CN111029200A - Current overload protection switch blade convenient to change fuse - Google Patents
Current overload protection switch blade convenient to change fuse Download PDFInfo
- Publication number
- CN111029200A CN111029200A CN202010015791.0A CN202010015791A CN111029200A CN 111029200 A CN111029200 A CN 111029200A CN 202010015791 A CN202010015791 A CN 202010015791A CN 111029200 A CN111029200 A CN 111029200A
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- cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/04—Cases; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/04—Cases; Covers
- H01H21/06—Cases; Covers interlocked with operating mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/16—Adaptation for built-in fuse
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Abstract
The invention discloses a current overload protection switch blade convenient for replacing a fuse, which comprises a base and a first rubber cover fixedly arranged on the upper end surface of the base, wherein a switch device is arranged in the first rubber cover, the switch device comprises a switch cavity which is arranged on the right end surface of the first rubber cover and has a right opening, two groups of clamping spring pieces are symmetrically and fixedly arranged at the front and back positions on the left side of the lower wall of the switch cavity, a rubber cover opening and closing device is arranged on the upper side of the base, and a protection device is arranged on the lower side of the switch device.
Description
Technical Field
The invention relates to the technical field of circuit protection, in particular to a current overload protection switch blade convenient for replacing a fuse.
Background
The knife switch is a mainly used isolated power, switching operation, is used for intercommunication and cutting off the undercurrent circuit, and the switching device of no arc extinguishing function is one of the circuit control switch that uses more often, however current knife switch only basically simple switching function deuterogamies the fuse and uses, can't play more sensitive circuit protection effect, and if the fuse damages, need dismantle the gluey lid etc. and just can change when changing the fuse, troublesome poeration. The present invention sets forth a device that solves the above problems.
Disclosure of Invention
The technical problem is as follows:
current plug-in strip is basically only simple switch function and uses in coordination with the fuse again, can't play more sensitive circuit protection effect, and need dismantle the gluey lid etc. and just can change troublesome poeration when changing the fuse.
In order to solve the problems, the present example designs a current overload protection switch blade convenient for replacing a fuse, the current overload protection switch blade convenient for replacing the fuse of the present example comprises a base and a first rubber cover fixedly arranged on the upper end surface of the base, a switch device is arranged in the first rubber cover, the switch device comprises a switch cavity which is arranged on the right end surface of the first rubber cover and has a right opening, two groups of clamping spring pieces are symmetrically and fixedly arranged in the front and back of the left side of the lower wall of the switch cavity, two clamping spring pieces are symmetrically and front and back of each group of two clamping spring pieces, a first through hole with symmetrical front and back positions is arranged between the upper wall and the left wall of the switch cavity and communicated with the outside, two groups of rotating connecting pieces are fixedly arranged on the lower wall of the switch cavity and on the right side of the clamping spring pieces, a rotating shaft is rotatably arranged between the rotating connecting pieces, a switch extending to the outside through the first through, the upper ends of the knife switches on the front side and the rear side are jointly fixedly provided with a fixed block, the upper end face of the fixed block is fixedly provided with a handle, the upper side of the base is provided with a rubber cover opening and closing device, the rubber cover opening and closing device comprises a second rubber cover which can slide left and right and is arranged on the upper end face of the base and is arranged on the right side of the first rubber cover, the left end face of the fuse cavity is provided with a fuse cavity with a left opening and can be communicated with the knife switch cavity, the lower wall of the fuse cavity is symmetrically and fixedly provided with two groups of joint blocks in front and rear positions on the right side of the rotary joint piece, the two joint blocks in each group are bilaterally symmetrical, the upper end face of each joint block is provided with a joint cavity with an upward opening, the joint cavity is internally provided with a conductive block which can slide up and down, a fuse is fixedly connected between the conductive blocks on the left side and the right, the push block cavity is internally provided with a push block with the upper end extending into the disconnecting link cavity in a vertically sliding manner, a second spring is fixedly connected between the push block and the inner wall of the push block cavity, and when the disconnecting link is turned downwards and closed, the disconnecting link can abut against the push block and push the push block to slide downwards. Preferably, the gluey lid device that opens and shuts is located left including fixed first wire in the left wall of joint chamber, the one end electric connection of first wire is left rotate the splicing, and works as when the conducting block is in lower extreme position can with first wire switch-on is electrically conductive, the second is glued and is covered wall and right wall and external intercommunication and is equipped with the second opening of front and back position symmetry, the second opening can with first opening intercommunication, wall right side downside intercommunication is equipped with fuse chamber intercommunication and opening wire channel to the right side around the second opening, the right side joint chamber right wall internal fixation is equipped with the right-hand member and passes through the wire channel extends to outer second wire, and works as when the conducting block is in lower extreme position can with the second wire switch-on is electrically conductive.
