, the metal column 204 will drive the connecting plate 204b to slide in the internal position of the strip opening 201f, and thereby drive the open ring 204c to slide on the surface wall of the linkage cylinder 201 through the vertical plate 204a, so that the pulley 204e on the inner side of the open ring 204c will rotate on the surface wall of the linkage cylinder 201, and the pulley 204e is connected to the linkage cylinder 201, so as to avoid the open ring 204c and the linkage cylinder 201 from being connected. The collision between the two can reduce the friction on the open ring 204c, and the opening position of the open ring 204c is consistent with the position of the connecting wire 201b. Therefore, when the open ring 204c moves, it will not interfere with the connecting wire 201b. When the open ring 204c moves up and down, the open ring 204c will drive the positioning rod 204c-1 to move inside the positioning hole 201a-1. Since the positioning rod 204c-1 will pass through the internal position of the positioning spring 204c-2, when the open ring 204c compresses the positioning spring 204c-2, the positioning rod 204c-1 will limit the positioning spring 204c-2 to avoid excessive bending of the positioning spring 204c-2. Example 5

[0051] See also Fig.10 and Fig.11 On the basis of Example 1, this embodiment pulls the piston block 402a through the elastic rope 402b, so that the push rod 402 can be automatically reset to the push cylinder 401.

[0052] Specifically, a moving hole 401c connected to the interior of the push cylinder 401 is provided on the end surface of the push cylinder 401 close to the linkage cylinder 201, a ring plate 401a is fixed inside the push cylinder 401, a cross plate 401b is fixed to one end of the push cylinder 401 connected to the connecting pipe 301b, a piston block 402a located inside the push cylinder 401 is fixed to one end of the push rod 402, an elastic rope 402b is fixed to the end surface of the piston block 402a, and a locking plate 402c bolted to the cross plate 401b is fixed to the other end of the elastic rope 402b;

[0053] By setting and using the above structure, when the fuse 301a inside the fuse tube 301 is disconnected due to a short circuit, the high-temperature gas generated at this time will control the piston block 402a to push, so that the piston block 402a controls the push rod 402 to move out from the internal position of the moving hole 401c, and the push rod 402 abuts against the surface wall of the linkage cylinder 201, and the piston block 402a will limit the elastic rope 402b after moving. Therefore, when the high-temperature gas generated gradually cools down, the air pressure inside the fuse tube 301 is close to the external air pressure, so that the piston block 402a is no longer pushed, and the elastic rope 402b will pull the piston block 402a to its original position, so that the piston block 402a abuts against the ring plate 401a again, and thereby control the push rod 402 to move back into the push cylinder 401.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent fuse with a fault distance measurement function, characterized in that: include, An insulating assembly (100) comprises an insulating column (101), two rainproof covers (102) disposed at right angles above the insulating column (101), and two rainproof covers (103) disposed at right angles below the insulating column (101), wherein a diagonal electric block (104) is fixed at a position between the two rainproof covers (103); The linkage switching assembly (200) comprises a linkage cylinder (201) arranged in parallel with the insulating column (101), an electromagnet (203) fixed at the bottom of the linkage cylinder (201), and a metal column (204) located directly above the electromagnet (203); The fuse assembly (300) comprises two fuse tubes (301) symmetrically located on the left and right sides of a linkage cylinder (201), the fuse tubes (301) being located between a first rain cover (102) and a second rain cover (103) which are located at the same upper and lower positions, a fuse wire (301a) being fixed between the upper and lower surfaces inside the fuse tubes (301), and the linkage cylinder (201) being located between the two fuse tubes (301); and, The gas pushing assembly (400) comprises a pushing cylinder (401) located at one side of the linkage cylinder (201) and a pushing rod (402) located inside the pushing cylinder (401); a connecting tube (301b) sealed and connected to the pushing cylinder (401) is fixedly connected to the surface of the fuse tube (301) near the pushing cylinder (401); A collar (202) sleeved on the fuse tube (301) is provided at the other side of the linkage cylinder (201); a pull rope (202a) fixed on the surface of the collar (202) is fixedly connected to the upper surface of the metal column (204); an open ring (204c) is sleeved on the surface of the linkage cylinder (201) below the push cylinder (401); an abutment ring (201a) is fixed on the surface of the linkage cylinder (201) below the open ring (204c); and a positioning spring (204c-2) is fixed between the open ring (204c) and the abutment ring (201a); The end surface of the pushing cylinder (401) close to the linkage cylinder (201) is provided with a moving hole (401c) connected to the interior thereof, a ring plate (401a) is fixed inside the pushing cylinder (401), and a cross plate (401b) is fixed to one end of the pushing cylinder (401) connected to the connecting pipe (301b); A piston block (402a) located inside the pushing cylinder (401) is fixed to one end of the pushing rod (402), an elastic rope (402b) is fixed to the end surface of the piston block (402a), and a locking plate (402c) bolted to the cross plate (401b) is fixed to the other end of the elastic rope (402b).

