CN109979790B

CN109979790B - Circuit fusing protector

Info

Publication number: CN109979790B
Application number: CN201910377355.5A
Authority: CN
Inventors: 梁根如
Original assignee: Shenzhen Zhongyuan Photoelectricity Co Ltd
Current assignee: Shenzhen CHUANGMEI United Technology Co.,Ltd.
Priority date: 2019-05-04
Filing date: 2019-05-04
Publication date: 2020-02-18
Anticipated expiration: 2039-05-04
Also published as: CN109979790A

Abstract

The invention provides a circuit fusing protector, which comprises a rectangular bottom plate and a shell which are arranged in a clamping way, wherein the bottom plate and the shell form a box body structure, a butt joint mechanism and a rotary safety mechanism which are fixedly connected with the bottom plate are arranged in the box body, the input end and the output end of the butt joint mechanism are mutually disconnected, the rotary safety mechanism is connected in series between the input end of the butt joint mechanism and the output end of the butt joint mechanism, the whole body formed by the butt joint mechanism and the rotary safety mechanism is connected in series on a live wire, the rotary safety mechanism comprises a roller, the axis of the roller is parallel to the length direction of the bottom plate, a safety pipe assembly is movably embedded in the roller and is provided with a plurality of safety pipe assemblies which are arranged along the circumference of the roller in an array manner, one end of the safety pipe assembly is movably butted against the input end of the butt joint, and the rotary driving mechanism is used for driving the roller to rotate.

Description

Circuit fusing protector

Technical Field

The invention relates to a circuit protector, in particular to a circuit fusing protector.

Background

The fuse is also called as a current fuse, and mainly plays a role in overload protection, if the fuse is not correctly arranged in the circuit, when the circuit is in a fault or abnormal state, the gradually increased current may damage some important devices in the circuit along with the continuous increase of the current, and may also burn the circuit or even cause a fire, if the fuse is correctly arranged in the circuit, the fuse will automatically fuse and cut off the current when the current is abnormally increased to a certain height and heat, so as to protect the safe operation of the circuit, the fuse has irreplaceable effect on the normal operation of the protection circuit, however, the fuse has certain defects in the use process, after the fuse is broken, the fuse after being melted needs to be manually replaced, the circuit is switched on to operate normally again, the fuse replacing operation needs to be performed with power failure treatment and certain power consumption knowledge is mastered, the circuit fusing protector is ingenious in structure, simple in principle and capable of replacing fused fuses one key and enabling the circuit to recover normal operation.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide the circuit fusing protector which has ingenious structure and simple principle and can replace the fused fuse by one key and restore the normal operation of the circuit.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The circuit fuse protector comprises a rectangular bottom plate and a shell which are arranged in a clamping manner, the bottom plate and the shell form a box body structure, a butt joint mechanism and a rotary safety mechanism which are fixedly connected with the bottom plate are arranged in the box body, the input end and the output end of the butt joint mechanism are mutually disconnected, the rotary safety mechanism is connected between the input end of the butt joint mechanism and the output end of the butt joint mechanism in series, the whole formed by the butt joint mechanism and the rotary safety mechanism is connected on a live wire in series, the rotary safety mechanism comprises a roller, the axis of the roller is parallel to the length direction of the bottom plate, a plurality of safety pipe assemblies are movably embedded in the roller and arranged along the circumference where the roller is located in an array manner, one end of each safety pipe assembly is movably abutted with the;

the bottom plate is also provided with an ejection mechanism which is used for automatically triggering and automatically pushing the fused fuse assembly out of the roller, and the bottom plate is also provided with a rotary driving mechanism which is used for driving the roller to rotate.

As a further optimization or improvement of the present solution.

The butt joint mechanism comprises a first vertical plate arranged at one end of the bottom plate along the length direction, the first vertical plate is arranged along the width direction of the bottom plate, an insulated butt joint disc is fixedly arranged on the first vertical plate, the axial direction of the butt joint disc is parallel to the length direction of the bottom plate, the end surface of the butt joint disc close to the other end of the bottom plate along the length direction is coaxially provided with a first annular groove and a second annular groove, the diameter of the first annular groove is larger than that of the second annular groove, the bottom plate is provided with a wiring port, an output conductive plate and an input conductive plate which are arranged at intervals are arranged at the opening of the wiring port, the output conductive plate extends towards the inside of the box body and is connected with an output contact arranged at the bottom of the second groove of the annular groove, the input conductive plate extends towards the inside of the box body and is connected with an input contact arranged at the bottom of the first groove of the annular groove, one end of a fuse component is butted with the input contact in an abutting mode, and the other end of the fuse component is butted with the output contact in an abutting mode;

the rotary safety mechanism is positioned on one end face of the butt joint disc, which is provided with a first annular groove, and comprises a rotary main shaft which movably penetrates through the butt joint disc and is in rotary fit with a first vertical plate, the rotary main shaft and the butt joint disc are coaxially arranged, a sleeve is coaxially and fixedly sleeved outside the rotary main shaft, a roller is coaxially sleeved outside the sleeve, a gap H is formed between the roller and the sleeve, and the roller and the butt joint disc are close to one end face and can be rotationally attached;

the roller is provided with a first mounting hole which is parallel to the axial direction of the roller and penetrates through the roller, the first mounting holes are provided with a plurality of mounting holes which are arranged in an array mode along the circumferential direction of the roller, preferably, the number of the first mounting holes is eight, and the fuse tube assembly is coaxially embedded in the first mounting holes in a sliding mode.

As a further optimization or improvement of the present solution.

The roller is provided with a second mounting hole which is parallel to the axial direction of the roller and penetrates through the roller, the second mounting hole is provided with a plurality of first mounting holes which are matched with the first mounting holes one by one, the first mounting holes and the second mounting holes are alternately arranged, the first mounting holes and the first annular grooves are oppositely arranged, a first communication groove which is communicated with the first mounting hole and the second mounting hole is arranged on the end surface of the roller, which is far away from the first butt joint disc, a second communication groove which is communicated with the first mounting hole is arranged on the end surface of the roller, which is close to the first butt joint disc, the second communication groove and the second annular groove are oppositely arranged, a first lantern ring which is fixedly embedded on the inner wall of the first mounting hole is movably sleeved at one end of the fuse tube assembly, a first slide bar which is parallel to the axial direction of the butt joint disc and extends to abut against the groove bottom of the second annular, and a second sliding rod extending to abut against the bottom of the first annular groove is fixedly arranged in the second mounting hole, the second lantern ring is electrically connected with the second sliding rod, the connecting piece is positioned in the first communicating groove, in an initial state, the first sliding rod connected with one end of a fuse assembly abuts against and abuts against the input contact, and the second sliding rod connected with the other end of the fuse assembly abuts against and abuts against the output contact.

As a further optimization or improvement of the present solution.

