CN206976234U - A kind of floor type handcart breaker - Google Patents

A kind of floor type handcart breaker Download PDF

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Publication number
CN206976234U
CN206976234U CN201720953402.2U CN201720953402U CN206976234U CN 206976234 U CN206976234 U CN 206976234U CN 201720953402 U CN201720953402 U CN 201720953402U CN 206976234 U CN206976234 U CN 206976234U
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CN
China
Prior art keywords
shell
cavity volume
face
moving contact
ventilating hole
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CN201720953402.2U
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Chinese (zh)
Inventor
孙宝李
吴建荣
徐国永
王召洋
吴春晖
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Shanghai Anyiji Enterprise Development Co ltd
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SHANGHAI AEG ENTERPRISE DEVELOPMENT Co Ltd
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Priority to CN201720953402.2U priority Critical patent/CN206976234U/en
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Abstract

The utility model provides a kind of floor type handcart breaker, belongs to breaker technical field.Including pole, pole includes shell, vacuum interrupter, moving contact, static contact and pull bar.Shell has first end face and second end face, and for vacuum interrupter in shell, the inside of shell is divided into the first cavity volume and the second cavity volume, the first cavity volume insertion first end face, the second cavity volume insertion second end face by vacuum interrupter.Moving contact is with static contact in vacuum interrupter.In the first cavity volume that pull bar is located at, pull bar is connected with moving contact.Shell is provided with upper junction block and lower junction block, upper junction block electrically connect with static contact, and lower junction block electrically connects with moving contact.Shell is provided with least one ventilating hole channel, and one end of ventilating hole channel connects with the first cavity volume, the other end insertion second end face of ventilating hole channel.Shell is provided with ventilating hole channel with the first accommodating chamber, and the heat in the first accommodating chamber can be shed by ventilating hole channel, have good radiating effect.

Description

A kind of floor type handcart breaker
Technical field
Breaker technical field is the utility model is related to, in particular to a kind of floor type handcart breaker.
Background technology
In power system, floor type handcart breaker is widely used as electric equipment.Existing floor type handcart breaks The pole of road device is because each parts between the housing of the pole of its vacuum interrupter, internal are by shell bag Wrap up in, shell wraps up for epoxy resin, and caused heat is obstructed by shell in pole, and heat is difficult to shed, and causes temperature liter Height, reduce the service life of breaker.
Utility model content
The purpose of this utility model is to provide a kind of floor type handcart breaker, to improve the heat inside pole Can not be shed problem.
What the utility model was realized in:
Based on above-mentioned purpose, the utility model provides a kind of floor type handcart breaker, including pole, pole Including shell, vacuum interrupter, moving contact, static contact and pull bar;
Shell has first end face and second end face, and vacuum interrupter is in shell, and vacuum interrupter is by shell Part is divided into the first cavity volume and the second cavity volume, the first cavity volume insertion first end face, the second cavity volume insertion second end face;
Moving contact is with static contact in vacuum interrupter;
In the first cavity volume that pull bar is located at, pull bar is connected with moving contact;
Shell is provided with upper junction block and lower junction block, upper junction block electrically connect with static contact, lower junction block and moving contact Electrical connection;
Shell is provided with least one ventilating hole channel, and one end of ventilating hole channel connects with the first cavity volume, ventilating hole channel it is another One end penetrates second end face.
Further, ventilating hole channel has inlet and outlet, and import connects with the first cavity volume, and the section of ventilating hole channel is from entering Mouth gradually increases to outlet.
Further, ventilating hole channel is taper hole.
Further, pole also includes locating part and the first conducting rod;
First conducting rod is connected with moving contact, and the first conducting rod electrically connects with upper junction block;
Shell is formed to be extended in ring part to the ring part protruded inside the second cavity volume, the first conducting rod, and first is conductive Bar is connected with locating part, and locating part contacts with ring part, to prevent static contact from being moved to the direction close to moving contact.
Further, locating part includes heat carrier and locking member, and heat carrier contacts with ring part, the first conducting rod and heat conduction Body is connected by locking member.
Further, protective cover is provided with vacuum extinction room, moving contact is respectively positioned in protective cover with static contact.
