CN216133788U - Three station switch operating device micro-gap switch's insulating spacer and operating device - Google Patents

Abstract

The utility model discloses an insulating spacer of a microswitch of a three-position switch operating mechanism and the operating mechanism, wherein the insulating spacer comprises a working surface, the working surface comprises two starting surfaces, two holding surfaces and an action surface, and the action surface is a sunken arc-shaped structure and is arranged in the middle area of the working surface; the two holding surfaces are symmetrically arranged on two sides of the action surface and can keep the distance between the two holding surfaces unchanged in the contact process with the driving unit; the two starting surfaces are symmetrically arranged on both sides of the two holding surfaces and can gradually reduce the distance between the two holding surfaces during the contact with the driving unit. According to the insulating spacer of the microswitch of the three-station switch operating mechanism, provided by the utility model, the working surface of the insulating spacer is set to be of a symmetrical structure with a recess in the middle, so that the switching speed and the switching synchronism of the microswitch can be ensured under the condition of effectively and electrically isolating adjacent conductive pin parts, and the safety and the reliability of the operating mechanism are improved.

Description

Three station switch operating device micro-gap switch's insulating spacer and operating device

Technical Field

The utility model belongs to the technical field of high-voltage switches, and particularly relates to an insulating spacer of a microswitch of a three-position switch operating mechanism and the operating mechanism.

Background

In the field of medium-voltage power transmission and distribution equipment, a three-station switch operating mechanism of an environment-friendly gas-insulated switch cabinet generally uses a combination consisting of a plurality of micro switches at isolation switch-on, grounding switch-on and switch-off positions, and particularly aims at that the micro switch group on a direct-acting three-station switch operating mechanism is in a linear layout, and the mechanism triggers the micro switch group through a linear moving pressing block.

At present, the spacer of the microswitch group on the mainstream three-station switch operating mechanism can only play the adjacent conductive pin part of an electrical isolation microswitch, and the pressing block can not be ensured to play the functions of quick action and synchronization for the switching of the microswitch group.

Accordingly, it would be a problem to those skilled in the art to provide a safe and reliable insulating spacer for a three-position switch operating mechanism microswitch.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem of safety and reliability of an insulating spacer of the existing microswitch of the three-position switch operating mechanism, the utility model aims to provide the insulating spacer of the microswitch of the three-position switch operating mechanism and the operating mechanism.

In order to achieve the purpose, the insulating spacer of the microswitch for the three-position switch operating mechanism comprises a working surface, wherein the working surface comprises two starting surfaces, two holding surfaces and an action surface, and the action surface is a concave arc-shaped structure and is arranged in the middle area of the working surface; the two holding surfaces are symmetrically arranged on two sides of the action surface and can keep the distance between the two holding surfaces unchanged in the contact process with the driving unit; the two starting surfaces are symmetrically arranged on both sides of the two holding surfaces and can gradually reduce the distance between the two holding surfaces during the contact with the driving unit.

Furthermore, the edge of the working surface of the insulating spacer is provided with an anti-friction structure.

Further, the anti-friction structure is formed by folding edges.

A three-position switch operating mechanism comprises a micro switch unit and a driving unit, wherein the driving unit is in driving connection with the micro switch unit correspondingly.

Furthermore, the micro switch unit comprises a micro switch, a pressing plate and an insulating spacer, the pressing plate and the micro switch are correspondingly matched and arranged, and the insulating spacer is also matched and arranged with the driving unit.

Furthermore, the driving unit comprises a pressing assembly, an elastic assembly and a driving assembly, wherein the pressing assembly is arranged on the elastic assembly, the elastic assembly is arranged on the driving assembly, and the driving assembly can only do parallel linear motion relative to the working surface of the insulating spacer.

Further, the pressing component is composed of a pressing block.

Further, the elasticity is formed by a spring piece.

Further, the driving assembly is composed of a nut.

According to the insulating spacer of the microswitch of the three-station switch operating mechanism, provided by the utility model, the working surface of the insulating spacer is set to be of a symmetrical structure with a recess in the middle, so that the same effect can be achieved in the reciprocating motion of the driving unit, and the switching speed and the synchronism of the microswitch can be ensured under the condition that adjacent conductive pin parts are effectively and electrically isolated.

Simultaneously, this insulating spacer's working face still is provided with antifriction structure, and this antifriction structure protection micro-gap switch drive disk assembly and shell do not receive external force oppression damage, reduce briquetting and micro-gap switch contact to and reduce the frictional force of briquetting in operation process.

Drawings

The utility model is further described below in conjunction with the appended drawings and the detailed description.

