CN212136335U - Opening mechanism and isolating switch conductive paste coating device thereof - Google Patents

Abstract

An opening mechanism and a device for coating conductive paste on an isolating switch thereof are disclosed, wherein the opening mechanism is used for clamping an opening part of a knife switch and then driving the knife switch to open; the opening seat is internally provided with a sliding plate groove, the clamping sliding plate is clamped and slidably arranged in the sliding plate groove, the opening seat is provided with a clamping guide plate, and the end face of the clamping guide plate, facing the sliding plate groove, is attached to the end face of the clamping sliding plate; a fixture block sliding groove is formed in the clamping guide plate, a fixture block and a driving plate are arranged on the clamping sliding plate, and the fixture block is clamped and slidably arranged in the fixture block sliding groove; the clamping guide plate is further provided with a matching clamping plate, the opening part is clamped between the matching clamping plate and the clamping block, the matching clamping plate is fixedly assembled with one end of the opening vertical plate, the other end of the opening vertical plate is hinged with one end of the opening connecting plate through a hinge, and the other end of the opening connecting plate is fixedly assembled with the smearing top plate.

Description

Opening mechanism and isolating switch conductive paste coating device thereof

Technical Field

The utility model relates to a isolator maintenance of equipment especially relates to an opening mechanism and isolator scribbles conductive paste device thereof.

Background

In the maintenance of the disconnector, it is necessary to apply a conductive paste to the conductive groove of the blade, which can greatly increase the conductivity of the blade and also lubricate the blade. At present, the operation is mainly carried out on the opened knife switch through manual paper or a brush, on one hand, the labor is consumed, on the other hand, the conductive paste is not uniformly coated, and the maintenance effect is influenced. The inventor finds that the existing isolating switch is integrated in an isolating switch cabinet, the isolating switch in the cabinet is installed according to the standard size, and the isolating switch is also in the standard size, so that the foundation is provided for mechanization and automation. And adopt mechanization, automation to unify to open the plug-in strip, make electrically conductive groove be in the same position, then the electrically conductive groove of opening is paintd in unison through a equipment of paining electrically conductive cream, not only can greatly increased efficiency, but also provides technical basis for subsequent intelligent maintenance technique.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide an opening mechanism and isolator scribble conductive paste device thereof, its opening mechanism can open a plurality of plug-in strip simultaneously so that scribble the conductive slot.

To achieve the above object, the present invention provides an opening mechanism for clamping an opening portion of a knife switch and then driving the knife switch to open; the opening seat is internally provided with a sliding plate groove, the clamping sliding plate is clamped and slidably arranged in the sliding plate groove, the opening seat is provided with a clamping guide plate, and the end face of the clamping guide plate facing the sliding plate groove is attached to the end face of the clamping sliding plate; a fixture block sliding groove is formed in the clamping guide plate, a fixture block and a driving plate are arranged on the clamping sliding plate, and the fixture block is clamped and slidably arranged in the fixture block sliding groove;

the clamping guide plate is further provided with a matching clamping plate, the opening part is clamped between the matching clamping plate and the clamping block, the matching clamping plate is fixedly assembled with one end of the opening vertical plate, the other end of the opening vertical plate is hinged with one end of the opening connecting plate through a hinge, and the other end of the opening connecting plate is fixedly assembled with the smearing top plate.

Preferably, a spring shell is installed at one end, away from the drive plate, of the opening seat, a return spring is installed in the spring shell, the return spring enters the sliding plate groove and is tightly pressed with the end face of the clamping sliding plate, and therefore elastic force for blocking the clamping sliding plate to move towards the spring shell is applied to the clamping sliding plate.

Preferably, the side surface of the clamping sliding plate is also provided with a clamping locking groove, the clamping locking groove is respectively provided with a clamping straight surface and a clamping inclined surface, and the clamping inclined surface inclines from one end close to the spring shell to one end close to the driving plate;

the clamp lock groove is assembled with one end of the unlocking rod in a clamping mode, so that the clamp sliding plate cannot slide, the other end of the unlocking rod penetrates out of the opening seat and is fixedly assembled with the pull ring, the unlocking rod is fixedly assembled with one end of the spring piece, the other end of the spring piece is fixedly assembled with the opening seat, and the spring piece has elasticity and is used for applying elasticity to the unlocking rod to move towards the clamp lock groove.

