CN213691862U

CN213691862U - Knife switch device of outdoor isolating switch

Info

Publication number: CN213691862U
Application number: CN202022983653.XU
Authority: CN
Inventors: 陈张根
Original assignee: Yuyao Chaoli Electric Appliance Co ltd
Current assignee: Yuyao Chaoli Electric Appliance Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-13
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to the technical field of isolating switches, in particular to a disconnecting link device of an outdoor isolating switch, which comprises a mounting rack, wherein the side wall of the mounting rack is provided with an upper insulating pile and a lower insulating pile, the lower insulating pile is provided with a connecting seat, and a disconnecting link rod is rotatably connected on the connecting seat; a contact assembly is mounted on the upper insulating pile, and the upper end of the knife switch rod is matched with the contact assembly; the contact assembly comprises a contact seat, an installation groove is arranged in the middle of the contact seat, and a static contact is connected in the installation groove in a sliding mode. The utility model provides an outdoor isolator's knife-switch device wherein improves the connection structure between moving contact and the static contact, increases the area of contact between moving contact and the static contact, and spacing part's effect in addition to improved stability and the compactness of being connected between moving contact and the static contact, effectively solved the problem that the unstable constant volume is blown off by the strong wind to be connected moving contact and static contact.

Description

Knife switch device of outdoor isolating switch

Technical Field

The utility model relates to an isolator technical field especially relates to an outdoor isolator's switch device.

Background

The isolation switch has simple working principle and structural design, is mainly applied to high-voltage switching appliances, establishes a reliable insulation gap after switching off, separates equipment or a circuit to be overhauled from a power supply by an obvious disconnection point so as to ensure the safety of maintainers and equipment, has larger usage amount and high requirement on working reliability, and is widely applied to the design, establishment, safe operation and the like of substations and power plants.

In the prior art, when a static contact and a moving contact are connected, the connection is usually unstable, particularly in windy weather, the moving contact is easily blown off from the connection position by strong wind; the connection of the moving contact and the static contact is loosened due to long-term wind blowing and sunshine, so that the contact pressure between the moving contact and the static contact is unstable, and the communication of a circuit cannot be guaranteed.

To above problem, the utility model provides an outdoor isolator's switch device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a knife switch device of outdoor isolator is provided, the problem that unstable volume is easily blown off by strong wind can be solved to the moving contact and the static contact.

(II) technical scheme

The utility model provides a technical scheme that above-mentioned technical problem adopted is: a disconnecting link device of an outdoor isolating switch comprises a mounting rack, wherein an upper insulating pile and a lower insulating pile are arranged on the side wall of the mounting rack, a connecting seat is mounted on the lower insulating pile, and a disconnecting link rod is rotatably connected to the connecting seat; and the upper insulating pile is provided with a contact assembly, and the upper end of the knife switch rod is matched with the contact assembly.

The contact assembly comprises a contact seat, an installation groove is formed in the middle of the contact seat, a static contact is connected in the installation groove in a sliding mode, and a resisting spring is connected between the static contact and the inner wall of the installation groove; the contact assembly also includes a retention member mounted on the contact block.

The limiting part comprises a first groove arranged on the inner wall of the mounting groove, a first limiting block is connected in the first groove in a sliding mode, and a first limiting spring is connected between the first limiting block and the first groove; the mounting groove is just right the inner wall of first recess is provided with the second recess, sliding connection has the second stopper in the second recess, the second stopper with be connected with the spacing spring of second between the second recess.

Preferably, a first guide plate is arranged on a side wall of the first limiting block, which is far away from the static contact, a second guide plate is arranged at a position corresponding to the second limiting block, and the first guide plate and the second guide plate form an open structure facing outward.

Preferably, an inner groove is formed in the contact seat, and two ends of the inner groove are communicated with the first groove and the second groove.

Preferably, the outer wall of the contact seat is provided with an outer groove, and a connecting groove is communicated between the outer groove and the inner groove; the contact seat is communicated with a traction groove at a position close to the outer groove, a push plate is connected in the outer groove in a sliding mode, and a traction spring is connected between the push plate and the inner wall of the traction groove.

Preferably, a first pull rope is arranged on the first limiting block, a second pull rope is arranged on the second limiting block, the first pull rope and the second pull rope penetrate through the inner groove and the connecting groove, and the tail ends of the first pull rope and the second pull rope are connected with the push plate.

Preferably, the first groove, the second groove, and the inner corner between the inner groove and the connecting groove are all provided with connectors, and the first pull rope and the second pull rope pass through the connectors.