The fuse tube assembly comprises an insulating tube body with openings at two ends, one end of the tube body close to the butt joint disc is fixedly sleeved with a first conductive end cover matched with the tube body, one end of the tube body far away from the butt joint disc is fixedly sleeved with a second conductive end cover matched with the tube body, the first conductive end cover and the second conductive end cover are of a cylinder structure with an opening at one end, the first lantern ring is movably sleeved outside the first conductive end cover, the second lantern ring is movably sleeved outside the second conductive end cover, the second conductive end cover is internally and coaxially provided with a conductive disc and is mutually contacted with the conductive disc, the conductive disc is matched with the second conductive end cover and forms sliding guide fit along the axial direction of the conductive disc, the bottom of the conductive disc and the bottom of the second conductive end cover are arranged at intervals in an initial state, a fuse for connecting the first conductive end cover and the conductive disc is arranged, a separation spring is arranged outside the fuse, one end of the separation spring is abutted against one of the insulating gaskets, the other end of the separation spring is abutted against the other insulating gasket, and the elastic force of the separation spring always pushes the two insulating gaskets to move away from each other;

an ejector rod is coaxially and fixedly arranged on one end face of the conductive disc close to the second conductive end cover, a sliding hole is coaxially formed in the bottom of the second conductive end cover, and the ejector rod is matched with the sliding hole and forms sliding guide fit along the axial direction of the ejector rod;

the butt joint disc is provided with an outlet hole parallel to the axial direction of the butt joint disc, the outlet hole is positioned between the input contact and the output contact, the diameter of the outlet hole is larger than that of the fuse assembly, the fuse assembly in butt joint with the input contact and the output contact is coaxially arranged with the outlet hole, one end of the outlet hole, which is far away from the roller, is coaxially provided with an outlet pipe communicated with the outlet hole, and the output end of the outlet pipe extends to the outside of the shell.

As a further optimization or improvement of the present solution.

The ejection mechanism comprises a second vertical plate arranged at the other end of the bottom plate along the length direction, the second vertical plate is arranged along the width direction of the bottom plate, guide rails parallel to the length direction of the bottom plate are arranged between the second vertical plate and the roller, the guide rails are provided with two guide rails which are vertically and symmetrically arranged along the axis direction of the guide-out hole, a rectangular shell and a cylindrical shell which are fixedly connected into a whole are arranged between the two guide rails, the rectangular shell is arranged close to the second vertical plate, the cylindrical shell is arranged close to the roller, the cylindrical shell is fixedly connected with one side surface of the rectangular shell, the upper end and the lower end of the rectangular shell are both positioned in the guide rails and can slide along the length direction parallel to the bottom plate, the rectangular shell is attached to the second vertical plate in an initial state, the cylindrical shell and the guide-out hole are coaxially arranged, the diameter of the cylindrical shell is smaller than;

the surface of the rectangular shell is provided with wing plates which are arranged in the width direction parallel to the bottom plate, the wing plates are arranged on two sides and are symmetrically arranged in the length direction parallel to the bottom plate, a first guide rod which is parallel to the length direction of the bottom plate is arranged between the wing plates and a second vertical plate, one end of the first guide rod is fixedly connected with the wing plates, the other end of the first guide rod penetrates through the second vertical plate and extends outwards to the outside of the shell, the first guide rod and the second vertical plate form sliding guide fit in the length direction parallel to the bottom plate, a handle is arranged between the extending ends of the first guide rods, a first compression spring is movably sleeved outside the first guide rod, one end of the first compression spring is abutted against the wing plates, the other end of the first compression spring is abutted against the second vertical plate, the elastic force of the first compression spring is always directed to the wing plates by the second vertical plates, the rectangular shell, the limiting port is used for limiting and restricting the trigger component in the initial state.

As a further optimization or improvement of the present solution.

The trigger member comprises a horn plate which is rotatably arranged on the inner wall of the rectangular shell, the axial direction of the rotating shaft is parallel to the width direction of the bottom plate, two spring clamps which are rotatably arranged on the inner wall of the rectangular shell, the axial direction of the rotating shaft is parallel to the width direction of the bottom plate, the two horn plates are arranged in an up-and-down symmetrical manner, one ends of the horn plates close to each other are obliquely arranged towards the roller, the two spring clamps are arranged and correspond to the horn plates one by one, the trigger member also comprises a trigger rod which is movably arranged in the cylindrical shell, the trigger rod is matched with the cylindrical shell and forms sliding guide fit along the length direction parallel to the bottom plate, one end of the horn plate extends outwards from an opening of the rectangular shell and is clamped in a limiting opening in the rectangular shell in an initial state, one end of the trigger rod extends into the rectangular shell, a trigger block is fixedly arranged at, the trigger block is located one side of ox scute and triggers the slope end of piece and ox horn board and contradict each other, and the spring card is located the opposite side of ox scute and the slope end of spring card and ox horn board contradicts each other, and the elasticity of spring card promotes the ox scute all the time and is close to the trigger block and rotate.

As a further optimization or improvement of the present solution.

The rotary driving mechanism comprises a third vertical plate fixedly connected with one end, away from the guide rail, of the second vertical plate, a second guide rod is arranged on a fixing frame of the third vertical plate, the two guide rods are arranged symmetrically up and down, a sliding block is sleeved on the second guide rod, the sliding block is matched with the second guide rod and forms sliding guide fit along the length direction parallel to the bottom plate, a second compression spring is sleeved outside the second guide rod, one end of the second compression spring is abutted to the sliding block, the other end of the second compression spring is abutted to the second vertical plate, the elastic force of the second compression spring is always directed to the sliding block by the second vertical plate, a reciprocating rod parallel to the length direction of the bottom plate is fixedly arranged on one end face, away from the second vertical plate, of the sliding block and extends into a gap H, rotary guide grooves obliquely arranged are formed in the outer circumferential surface of the sleeve, eight rotary guide grooves are arranged, The end and the head end far away from the butt joint disc, the head and tail ends of two adjacent rotary guide grooves are aligned along the axial direction parallel to the sleeve, transition grooves for communicating the two rotary guide grooves are formed in the head and tail ends of the two adjacent rotary guide grooves, the groove depth of each transition groove is smaller than that of each rotary guide groove, a transition inclined plane is arranged between each transition groove and the tail end of one rotary guide groove, a rotary guide block is movably arranged at the extending end of the reciprocating rod, the rotary guide block is matched with the rotary guide grooves and forms sliding guide fit along the guide direction of the rotary guide grooves, and the rotary guide block is positioned at the tail end of the rotary guide groove in the initial state;

the rotary guide block is arranged at the extending end of the reciprocating rod in a floating manner along the radial direction of the sleeve, the extending end of the reciprocating rod is also provided with a spring piece, the spring piece is connected with the rotary guide block, and the elastic force of the spring piece always pushes the rotary guide block to be attached to the bottom of the rotary guide groove;

the slide block is provided with a blocking component close to one side face of the wing plate and used for receiving motive power generated by the restoration motion of the wing plate, the blocking component comprises a first mounting groove arranged on one side face of the slide block close to the wing plate, the first mounting groove penetrates through the length direction of the base plate, a stop block arranged towards the outside of an opening of the first mounting groove is rotatably arranged in the first mounting groove, the axial direction of the rotating shaft is vertical to the plane of the base plate, the rotating shaft of the stop block is arranged close to the groove bottom of the first mounting groove, the stop block is arranged along the width direction parallel to the base plate in an initial state, one end of the stop block, which deviates from the rotating shaft, is obliquely arranged and the inclined surface is close to a second vertical plate, the slide block is provided with a second mounting groove which is vertically arranged, the upper end of the second mounting, the constraint block extends into the first mounting groove and is in contact with one end face, close to the second vertical plate, of the stop block, the constraint block is used for limiting the stop block to rotate close to the second vertical plate around a rotating shaft of the stop block, a supporting bottom block is fixedly arranged at the bottom of the sliding block, a top bracing spring is arranged between the supporting bottom block and the constraint block, one end of the top bracing spring is fixedly connected with the supporting bottom block, the other end of the top bracing spring is fixedly connected with the constraint block, and the elastic force of the top bracing spring is always limited by the orientation.