Preferably, one end of the unlocking rod, which is inserted into the clamping locking groove, is respectively provided with a stop surface and a pushing inclined surface, and the stop surface is attached to the straight surface of the clamping; the pushing inclined plane can be attached to the clamping inclined plane.

The utility model also discloses a isolator scribbles conductive paste device, its application has above-mentioned opening mechanism.

Preferably, the coating device further comprises a coating mechanism, the coating mechanism comprises a coating top plate, two ends of the coating top plate are respectively provided with a coating side plate, the bottoms of the two coating side plates are respectively assembled and fixed with a first coating supporting plate and a second coating supporting plate, the first coating supporting plate and the second coating supporting plate are respectively provided with a first coating vertical plate and a second coating vertical plate, the first coating vertical plate and the second coating vertical plate are respectively connected and fixed with two ends of a coating belt, and the first coating vertical plate and the second coating vertical plate are respectively assembled with the first coating supporting plate and the second coating supporting plate in a sliding manner;

the second smearing vertical plate is fixedly assembled with one end of the smearing guide shaft, the other end of the smearing guide shaft is arranged in the smearing guide cylinder and can be axially assembled in a sliding mode, the smearing guide cylinder is fixed on the smearing side plate close to the smearing guide cylinder, the second smearing vertical plate and the smearing side plate close to the smearing vertical plate are fixedly assembled with the two ends of a tension spring respectively, the tension spring is used for applying elastic damping to the second smearing vertical plate to prevent the second smearing vertical plate from moving away from the smearing side plate, and the tension spring is sleeved outside the smearing guide cylinder and the smearing guide shaft;

the first smearing vertical plate is fixedly assembled with one end of the telescopic shaft, and the other end of the telescopic shaft penetrates through the smearing side plate close to the telescopic shaft and can be axially assembled with the smearing side plate in a sliding manner;

the smearing belt is made of cotton materials, and a plurality of smearing through holes which penetrate through the smearing belt are formed in the smearing belt; the smearing belt is also provided with a bottom part, a side part, an inclined plane part and an edge part, and the bottom part, the side part and the inclined plane part are respectively attached to the conductive bottom surface, the conductive side surface and the conductive inclined plane of the conductive groove; the two edge parts are respectively arranged at the top of the side part and the top of the inclined plane part.

Preferably, the telescopic shaft is arranged in the electromagnet, the electromagnet is arranged on the first smearing supporting plate, the electromagnet drives the telescopic shaft to move in the direction away from the smearing belt after being electrified, and the electromagnet is powered off after the smearing belt moves to the maximum position, so that the smearing belt is pulled reversely by the tension spring; the power supply line of the electromagnet is connected in series with the contactor, so that the contactor is used for controlling the on-off of the electromagnet.

Preferably, still install lead screw on the daubing roof axially slidable, the lead screw top is worn out and is daubed the roof and pass through the screw thread with stop nut and close the assembly soon to make lead screw can not pass the daubing roof downwards, the lead screw bottom is passed and is daubed the roof after fixed with the storage box assembly that supplies the cream subassembly, supply the cream subassembly still including opening piece, sealing plug, the storage box outside is provided with storage flange, inside is hollow storage chamber, and storage chamber top is provided with the filling hole, the row's cream groove of bottom for running through, and the opening piece has two and installs in arranging the cream inslot, constitutes row's cream passageway between two opening pieces, arranges cream passageway bottom and seals through the area of daubing.

Preferably, the part of the guide screw rod between the smearing top plate and the storage box is sleeved with a smearing pressure spring, and the smearing pressure spring is used for applying downward pressing elasticity to the storage box, so that the storage box is enabled to compress the smearing belt.

Preferably, the bottom of the storage box is clamped and attached with the smearing belt, so that the smearing belt is pressed in the conductive groove.

The utility model has the advantages that:

the utility model discloses simple structure, through storage electrically conductive cream of storage box, and utilize the electrically conductive groove of friction back and forth of the band of smearing of cotton to the realization is paintd electrically conductive cream on electrically conductive groove fast, and this kind of mode not only once can realize painting of a plurality of electrically conductive grooves, paints even, standard moreover, very accords with the requirement of present standardization maintenance.

