CN110071025A

CN110071025A - Intelligent circuit fuse protector

Info

Publication number: CN110071025A
Application number: CN201910377362.5A
Authority: CN
Inventors: 梁根如
Original assignee: Individual
Current assignee: Xi'an Steady Fuse Co ltd
Priority date: 2019-05-04
Filing date: 2019-05-04
Publication date: 2019-07-30
Anticipated expiration: 2039-05-04
Also published as: CN110071025B

Abstract

The present invention provides intelligent circuit fuse protectors, shell including being in rectangular case structure, protective tube is installed in shell, mouth substituting device, trigger pushing-unloading device, the protective tube is stored in mouth substituting device, and protective tube is divided into the work insurance pipe connecting with circuit conductive, substitute protective tube for being replaced after the fusing of work insurance pipe, and protective tube of substituting is provided with several groups, the triggering pushing-unloading device is used to be pushed out shell after the fusing of work insurance pipe, substitute protective tube is pushed to former work insurance pipe position after being used to fuse and release in work insurance pipe shell and becomes new work insurance pipe by the mouth substituting device.

Description

Intelligent circuit fuse protector

Technical field

The present invention relates to electrical equipment technical fields, and in particular to a kind of fuse for being conveniently replaceable protective tube.

Background technique

Fuse refers to when electric current is more than specified value, makes melt, i.e. blown fuse with the heat that itself is generated, thus A kind of current protector of disconnecting circuit, fuse are widely used in high and low voltage electric distribution system and control system and electrical equipment In, it is the current used fuse using one of most common protection device as the protector of short circuit and overcurrent, with A piece fuse is arranged in most commonly seen in insulating sleeve, and this fuse structure is simple, if drawback is that melt blows needs When replacement, power failure is first handled, then replacement operation is carried out by the place that service personnel's climbing to installing is once insured, it is more troublesome And it replaces not in time, substantially prolongs power off time, in addition to this, fuse or melt are replaced in the prior art When, it has not been convenient to installing and dismounting operates comparatively laborious, therefore the present inventor designs a kind of melting for rapid and convenient replacement protective tube Disconnected device.

Summary of the invention

To solve the deficiencies in the prior art, the object of the present invention is to provide a kind of fuse for being conveniently replaceable protective tube, when After protective tube is blown, triggering pushing-unloading device is triggered and the protective tube after fusing is pushed out shell automatically, hereafter only needs Being manually retracted by triggering pushing-unloading device and being located at the handle of hull outside can make mouth substituting device automatically push away spare protective tube It send to former protective tube present position, the replacement process of entire protective tube is without auxiliary instrument, and replacement is simple, quickly just It is prompt.

To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.

Intelligent circuit fuse protector, the shell including being in rectangular case structure are equipped with protective tube, automatic in shell Alternative, triggering pushing-unloading device, the protective tube is stored in mouth substituting device, and protective tube is divided into and circuit conductive The work insurance pipe of connection, the substitute protective tube for being replaced after the fusing of work insurance pipe, and protective tube of substituting is set Several groups are equipped with, the triggering pushing-unloading device is used to be pushed out shell after the fusing of work insurance pipe, and described is automatic Alternative, which is used to fuse and release in work insurance pipe after shell, pushes to former work insurance pipe institute in place for substitute protective tube It sets place and becomes new work insurance pipe；

The protective tube includes glass tube, frizzen, transition disc, melt, compressed spring, and glass tube is the circle of both ends open The coaxial Matching installation in the open end of cylinder and glass tube has conductive tube head, and conductive tube head is circle open at one end, closed at one end The open end of glass tube is coaxially fixed in cylinder and conductive tube head open end, and the conductive tube head is correspondingly arranged on two groups and divides Not Wei contact tube is first, conductive tube head two, the first closed end of contact tube coaxially offers avoid holes；

The transition disc be coaxially installed on contact tube it is first in and constitute slide-and-guide cooperation, and transition disc be conductive material It is made, the frizzen is coaxially fixed on the end face that transition disc deviates from glass tube, and frizzen is made of insulating materials, described Melt coaxial arrangement in glass tube, one end of melt is fixedly connected with transition disc, the other end and conductive two bottom of chamber of tube head are consolidated Fixed connection；

The compressed spring is set in glass tube in compressive state and its coaxial sleeve, and one end of compressed spring and transition disc connect Connect, the other end connect with the bottom of chamber of conductive tube head two, the elastic force of compressed spring makes frizzen do separate contact tube by transition disc First two movement simultaneously finally makes the free end of frizzen pass through avoid holes and is located at the first outside of contact tube.

Further improvement as the technical program.

Insulation sleeve is additionally provided in the protective tube, insulation sleeve is annular nested structure, and insulation sleeve is provided with two groups and one Group insulation sleeve is coaxially fixed on the chamber that transition disc is coaxially fixed on conductive tube head two away from the end face of frizzen, another group of insulation sleeve Bottom, the both ends of the compressed spring are connect with two groups of insulation sleeves respectively.

Further improvement as the technical program.

The mouth substituting device includes replacement mechanism, clamping device, and clamping device is for clamping work insurance pipe, institute The replacement mechanism stated is used to fuse and release in work insurance pipe after shell the protective tube that will substitute and pushes to former work insurance pipe institute At position；

The clamping device includes securing bracket, clamps guide rod, grip block, conduct piece, and securing bracket is fixed in shell, is pressed from both sides Big face of the channeling direction perpendicular to shell of guide rod is held, and clamps guide rod and is fixed on securing bracket；

The grip block is the rectangular panel body structure parallel to the large face in the big face of shell, offers sleeve joint hole and clamping on grip block Block outside clamping guide rod and constitutes slide-and-guide cooperation by sleeve joint hole pivot bush unit, and grip block is along the guidance side of clamping guide rod To being provided with two groups；

Two groups of grip blocks are provided with semi-circular groove on side close to each other, and two groups of semi-circular grooves collectively form folder The clamp area of mechanism is held, and the clamp area is in borehole structure, the work insurance pipe coaxially deposits in the folder of clamping device Area is held, the part that the conductive tube head two of work insurance pipe is right against on the shell offers discharge port；

Two groups of grip blocks are additionally provided with a quarter circle slot, and a quarter circle slot on side close to each other It is through to the lower end surface of grip block and it is located at immediately below clamp area, two groups of a quarter circle slots collectively form clamping device Boot section, and the boot section is in semicircle pore structure, and one group in the described several groups replacement protective tube is coaxially placed in guidance In area, residue replacement protective tube is successively deposited in replacement mechanism；