As a further optimization or improvement of the present solution.

The middle position of the restraint block is provided with a trigger inclined plane, the distance between the trigger inclined plane and the bottom plate is gradually reduced from the first vertical plate to the second vertical plate, an open groove communicated with the second mounting groove and aligned with the trigger inclined plane is formed in the end face, close to the second vertical plate, of the sliding block, a trigger inserting rod aligned with the open groove is arranged on the end face, close to the sliding block, of the second vertical plate, the restraint block is forced to slide downwards along the second mounting groove under the action of elasticity of a jacking spring through extrusion of the trigger inserting rod on the trigger inclined plane, the restraint block releases rotation restraint on the stop block, the stop block rotates around a rotating shaft of the stop block, close to the second vertical plate and is separated from a wing plate, and the;

the top of the restraint block, which is close to one end face of the stop block, is provided with a reset magnetic strip, the stop block is made of ferromagnetic materials, the top of the restraint block is provided with a reset inclined plane, and the distance between the reset inclined plane and the bottom plate is gradually increased along the direction from the first vertical plate to the second vertical plate.

Compared with the prior art, the invention has the advantages of ingenious structure, simple principle and capability of replacing the fused fuse by one key, a plurality of fuses are arranged in the roller along the circumferential direction in an array manner, one fuse is movably butted and connected with the live wire in series, and the fused fuse is separated from the live wire by rotating the roller, so that the brand new fuse is butted with the live wire, the convenience of replacing the fuse by a user is improved, and the electricity utilization safety of the user is enhanced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of the working state of the present invention.

Fig. 4 is a schematic structural diagram of the working state of the present invention.

Fig. 5 is an installation diagram of the docking mechanism and the wheel safety mechanism.

Fig. 6 is an installation view of the docking mechanism.

Fig. 7 is a schematic structural diagram of the docking mechanism.

Fig. 8 is a connection diagram of the wheel safety mechanism and the docking mechanism.

Fig. 9 is an exploded view of the cycle safety mechanism.

Fig. 10 is a partial structural schematic view of the wheel rotation safety mechanism.

Fig. 11 is a partial structural schematic view of the wheel rotation safety mechanism.

Fig. 12 is a schematic structural view of a fuse assembly.

Figure 13 is an exploded view of the fuse assembly.

Figure 14 is a partial cross-sectional view of a fuse assembly.

Figure 15 is a partial cross-sectional view of a fuse assembly.

Fig. 16 is a partial schematic view of a fuse assembly.

Fig. 17 is a partial structural schematic view of the wheel rotation safety mechanism.

Figure 18 is a connection diagram of the fuse assembly and the docking mechanism.

Figure 19 is a view of the fuse assembly in cooperation with the ejection mechanism.

Fig. 20 is a schematic structural view of the ejection mechanism.

Fig. 21 is a schematic structural view of the ejection mechanism.

Fig. 22 is a schematic view of the internal structure of the ejection mechanism.

Fig. 23 is a schematic structural view of the trigger member.

Fig. 24 is a schematic structural view of the operating state of the ejection mechanism.

Fig. 25 is a schematic structural view of the operating state of the ejection mechanism.

Fig. 26 is a schematic structural view of the rotation drive mechanism.

Fig. 27 is a partial view of the rotary drive mechanism and the wheel safety mechanism.

Fig. 28 is a partial structural view of the rotation driving mechanism.

Fig. 29 is a partial structural schematic view of the wheel safety mechanism.

Fig. 30 is a view showing the cooperation of the ejection mechanism and the rotary drive mechanism.

Fig. 31 is a view showing the cooperation of the ejection mechanism and the rotary drive mechanism.

Fig. 32 is a partial configuration diagram of the rotation driving mechanism.

Fig. 33 is a partial view of the rotary drive mechanism.

Fig. 34 is a partial configuration diagram of the rotation driving mechanism.

Fig. 35 is a partial structural view of the rotation driving mechanism.

Fig. 36 is a schematic structural view showing an operating state of the rotation driving mechanism.

Labeled as:

110. a base plate; 111. a wiring port; 120. a housing;

210. a docking mechanism; 211. a first vertical plate; 212. a docking tray; 213. a first annular groove; 214. a second annular groove; 215. an input contact; 216. an output contact; 217. an output conductive plate; 218. inputting a conductive plate; 220. a wheel rotation safety mechanism; 221. rotating the main shaft; 222. a sleeve; 222a, a rotation guide groove; 222b, a transition groove; 222c, a transition bevel; 223. a drum; 223a and a first mounting hole; 223b and a second mounting hole; 223c, a first communication groove; 223d, a second communication groove; 224. a pipe body; 224a, a first conductive end cap; 224b, a second conductive end cap; 225a, a conductive disc; 225b, a top rod; 226. a fuse; 227. an insulating spacer; 228. a separation spring; 231. a lantern ring I; 232. a first sliding rod; 233. a second lantern ring; 234. a second sliding rod; 240. a lead-out hole; 241. a delivery pipe;

300. an ejection mechanism; 301. a second vertical plate; 302. a guide rail; 302a, a limiting port; 303. a rectangular shell; 304. a cylindrical shell; 305. a wing plate; 306. a first guide rod; 307. a handle; 308. a first compression spring; 310. a trigger member; 311. a horn plate; 312. a spring clip; 313. a trigger block; 314. a trigger lever;

400. a rotation driving mechanism; 401. a third vertical plate; 402. a second guide rod; 403. a slider; 404. a second compression spring; 405. a reciprocating lever; 406a, a rotating guide block; 406b, a spring plate; 411. a first mounting groove; 412. a stopper; 413. a second mounting groove; 414. a constraint block; 414a, resetting the magnetic strip; 414b, reset ramp; 415. a jacking spring; 416. a bottom supporting block; 417. triggering the inclined plane; 418. an open slot; 419. triggering the inserted link.

Detailed Description

The circuit fusing protector comprises a rectangular bottom plate 110 and a shell 120 which are arranged in a clamping manner, the bottom plate 110 and the shell 120 form a box body structure, a butting mechanism 210 and a rotary safety mechanism 220 which are fixedly connected with the bottom plate 110 are arranged in the box body, the input end and the output end of the docking mechanism 210 are disconnected, the wheel-rotating safety mechanism 220 is connected in series between the input end of the docking mechanism 210 and the output end of the docking mechanism 210, and the whole body formed by the butt joint mechanism 210 and the rotary safety mechanism 220 is connected in series on the live wire, the rotary safety mechanism 220 comprises a roller 223 with the axis parallel to the length direction of the bottom plate 110, a safety pipe assembly is movably embedded in the roller 223, the safety pipe assembly is provided with a plurality of parts and is arranged along the circumference array of the roller 223, one end of one of the safety tube assembly is movably abutted with the input end of the docking mechanism 210, and the other end is movably abutted with the output end of the docking mechanism 210.