But preferably, fuse chamber lower wall bilateral symmetry just fixedly is equipped with two and leads the slide bar, it is equipped with the limiting plate jointly to lead slide bar upper end, under the limiting plate terminal surface with rotatable screw rod, the left and right sides of being equipped with gliding slide from top to bottom on leading the slide bar jointly, slide threaded connection in the screw rod, conducting block upper end fixed connection in the lower terminal surface of slide.
Preferably, be equipped with in the fuse chamber lower wall and rotate the chamber, it is rotatable to be equipped with first pivot in the chamber upper wall to rotate, first pivot upper end extends to fuse intracavity and fixed connection in the screw rod lower extreme, first pivot lower extreme is fixed and is equipped with the reel, around being equipped with on the reel and acting as go-between, the reel lower extreme with rotate the first torsional spring of intracavity wall between the first torsional spring of fixedly connected with, be equipped with first slider chamber in the base up end, first slider chamber upper wall intercommunication is equipped with the ascending second slider chamber of opening, but first slider intracavity horizontal slip be equipped with first slider, but second slider intracavity horizontal slip be equipped with the second slider, second slider upper end fixed connection in second is in the terminal surface under the second is glued to cover, second slider lower extreme fixed connection in first slider up end.
Preferably, what link up around the switch is equipped with the spacing groove, spacing groove lower extreme intercommunication is equipped with the arc opening of opening right, the fixed supporting shoe that is equipped with of second jiao gai up end, the fixed first push rod that is equipped with of supporting shoe left end face, the fixed gag lever post that is equipped with in first push rod left end, work as during the switch upset, both ends accessible around the gag lever post the arc opening gets into the spacing inslot, and can in slide in the spacing groove, first jiao gai right end face is equipped with the slider chamber of opening right, but slider intracavity horizontal slip be equipped with right-hand member fixed connection in the slider of second jiao gai, the slider with fixedly connected with first spring between the slider intracavity wall.
Preferably, the protection device is including locating ejector pad right-hand member face and opening fixture block chamber to the right, the fixture block intracavity can the horizontal slip be equipped with the right-hand member can extend outer fixture block, the fixture block with fixedly connected with third spring between the fixture block intracavity wall, ejector pad chamber right side wall intercommunication is equipped with the push rod chamber, fixture block right-hand member protractile the push rod intracavity, but the horizontal slip be equipped with the second push rod in the push rod intracavity, the terminal surface right side is equipped with the tooth's socket that the opening is decurrent under the second push rod.