The portion of external that the clamping guide rod is located at grip block two sides is arranged with clamp springs, and the bullet of two groups of clamp springs Power makes two groups of grip blocks do movement close to each other, and the axial array of the clamping guide rod and clamp springs along clamp area has Several groups；

The cavity wall in the gripper mechanism grips area offers the jack through grip block along clamping guide rod channeling direction thickness；

The conduct piece, which is that conductive material is made and it is used for, makes to be coaxially installed on work insurance pipe and circuit in clamp area It is conductively connected, conduct piece includes conductive sheet, connector lug, and conductive sheet is arc chip architecture, and conductor strip coaxial arrangement is in clamping machine In the clamp area of structure, one end of connector lug is fixedly connected with conductor strip, the other end passes through jack and is located at gripper mechanism grips area The external and end is power connection end；

The conduct piece is provided with two groups and respectively conduct piece one, conduct piece two, the conductive sheet of conduct piece one are right against work Make protective tube contact tube is first and the two contacts, the conductive sheet of conduct piece two be right against the conductive tube head two of work insurance pipe and The two contact, described circuit lines one end is connect with the connector lug power connection end of conduct piece one, other end series/parallel several groups are electric It is connect after device equipment with the connector lug power connection end of conduct piece two and constitutes conductive closed circuit；

The motion state of the clamping device can be divided into the clamp position of clamping work insurance pipe, revocation to work insurance pipe clamp The softened state held, the original state of clamping device are clamp position.

Further improvement as the technical program.

The replacement mechanism is set to the underface of clamping device boot section, and replacement mechanism is intracorporal including being fixed on shell Fixed bracket, the magazine for storing substitute protective tube, the replacement actuator for pushing substitute protective tube；

The magazine is the frame structure for being provided with storing area, and magazine is detachable is installed on fixed bracket；

The substitute actuator includes replacement guide rod, replacement plate, replacement spring, and the channeling direction for replacing guide rod is parallel to shell Big face is simultaneously axial perpendicular to clamping guide rod clamp area, and replaces guide rod and be fixed on magazine, and substitute guide rod is provided with two groups simultaneously Magazine storing area is located at along the side of gripper mechanism grips area axial direction；

The replacement plate is set in the storing area of magazine and its big face perpendicular to the channeling direction of replacement guide rod, replaces plate Side be provided with socket protrusion and replacement plate is by being socketed raised pivot bush unit outside replacement guide rod and structure between the two Cooperate at slide-and-guide, the socket protrusion is correspondingly arranged on two groups；

The replacement spring in compressive state and its be sheathed on replacement guide rod outside, replace spring one end and magazine bottom It contradicts, the other end and the socket protrusion conflict being set on replacement plate, the elastic force for replacing spring draw replacement plate along replacement guide rod Lead the movement that close clamping device is done in direction；

The replacement several groups substitute protective tube within the organization of depositing in is set in turn in storing along replacement guide rod channeling direction In the storing area of casket, and the substitute protective tube of bottom and replacement plate upper end face contact.

Further improvement as the technical program.

The triggering pushing-unloading device is set to the side that clamping device deviates from discharge port, and triggering pushing-unloading device includes limit Mechanism, Push-unloading scraper, position-limit mechanism are used to limit the movement that Push-unloading scraper does close clamping device, and Push-unloading scraper will be for that will fuse Work insurance pipe afterwards releases shell；

The position-limit mechanism includes connecting bracket, limit plate, and connecting bracket is fixed in shell, limit plate it is parallel to the large face in The big face of shell and limit plate be fixed on connecting bracket towards offer on the side of clamping device and limit plate close to its with The limit hole of connecting bracket fixed point, the limit plate are provided with two groups along the channeling direction of clamping guide rod.

Further improvement as the technical program.

The Push-unloading scraper includes shirking shell, the push rod for being triggered by work insurance pipe frizzen, being used for and limit Position hole limits the locating part of Push-unloading scraper movement with merging, for driving Push-unloading scraper that work insurance pipe is released shell or is made What user was manually retracted by shirks actuator；

The actuator of shirking includes pull rod, shirks spring, and the extending direction of pull rod is parallel to the axis in gripper mechanism grips area To pull rod is movably installed in connecting bracket and constitutes slide-and-guide cooperation, and one end of pull rod is located between two groups of limit plates Region, the other end be located at connecting bracket away from clamping device side and extend out to hull outside and the end matching be provided with For the handle of user's manual operation；

The shell of shirking is set between two groups of limit plates, is shirked shell and is made of two parts and is respectively push section, limit Position section, limit section is the rectangular case structure of both ends open and the open end of limit section is right against limit hole, limits the outside of section It is provided with gearing protrusion and interlocks protrusion and be fixedly connected with pull rod, interlock protrusion and be provided with two groups and be respectively to be set to limit The upper gearing protrusion of Duan Shangfang, the lower gearing protrusion being set to below limit section, the pull rod are correspondingly arranged on two groups；

The spring pocket of shirking is located at the portion of external interlocked between protrusion and connecting bracket set on pull rod, shirks the bullet of spring Elastic force shirks the movement that shell integrally does close clamping device, shirks spring and is correspondingly arranged on two groups.

The push section is both ends open and the circular tube structure coaxially arranged with gripper mechanism grips area, and pushes Section is fixed on limit side of the section towards clamping device, limits the slide opening being also provided in section for connecting with push section；

The described push rod coaxial arrangement is in the push section for shirk shell and constituting slide-and-guide cooperation, and one end of push rod is located at Push section and gripper mechanism grips area between, the other end pass through slide opening and be located at limit section in and the end be fixed with pushing block, push away Block size is greater than slide opening size；

The locating part is set in the limit section of Push-unloading scraper and is located at the side that pushing block deviates from clamping device, locating part packet Include gag lever post, elastic piece；

The gag lever post is hingedly set in limit section and hinged shaft core line is parallel to the channeling direction of replacement guide rod and cuts with scissors Contact is located at the middle position of gag lever post, and one end of gag lever post is contacted with pushing block, the other end is positive stop end and the end passes through Limit section is open and is located in limit hole；

The elastic piece is set to the side that gag lever post deviates from pushing block, and elastic piece is hingedly set in limit section and hinged central spindle Line is parallel to the channeling direction of replacement guide rod and hinge joint is located at the middle position of elastic piece, one end of elastic piece and limit Position bar contradicts, the other end and the cavity wall of limit section contradict, and the elastic force of elastic piece does the positive stop end of gag lever post far from clamping machine The rotation of structure is simultaneously finally extend out in limit hole；

The locating part is correspondingly arranged on two groups and is axially symmetric about push rod；

The motion state of the Push-unloading scraper, which can be divided into gag lever post positive stop end and be located in limit hole and be limited mechanism limitation, to be done It is retracted to and shirks in shell and position-limit mechanism revocation is to shirking close to the limit state of clamping device movement, gag lever post positive stop end State is shirked in mechanism limitation, and the original state of Push-unloading scraper is limit state.

