CN222530300U - Safety manual operating device for isolating switch - Google Patents

Abstract

The utility model discloses a safe manual operation device of an isolating switch, and relates to the technical field of isolating switches. The slot hole is seted up to the one end of pressing head and inside swing joint has the connecting rod, the second telescopic spring of bottom fixedly connected with of pressing head, the draw-in groove has been seted up on the surface of pressing post, the pressing post extrusion that the turning arm other end top set up is at the top of turning arm, because the decline of pressing head drives connecting rod bottom fixed connection's fixture block and slides in the inside of draw-in groove, there is the length difference between the bottom of draw-in groove and the bottom when sliding, pressing post extrudees the turning arm downwards under the self elasticity effect of second telescopic spring, make the turning arm bottom fixed connection's of switch-on one end movable contact break away from the inside disconnect circuit of stationary contact, need carry out the secondary to the same end and press and just switch on the power, guarantee that the electric power workman of maintenance and construction can not be because the direct switch-on of misoperation when the circuit is cut off.

Description

Safety manual operating device for isolating switch

Technical Field

The utility model relates to the technical field of isolating switches, in particular to a safe manual operating device of an isolating switch.

Background

The isolating switch has the insulation distance meeting the specified requirement and obvious disconnection mark between contacts when in the separated position, can bear current under normal loop condition and current under abnormal condition (such as short circuit) within specified time when in the closed position, the grounding and non-grounding of the grounding disconnecting switch are not allowed to have operation errors when the existing isolating switch is operated in the equipment maintenance process, if the operation is wrong, serious safety accidents are caused, and the isolating switch is one of the causes of serious accidents in the electric power system, but most of isolating switches are not provided with safety protection structures, and have great threat to the personal safety of electric workers for maintenance and construction.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a safe manual operation device for a disconnecting link, which solves the problems that the ground disconnecting link is not allowed to have operation errors when being grounded or not grounded, if the operation errors occur, serious accidents are caused, and the device is one of the reasons for serious accidents in a power system, but most of disconnecting links do not have a safety protection structure and have great threat to the personal safety of electric workers for maintenance and construction.

In order to achieve the purpose, the utility model is realized through the following technical scheme that the isolating switch is a safe manual operation device. Including the casing subassembly, the inside of casing subassembly is provided with prevents the mistake and touches the subassembly, prevent the mistake and touch the subassembly and include pressing head and fixed block, the outside arch all around of pressing head has the fixed plate, the bottom fixedly connected with extension spring of going up the fixed plate, slotted hole and inside swing joint have been seted up to the one end of pressing head, the bottom fixedly connected with second extension spring of pressing head, the bottom fixedly connected with of second extension spring presses the post, the draw-in groove has been seted up on the surface of pressing the post, the inside cavity of fixed block and top fixedly connected with third extension spring, the bottom fixedly connected with extension post of third extension spring, the both ends downwardly extending of fixed block has the backup pad, the bottom of backup pad is provided with the connecting axle, the outside rotation of connecting axle is connected with the deflector, the extension of the both ends of deflector has the turning arm, the bottom fixedly connected with movable contact of turning arm.

Preferably, the shell assembly comprises a switch shell, a fixing plate is protruded on the top of the switch shell, and a fixed contact is fixedly connected to the bottom of an inner cavity of the switch shell.

Preferably, the top of the telescopic spring is fixedly connected to the bottom of the upper fixing plate, and the bottom of the telescopic spring is fixedly connected to the top of the fixing plate.

Preferably, the fixed block is fixedly connected to the top of the inner cavity of the switch shell.

Preferably, the bottom of the connecting rod is provided with a clamping block in a protruding mode, and the clamping block is connected inside the clamping groove in a sliding mode.

Preferably, the top of the steering plate is conical, and the steering plate is attached to the bottom of the telescopic column.

Preferably, the middle part of the clamping groove is convex, and the two ends of the clamping groove are inclined downwards.

The utility model provides a safe manual operation device of a disconnecting switch. Compared with the prior art, the method has the following beneficial effects:

1. The utility model provides a disconnecting switch safety manual operating means, through pressing the press head, when the moving contact joint of turning arm bottom fixed connection is in the inside switch-on of static contact, the press post that the turning arm other end top set up extrudes at the top of turning arm, because the decline of press head drives connecting rod bottom fixed connection's fixture block and slides in the inside of draw-in groove, slide to the top from the bottom of draw-in groove, there is the length difference between the bottom of draw-in groove and the bottom when sliding, when the fixture block joint is in the top of draw-in groove, the press post extrudees the turning arm downwards under the self elasticity effect of second expansion spring, make the moving contact of turning arm bottom fixed connection of switch-on one end break away from the inside disconnect circuit of static contact, press the change of switch-on circuit one end press head, need break off or switch-on one end press down when the other end of switch-on power is in the state of rising, continue to operate switch-on power, guarantee maintenance and the electric power workman of construction can not be because of misoperation directly switch-on when the circuit is disconnected.