Preferably, a third slide block cavity is arranged in the lower wall of the push rod cavity, a third slide block is arranged in the third slide block cavity and can slide left and right, a fourth spring is fixedly connected between the left end of the third slide block and the inner wall of the third slide block cavity, an alloy groove with an upward opening is arranged on the upper end surface of the third slide block, sliding grooves are symmetrically arranged on the front wall and the rear wall of the alloy groove and communicated with the front wall and the rear wall of the alloy groove, a fourth slide block with front and rear ends extending into the sliding grooves is arranged in the alloy groove and can slide left and right, a rack is fixedly arranged on the upper end surface of the fourth slide block, low-melting-point alloy is fixedly arranged in the alloy groove, the lower ends of the sliding grooves and the fourth slide block are positioned in the upper end surface of the low-melting-point alloy, an elastic heat conducting wire is arranged on the right side in the third slide block cavity, one end of, when the circuit is communicated with the rotating contact piece to generate heat, the elastic heat conducting wire can transfer heat to the low-melting-point alloy, and the low-melting-point alloy is melted so that the fourth sliding block can slide left and right.
Preferably, the push rod cavity with the intercommunication is equipped with the gear chamber between the third slider chamber, the rack upper end extends to in the gear chamber, rotatable second pivot that is equipped with between the wall around the gear chamber, the fixed meshing that is equipped with in the second pivot the tooth's socket with the gear of rack, gear rear end face with fixedly connected with second torsional spring between the gear intracavity wall.
The invention has the beneficial effects that: the circuit can be effectively protected, when the current in the circuit is overlarge, the disconnecting link can be automatically bounced to disconnect the circuit, so that the circuit is protected, the circuit is prevented from being damaged, and when the disconnecting link is turned rightwards, the second rubber cover can be automatically opened and the fuse can be separated from the circuit, so that the fuse is safer and more convenient to replace.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of the overall structure of a current overload protection blade of the present invention for facilitating fuse replacement;
FIG. 2 is a sectional view taken in the direction "A-A" of FIG. 1;
FIG. 3 is a sectional view taken in the direction "B-B" of FIG. 2;
FIG. 4 is an enlarged schematic view of "C" of FIG. 1;
fig. 5 is a cross-sectional view taken in the direction "D-D" of fig. 4.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a current overload protection knife switch convenient for replacing a fuse, which is mainly applied to play a role in protection under the condition of current overload in a circuit, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a current overload protection switch blade convenient for replacing a fuse, which comprises a base 11 and a first rubber cover 12 fixedly arranged on the upper end surface of the base 11, wherein a switch device 101 is arranged in the first rubber cover 12, the switch device 101 comprises a switch cavity 13 which is arranged on the right end surface of the first rubber cover 12 and has a right opening, two groups of clamping spring pieces 14 are symmetrically arranged at the front and back positions on the left side of the lower wall of the switch cavity 13, two clamping spring pieces 14 of each group are symmetrically arranged at the front and back positions, a first through hole 15 which is symmetrically arranged at the front and back positions is communicated with the outside is arranged on the upper wall and the left wall of the switch cavity 13, two groups of rotating connecting pieces 16 are fixedly arranged on the lower wall of the switch cavity 13 and on the right side of the clamping spring pieces 14, a rotating shaft 17 is rotatably arranged between the rotating connecting pieces 16 of each group, a switch 18 which extends to the outside through the, the upper ends of the front and rear knife switches 18 are jointly and fixedly provided with a fixed block 19, the upper end surface of the fixed block 19 is fixedly provided with a handle 20, the upper side of the base 11 is provided with a rubber cover opening and closing device 102, the rubber cover opening and closing device 102 comprises a second rubber cover 21 which can slide left and right and is arranged on the upper end surface of the base 11 and on the right side of the first rubber cover 12, the left end surface of the fuse cavity 22 is provided with a fuse cavity 22 with a left opening and can be communicated with the knife switch cavity 13, the lower wall of the fuse cavity 22 is symmetrically and fixedly provided with two groups of joint blocks 23 at the front and rear positions on the right side of the rotating connecting piece 16, two joint blocks 23 of each group are bilaterally symmetrical, the upper end surface of the joint block 23 is provided with an upward opening joint cavity 24, the conductive blocks 33 can slide up and down in the joint cavity 24, fuses 34 are fixedly connected between the conductive blocks 33 on the left and right sides, the protection device 103 comprises a push block cavity 52 which is symmetrical in front and back and is communicated with the lower wall of the disconnecting link cavity 13, a push block 53 with the upper end extending into the disconnecting link cavity 13 is arranged in the push block cavity 52 in a vertically sliding manner, a second spring 54 is fixedly connected between the push block 53 and the inner wall of the push block cavity 52, and when the disconnecting link 18 is turned downwards and closed, the disconnecting link 18 can abut against the push block 53 and push the push block 53 to slide downwards.