Further improvement as the technical program.

The triggering pushing-unloading device further includes partition rod, and the extending direction of the partition rod is parallel to clamping device folder The axial direction in area is held, and partition rod is fixed on and is set to the upper gearing protrusion for shirking upper shell face towards the side of clamping device On, the free end of partition rod is provided with separation inclined-plane along the two sides of clamping guide rod, and two separate the distance between inclined-plane edge Partition rod extending direction is simultaneously incremented by by interlocking raised direction in the direction of its free end, and two groups of grip blocks are close to each other The lead-in chamfered to match with separation inclined-plane is provided on side, and the free end of partition rod is located between two groups of lead-in chamfereds；

The part that the shell is right against replacement mechanism offers through-hole, and is provided in through-hole transparent made of transparent material Window.

Further improvement as the technical program.

Described two groups are provided with induction closure switch between conduct piece, circuit lines, induction closure switch are for protecting Make closing of circuit when disconnecting circuit in dangerous pipe replacement process/after protective tube replacement；

The induction closure switch include conductive contact mechanism, conducting wire, and conductive contact mechanism is shirked for incuding triggering The state of device simultaneously determines whether circuit disconnects, and conducting wire is for conductive contact mechanism, two groups between conduct piece, circuit lines Conductive connection；

The conductive contact mechanism is set in shell, and conductive contact mechanism includes mounting bracket, stationary contact component, movable contact Component, mounting bracket are fixed in shell, and two groups of support plates are fixed in mounting bracket, and two groups of support plates are respectively close to certainly The support plate one of dynamic alternative, the support plate two for deviating from mouth substituting device side positioned at support plate one；

The stationary contact component includes buffer bar, buffer spring, and the extending direction of the buffer bar is parallel to clamping device The axial direction and buffer bar of clamp area are movably installed in support plate two and constitute slide-and-guide cooperation, and one end position of buffer bar Between two groups of support plates and the end matching be provided with stationary contact, the other end be located at support plate two deviate from support plate one side and End matching is provided with connecting terminal, and the buffer spring is sheathed on buffer bar outside the part between two groups of support plates Portion, and the elastic force of buffer spring makes buffer bar do the movement close to support plate one, the stationary contact component draws along clamping guide rod It leads direction and is provided with two groups；

The movable contact component includes guide rod, guide plate, cut spring, interlock plate, and the channeling direction of guide rod is parallel to The extending direction of buffer bar, and guide rod is fixed between two groups of support plates, and guide rod is along the channeling direction of clamping guide rod It is provided with two groups；

Offer overlap aperture on the guide plate, guide plate by overlap aperture pivot bush unit outside guide rod and between the two It constitutes slide-and-guide cooperation and guide plate is located at stationary contact towards the side of support plate one, guide plate is towards the side of stationary contact Face is provided with the movable contact to match with stationary contact and movable contact is correspondingly arranged on two groups；

The cut spring is in compressive state, and cut spring is sheathed on portion of the guide rod between guide plate and support plate two Exceptionally portion, and the elastic force of cut spring makes guide plate do the movement close to support plate one, cut spring is correspondingly arranged on two groups；

The interlock plate is fixed on the top of guide plate, and the upper surface of interlock plate is provided with induction protrusion, incudes raised position In being set to the side shirked the lower gearing protrusion below shell and deviate from mouth substituting device, and it is raised with lower gearings to incude protrusion Contact；

The motion state of the conductive contact mechanism can be divided into the closed state of movable contact and stationary contact point contact, movable contact with it is quiet The off-state that contact disengages, the original state of conductive contact mechanism are closed state.

Further improvement as the technical program.

The conducting wire includes lug plate, conductor wire one, conductor wire two, conductor wire three, and one end of lug plate is located at Shell is interior, the other end extend out to hull outside, and lug plate is provided with two groups；

One end of the conductor wire one connect with one group of lug plate, the connector lug of the other end and conduct piece one connects, conductor wire Two one end is connect with the connector lug of conduct piece two, the other end is connect with the connecting terminal of one group of stationary contact component, conductor wire three One end connect with the connecting terminal of another group of stationary contact component, the other end is connect with another group of lug plate；

Described circuit lines one end connect with one group of lug plate, after other end series/parallel several groups electrical equipment with another group Lug plate connects and constitutes conductive closed circuit.

The beneficial effect of the present invention compared with prior art is, when protective tube is blown because of circuit overloads or short circuit Afterwards, triggering pushing-unloading device is triggered and the protective tube after fusing is pushed out shell automatically, and hereafter user replaces protective tube When, without dismantling shell, it need to be only manually retracted by the handle that triggering pushing-unloading device is located at hull outside, triggering pushing-unloading device is pulled While, mouth substituting device automatically pushes to spare protective tube at former protective tube present position, and entire protective tube is more Process is changed without auxiliary instrument, replaces simple, rapid and convenient, in addition to this, the setting for incuding closure switch makes protective tube Circuit disconnects in replacement process, only just re-closes circuit after protective tube replacement, connects so as to avoid circuit moment The case where leading to and protective tube caused to fuse again.

Detailed description of the invention

Fig. 1 is complete machine structure schematic diagram of the invention.

Fig. 2 is complete machine structure schematic diagram of the invention.

Fig. 3 is schematic diagram of internal structure of the invention.

Fig. 4 is schematic diagram of internal structure of the invention.

Fig. 5 is schematic diagram of internal structure of the invention.

Fig. 6 is schematic diagram of internal structure of the invention.

Fig. 7 is the cross-sectional view of protective tube of the invention.

