CN209993524U

CN209993524U - Isolation switch structure capable of swinging

Info

Publication number: CN209993524U
Application number: CN201920899523.2U
Authority: CN
Inventors: 马乐乐
Original assignee: Du Haoyu
Current assignee: Du Haoyu
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-01-24
Anticipated expiration: 2029-06-15

Abstract

The utility model discloses a swingable isolation switch structure, which comprises a base, wherein the left end part and the right end part of the upper surface of the base are respectively and fixedly provided with a first insulator and a second insulator, the first insulator and the second insulator are respectively and fixedly provided with a static contact seat and a moving contact seat, the upper right end of the static contact seat is provided with a static contact, the upper left end of the moving contact seat is provided with a connecting lug, the front end part and the rear end part of the connecting lug are respectively connected with a first metal sheet and a second metal sheet through pins, the left end parts of the inner side surfaces of the first metal sheet and the second metal sheet are connected through a second spring, the middle part of the upper end surface of the base is fixedly provided with a lug seat, the middle part of the lug seat is movably connected with a movable rocker seat through a pin shaft, and the swingable isolation switch structure can avoid the conditions of poor contact and short circuit at the junction of the isolation switch through the telescopic action of the first, the isolation switch has higher use safety.

Description

Isolation switch structure capable of swinging

Technical Field

The utility model relates to a distribution technical field specifically is a wobbling isolation switch structure.

Background

The isolation knife switch is the most used electrical appliance in high-voltage switch electrical appliances, the working principle and the structure of the isolation knife switch are simpler, but the isolation knife switch has large use amount and high requirement on the working reliability, and has larger influence on the design, the establishment and the safe operation of a substation and a power plant. The main characteristic of the knife switch is that it has no arc-extinguishing ability, and can only open and close the circuit under the condition of no load current. The isolating disconnecting link can be used for separating and combining small currents in lines, such as charging currents of a sleeve, a bus, a connector and a short cable, capacitance currents of a switch voltage-sharing capacitor, circulating currents when double buses are connected in a switching mode, exciting currents of a voltage transformer and the like. The existing isolation disconnecting link has potential safety hazards when in use, and the potential safety hazards are mainly reflected in the problems that the isolation disconnecting link is easy to be in poor contact with a power transmission connector and the situation that metal sheets and static contacts are connected unstably easily occurs in the long-term use process of the isolation disconnecting link, so that short circuit of lines is easily caused, and power accidents are caused. To this end, we propose a swingable isolating switch structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wobbling isolation switch structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wobbling isolation switch structure, includes the base, tip fixed mounting has first insulator and second insulator respectively about the base upper surface, on first insulator and the second insulator respectively fixed mounting have stationary contact seat and moving contact seat, stationary contact seat upper right end is equipped with the static contact, it is equipped with the connection journal stirrup to move contact seat upper left end, tip is connected with first sheetmetal and second sheetmetal respectively through the pin around the connection journal stirrup, the interior side left end portion of first sheetmetal and second sheetmetal is connected through the second spring, base up end middle part fixed mounting has the journal stirrup, the journal stirrup middle part has movable swing link seat through round pin axle swing joint, movable inserted connection has the activity inserted bar in the activity of movable swing link seat upper end.

Preferably, the lower ends of the first metal sheet and the second metal sheet are fixedly provided with guide blocks, the middle lower part of each guide block is fixedly provided with a fixed seat, and the lower ends of the fixed seats are fixedly provided with movable insertion rods.

Preferably, the second stop block and the first stop block are fixedly mounted at the left ends of the inner side surfaces of the first metal sheet and the second metal sheet respectively.

Preferably, the inner end face of the first stop block is movably inserted with a second stop block, and the outer side faces of the first stop block and the second stop block are movably sleeved with second springs.

Preferably, the inner end part of the movable inserted rod is provided with a limiting block, and the limiting block is connected with the movable swing rod seat through a first spring.

Preferably, the inner side surfaces of the first metal sheet and the second metal sheet are both provided with convex contacts, and the convex contacts are in movable contact with the fixed contacts.

Compared with the prior art, the beneficial effects of the utility model are that: according to the swingable isolation switch structure, the first stop block, the second spring, the convex contact, the first metal sheet, the second metal sheet and the guide block structure are arranged, the displacement in the vertical direction of the first metal sheet and the second metal sheet can be limited through the telescopic action of the second spring, and the horizontal displacement of the first metal sheet and the second metal sheet is limited through the convex contact, so that the first metal sheet and the second metal sheet are effectively contacted with a fixed contact, the condition that the isolation switch is not in contact with a power transmission joint well is effectively avoided, and the effect of improving the transmission efficiency of the isolation switch is achieved; through setting up activity inserted bar, activity pendulum rod seat and first spring structure, shorten the interval of activity inserted bar and activity pendulum rod seat through first spring, make first sheetmetal, second sheetmetal and static contact be connected more stably to reach the effect that improves isolation switch safety in utilization.

Drawings

FIG. 1 is a partial main sectional view of the structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic view of a connection structure of the first metal sheet and the second metal sheet according to the present invention.

In the figure: the device comprises a base 1, a first insulator 2, a second insulator 3, a stationary contact seat 4, a movable contact seat 5, a stationary contact 6, a connecting lug 7, a first metal sheet 8, a second metal sheet 9, a convex contact 10, a lug seat 11, a movable swing rod seat 12, a movable inserted rod 13, a fixed seat 14, a first spring 15, a guide block 16, a first stop block 17, a second stop block 18 and a second spring 19.

