CN215299090U - Safety switch for high-voltage distribution - Google Patents

Abstract

The utility model discloses a safety switch of high-voltage distribution relates to power switch technical field, which comprises a base, be fixed with the protection casing on the base, the top activity of protection casing runs through have with base looks articulated electrically conductive switch, electrically conductive switch's the outside is fixed with the installing frame, two installation cavities have been seted up to the inside symmetry of framework of installing frame, the top of installing frame is fixed with the handle subassembly, spacing subassembly is all installed to the both sides of installing frame, carry out the transmission through the trigger mechanism that is located the installation cavity inside between spacing subassembly and the handle subassembly and be connected. The utility model discloses make the active position of the electrically conductive switch in the switching off state in the protection casing restrict to prevent to receive external force mistake and touch or shake and make the safety switch of high voltage distribution close, be favorable to avoiding causing the emergence of incident, improved the degree of safety when using.

Description

Safety switch for high-voltage distribution

Technical Field

The utility model relates to a power switch technical field specifically is a safety switch of high-voltage distribution.

Background

The power switch is a common power device for controlling the on-off of a circuit, for example, a safety switch for high-voltage power distribution is also called a knife switch, and the knife switch is a switch type which is most used in high-voltage switch electric appliances because the working principle and the structure of the device are simple and are generally used.

As in the prior patent publications: CN206293342U, the name of which is "safe knife switch", which includes an insulating knife holder, conductive clips, conductive blades and an insulating handle, two voltage-reducing control boxes are arranged between the two conductive clips oppositely arranged on the insulating knife holder, a blade gap convenient for the conductive blades to move up and down is arranged between the two voltage-reducing control boxes, voltage-reducing conductive contacts matched for use are arranged at the opposite sides of the two voltage-reducing control boxes, the two voltage-reducing conductive contacts are arranged in parallel with the two corresponding conductive clips, a gap plugging device is also arranged between the two voltage-reducing control boxes, the gap plugging device is arranged below the voltage-reducing conductive contacts, and a voltage-reducing module is packaged in one of the voltage-reducing control boxes; after maintenance is finished, the conductive blade is firstly contacted with the voltage reduction conductive contact, safety voltage is generated on the power-off bus, early warning is carried out on maintenance personnel, after the delay time, the blade gap is opened, the conductive blade is connected with the bus, and therefore high-voltage electric shock of the maintenance personnel on the maintenance side is prevented, and the electric power accident is favorably reduced.

There is the weak point among the prior art to lie in, for example in the noisy water and electricity construction environment of people's hand, because the safety switch of high-voltage distribution does not have disconnection self-locking function, when the safety switch of high-voltage distribution was in the off-state, receive external force mistake to touch or vibrations easily and make the safety switch of high-voltage distribution close the floodgate closure to cause the emergence of incident, consequently for solving above-mentioned problem, we propose a safety switch of high-voltage distribution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses make the active position of the electrically conductive switch in the switching off state in the protection casing restrict to prevent to receive external force mistake and touch or shake and make the safety switch of high voltage distribution close, be favorable to avoiding causing the emergence of incident, improved the degree of safety when using.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a safety switch of high voltage distribution, includes the base, be fixed with the protection casing on the base, the top activity of protection casing runs through have with base looks articulated electrically conductive switch, the outside of electrically conductive switch is fixed with the installing frame, two installation cavities have been seted up to the inside symmetry of framework of installing frame, the top of installing frame is fixed with the handle subassembly, spacing subassembly is all installed to the both sides of installing frame, carry out the transmission through the trigger mechanism that is located the installing cavity inside between spacing subassembly and the handle subassembly and be connected.

Preferably, the top of the protective cover is provided with an opening for the movable penetration of the conductive disconnecting link, and the top of the opening is covered with an insulating plate fixed with the mounting frame.

Preferably, an electrically conductive tool holder matched with the electrically conductive knife switch is fixed on the inner side wall of the protective cover.

Preferably, the handle assembly comprises a handle frame fixed with the top of the mounting frame, and a movable beam is movably mounted on the frame body of the handle frame.

Preferably, the limiting assembly comprises a mounting hole which is formed in the side face of the mounting frame and communicated with the mounting cavity, a limiting column is movably inserted in the mounting hole, the limiting column is elastically reset and connected with the mounting hole, and one end of the limiting column is matched with a clamping groove formed in the inner wall of the protective cover.

