CN208938849U - The mechanical interlocking of two ME and QPS - Google Patents

Abstract

The utility model discloses the mechanical interlockings of two ME and QPS, including handle cover and lock box, the handle cover is mounted in cabinet door, and the inside of cabinet door is fixedly installed with QPS shaft close to middle, it is provided with locking plate beside the QPS shaft, is provided with hinge and tension spring between the locking plate and fixed plate.The utility model makes the present apparatus in use by being provided with a series of structure, two inlet wires one can be got in touch with (breaker is all interlocked with the standard circuit of ME) with generator, it avoids when double-throw switch QPS invests the end ME, it will not close a floodgate because of the incoming call of ME, and alternating current is connected with generator and is caused the accident.Without this mechanical chain, system will be absolutely unsafe, and power supply department will not allow this system power transmission.

Description

The mechanical interlocking of two ME and QPS

Technical field

The utility model relates to mechanical interlocking technical field, the mechanical interlockings of specially two ME and QPS.

Background technique

At present, the system of the standard circuit of two inlet wires one contact (breaker all uses ME) and stand-by generator circuit composition In, to avoid when double-throw switch QPS invests the end ME, alternating current and generator will not be connected because of the combined floodgate power transmission of ME, be made At accident.Must just there be extremely reliable interlocking.And QPS double-throw switch is manual operation element, for getting used to electric interlock People will be helpless.But under the pressure of this mechanical chain, power supply department will not allow this system to put into operation, power transmission Such harsh reality, devises the present invention.The configuration of the present invention is simple is illustrated, and cost is very low, and effect is very good.It can also amplify It is applied into similar system.In the system of common two inlet wire one contact, electric interlock is devised, i.e., every time at most It can only two switches combined floodgates.In order to also give some basic load emergency services, design in the case where two road power supplys all have a power failure Increase generator, with manually double-throw switch QPS switching.When throwing is at the end ME, it is possible in common electricity incoming call, breaker ME false switching causes alternating current to flow backward motor of setting out, causes accident.Present invention needs reach: QPS is thrown at the end ME, and two ME guarantee It cannot close a floodgate；In ME work, guarantee that QPS cannot invest ME.

Utility model content

The purpose of this utility model is to provide the mechanical interlockings of two ME and QPS, to solve above-mentioned background technique The problem of middle proposition.

To achieve the above object, the utility model provides the following technical solutions: the mechanical interlocking of two ME and QPS, Including handle cover and lock box, a side external surface of the handle cover is fixedly installed with cabinet door, and the inside of cabinet door is close to middle It is fixedly installed with QPS shaft, is provided with locking plate above the QPS shaft, and be arranged between locking plate and fixed plate hinged Chain and tension spring, the tension spring are located at the side of hinge.The inside of the cabinet door is fixedly installed with two door locks by place near to the upper end, if Be equipped with key, respectively with it is sealed with a key on a ME lock box.Every pull-out type ME is provided with frame, and ME breaker can To slide extraction in the sliding slot that is arranged along frame side, and it is provided between sliding slot and ME lock box and can rotates and stretch with key The lock tongue of contracting.

Before needing switching QPS, first by ME separating brake, ME breaker core pulls out sliding slot, then will be inserted in two ME locks respectively Key on box, rotates counterclockwise, and allowing lock tongue to put in ME frame sliding slot, (only when ME is pulled out, sliding slot can hold at this It receives lock tongue, is that ME ontology blocks lock tongue when not pulling out, can stretch).The key on ME lock box can be extracted at this time, then is inserted In lock on to QPS door, two locks are rotated clockwise respectively, when two lock tongues all withdraw the direction resisted to locking plate, by In the effect of tension spring, being originally interlocked the square shaft that the square groove of on piece vises can be had rotated, and QPS can rotate switching.It is inserted in lock On key cannot extract.When QPS shaft turns over 90 °, long axis is turned to locking plate (6 dotted line positions in Fig. 1) by safety pole on one side, It resists and locking plate is not allowed to move to right.It needs to restore, QPS first can be rotated into switchback origin-location, safety pole long axis is retracted (6 in Fig. 1 Solid line position), locking plate can move to right.Rotate the keys of QPS lockings counterclockwise respectively again, two resist interlocking lock tongue stretching The square groove of piece, locking plate vises the square shaft of QPS.Key is extracted, then is inserted into locking for ME lock box respectively, is rotated clockwise, is locked Tongue exits sliding slot, promotes ME breaker core, and key, which is switched off device core and blocks, not to be able to rotate and can not pull out.Complete one cycle throwing It cuts.