The utility model discloses it unifies the opening to the plug-in strip with the line still to adopt opening mechanism to open to make the open mode of every plug-in strip unanimous, thereby make electrically conductive groove be in standard position basically, so that with scribble area, storage box block, thereby be convenient for scribble conductive paste.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic structural diagram of the present invention.

Fig. 5 is a schematic structural diagram of the present invention.

Fig. 6-7 are schematic structural views of the application mechanism of the present invention (cross-sectional views at two mutually perpendicular central planes where the axes of the lead screws are located).

Fig. 8 is a schematic structural view of the opening mechanism of the present invention.

Fig. 9 is a schematic view of the opening mechanism of the present invention (a cross-sectional view of the center plane of the clamping slide).

Fig. 10 is a schematic view of the opening mechanism of the present invention (a cross-sectional view of the central plane of the axis of the lock release lever).

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model is used for paint conductive paste to the conductive groove 101 of plug-in strip 100, and still be provided with opening part 110 on the plug-in strip 100, conductive groove 101 comprises electrically conductive bottom surface 1013, electrically conductive side 1011, electrically conductive inclined plane 1012 are connected respectively to electrically conductive bottom surface 1013 both ends. The opening portion 110 is located outside the housing of the disconnector when the blade is closed, so that the blade is opened by the opening portion.

Referring to fig. 1 to 10, the device for applying conductive paste to the disconnector of the present embodiment includes:

the smearing mechanism is used for smearing conductive paste on the opened conductive groove of the knife switch;

and the opening mechanism is used for opening the switch blades in the same row so as to facilitate the smearing mechanism to smear the opened switch blades.

Referring to fig. 1 to 8, the smearing mechanism includes a smearing top plate B110, two ends of the smearing top plate B110 are respectively provided with a smearing side plate B111, bottoms of the two smearing side plates B111 are respectively assembled and fixed with a first smearing supporting plate B120 and a second smearing supporting plate B130, the first smearing supporting plate B120 and the second smearing supporting plate B130 are respectively provided with a first smearing vertical plate B121 and a second smearing vertical plate B131, the first smearing vertical plate B121 and the second smearing vertical plate B131 are respectively connected and fixed with two ends of a smearing belt B400, the first smearing vertical plate B121 and the second smearing vertical plate B131 are respectively slidably assembled with the first smearing supporting plate B120 and the second smearing supporting plate B130, the second smearing vertical plate B131 is assembled and fixed with one end of a smearing guide shaft B250, the other end of the smearing guide shaft B250 is installed in a smearing guide cylinder B240 and axially slidably assembled therewith, the smearing guide cylinder B240 is fixed on the smearing side plate B111 close thereto, the second smearing vertical plate B131 and the smearing side plate B111 close to the second smearing vertical plate B131 are respectively assembled and fixed with two ends of a tension spring B230, and the tension spring B230 is used for applying elastic damping to the second smearing vertical plate B131 to prevent the second smearing vertical plate B131 from moving away from the smearing side plate B111. In this embodiment, the tension spring B230 is sleeved outside the smearing guide cylinder B240 and the smearing guide shaft B250.

First scribble riser B121 and telescopic shaft B311 one end assembly fixed, telescopic shaft B311 other end passes and scribbles curb plate B111 and the slidable assembly of axial with it that is close to, during the use, can directly stimulate telescopic shaft B311 and make telescopic shaft B311 drive through first scribble riser B121 and scribble area B400 and scribble riser B131 and overcome the elasticity of extension spring B230 with the pulling second and move to first scribbling riser B121, and the pulling force to the telescopic shaft disappears the back, the extension spring can be through the reverse pulling of self elasticity and scribble the area and reset, thereby make and scribble the area reciprocating motion.

In this embodiment, the telescopic shaft B311 is installed in the electromagnet B310, the electromagnet B310 is installed on the first smearing support plate B120, and the electromagnet can drive the telescopic shaft to move away from the smearing belt direction after being powered on, so as to pull the smearing belt, and the electromagnet is powered off after the smearing belt moves in place, so as to pull the smearing belt reversely through the tension spring. The power supply line of the electromagnet is connected in series with the contactor, so that the contactor is used for controlling the on-off of the electromagnet.