Preferably, the inner wall of the mounting groove is symmetrically provided with sliding grooves; the bilateral symmetry of static contact is equipped with the sliding block, the sliding block be located in the sliding tray and with sliding tray sliding connection.

Preferably, a concave arc surface is arranged on the side wall of the static contact, which is far away from the resisting spring; the upper end of the disconnecting link rod is provided with a moving contact, and the moving contact is provided with a convex cambered surface matched with the concave cambered surface.

(III) advantageous effects

1. The utility model provides a pair of outdoor isolator's knife-switch device wherein improves the connection structure between moving contact and the static contact, increases the area of contact between moving contact and the static contact, and spacing part's effect in addition to improved stability and the compactness of being connected between moving contact and the static contact, effectively solved the problem that the unstable volume is easily blown off by the strong wind that moving contact and static contact are connected.

2. The utility model provides a pair of outdoor isolator's knife-switch device, wherein mutually support between each part in the spacing part for the moving contact closely meets with the static contact when closing a floodgate, and the moving contact can quick disconnect-connection, easy operation is convenient when opening a floodgate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the middle part A of the present invention;

fig. 3 is a schematic sectional view of the contact assembly according to the present invention.

Wherein: 1 mounting rack, 2 upper insulating piles, 3 lower insulating piles, 4 connecting seats, 5 knife switch rods, 50 moving contacts, 500 convex cambered surfaces, 6 contact assemblies, 61 contact seats, 62 mounting grooves, 63 fixed contacts, 630 concave cambered surfaces, 64 resisting springs, 65 limiting parts, 650 connectors, 651 first grooves, 651a first limiting blocks, 651b first limiting springs, 651c first pull ropes, 652 second grooves, 652a second limiting blocks, 652b second limiting springs, 652c second pull ropes, 653 first guide-in plates, 654 second guide-in plates, 655 inner grooves, 656 outer grooves, 6560 connecting grooves, 657 pulling grooves, 658 push plates, 659 pulling springs, 66 sliding grooves and 67 sliding blocks.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1-3, the disconnecting link device of the outdoor isolating switch comprises a mounting frame 1, wherein an upper insulating pile 2 and a lower insulating pile 3 are arranged on the side wall of the mounting frame 1, a connecting seat 4 is arranged on the lower insulating pile 3, and a disconnecting link rod 5 is rotatably connected to the connecting seat 4; the upper insulating pile 2 is provided with a contact assembly 6, the upper end of the disconnecting link rod 5 is matched with the contact assembly 6, the upper end of the disconnecting link rod 5 is provided with a moving contact 50, the upper end of the moving contact 50 is provided with an insulating rod, and the insulating rod is used for facilitating the push-pull of the disconnecting link rod 5.

The contact assembly 6 comprises a contact seat 61, an installation groove 62 is formed in the middle of the contact seat 61, a static contact 63 is connected in the installation groove 62 in a sliding mode, a resisting spring 64 is connected between the static contact 63 and the inner wall of the installation groove 62, a conductive column is arranged in the upper insulating pile 2, and the conductive column is connected with the static contact 63 through a conductive wire.

The side wall of the static contact 63 far away from the resisting spring 64 is provided with a concave arc surface 630; the moving contact 50 is provided with a convex arc surface 500 matched with the concave arc surface 630; when the moving contact 50 contacts the stationary contact 63, the convex arc 500 contacts the concave arc 630, so that the contact area between the moving contact 50 and the stationary contact 63 is enlarged, and the stability of the contact between the moving contact 50 and the stationary contact 63 is improved to a certain extent.

The inner wall of the mounting groove 62 is symmetrically provided with sliding grooves 66; sliding blocks 67 are symmetrically arranged on two sides of the fixed contact 63, and the sliding blocks 67 are positioned in the sliding grooves 66 and are in sliding connection with the sliding grooves 66; this structure makes static contact 63 can not take place the skew and drop when removing in mounting groove 62, and has guaranteed the stability when static contact 63 removes.

