GN10 high-voltage isolating switch with large clamping force

Abstract

The utility model relates to a large clamping force GN10 high voltage isolation switch, comprising a pedestal, the pedestal is provided with a wire inlet end and a wire outlet end, the wire inlet end and the wire outlet end are respectively connected with a wire inlet contact and a wire outlet contact, the end portion of the wire inlet contact is hinged with a knife switch which is connected with the wire outlet contact, the knife switch comprises a substrate, a pressing plate and a driving unit, one end of the pressing plate is fixed to the base plate through a bolt, and the other end of the pressing plate makes contact with the driving unit to control the distance between the pressing plate and the base plate. According to the isolating switch, the substrate is pressed by the pressing plate, and the knife switch is firmly pressed on the contact, so that the tightness of the connection between the knife switch and the contact is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of disconnecting switch, specifically to a big clamping force GN10 high voltage disconnecting switch. BACKGROUND

[0002] The high voltage disconnecting switch is an important switch electric appliance in the electrical system of power plant and transformer substation; its main function is: ensuring the safety of high voltage electric appliance and device during the maintenance work, and playing the role of isolating voltage.

[0003] The existing high voltage disconnecting switch needs a certain gap between the contact and the contactor when closing, and the too large gap can easily affect the close connection of the contact and the contactor; therefore, how to overcome the above-mentioned technical problems and defects becomes the key problem to be solved. SUMMARY

[0004] The utility model aims at overcoming the defects described in the background art, and realizes a big clamping force GN10 high voltage disconnecting switch, which presses the base plate with the pressing plate, and firmly presses the contactor on the contact, so as to ensure the close connection of the contactor and the contact.

[0005] In order to realize the above-mentioned utility model purposes, the technical scheme of the utility model is as follows: a big clamping force GN10 high voltage disconnecting switch, which comprises a base, a wire inlet end and a wire outlet end are installed on the base, the wire inlet end and the wire outlet end are respectively connected with a wire inlet contact and a wire outlet contact, the wire inlet contact end is hinged with a contactor connected with the wire outlet contact, the contactor comprises a base plate, a pressing plate and a driving unit, one end of the pressing plate is fixed on the base plate through a bolt, the other end is in contact with the driving unit, and the distance between the pressing plate and the base plate is controlled.

[0006] Further, the wire inlet end and the wire outlet end are respectively fixedly connected with the base through insulators.

[0007] Further, the base plate is a U-shaped groove plate, four base plates are arranged on both sides of the wire inlet contact in pairs, and the base plates arranged in pairs are fixedly connected through long bolts.

[0008] Further, one end of the base plate close to the wire inlet contact is rotatably connected with the wire inlet contact through a long bolt.

[0009] Further, the driving unit comprises a horizontal shaft, a chain shaft and a jacking rod, the two ends of the horizontal shaft are rotatably connected with the middle part of the base plate, and the middle parts of the two horizontal shafts are connected through the chain shaft.

[0010] Further, the middle part of the horizontal shaft is a hollow structure, the jacking rod is arranged on both sides of the chain shaft in the horizontal shaft, the outside of the jacking rod is in contact with the inside of the pressing plate, and a tapered extrusion table is arranged on the chain shaft in contact with the horizontal shaft.

[0011] Further, the lower end of the chain shaft is connected with the swing lever through the insulating support, the swing lever is fixed on the driving shaft, and a driving lever clamping hole is formed in the end of the driving shaft.

[0012] The large clamping force GN10 high-voltage disconnecting switch has the advantages that:

[0013] The large clamping force GN10 high-voltage disconnecting switch adopts the driving unit to outwardly press the plate, the plate applies pressure to the end portion of the base plate, the contact is tightly pressed on the contact, the contact and the contact are tightly combined, the stable and tight connection after closing is ensured, the closing is not affected, and the conflict problem of the closing and the tight connection is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the large clamping force GN10 high-voltage disconnecting switch of the utility model,

[0015] Figure 2 is Figure 1 a structural schematic view of the base plate,

[0016] In the figure, 1 is a base, 2 is an incoming line end, 3 is an incoming line contact, 4 is an insulator, 5 is an outgoing line contact, 6 is an outgoing line end, 7 is a base plate, 8 is a pressing plate, 9 is a bolt head, 10 is a long bolt, 11 is a horizontal shaft, 12 is a tapered extrusion table, 13 is a chain shaft, 14 is a top head, 15 is an insulating support, 16 is a swing lever, and 17 is a driving shaft. DETAILED DESCRIPTION

[0017] The large clamping force GN10 high-voltage disconnecting switch of the utility model will be described in more detail in combination with the drawings and through specific embodiments.

[0018] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] Referring to Figure 1The high-pressure disconnector with large clamping force GN10 of the embodiment adopts a pressing plate to press a base plate, and firmly presses a contact on a contact, so as to ensure the tightness of the contact and the contact. The high-pressure disconnector with large clamping force GN10 mainly comprises a base 1, a wire inlet end 2 and a wire outlet end 6 are installed on the base 1, the wire inlet end 2 and the wire outlet end 6 are fixedly connected with the base 1 through insulators 4 respectively, the wire inlet end 2 and the wire outlet end 6 are connected with a wire inlet contact 3 and a wire outlet contact 5 respectively, and the wire inlet contact 3 is hingedly connected with a contact on the end of the wire outlet contact 5.