Fig. 8 is the cross-sectional view after protective tube fusing of the invention.

Fig. 9 is the structural schematic diagram of mouth substituting device of the invention.

Figure 10 is the structural schematic diagram of replacement mechanism of the invention.

Figure 11 is the structural schematic diagram of clamping device of the invention.

Figure 12 is the clamp structure schematic diagram under clamp position of the invention.

Figure 13 is the clamp structure schematic diagram under softened state of the invention.

Figure 14 is the cooperation figure of grip block and conduct piece of the invention.

Figure 15 is the cooperation figure of triggering pushing-unloading device of the invention, induction closure switch, clamping device.

Figure 16 is the cooperation figure of triggering pushing-unloading device of the invention, induction closure switch, clamping device.

Figure 17 is the structural schematic diagram of triggering pushing-unloading device of the invention.

Figure 18 is the structural schematic diagram of position-limit mechanism of the invention.

Figure 19 is the cooperation figure of Push-unloading scraper and partition rod of the invention.

Figure 20 is that work insurance pipe of the invention cooperates figure with the Push-unloading scraper in limit state.

Figure 21 is work insurance pipe of the invention and is in the Push-unloading scraper cooperation figure for shirking state.

Figure 22 is the structural schematic diagram of induction closure switch of the invention.

Figure 23 is the structural schematic diagram of conductive contact mechanism of the invention.

Figure 24 is the structural schematic diagram of stationary contact component of the invention.

Figure 25 is the structural schematic diagram of movable contact component of the invention.

Figure 26 is the structural schematic diagram of conducting wire of the invention.

Specific embodiment

The present invention cooperates replacement protective tube to be advantageous in that using triggering pushing-unloading device and mouth substituting device, works as insurance After pipe is blown because of circuit overloads or short circuit, triggering pushing-unloading device is triggered and is automatically pushed out the protective tube after fusing Shell when hereafter user replaces protective tube, without dismantling shell, need to only be manually retracted by triggering pushing-unloading device and be located at hull outside Handle, for triggering pushing-unloading device while be pulled, spare protective tube is pushed to former protective tube automatically by mouth substituting device At present position, the replacement process of entire protective tube is without auxiliary instrument, and replacement is simple, in addition to this rapid and convenient is felt It answers the setting of closure switch to disconnect circuit in protective tube replacement process, only just closes circuit again after protective tube replacement The case where closing, causing protective tube to fuse again so as to avoid the connection of circuit moment.

Intelligent circuit fuse protector is equipped with insurance in shell 100 including the shell 100 in rectangular case structure Pipe 200, mouth substituting device 300, triggering pushing-unloading device 400, the protective tube 200 are stored in mouth substituting device 300, And protective tube 200 divide for connect with circuit conductive work insurance pipe, for work insurance pipe fusing after replaced replace Protective tube is mended, and protective tube of substituting is provided with several groups, the triggering pushing-unloading device 400 is used to fuse in work insurance pipe It is pushed out shell 100 afterwards, the mouth substituting device 300 is used for after work insurance pipe fuses and releases shell 100 Substitute protective tube is pushed into former work insurance pipe position and becomes new work insurance pipe.

When short circuit and make work insurance pipe fuse after, triggering pushing-unloading device 400 be triggered and push away work insurance pipe Shell 100 out, then user is manually retracted by triggering pushing-unloading device 400, and during retracting, mouth substituting device 300 automatically will Substitute protective tube pushes to former work insurance pipe position, and the substitute protective tube is connect with circuit conductive, i.e. the substitute Protective tube becomes new work insurance pipe, and so on, until user can protect this fusing after the fusing of all substitute protective tubes Shield device is dismantled and reapposes the new protective tube 200 of several groups.

The protective tube 200 includes glass tube 210, frizzen 240, transition disc 250, melt 260, compressed spring 270, Glass tube 210 is that the coaxial Matching installation in open end of the circular cylinder body and glass tube 210 of both ends open has conductive tube head, contact tube Head is the open end that glass tube 210 is coaxially fixed in circular cylinder body open at one end, closed at one end and conductive tube head open end, institute The conductive tube head stated is correspondingly arranged on two groups and respectively contact tube is first 220, conductive tube head 2 230, first 220 envelope of contact tube Closed end coaxially offers avoid holes.

The transition disc 250 is coaxially installed in contact tube first 220 and constitutes slide-and-guide cooperation, and transition disc 250 are made of conductive material, and the frizzen 240 is coaxially fixed on the end face that transition disc 250 deviates from glass tube 210, and touches Hair bar 240 is made of insulating materials, and the described coaxial arrangement of melt 260 is in glass tube 210, one end of melt 260 and transition Disk 250 is fixedly connected, the other end is fixedly connected with 2 230 bottom of chamber of conductive tube head.

The compressed spring 270 is set in glass tube 210 in compressive state and its coaxial sleeve, and the one of compressed spring 270 End is connect with transition disc 250, the other end is connect with the bottom of chamber of conductive tube head 2 230, and the elastic force of compressed spring 270 passes through transition disc 250 make frizzen 240 do the movement far from conductive tube head 2 230 and the free end of frizzen 240 are finally made to pass through avoid holes simultaneously Outside contact tube first 220.

When short circuit and make melt 260 fuse when, the elastic force of compressed spring 270 stretches out the free end of frizzen 240 To contact tube first 220, and triggering pushing-unloading device 400 is finally made to be triggered.

More optimize, when short-circuit and protective tube 200 is not blown circuit, due to making the material of compressed spring 270 Expect it is electrically conductive so that electric current can also be circulated by compressed spring 270 after melt 260 is blown, to make protective tube 200 Fail to achieve the purpose that protect circuit, in addition to this, when protective tube 200 works normally, compressed spring 270 can also make electric current point Stream, it is serious to will lead to short circuit, in order to solve this problem, it is additionally provided with insulation sleeve 280 in the protective tube 200, Insulation sleeve 280 is annular nested structure, and insulation sleeve 280 is provided with two groups and one group of insulation sleeve 280 is coaxially fixed on the back of transition disc 250 The bottom of chamber of conductive tube head 2 230, the compressed spring are coaxially fixed in end face, another group of insulation sleeve 280 from frizzen 240 270 both ends are connect with two groups of insulation sleeves 280 respectively；Completely cut off compressed spring 270 by insulation sleeve 280 to connect with two groups of conduction tube heads Touching, to solve the above problem.