FIG. 1 is a first schematic view of a conventional insulating spacer;

FIG. 2 is a second schematic structural diagram of a conventional insulating spacer;

FIG. 3 is a first schematic view showing the structure of the insulating spacer according to the present example;

FIG. 4 is a second schematic view of the structure of the insulating spacer according to the present example;

fig. 5 is a schematic structural view of the three-position switch operating mechanism in this example in a specific application.

The reference numbers in the figures mean:

the micro switch comprises a micro switch 1, a pressure plate 2, an insulating spacer 3, a working surface 30, a starting surface 31, a holding surface 32, an action surface 33, an anti-friction structure 3a, a pressing block 4, a spring piece 5 and a nut 6.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

To the fail safe nature problem that current three station switch operating device micro-gap switch's insulating spacer exists, this scheme provides a three station switch operating device micro-gap switch's insulating spacer and operating device, has sunken symmetrical structure through the working face that sets up insulating spacer to the centre, can also guarantee the speed and the synchronism that micro-gap switch switched under the adjacent electrically conductive pin position condition of realization effective electrical isolation, has improved operating device's fail safe nature.

This scheme provides a three station switch operating device micro-gap switch's insulating spacer 3 to three station switch's reciprocal characteristic, adopts the structure setting of bilateral symmetry for guarantee that drive unit can both play the same effect in reciprocating motion.

As shown in fig. 3, the insulating spacer 3 in this example includes a working surface 30, the working surface 30 being disposed corresponding to the driving unit, and the working surface 30 includes two start surfaces 31, two holding surfaces 32, and one actuating surface 33.

The actuating surface 33 is disposed in the middle of the working surface 30, and is a concave arc structure.

The two holding surfaces 32 are symmetrically disposed on both sides of the actuating surface 33, and are configured to maintain a constant distance therebetween during contact with the driving unit, and in particular, the holding surfaces 32 may preferably be parallel to the driving unit.

The two start surfaces 31 are also symmetrically disposed on both sides of the two holding surfaces 32, and are configured such that the distance between the start surfaces 31 and the driving units gradually decreases during the movement of the driving units toward the holding surfaces 32, and in particular, the start surfaces 31 may preferably be inclined surfaces opposite to the driving units.

The setting of structure like this, in operating device operation in-process, the hypotenuse of 3 originated faces 31 of insulating spacer can let drive unit's pressure progressively increase, insulating spacer 3 keeps face 32 to keep the pressure that can make drive unit unchanged, the design of 3 working faces of insulating spacer has reduced drive unit and micro-gap switch's contact, when playing the adjacent electrically conductive pin position of electrical isolation micro-gap switch, still guarantee that drive unit plays speed-action and synchronous effect to micro-gap switch's switching.

As shown in FIG. 4, the scheme is characterized in that an anti-friction structure 3a is further arranged at the edge of the working face of the insulating spacer 3, and when the anti-friction structure is specifically arranged, the anti-friction structure can be formed by increasing the thickness of the edge of the working face of the insulating spacer 3 or arranging a folding edge at the edge of the working face of the insulating spacer 3.

The structure setting like this not only can reduce the briquetting 4 and contact the frictional force of 1 in-process of micro-gap switch in the operation, can avoid briquetting 4 to micro-gap switch 1 plastic casing's pressure moreover, can avoid briquetting 4 long-term friction to form the recess again, can improve micro-gap switch 1's fail safe nature.

Here, the specific structure of the anti-friction structure 3a is not limited as long as the same effect can be obtained.

Furthermore, the depression of the action surface 33 of the insulating spacer 3 can ensure the switching speed and the synchronism of the micro switch 1 at the speed driven by the motor, so that the phenomenon that the action of the micro switch 1 is advanced or delayed is avoided, the micro switch is not stopped in place before reaching the designed working position or is stopped after reaching the working position to form overshoot, and the damage of internal parts or the failure of a main circuit of the micro switch to reach the design requirement range to cause accidents are avoided.

Aiming at the arrangement of the insulating spacer of the microswitch of the three-station switch operating mechanism, the scheme also provides a corresponding operating mechanism.

The operating mechanism comprises a micro switch unit and a driving unit, wherein the driving unit is in driving connection with the micro switch unit correspondingly.

As shown in fig. 5, the micro switch unit includes a micro switch 1, a pressing plate 2 and an insulating spacer 3, wherein the insulating spacer 3, the pressing plate 2 and the micro switch 1 are correspondingly matched, and the insulating spacer 3 is further matched with the driving unit.