Preferably, the trigger mechanism is including being located the inside haulage rope of installation cavity, the one end and the walking beam of haulage rope are fixed mutually, the other end of haulage rope is fixed with the concave surface piece that slides the joint in the installation cavity, the one end of concave surface piece is fixed mutually through the extension spring and the inner wall of installation cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, carry out the spacing subassembly of mating reaction with the protection casing through setting up on electrically conductive knife-switch, thereby make the active position of electrically conductive knife-switch in the switching off state in the protection casing restrict, thereby prevent to receive external force mistake and touch or shake and make the safety switch of high voltage distribution close, be favorable to avoiding causing the emergence of incident, and under handle subassembly and trigger mechanism's effect, make the spacing action of spacing subassembly can remove when really closing a floodgate in needs, whole process operation is simple and convenient, the degree of safety is improved, and the electric switch has good practical meaning.

Drawings

Fig. 1 is a schematic perspective view of a safety switch for high voltage power distribution according to the present invention;

fig. 2 is a schematic view of a sectional structure of a protective cover of a safety switch for high voltage power distribution according to the present invention;

fig. 3 is a schematic diagram of a front structure of a conductive disconnecting link of a safety switch for high voltage power distribution according to the present invention;

FIG. 4 is an enlarged view of the point A in FIG. 3 according to the present invention;

fig. 5 is the utility model relates to a high voltage distribution's safety switch's spacing post tip structure sketch map.

In the figure: 1. a base; 2. a protective cover; 3. a conductive knife switch; 4. installing a frame; 5. a mounting cavity; 6. a handle assembly; 7. a limiting component; 8. a trigger mechanism; 9. an opening; 10. an insulating plate; 11. a conductive tool holder; 12. a handle frame; 13. a movable beam; 14. mounting holes; 15. a limiting column; 16. a clamping groove; 17. a hauling rope; 18. a concave surface block; 19. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a safety switch for high voltage power distribution, which comprises a base 1, a protective cover 2 fixed on the base 1, the protective cover 2 being an insulating semicircular protective cover, a conductive knife switch 3 hinged to the base 1 movably penetrating the top of the protective cover 2, a mounting frame 4 fixed on the outer side of the conductive knife switch 3, two mounting cavities 5 symmetrically arranged inside the frame body of the mounting frame 4, the mounting cavities 5 being L-shaped distributed inside the mounting frame 4 along with the frame body, a handle assembly 6 fixed on the top of the mounting frame 4 for controlling the rotation of the conductive knife switch 3, facilitating the switching-on and switching-off operations, a limiting assembly 7 installed on both sides of the mounting frame 4 for limiting the position of the conductive knife switch 3 in the switching-off state, the limiting assembly 7 being in transmission connection with the handle assembly 6 through a trigger mechanism 8 located inside the mounting cavity 5, thereby facilitating the control of the handle assembly 6 over the stop assembly 7 via the trigger mechanism 8.

In the in-service use process, when electrically conductive switch 3 is in the position of opening a circuit, spacing subassembly 7 restricts electrically conductive switch 3 the active position in protection casing 2 this moment, thereby prevent to receive external force mistake and touch or shake and make the safety switch of high-pressure distribution close a switch on the closure, be favorable to avoiding causing the emergence of incident, when needs are relieved and are injectd and close a switch on, handle assembly 6 makes spacing subassembly 7 take place the shrink under trigger mechanism 8's effect this moment, thereby relieve spacing effect, this moment the side can remove electrically conductive switch 3, accomplish the action of closing a switch on.

Wherein, the opening 9 that is used for the activity of electrically conductive switch 3 to run through is seted up at protection casing 2 top, and the radian numerical value of opening 9 is less than the third of protection casing 2 radian numerical value, and opening 9's top has cup jointed the insulation board 10 of fixing mutually with installing frame 4 to can cover opening 9, be favorable to preventing that outside foreign matter from getting into the inside of protection casing 2, further increase its safe effect simultaneously.

Wherein, the inside wall of protection casing 2 is fixed with the electrically conductive cutter holder 11 with electrically conductive switch 3 looks adaptation, and electrically conductive cutter holder 11 carries out fixed mounting through the 2 lateral walls of mounting panel perpendicular to protection casing to ensure that electrically conductive switch 3 and electrically conductive cutter holder 11 can carry out the joint, keep circuit in the access state.

Wherein, handle subassembly 6 including with 4 top looks fixed handle frames 12 of installing frame, movable mounting has walking beam 13 in the framework of handle frame 12, and the opening is seted up to the tip of walking beam 13, cup joints with handle frame 12 through the opening activity, in the use, when holding handle frame 12, can remove along handle frame 12 to walking beam 13 simultaneously.

