The present invention can avoid described problem, and a brand-new control device is provided, and is used for required equipment, unit or equipment, can use safely and the locking switch device, and can be with simple method examination and maintenance equipment.
Purpose of the present invention realizes that in mode so this control device is included in disclosed feature in claims.More precisely, the principal character of equipment of the present invention is recorded in the characteristic of claim 1.
Control device of the present invention provides a kind of independently module mechanism, and its preferred embodiment comprises such part, the switch control of its control switch device and the lock function of service cover, for example, the high-pressure space of service cover enclosed box body in high-tension apparatus.Technical scheme of the present invention successfully is integrated in a very simple entity to different devices.Therefore, the simplest control device comprises the entity that only has two fixed screws, and this entity is arranged in cover or the lid structure.Link to each other with described entity with lock function with the switch control of the service cover of high-pressure space insulation.
According to first preferred embodiment of the present invention, comprise that the three-position switch device of an axis is provided with two different handle holes, even switching device comprises unique Control Shaft, this Control Shaft holds the rotation end of hand controller.Therefore, usually for the switching device of voltage apparatus, the handoff functionality of on-off and opening-ground connection is divided into specific switching position.In order between each described position, to move, need remove from the rotation end of Control Shaft as the turning handle of hand controller, then, in control device of the present invention, the position of control board can change.This accident, and when being provided with according to control device of the present invention, can prevent the direct handoff functionality from off-position to earthing position.For example, in order to carry out various controls or locking means, the equipment that is provided with according to control device of the present invention has four different operating positions.
According to second preferred embodiment of the present invention, control device also can be used for the lid of switching equipment or equipment, for example, and the service cover of the high-pressure space of the box body of high-tension apparatus.When high-tension apparatus was worked, service cover was locked, therefore, prevented the high-pressure space near box body fully.Yet at an operating position of control device, service cover is opened.In order to realize this function, switching device must be in earthing position.Only at earthing position, control device just can move to this operating position, to discharge service cover.When service cover was released, service cover was detachable or open, and then, control device can be reset to the operating position of above-mentioned opening-ground connection once more, and at this moment, if desired, switching device can turn to open position.The position of discussing is the test position according to control device of the present invention, by control device of the present invention, under the situation that high-pressure space is opened, carries out required test and other inspection method in high-pressure space.Therefore, control device of the present invention can switch to test and maintenance position according to the unique selector of logical program by control device of operation.
Because each controlled function of switching device has specific different operating position in control device, switching device locks easily, and like this, switching device can not adopt such as the padlock of control device and be controlled by hand controller.
The present invention has tangible advantage.Control device is unit independently, and all functions all are fixedly installed in unique device.Control device and surrounding structure do not have getting in touch on the function, therefore, can be easily positioned in any switching device that comprises an axis.Control board is simple in structure, makes easily and uses, and this control board is used for the switching control function of control device.
This control device is installed easily.This control device comprises the cover of simple with groove, and for example, this groove is arranged on the edge of metallic plate of the shell of enclosing casing, and then, control device is fixed on the equipment by two screws.
Because simple plank frame, control device satisfy the requirement of the compact level of equipment needs easily, for example, the IEC 60298 that IP3X needs.
Because structural change is few, when test cable, control device of the present invention also scalable is opened the possibility of lid in equipment, as opens service cover, therefore, can guarantee safe operational environment concerning maintenance and installation personnel.
As mentioned above, by locking is set, moving of restriction control board can prevent the function of control device.For this reason, preferably adopt padlock.The use of padlock makes the control device restriction use various zones.When the lid of equipment is opened or is removed, still may keep locking, in this case, still can continue installation switching device, still, if desired, can only carry out with limited method.Other method is to adopt several tapered ends that control device is locked on the certain location.Therefore, in installation process, for control device, each skilled worker can have a specific tapered end, and therefore, the switching control function of high-tension apparatus and handoff functionality subsequently can not carry out, and are removed until last tapered end.Locking also guarantees not allow motor-driven control.For example, adopt the little electric switch on the control board that is arranged on control device can close possible motor-driven control.By discerning the use location of motor-driven control, but the position of little electric switch identification control plate.The preferably such position of first operating position of control device, that is: in this position, switching device can rotate between " opening " and off-position.Therefore, for instance, the provision for sealing that is provided with the opening service cover can not drive because of the mistake of motor and be controlled by remote control.