In order to push the fused fuse assembly out of the roller 223, an ejection mechanism 300 for automatically triggering and pushing the fused fuse assembly out of the roller 223 is further disposed on the bottom plate 110, and in order to automatically replace the fuse assembly and automatically dock the fuse assembly with the docking mechanism 210, a rotary driving mechanism 400 for driving the roller 223 to rotate is further disposed on the bottom plate 110.

When a user uses the circuit, when the current of the circuit is abnormally increased and the fuse assembly connected with the docking mechanism 210 in series is fused, the fuse assembly releases the elastic potential energy stored in the fuse assembly at the moment of fusing and triggers the ejection mechanism 300, the ejection mechanism 300 is triggered and pushes the fused fuse assembly out of the roller 223, then, after the user checks circuit faults and properly processes the circuit faults, the user manually pulls the ejection mechanism 300 to reset, in the process, the ejection mechanism 300 provides motive power for the rotation driving mechanism 400, the rotation driving mechanism 400 automatically rotates the roller 223 by a certain angle and enables the adjacent fuse assemblies to rotate to abut against the docking mechanism 210 in a movable abutting mode, at the moment, the live wire is conducted, and the circuit returns to normal operation.

The butting mechanism 210 comprises a first vertical plate 211 arranged at one end of the bottom plate 110 in the length direction, the first vertical plate 211 is arranged in the width direction of the bottom plate 110, an insulated butting disc 212 is fixedly mounted on the first vertical plate 211, the axial direction of the butting disc 212 is parallel to the length direction of the bottom plate 110, a first annular groove 213 and a second annular groove 214 are coaxially formed in the end face, close to the other end of the bottom plate 110 in the length direction, of the butting disc 212, the diameter of the first annular groove 213 is larger than that of the second annular groove 214, in order to facilitate butting of the butting disc 212 with a live wire and a wheel-rotating safety mechanism 220, a wire connecting port 111 is formed in the bottom plate 110, an output conductive plate 217 and an input conductive plate 218 which are arranged at intervals are arranged at the opening of the wire connecting port 111, the output conductive plate 217 extends towards the inside of the box and is connected with an output contact 216 arranged at the, one end of a fuse assembly is butted against the input contact 215, and the other end is butted against the output contact 216.

The rotating safety mechanism 220 is located on one end face, provided with a first annular groove 213, of the butt joint disc 212, the rotating safety mechanism 220 comprises a rotating main shaft 221 which movably penetrates through the butt joint disc 212 and is in rotating fit with a first vertical plate 211, the rotating main shaft 221 and the butt joint disc 212 are coaxially arranged, a sleeve 222 is coaxially and fixedly sleeved outside the rotating main shaft 221, a gap H is formed between the rotating main shaft and the sleeve 222, the rotating drum 223 is coaxially sleeved outside the sleeve 222, and the rotating drum 223 and the butt joint disc 212 are close to one end face and can be rotatably attached.

Specifically, in order to facilitate the installation of the fuse assembly and the butt joint between the fuse assembly and the input contact 215 and the output contact 216, a first mounting hole 223a parallel to the axial direction of the roller 223 and penetrating through the roller 223 is formed on the roller 223, the first mounting hole 223a is provided with a plurality of mounting holes and is arranged in an array along the circumferential direction of the roller 223, preferably, eight mounting holes 223a are formed, and the fuse assembly is coaxially and slidably embedded in the first mounting hole 223 a.

More specifically, in order to facilitate the movable abutting joint of one end of one fuse assembly and the input contact 215 and the movable abutting joint of the other end of the one fuse assembly and the output contact 216, the roller 223 is provided with a second mounting hole 223b which is parallel to the axial direction of the roller and penetrates through the roller, the second mounting hole 223b is provided with a plurality of first mounting holes 223a which are matched with the first mounting holes 223a one by one, the first mounting holes 223a and the second mounting holes 223b are alternately arranged, the first mounting holes 223a are arranged opposite to the first annular groove 213, one end surface of the roller 223, which is far away from the docking plate 212, is provided with first communicating grooves 223c which are communicated with the first mounting holes 223a and the second mounting holes 223b, one end surface of the roller 223, which is close to the docking plate 212, is provided with second communicating grooves 223d which are communicated with the first mounting holes 223a, the second communicating grooves 223d are arranged opposite to the second annular grooves 214, a first sliding rod 232 which is parallel to the axial direction of the butt joint disk 212 and extends to abut against the bottom of the second annular groove 214 is arranged in the second communication groove 223d, the first sleeve ring 231 is electrically connected with the first sliding rod 232, a second sleeve ring 233 fixedly embedded on the inner wall of the first mounting hole 223a is movably sleeved at one end, which is far away from the butt joint disk 212, of the fuse tube assembly, a second sliding rod 234 which extends to abut against the bottom of the first annular groove 213 is fixedly arranged in the second mounting hole 223b, the second sleeve ring 233 and the second sliding rod 234 are electrically connected, a connecting piece is located in the first communication groove 223c, in an initial state, the first sliding rod 232 connected with one end of one of the fuse tube assembly abuts against and abuts against the input contact.

When the fuse assemblies butted with the input contact 215 and the output contact 216 are fused and damaged, the rotary driving mechanism 400 receives motive power generated by manual reset motion of the ejection mechanism 300 and drives the sleeve 222 to rotate for forty-five degrees around the rotary main shaft 221, the sleeve 222 drives the roller 223 to synchronously rotate, so that the first connected sliding rod 232 connected with the fused fuse assemblies synchronously rotates and is separated from the input contact 215, the second connected sliding rod 234 synchronously rotates and is separated from the output contact 216, in the process, the first connected sliding rod 232 synchronously rotates and is butted with the output contact 215, the second connected sliding rod 234 synchronously rotates and is butted with the output contact 216, a circuit returns to normal operation, and automatic replacement processing of the fused fuse assemblies is realized.

The fuse assembly comprises an insulating tube body 224 with openings at two ends, a first conductive end cover 224a matched with the tube body 224 and a second conductive end cover 224b matched with the tube body 224 are fixedly sleeved at one end close to the butt joint disc 212, the first conductive end cover 224a and the second conductive end cover 224b are fixedly sleeved at one end away from the butt joint disc 212, the first conductive end cover 224a and the second conductive end cover 224b are of a cylindrical structure with an opening at one end, a first sleeve ring 231 is movably sleeved outside the first conductive end cover 224a, a second sleeve ring 233 is movably sleeved outside the second conductive end cover 224b, a conductive disc 225a is coaxially arranged in the second conductive end cover 224b and is in contact with the conductive disc 225a, the conductive disc 225a is matched with the second conductive end cover 224b and forms sliding guide fit along the axial direction of the conductive disc 225a and the second conductive end cover 224b, a fuse 226 used for connecting the first conductive, the bottom of the first conductive end cap 224a and an end face of the conductive disc 225a close to the first conductive end cap 224a are both provided with an insulating spacer 227, a separation spring 228 is arranged outside the fuse 226, one end of the separation spring 228 abuts against one insulating spacer 227, the other end abuts against the other insulating spacer 227, and the elastic force of the separation spring 228 always pushes the two insulating spacers 227 to move away from each other.