Advantageously, the glue lid opening and closing device 102 is described in detail below, said glue lid opening and closing device 102 comprises a first conducting wire 25 fixedly arranged in the left wall of said joining cavity 24 on the left side, one end of said first conducting wire 25 is electrically connected to said rotating tab 16 on the left side, and can be electrically connected with the first conducting wire 25 when the conducting block 33 is at the lower limit position, the upper wall and the right wall of the second rubber cover 21 are communicated with the outside and are provided with second through holes 26 with symmetrical front and back positions, the second port 26 can be communicated with the first port 15, a wire channel 27 which is communicated with the fuse cavity 22 and has a right opening is communicated with the lower right side of the front and back walls of the second port 26, a second wire 28 with a right end extending to the outside through the wire channel 27 is fixedly arranged in the right wall of the bonding cavity 24 on the right side, and is electrically connected to the second conductive line 28 when the conductive block 33 is at the lower limit position.
Beneficially, fuse chamber 22 lower wall bilateral symmetry just is fixed and is equipped with two and leads slide bar 29, it is equipped with limiting plate 30 jointly to lead slide bar 29 upper end, limiting plate 30 lower extreme face with rotatable screw rod 31 that is equipped with between fuse chamber 22 lower wall, the left and right sides lead and be equipped with gliding slide 32 from top to bottom jointly on the slide bar 29, slide 32 threaded connection in screw rod 31, conducting block 33 upper end fixed connection in slide 32's lower terminal surface.
Advantageously, a rotating cavity 35 is arranged in the lower wall of the fuse cavity 22, a first rotating shaft 36 is rotatably arranged in the upper wall of the rotating cavity 35, the upper end of the first rotating shaft 36 extends into the fuse cavity 22 and is fixedly connected to the lower end of the screw 31, a winding wheel 37 is fixedly arranged at the lower end of the first rotating shaft 36, a pull wire 43 is wound on the winding wheel 37, a first torsion spring 38 is fixedly connected between the lower end surface of the winding wheel 37 and the inner wall of the rotating cavity 35, a first sliding block cavity 39 is arranged in the upper end surface of the base 11, a second sliding block cavity 40 with an upward opening is communicated with the upper wall of the first sliding block cavity 39, a first slide block 41 is arranged in the first slide block cavity 39 and can slide left and right, a second slide block 42 is arranged in the second slide block cavity 40 and can slide left and right, the upper end of the second sliding block 42 is fixedly connected to the lower end face of the second rubber cover 21, and the lower end of the second sliding block 42 is fixedly connected to the upper end face of the first sliding block 41.
Beneficially, the knife switch 18 is provided with a limiting groove 44 penetrating through the front and back, the lower end of the limiting groove 44 is communicated with an arc-shaped through hole 45 with a rightward opening, the upper end surface of the second rubber cover 21 is fixedly provided with a supporting block 46, the left end surface of the supporting block 46 is fixedly provided with a first push rod 47, the left end of the first push rod 47 is fixedly provided with a limiting rod 48, when the knife switch 18 is turned over, the front end and the back end of the limiting rod 48 can enter the limiting groove 44 through the arc-shaped through hole 45 and can slide in the limiting groove 44, the right end surface of the first rubber cover 12 is provided with a sliding rod cavity 49 with a rightward opening, the sliding rod cavity 49 is internally provided with a sliding rod 50 with a right end fixedly connected to the second rubber cover 21 and capable of sliding left and right, and a first spring 51 is fixedly connected between the sliding rod 50.