The smearing belt B400 is provided with a plurality of smearing through holes B401 which penetrate through the smearing belt B, and when the smearing belt B is used, the conductive paste penetrates through the smearing through holes and is smeared in the conductive groove 101. The coating tape B400 is further provided with a bottom portion B410, a side portion B421, a slope portion B422 and an edge portion B430, wherein the bottom portion B410, the side portion B421 and the slope portion B422 are respectively attached to the conductive bottom surface 1013, the conductive side surface 1011 and the conductive slope 1012 of the conductive groove 101, so that conductive paste can be applied to the three surfaces. The edge portions B430 are two in number and are disposed on top of the side portions B421 and the ramp portions B422, respectively, to provide a location for the smear tape (the edge portions B430 are captured between the storage flange B512 and the blade to maintain the position of the bottom portion B410, the side portions B421 and the ramp portions B422).

The top of the guide screw B210 penetrates through the smearing top plate B110 and is screwed with the limiting nut B211 through threads, so that the guide screw B210 cannot penetrate through the smearing top plate B110 downwards, the bottom of the guide screw B210 penetrates through the smearing top plate B110 and is fixedly assembled with a storage box B510 of a paste supply assembly B500, the paste supply assembly B500 further comprises an opening block B520 and a sealing plug B530, a storage flange B512 and a hollow storage cavity B511 are arranged on the outer side of the storage box B510, the top of the storage cavity B511 is provided with a filling hole B513, the bottom of the storage cavity B511 is a penetrating paste discharge groove B514, two opening blocks B520 are arranged in the paste discharge groove B514, a paste discharge passage B521 is formed between the two opening blocks B520, and the bottom of the paste discharge passage B521 is sealed through a smearing belt B400. When the conductive paste smearing device is used, the conductive paste is filled into the storage cavity B511 through the filling hole B513, the conductive paste is stored in the storage cavity B511, and the smearing through hole B401 can continuously lead out the conductive paste at the bottom of the paste discharging channel B521 in the reciprocating movement of the smearing belt, so that the conductive paste is continuously smeared in the conductive groove 101 to finish smearing. And this way does not cause the conductive paste to be discharged to the application tape in a large amount, thereby causing an excessive amount of the conductive paste. The smearing belt is made of cotton materials and can better adsorb the conductive paste, so that poor smearing effect caused by too little conductive paste on the smearing belt is prevented. The storage box B510 presses the smear tape against the blade by its own weight.

The part of the guide screw B210 between the smearing top plate B110 and the storage box B510 is sleeved with a smearing pressure spring B220, and the smearing pressure spring B220 is used for applying downward pressing elasticity to the storage box B510, so that the storage box B510 is enabled to press the smearing tape B400. Preferably, the bottom of the storage box B510 is engaged and attached with the smearing tape B400, so that the smearing tape is pressed in the conductive slot 101, so that the smearing tape can smear the conductive slot on the conductive slot.

Referring to fig. 1 to 10, the opening mechanism includes an opening seat a110 and a clip sliding plate a120, a sliding plate groove a111 is provided inside the opening seat a110, the clip sliding plate a120 is engaged and slidably installed in the sliding plate groove a111, a clip guide plate a130 is installed on the opening seat a110, and an end surface of the clip guide plate a130 facing the sliding plate groove a111 is abutted to an end surface of the clip sliding plate a120, so as to limit the clip sliding plate a 120. A fixture block sliding groove A131 is formed in the clamping guide plate A130, a fixture block A122 and a driving plate A121 are arranged on the clamping sliding plate A120, and the fixture block A122 is clamped and slidably mounted in the fixture block sliding groove A131;

the clamp guide plate A130 is further provided with a matching clamping plate A140, the opening part 110 is clamped between the matching clamping plate A140 and a clamping block A122, the matching clamping plate A140 is fixedly assembled with one end of the opening vertical plate A150, the other end of the opening vertical plate A160 is hinged with one end of the opening connecting plate A160 through a hinge A210, and the other end of the opening connecting plate A160 is fixedly assembled with the smearing top plate B110.

In an initial state, the smearing mechanism rotates to a state that the smearing mechanism is 180 degrees away from the opening vertical plate A150 in the drawing 1 through the hinge A210 (namely, the smearing mechanism rotates 180 degrees through the hinge in the drawing 1), so that the smearing mechanism is prevented from contacting with a shell of the isolating switch to influence use.