Based on above-mentioned purpose, the utility model provides a kind of floor type handcart breaker, including transmission mechanism and at least one Individual pole;
Pole includes shell, vacuum interrupter, moving contact, static contact and pull bar;
Shell has first end face and second end face, and vacuum interrupter is in shell, and vacuum interrupter is by shell Part is divided into the first cavity volume and the second cavity volume, the first cavity volume insertion first end face, the second cavity volume insertion second end face;
Moving contact is with static contact in vacuum interrupter;
In the first cavity volume that pull bar is located at, pull bar is connected with moving contact;
Shell is provided with upper junction block and lower junction block, upper junction block electrically connect with static contact, lower junction block and moving contact Electrical connection;
Shell is provided with least one ventilating hole channel, and one end of ventilating hole channel connects with the first cavity volume, ventilating hole channel it is another One end penetrates second end face.
Transmission mechanism includes matrix, rotating shaft, at least one executing agency and at least one resetting means;
Pole corresponds with executing agency, and shell is fixed on matrix;
Rotating shaft is rotatablely connected with matrix;
Rotating shaft is connected with pull bar by executing agency, and rotating shaft is used to drive executing agency to act, so that pull bar opposite shell Motion;
Resetting means corresponds with executing agency, and resetting means is used to reset executing agency and rotating shaft.
Further, buffer unit is provided between rotating shaft and matrix, buffer unit has the trend for preventing rotating shaft return.
Further, buffer unit includes the first pivoted arm and buffer, and one end and the rotating shaft of the first pivoted arm are fixed, first turn The other end of arm is hinged with buffer.
Further, buffer includes housing and piston rod, and piston rod can slide axially with respect to housing;
Housing is fixed on matrix, and enclosure interior forms conical cavity, buffer medium is provided with conical cavity;
Piston rod includes the body of rod and piston, and one end of the body of rod is connected with piston, and the other end of the body of rod is extended to outside housing simultaneously It is hinged with the first pivoted arm, piston can extend in conical cavity;
When piston rod slides with respect to housing to first direction, the gap between the chamber arm of piston and conical cavity is gradually reduced.
The beneficial effects of the utility model are:
The utility model provides a kind of floor type handcart breaker, in use, caused heat will pass in vacuum interrupter It is delivered to the first accommodating chamber and the second accommodating chamber.Because shell is provided with ventilating hole channel with the first accommodating chamber, in the first accommodating chamber Heat can be shed by ventilating hole channel, so as to realize the radiating to whole pole, to improve the service life of breaker. Further, since ventilating hole channel runs through second end face, ventilating hole channel is by by the position where vacuum interrupter, vacuum interrupter The partial heat being delivered to by locular wall on housing can also be taken out of by the air in ventilating hole channel, this arrangement of ventilating hole channel Mode improves the radiating effect to pole.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the pole that the utility model embodiment 1 provides;
Fig. 2 is the shell mechanism schematic diagram shown in Fig. 1;
Fig. 3 is the structural representation for the floor type handcart breaker that the utility model embodiment 2 provides;
Fig. 4 is the structural representation of the transmission mechanism shown in Fig. 3;
Fig. 5 is the structural representation of the buffer shown in Fig. 4;
Fig. 6 is the structural representation of the piston shown in Fig. 5;
Fig. 7 is the structural representation of the transmission mechanism removal matrix shown in Fig. 3;
Fig. 8 is the structural representation of the linking arm shown in Fig. 7;
Fig. 9 is the structural representation of the connecting lever shown in Fig. 7.