Other method allows one or more fixedly tapered ends to be arranged on the control device of the present invention.When the service cover of equipment was opened, such tapered end also can be operated.In addition, fixedly the function of tapered end is a padlock, and has the specific key according to equipment.Only when locking, key just can be removed.When adopting fixedly tapered end, they can be shared with the fixedly tapered end of miscellaneous equipment, the possibility that locks with further raising.
The present invention will be described in more detail below in conjunction with accompanying drawing, and accompanying drawing shows embodiments of the invention, wherein:
A preferred embodiment of the present invention comprises the technical scheme shown in the accompanying drawing 1-5.Such control device 1 is arranged on the box body 2, and as shown in Figure 1, box body 2 has formed high-tension apparatus, and particularly, control device 1 preferably adopts several self-tapping screws to be arranged on the shell 4 of low-voltage space 3 in the box body.Because connection is very firm, control device is easily installed on the equipment, thus the reliable function of the equipment of assurance.
Therefore, for instance, the basic technical scheme of control device 1 of the present invention comprises cover 5, and this cover 5 is arranged in the low-voltage space 3 of box body 2, comprises mounting groove 6, and this mounting groove 6 holds the edge of shell 4.Control board 7 is the most important parts that form control device, and control board 7 is slidably disposed in the control flume 8 of cover of control device, and move on the surface that can be parallel to shell.A preferred embodiment of control board comprises two adjacent handle holes 10, and this handle hole 10 has penetrated control board, and holds the hand controller 9 of control switch device.Between the handle hole of control board and the both sides of control board, be formed with so-called neck 11 and 12.The handle hole of control board alternately moves to the rotation end 13 of the Control Shaft that extends to switching device, rotates end so that turning handle is arranged on.
Move by making control board 7 be parallel to box surface, its handle hole alternately is in and rotates end 13 places, and in this case, switching device is provided with hand controller, so that motion is controlled.Like this, also can prevent hand controller near rotating end, as shown in Figure 2, method is at least with the neck between the handle hole of control board, and promptly intermediate neck 11, stop to rotate end.As shown in Figure 3, rotating end also can be by the neck of handle hole both sides, and promptly the neck 12 of both sides stops.The rotation amplitude of hand controller can carry out different adjustings respectively in each handle hole, method is projection to be set being provided with on the surface of hand controller on barrier element 14 or the surface at hand controller, simultaneously, this protruding control section 15 is held in setting in the handle hole of control board.The control board of control device 1 can form like this, that is: when first-hand delthyrium is in the rotation end of switching device, switching device can only the position of the switch " open " and " pass " between rotate.When second-hand's delthyrium was in the rotation end, the control section of handle hole was determined the rotation of hand controller, like this, by the rotation of hand controller 9, can only " open " and " ground connection " by chosen position.
Like this, control device 1 of the present invention and control board thereof can guarantee easily: switching device can not directly turn to " ground connection " position from the off-position, otherwise the equipment that may damage switching device and be attached thereto.The geometry of the handle hole 10 of control board also can partially or even wholly prevent the rotation of the hand controller 9 of control switch device.Therefore, the rotation of hand controller can be partly limited by the shape of the control section 15 of control board, also can be limited fully near rotating end by preventing hand controller, method is to select the operating position of a control board, control board is stopped at least in part rotate end.
According to preferred embodiment of the present invention, control device 1 comprises four operating positions.The controlled function of each described operating position is shown in Fig. 6 and 7a-e.At the operating position (I) of the control device shown in Fig. 7 a, switching device can turn to " opening " position from the off-position, or from " opening " rotated position to the off-position.The switch of equipment can be in the pass, open or earthing position.Second operating position (II) at the control device shown in Fig. 7 b, switching device can not rotate at all, this is because the intermediate neck 11 between the handle hole 10 is stopping the rotation of the rotation end 13 of Control Shaft, therefore, can prevent the Control Shaft of hand controller 9 near the control switch device.Like this, switching device remains on selected position, that is: switch can be in the pass, open or earthing position.At the 3rd operating position (III) of the control device shown in Fig. 7 c, the rotation end of switching device has been released again, and like this, switching device can be from " opening " rotated position to " ground connection " position, or from " ground connection " rotated position to " opening " position.Switch can be in the pass, open or earthing position.At the 4th operating position (IV) of the control device shown in Fig. 7 d, the neck 12 of the side of control board 7 prevents hand controller near rotating end, and switching device can not rotate.Then, switch is in earthing position, and this is owing to be arranged on control board and rotate the rotation that the barrier element of holding between 13 16 has influenced control board.Have only when switching device turns to earthing position, barrier element just can make control device arrive up-to-date operating position.For example, such barrier element includes pin 17, shown in Fig. 9 or 10, pin 17 extends to switching device in the edge of control board 7, the rotation end 13 of the Control Shaft that this pin 17 can the contact-making switch device, at this moment, switching device turns to the another one position, rather than earthing position.Yet, rotate end and comprise groove 18, when switching device turned to described earthing position, pin can slide in groove 18.