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. 1-3, the present invention provides a technical solution: the utility model provides a wobbling isolation switch structure, includes base 1, tip difference fixed mounting has first insulator 2 and second insulator 3 about base 1 upper surface, fixed mounting has stationary contact seat 4 and moving contact seat 5 on first insulator 2 and the second insulator 3 respectively, the upper right end of stationary contact seat 4 is equipped with static contact 6, connecting journal stirrup 7 middle part is located to static contact 6, the upper left end of moving contact seat 5 is equipped with connects journal stirrup 7, the tip is connected with first sheetmetal 8 and second sheetmetal 9 respectively through the pin around connecting journal stirrup 7, first sheetmetal 8 and second sheetmetal 9 medial surface left end difference fixed mounting have second dog 18 and first dog 17. A second stop block 18 is movably inserted into the inner end face of the first stop block 17, and a second spring 19 is movably sleeved on the outer side faces of the first stop block 17 and the second stop block 18. The inner side surfaces of the first metal sheet 8 and the second metal sheet 9 are both provided with a convex contact 10, and the convex contact 10 is movably contacted with the static contact 6. The left end parts of the inner side surfaces of the first metal sheet 8 and the second metal sheet 9 are connected through a second spring 19, a supporting lug seat 11 is fixedly installed in the middle of the upper end surface of the base 1, a movable swing rod seat 12 is movably connected to the middle of the supporting lug seat 11 through a pin shaft, and a movable insertion rod 13 is movably inserted into the upper end of the movable swing rod seat 12. The lower ends of the first metal sheet 8 and the second metal sheet 9 are fixedly provided with guide blocks 16, the guide blocks 16 are used for playing a role in connecting and guiding the static contact 6, the first metal sheet 8 and the second metal sheet 9 when the movable contact seat 5 is connected with the static contact seat 4, the guide blocks 16 are protruded inwards, friction generated in the contact process of the first metal sheet 8, the second metal sheet 9 and the static contact 6 is reduced, and therefore the switching-on efficiency is improved, the lower middle portion of the guide blocks 16 is fixedly provided with a fixed seat 14, and the lower end of the fixed seat 14 is fixedly provided with a movable insertion rod 13. The inner end part of the movable inserted rod 13 is provided with a limiting block, and the limiting block is connected with the movable swing rod seat 12 through a first spring 15. When the first spring 15 is at an initial position, the convex contacts 10 of the first metal sheet 8 and the second metal sheet 9 are in contact with the static contact 6, the second spring 19 is subjected to a stretching force, and the first metal sheet 8 and the second metal sheet 9 are pulled to be pressed inwards due to a reaction force of the second spring 19, so that a contact and attachment effect of the convex contacts 10 and the static contact 6 is increased, at this time, the closing of the isolation switch is achieved, when the first spring 15 is stretched, the distance between the movable insertion rod 13 and the movable swing rod seat 12 is increased, the first metal sheet 8 and the second metal sheet 9 are turned clockwise, the convex contacts 10 are separated from the static contact 6, the second spring 19 restores to an initial state, the convex contacts 10 on the first metal sheet 8 and the second metal sheet 9 are in contact with each other, and at this time, the opening of the isolation switch is achieved. Through the telescopic action of the first spring 15 and the second spring 19, the connection stability of the static contact 6 and the convex contact 10 is better, so that the use safety of the isolation switch is improved.

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

1. The utility model provides a wobbling isolation switch structure, includes base (1), its characterized in that: the left end part and the right end part of the upper surface of the base (1) are respectively and fixedly provided with a first insulator (2) and a second insulator (3), a static contact seat (4) and a moving contact seat (5) are respectively and fixedly arranged on the first insulator (2) and the second insulator (3), the right upper end of the static contact seat (4) is provided with a static contact (6), the left upper end of the movable contact seat (5) is provided with a connecting lug (7), the front end part and the rear end part of the connecting support lug (7) are respectively connected with a first metal sheet (8) and a second metal sheet (9) through pins, the left end parts of the inner side surfaces of the first metal sheet (8) and the second metal sheet (9) are connected through a second spring (19), a supporting lug seat (11) is fixedly arranged in the middle of the upper end surface of the base (1), the middle of the supporting lug seat (11) is movably connected with a movable swing rod seat (12) through a pin shaft, the upper end of the movable swing rod seat (12) is movably inserted with a movable insertion rod (13).

2. A swingable isolating switch structure according to claim 1, wherein: first sheetmetal (8) and second sheetmetal (9) lower extreme fixed mounting have guide block (16), lower part fixed mounting has fixing base (14) in guide block (16), fixing base (14) lower extreme fixed mounting has movable inserted bar (13).

3. A swingable isolating switch structure according to claim 1, wherein: and a second stop block (18) and a first stop block (17) are fixedly mounted at the left ends of the inner side surfaces of the first metal sheet (8) and the second metal sheet (9) respectively.

4. A swingable isolating switch structure according to claim 3, wherein: the inner end face of the first stop block (17) is movably inserted with a second stop block (18), and the outer side faces of the first stop block (17) and the second stop block (18) are movably sleeved with a second spring (19).

5. A swingable isolating switch structure according to claim 1, wherein: the inner end part of the movable inserted rod (13) is provided with a limiting block, and the limiting block is connected with the movable swing rod seat (12) through a first spring (15).

6. A swingable isolating switch structure according to claim 1, wherein: the inner side surfaces of the first metal sheet (8) and the second metal sheet (9) are respectively provided with a convex contact (10), and the convex contacts (10) are movably contacted with the static contact (6).