CN218471830U

CN218471830U - Universal vacuum switch rapid opening trigger device for medium-pressure spring mechanism

Info

Publication number: CN218471830U
Application number: CN202222096323.8U
Authority: CN
Inventors: 祖莉; 谢艳红
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-02-10
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a general vacuum switch of medium-pressure spring mechanism trigger device that breaks floodgate fast, including connecting lever, trigger connecting lever and spacing pivot, the well lower part of connecting lever is rotated through pivot and trigger device casing and is connected, spacing pivot is rotated with trigger device casing and is connected, and trigger connecting lever fixes in spacing pivot, and triggers connecting lever and set up in the top one side of connecting lever, the bottom of connecting lever is provided with quick trigger mechanism, quick trigger mechanism comprises transfer line, installing support, vortex disc, repulsion coil and coil mounting panel, installing support and trigger device casing fixed connection, the coil mounting panel is fixed in one side of installing support, the repulsion coil is fixed in the inside of coil mounting panel; the existing electromagnetic trigger mechanism is replaced by the repulsive force coil and the vortex disc, so that the switch opening trigger time can be greatly reduced.

Description

Universal vacuum switch rapid opening trigger device for medium-pressure spring mechanism

Technical Field

The utility model relates to a vacuum circuit breaker technical field specifically is a quick separating brake trigger device of general vacuum switch of medium voltage spring mechanism.

Background

The existing spring operating mechanism is long in opening time which is normally about 30 milliseconds, if a system has large short-circuit current, the long opening time can affect the service life of a breaker, the opening speed of the breaker is not low in the opening process of the breaker and can normally reach 1.3 m/s, the switch opening time delays the switch triggering in most of time, the traditional electromagnetic coil triggering mechanism needs more than 20 milliseconds for triggering the switch, and in order to solve the problem that the triggering time of a common switch is too long, a set of switch rapid opening triggering device is especially developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick separating brake trigger device of general vacuum switch of middling pressure spring mechanism to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick separating brake trigger device of general vacuum switch of medium-pressure spring mechanism, includes the turning arm, triggers the turning arm and spacing pivot, the well lower part of turning arm is rotated through pivot and trigger device casing and is connected, spacing pivot is rotated with the trigger device casing and is connected, triggers the turning arm and fixes in spacing pivot, and triggers the turning arm and set up in the top one side of turning arm, the bottom of turning arm is provided with quick trigger mechanism, quick trigger mechanism comprises transfer line, installing support, vortex disc, repulsion coil and coil mounting panel, installing support and trigger device casing fixed connection, the side at one side of installing support is fixed to the coil mounting panel, the repulsion coil is fixed in the inside of coil mounting panel, the one end of transfer line is connected with the sub-unit rotation of turning arm, and the other end of transfer line passes repulsion coil, coil mounting panel and plug in on the installing support, the vortex disc is fixed on the transfer line, and the vortex disc is in one side of repulsion coil.

Preferably, the shaft sleeve is fixed on the side face of the other side of the mounting bracket, the transmission rod is inserted into the shaft sleeve, a tension spring is arranged inside the shaft sleeve, one end of the tension spring is fixedly connected with the shaft sleeve, and the other end of the tension spring is fixedly connected with the transmission rod.

Preferably, one end of the transmission rod is provided with a waist hole, the lower part of the crank arm is fixed with a convex shaft, and the convex shaft is inserted into the waist hole on the transmission rod.

Preferably, a limiting arm is arranged below the limiting rotating shaft and is rotatably connected with the trigger device shell, an arc-shaped limiting surface is arranged on the upper portion of the limiting arm, and a limiting groove is formed in the limiting rotating shaft.

Preferably, the inside fixed mounting of trigger device casing has big connecting lever mounting bracket and spring, rotate on the big connecting lever mounting bracket and install big connecting lever, the spring is connected with one side of big connecting lever, the one end of big connecting lever is rotated with the one end of gangbar and is connected, the other end of gangbar rotates and is connected with the spacing arm of spline, the spacing arm of spline rotates with the trigger device casing and is connected.