The mouth substituting device 300 includes replacement mechanism 310, clamping device 320, and clamping device 320 is for clamping Work insurance pipe, the replacement mechanism 310 push away substitute protective tube after being used to fuse and release in work insurance pipe shell 100 It send to former work insurance pipe position.

The clamping device 320 includes securing bracket 321, clamping guide rod 322, grip block 323, conduct piece, fastening branch Frame 321 is fixed in shell 100, clamps big face of the channeling direction perpendicular to shell 100 of guide rod 322, and it is solid to clamp guide rod 322 Due on securing bracket 321.

The grip block 323 is the rectangular panel body structure parallel to the large face in the big face of shell 100, is opened up on grip block 323 There is sleeve joint hole and grip block 323 passes through sleeve joint hole pivot bush unit in 322 outside of clamping guide rod and constitutes slide-and-guide cooperation, clamping Block 323 is provided with two groups along the channeling direction of clamping guide rod 322.

Semi-circular groove is provided on two groups of grip blocks 323 side close to each other, and two groups of semi-circular grooves are total With the clamp area for constituting clamping device 320, and the clamp area is in borehole structure, and the work insurance pipe coaxially deposits in folder The clamp area of mechanism 320 is held, the part that the conductive tube head 2 230 of work insurance pipe is right against on the shell 100 offers Discharge port 110.

It is additionally provided with a quarter circle slot on two groups of grip blocks 323 side close to each other, and four/ One circular trough is through to the lower end surface of grip block 323 and it is located at immediately below clamp area, and two groups of a quarter circle slots are common The boot section of clamping device 320 is constituted, and the boot section is in semicircle pore structure, one group in the several groups replacement protective tube It is coaxially placed in boot section, residue replacement protective tube is successively deposited in replacement mechanism 310.

The portion of external that the clamping guide rod 322 is located at 323 two sides of grip block is arranged with clamp springs 324, and two The elastic force of group clamp springs 324 makes two groups of grip blocks 323 do movement close to each other, it is preferred that the clamping guide rod 322 Axial array with clamp springs 324 along clamp area has several groups.

The cavity wall of 320 clamp area of clamping device is offered through grip block 323 along clamping 322 channeling direction of guide rod The jack of thickness.

The conduct piece is that conductive material is made and it is used for make to be coaxially installed on work insurance pipe in clamp area with Circuit conductive connection, conduct piece includes conductive sheet 325, connector lug 326, and conductive sheet 325 is arc chip architecture, and conductor strip 325 It is coaxially disposed in the clamp area of clamping device 320, one end of connector lug 326 is fixedly connected with conductor strip 325, the other end passes through Jack and be located at 320 clamp area of clamping device outside and the end be power connection end.

The conduct piece is provided with two groups and respectively conduct piece one, conduct piece two, and the conductive sheet 325 of conduct piece one is just First for the contact tube of work insurance pipe 220 and the two contact, the conductive sheet 325 of conduct piece two is right against work insurance pipe Conductive tube head 2 230 and the two contact, described circuit lines one end connect with 326 power connection end of connector lug of conduct piece one, are another It is connect after the series/parallel several groups electrical equipment of one end with 326 power connection end of connector lug of conduct piece two and constitutes conductive closed circuit.

The motion state of the clamping device 320 can be divided into the clamp position of clamping work insurance pipe, revocation to work The softened state of protective tube clamping, the original state of clamping device 320 are clamp position.

The course of work of clamping device 320, specifically: when clamping device 320 is in clamp position, work insurance Guan Wei quilt Fusing, circuit is normal, after being blown work insurance pipe because of short circuit, 240 free end of frizzen of work insurance pipe It extend out to first 220 outside of contact tube and is contacted with triggering pushing-unloading device 400, triggering pushing-unloading device 400 is triggered and makes two groups Grip block 323 does the movement being located remotely from each other, i.e. clamping device 320 switches to softened state, then triggers pushing-unloading device 400 through unloading Work insurance pipe is released shell 100 by material mouth 110, and then, user is manually retracted by triggering pushing-unloading device 400, during retracting, Replacement mechanism 310 by the substitute protective tube being located in 320 boot section of clamping device push in 320 clamp area of clamping device and at The substitute protective tube for being located at the top for new work insurance pipe, while in remaining substitute protective tube pushes to clamping device therewith In 320 boot sections, and clamping device 320 switches to clamp position at this time, and so on.

The replacement mechanism 310 is set to the underface of 320 boot section of clamping device, and replacement mechanism 310 includes fixing In the fixation bracket 311 in shell 100, the magazine 312 for storing substitute protective tube, for pushing replacing for substitute protective tube Change actuator.

The magazine 312 is the frame structure for being provided with storing area, and magazine 312 is detachable is installed on fixation On bracket 311.

The substitute actuator includes replacement guide rod 313, replacement plate 314, replacement spring 315, and replacement guide rod 313 draws The big face of shell 100 and axial perpendicular to clamping 322 clamp area of guide rod of being oriented parallel to is led, and replaces guide rod 313 and is fixed on storing On casket 312, substitute guide rod 313 is provided with two groups and is located at 312 storing area of magazine along 320 clamp area of clamping device axial direction Side.

The replacement plate 314 is set in the storing area of magazine 312 and its big face drawing perpendicular to replacement guide rod 313 Direction is led, the side of replacement plate 314 is provided with socket protrusion and replacement plate 314 is by being socketed raised pivot bush unit in replacement guide rod It outside 313 and constitutes slide-and-guide between the two to cooperate, the socket protrusion is correspondingly arranged on two groups.

The replacement spring 315 in compressive state and its be sheathed on replacement guide rod 313 outside, replacement spring 315 one End is contradicted with 312 bottom of magazine, the other end is contradicted with the socket protrusion being set on replacement plate 314, replaces the bullet of spring 315 Power makes to replace the movement that plate 314 does close clamping device 320 along replacement 313 channeling direction of guide rod.

Several groups substitute protective tube edge replacement 313 channeling direction of guide rod deposited in replacement mechanism 310 is successively It is set in the storing area of magazine 312, and the substitute protective tube of bottom and replacement 314 upper end face contact of plate.