Beneficially, as the following detailed description is provided for the protection device 103, the protection device 103 includes a fixture block cavity 55 disposed on the right end surface of the push block 53 and having a rightward opening, a fixture block 56 having a right end capable of extending outward is disposed in the fixture block cavity 55 in a left-right sliding manner, a third spring 57 is fixedly connected between the fixture block 56 and the inner wall of the fixture block cavity 55, a push rod cavity 58 is disposed in the right wall of the push block cavity 52 in a communicating manner, the right end of the fixture block 56 can extend into the push rod cavity 58, a second push rod 59 is disposed in the push rod cavity 58 in a left-right sliding manner, and a tooth socket 60 having a downward opening is disposed on the right side of the lower end surface of the second push rod 59.
Beneficially, a third slider cavity 61 is arranged in the lower wall of the push rod cavity 58, a third slider 62 is arranged in the third slider cavity 61 and can slide left and right, a fourth spring 63 is fixedly connected between the left end of the third slider 62 and the inner wall of the third slider cavity 61, an alloy groove 64 with an upward opening is arranged on the upper end surface of the third slider 62, sliding grooves 65 are symmetrically arranged on the front and rear walls of the alloy groove 64 and communicated with each other, a fourth slider 66 with front and rear ends extending into the sliding grooves 65 and capable of sliding left and right is arranged in the alloy groove 64, a rack 67 is fixedly arranged on the upper end surface of the fourth slider 66, a low-melting-point alloy 68 is fixedly arranged in the alloy groove 64, at this time, the lower ends of the sliding grooves 65 and the fourth slider 66 are located in the upper end surface of the low-melting-point alloy 68, an elastic heat conducting wire 69 is arranged on the right side in the third slider cavity 61, one end of the elastic heat conducting wire 69 is, the other end of the elastic heat conducting wire 69 is fixedly connected to the lower end of the rotating contact piece 16, when the circuit is communicated with the rotating contact piece 16 to generate heat, the elastic heat conducting wire 69 can transfer the heat to the low-melting-point alloy 68, and the low-melting-point alloy 68 is melted, so that the fourth sliding block 66 can slide left and right.
Beneficially, a gear cavity 70 is arranged between the push rod cavity 58 and the third slider cavity 61 in a communicating manner, the upper end of the rack 67 extends into the gear cavity 70, a second rotating shaft 71 is rotatably arranged between the front wall and the rear wall of the gear cavity 70, a gear 72 meshed with the tooth socket 60 and the rack 67 is fixedly arranged on the second rotating shaft 71, and a second torsion spring 73 is fixedly connected between the rear end face of the gear 72 and the inner wall of the gear cavity 70.
The steps of using a current overload protection blade to facilitate fuse replacement are described in detail below with reference to fig. 1-5:
at the beginning, the knife switch 18 is in a vertical state, the sliding plate 32 and the conductive block 33 are in the lower limit position, the second rubber cover 21, the first sliding block 41 and the second sliding block 42 are in the left limit position, the limiting rod 48 is in the lower limit position of the limiting groove 44, the sliding rod 50 is in the left limit position, the pushing block 53 is in the upper limit position, the clamping block 56 is received in the clamping block cavity 55, the third spring 57 is in a compressed state, the second pushing rod 59 is in the left limit position, the third sliding block 62 is in the right limit position, and the fourth spring 63 is in a stretched state.
