CN2864964Y - Operating mechanism for control and protection switch appliance - Google Patents

Abstract

An operation mechanism which controls and protects switch appliances comprises an installation panel, wherein a pyromagnetic electrical apparatus release, a major circuit contact assembly, an electromagnetic actuating mechanism, a handspike in parallel with an insulate mechanism, a pusher, a rocker and a brace, and a shell on which an automatic control position, a tripping position, a segmentation position, a restoration position and an insulate position are marked. A manual indication button which can be respectively equipped in the automatic control position, the tripping position, the segmentation position, the restoration position and the insulate position is provided. A side cam, a deflecting cam, an intermediate cam, an intermediate chock, a side chock and a spring are also equipped in the installation panel. This utility model is applied by the KBO control and protection switch appliances to achieve fire protection function, namely to achieve non-deflection but warning of the overload and overflow. This utility model achieves the function of deflection of open circuit and breaking off of the major circuit without assistant contact concatenation, thereby providing direct manual control and a plurality of conveniences for operation and maintenance.

Description

The operating mechanism of a kind of control and protection switch electrical equipment

One, affiliated technical field

The utility model belongs to control and the protection switch electrical equipment in the low-voltage electrical apparatus field, or rather, is a kind of have the KB0 control of fire-fighting function and operating mechanism of protection switch electrical equipment.

Two, background technology

" control and protection switch electrical equipment " (control protector) is the novel product in the low-voltage electrical apparatus, and as new big series products, its product category code name is " CPS ", is the abbreviation of English " Control and ProtectiveSwitching Device ".The principal character of CPS is: realize control and defencive function integrated, that internal coordination cooperates on the product of single structure form, can substitute multiple traditional separating components such as circuit breaker (fuse), contactor, overload (or overcurrent, the phase failure) protection relay, starter, isolator.KB0 is the big series products of first generation CPS.KB0 is mainly used in the electric current that exchanges under the overload condition that 50Hz (60Hz), rated voltage comprise regulation to 690V, electric current connection in the electric power system of 0.16A to 100A, carrying and the disjunction normal condition, and can connect, carry and the non-normal condition of disjunction regulation under electric current (as short circuit current).KB0 adopts modular single product structural shape; the major function of integrated traditional circuit breaker (fuse), contactor, overload (or overcurrent, the phase failure) protection relay, starter, isolator etc.; have far distance automatic controlling and direct on the spot manpower controlled function; have panel indication and dynamoelectric signal warning function, have cooperation time-current protection characteristic (having inverse time lag, specified time and instantaneous three section protection characteristic).Match functional module or annex as required, can realize the motor load of general (not Fraquent start), the motor load of Fraquent start, the control and the protection of power distribution circuit load.

Once open " a kind of integrated control and protection switch the electrical equipment " (ZL01238478.X of Chinese patent; CN2472341Y; January 16 2002 day for announcing); its operating mechanism that adopts is equipped with push rod, push pedal, driving lever, pull bar and is associated with overcurrent trip, main circuit contact group, electromagnetism transmission mechanism, interrupter respectively; and there are manually operated indication knob, this knob can place automatic control position (Auto), dropout position (Trip), disjunction position (Off), reset position (Reset) and isolated location (O) respectively.Because the structure problem of its operating mechanism, it does not have fire-fighting function.

Fire control type KB0 control mainly is made up of parts such as electromagnetism transmission mechanism, operating mechanism, main circuit contact group (short-circuit release), thermo magnetic trip release devices with protection switch; be mainly used in and exchange 50Hz (60Hz), the electric current under the overload condition that comprises regulation under the normal condition is connected and carried to rated voltage to 690V, electric current in the fire-fighting system important load of 0.16A to 100A, and the electric current of (short circuit) under can the disjunction non-normal condition.And can be implemented in overload, overcurrent, following warning of phase failure condition, do not trip; Under short circuit condition, report to the police and tripping operation.As fire pump, when putting out a fire, be not allow water pump tripping operation when overload, overcurrent or the phase failure appear in water pump in the scene of fire, can send signal alarm, but just must tripping operation when short circuit occurring, and report to the police.Existing fire control type control mainly realizes by the auxiliary contact of connecting with the protection switch operating mechanism; promptly the pair of control contact of switch inside is connected in series to and is used on the short-circuit alarming contact; this auxiliary contact is normally closed; when switch detected short circuit current, auxiliary contact was disconnected by normally closed point, disconnects main circuit with this; because the control contact is to receive on the short-circuit alarming contact; so when product detected non-short trouble, auxiliary contact did not disconnect, main circuit still is in on-state.This fire control type is controlled the following shortcoming that exists with the protection switch operating mechanism: (1) can not manually be controlled on the spot; promptly can not realize controlling the break-make of main circuit by joystick; button control or Long-distance Control have brought very big trouble for the operation and maintenance of product on the spot.(2) the wiring circuit is more loaded down with trivial details, has reduced the global reliability of product.