Icon:100- poles;10- shells;11- first end faces;12- second end faces;The cavity volumes of 13- first;14- second Cavity volume;15- ring parts;The upper junction blocks of 16-;Junction block under 17-;18- ventilating hole channels;181- imports;182- is exported;20- vacuum Arc-chutes;21- protective covers;30- moving contacts;40- static contacts;50- pull bars;The conducting rods of 51- second;52- insulating bars;60- first Conducting rod;70- locating parts;71- heat carriers;72- locking members;80- bellowss;200- breakers;300- transmission mechanisms;310- bases Body;320- rotating shafts;330- buffer units;The pivoted arms of 331- first;332- buffers;3321- housings;3322- outer cylinder bodies;3323- Inner barrel;3324- conical cavities;3325- piston rods;The 3326- bodies of rod;3327- pistons;3328- grooves;3329- first ends; The ends of 3330- second;3331- closeouts;3332- back-moving springs;340- executing agencies;The pivoted arms of 341- second;342- linking arms; 3421- driving sections;3422- connecting portions;343- connecting levers;The kinks of 3431- first;The kinks of 3432- second;344- performs arm; 350- resetting means;351- dynamic clamping head and quiet clamping heads;352- adjusting parts;3521- screw rods;3522- nuts;353- rotors.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can To be mutually combined.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to which explanation, indicating position or position relationship are based on accompanying drawing in the description of the utility model embodiment Shown orientation or position relationship, or the utility model product using when the orientation usually put or position relationship, or The orientation or position relationship that those skilled in the art usually understand, or the utility model product using when usually put Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, term " first ", " second " are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the utility model embodiment, it is also necessary to explanation, unless otherwise clearly defined and limited, art Language " setting ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or It is integrally connected;Can be directly connected to, can also be indirectly connected with by intermediary.For one of ordinary skill in the art For, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of pole 100, including shell 10, vacuum interrupter 20, moving contact 30th, static contact 40, pull bar 50, the first conducting rod 60 and locating part 70.
Wherein, the material of shell 10 is epoxy resin.As shown in Fig. 2 shell 10 is generally cylindrical, shell 10 is opened for both ends Mouth structure, the short transverse of shell 10 have two end faces, respectively first end face 11 and second end face 12.Vacuum interrupter 20 It is fixed in shell 10, the protective cover 21 of both ends open is provided with vacuum extinction, protective cover 21 is fixed in vacuum interrupter 20. After vacuum interrupter 20 is fixed with shell 10, vacuum interrupter 20 will be separated into the first cavity volume 13 and second inside shell 10 holds Chamber 14, the first cavity volume 13 and the second cavity volume 14 distinguish the both sides of vacuum interrupter 20 in the short transverse of shell 10.First holds Chamber 13 is located at the downside of vacuum interrupter 20, and the first cavity volume 13 penetrates first end face 11, and the second cavity volume 14 is located at vacuum extinction The upside of room 20, the second cavity volume 14 penetrate second end face 12.Housing 3321 is formed to the annular protruded inside the second cavity volume 14 Portion 15, ring part 15 are internally formed a through hole.
Shell 10 is provided with upper junction block 16 and lower junction block 17.Upper junction block 16 is located at the upside of vacuum interrupter 20, Upper junction block 16 is extended in ring part 15, i.e., upper junction block 16 is partially located in the through hole in ring part 15;Lower junction block 17 Positioned at the downside of vacuum interrupter 20, lower junction block 17 is extended in the first cavity volume 13.
In addition, be additionally provided with ventilating hole channel 18 on shell 10, vent passages can be one or multiple.Air vent The one end in road 18 connects with the first cavity volume 13, and the other end of ventilating hole channel 18 runs through second end face 12, that is to say, that first holds Chamber 13 is in communication with the outside by ventilating hole channel 18.Ventilating hole channel 18 has import 181 and outlet 182, and import 181 is air vent One end that road 18 connects with the first cavity volume 13, the as ventilating hole channel 18 of outlet 182 penetrate one end of second end face 12, ventilating hole channel 18 section is from import 181 to the gradually increase of outlet 182.In the present embodiment, ventilating hole channel 18 is along the short transverse cloth of shell 10 The taper hole put.
As shown in figure 1, static contact 40 is located in protective cover 21, the one end of the first conducting rod 60 is connected with static contact 40, first The other end of conducting rod 60 passes vacuum interrupter 20 and extended in ring part 15, i.e., the first conducting rod 60 is partially located at annular In through hole in portion 15.The part that upper junction block 16 is extended in ring part 15 is set in the outside of the first conducting rod 60, with reality The now electrical connection of upper junction block 16 and static contact 40.First conducting rod 60 is tightly connected with vacuum interrupter 20, the first conducting rod Positioning is formed between 60 and vacuum interrupter 20.After being positioned between first conducting rod 60 and vacuum interrupter 20, the first conducting rod 60 can not relative vacuum arc-chutes 20 move upwards.