In use, the opening portion 110 is first fitted between the mating chucking plate a140 and the chucking block a122, and then the chucking slide plate a120 is pushed toward the mating chucking plate a140 by the drive plate a121, so that the chucking block a122 moves toward the mating chucking plate a140, thereby clamping the opening portion 110. The blade 100 is then pulled by the opening mechanism, causing the blade 100 to rotate open to the condition of fig. 6. This design allows for several times the efficiency of opening the blades one row at a time. The position of the knife switch after the opening mechanism is opened is relatively standard, so that a foundation can be provided for the operation of a subsequent smearing mechanism.

Preferably, a spring shell a170 is mounted on an end of the opening seat a110 away from the driving plate a121, a return spring a410 is mounted in the spring shell a170, and the return spring a410 enters the slide plate groove a111 and presses against an end surface of the clip slide plate a120, so as to apply an elastic force to the clip slide plate a120 to hinder the movement thereof to the spring shell a 170.

The side surface of the clamp sliding plate A120 is also provided with a clamp locking groove A123, the clamp locking groove A123 is respectively provided with a clamp straight surface A1232 and a clamp inclined surface A1231, and the clamp inclined surface A1231 inclines from one end close to the spring shell A170 to one end close to the drive plate A121;

the clamp locking groove A123 is assembled with one end of the unlocking rod A320 in a clamping mode, so that the clamp sliding plate A120 cannot slide, the other end of the unlocking rod A320 penetrates out of the opening seat A110 and then is assembled and fixed with the pull ring A321, the unlocking rod A320 is assembled and fixed with one end of the spring piece A310, the other end of the spring piece A310 is assembled and fixed with the opening seat A110, and the spring piece A310 has elasticity and is used for applying elasticity moving towards the clamp locking groove A123 to the unlocking rod A320. One end of the unlocking rod A320, which is arranged in the clamping locking groove A123, is respectively provided with a stop surface A323 and a pushing inclined surface A322, and the stop surface A323 is attached to a clamping straight surface A1232, so that the clamping sliding plate A120 is prevented from moving to the driving plate A121; the push inclined plane a322 may be attached to the clip inclined plane a1231 to apply an outward pushing elastic force to the unlocking lever a320, so that the clip sliding plate a120 may move unidirectionally toward the return spring a410, and thus, when the opening part 110 is chucked, the drive plate a121 may be directly pushed to chuck the opening part 110, thereby facilitating opening the knife blade. When the opening part 110 needs to be loosened, the unlocking rod A320 is directly pulled out of the clamping lock groove A123 through the pull ring A321, and at the moment, the return spring A410 drives the clamping slide plate A120 to return through elasticity.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. An opening mechanism for clamping an opening portion of a blade and then driving the blade open; the clamping device is characterized by comprising an opening seat and a clamping sliding plate, wherein a sliding plate groove is formed in the opening seat, the clamping sliding plate is clamped and slidably arranged in the sliding plate groove, a clamping guide plate is arranged on the opening seat, and the end face, facing the sliding plate groove, of the clamping guide plate is attached to the end face of the clamping sliding plate; a fixture block sliding groove is formed in the clamping guide plate, a fixture block and a driving plate are arranged on the clamping sliding plate, and the fixture block is clamped and slidably arranged in the fixture block sliding groove;

the clamping guide plate is further provided with a matching clamping plate, the opening part is clamped between the matching clamping plate and the clamping block, the matching clamping plate is fixedly assembled with one end of the opening vertical plate, the other end of the opening vertical plate is hinged with one end of the opening connecting plate through a hinge, and the other end of the opening connecting plate is fixedly assembled with the smearing top plate.

2. The opening mechanism of claim 1 wherein the opening seat has a spring housing mounted on an end thereof remote from the drive plate, a return spring mounted in the spring housing, the return spring entering the slot of the slide plate and pressing against the end surface of the chuck slide plate to apply a spring force to the chuck slide plate to resist movement of the chuck slide plate toward the spring housing.

3. The opening mechanism as claimed in claim 1 or 2, wherein the side of the clip sliding plate is further provided with a clip locking groove, the clip locking groove is respectively provided with a clip straight surface and a clip inclined surface, and the clip inclined surface inclines from one end close to the spring shell to one end close to the driving plate;

the clamp lock groove is assembled with one end of the unlocking rod in a clamping mode, so that the clamp sliding plate cannot slide, the other end of the unlocking rod penetrates out of the opening seat and is fixedly assembled with the pull ring, the unlocking rod is fixedly assembled with one end of the spring piece, the other end of the spring piece is fixedly assembled with the opening seat, and the spring piece has elasticity and is used for applying elasticity to the unlocking rod to move towards the clamp lock groove.