Three, utility model content

The purpose of this utility model is to provide the operating mechanism of a kind of control with protection switch electrical equipment; use it and realize controlling the function that realizes fire-fighting with protection switch electrical equipment; promptly can realize overload, an overcurrent alarm non-tripping; the function of dropout and disconnection main circuit when opening circuit; the auxiliary contact of need not connecting; directly manually control on the spot provides many facilities to operation and maintenance.

For achieving the above object; The solution that the utility model is taked is: a kind of operating mechanism of control and protective switching device; It comprises installing plate and face-piece; Sign has automatic control position on the face-piece; The dropout position; The disjunction position; Reset position and isolated location; Being equipped with in the installing plate can be respectively and the Pyromagnetic release of KB0 control and protective switching device; Main circuit contact group; Electromagnetism transmission mechanism; The push rod of interrupter parallel connection; Push pedal; Rocking arm; Pull bar; And manually operated indicating knob arranged; This indicating knob can place respectively automatic control position; The dropout position; The disjunction position; Reset position and isolated location; The side cam also is housed in the installing plate; The tripping cam; Cam; Middle retainer; The side retainer; Spring; The manual operation indicating knob by the dropout position to reset position; In rotary course; Cam is followed indicating knob and is done together and be rotated counterclockwise; And promotion side cam is done reverse rotation; Promote the tripping cam by the side cam again and do rotating Vortex; Behind indicating knob operation certain angle; By the extremely automatic control position of reset position; In this process; Because the effect of reaction spring; So that side cam and tripping cam back move; Stop its motion by the side retainer this moment; So that the spring of side cam and tripping cam produces energy storage; When indicating knob operates automatic control position; Middle retainer is under the reaction spring effect; Fasten cam; Can enough rest on automatic control position; Simultaneously, end device processed and promote rocking arm work.

Because rocking arm is in parallel with the electromagnetism transmission mechanism of protection switch electrical equipment with KB0 control, make KB0 control and protection switch electrical equipment realize the purpose of control.The present invention adopts three cam mechanisms and adopts the double-deck design of threading off; make KB0 control have the function of fire-fighting with protection switch electrical equipment; promptly can realize overload, an overcurrent alarm non-tripping; the function of dropout and disconnection main circuit when opening circuit; the auxiliary contact of need not connecting; directly manually control on the spot provides many facilities to operation and maintenance.Easy to operate, improved global reliability and the use flexibility of KB0 control to a certain extent with the protection switch electric equipment products.

Four, description of drawings

Fig. 1 is the stereogram of present embodiment.

Fig. 2 is the front view of present embodiment.

Fig. 3 is the rearview of present embodiment.

Fig. 4 is that the face-piece of present embodiment cooperates schematic diagram with the indication knob.

Fig. 5 is that the tripping cam of present embodiment is buckled in the schematic diagram on the side retainer.

Fig. 6 is that the side cam of present embodiment is buckled in the schematic diagram on the side retainer.

Fig. 7 is the schematic diagram that the middle retainer of present embodiment fastens cam.

Fig. 8 is the schematic diagram that the tripping cam of present embodiment fastens cam.

Fig. 9 is the side cam of present embodiment and the schematic diagram that the side retainer is threaded off.

Figure 10 is that the tripping cam of present embodiment is buckled in the schematic diagram on the side retainer.

Figure 11 is the side cam of present embodiment and the schematic diagram that the side retainer is threaded off.

Figure 12 is the tripping cam of present embodiment and the schematic diagram that the side retainer is threaded off.

Figure 13 is the schematic diagram of retainer during the cam of present embodiment is backed down.

Among the figure: 1, mounting panel, 2, the side cam, 3, the tripping cam, 4, cam, 5, middle retainer, 6, the side retainer, 7, push pedal, 8, push rod, 9, rocking arm, 10, pull bar, 11, the indication knob, 12, face-piece.

Five, embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Referring to Fig. 1-Fig. 4; A kind of operating mechanism of control and protective switching device; It comprises installing plate 1 and face-piece 12; Sign has automatic control position (Auto) on the face-piece 12; Dropout position (Trip); Disjunction position (Off); Reset position (Reset); Isolated location (O); Being equipped with in the installing plate 1 can be respectively and the Pyromagnetic release of KB0 control and protective switching device; Main circuit contact group; Electromagnetism transmission mechanism; The push rod 8 of interrupter parallel connection; Push pedal 7; Rocking arm 9; Pull bar 10; And manually operated indicating knob 11 arranged; This indicating knob 11 can place respectively automatic control position (Auto); Dropout position (Trip); Disjunction position (Off); Reset position (Reset); Isolated location (O); Side cam 2 also is housed in the installing plate 1; Tripping cam 3; Cam 4; Middle retainer 5; Side retainer 6; Spring; Tripping cam 3 and side cam 2 are on installing plate 1 the right; Side cam 2 is above tripping cam 3; Push rod 8 is contained in the right of tripping cam 3 and side cam 2; Middle retainer 5 and rocking arm 9 are loaded on installing plate 1 left side; Rocking arm 9 is above middle retainer 5; Side retainer 6 is in installing plate 1 upper right side; Push pedal 7 is contained in installing plate 1 bottom; Cam 4 is at installing plate 1 middle part, and pull bar 10 is contained in installing plate 1 top.