Specifically, after the fuse 226 is fused, in order to receive the elastic force of the separation spring 228 and enable the ejection mechanism 300 to be automatically triggered, a top rod 225b is coaxially and fixedly arranged on one end face of the conductive disc 225a close to the second conductive end cover 224b, a slide hole is coaxially formed in the bottom of the second conductive end cover 224b, and the top rod 225b is matched with the slide hole and forms sliding guide fit along the axial direction of the slide hole.

In the working process of the fuse assembly, when the fuse assembly is in a normal state, the fuse 226 conducts the first conductive end cap 224a and the second conductive end cap 224b, the docking mechanism 210 is in a conducting state, the docking mechanism 210 connected in series to a live wire can normally operate, when a circuit is abnormal and current is increased sharply, the fuse 226 is heated and fused, at the moment of fusing, the separating spring 228 pushes the conductive disc 225a to slide towards the bottom of the second conductive end cap 224b, the conductive disc 225a drives the ejector rod 225b to synchronously move, the ejector rod 225b slides outwards from the slide hole, and the ejector rod 225 collides with the ejection mechanism 300 and triggers the ejection mechanism 300.

In order to facilitate the ejection mechanism 300 to push the fused fuse assembly out of the first mounting hole 223a, the docking plate 212 is provided with an outlet hole 240 parallel to the axial direction thereof, the outlet hole 240 is located between the input contact 215 and the output contact 216 and has a diameter larger than that of the fuse assembly, the fuse assembly butted with the input contact 215 and the output contact 216 is arranged coaxially with the outlet hole 240, in order to facilitate the fused fuse assembly to be led out to the outside of the box body, one end of the outlet hole 240, which is opposite to the roller 223, is coaxially provided with an outlet pipe 241 communicated with the outlet hole, the output end of the outlet pipe 241 extends to the outside of the housing 120, and the ejection mechanism 300 pushes the fused fuse assembly out of the box body through the outlet hole 240 and the outlet pipe 241 by the pair of push rods 225 b.

The ejection mechanism 300 comprises a second vertical plate 301 arranged at the other end of the bottom plate 110 along the length direction, the second vertical plate 301 is arranged along the width direction of the bottom plate 110, a guide rail 302 parallel to the length direction of the bottom plate 110 is arranged between the second vertical plate 301 and the roller 223, the guide rail 302 is provided with two guide rails and is arranged vertically and symmetrically along the axial direction of the guide-out hole 240, a rectangular shell 303 and a cylindrical shell 304 fixedly connected into a whole are arranged between the two guide rails 302, the rectangular shell 303 is arranged close to the second vertical plate 301, the cylindrical shell 304 is arranged close to the roller 223, the cylindrical shell 304 is fixedly connected with one side surface of the rectangular shell 303, the upper end and the lower end of the rectangular shell 303 are both positioned in the guide rails 302 and can slide along the length direction parallel to the bottom plate 110, the rectangular shell 303 is attached to the second vertical plate 301 in an initial state, the cylindrical shell 304 is coaxially arranged with the guide-, the rectangular shell 303 and the cylindrical shell 304 are formed by fastening symmetrical shell structures to each other, and the rectangular shell 303 slides rapidly towards the roller 223 along the guide rail 302 to drive the cylindrical shell 304 to push the fused fuse assembly out of the first mounting hole 223 a.

Specifically, the surface of the rectangular shell 303 is provided with two wing plates 305 arranged in parallel to the width direction of the base plate 110, the wing plates 305 are arranged in two and symmetrically arranged in parallel to the length direction of the base plate 110, a first guide rod 306 arranged in parallel to the length direction of the base plate 110 is arranged between the wing plates 305 and a second vertical plate 301, one end of the first guide rod 306 is fixedly connected with the wing plates 305, the other end of the first guide rod 306 passes through the second vertical plate 301 and extends outwards to the outside of the shell 120, the first guide rod 306 and the second vertical plate 301 form a sliding guide fit in parallel to the length direction of the base plate 110, a handle 307 is arranged between the extending ends of the first guide rods 306, a first compression spring 308 is movably sleeved outside the first guide rod 306, one end of the first compression spring 308 abuts against the wing plates 305, the other end of the first compression spring abuts against the second vertical plate 301, the elastic force of the first compression spring 308 always points to the wing plates 305 from the second vertical, the rectangular shell 303 is provided with a hollow structure which penetrates through the rectangular shell 303 from top to bottom, a trigger member 310 is arranged in the rectangular shell 303, a limiting opening 302a is formed in the guide rail 302, the limiting opening 302a is arranged close to the second vertical plate 301, and the limiting opening 302a is used for limiting and restricting the trigger member 310 in an initial state.

More specifically, the trigger member 310 includes a bull horn plate 311 rotatably disposed on the inner wall of the rectangular housing 303 and having an axial direction parallel to the width direction of the bottom plate 110, a spring clip 312 rotatably disposed on the inner wall of the rectangular housing 303 and having an axial direction parallel to the width direction of the bottom plate 110, two bull horn plates 311 are disposed and vertically symmetrically disposed, one end of each bull horn plate 311 adjacent to each other is obliquely disposed toward the drum 223, two spring clips 312 are disposed and correspond to the bull horn plates 311 one by one, the trigger member 310 further includes a trigger rod 314 movably disposed in the cylindrical housing 304, the trigger rod 314 is matched with the cylindrical housing 304 and forms a sliding guide fit along a length direction parallel to the bottom plate 110, one end of the bull horn plate 311 extends from the opening of the rectangular housing 303 and is clamped in the limiting opening 302a in an initial state, one end of the trigger rod 314 extends into the rectangular housing 303 and is fixedly disposed with a trigger block 313, The other end extends to the outside of the cylindrical shell 304, the trigger block 313 is located at one side of the bull-horn 311, the trigger block 313 and the inclined end of the bull-horn 311 are abutted against each other, the spring clip 312 is located at the other side of the bull-horn 311, the spring clip 312 and the inclined end of the bull-horn 311 are abutted against each other, and the elastic force of the spring clip 312 always pushes the bull-horn 311 to rotate close to the trigger block 313.