Particularly, in order to control moving of control board, be provided with and select arm 19, this selections arm 19 extends from described control board, and particularly, this selection arm from the outside of box body by hand.For example, this selection arm passes the lid 20 of sealing low-voltage space by the opening 21 of lid.In order to prevent to adopt the operating position of control device, or, can lock control board to control device for control device being locked in desirable operating position.According to the present invention, realize that the simplest method of this point comprises: control board is locked on one or several position of equipment cover 5 by described selection arm 19; Be locked on the mounting panel 22 of outer cover 5 of equipment; Be locked on the part of holding control device of equipment; Or be locked on such mounting panel, it is fixed on the box body firmly by the mechanical organ known and the tapered end of setting, and this mechanical organ and tapered end are faced mutually.Selection arm 19 shown in the drawings is provided with at least one lock hole 23, and simultaneously, as shown in Figure 2, for instance, mounting panel is provided with four lock holes 24.When the shell that is parallel to box body along control flume 8 when control board slided, selecting arm and mounting panel was that lock hole 23,24 can be distinguished mutually and faces, to arrive each operating position, in this case, for instance, the configurable padlock 25 of such lock hole is to prevent moving of control board.
If the lid 20 of the low-voltage space 3 of enclosed box body 2 is opened, for example for maintenance purpose, the control of switch remains locking in the box body, because be provided with tapered end on opposed facing lock hole 23,24 in control device of the present invention.Control device of the present invention has satisfied three locking requirements, and therefore, switching device can not misrouted to the off-position.Can use different zones by several tapered end restrictions, can adopt annex to be installed on the control device, annex is such as the scissors lock that is arranged on the control device 1.
As shown in figure 10, control device is provided with locking mechanism 26, can open and close so that cover 20, causes low-voltage space 3 irrelevant with the locking of control device 1.This locking mechanism comprises the lockings comb 27 and the locking frame 28 static with respect to control board that can move with control board 7.This locking frame is provided with the desirable lock body 29 of ideal purpose, covers at low-voltage space and is provided with keyhole, makes also can lock when closing when covering.The space of having only low-voltage space to adopt, i.e. the width of low-voltage space limits the number of employed locking.
Locking comb 27 can be the standing part of control board 7, also can be with mechanical means as being weldingly fixed on the control board.This locking comb comprises bolt block 30, to hold the lock(ing) bolt 31 that is arranged on the lock body 29 on the locking frame 28.The locking frame can be arranged on still in such a manner on the cover 5 of control device, also can be arranged in the low-voltage space 3, that is: when rotation place the lock in key the time, the lock(ing) bolt of lock body extends to bolt block.
Locking mechanism 26 is operated as follows.When control device 1 was in desirable operating position, locking comb 27 and locking frame 28 locked together mutually still, use a tapered end at least in the locking frame.Owing in the locking comb, have several bolt blocks 30 usually, in the locking frame, have several locks, can lock with several tapered ends if desired.
According to the another one preferred embodiment, control device 1 of the present invention is provided with the switch element of service cover 33, closes the high-pressure space 32 of box body 2, prevents opening of service cover.The mode that this service cover is known with itself is arranged on the shell of box body, perhaps adopts folding, perhaps adopts the element of controlling at the edge can hold service cover shown in Fig. 8 and 9.
For example, shown in Fig. 8 and 9, this switch element comprises bolt 36 or controls element 35 that bolt 36 points to the edge 34 of service cover 33, is arranged on this edge and prevents that this edge from moving and control element 35.This bolt is at least partially disposed in the control flume 8, moves in control flume by making control board 7, and bolt is inserted to the edge of service cover, to remove on opening of preventing to cover or the slave unit.Like this, bolt forces service cover to be locked in the operating position I-III of control board 7.Be at switching device under the situation of earthing position, when when the operating position IV that does not have operating function controls this control board, bolt discharges from the position of locking service cover.Service cover can be opened or remove, to discharge the high-pressure space 32 of box body 2.