The heat carrier 71 of locating part 70 and locking member 72, heat carrier 71 are the preferable metal material of heat conductivility, locking member 72 For screw.Heat carrier 71 is located in the second cavity volume 14, and heat carrier 71 is located at the upside of ring part 15, and heat carrier 71 and first is conductive Bar 60 is connected by screw locking, the upper contact of heat carrier 71 and ring part 15, and ring part 15 will prevent heat carrier 71 downward Motion, so as to prevent static contact 40 from moving downward, the fixation of final static contact 40.
Pull bar 50 includes the second conducting rod 51 and insulating bar 52, and one end of the second conducting rod 51 is connected with moving contact 30, moves Contact 30 is located in protective cover 21, and one end of the second conducting rod 51 is located at through vacuum interrupter 20 extends to the first cavity volume 13 It is interior.Second conducting rod 51 is tightly connected with vacuum interrupter 20 by bellows 80.Second conducting rod 51 is away from moving contact 30 One end is connected with one end of insulating bar 52, and the other end of insulating bar 52 is extended to outside housing 3321.Lower junction block 17 is led with second Electric pole 51 is connected by conductive sleeve, and conductive sleeve is set in the outside of the second conducting rod 51, and lower junction block 17 is fixed with conductive sleeve, with Realize the electrical connection of lower junction block 17 and movable contact.When being moved down after insulating bar 52 is by external force, moving contact 30 also will be with Motion, moving contact 30 will separate with static contact 40, and upper junction block 16 will be switched off with lower junction block 17;When insulating bar 52 is by outer When being moved up after power, motion will contact moving contact 30 with static contact 40 upwards, and upper junction block 16 turns on lower junction block 17.It is dynamic Contact head is separated with quiet contact head, caused electric arc will be off in vacuum interrupter 20 in contact process, moving contact 30 It is respectively positioned on static contact 40 in protective cover 21, protective cover 21 can play a protective role to vacuum interrupter 20, avoid vacuum extinction Burnt room 20.
In actual use, the lower end of pole 100 will be connected with miscellaneous part, and the opening of the lower end of shell 10 will be sealed It is stifled.Caused heat can be shed by ventilating hole channel 18 in vacuum interrupter 20.Because ventilating hole channel 18 runs through second end face 12, ventilating hole channel 18 will be delivered to housing 3321 by the position where vacuum interrupter 20, vacuum interrupter 20 by locular wall On partial heat can also be taken out of by the air in ventilating hole channel 18, to reach more preferable radiating effect.In addition, locating part 70 With certain heat conduction can, the heat in heat and the second cavity volume 14 on the first conducting rod 60 can be transmitted by locating part 70 In the external world.Further, since the section of ventilating hole channel 18 is easy to the gas of outside to pass through from import 181 to the gradually increase of outlet 182 Vent passages 18 enter the first cavity volume 13, further increase heat dispersion.
Embodiment 2
As shown in figure 3, the present embodiment provides a kind of floor type handcart breaker 200, including transmission mechanism 300 and at least one Pole 100 in individual above-described embodiment.
Wherein, as shown in figure 4, transmission mechanism 300 includes matrix 310, rotating shaft 320, buffer unit 330, at least one held Row mechanism 340 and at least one resetting means 350.Rotating shaft 320 is rotatablely connected with matrix 310, and rotating shaft 320 is used to drive execution machine Structure 340 acts, and resetting means 350 corresponds with executing agency 340, and resetting means 350 is used to make executing agency 340 and rotating shaft 320 reset.Pole 100 corresponds with executing agency 340.
Wherein, matrix 310 is body structure, the effect of other connecting components.
Rotating shaft 320 is power input part, and rotating shaft 320 is rotatablely connected with matrix 310, and rotating shaft 320 can be with respect to matrix 310 Rotated around the axis of itself.
Buffer unit 330 includes the first pivoted arm 331 and buffer 332, and buffer 332 passes through the first pivoted arm with rotating shaft 320 331 connections, rotating shaft 320, which rotates, will drive the first pivoted arm 331 to rotate so that buffer 332 acts, and buffer 332, which has, to be prevented The trend of the return of rotating shaft 320.