2. A safety manual operation device of an isolating switch is characterized in that one end of a crank arm is pressed, the top of a steering plate is conical, when one end of the crank arm is pressed, the top of the steering plate butts against the bottom of a telescopic column, the telescopic column which is extruded retracts to the inside of a fixed block under the contraction action of a third telescopic spring inside the telescopic column, the steering plate rotates under the fixed action of a connecting shaft until a movable contact fixedly connected with the bottom of the other end of the crank arm is clamped into the inside of a fixed contact, the pressing head at one end of a closed circuit is prevented from being pressed, and the crank arm is not stressed and is separated from the inside of the fixed contact.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic structural diagram of an anti-false touch assembly according to the present utility model.

FIG. 4 is a detailed view of the anti-false touch assembly of the present utility model.

The device comprises a shell assembly, a 2-error-touch-preventing assembly, a switch shell, a 12, a fixed plate, a 13, a fixed contact, a 21, a pressing head, a 22, a telescopic spring, a 23, a connecting rod, a 24, an upper fixed plate, a 25, a second telescopic spring, a 26, a pressing column, a 27, a clamping groove, a 28, a clamping block, a 29, a fixed block, a 210, a third telescopic spring, a 211, a telescopic column, a 212, a steering plate, a 213, a supporting plate, a 214, a moving contact, a 215, a connecting shaft, a 216 and a crank arm.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical scheme of a safety manual operation device for an isolating switch. Comprises a shell component 1, an anti-false touch component 2 is arranged in the shell component 1, the anti-false touch component 2 comprises a pressing head 21 and a fixed block 29, an upper fixed plate 24 is outwards protruded around the pressing head 21, the bottom of the upper fixed plate 24 is fixedly connected with a telescopic spring 22, the telescopic spring 22 is used for driving the pressing head 21 to restore to the original position after the pressing head 21 is pressed to change the sliding position of a protruded clamping block 28 at the top of a connecting rod 23 at one end of the pressing head 21 in a clamping groove 27, one end of the pressing head 21 is provided with a slotted hole and is internally and movably connected with the connecting rod 23, the connecting rod 23 is used for changing the clamping position of the top clamping block 28 in the clamping groove 27 when the pressing head 21 is pressed, so as to change the extrusion of a pressing column 26 to the top of a crank arm 216, the bottom of the pressing head 21 is fixedly connected with a second telescopic spring 25, and the second telescopic spring 25 is used for clamping the bottom clamping block 28 in different positions in the clamping groove 27, in order to reach the distance that the pressing column 26 moves in the vertical direction inside the switch shell 11, the bottom of the second telescopic spring 25 is fixedly connected with the pressing column 26, the surface of the pressing column 26 is provided with a clamping groove 27, the top of the groove part of the clamping groove 27 is upwards protruded, a protruded clamping block 28 at the bottom of the connecting rod 23 can be clamped at different height-adjusting bottom pressing columns 26 to extrude the top of the turning arm 216, the inside of the fixed block 29 is hollow, the top of the fixed block 29 is fixedly connected with a third telescopic spring 210, the third telescopic spring 210 can shrink inwards when the top of the steering plate 212 abuts against the telescopic column 211, the telescopic column 211 is retracted into the fixed block 29, the steering plate 212 is convenient to change the clamping direction of the bottom moving contact 214, the bottom of the third telescopic spring 210 is fixedly connected with the telescopic column 211, the two ends of the fixed block 29 downwards extend to support plates 213, the bottom of backup pad 213 is provided with connecting axle 215, and the outside of connecting axle 215 rotates and is connected with steering plate 212, and steering plate 212's both ends extend and have turning arm 216, and turning arm 216's bottom fixedly connected with moving contact 214, when moving contact 214 and fixed contact 13 joint, the circuit is energized, and when moving contact 214 breaks away from with fixed contact 13, the circuit disconnection.

Referring to fig. 1-2, the housing assembly 1 includes a switch housing 11, a fixing plate 12 protrudes from the top of the switch housing 11, and a fixed contact 13 is fixedly connected to the bottom of an inner cavity of the switch housing 11.