The contact assembly 6 further comprises a limiting component 65 arranged on the contact seat 61, and the limiting component 65 is matched with the static contact 63 and the resisting spring 64 to limit the knife switch rod 5; the limiting component 65 comprises a first groove 651 arranged on the inner wall of the mounting groove 62, a first limiting block 651a is connected in the first groove 651 in a sliding mode, and a first limiting spring 651b is connected between the first limiting block 651a and the first groove 651; a second groove 652 is formed in the inner wall, opposite to the first groove 651, of the mounting groove 62, a second limiting block 652a is connected in the second groove 652 in a sliding mode, and a second limiting spring 652b is connected between the second limiting block 652a and the second groove 652; the first limiting block 651a and the second limiting block 652a are identical in structure and aligned with each other, and under the action of the first limiting spring 651b and the second limiting spring 652b, the first limiting block 651a and the second limiting block 652a extend out of the first groove 651 and the second groove 652 and are close to the middle of the mounting groove 62, but a proper gap is left.

The side wall of the first limiting block 651a far away from the static contact 63 is provided with a first guide plate 653, the corresponding position of the second limiting block 652a is provided with a second guide plate 654, the first guide plate 653 and the second guide plate 654 are both arc structures, the first guide plate 653 and the second guide plate 654 form an open structure facing outward, the joint of the first guide plate 653 and the first limiting block 651a is a transition arc structure, and the joint of the second guide plate 654 and the second limiting block 652a is also a transition arc structure, wherein the transition arc structure enables the moving contact 50 to conveniently enter the mounting groove 62.

During switching on, the knife switch rod 5 is rotated from the position of the lower insulating pile 3 to the position of the upper insulating pile 2, the movable contact 50 is aligned with the first guide-in plate 653 and the second guide-in plate 654, then the insulating rod is pushed, the movable contact 50 enters a gap between the first limiting block 651a and the second limiting block 652a from the space between the first guide-in plate 653 and the second guide-in plate 654, the movable contact 50 presses the first limiting block 651a and the second limiting block 652a and enters the middle of the mounting groove 62 from the gap between the first limiting block 653 and the second limiting block 652a, meanwhile, the convex arc surface 500 of the movable contact 50 is in contact with the concave arc surface 630 of the fixed contact 63 and presses the fixed contact 63, so that the resisting spring 64 has a resisting effect on the fixed contact 63, and the contact between the fixed contact 63 and the movable contact; after the moving contact 50 enters the middle of the mounting groove 62, the first limiting block 651a and the second limiting block 652a are reset, so that the first limiting block is contacted with one end of the moving contact 50 far away from the convex arc surface 500, and the moving contact 50 is limited; at this moment, the moving contact 50 is located between the static contact 63 and the limiting block, the static contact 63 has a resisting effect on the moving contact 50, and the limiting block has a limiting effect on the moving contact 50, so that the static contact 63 and the moving contact 50 are connected more tightly, and the situation that the moving contact 50 is scraped off in windy weather is avoided.

The contact block 61 is provided with an inner groove 655, and both ends of the inner groove 655 are communicated with the first groove 651 and the second groove 652.

An outer groove 656 is formed in the outer wall of the contact seat 61, and a connecting groove 6560 is communicated between the outer groove 656 and the inner groove 655; a pulling groove 657 is communicated with the contact seat 61 at a position close to the outer groove 656, a push plate 658 is connected in the outer groove 656 in a sliding way, and a pulling spring 659 is connected between the push plate 658 and the inner wall of the pulling groove 657; under normal conditions, the pulling spring 659 pulls the push plate 658 such that the push plate 658 is always positioned adjacent to the pulling groove 657 and the connecting groove 6560 is positioned at the end of the push plate 658 adjacent to the pulling groove 657 where it contacts the outer groove 656.

The first stopper 651a is provided with a first pull rope 651c, the second stopper 652a is provided with a second pull rope 652c, both the first pull rope 651c and the second pull rope 652c pass through the inner groove 655 and the connecting groove 6560, and the tail ends of the first pull rope 651c and the second pull rope 652c are connected with the push plate 658.

Connectors 650 are arranged at the inner turning positions among the first groove 651, the second groove 652, the inner groove 655 and the connecting groove 6560, and the first pull rope 651c and the second pull rope 652c penetrate through the connectors 650; wherein the connector 650 can effectively prevent the first pulling rope 651c and the second pulling rope 652c from being damaged at the corners during operation.

When the brake is opened, the push plate 658 is moved in a direction away from the pulling groove 657, the push plate pulls the first pulling rope 651c and the second pulling rope 652c, the first pulling rope 651c pulls the first limiting block 651a, so that the first limiting block 651a moves in the first groove 651, the second pulling rope 652c pulls the second limiting block 652a, so that the second limiting block 652a moves in the second groove 652, so that a gap between the first limiting block 651a and the second limiting block 652a is enlarged to be enough for the movable contact 50 to enter and exit, at this time, the movable contact 50 is not limited by the limiting block, the movable contact 50 is subjected to the resisting action of the fixed contact 63, so that the movable contact 50 is popped out from the mounting groove 62 by the resisting spring 64 and the fixed contact 63, the purpose of opening the brake is achieved, and the whole operation is simple and rapid.