In the present embodiment, as shown in figure 5, buffer 332 includes housing 3321 and piston rod 3325, piston rod 3325 and shell Body 3321 is slidably connected.Specifically, housing 3321 includes outer cylinder body 3322 and inner barrel 3323.Outer cylinder body 3322 is open top Structure.The internal diameter of the external diameter of inner barrel 3323 and inner barrel 3323 matches, and inner barrel 3323 is both ends open structure, inner barrel 3323 inside are provided with taper hole, and the one end open of inner barrel 3323 is big, and another end opening is small.Inner barrel 3323 is located at outer cylinder body 3322 Interior, inner barrel 3323 is fixed with outer cylinder body 3322.After inner barrel 3323 is in outer cylinder body 3322, the taper hole of inner barrel 3323 Hole wall and the inwall of the bottom of outer cylinder body 3322 limit conical cavity 3324 jointly.Piston rod 3325 includes the body of rod 3326 and piston 3327.As shown in fig. 6, piston 3327 is cylinder, the periphery of piston 3327 is provided with multiple grooves 3328, all grooves 3328 circle distributions are on the periphery of piston 3327, and groove 3328 penetrates the both ends of the axial direction of piston 3327, and piston 3327 is axially On both ends be respectively the end 3330 of first end 3329 and second, groove 3328 piston 3327 depth radially along first end The direction at the 3329 to the second end 3330 gradually increases.As shown in figure 5, one end of the body of rod 3326 and the first end 3329 of piston 3327 Connection.In other specific embodiments, the groove 3328 on the periphery of piston 3327 may be alternatively provided as one.
When piston rod 3325 is installed with housing 3321, piston rod 3325 is slided with housing 3321 by closeouts 3331 to be connected Connect, i.e., closeouts 3331 are arranged in outer cylinder body 3322, and block the opening at the top of outer cylinder body 3322, and closeouts 3331 are set in The outside of the body of rod 3326 of piston rod 3325.Piston rod 3325 can slide axially with respect to housing 3321, can both slide axially upwards It is dynamic, can axially downwardly it slide again, the direction that piston rod 3325 axially downwardly slides is first direction, the piston of piston rod 3325 The direction at 3327 end of first end 3329 to the second 3330 is also first direction.Piston rod 3325 is slidably connected with housing 3321 Afterwards, the one end of the body of rod 3326 of piston rod 3325 away from piston 3327 is located at outside housing 3321, the piston 3327 of piston rod 3325 In housing 3321, back-moving spring 3332 is provided between piston 3327 and outer cylinder body 3322, the taper inside housing 3321 It is provided with buffer medium in chamber 3324, in the present embodiment, buffer medium is fluid.Piston rod 3325 is with respect to housing 3321 to first party To sliding piston 3327 can be made to extend in conical cavity 3324, the gap between the chamber arm of piston 3327 and conical cavity 3324 will be by It is tapered small.When the body of rod 3326 of piston rod 3325 is by external force, piston rod 3325 will slide with respect to housing 3321, slide Because the gap between the chamber arm of piston 3327 and conical cavity 3324 is gradually reduced in journey so that piston rod 3325 is with respect to housing 3321 The speed of slip will be reduced gradually, so as to have the function that buffering.Lead to further, since the piston 3327 of piston rod 3325 is provided with Groove 3328, groove 3328 gradually increase in direction of the depth radially along the end of first end 3329 to the second 3330 of piston 3327 Greatly so that flowing velocity of the buffer medium in groove 3328 in conical cavity 3324 can change, and it is whole to be advantageous to lifting The shock-absorbing capacity of buffer 332.In other specific embodiments, the structure of buffer 332 may also be other structures form.
As shown in fig. 7, one end of the first pivoted arm 331 is fixed with rotating shaft 320, the other end and buffer of the first pivoted arm 331 332 body of rod 3326 is be hinged, and the outer stack shell and matrix 310 (Fig. 7 is not shown) of buffer 332 are fixed.When rotating shaft 320 rotates and makes During 331 compression piston bar 3325 of the first pivoted arm, buffer 332 can countershaft 320 play cushioning effect.In the present embodiment, to increase The buffering effect of strong countershaft 320, is provided with two buffer units 330, two buffer units between rotating shaft 320 and matrix 310 330 in the axial direction of rotating shaft 320 arranged for interval.
In the present embodiment, executing agency 340 is three, and three executing agencies 340 are spaced in the axial direction of rotating shaft 320 to be divided Cloth.One buffer unit 330 is set between two adjacent executing agencies 340.Resetting means 350 is also three, and three reset dress 350 are put to be spaced apart in the axial direction of rotating shaft 320.