Compared with the prior art, the beneficial effects of the utility model are that: the existing electromagnetic trigger mechanism is replaced by the repulsive force coil and the vortex disc, so that the switch opening trigger time can be greatly reduced;

after the repulsion coil is de-energized, the transmission rod is pulled back to the position before being triggered through the tension spring, and meanwhile, the crank arm is made to return to the original position.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the quick trigger mechanism of the present invention;

fig. 2 is a schematic structural diagram of the opening state of the present invention;

fig. 3 is a schematic structural diagram of a closing state of the present invention;

fig. 4 is a schematic diagram of the cooperation between the limiting rotation shaft and the limiting arm in the brake-off state of the present invention;

fig. 5 is a schematic diagram of the cooperation between the limiting rotation shaft and the limiting arm in the closing state of the present invention.

In the figure: 1. a crank arm; 2. a large crank arm mounting rack; 3. a linkage rod; 4. a transmission rod; 5. mounting a bracket; 6. a vortex disk; 7. a repulsion coil; 8. a coil mounting plate; 9. a spline limiting arm; 10. a shaft sleeve; 11. a tension spring; 12. a limiting arm; 13. a large crank arm; 14. a spring; 15. triggering the crank arm; 16. and a limiting rotating shaft.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

Embodiment 1, please refer to fig. 1, in an embodiment of the present invention, a vacuum switch fast opening trigger device for a medium-pressure spring mechanism, includes a crank arm 1, a trigger crank arm 15 and a limit rotating shaft 16, a middle lower portion of the crank arm 1 is rotatably connected to a trigger housing through a rotating shaft, the limit rotating shaft 16 is rotatably connected to the trigger housing, the trigger crank arm 15 is fixed to the limit rotating shaft 16, the trigger crank arm 15 is disposed on one side of a top end of the crank arm 1, a fast trigger mechanism is disposed at a bottom of the crank arm 1, the fast trigger mechanism is composed of a transmission rod 4, a mounting bracket 5, an eddy current disk 6, a repulsion coil 7 and a coil mounting plate 8, the mounting bracket 5 is fixedly connected to the trigger housing, the coil mounting plate 8 is fixed to a side surface of the mounting bracket 5, the repulsion coil 7 is fixed inside the coil mounting plate 8, one end of the transmission rod 4 is rotatably connected to a lower portion of the crank arm 1, the other end of the eddy current disk 4 passes through the eddy current coil 7, the coil mounting plate 8 is connected to the mounting bracket 5, the disk 6 is fixed to the transmission rod 4, and the eddy current plate 6 is located on one side of the repulsion coil 7, and the theory of the transformer.

One end of the transmission rod 4 is provided with a waist hole, the lower part of the crank arm 1 is fixed with a convex shaft, and the convex shaft is inserted in the waist hole on the transmission rod 4.

The working principle is as follows: repulsion coil 7 is after getting electric, forms repulsion between repulsion coil 7 and the vortex dish 6 to promote vortex dish 6 and transfer line 4 and move to the left side, turning arm 1 produces rotatoryly under the promotion of transfer line 4, and turning arm 15 is triggered in the top extrusion of turning arm 1, makes spacing pivot 16 rotate and triggers, through the utility model discloses a quick trigger mechanism replaces current electromagnetism trigger mechanism, can very big reduction trigger time.

Embodiment 2, please refer to fig. 1, the difference between the embodiment of the present invention and embodiment 1 is: the shaft sleeve 10 is fixed on the other side face of the mounting bracket 5, the transmission rod 4 is inserted into the shaft sleeve 10, the tension spring 11 is arranged inside the shaft sleeve 10, one end of the tension spring 11 is fixedly connected with the shaft sleeve 10, and the other end of the tension spring 11 is fixedly connected with the transmission rod 4.

The working principle is as follows: after the repulsion coil 7 is de-energized, the tension spring 11 can pull the transmission rod 4 back to the position before being triggered, and meanwhile, the crank arm 1 is enabled to return to the original position.