4. The opening mechanism as claimed in claim 3, wherein one end of said unlocking lever fitted into said clip lock groove is provided with a stop surface and a push inclined surface, respectively, said stop surface being in abutment with a straight surface of the clip; the pushing inclined plane can be attached to the clamping inclined plane.

5. An apparatus for applying a conductive paste to a disconnector, characterized in that an opening mechanism according to any one of claims 1-4 is applied.

6. The device for coating the conductive paste on the isolating switch according to claim 5, further comprising a coating mechanism, wherein the coating mechanism comprises a coating top plate, two ends of the coating top plate are respectively provided with a coating side plate, the bottoms of the two coating side plates are respectively assembled and fixed with a first coating supporting plate and a second coating supporting plate, the first coating supporting plate and the second coating supporting plate are respectively provided with a first coating vertical plate and a second coating vertical plate, the first coating vertical plate and the second coating vertical plate are respectively connected and fixed with two ends of the coating belt, and the first coating vertical plate and the second coating vertical plate are respectively assembled with the first coating supporting plate and the second coating supporting plate in a sliding manner;

the second smearing vertical plate is fixedly assembled with one end of the smearing guide shaft, the other end of the smearing guide shaft is arranged in the smearing guide cylinder and can be axially assembled in a sliding mode, the smearing guide cylinder is fixed on the smearing side plate close to the smearing guide cylinder, the second smearing vertical plate and the smearing side plate close to the smearing vertical plate are fixedly assembled with the two ends of a tension spring respectively, the tension spring is used for applying elastic damping to the second smearing vertical plate to prevent the second smearing vertical plate from moving away from the smearing side plate, and the tension spring is sleeved outside the smearing guide cylinder and the smearing guide shaft;

the first smearing vertical plate is fixedly assembled with one end of the telescopic shaft, and the other end of the telescopic shaft penetrates through the smearing side plate close to the telescopic shaft and can be axially assembled with the smearing side plate in a sliding manner;

the smearing belt is made of cotton materials, and a plurality of smearing through holes which penetrate through the smearing belt are formed in the smearing belt; the smearing belt is also provided with a bottom part, a side part, an inclined plane part and an edge part, and the bottom part, the side part and the inclined plane part are respectively attached to the conductive bottom surface, the conductive side surface and the conductive inclined plane of the conductive groove; the two edge parts are respectively arranged at the top of the side part and the top of the inclined plane part.

7. The device for spreading the conductive paste on the isolating switch according to claim 6, wherein the telescopic shaft is inserted into the electromagnet, the electromagnet is installed on the first spreading supporting plate, the electromagnet is powered on to drive the telescopic shaft to move in a direction away from the spreading belt, and the electromagnet is powered off after the spreading belt moves to the maximum position, so that the spreading belt is pulled reversely by the tension spring; the power supply line of the electromagnet is connected in series with the contactor, so that the contactor is used for controlling the on-off of the electromagnet.

8. The device for coating the conductive paste on the isolating switch according to claim 6, wherein a guide screw rod is axially slidably mounted on the coating top plate, the top of the guide screw rod penetrates through the coating top plate and is screwed and assembled with a limit nut through threads, so that the guide screw rod cannot penetrate through the coating top plate downwards, the bottom of the guide screw rod penetrates through the coating top plate and is then assembled and fixed with a storage box of the paste supply assembly, the paste supply assembly further comprises an opening block and a sealing plug, a storage flange is arranged on the outer side of the storage box, a hollow storage cavity is arranged inside the storage box, a filling hole is formed in the top of the storage cavity, a paste discharge groove is formed in the bottom of the storage cavity, two opening blocks are mounted in the paste discharge groove, a paste discharge channel is formed between the two opening blocks, and the bottom of the paste discharge channel is.

9. The device for applying conductive paste to an isolating switch according to claim 8, wherein a portion of the lead screw between the applying top plate and the storage box is covered with an applying compression spring for applying a downward pressing force to the storage box, thereby ensuring the storage box to press the applying band.

10. The device for spreading the conductive paste on the isolating switch according to claim 9, wherein the bottom of the storage box is engaged and attached to the spreading band, thereby pressing the spreading band in the conductive groove.

Images