Specifically, executing agency 340 includes the second pivoted arm 341, linking arm 342, connecting lever 343 and performs arm 344.Wherein, As shown in figure 8, linking arm 342 includes driving section 3421 and connecting portion 3422, driving section 3421 and connecting portion 3422 are tabular Structure, one end connection and the centre position on the length direction of driving section 3421 of connecting portion 3422, connecting portion 3422 is perpendicular to biography Dynamic portion 3421.As shown in figure 9, connecting lever 343 includes the first kink 3431 and the second kink 3432 of structure V-arrangement, the first bending The length in portion 3431 is consistent with the length of the second kink 3432.As shown in Fig. 4, Fig. 7, one end of the second pivoted arm 341 and rotating shaft 320 fix, and the other end of the second pivoted arm 341 and one end of the driving section 3421 of linking arm 342 be hinged, driving section 3421 it is another End is hinged with the one end of the first kink 3431 of connecting lever 343 away from the second kink 3432, and the second kink 3432 is away from the One end of one kink 3431 is hinged with performing arm 344, centre position (the first kink 3431 and the second bending of connecting lever 343 The junction in portion 3432) it is be hinged with matrix 310.
Resetting means 350 includes dynamic clamping head and quiet clamping head 351, adjusting part 352 and rotor 353.Wherein, dynamic clamping head and quiet clamping head 351 be spring;Adjusting part 352 includes screw rod 3521 and nut 3522;Rotor 353 is bearing pin, and rotor 353, which is provided with, to be supplied The through hole that screw rod 3521 passes through.The connecting portion 3422 of rotor 353 and linking arm 342 is rotatablely connected, i.e., rotor 353 can be relative Connecting portion 3422 rotates around the axis of itself, and rotor 353 is relative to the diameter parallel that linking arm 342 rotates in the phase of linking arm 342 The axis rotated to the second pivoted arm 341.Screw rod 3521 is arranged in the through hole on rotor 353, and nut 3522 is screwed onto screw rod On 3521.One end of dynamic clamping head and quiet clamping head 351 is connected with matrix 310, and the other end of dynamic clamping head and quiet clamping head 351 is connected with screw rod 3521, In the presence of dynamic clamping head and quiet clamping head 351, nut 3522 contradicts with rotor 353, to prevent the both ends of dynamic clamping head and quiet clamping head 351 mutual It is close.By the relative position of adjusting nut 3522 and screw rod 3521, the distance at the both ends of dynamic clamping head and quiet clamping head 351 can be changed, so as to Realize and the elastic force of dynamic clamping head and quiet clamping head 351 is adjusted.In addition, when linking arm 342 is between the second pivoted arm 341 and connecting lever 343 During motion, rotor 353 will rotate relative to linking arm 342, to change the direction of dynamic clamping head and quiet clamping head 351, ensure dynamic clamping head and quiet clamping head 351 are in straight state all the time so that dynamic clamping head and quiet clamping head 351 is in preferable extended state all the time.
Pole 100 three in the present embodiment, axially spaced-apart distribution of three poles 100 along rotating shaft 320, Gu Sealed pole 100 is corresponding with executing agency 340, as shown in figure 3, the lower end of the shell 10 of pole 100 is fixed on matrix 310 Top, the insulating bar 52 of the pull bar 50 in pole 100 is be hinged with performing arm 344.When rotating shaft 320 by external force to one When direction rotates, it will move downward pull bar 50 by executing agency 340, so that moving contact 30 separates with static contact 40.When After external force in rotating shaft 320 removes, in the presence of dynamic clamping head and quiet clamping head 351, whole executing agency 340 and rotating shaft 320 all will be multiple Position, the first pivoted arm 331 will move downward piston rod 3325, and now, buffer 332 plays cushioning effect, avoids entirely being driven Rigid shock occurs for mechanism 300, increases service life.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model, Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of floor type handcart breaker, it is characterised in that including pole, the pole includes shell, vacuum Arc-chutes, moving contact, static contact and pull bar;
The shell has first end face and second end face, and the vacuum interrupter is in the shell, the vacuum extinction The inside of the shell is divided into the first cavity volume and the second cavity volume by room, and first cavity volume penetrates the first end face, described Second cavity volume penetrates the second end face;
The moving contact is with the static contact in the vacuum extinction room;
The pull bar is located in the first described cavity volume, and the pull bar is connected with the moving contact;
The shell is provided with upper junction block and lower junction block, and the upper junction block is electrically connected with the static contact, connect under described Line seat electrically connects with the moving contact;
The shell is provided with least one ventilating hole channel, and one end of the ventilating hole channel connects with first cavity volume, described The other end of ventilating hole channel penetrates the second end face.