The course of work of mechanism 310 is replaced, specifically: when clamping device 320 is in clamp position, replacement mechanism 310 is quiet It is only motionless, during clamping device 320 switches to softened state and user is manually retracted by triggering pushing-unloading device 400, replacement The elastic force of spring 315 is risen overally by the replacement push substitute protective tube of plate 314, will finally be located at 320 boot section of clamping device Interior substitute protective tube pushes in 320 clamp area of clamping device and becomes new work insurance pipe, deposits in replacement mechanism 310 The substitute protective tube for being located at the top in interior several groups substitute protective tube is pushed to therewith in 320 boot section of clamping device, and And clamping device 320 switches to clamp position at this time, and so on.

The triggering pushing-unloading device 400 is set to the side that clamping device 320 deviates from discharge port 110, and dress is shirked in triggering Setting 400 includes position-limit mechanism 410, Push-unloading scraper 420, and position-limit mechanism 410 is done for limiting Push-unloading scraper 420 close to clamping device 320 movement, the work insurance pipe after Push-unloading scraper 420 is used to fuse release shell 100.

The position-limit mechanism 410 includes connecting bracket 411, limit plate 412, and connecting bracket 411 is fixed on shell 100 It is interior, the big face parallel to the large face in shell 100 of limit plate 412 and limit plate 412 is fixed on connecting bracket 411 towards clamping device The limit hole 413 close to itself and 411 fixed point of connecting bracket is offered on 320 side and limit plate 412, it is described Limit plate 412 is provided with two groups along the channeling direction of clamping guide rod 322.

The Push-unloading scraper 420 includes shirking shell 421, the push rod for being triggered by work insurance pipe frizzen 240 423, for matching the locating part for merging limitation Push-unloading scraper 420 and moving with limit hole 413, for driving Push-unloading scraper 420 by work Make protective tube to release shell 100 or shirk actuator by what user was manually retracted by.

The actuator of shirking includes pull rod 427, shirks spring 428, and the extending direction of pull rod 427 is parallel to clamping machine The axial direction of 320 clamp area of structure, pull rod 427 are movably installed in connecting bracket 411 and constitute slide-and-guide cooperation, and pull rod 427 One end be located at region between two groups of limit plates 412, the side that the other end is located at connecting bracket 411 away from clamping device 320 And it extend out to the outside of shell 100 and end matching is provided with handle 429 for user's manual operation.

The shell 421 of shirking is set between two groups of limit plates 412, is shirked shell 421 and is constituted and divided by two parts Section, limit section Wei not be pushed, limit section is the rectangular case structure of both ends open and the open end of limit section is right against limit hole 413, the outside for limiting section is provided with gearing protrusion 422 and interlocks protrusion 422 and is fixedly connected with pull rod 427, interlocks protrusion 422 It is provided with two groups and is respectively to be set to the lower gearing protrusion that the upper gearing above limit section is raised, is set to below limit section, The pull rod 427 is correspondingly arranged on two groups.

The spring 428 of shirking is sheathed on outside the part that pull rod 427 is located between gearing protrusion and connecting bracket 411 Portion, the bullet elastic force for shirking spring 428 shirk the whole movement done close to clamping device 320 of shell 421, shirk spring 428 It is correspondingly arranged on two groups.

The push section is both ends open and the circular tube structure coaxially arranged with 320 clamp area of clamping device, and Push section is fixed on limit section towards the side of clamping device 320, limits the cunning being also provided in section for connecting with push section Hole.

The described coaxial arrangement of push rod 423 is in the push section for shirk shell 421 and constituting slide-and-guide cooperation, and push rod 423 one end be located at push section and 320 clamp area of clamping device between, the other end pass through slide opening and be located at limit section in and should End is fixed with pushing block 424, and 424 size of pushing block is greater than slide opening size.

The locating part is set in the limit section of Push-unloading scraper 420 and is located at pushing block 424 away from clamping device 320 Side, locating part include gag lever post 425, elastic piece 426.

The gag lever post 425 is hingedly set in limit section and hinged shaft core line is parallel to the guidance of replacement guide rod 313 Direction and hinge joint are located at the middle position of gag lever post 425, and one end of gag lever post 425 contacts with pushing block 424, the other end For positive stop end and the end passes through limit section and is open and is located in limit hole.

The elastic piece 426 is set to the side that gag lever post 425 deviates from pushing block 424, and elastic piece 426 is hingedly set to limit In the section of position and hingedly shaft core line is parallel to the channeling direction for replacing guide rod 313 and hinge joint is located at the interposition of elastic piece 426 Place is set, one end of elastic piece 426 and gag lever post 425 contradict, the other end and the cavity wall of limit section contradict, and the bullet of elastic piece 426 Power makes the positive stop end of gag lever post 425 do the rotation far from clamping device 320 and finally extend out in limit hole.

The locating part is correspondingly arranged on two groups and is axially symmetric about push rod 423.

The motion state of the Push-unloading scraper 420 can be divided into 425 positive stop end of gag lever post and be located in limit hole and be limited Mechanism 410 limits the limit state close to the movement of clamping device 320 of doing, 425 positive stop end of gag lever post is retracted to and shirks in shell 421 And the revocation of position-limit mechanism 410 shirks state to what Push-unloading scraper 420 limited, and the original state of Push-unloading scraper 420 is limit shape State.

Trigger the course of work of pushing-unloading device 400, specific manifestation are as follows: when being blown work insurance pipe because of short circuit Afterwards, 240 free end of frizzen of work insurance pipe extend out to first 220 outside of contact tube and contacts and push with push rod 423 Push rod 423 does the movement far from clamping device 320, and push rod 423 moves and draws pushing block 424 and moves synchronously, and pushing block 424 moves simultaneously So that the positive stop end of gag lever post 425 does the rotation close to clamping device 320, finally it is retracted to the positive stop end of gag lever post 425 and pushes away It unloads in shell 421, Push-unloading scraper 420, which switches to, shirks state, and the elastic force for then shirking spring 428 keeps Push-unloading scraper 420 whole The movement close to clamping device 320 is done, so that the work insurance pipe after fusing is released shell 100；

Then, user, which is manually retracted by handle 429, can make Push-unloading scraper 420 integrally do the movement far from clamping device 320, when After Push-unloading scraper 420 back switches to limit state, replacement mechanism 310 is protected the substitute in 320 boot section of clamping device is located at Dangerous pipe pushes in 320 clamp area of clamping device and becomes new work insurance pipe.