Referring to Fig. 1-Fig. 4, when knob 11 is indicated in manual operation by dropout position (Trip) to reset position (Reset), in rotary course, cam 4 is followed indication knob 11 and is done together and be rotated counterclockwise, and promotion side cam 2 is done reverse rotation, promote tripping cam 3 by side cam 2 again and do rotation in the same way, behind indication knob 11 operation certain angles, by the extremely automatic control position (Auto) of reset position (Reset), in this process, because the effect of reaction spring, make side cam 2 and tripping cam 3 toward swivel motion, stop its motion by side retainer 6 this moment, makes the spring of side cam 2 and tripping cam 3 produce energy storage, when indication knob 11 is operated automatic control position (Auto), end system device 5 under the reaction spring effect, fasten cam 4, make it can rest on automatic control position (Auto), simultaneously, middle retainer 5 promotes rocking arm 9 work.It can reliably be realized overload, only reports to the police during overcurrent and not disconnect main circuit; The fire-fighting function that under short-circuit conditions, just disconnects main circuit and report to the police.

Referring to Fig. 5-Fig. 8, when indication knob 11 places automatic control position (Auto), side cam 2 and tripping cam 3 all are buckled on the side retainer 6, the button amount B of side cam 2 and side retainer 6 is less than the button amount A of tripping cam 3 and side retainer 6, middle retainer 5 fastens cam 4 at the M point, and tripping cam 3 is retainer 5 in the N point fastens simultaneously; If tripping cam 3 is rotated counterclockwise around the O point, retainer 5 turns clockwise in the drive, and then entire mechanism is threaded off.KB0 control and protection switch electrical equipment are disconnected.

Referring to Fig. 9 and Figure 10; when generic failures such as appearance overload, overcurrent; side retainer 6 is subjected to the power from the L direction; after making side retainer 6 rotate certain angle; side cam 2 is threaded off; and rotate to an angle, driving that push rod produces displacement C in KB0 control and the protection switch electrical equipment, push rod drives KB0 control and protection switch electrical equipment Alarm contactor action (omitting among the Alarm contactor figure).Referring to Fig. 5 and Fig. 6, because the button amount B of side cam 2 and side retainer 6 is less than the button amount A of tripping cam 3 and side retainer 6, at this moment, the anglec of rotation deficiency of side retainer 6 is so that 3 dropouts of tripping cam, so tripping cam 3 still is buckled on the side retainer 6, referring to Fig. 7 and Fig. 8, middle retainer 5 maintains original position and promptly still interlocks with tripping cam 3, i.e. the function that realization is transshipped, overcurrent is only reported to the police not " tripping operation ".

Referring to Figure 11-Figure 12; during short trouble; push rod 8 is given the power of 6 one P directions of side retainer; make side retainer 6 rotation counterclockwise, side cam 2 and tripping cam 3 are all threaded off, retainer 5 turned clockwise during the cam of tripping simultaneously 3 drove; entire mechanism is threaded off; KB0 control disconnects with protection switch electrical equipment, indicate simultaneously knob 11 also by automatic control position (Auto) to position, dropout position (Trip), the function of disjunction main circuit when promptly realizing short circuit.

Referring to Figure 13, manually during the disjunction main circuit, indication knob 11 is threaded to disjunction position (Off) by automatic control position (Auto), and cam 4 is backed down middle retainer 5, and retainer 5 turns clockwise in making, the disconnection main circuit.

Referring to Fig. 1-Fig. 2, the operating mechanism of described a kind of control and protection switch electrical equipment, two can combine, and a connecting rod connects two rocking arm 9.Use it, can realize controlling KB0 control and the duplicate supply of protection switch electrical equipment, the electromagnetic mechanism of reversible, control main circuit with this.

Claims (1)

1; A kind of operating mechanism of control and protective switching device; It comprises installing plate (1) and face-piece (12); The upper sign of face-piece (12) has automatic control position; The dropout position; The disjunction position; Reset position; The isolated location; Being equipped with in the installing plate (1) can be respectively and the Pyromagnetic release of KB0 control and protective switching device; Main circuit contact group; Electromagnetism transmission mechanism; The push rod of interrupter parallel connection (8); Push pedal (7); Rocking arm (9); Pull bar (10); And have and manually operatedly can place respectively automatic control position; The dropout position; The disjunction position; Reset position; The indicating knob of isolated location (11); It is characterized in that: side cam (2) also is housed in the installing plate (1); Tripping cam (3); Cam (4); Middle retainer (5); Side retainer (6); Spring; Tripping cam (3) and side cam (2) are on installing plate (1) the right; Side cam (2) is in tripping cam (3) top; Push rod (8) is contained in the right of tripping cam (3) and side cam (2); Middle retainer (5) and rocking arm (9) are loaded on installing plate (1) left side; Rocking arm (9) is in middle retainer (5) top; Side retainer (6) is in installing plate (1) upper right side; Push pedal (7) is contained in installing plate (1) bottom; Cam (4) is at installing plate (1) middle part, and pull bar (10) is contained in installing plate (1) top.

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