This embodiment that illustrates with reference to the accompanying drawings, switch element comprises cylindrical bolt 36, and this bolt passes the cover 5 of control device, and has different diameters, can be parallel to longitudinal axis in essence and move, and this longitudinal axis is parallel to the front surface of box body 2 in essence.The cross section of bolt also can be square or polygon, therefore, several flanges can be arranged to protrude from bolt with the same mode of cylindrical bolt.When bolt moves, the control board 7 that it passes control flume 8 and slides in control flume 8.On certain position of the control flume of control board, be provided with the groove 37 that holds bolt.The shape of this groove is tapered gradually in such a manner, that is: at each operating position place, the part of bolt or bolt is passed control board.The coordination in such a manner of bolt and groove, that is: at the operating position I-III place of control device, bolt extends to service cover 33 or controls element 35 on it, removes from the position of the high-pressure space of enclosed box body to prevent bolt.
Describe below in conjunction with the bolt 36 of 4,8 and 9 pairs of switching devices of accompanying drawing and the operation of the groove 37 on the control board.The cross section of bolt comprises six parts.In the upper end of control board 7 one sides, this bolt comprises the support portion 38 of minor diameter, and this support portion can be moved in supported hole 39, and this supported hole 39 extends from covering 5 control flume 8.Particularly, support portion 38 is provided with flexible member 40, moves so that can be parallel to the longitudinal axis of bolt.In all operations position of control board, on control board, also be provided with groove 37, to hold this support portion.The adjacent part of support portion 38 is sticking departments 41, the maximum gauge part that this sticking department 41 is bolts.When the support portion was mobile in groove, this sticking department moved to the operating position IV of control device 1 along the lower surface 42 at certain position in the control flume of control board 7.Under this operating position, groove is enough wide, and bolt can be in vertical motion, and at this moment, bolt is caused to move upwardly under the effect of spring element 40, until touching cover 5.Moving both vertically of bolt at operating position IV place is used to discharge service cover 33, and at this moment, for instance, in order to carry out technical maintenance, service cover 33 can be opened or remove from box body.
Because bolt 36 is vertical moving upwards, quilt cover 5 fastenings are at groove 37 places.The adjacent part of the sticking department of bolt is the test portion 43 of bolt, and the diameter of this test portion 43 is less than sticking department but greater than the support portion.The function of test portion is that control board 7 is only moved between operating position IV and III.For this reason, the part of holding test portion slightly wideer than the support portion is arranged in the groove of control board, and the position is in the support portion 38 of the narrowest bolt and hold between the part of the wideest sticking department 41, for instance, and as shown in Figure 4.Because the test portion of bolt moves in the wide portions of groove, control board 7 can move between operating position III and IV, and therefore, if desired, in order to carry out necessary test, at operating position III place, equipment can switch to open position.
Particularly, the further part of test portion 43 is control part 44 and connecting portion 45,46, and connecting portion 45,46 is near service cover and control element.Control part is used for carrying bolt, and at this moment, under the control of spring element, control part moves to the position that service cover is opened; Or maintenance department is closed to latched position.For this reason, preferably be provided with control hole at the control flume and the position of covering between 5 the service cover, to hold this control part.In the embodiment shown in the figures, connecting portion comprises flanged pin, this pin is controlled the V shape opening of controlling element that stretches out from the edge 34 of service cover, and service cover is promoted to open position, simultaneously, bolt moves upward and prevents that service cover is removed, at this moment, at operating position I-III place, bolt is in lower position.
Yet the service cover 33 of high-pressure space 32 resets in the position of the operating position III of control device, and simultaneously, the groove 37 of control board prevents the moving both vertically of bolt 36 of switching device.In order to connect service cover, at first must turn to earthing position to equipment, to discharge the motion of control board 7, then, control board can be reset to operating position IV, in this case, bolt is released, and to be in vertical motion, can turn to the position of closing service cover 33 again, simultaneously, make control board be movable to all operating positions.
Should be appreciated that above-mentioned explanation and accompanying drawing only are in order to explain the present invention.The present invention is not limited only to the foregoing description by claims decision.Clearly, those skilled in the art can several mode variations and modifications of the present invention, but this is all in the scope of being determined by claims of the present invention.