By using above-mentioned technical proposal, can have between two tunnel transformer-supplied circuits and QPS double-throw switch The mechanical interlocking of effect controls, i.e. QPS is thrown at the end ME, and locking plate is resisted by safety pole, is not able to rotate key and pushes away locking plate and pull out Key；Two ME are pulling out position again, and ensure that cannot close a floodgate；In ME work, QPS square shaft is interlocked piece and vises, and is not able to rotate, It ensure that QPS cannot invest ME.

In conclusion the utility model has the following beneficial effects:

The method of four two keys of lock of this interlocking, carries out 2 ME main circuit breakers in two tunnel transformer-supplied circuits mechanical Interlocked control, i.e. QPS are thrown at the end ME, and two ME guarantees cannot close a floodgate；In ME work, guarantee that QPS cannot invest ME.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the schematic diagram of the overall structure other direction of the utility model；

Fig. 3 is that the fixed plate of the utility model and the first lock tongue match view；

Fig. 4 is that the holder of the utility model and lock box match view；

Fig. 5 is the system interlock figure of the utility model.

In figure: 1, cabinet door；2, handle cover；3, ME locks；4, QPS shaft；5, locking plate；6, safety pole；7, fixed plate；8, door Lock；9, lock tongue；10, key；11, tension spring；12, fixation hole；13, hinge；14, ME breaker frame；15, ME breaker core；16, sliding Slot；17, ME lock tongue；18, ME lock box.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition Understand the concrete meaning of above-mentioned term in the present invention.

Fig. 1-5 is please referred to, a kind of embodiment provided by the utility model: the mechanical interlocking of two ME and QPS, including Handle cover 2 and ME lock box 18 are ME frames 14 in the side of ME lock box 18, and inside is ME breaker core 15, can be in sliding slot 16 Middle sliding pulls out, and ME lock tongue 17 is arranged between sliding slot 16 and ME lock box 18.

Each ME breaker core is pulled out to bottom respectively, will originally inserted by disjunction QF1 first when use, QF2ME breaker core 15 Key on ME lock 3 is screwed into bottom counterclockwise, protrudes into ME lock tongue 17 in sliding slot 16, the breaker core 15 for blocking extraction cannot Then push-in extracts key 10 respectively, then be inserted on the door lock 8 on 2 side of QPS handle cover, moves clockwise to bottom, retracts lock Tongue, when two lock tongues all retract, locking plate is pulled open the position for vising square shaft by tension spring 10, and QPS can rotate switching, and QPS turns After 90 ° dynamic, safety pole long axis resists locking plate (6 dotted line positions in Fig. 1), cannot move to right, locking key cannot pull up.And door lock 8 internal activity is respectively equipped with lock tongue 9, and described four are provided with two keys 10 a side external surface of door lock 8, altogether by 4 locks With that is, two are locked a shared key.

Such as to restore, first rotate QPS switchback original position, safety pole becomes short axle (solid line position in Fig. 1), and safety pole can be right It moves, after rotating counterclockwise upper two keys 8 locked of door respectively, locking plate 5 is pushed away the position toward QPS shaft 4 by lock tongue, allows connection Square groove on locking plate 5 blocks QPS shaft 4, then extracts key 10 respectively, then it is inserted into the ME of two ME lock boxes 18 respectively On lock 3, bottom is moved clockwise to, the retraction of ME lock tongue 17 is made to exit sliding slot, push-on switch drawer, until on-position, ME lock tongue at this time 17, which are switched off device core, blocks, and key 10 is not able to rotate, and cannot be extracted, and ME breaker core 15 can close a floodgate energization at this time.