Referring to fig. 1-4, the top of the extension spring 22 is fixedly connected to the bottom of the upper fixing plate 24, the bottom of the extension spring 22 is fixedly connected to the top of the fixing plate 12, the fixing block 29 is fixedly connected to the top of the inner cavity of the switch housing 11, the bottom of the connecting rod 23 is protruded with a clamping block 28, the clamping block 28 is slidably connected to the inside of the clamping groove 27, the top of the steering plate 212 is conical, the steering plate 212 is attached to the bottom of the extension column 211, and the middle of the clamping groove 27 is protruded and two ends of the steering plate are inclined downwards.

When the circuit is required to be disconnected, the pressing head 21 connected with one end of the power supply is pressed, the connecting rod 23 is clamped at the bottom of the clamping groove 27 in a sliding manner when the circuit is required to be disconnected, the pressing column 26 rises, when the movable contact 214 fixedly connected with the bottom of the crank arm 216 is clamped at the inner part of the fixed contact 13, the pressing column 26 arranged at the top of the other end of the crank arm 216 presses the top of the crank arm 216, the falling of the pressing head 21 drives the clamping block 28 fixedly connected with the bottom of the connecting rod 23 to slide in the clamping groove 27, the clamping block 28 slides from the bottom of the clamping groove 27 to the upper side, when the sliding is performed, the clamping block 28 is clamped above the clamping groove 27, the pressing column 26 presses the movable contact 214 fixedly connected with the bottom of the crank arm 216 under the self elastic action of the second telescopic spring 25, and is separated from the inner part of the fixed contact 13, when the circuit is required to be connected, the pressing head 21 is pressed, the clamping block 28 protruding from the bottom of the connecting rod 23 slides in the inner part of the clamping groove 27 until the clamping groove 27 is clamped at the bottom of the clamping groove 27, the clamping block 26 is clamped at the bottom of the clamping groove 27, and the second telescopic spring 25 is pressed, and the pressing column 23 is pressed to the inner part of the fixed contact 13, and the pressing head 214 connected with the bottom of the crank arm 216 is connected with the inner part of the fixed contact, and the circuit is disconnected.

In this embodiment, a safety manual operation device for a disconnecting switch adopts the prior art for its own structural features and working principles among the above components, and will not be described in detail here.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The safe manual operating device of the isolating switch comprises a shell assembly (1) and is characterized in that an anti-false touch assembly (2) is arranged in the shell assembly (1);

The anti-misoperation component (2) comprises a pressing head (21) and a fixed block (29), an upper fixed plate (24) is outwards protruded around the pressing head (21), the bottom of the upper fixed plate (24) is fixedly connected with a telescopic spring (22), a slotted hole is formed in one end of the pressing head (21) and is internally and movably connected with a connecting rod (23), a second telescopic spring (25) is fixedly connected with the bottom of the pressing head (21), a pressing column (26) is fixedly connected with the bottom of the second telescopic spring (25), a clamping groove (27) is formed in the surface of the pressing column (26), a third telescopic spring (210) is fixedly connected with the inside hollow top of the fixed block (29), a telescopic column (211) is fixedly connected with the bottom of the third telescopic spring (210), supporting plates (213) are downwards extended at two ends of the fixed block (29), connecting shafts (215) are arranged at the bottom of the supporting plates (213), steering plates (212) are rotatably connected with steering arms (212), and two steering arms (216) are fixedly connected with the bottoms of the turning arms (216).

The shell assembly (1) comprises a switch shell (11), a fixing plate (12) is arranged on the top of the switch shell (11) in a protruding mode, and a fixed contact (13) is fixedly connected to the bottom of an inner cavity of the switch shell (11).

2. The isolating switch safety manual operation device as defined in claim 1, wherein the top of the telescopic spring (22) is fixedly connected to the bottom of the upper fixing plate (24), and the bottom of the telescopic spring (22) is fixedly connected to the top of the fixing plate (12).

3. A safety manual operating device for an isolating switch according to claim 1, characterized in that the fixed block (29) is fixedly connected to the top of the inner cavity of the switch housing (11).

4. The disconnecting switch safety manual operation device according to claim 1, wherein a clamping block (28) is protruded at the bottom of the connecting rod (23), and the clamping block (28) is slidably connected inside the clamping groove (27).

5. The safety manual operation device for a disconnecting switch of claim 1, wherein the top of the steering plate (212) is conical, and the steering plate (212) is attached to the bottom of the telescopic column (211).

6. A safety manual operating device for a disconnector according to claim 4, characterized in that the middle part of the slot (27) is convex and the two ends are inclined downwards.