The structural arrangement and corresponding matching relationship of the microswitch 1 and the pressure plate 2 are well known in the art, and are not described in detail herein.

The driving unit is used for driving and triggering the microswitch 1 in the example, and specifically comprises a pressing block 4, a spring piece 5 and a nut 6.

The pressing block 4 is fixedly arranged on the spring piece 5, the spring piece 5 is fixedly arranged on the screw 6, and the screw 6 only moves linearly in the left-right direction under the action of the driving assembly and does not rotate.

Meanwhile, the spring piece 5 and the pressing block 4 can move left and right along with the linear motion of the screw 6.

As shown in fig. 5, in the three-position switch operating mechanism based on the above structure, in specific application, under the action of the driving assembly, when the screw 6 makes a linear motion leftward, the pressing block 4 moves synchronously, the upper part of the pressing block 4 contacts with the working surface of the insulating spacer 3, and when the pressing block 4 moves to the inclined edge of the right starting surface 31, the spring piece 5 gradually starts to deform under pressure.

The screw 6 continues to do linear motion leftwards, the pressing block 4 moves synchronously, the upper portion of the pressing block 4 is in contact with the working surface of the insulating spacer 3, and when the pressing block 4 moves to the right side retaining surface 32, the spring piece 5 is subjected to pressure to stably maintain a deformation state and has certain pressure on the insulating spacer 3.

The screw 6 continues to do linear motion leftwards, the pressing block 4 moves synchronously, the upper portion of the pressing block 4 is in contact with the working face of the insulating spacer 3, when the pressing block 4 moves to the concave portion of the middle action face 33, due to the shape change of the insulating spacer 3, the spring piece 5 starts to release pressure to recover, the pressing block 4 is pressed into the concave portion of the insulating spacer 3, the action portion of the microswitch 1 is synchronously acted by the pressure of the pressing block 4, the internal contact of the microswitch 1 changes, the state of the three-position switch after reaching the corresponding position sends a signal to the background driving assembly through the contact of the microswitch 1 to stop moving, and the action is completed.

Similarly, the process of the screw 6 moving linearly to the right can be referred to the above process, and will not be described in detail here.

This example provides a three station switch operating device micro-gap switch's insulating spacer, working face through with insulating spacer sets up to the centre has sunken symmetrical structure, thereby can both play the same effect in drive unit's reciprocating motion, can also guarantee micro-gap switch's speed and synchronism under the realization adjacent electrically conductive pin position condition of effective electrical isolation, protection micro-gap switch drive disk assembly and shell do not receive external force oppression damage, reduce briquetting and micro-gap switch contact, and reduce the frictional force of briquetting at the operation in-process, three station switch operating device's fail safe nature has been improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. An insulating spacer of a microswitch of a three-position switch operating mechanism is characterized by comprising a working surface, wherein the working surface comprises two starting surfaces, two holding surfaces and an action surface, and the action surface is a concave arc-shaped structure and is arranged in the middle area of the working surface; the two holding surfaces are symmetrically arranged on two sides of the action surface and can keep the distance between the two holding surfaces unchanged in the contact process with the driving unit; the two starting surfaces are symmetrically arranged on both sides of the two holding surfaces and can gradually reduce the distance between the two holding surfaces during the contact with the driving unit.

2. An insulating spacer for a three position switch operating mechanism microswitch as in claim 1 wherein the edge of the working surface of the insulating spacer is provided with an anti-friction structure.

3. The insulating spacer for a three-position switch operating mechanism microswitch of claim 2 wherein the anti-friction structure is comprised of a folded edge.

4. A three-position switch operating mechanism is characterized by comprising a micro switch unit and a driving unit, wherein the driving unit is in driving connection with the micro switch unit correspondingly; the micro switch unit comprises a micro switch, a pressing plate and the insulating spacer as claimed in any one of claims 1 to 3, the insulating spacer, the pressing plate and the micro switch are correspondingly matched, and the insulating spacer is also matched with the driving unit.

5. The three-position switch operating mechanism according to claim 4, wherein the driving unit comprises a pressing assembly, an elastic assembly and a driving assembly, the pressing assembly is arranged on the elastic assembly, the elastic assembly is arranged on the driving assembly, and the driving assembly can only do parallel linear motion relative to the working surface of the insulating spacer.

6. The three-position switch operating mechanism of claim 5, wherein the pressing assembly is comprised of a press block.

7. A three-position switch operating mechanism according to claim 5 wherein said resilient member is formed by a leaf spring.

8. A three-position switch operating mechanism according to claim 5 wherein the drive assembly is constituted by a nut.

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