The ejection mechanism 300 is embodied in that, when the fuse 226 is fused, the ejector rod 225b slides towards the outside of the conductive end cap two 224b, the ejector rod two 225b abuts against the trigger rod 314 and pushes the trigger rod 314 towards the inside of the cylindrical shell 304, the trigger rod 314 drives the trigger block 313 to move synchronously, the trigger block 313 drives the bull horn plate 311 to rotate against the elastic force of the spring clamp 312, the bull horn plate 311 rotates to fall off from the limiting opening 302a and retracts into the rectangular shell 303, at this time, the limiting opening 302a releases the constraint on the trigger mechanism 310, at this time, the elastic potential energy of the compression spring one 308 is gradually released and pushes the wing plate 305 to move towards the roller 223, the rectangular shell 303 slides towards the roller 223 synchronously along the guide rail 302, the rectangular shell 303 drives the cylindrical shell 304 to move synchronously, the cylindrical shell 304 pushes the fused fuse tube assembly out of the guide hole 240 out of the roller 223 and leads out of the box body from the guide tube 241, finally, the user manually pulls the handle 307 to slide the rectangular shell 303 along the guide rail 302 to reset against the elastic force of the first compression spring 308, and the limiting opening 302a is restored to restrain the trigger member 310.

In the manual reset process of the ejection mechanism 300, the wing plate 305 drives the rotation driving mechanism 400 to move synchronously and the rotation driving mechanism 400 collects the elastic potential energy continuously, when the wing plate 305 resets, the rotation driving mechanism 400 releases the collected elastic potential energy and drives the sleeve 222 to rotate by forty-five degrees, the sleeve 222 drives the roller 223 to rotate synchronously and enables the adjacent fuse tube assemblies to rotate by forty-five degrees to abut against the input contact 215 and the output contact 216, the abutting mechanism 210 is conducted, and the circuit returns to normal operation.

The rotary driving mechanism 400 comprises a third vertical plate 401 fixedly connected with one end of the second vertical plate 401, which is far away from the guide rail 302, a second guide rod 402 is arranged on a fixed frame of the third vertical plate 401, the second guide rod 402 is provided with two guide rods 403 which are vertically and symmetrically arranged, a sliding block 403 is sleeved on the second guide rod 402, the sliding block 403 is matched with the second guide rod 402 and forms sliding guide fit along the length direction parallel to the bottom plate 110, a second compression spring 404 is sleeved outside the second guide rod 402, one end of the second compression spring 404 is abutted against the sliding block 403, the other end of the second compression spring is abutted against the second vertical plate 301, the elastic force of the second compression spring 404 is always directed to the sliding block 403 by the second vertical plate 301, a reciprocating rod 405 parallel to the length direction of the bottom plate 110 is fixedly arranged on one end face of the sliding block 403, which is far away from the second vertical plate 301, the reciprocating rod 405 extends into, eight rotary guide grooves 222a are arranged in a circumferential array in which the sleeves 222 are located, one end of each rotary guide groove 222a close to the docking tray 212 is a tail end, one end far away from the docking tray 212 is a head end, the head end and the tail end of each rotary guide groove 222a are aligned along an axial direction parallel to the sleeves 222, and the head and tail ends of two adjacent rotation guide slots 222a are provided with transition slots 222b for communicating the two, the depth of the transition slot 222b is less than that of the rotation guide slot 222a, a transition inclined surface is arranged between the transition slot 222b and the tail end of one rotation guide slot 222a, the extending end of the reciprocating rod 405 is movably provided with a rotary guide block 406a, the rotary guide block 406a is matched with the rotary guide slot 222a and forms sliding guide fit along the guide direction thereof, and the rotation guide block 406a is located at the rear end of the rotation guide groove 222a in the initial state.

Specifically, in order to make the rotation guide block 406a always fit into the rotation guide grooves 222a and make the rotation guide block 406a slide from the tail end of one of the rotation guide grooves 222a to the head end of the adjacent rotation guide groove 222a through the transition groove 222b, the rotation guide block 406a is floatingly disposed at the extending end of the reciprocating rod 405 along the radial direction of the sleeve 222, the extending end of the reciprocating rod 405 is further provided with a spring piece 406b, the spring piece 406b is connected with the rotation guide block 406 and the elastic force of the spring piece 406b always pushes the rotation guide block 406a to fit to the groove bottom of the rotation guide groove 222a, the tail end of one of the rotation guide grooves 222a slides to the head end of the adjacent rotation guide groove 222a through the rotation guide block 406a through the transition groove 222b, and then the rotation guide block 406a slides from the head end of the adjacent rotation guide groove 222a to the tail end, so that the sleeve 222 rotates, the replacement of the fuse assembly is realized.

As can be seen from the above description, when the driving sleeve 222 rotates forty-five degrees, it is necessary to make the rotary guide block 406a reciprocate for a period, that is, it is necessary to make the slide block 403 reciprocate for a period along the second guide rod 402, for this reason, the slide block 403 is provided with a blocking member near one side of the wing plate 305 and the blocking member is used for receiving the motive force generated by the return motion of the wing plate 305, the blocking member includes a first mounting groove 411 opened on one side of the slide block 403 near the wing plate 305, the first mounting groove 411 penetrates in the direction parallel to the length direction of the base plate 110, the first mounting groove 411 is rotatably provided with a stopper 412 arranged toward the outside of the opening thereof and the axial direction of the rotary shaft is perpendicular to the plane of the base plate 110, the rotary shaft of the stopper 412 is arranged near the bottom of the first mounting groove 411, in the initial state, the stopper 412 is arranged in the direction, in order to enable the return motion of the wing plate 305 to enable the sliding block 403 to slide close to the second upright plate 301 through the stop 412, the sliding block 403 is provided with a second vertically arranged installation groove 413, the upper end of the second installation groove 413 penetrates through the first installation groove 411, the lower end of the second installation groove 413 penetrates through the bottom of the sliding block 403, a constraint block 414 is arranged in the second installation groove 413 and forms sliding guiding fit along the vertical direction, the constraint block 414 extends into the first installation groove 411 and is in contact with one end face, close to the second upright plate 301, of the stop block 412, the constraint block 414 is used for limiting the stop block 412 to rotate around a rotation shaft of the second upright plate 301, the constraint block 414 is installed, a bottom support block 416 is fixedly arranged at the bottom of the sliding block 403, a top support spring 415 is arranged between the bottom support block 416 and the constraint block 414, one end of the top support spring 415 is fixedly connected with the bottom support block 416, the, the limit block 414 limits the stop 412 to rotate close to the second vertical plate 301, and the wing 305 abuts against the stop 412 in the resetting process and drives the stop 412 to move close to the second vertical plate 301, so that the slide block 403 is driven to slide along the second guide rod 402 close to the second vertical plate 301.

Specifically, when the sliding block 403 slides to contact with the second upright plate 301, the constraint on the sliding block 403 needs to be released, and the sliding block is automatically reset under the elastic force of the second compression spring 404, so as to complete a cycle of operation, and exchange of the fuse assembly is realized, for this reason, a trigger inclined plane 417 is arranged at the middle position of the constraint block 414, the distance between the trigger inclined plane 417 and the bottom plate 110 is gradually reduced from the first upright plate 211 to the second upright plate 301, an open slot 418 which is communicated with the second installation slot 413 and is aligned with the trigger inclined plane 417 is formed on one end surface of the sliding block 403 close to the second upright plate 301, a trigger inserting rod 419 which is aligned with the open slot 418 is arranged on one end surface of the second upright plate 301 close to the sliding block 403, the constraint block 414 is forced to slide downwards along the second installation slot 413 against the elastic force of the top support spring 415 by the extrusion of the trigger inserting rod 419 to the trigger inclined plane, the stopper 412 rotates around the rotating shaft close to the second upright plate 301 and is separated from the wing 305, and the second compression spring 404 drives the sliding block 403 to slide and reset away from the second upright plate 301.