Wherein, the limiting component 7 comprises a mounting hole 14 which is arranged on the side surface of the mounting frame 4 and is communicated with the mounting cavity 5, a limiting column 15 is movably inserted in the mounting hole 14, one end of the limiting column 15 is a bevel end, the contact area with the inner wall of the protective cover 2 is reduced, the sliding resistance is reduced, the limiting column 15 is elastically reset and connected with the mounting hole 14, specifically, at least three long grooves which are uniformly distributed are arranged on the hole wall of the mounting hole 14, a convex block which is fixed with the limiting column 15 is slidably clamped in the long grooves, and the convex block is connected with the long grooves through a spring, so that the limiting column 15 always keeps the trend of moving towards the mounting cavity 5, one end of the limiting column 15 is matched with a clamping groove 16 which is arranged on the inner wall of the protective cover 2, in the actual limiting process, the limiting column 15 is in a compression state under the extrusion action of the trigger mechanism 8, the limiting column 15 extends out of the mounting frame 4 and is in splicing fit with the corresponding clamping groove 16.

Wherein, the trigger mechanism 8 includes the haulage rope 17 located inside the installation cavity 5, the bending part of the haulage rope 17 is provided with a rotating roller rotatably installed with the installation cavity 5, thereby facilitating the change of the direction of the haulage rope 17, one end of the haulage rope 17 is fixed with the movable beam 13, the other end of the haulage rope 17 is fixed with a concave block 18 sliding and clamping in the installation cavity 5, the concave block 18 includes a block body matched with the inner wall of the installation cavity 5, one side of the block body close to the limit post 15 is provided with a chamfer groove, namely, the inner wall surface of the groove body is an arc surface, one end of the concave block 18 is fixed with the inner wall of the installation cavity 5 through a tension spring 19, in the actual use process, when the haulage rope 17 pulls the concave block 18, the tension spring 19 is stretched and deformed, thereby storing force for the reset of the concave block 18, when the groove on one side of the concave block 18 is in the same straight line with the limit post 15, the limit post 15 is contacted with the groove on one side of the concave block 18, spacing post 15 tip can break away from joint groove 16 to remove spacing effect, when haulage rope 17's pulling force was eliminated, concave surface piece 18 recovered to initial position this moment, and the plane portion on the concave surface piece 18 extrudes spacing post 15 again, makes spacing post 15 stretch out and carry out the adaptation joint with joint groove 16.

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

Claims (6)

1. A safety switch for high-voltage power distribution, comprising a base (1), characterized in that: be fixed with protection casing (2) on base (1), the top activity of protection casing (2) runs through have with base (1) looks articulated electrically conductive switch (3), the outside of electrically conductive switch (3) is fixed with installing frame (4), two installation cavity (5) have been seted up to the inside symmetry of framework of installing frame (4), the top of installing frame (4) is fixed with handle subassembly (6), spacing subassembly (7) are all installed to the both sides of installing frame (4), carry out the transmission through trigger mechanism (8) that are located installing cavity (5) inside between spacing subassembly (7) and handle subassembly (6) and be connected.

2. A safety switch for high voltage power distribution according to claim 1, characterized in that: the top of the protective cover (2) is provided with an opening (9) for the movable penetration of the conductive disconnecting link (3), and the top of the opening (9) is covered with an insulating plate (10) fixed with the mounting frame (4).

3. A safety switch for high voltage power distribution according to claim 1, characterized in that: and a conductive tool holder (11) matched with the conductive switch (3) is fixed on the inner side wall of the protective cover (2).

4. A safety switch for high voltage power distribution according to claim 1, characterized in that: the handle assembly (6) comprises a handle frame (12) fixed to the top of the mounting frame (4), and a movable beam (13) is movably mounted on the frame body of the handle frame (12).

5. A safety switch for high voltage power distribution according to claim 1, characterized in that: spacing subassembly (7) including offer mounting frame (4) side and with mounting cavity (5) be linked together mounting hole (14), the inside activity of mounting hole (14) is pegged graft and is had spacing post (15), carry out the elasticity between spacing post (15) and mounting hole (14) and reset and be connected, the one end of spacing post (15) and offer joint groove (16) looks adaptation in protection casing (2) inner wall.

6. A safety switch for high voltage power distribution according to claim 4, characterized in that: trigger mechanism (8) are including being located haulage rope (17) of installation cavity (5) inside, the one end and walking beam (13) of haulage rope (17) are fixed mutually, the other end of haulage rope (17) is fixed with concave piece (18) that slide joint in installation cavity (5), the inner wall of extension spring (19) and installation cavity (5) is passed through to the one end of concave piece (18) is fixed mutually.

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