More optimize, it is in Push-unloading scraper 420 that work insurance pipe release 100/ Push-unloading scraper 420 of shell after fusing is extensive During answering to original state, work insurance pipe/shirk to generate between the push of shell 421 section, conductive sheet 325 and rub and to conduction Piece 325 causes to wear, and 325 conducting process of conductive sheet is caused to be affected, and in addition to this, replacement mechanism 310 replaces protective tube 200 During, it is to be realized by replacing the elastic force driving of spring 315, then the coefficient of elasticity of replacement spring 315 is required to be greater than The spring ratio of clamp springs 324, so that clamping device 320 is caused to fail stable holding work insurance pipe, it can be to power on circuitry It impacts, to solve the above-mentioned problems, the triggering pushing-unloading device 400 further includes partition rod 430.

The extending direction of the partition rod 430 is parallel to the axial direction of 320 clamp area of clamping device, and partition rod 430 is solid Due to being set to the upper gearing protrusion of shirking 421 upper surface of shell towards on the side of clamping device 320, partition rod 430 from By holding the two sides along clamping guide rod 322 to be provided with separation inclined-plane, and the distance between two separation inclined-planes prolong along partition rod 430 It stretches direction and the direction by interlocking protrusion in the direction of its free end is incremented by, two groups of grip blocks 323 side close to each other On be provided with and separate the lead-in chamfered that matches of inclined-plane, and the free end of partition rod 430 is located between two groups of lead-in chamfereds.

When work insurance pipe be blown and Push-unloading scraper 420 be triggered and switch to shirk state after, Push-unloading scraper 420 is whole Body is done in the motion process of clamping device 320, the fortune that partition rod 430 pushes two groups of grip blocks 323 to do to be located remotely from each other in advance It is dynamic, even if 320 Pre-handoff of clamping device, to softened state, subsequent Push-unloading scraper 420 releases the work insurance pipe after fusing Shell 100；

User is manually retracted by handle 429 and does Push-unloading scraper 420 integrally in the motion process far from clamping device 320, when Behind push section free end disengaging 310 clamp area of clamping device for shirking shell 421, partition rod 430 does not restore also to original state, that is, presss from both sides Mechanism 320 is held also in softened state, the substitute in 320 boot section of clamping device will can be smoothly located at by replacing mechanism 310 at this time Protective tube pushes in 320 clamp area of clamping device and becomes new work insurance pipe, while replacement is completed, partition rod 430 Free end is located at again between two groups of lead-in chamfereds, i.e., Push-unloading scraper 420 restores to limit state.

Preferably, the part that the shell 100 is right against replacement mechanism 310 offers through-hole, and is provided in through-hole Transparency window made of transparent material；User can observe the volume residual of substitute protective tube by transparency window, when all substitutes are protected After danger pipe fuses, this fuse protector can be dismantled and reappose the new protective tube 200 of several groups by user.

More specifically, replace mechanism 310 replace protective tube 200 during, in order to prevent circuit moment connect and Protective tube 200 is caused to fuse again, described two groups are provided with induction closure switch 500, induction between conduct piece, circuit lines Closure switch 500 be used in 200 replacement process of protective tube disconnecting circuit/protective tube 200 replace after when close circuit It closes.

The induction closure switch 500 include conductive contact mechanism 510, conducting wire 520, conductive contact mechanism 510 For incuding the state of triggering pushing-unloading device 400 and determining whether circuit disconnects, conducting wire 520 is used for conductive contact mechanism 510, two groups of conductive connections between conduct piece, circuit lines.

The conductive contact mechanism 510 is set in shell 100, conductive contact mechanism 510 include mounting bracket 5110, Stationary contact component 5120, movable contact component 5130, mounting bracket 5110 are fixed in shell 100, and solid in mounting bracket 5110 Surely there are two groups of support plates, two groups of support plates are respectively to deviate from close to the support plate one of mouth substituting device 300, positioned at support plate one The support plate two of 300 side of mouth substituting device.

The stationary contact component 5120 includes buffer bar 5121, buffer spring 5122, and the buffer bar 5121 prolongs It stretches the axial direction for being oriented parallel to 320 clamp area of clamping device and buffer bar 5121 is movably installed in support plate two and constitutes sliding Guiding cooperation, and one end of buffer bar 5121 is located between two groups of support plates and end matching is provided with stationary contact 5123, another One end be located at support plate two away from support plate one side and the end matching be provided with connecting terminal 5124, the buffer spring 5122 are sheathed on portion of external of the buffer bar 5121 between two groups of support plates, and the elastic force of buffer spring 5122 makes buffer bar 5121 do the movement close to support plate one, and the stationary contact component 5120 is provided with two groups along clamping 322 channeling direction of guide rod.

The movable contact component 5130 includes guide rod 5131, guide plate 5132, cut spring 5134, interlock plate 5135, the channeling direction of guide rod 5131 is parallel to the extending direction of buffer bar 5121, and guide rod 5131 is fixed on two groups of branch Between fagging, and guide rod 5131 is provided with two groups along the channeling direction of clamping guide rod 322.

Overlap aperture is offered on the guide plate 5132, guide plate 5132 is by overlap aperture pivot bush unit in guide rod It outside 5131 and constitutes slide-and-guide cooperation between the two and guide plate 5132 is located at stationary contact 5123 towards support plate one Side, the side of guide plate 5132 towards stationary contact 5123 are provided with the movable contact 5133 to match with stationary contact 5123 and move Contact 5133 is correspondingly arranged on two groups.

The cut spring 5134 is in compressive state, and cut spring 5134 is sheathed on guide rod 5131 and is located at guide plate Portion of external between 5132 and support plate two, and the elastic force of cut spring 5134 does guide plate 5132 close to support plate one Movement, cut spring 5134 are correspondingly arranged on two groups.

The interlock plate 5135 is fixed on the top of guide plate 5132, and the upper surface of interlock plate 5135 is provided with induction Protrusion, induction protrusion, which is located at, is set to the side that the lower gearing protrusion for shirking 421 lower section of shell deviates from mouth substituting device 300, And incude protrusion and lower gearing projection contacts.

The motion state of the conductive contact mechanism 510 can be divided into the closure that movable contact 5133 is contacted with stationary contact 5123 The off-state that state, movable contact 5133 and stationary contact 5123 disengage, the original state of conductive contact mechanism 510 are closure State.