More specifically, in the initial state, the wing 305 is located between the second upright plate 301 and the stopper 412, and after the ejection mechanism 300 is activated, the wing 305 is located between the roller 223 and the stopper 412, during this process, the wing 305 sweeps across the inclined surface of the stopper 412 and forces the stopper 412 to rotate around its rotation axis near the roller 223, in order to make the wing 305 move to the reset position so as to touch the stopper 412, the stopper 412 needs to rotate to the reset position to be attached to the restraint block 414, for this reason, the top of the restraint block 414 near one end surface of the stopper 412 is provided with a reset magnetic stripe 414a, and the stopper 412 is made of ferromagnetic material.

More specifically, after the slider 403 slides along the second guide bar 402 away from the second vertical plate 301 to reset, in order to reset the stopper 412, which is rotated close to the second vertical plate 301, to be parallel to the width direction of the bottom plate 110, the top of the constraining block 414 is provided with a reset inclined surface 414b, a distance between the reset inclined surface 414b and the bottom plate 110 gradually increases from the first vertical plate 211 to the second vertical plate 301, during the resetting process, the triggering inserted bar 419 releases the pressing on the triggering inclined surface 417, the elastic force of the top bracing spring 415 pushes the constraining block 414 to vertically slide upward to reset, the reset inclined surface 414b pushes the bottom surface of the stopper 412, which is in contact with the reset inclined surface 414b, and the stopper 412 is forced to rotate to reset to be parallel to the width direction of the bottom plate 110.

The rotation driving mechanism 400 is embodied in that, during the operation, the first compression spring 308 is triggered to drive the wing 305 to move close to the roller 223, the wing 305 sweeps the stopper 412 and make the stopper 412 rotate close to the roller 223, then the magnetic force of the reset magnetic stripe 414a drives the stopper 412 to rotate and reset parallel to the width direction of the bottom plate 110, when the user manually pulls the handle 307 to overcome the elastic force of the first compression spring 308 to reset the wing 305 close to the second standing plate 301, the wing 305 drives the stopper 412 to move close to the second standing plate 301, the stopper 412 drives the slider 403 to synchronously slide close to the second standing plate 301, during the process, the slider 403 drives the rotation triggering block 406a to slide from the tail end of the current rotation guiding groove 222a to the head end of the adjacent rotation guiding groove 222a through the transition groove 222b, then, when the trigger inserted rod 419 presses the trigger inclined plane 417 and releases the constraint block 414 from rotating the constraint block 412, the stop 412 is separated from the wing plate 305, the elastic force of the second compression spring 404 is released to push the sliding block 403 to slide away from the second vertical plate 301 for resetting, in the process, the sliding block 403 drives the rotary trigger block 406a to slide from the head end of the adjacent rotary guide slot 222a to the tail end thereof, the sleeve 222 is driven to rotate by forty-five degrees, the fuse assembly is butted with the butting mechanism 210, the butting mechanism 210 is in a conducting state, and the circuit returns to normal operation.

Claims

1. Circuit fusing protector, its characterized in that: the rotary safety device comprises a rectangular bottom plate and a shell which are arranged in a clamping manner, the bottom plate and the shell form a box body structure, a butt joint mechanism and a rotary safety mechanism which are fixedly connected with the bottom plate are arranged in the box body, the input end and the output end of the butt joint mechanism are mutually disconnected, the rotary safety mechanism is connected between the input end of the butt joint mechanism and the output end of the butt joint mechanism in series, the whole formed by the butt joint mechanism and the rotary safety mechanism is connected on a live wire in series, the rotary safety mechanism comprises a roller, the axis of the roller is parallel to the length direction of the bottom plate, a safety pipe assembly is movably embedded in the roller and is provided with a plurality of safety pipe assemblies which are arranged along the circumference array where the roller is located, one end;

the bottom plate is also provided with an ejection mechanism which is used for automatically triggering and automatically pushing the fused fuse assembly out of the roller, and the bottom plate is also provided with a rotary driving mechanism which is used for driving the roller to rotate;

the roller is provided with a first mounting hole which is parallel to the axial direction of the roller and penetrates through the roller, the first mounting holes are provided with a plurality of first mounting holes which are arranged in an array mode along the circumferential direction of the roller, the first mounting holes are eight, the fuse tube assemblies and the first mounting holes are in one-to-one correspondence, and the fuse tube assemblies are coaxially and slidably embedded in the first mounting holes.

2. A circuit fuse protector as defined in claim 1, wherein: the roller is provided with a second mounting hole which is parallel to the axial direction of the roller and penetrates through the roller, the second mounting hole is provided with a plurality of first mounting holes which are matched with the first mounting holes one by one, the first mounting holes and the second mounting holes are alternately arranged, the first mounting holes and the first annular grooves are oppositely arranged, a first communication groove which is communicated with the first mounting hole and the second mounting hole is arranged on the end surface of the roller, which is far away from the first butt joint disc, a second communication groove which is communicated with the first mounting hole is arranged on the end surface of the roller, which is close to the first butt joint disc, the second communication groove and the second annular groove are oppositely arranged, a first lantern ring which is fixedly embedded on the inner wall of the first mounting hole is movably sleeved at one end of the fuse tube assembly, a first slide bar which is parallel to the axial direction of the butt joint disc and extends to abut against the groove bottom of the second annular, and a second sliding rod extending to abut against the bottom of the first annular groove is fixedly arranged in the second mounting hole, the second lantern ring is electrically connected with the second sliding rod, the connecting piece is positioned in the first communicating groove, in an initial state, the first sliding rod connected with one end of a fuse assembly abuts against and abuts against the input contact, and the second sliding rod connected with the other end of the fuse assembly abuts against and abuts against the output contact.

3. A circuit fuse protector as defined in claim 2, wherein: the fuse tube assembly comprises an insulating tube body with openings at two ends, one end of the tube body close to the butt joint disc is fixedly sleeved with a first conductive end cover matched with the tube body, one end of the tube body far away from the butt joint disc is fixedly sleeved with a second conductive end cover matched with the tube body, the first conductive end cover and the second conductive end cover are of a cylinder structure with an opening at one end, the first lantern ring is movably sleeved outside the first conductive end cover, the second lantern ring is movably sleeved outside the second conductive end cover, the second conductive end cover is internally and coaxially provided with a conductive disc and is mutually contacted with the conductive disc, the conductive disc is matched with the second conductive end cover and forms sliding guide fit along the axial direction of the conductive disc, the bottom of the conductive disc and the bottom of the second conductive end cover are arranged at intervals in an initial state, fuses for connecting the first conductive end cover and the conductive disc are arranged in front of, a separation spring is arranged outside the fuse, one end of the separation spring is abutted against one of the insulating gaskets, the other end of the separation spring is abutted against the other insulating gasket, and the elastic force of the separation spring always pushes the two insulating gaskets to move away from each other;

