The leakage tripping device operating mechanism
Technical field
The utility model relates to a kind of circuit breaker leakage tripping device operating mechanism of aggregate erection, is the improvement to existing circuit breaker leakage tripping device operating mechanism.
Background technology
The operating mechanism of existing circuit breaker leakage tripping device, as shown in Figure 1, be provided with button 2 ', rocking arm 3 ', slide plate 4 ' and push pedal 5 ' in the frame 1 ' of operating mechanism, described rocking arm 3 ' two ends respectively with described button 2 ' and described push pedal 5 ' interlock, described slide plate 4 ' is provided with main force's lever 7 ', described main force lever is provided with main force's spring 16 ', insert in the square hole of push pedal the upper end of main force's lever, can drive the left and right motion of push pedal, also be provided with lever 8 ', 9 ', 10 ' in this external frame, and:
--a relay 14 ' that is used to accept the residual current signal, described relay 14 ' is provided with push rod 19 ';
--one with described relay 14 ' upper ejector pin 19 ' be oppositely arranged release link 11 ';
--a snap close 13 ' that is oppositely arranged with described release link 11 ';
--a tripping 12 ', described tripping 12 ' forms the mechanical interlocking that can throw off with described snap close 13 '.
Press the button 2 ', button is stirred rocking arm 3 ', moves right thereby drive slide plate 4 '.The lever 7 ' that is installed on the slide plate 4 ' moves right thereupon, till slide plate 4 ' is hooked by lever 9 '.Lever 7 ' moves right in the process, and its lower end 21 ' is blocked by roller 18 ', forces lever 7 ' to make clockwise direction and rotates, and drives push pedal 5 ' and also moves right to the limit.This moment, push pedal 5 ' right-hand member withstood lever 8 ', thereby made lever 8 ' push down lever 10 ', and the following block 22 ' of lever 10 ' has been broken away from and the contacting of release link 11 '.
When relay 14 ' is subjected to residual current effect action, push rod 19 ' promotes release link 11 ' and drives snap close 13 ' rotation then, tripping 12 ' is threaded off, because spring 16 ' effect, the lower end 21 ' of lever 7 ' slips over roller 18 ', the bottom of the short column 17 ' shifting lever 9 ' on the lever 7 ' is threaded off the hook of lever 9 ' and slide plate 4 ', and slide plate 4 ', lever 7 ' and push pedal 5 ' be motion left together under the continuation effect of spring 16 ', sends " disconnection " instruction to circuit breaker.At this moment, lever 8 ' disengages with push pedal 5 '.Lever 10 ' resets under spring 15 ' effect, and following block 22 ' is pushed down release link 11 ' resets the push rod 19 ' of relay 14 '.This shows its structure more complicated.
Summary of the invention
To be solved in the utility model is the baroque problem of existing leakage tripping device operating mechanism, and a kind of follow-on leakage tripping device operating mechanism is provided.The technical scheme that addresses the above problem employing is: the leakage tripping device operating mechanism, be provided with button, rocking arm and push pedal in the frame, described rocking arm two ends respectively with described button and described push pedal interlock, described push pedal is provided with main force's lever, described main force lever is provided with main force's spring, also comprises:
--a relay that is used to accept the residual current signal, described relay is provided with push rod;
--one with described relay upper push-rod be oppositely arranged release link;
--a snap close that is oppositely arranged with described release link;
--a tripping, described tripping and described snap close form the mechanical interlocking that can throw off;
Its main feature is that described tripping is provided with short column and reduction torsion spring; Described main force lever upper end abuts against on the fixed axis, and the other end can done moving of certain limit between the set short column in the afterbody of tripping and the tripping; Described push pedal is provided with the pushing block that is coupled with described breaker tripping mechanism.
When relay receives electric leakage signal, set push rod promotes release link and then makes snap close do counterclockwise to rotate on it, snap close and tripping are threaded off, lever is swing left rapidly under the tension of main force's spring, depress tripping and drive push pedal, pushing block, make the circuit breaker tripping outage also rapidly to the tripping mechanism of left movement bump circuit breaker.
The advantage of the utility model design is to have shortened the Motion Transmission route, makes designs simplification.Not only significantly reduce number of spare parts, saved cost, also helped the reliability that improves action.
As further improvement of the utility model, the active force fulcrum of described main force spring action on main force's lever is positioned at the top of push pedal; Push pedal makes it to contact with described main force lever compact by extension spring.Described main force lever is installed on the arc surface of described push pedal, and can do gyration around it.The upper end of main force's lever is subjected to the acting in conjunction of main force's spring and fixed axis, and the upper end is abutted against on the fixed axis, can rotate around it and slide, and can not move as horizontal direction.
When main force's lever is subjected to the barrier effect of the short column in the tripping, tension main force spring, main force's lever is in the carrying position; And after tripping was threaded off, the front end of main force's lever slipped over short column and pushes down tripping again conversely, to overcome the effect of torsion spring to tripping.
Described tripping afterbody is the shaped as frame structure, and tripping is pushed down edge and change by the side of lever in the later stage at the bottom of the initial stage after the dropout is to push down tripping afterbody frame by the front end of main force's lever.