2. floor type handcart breaker according to claim 1, it is characterised in that the ventilating hole channel has import and gone out Mouthful, the import connects with first cavity volume, and the section of the ventilating hole channel is from the import to the outlet gradually increase.
3. floor type handcart breaker according to claim 2, it is characterised in that the ventilating hole channel is taper hole.
4. floor type handcart breaker according to claim 1, it is characterised in that the pole also includes locating part With the first conducting rod;
First conducting rod is connected with the moving contact, and first conducting rod electrically connects with the upper junction block;
The shell forms to the ring part protruded inside second cavity volume, first conducting rod and extends the ring part Interior, first conducting rod is connected with the locating part, and the locating part contacts with the ring part, to prevent the static contact Moved to the direction close to the moving contact.
5. floor type handcart breaker according to claim 4, it is characterised in that the locating part includes heat carrier and lock Tight part, the heat carrier are contacted with the ring part, and first conducting rod is connected with the heat carrier by the locking member.
6. according to the floor type handcart breaker described in claim any one of 1-5, it is characterised in that in the vacuum extinction room Provided with protective cover, the moving contact is respectively positioned in the protective cover with the static contact.
7. a kind of floor type handcart breaker, it is characterised in that including transmission mechanism and at least one pole;
The pole includes shell, vacuum interrupter, moving contact, static contact and pull bar;
The shell has first end face and second end face, and the vacuum interrupter is in the shell, the vacuum extinction The inside of the shell is divided into the first cavity volume and the second cavity volume by room, and first cavity volume penetrates the first end face, described Second cavity volume penetrates the second end face;
The moving contact is with the static contact in the vacuum extinction room;
The pull bar is located in the first described cavity volume, and the pull bar is connected with the moving contact;
The shell is provided with upper junction block and lower junction block, and the upper junction block is electrically connected with the static contact, connect under described Line seat electrically connects with the moving contact;
The shell is provided with least one ventilating hole channel, and one end of the ventilating hole channel connects with first cavity volume, described The other end of ventilating hole channel penetrates the second end face;
The transmission mechanism includes matrix, rotating shaft, at least one executing agency and at least one resetting means;
The pole corresponds with the executing agency, and the shell is fixed on described matrix;
The rotating shaft is rotatablely connected with described matrix;
The rotating shaft is connected with the pull bar by the executing agency, and the rotating shaft is used to drive the executing agency to act, So that the relatively described shell motion of the pull bar;
The resetting means corresponds with the executing agency, and the resetting means is used to make the executing agency and described turn Axle resets.
8. floor type handcart breaker according to claim 7, it is characterised in that be provided between the rotating shaft and described matrix Buffer unit, the buffer unit have the trend for preventing the rotating shaft return.
9. floor type handcart breaker according to claim 8, it is characterised in that the buffer unit includes the first pivoted arm And buffer, one end and the rotating shaft of first pivoted arm are fixed, the other end and the buffer of first pivoted arm are cut with scissors Connect.
10. floor type handcart breaker according to claim 9, it is characterised in that the buffer includes housing and work Stopper rod, the piston rod can relatively described housing slide axially;
The housing is fixed on described matrix, and the enclosure interior forms conical cavity, buffer medium is provided with the conical cavity;
The piston rod includes the body of rod and piston, and one end of the body of rod is connected with the piston, and the other end of the body of rod prolongs Extend outside the housing and be hinged with first pivoted arm, the piston can extend in the conical cavity;
When the piston rod slides with respect to housing to first direction, gap between the chamber arm of the piston and the conical cavity by It is tapered small.
CN201720953402.2U 2017-08-02 2017-08-02 A kind of floor type handcart breaker Active CN206976234U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192601A (en) * 2018-09-29 2019-01-11 杭州佰盟智能开关有限公司 A kind of breaker closing spring secondary buffer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192601A (en) * 2018-09-29 2019-01-11 杭州佰盟智能开关有限公司 A kind of breaker closing spring secondary buffer device

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