The utility model discloses improve the connection structure between moving contact 50 and the static contact 63, increase the area of contact between moving contact 50 and the static contact 63, the effect of spacing part 65 in addition to improved stability and the compactness of being connected between moving contact 50 and the static contact 63, effectively solved moving contact 50 and static contact 63 and be connected the easy problem that blows off by strong wind of unstable volume.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an outdoor isolator's switch device, includes mounting bracket (1), the lateral wall of mounting bracket (1) is equipped with insulation pile (2) and lower insulation pile (3), its characterized in that: a connecting seat (4) is installed on the lower insulating pile (3), and a knife switch rod (5) is rotatably connected to the connecting seat (4); a contact assembly (6) is mounted on the upper insulating pile (2), and the upper end of the knife switch rod (5) is matched with the contact assembly (6);

the contact assembly (6) comprises a contact seat (61), an installation groove (62) is formed in the middle of the contact seat (61), a static contact (63) is connected in the installation groove (62) in a sliding mode, and a resisting spring (64) is connected between the static contact (63) and the inner wall of the installation groove (62); the contact assembly (6) further comprises a limiting component (65) arranged on the contact seat (61);

the limiting component (65) comprises a first groove (651) arranged on the inner wall of the mounting groove (62), a first limiting block (651a) is connected in the first groove (651) in a sliding mode, and a first limiting spring (651b) is connected between the first limiting block (651a) and the first groove (651); a second groove (652) is formed in the inner wall, opposite to the first groove (651), of the mounting groove (62), a second limiting block (652a) is connected in the second groove (652) in a sliding mode, and a second limiting spring (652b) is connected between the second limiting block (652a) and the second groove (652).

2. The disconnecting link device of an outdoor disconnecting switch according to claim 1, wherein: a first guide plate (653) is arranged on the side wall of the first limiting block (651a) far away from the static contact (63), a second guide plate (654) is arranged at the corresponding position of the second limiting block (652a), and the first guide plate (653) and the second guide plate (654) form an open structure facing the outside.

3. The disconnecting link device of an outdoor disconnecting switch according to claim 1, wherein: an inner groove (655) is formed in the contact seat (61), and two ends of the inner groove (655) are communicated with the first groove (651) and the second groove (652).

4. The disconnecting link device of an outdoor disconnector according to claim 3, characterized in that: an outer groove (656) is formed in the outer wall of the contact seat (61), and a connecting groove (6560) is communicated between the outer groove (656) and the inner groove (655); the contact seat (61) is communicated with a pulling groove (657) at a position close to the outer groove (656), a push plate (658) is connected in the outer groove (656) in a sliding manner, and a pulling spring (659) is connected between the push plate (658) and the inner wall of the pulling groove (657).

5. The disconnecting link device of an outdoor disconnector according to claim 4, characterized in that: the first limiting block (651a) is provided with a first pull rope (651c), the second limiting block (652a) is provided with a second pull rope (652c), the first pull rope (651c) and the second pull rope (652c) penetrate through the inner groove (655) and the connecting groove (6560), and the tail ends of the first pull rope (651c) and the second pull rope (652c) are connected with the push plate (658).

6. The disconnecting link device of an outdoor disconnector according to claim 5, characterized in that: connectors (650) are arranged at the inner turning positions among the first groove (651), the second groove (652), the inner groove (655) and the connecting groove (6560), and the first pull rope (651c) and the second pull rope (652c) penetrate through the connectors (650).

7. The disconnecting link device of an outdoor disconnecting switch according to claim 1, wherein: sliding grooves (66) are symmetrically formed in the inner wall of the mounting groove (62); sliding blocks (67) are symmetrically arranged on two sides of the fixed contact (63), and the sliding blocks (67) are located in the sliding grooves (66) and are in sliding connection with the sliding grooves (66).

8. The disconnecting link device of an outdoor disconnecting switch according to claim 1, wherein: the side wall of the static contact (63) far away from the resisting spring (64) is provided with a concave cambered surface (630); the upper end of the knife switch rod (5) is provided with a moving contact (50), and a convex arc surface (500) matched with the concave arc surface (630) is arranged on the moving contact (50).