Release link is equipped with torque spring in advance, and when main force's lever was in unloading position, main force's leverage was in this torsion spring, thereby made release link give the relay push rod a suitable reset force.Described snap close is provided with reduction torsion spring, latches in also can make clockwise direction under the effect of torsion spring and rotate, and realizes the mechanical interlocking with tripping.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.From an example of the present utility model was illustrated, its additional advantage and feature will be more readily apparent from, and this example is only as a kind of limiting examples.In the accompanying drawing:
Fig. 1 is existing leakage tripping device operating mechanism structural representation;
Fig. 2 is the front view of the design's leakage tripping device operating mechanism, and release is in the close position;
Fig. 3 is a view identical with Fig. 2, and release is in trip position.
Embodiment
The structure of existing leakage tripping device operating mechanism shown in Figure 1 has been done simple introduction in the front of this explanation, no longer repeats.
With reference to Fig. 2, the leakage tripping device operating mechanism, be provided with button 4, Rocker arm 5 and push pedal 2 in the frame 1, described Rocker arm 5 two ends respectively with described button 4 and described push pedal 2 interlocks, described push pedal 2 can horizontal direction be slided in frame 1, pushing block 3 is installed on the axle 25 of push pedal 2, can with push pedal 2 interlocks, realize being coupled with breaker tripping mechanism.
Lever 6 is installed in the push pedal 2, can do gyration around the arc surface 14 of push pedal 2; Described main force lever 6 is provided with main force's spring 11, and main force's spring 11 acts on the top that active force fulcrum 12 on the lever 6 is positioned at push pedal 2, and push pedal 2 relies on springs 13 to make it closely to contact with lever 6.The upper end of lever 6 is subjected to the acting in conjunction of main force's spring 11 and fixed axis 15, and the upper end is abutted against on the fixed axis 15, can rotate around it and slide, and can not move as horizontal direction;
Also comprise:
--a relay 10 that is used to accept the residual current signal, described relay 10 is provided with push rod 23;
--one with described relay 10 upper push-rods 23 be oppositely arranged release link 7;
--a snap close 9 that is oppositely arranged with described release link 7;
--a tripping 8, described tripping 8 forms the mechanical interlocking that can throw off with described snap close 9;
Described tripping 8 is provided with short column 16 and reduction torsion spring 19; Described main force lever 6 upper ends abut against on the fixed axis 15, and the other end can done moving of certain limit between the set short column 16 in the afterbody of tripping 8 and the tripping 8;
When lever 6 is subjected to the barrier effect of the short column 16 in the tripping 8, tension main force spring 11, lever 6 is in the carrying position; And after tripping 8 was threaded off, the front end 17 of lever 6 slipped over short column 16 and pushes down tripping 8 again conversely, to overcome the effect of 19 pairs of trippings 8 of spring;
The afterbody of tripping 8 makes the shaped as frame structure, tripping 8 the initial stage after the dropout be to push down tripping 8 afterbody frames by the front end 17 of lever 6 at the bottom of 20, push down edge 21 and change by the side 18 of lever 6 in the later stage;
Restoring lever 7 is equipped with torque spring 22 in advance, and when lever 6 was in unloading position, lever 6 acted on torsion spring 22, thereby makes release link 7 give 23 1 suitable reset forces of relay push rod.
The action specification of leakage tripping device operating mechanism is as follows:
Leakage tripping device is in the close position (Fig. 2)
Leakage tripping device is in the close position by pressing the button 4 and realizes.Press the button 4, move right thereby rotate rocking arm drive push pedal 2; The lever 6 that is installed in the push pedal 2 overcomes the pulling force of main force's spring 11 along with push pedal 2 is swung to the right; In the swing process, its side 18 slips over the afterbody edge 21 of tripping 8 to lever 6 to the right, and its front end 17 slips at the bottom of the frame 20 subsequently, slips over short column 16 again to its right side; Tripping 8 is made clockwise direction and is rotated under the effect of torsion spring 19, snap close 9 is withdrawed from its end; Snap close 9 also can be made clockwise direction and rotate under the effect of torsion spring 24, realize and tripping 8 interlockings.Release button 4, lever 6 compress short column 16 under the tension of main force's spring 11.This moment, main force's spring 11 was in the energy storage state because tripping 8 and snap close 9 have been realized closed interlocking, and lever 6 just is fixed on this ultra-Right position motionless.
Leakage tripping device tripping operation (Fig. 3)
When relay 10 receives electric leakage signal, thereby its push rod 23 promotes release link 7 makes snap close 9 do counterclockwise to rotate, snap close 9 is threaded off with tripping 8, lever 6 is swing left rapidly under the tension of main force's spring 11, depress tripping 8 and drive push pedal 2, pushing block 3 also rapidly to the tripping mechanism of left movement bump circuit breaker, makes the circuit breaker tripping outage.Lever 6 drives torsion spring 22 in the swing process left, makes release link 7 push down push rod 23, and relay 10 resets.