2. The intelligent fuse with fault distance measurement function according to claim 1, characterized in that: The upper end surface of the rain cover 1 (102) is fixed with an electrical connection plate (102a), and the inner side of the end of the rain cover 1 (102) away from the insulating column (101) is fixed with a duckbill electrical clamp (102b) electrically connected to the electrical connection plate (102a).

3. The intelligent fuse with fault distance measurement function according to claim 2, characterized in that: A rotating electrical sleeve (103a) electrically connected to a diagonal electrical block (104) is fixed to the inner side of the end of the second rainproof cover (103) away from the insulating column (101), and a mounting frame (101a) is fixed to the middle position of the insulating column (101), and the mounting frame (101a) is connected to the surface side of the linkage cylinder (201) by bolts.

4. The intelligent fuse with fault distance measurement function according to claim 1, characterized in that: Two connecting wires (201b) arranged vertically are fixed to the surface side wall of the linkage cylinder (201), the connecting wire (201b) located at the top is electrically connected to the diagonal electric block (104), and the two ends of the coil of the electromagnet (203) are respectively electrically connected to the adjacent connecting wires (201b).

5. The intelligent fuse with fault distance measurement function according to claim 1, characterized in that: A mounting ring (201d) for fixing the electromagnet (203) is fixed inside the linkage cylinder (201); a positioning ring (201c) sleeved on a metal column (204) is fixed to the inner side wall of the linkage cylinder (201) located above the mounting ring (201d); a through hole (201e) is provided through the outer side wall of the linkage cylinder (201) located between the mounting ring (201d) and the positioning ring (201c); and the pull rope (202a) passes through the inner position of the through hole (201e).

6. The intelligent fuse with fault distance measurement function according to claim 5, characterized in that: Two symmetrically arranged sliding openings (204d) are provided on the surface side of the metal column (204) along the circumferential direction, and a sliding block (201c-1) is fixed on the inner side wall of the positioning ring (201c) and slides in a position inside the sliding opening (204d).

7. The intelligent fuse with fault distance measurement function according to claim 1, characterized in that: A shielding frame (201c-2) is fixed to the outer side wall of the linkage cylinder (201) located above the electromagnet (203), and a strip-shaped opening (201f) is provided through the outer side wall of the linkage cylinder (201) located inside the shielding frame (201c-2); A connecting plate (204b) that slides through the inner position of the strip-shaped opening (201f) is fixed to the upper end surface of the metal column (204), and a vertical plate (204a) that is fixedly connected to the upper end surface of the open ring (204c) is fixed to the lower end surface of the connecting plate (204b).

8. The intelligent fuse with fault distance measurement function according to claim 7, characterized in that: The inner side wall of the open ring (204c) is provided with a notch (204c-3), a pulley (204e) is rotatably arranged inside the notch (204c-3), the upper end surface of the abutment ring (201a) is provided with three locating holes (201a-1) arranged in an annular shape and at equal intervals, and the lower end surface of the open ring (204c) is fixed with three locating rods (204c-1) which respectively pass through the internal positions of the locating holes (201a-1).

9. The intelligent fuse with fault distance measurement function according to claim 1, characterized in that: An electric pole (303) connected to the fuse (301a) is fixed to the upper end surface of the fuse tube (301), and a rotating ring (302) rotatably connected to the rotating electric sleeve (103a) is fixed to the lower end of the fuse tube (301).

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