Example 3, referring to fig. 1-5, the difference between the embodiment of the present invention and the embodiment 1 and the embodiment 2 is: the lower part of the limiting rotating shaft 16 is provided with a limiting arm 12, the limiting arm 12 is connected with the trigger device shell in a rotating mode, the upper portion of the limiting arm 12 is provided with an arc-shaped limiting surface, a limiting groove is formed in the limiting rotating shaft 16, a large connecting lever mounting frame 2 and a spring 14 are fixedly mounted inside the trigger device shell, a large connecting lever 13 is mounted on the large connecting lever mounting frame 2 in a rotating mode, the spring 14 is connected with one side of the large connecting lever 13, one end of the large connecting lever 13 is connected with one end of a linkage rod 3 in a rotating mode, the other end of the linkage rod 3 is connected with a spline limiting arm 9 in a rotating mode, and the spline limiting arm 9 is connected with the trigger device shell in a rotating mode.

The working principle is as follows: connecting lever 1 triggers connecting lever 15 after, triggers connecting lever 15 and drives spacing pivot 16 rotatory, after the spacing face of the arc on spacing arm 12 upper portion is aimed at to the spacing groove on spacing pivot 16, spacing pivot 16 can remove the restriction to spacing arm 12, spring 14 upwards stimulates big connecting lever 13 this moment, big connecting lever 13 drives gangbar 3 and rotates, the spacing arm 9 of gangbar 3 drive spline is rotatory, the bottom of the spacing arm 12 of top extrusion of the spacing arm 9 of spline, and then spacing arm 12 produces in addition and rotates.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a quick separating brake trigger device of general vacuum switch of medium pressure spring mechanism, includes connecting lever (1), triggers connecting lever (15) and spacing pivot (16), the well lower part of connecting lever (1) is rotated through pivot and trigger device casing and is connected, spacing pivot (16) are rotated with the trigger device casing and are connected, trigger connecting lever (15) and fix on spacing pivot (16), and trigger connecting lever (15) and set up in top one side of connecting lever (1), its characterized in that: the quick trigger mechanism is arranged at the bottom of the crank arm (1), and consists of a transmission rod (4), a mounting bracket (5), an eddy-current disc (6), a repulsive coil (7) and a coil mounting plate (8), wherein the mounting bracket (5) is fixedly connected with a trigger device shell, the coil mounting plate (8) is fixed on one side face of the mounting bracket (5), the repulsive coil (7) is fixed in the coil mounting plate (8), one end of the transmission rod (4) is rotatably connected with the lower portion of the crank arm (1), the other end of the transmission rod (4) penetrates through the repulsive coil (7) and the coil mounting plate (8) and is inserted in the mounting bracket (5), the eddy-current disc (6) is fixed on the transmission rod (4), and the eddy-current disc (6) is positioned on one side of the repulsive coil (7).

2. The quick opening trigger device of the vacuum switch universal for the medium-voltage spring mechanism as claimed in claim 1, is characterized in that: the fixed axle sleeve (10) of opposite side of installing support (5), during axle sleeve (10) was pegged graft into in transfer line (4), the inside of axle sleeve (10) sets up extension spring (11), the one end and axle sleeve (10) fixed connection of extension spring (11), the other end and transfer line (4) fixed connection of extension spring (11).

3. The quick opening trigger device of the vacuum switch universal for the medium-voltage spring mechanism as claimed in claim 1, is characterized in that: one end of the transmission rod (4) is provided with a waist hole, the lower part of the crank arm (1) is fixed with a convex shaft, and the convex shaft is inserted into the waist hole on the transmission rod (4).

4. The quick opening trigger device of the vacuum switch universal for the medium-voltage spring mechanism as claimed in claim 1 or 2, characterized in that: the limiting device is characterized in that a limiting arm (12) is arranged below the limiting rotating shaft (16), the limiting arm (12) is rotatably connected with the trigger device shell, an arc-shaped limiting surface is arranged on the upper portion of the limiting arm (12), and a limiting groove is formed in the limiting rotating shaft (16).

5. The quick opening and triggering device of the vacuum switch universal for the medium-voltage spring mechanism as claimed in claim 4, characterized in that: the utility model discloses a trigger device, including trigger device casing, the inside fixed mounting of trigger device casing has big crank arm mounting bracket (2) and spring (14), rotate on big crank arm mounting bracket (2) and install big crank arm (13), spring (14) are connected with one side of big crank arm (13), the one end of big crank arm (13) is rotated with the one end of gangbar (3) and is connected, the other end of gangbar (3) is rotated and is connected with spacing arm of spline (9), spacing arm of spline (9) are rotated with the trigger device casing and are connected.