The course of work of wire contact mechanism 510, specific manifestation are as follows: when work insurance Guan Wei is blown and works normally, It is stationary to trigger pushing-unloading device 400, so that conductive contact mechanism 510 is in closed state；

During work insurance pipe fuses and is replaced, the whole fortune done close to clamping device 320 of triggering pushing-unloading device 400 It is dynamic, to make to be set to induction of the lower gearing protrusion revocation for shirking 421 lower section of shell to 5135 upper surface of interlock plate is set to The limitation of protrusion, i.e. cut spring 5134 make movable contact 5133 do the movement close to support plate one and are detached from and stationary contact 5123 Contact, conductive contact mechanism 510 switch to off-state；

During the replacement of protective tube 200 finishes and triggers the recovery of pushing-unloading device 400 to original state, it is set to and shirks shell 421 The lower gearing protrusion of lower section can be set to the induction projection contacts of 5135 upper surface of interlock plate, so that movable contact 5133 be driven to do The movement of close support plate two is simultaneously contacted with stationary contact 5123, and conductive contact mechanism 510 back switches to closed state；

Since conductive contact mechanism 510 is just to back switch to closed state after protective tube 200 is replaced, to solve The problem of circuit moment connects and protective tube 200 is caused to fuse again.

The conducting wire 520 includes lug plate 521, conductor wire 1, conductor wire 2 523, conductor wire 3 524, is connect One end of line piece 521 is located in shell 100, the other end is extend out to outside shell 100, and lug plate 521 is provided with two groups.

One end of the conductor wire 1 connect with one group of lug plate 521, the connector lug of the other end and conduct piece one 326 connections, one end of conductor wire 2 523 connect with the connector lug 326 of conduct piece two, the other end and one group of stationary contact component 5120 Connecting terminal 5124 connect, one end of conductor wire 3 524 connect with the connecting terminal 5124 of another group of stationary contact component 5120, The other end is connect with another group of lug plate 521.

Described circuit lines one end connect with one group of lug plate 521, after other end series/parallel several groups electrical equipment with Another group of lug plate 521 connects and constitutes conductive closed circuit.

Electric current in circuit passes through one group of lug plate 521, conductor wire 1, conduct piece one, work insurance pipe, conduct piece Two, conductor wire 2 523, conductive contact mechanism 510, conductor wire 3 524, lug plate 521 circulate, when conductive contact mechanism 510 in the closure state, closing of circuit, and when conductive contact mechanism 510 is in an off state, circuit is disconnected.

Claims

1. intelligent circuit fuse protector, which is characterized in that it includes the shell in rectangular case structure, is equipped in shell Protective tube, mouth substituting device, triggering pushing-unloading device, the protective tube is stored in mouth substituting device, and protective tube point Work insurance pipe to be connect with circuit conductive, the substitute protective tube for being replaced after the fusing of work insurance pipe, and Substitute protective tube is provided with several groups, and the triggering pushing-unloading device is used to be pushed out shell after the fusing of work insurance pipe Body, the mouth substituting device are used to fuse and release in work insurance pipe after shell the protective tube that will substitute and push to former work Protective tube position simultaneously becomes new work insurance pipe；

2. intelligent circuit fuse protector according to claim 1, which is characterized in that also set up in the protective tube There is insulation sleeve, insulation sleeve is annular nested structure, and insulation sleeve is provided with two groups and one group of insulation sleeve is coaxially fixed on transition disc and deviates from The bottom of chamber of conductive tube head two, the both ends difference of the compressed spring are coaxially fixed in the end face of frizzen, another group of insulation sleeve It is connect with two groups of insulation sleeves.

3. intelligent circuit fuse protector according to claim 1, which is characterized in that the mouth substituting device packet Replacement mechanism, clamping device are included, clamping device is used for for clamping work insurance pipe, the replacement mechanism in work insurance pipe It fuses and releases and substitute protective tube is pushed into former work insurance pipe position after shell；

4. intelligent circuit fuse protector according to claim 3, which is characterized in that the replacement mechanism is set to The underface of clamping device boot section, replacement mechanism include being fixed on the intracorporal fixed bracket of shell, for storing substitute protective tube Magazine, for push substitute protective tube replacement actuator；

5. intelligent circuit fuse protector according to claim 1 or 3, which is characterized in that dress is shirked in the triggering It installs and is placed in the side that clamping device deviates from discharge port, triggering pushing-unloading device includes position-limit mechanism, Push-unloading scraper, and position-limit mechanism is used The movement close to clamping device is done in limitation Push-unloading scraper, the work insurance pipe after Push-unloading scraper is used to fuse releases shell；

6. intelligent circuit fuse protector according to claim 5, which is characterized in that the Push-unloading scraper includes pushing away It unloads shell, the push rod for being triggered by work insurance pipe frizzen, merge limitation Push-unloading scraper movement for matching with limit hole Locating part, for driving Push-unloading scraper that work insurance pipe is released shell or by what user was manually retracted by shirking actuator；

7. intelligent circuit fuse protector according to claim 6, which is characterized in that the push section is opened for both ends Mouth and the circular tube structure coaxially arranged with gripper mechanism grips area, and push section and be fixed on limit section towards clamping device Side limits the slide opening being also provided in section for connecting with push section；

8. intelligent circuit fuse protector according to claim 7, which is characterized in that the triggering pushing-unloading device is also Including partition rod, the extending direction of the partition rod is parallel to the axial direction in gripper mechanism grips area, and partition rod is fixed on and sets It is placed in and shirks the upper gearing protrusion in upper shell face towards on the side of clamping device, the free end of partition rod is along clamping guide rod Two sides are provided with separation inclined-plane, and the distance between two separation inclined-planes are directed toward along partition rod extending direction and by its free end The upper direction for interlocking protrusion is incremented by, and is provided on two groups of grip blocks side close to each other and separates what inclined-plane matched Lead-in chamfered, and the free end of partition rod is located between two groups of lead-in chamfereds；

9. intelligent circuit fuse protector according to claim 1 or 3, which is characterized in that two groups of conduct pieces, Be provided with induction closure switch between circuit lines, induction closure switch be used in protective tube replacement process disconnecting circuit/ Make closing of circuit when after protective tube replacement；

10. intelligent circuit fuse protector according to claim 8, which is characterized in that the conducting wire includes Lug plate, conductor wire one, conductor wire two, conductor wire three, one end of lug plate is located in shell, the other end is extend out to outside shell Portion, lug plate are provided with two groups；