4. A circuit fuse protector as defined in claim 3, wherein: the ejection mechanism comprises a second vertical plate arranged at the other end of the bottom plate along the length direction, the second vertical plate is arranged along the width direction of the bottom plate, guide rails parallel to the length direction of the bottom plate are arranged between the second vertical plate and the roller, the guide rails are provided with two guide rails which are vertically and symmetrically arranged along the axis direction of the guide-out hole, a rectangular shell and a cylindrical shell which are fixedly connected into a whole are arranged between the two guide rails, the rectangular shell is arranged close to the second vertical plate, the cylindrical shell is arranged close to the roller, the cylindrical shell is fixedly connected with one side surface of the rectangular shell, the upper end and the lower end of the rectangular shell are both positioned in the guide rails and can slide along the length direction parallel to the bottom plate, the rectangular shell is attached to the second vertical plate in an initial state, the cylindrical shell and the guide-out hole are coaxially arranged, the diameter of the cylindrical shell is smaller than;

the surface of the rectangular shell is provided with wing plates which are arranged in the direction parallel to the width direction of the bottom plate, the wing plates are provided with two guide rods which are symmetrically arranged in the direction parallel to the length direction of the bottom plate, a first guide rod which is parallel to the length direction of the bottom plate is arranged between the wing plates and a second vertical plate, one end of the first guide rod is fixedly connected with the wing plates, the other end of the first guide rod penetrates through the second vertical plate and extends outwards to the outside of the shell, the first guide rod and the second vertical plate form sliding guide fit in the direction parallel to the length direction of the bottom plate, a handle is arranged between one ends of the first guide rods, which extend to the outside of the shell, a first compression spring is movably sleeved outside the first guide rod, one end of the first compression spring is abutted against the wing plates, the other end of the first compression spring is abutted against the, and a limiting opening is formed in the guide rail and is arranged close to the second vertical plate, and the limiting opening is used for limiting and constraining the trigger component in the initial state.

5. A circuit fuse protector as defined in claim 4, in which: the trigger member comprises a horn plate which is rotatably arranged on the inner wall of the rectangular shell, the axial direction of a rotating shaft formed by the rotating connection part of the horn plate and the rectangular shell is parallel to the width direction of the bottom plate, a spring clip which is rotatably arranged on the inner wall of the rectangular shell, the axial direction of the rotating shaft formed by the rotating connection part of the spring clip and the inner wall of the rectangular shell is parallel to the width direction of the bottom plate, the horn plates are arranged in a vertical symmetrical mode, one ends, close to each other, of the horn plates are obliquely arranged towards the roller, the end parts, inclined towards the roller, of the horn plates are oblique ends, the spring clips are provided with two spring clips which are in one-to-one correspondence with the horn plates, the trigger member further comprises a trigger rod which is movably arranged in the cylindrical shell, the trigger rod is matched with the cylindrical shell and forms sliding guide fit along the length direction parallel to the bottom plate, one end of, trigger bar one end extends to in the rectangle shell and the fixed outside that is provided with trigger block, other end and outwards extends to the cylindricality shell of this end, triggers one side that the block is located ox angle board and trigger block and the slope end of ox angle board contradict each other, the spring card is located the opposite side of ox angle board and the spring card contradicts each other with the slope end of ox angle board, the elasticity of spring card promotes ox angle board all the time and is close to trigger block and rotate.

6. A circuit fuse protector as defined in claim 5, in which: the rotary driving mechanism comprises a third vertical plate fixedly connected with one end, away from the guide rail, of the second vertical plate, a second guide rod is arranged on a fixing frame of the third vertical plate, the two guide rods are arranged symmetrically up and down, a sliding block is sleeved on the second guide rod, the sliding block is matched with the second guide rod and forms sliding guide fit along the length direction parallel to the bottom plate, a second compression spring is sleeved outside the second guide rod, one end of the second compression spring is abutted against the sliding block, the other end of the second compression spring is abutted against the second vertical plate, the elastic force of the second compression spring is always directed to the sliding block by the second vertical plate, a reciprocating rod parallel to the length direction of the bottom plate is fixedly arranged on one end face, away from the second vertical plate, of the sliding block and extends into a gap H, rotary guide grooves obliquely arranged are formed in the outer circumferential surface of the sleeve, eight rotary guide grooves are arranged in, The end and the head end far away from the butt joint disc, the head and tail ends of two adjacent rotary guide grooves are aligned along the axial direction parallel to the sleeve, transition grooves for communicating the two rotary guide grooves are formed in the head and tail ends of the two adjacent rotary guide grooves, the groove depth of each transition groove is smaller than that of each rotary guide groove, a transition inclined plane is arranged between each transition groove and the tail end of one rotary guide groove, a rotary guide block is movably arranged at the extending end of the reciprocating rod, the rotary guide block is matched with the rotary guide grooves and forms sliding guide fit along the guide direction of the rotary guide grooves, and the rotary guide block is positioned at the tail end of the rotary guide groove in the initial state;

the slide block is provided with a blocking component close to one side face of the wing plate and used for receiving motive power generated by the restoration motion of the wing plate, the blocking component comprises a first mounting groove arranged on one side face of the slide block close to the wing plate, the first mounting groove penetrates through the length direction of the base plate in parallel, a stop block arranged towards the outside of an opening of the first mounting groove is rotatably arranged in the first mounting groove, the axial direction of a rotating shaft formed by the rotary joint of the stop block and the mounting groove is vertical to the plane of the base plate, the rotating shaft of the stop block is arranged close to the bottom of the first mounting groove, the stop block is arranged in the width direction of the base plate in an initial state in parallel, the end, deviating from the rotating shaft, of the stop block is obliquely arranged and is close to a second upright plate, the slide block is provided with a second mounting groove which is vertically arranged, the upper end of, the constraint block extends into the first mounting groove and is in contact with one end face, close to the second vertical plate, of the stop block, the constraint block is used for limiting the stop block to rotate close to the second vertical plate around a rotating shaft of the stop block, a supporting bottom block is fixedly arranged at the bottom of the sliding block, a top bracing spring is arranged between the supporting bottom block and the constraint block, one end of the top bracing spring is fixedly connected with the supporting bottom block, the other end of the top bracing spring is fixedly connected with the constraint block, and the elastic force of the top bracing spring is always limited by the orientation.

7. A circuit fuse protector as defined in claim 6, in which: the middle position of the restraint block is provided with a trigger inclined plane, the distance between the trigger inclined plane and the bottom plate is gradually reduced from the first vertical plate to the second vertical plate, an open groove communicated with the second mounting groove and aligned with the trigger inclined plane is formed in the end face, close to the second vertical plate, of the sliding block, a trigger inserting rod aligned with the open groove is arranged on the end face, close to the sliding block, of the second vertical plate, the restraint block is forced to slide downwards along the second mounting groove under the action of elasticity of a jacking spring through extrusion of the trigger inserting rod on the trigger inclined plane, the restraint block releases rotation restraint on the stop block, the stop block rotates around a rotating shaft of the stop block, close to the second vertical plate and is separated from a wing plate, and the;