When the switch is switched on, the knife switch 18 is turned to the left side by hand through the handle 20 to a horizontal state, at this time, the knife switch 18 pushes the push block 53 to slide down to a lower limit position, and then the right end of the block 56 extends into the push rod cavity 58 under the action of the third spring 57, and then the second push rod 59 is pushed to slide right, when the second push rod 59 slides right, the gear 72 and the second rotating shaft 71 are driven to rotate through the tooth space 60, the gear 72 drives the rack 67 and the third slider 62 to slide left when the gear 72 rotates, when the current is overloaded, the elastic heat conducting wire 69 transmits the heat generated by the rotating connecting piece 16 to the low melting point alloy 68, and then the low melting point alloy 68 is melted, when the gear 72 rotates, the elastic force of the fourth spring 63 is not overcome, the gear 72 rotates under the action of the second torsion spring 73 to drive the second push rod 59 to slide left, and then the second push the block 59 pushes the block 56 back into the block 55 of the block 55, and then the block 53 is pushed up, and the function of protecting the circuit is realized.
If the fuse 34 is damaged due to circuit overload and the like, the disconnecting link 18 is turned rightwards, the disconnecting link 18 pushes the second rubber cover 21 to slide rightwards from the closing state in the process of turning vertically from the closing state, the front end and the rear end of the limiting rod 48 enter the limiting groove 44 through the arc-shaped through holes 45, when the disconnecting link 18 is turned rightwards, the limiting rod 48 and the first push rod 47 push the second rubber cover 21 to slide rightwards, when the second rubber cover 21 slides rightwards, the first sliding block 41 and the second sliding block 42 are driven to slide rightwards, the pull wire 43 is pulled when the second sliding block 42 slides rightwards, the pull wire 43 pulls the winding wheel 37 to rotate, the first rotating shaft 36 rotates and drives the screw rod 31 to rotate, then the sliding plate 32 slides upwards to enable the conductive block 33 to be separated from the joint cavity 24
The invention has the beneficial effects that: the circuit can be effectively protected, when the current in the circuit is overlarge, the disconnecting link can be automatically bounced to disconnect the circuit, so that the circuit is protected, the circuit is prevented from being damaged, and when the disconnecting link is turned rightwards, the second rubber cover can be automatically opened and the fuse can be separated from the circuit, so that the fuse is safer and more convenient to replace.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (8)
1. The utility model provides a current overload protection plug-in strip convenient to change fuse which characterized in that: the automatic knife switch comprises a base and a first rubber cover fixedly arranged on the upper end surface of the base, wherein a switch device is arranged in the first rubber cover, the switch device comprises a knife switch cavity which is arranged on the right end surface of the first rubber cover and has a right opening, two groups of clamping spring leaves are symmetrically and fixedly arranged on the left side of the lower wall of the knife switch cavity, two clamping spring leaves are symmetrically arranged on each group, the front part and the back part of each clamping spring leaf are symmetrically arranged, the upper wall and the left wall of the knife switch cavity are communicated with the outside and are provided with first through holes with front and back position symmetry, two groups of rotating connecting pieces are fixedly arranged on the right side of the clamping spring leaves on the lower wall of the knife switch cavity, a rotating shaft is rotatably arranged between the rotating connecting pieces, a knife switch extending to the outside through the first through holes is fixedly arranged on the upper end of the knife switch on the front side and the back, the rubber cover opening and closing device comprises a second rubber cover which is arranged on the upper end face of the base and on the right side of the first rubber cover and can slide left and right, a fuse cavity with a leftward opening and communicated with the disconnecting link cavity is arranged on the left end face of the fuse cavity, two groups of joint blocks are symmetrically and fixedly arranged on the lower wall of the fuse cavity on the front side and the rear side of the right side of the rotating connecting piece, two joint blocks in each group are bilaterally symmetrical, a joint cavity with an upward opening is arranged on the upper end face of each joint block, conductive blocks are arranged in the joint cavity in a vertically sliding manner, a fuse is fixedly connected between the conductive blocks on the left side and the right side, a protection device is arranged on the lower side of the switch device and comprises a push block cavity which is symmetrically arranged on the front side and the rear side and communicated with the lower wall of the disconnecting link cavity, a push block with an upper end extending into the disconnecting link cavity is arranged in the push block cavity in a vertically sliding, when the disconnecting link is turned downwards and closed, the disconnecting link can prop against the push block and push the push block to slide downwards.
2. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 1 wherein: glue and cover opening and shutting device including fixed left first wire in the joint chamber left wall, the one end electric connection of first wire is in the left the rotation splicing, and work as when the conducting block is in lower extreme position can with first wire switch-on is electrically conductive, the second glue cover wall and right wall and external intercommunication be equipped with the second opening of front and back position symmetry, the second opening can with first opening intercommunication, wall downside intercommunication is equipped with fuse chamber intercommunication and opening wire passageway to the right side around the second opening, right side joint chamber right side wall internal fixation is equipped with the right-hand member and passes through the wire passageway extends to outer second wire, and works as when the conducting block is in lower extreme position can with the second wire switch-on is electrically conductive.
3. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 1 wherein: fuse chamber lower wall bilateral symmetry just fixedly is equipped with two and leads the slide bar, it is equipped with the limiting plate jointly to lead the slide bar upper end, under the limiting plate terminal surface with rotatable screw rod, the left and right sides of being equipped with gliding slide from top to bottom jointly on leading the slide bar, slide threaded connection in the screw rod, conducting block upper end fixed connection in the lower terminal surface of slide.
4. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 1 wherein: the fuse is equipped with in the chamber lower wall and rotates the chamber, it is equipped with first pivot to rotate rotatable in the chamber upper wall, first pivot upper end extends to fuse intracavity and fixed connection in the screw rod lower extreme, the fixed take-up reel that is equipped with in first pivot lower extreme, the take-up reel goes up around being equipped with acts as go-between, terminal surface under the take-up reel with rotate the first torsional spring of fixedly connected with between the intracavity wall, be equipped with first slider chamber in the base up end, first slider chamber upper wall intercommunication is equipped with the ascending second slider chamber of opening, but first slider intracavity horizontal slip be equipped with first slider, but second slider intracavity horizontal slip be equipped with the second slider, second slider upper end fixed connection in terminal surface under the second is glued to cover, second slider lower extreme fixed connection in first slider up end.
5. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 1 wherein: the utility model discloses a switch, including first gluey lid, first switch, limiting groove, second rubber cover, limiting groove, first push rod, limiting groove, second rubber cover, limiting groove lower extreme intercommunication are equipped with the opening arc opening to the right, the fixed supporting shoe that is equipped with of second rubber cover up end, the fixed first push rod that is equipped with of supporting shoe left end face, the fixed gag lever post that is equipped with of first push rod left end, work as during the switch upset, both ends accessible around the gag lever post the arc opening gets into the limiting groove, and can in slide in the limiting groove, first rubber cover right-hand member face is equipped with the opening right slide bar chamber, but slide bar intracavity horizontal slip be equipped with right-hand member fixed connection in the slide bar of second rubber cover.
6. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 1 wherein: protection device is including locating ejector pad right-hand member face and opening fixture block chamber to the right, but fixture block intracavity horizontal slip be equipped with the right-hand member can extend outer fixture block, the fixture block with fixedly connected with third spring between the fixture block intracavity wall, ejector pad chamber right side wall intercommunication is equipped with the push rod chamber, the fixture block right-hand member can stretch into the push rod intracavity, but the push rod intracavity horizontal slip be equipped with the second push rod, the terminal surface right side is equipped with the tooth's socket that the opening is decurrent under the second push rod.
7. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 6 wherein: a third slide block cavity is arranged in the lower wall of the push rod cavity, a third slide block is arranged in the third slide block cavity and can slide left and right, a fourth spring is fixedly connected between the left end of the third slide block and the inner wall of the third slide block cavity, an alloy groove with an upward opening is arranged on the upper end surface of the third slide block, the front wall and the rear wall of the alloy groove are symmetrical and communicated with each other to form a slide groove, a fourth slide block with a front end extending into the slide groove and a rear end extending into the slide groove is arranged in the alloy groove and can slide left and right, a rack is fixedly arranged on the upper end surface of the fourth slide block, low-melting-point alloy is fixedly arranged in the alloy groove, the lower ends of the slide groove and the fourth slide block are positioned in the upper end surface of the low-melting-point alloy, an elastic heat conducting wire is arranged on the right side in the third slide block cavity, one, when the circuit is communicated with the rotating contact piece to generate heat, the elastic heat conducting wire can transfer heat to the low-melting-point alloy, and the low-melting-point alloy is melted so that the fourth sliding block can slide left and right.
8. A current overload protection blade for facilitating replacement of a fuse as claimed in claim 6 wherein: the push rod cavity with the intercommunication is equipped with the gear chamber between the third slider chamber, the rack upper end extends to in the gear chamber, rotatable second pivot that is equipped with between the wall around the gear chamber, fixed being equipped with in the second pivot mesh in the tooth's socket with the gear of rack, gear rear end face with fixedly connected with second torsional spring between the gear intracavity wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015791.0A CN111029200B (en) | 2020-01-07 | 2020-01-07 | Current overload protection switch blade convenient to change fuse |
| GBGB2007556.0A GB202007556D0 (en) | 2020-01-07 | 2020-05-21 | A current overload protection knife for easy replacement of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010015791.0A CN111029200B (en) | 2020-01-07 | 2020-01-07 | Current overload protection switch blade convenient to change fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111029200A true CN111029200A (en) | 2020-04-17 |
| CN111029200B CN111029200B (en) | 2020-11-06 |
Family
ID=70198698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010015791.0A Active CN111029200B (en) | 2020-01-07 | 2020-01-07 | Current overload protection switch blade convenient to change fuse |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111029200B (en) |
| GB (1) | GB202007556D0 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2533067A1 (en) * | 1982-09-09 | 1984-03-16 | Alsthom Cgee | Fast-breaking rotary control mechanism for an electric switch with several positions |
| CN2593341Y (en) * | 2002-12-16 | 2003-12-17 | 苏州宝时得电动工具有限公司 | Safety switch |
| CN108695100A (en) * | 2018-07-13 | 2018-10-23 | 高邮市电塑厂 | A kind of electric power knife switch of good airproof performance |
| CN109036902A (en) * | 2018-08-28 | 2018-12-18 | 方星 | A kind of novel circuit control device and its application method |
| CN109285721A (en) * | 2018-11-09 | 2019-01-29 | 绍兴上虞涌进环保科技有限公司 | A kind of gas insulated apparatus |
-
2020
- 2020-01-07 CN CN202010015791.0A patent/CN111029200B/en active Active
- 2020-05-21 GB GBGB2007556.0A patent/GB202007556D0/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2533067A1 (en) * | 1982-09-09 | 1984-03-16 | Alsthom Cgee | Fast-breaking rotary control mechanism for an electric switch with several positions |
| CN2593341Y (en) * | 2002-12-16 | 2003-12-17 | 苏州宝时得电动工具有限公司 | Safety switch |
| CN108695100A (en) * | 2018-07-13 | 2018-10-23 | 高邮市电塑厂 | A kind of electric power knife switch of good airproof performance |
| CN109036902A (en) * | 2018-08-28 | 2018-12-18 | 方星 | A kind of novel circuit control device and its application method |
| CN109285721A (en) * | 2018-11-09 | 2019-01-29 | 绍兴上虞涌进环保科技有限公司 | A kind of gas insulated apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111029200B (en) | 2020-11-06 |
| GB202007556D0 (en) | 2020-07-08 |
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Effective date of registration: 20200930 Address after: No. 1122 Yuanshen Road, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 200120 Applicant after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: No. 64, Shendu village, Dongfang Town, Jinyun County, Lishui City, Zhejiang Province Applicant before: Jinyun yepu Electronic Technology Co.,Ltd. |
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