[0020] The contact comprises a base plate 7, a pressing plate 8 and a driving unit, the base plate 7 is a U-shaped groove plate, four base plates 7 are arranged on both sides of the wire inlet contact 3 in pairs, the base plates 7 arranged in pairs are fixedly connected through long bolts 10, one end of the base plate 7 close to the wire inlet contact 3 is rotatably connected with the wire inlet contact 3 through a long bolt 10, one end of the pressing plate 8 is fixed on the base plate 7 through a bolt, and the other end is in contact with the driving unit, so as to control the distance between the pressing plate 8 and the base plate 7.

[0021] The driving unit comprises a horizontal shaft 11, a chain shaft 13 and a top rod 14, both ends of the horizontal shaft 11 are rotatably connected with the middle part of the base plate 7, the middle parts of the two horizontal shafts 11 are connected through the chain shaft 13, the middle part of the horizontal shaft 11 is a hollow structure, the top rod 14 is arranged on both sides of the chain shaft 13 in the horizontal shaft 11, the outside of the top rod 14 is in contact with the inside of the pressing plate 8, the chain shaft 13 is provided with a tapered extrusion table 12 at the position in contact with the horizontal shaft 11, one end of the top rod 14 close to the tapered extrusion table 12 is a bevel, when the tapered extrusion table 12 moves downward, the top rod 14 moves outward under the action of the extrusion force, the horizontal shaft 11 is provided with a locking assembly (the locking assembly is prior art, and the detailed structure is not described here) of the tapered extrusion table 12, which is used for locking the position of the tapered extrusion table, the lower end of the chain shaft 13 is connected with a swing rod 16 through an insulating support 15, the swing rod 16 is fixed on a driving shaft 17, and the end of the driving shaft 17 is provided with a driving rod clamping hole.

[0022] In use, the driving rod is inserted into the driving rod clamping hole of the driving shaft, the driving rod is pulled to make the driving shaft rotate, the swing rod is swung clockwise, the contact is pulled to swing clockwise through the insulating support, and the contact is in contact with the wire outlet contact. When the driving rod is continuously swung clockwise, the tapered extrusion table moves downward, the top rod is extruded to both sides, the top rod extrudes the pressing plate in the middle part of the base plate outward, one end of the pressing plate close to the wire outlet contact is pressed to the base plate, so that the base plate is in close contact with the wire outlet contact, and the stability of the connection is ensured.

[0023] Unless otherwise defined, technical terms or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The use of "including", "comprising" or "having" and the like herein specifies the presence of stated elements or integers or the like but does not preclude the presence or addition of one or more other elements or integers. The use of "connected", "coupled", "attached" or the like herein does not necessarily denote a direct connection or attachment, but can also denote an indirect connection or attachment.

[0024] The exemplary embodiments of this application are described above in detail with reference to the preferred embodiments, however, it is understood that various modifications and changes can be made to the described embodiments without departing from the spirit and scope of the application. It is therefore intended that the application not be limited to the described embodiments, but that the application can also cover modifications and changes in the full scope of the appended claims.

Claims

1. A large clamping force GN10 high-voltage disconnector, comprising a base, a line-in end and a line-out end are installed on the base, characterized in that: The incoming line end and the outgoing line end are respectively connected with an incoming line contact and an outgoing line contact, the end of the incoming line contact is hingedly connected with a switch blade connected with the outgoing line contact, the switch blade comprises a base plate, a pressing plate and a driving unit, one end of the pressing plate is fixed on the base plate by a bolt, the other end is in contact with the driving unit, and the distance between the pressing plate and the base plate is controlled.

2. The high-voltage disconnector according to claim 1, characterized in that: The incoming line end and the outgoing line end are respectively fixedly connected with the base through insulators.

3. The high voltage disconnector according to claim 1, characterized in that: The base plate is a U-shaped groove plate, and two of the four base plates are arranged on the two sides of the incoming line contact in opposition to each other, and the two base plates arranged in opposition to each other are fixedly connected through long bolts.

4. The high-voltage disconnector according to claim 3, characterized in that: One end of the base plate close to the incoming line contact is rotatably connected with the incoming line contact through a long bolt.

5. The GN10 high-voltage disconnector with large clamping force according to claim 1, characterized in that: The driving unit comprises a horizontal shaft, a chain shaft and a top rod, the two ends of the horizontal shaft are rotatably connected with the middle part of the base plate, and the middle parts of the two horizontal shafts are connected through the chain shaft.

6. The high voltage disconnector according to claim 5, characterized in that: The middle part of the horizontal shaft is a hollow structure, the top rod is arranged on the two sides of the chain shaft in the horizontal shaft, the outside of the top rod is in contact with the inside of the pressing plate, and a tapered extrusion table is arranged on the chain shaft in contact with the horizontal shaft.

7. The high voltage disconnector according to claim 5, characterized in that: The lower end of the chain shaft is connected with a swing rod through an insulating support, the swing rod is fixed on a driving shaft, and a driving rod clamping hole is formed in the end of the driving shaft. The lower end of the chain shaft is connected with a swing rod through an insulating support, the swing rod is fixed on a driving shaft, and a driving rod clamping hole is formed in the end of the driving shaft.

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