It is flexibly connected between the locking plate 7 and fixed plate 5 by hinge 13, and a side external surface of locking plate 7 is fixed Fixation hole 12 is installed.The quantity of the ME lock box 18, door lock 8 and ME breaker core 15 is two, and the ME lock box 18 divides It is not fixedly mounted on the side of two ME breaker cores 15, two door locks 8 are located on QPS same straight lines.

The lower end outer surface of the ME lock box 18 is fixedly installed with fixing seat, and the upper end outer surface of fixing seat is provided with installation Hole.The outer surface of the locking plate 5 is provided with square groove close to the position of QPS shaft 4, this square groove is as the shape of QPS shaft 4 It is rectangular and rectangular shaft can be vised and do not allow rotation.The leading exterior surface of the ME lock box 18 is provided with ME lock 3.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (6)

1. the mechanical interlocking of two ME and QPS, including handle cover (2) and lock box (18), it is characterised in that: the handle cover (2) a side external surface is fixedly installed with cabinet door (1), and the inside of cabinet door (1) is fixedly installed with QPS shaft close to middle (4), it is provided with locking plate (5) above the QPS shaft (4), safety pole (6) is housed on square shaft, rotate 90 ° of time-varying in square shaft Long, resisting locking plate cannot move to right；The upper end outer surface of locking plate (5) is fixedly installed with fixed plate (7), the locking plate (5) Hinge (13) and tension spring (11) are provided between fixed plate (7), the tension spring (11) is located at the side of hinge (13), the cabinet The inside of door (1) is fixedly installed with two door locks (8) by place near to the upper end, and the internal activity of door lock (8) is respectively equipped with lock tongue (9), described four a side external surface of door lock (8) is provided with two keys (10), is shared by 4 locks, i.e., two locks share one Key；The side of the ME lock box (18) is ME breaker frame (14), and being provided in frame can be with the ME breaker core of pull-out type (15), the side of ME breaker frame (14) has sliding slot (16), and is provided with and can stretch between sliding slot (16) and ME lock box (18) ME lock tongue (17) in sliding slot.

2. the mechanical interlocking of two ME and QPS according to claim 1, it is characterised in that: the locking plate (5) with It is flexibly connected between fixed plate (7) by hinge (13), and a side external surface of fixed plate (7) is fixedly installed with fixation hole (12)。

3. the mechanical interlocking of two ME and QPS according to claim 1, it is characterised in that: the ME lock box (18), The quantity of door lock (8) and ME breaker core (15) is two, and the ME lock box (18) is respectively and fixedly installed to two ME open circuits The side of device core (15) is respectively arranged with a door lock (8) and corresponding lock tongue on each lock box；Described other two door lock (8) position In on QPS same straight lines；Their shared two keys corresponding with the lock on lock box (18), i.e., lock for 2 and share a key；Key Spoon goes to bottom counterclockwise and can extract from locking, otherwise can not pull out.

4. the mechanical interlocking of two ME and QPS according to claim 1, it is characterised in that: the ME lock box (18) Lower end outer surface be fixedly installed with fixing seat, the upper end outer surface of fixing seat is provided with mounting hole.

5. the mechanical interlocking of two ME and QPS according to claim 1, it is characterised in that: the locking plate (5) Outer surface is provided with square groove close to the position of QPS shaft (4), this square groove is rectangular as the shape of QPS shaft (4) and can be with Rectangular shaft is vised and does not allow rotation.

6. the mechanical interlocking of two ME and QPS according to claim 1, it is characterised in that: the ME lock box (18) Leading exterior surface be provided with ME lock (3).