Double-confirmation travel switch mechanism for isolating switch

Abstract

The utility model relates to the technical field of electric power auxiliary equipment, in particular to a double-confirmation travel switch mechanism for an isolating switch, which comprises a mounting part, a microswitch a, a microswitch b and a trigger driving lever, the mounting part is mounted on a connecting lever box crimping flange of the isolating switch; the microswitch a is mounted on one side of the mounting part; the microswitch b is mounted on the other side of the mounting part; one end of the trigger deflector rod is connected with an outer crank arm of the isolating switch; and the trigger driving lever and the outer crank arm are arranged in parallel, and the trigger driving lever moves along with the outer crank arm to press the driving rod of the microswitch a or the driving rod of the microswitch b when the isolating switch is in a switching-on or switching-off state. The double-confirmation travel switch mechanism for the isolating switch provided by the utility model can monitor opening or closing operation of the isolating switch body, can stably upload opening signals and closing signals of the isolating switch body to a background, and truly and accurately reflects opening and closing conditions of the body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power auxiliary equipment, specifically relates to a double-confirmation travel switch mechanism for disconnecting switch. BACKGROUND

[0002] With the development of power grid technology, the one-key sequence control technology has been widely applied in the power grid, and under this background, for the 252kV six fluorine sulfur gas insulation metal enclosed switch device angle type disconnecting switch and linear type disconnecting switch, a double-confirmation scheme needs to be developed. The traditional disconnecting switch position judgment mainly depends on the on-off position confirmation of the control circuit auxiliary switch, but this single confirmation method has certain deficiencies in reliability. SUMMARY

[0003] The utility model aims at the problems in the background art and provides a double-confirmation travel switch mechanism for disconnecting switch.

[0004] The utility model discloses a double-confirmation travel switch mechanism for disconnecting switch, including installation part, its installation disconnecting switch's elbow box compression flange is pressed on one side of installation part,

[0005] Micro switch a, its installation installation part's one side,

[0006] Micro switch b, its installation installation part's other side,

[0007] And trigger lever, its one end is connected with the outer elbow of disconnecting switch, trigger lever and outer elbow are arranged in parallel, are used for triggering lever to move and press the drive rod of micro switch a or the drive rod of micro switch b with outer elbow under the closing or opening state of disconnecting switch.

[0008] Preferably, the trigger lever is connected to the outer elbow through the fastener a.

[0009] Preferably, the installation part includes installation plate a, installation plate b and installation plate c.

[0010] The installation plate a is connected to the elbow box compression flange of the disconnecting switch.

[0011] The upper end surface of installation plate b is connected to installation plate a, and the micro switch a or the micro switch b is installed on installation plate b.

[0012] The lower end surface of installation plate c is connected to installation plate a, and the micro switch b or the micro switch a is installed on installation plate c.

[0013] Preferably, the micro switch b or the micro switch a is detachably connected to the installation plate c or the installation plate b through the fastener c.

[0014] Preferably, the mounting plate b and the mounting plate c are provided with strip-shaped holes; the strip-shaped holes on the mounting plate b are horizontally arranged; and the strip-shaped holes on the mounting plate c are vertically arranged.

[0015] Preferably, the mounting part is provided with a protection part a for protecting the microswitch a.

[0016] Preferably, the protection part a is connected to the mounting part through a bolt a.

[0017] Preferably, the mounting part is provided with a protection part b for protecting the microswitch b.

[0018] Preferably, the protection part b is connected to the mounting part through a bolt b.

[0019] Preferably, the mounting plate a, the mounting plate b and the mounting plate c are integrated.

[0020] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0021] The double-confirmation travel switch mechanism for disconnecting switches provided by the utility model can monitor when the disconnecting switch body is operated to be opened or closed, and can stably upload the opening signal and the closing signal of the disconnecting switch body to the background, so as to truly and accurately reflect the opening and closing conditions of the body; the double-confirmation travel switch mechanism forms a non-homogeneous opening and closing position indication with the traditional auxiliary switch contact for realizing the opening and closing position judgment of the disconnecting switch equipment, so as to constitute the "double-confirmation" criterion of the opening and closing position of the disconnecting switch, thereby providing more reliable safety protection for realizing the "one-key sequence control" operation of the state conversion of the disconnecting switch of the transformer substation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a kind of schematic diagram under the installation state of disconnecting switch for a kind of embodiment of the utility model;

[0023] Figure 2 For Figure 1 The structure schematic diagram of a kind of embodiment of the utility model is provided;

[0024] Figure 3 The front view of the mounting part in a kind of embodiment of the utility model is provided;

[0025] Figure 4 The top view of the mounting part in a kind of embodiment of the utility model is provided.

[0026] Reference signs: 1, outer crank arm; 2, fastener a; 3, trigger lever; 4, protection part a; 5, microswitch a; 6, mounting part; 61, mounting plate a; 62, mounting plate b; 63, mounting plate c; 7, fastener b; 8, microswitch b; 9, strip-shaped hole; 10, protection part b. Detailed Implementation

[0027] Example 1

[0028] like Figures 1-2 As shown, the present invention proposes a double-confirmation limit switch mechanism for disconnecting switches, including a trigger lever 3, a micro switch a5, a mounting part 6, and a micro switch b8;

[0029] Mounting part 6 is installed on the crimp flange of the crank arm box of the disconnector switch;

[0030] Micro switch a5 and micro switch b8 are both connected to mounting part 6, and micro switch a5 and micro switch b8 are located on both sides of mounting part 6;

[0031] One end of the trigger lever 3 is connected to the outer crank arm 1 of the disconnecting switch. The trigger lever 3 is connected to the outer crank arm 1 through a fastener a2. The fastener a2 is a bolt. The fastener a2 passes through the through hole a on the trigger lever 3 and is screwed into the threaded hole on the outer crank arm 1 to form a fixed structure, so as to realize the detachable connection between the trigger lever 3 and the outer crank arm 1 of the disconnecting switch.

[0032] When the trigger lever 3 and the outer crank arm 1 of the disconnecting switch are installed, the trigger lever 3 and the outer crank arm 1 are arranged in parallel. When the disconnecting switch is in the open or closed state, the trigger lever 3 moves with the outer crank arm 1 to press the drive rod of micro switch a5 to rotate or the drive rod of micro switch b8 to rotate, so that micro switch a5 or micro switch b8 is in the closed state.

[0033] Example 2

[0034] like Figures 1-4 As shown, the present invention proposes a double-confirmation limit switch mechanism for disconnecting switches. Compared with Embodiment 1, this embodiment also details the specific structure of the mounting part 6; the mounting part 6 includes mounting plate a61, mounting plate b62 and mounting plate c63;

[0035] Mounting plate a61 is used to connect the crank arm box crimp flange of the disconnecting switch. Mounting plate a61 is arc-shaped and has mounting holes, which can be aligned with the through holes of the crank arm box crimp flange of the disconnecting switch. Fastener b7 is used to pass through the mounting holes and the through holes, and then a nut is used to fix mounting plate a61 to the crank arm box crimp flange of the disconnecting switch.

[0036] Mounting plate b62 is connected to the upper end face of mounting plate a61; micro switch a5 or micro switch b8 is mounted on mounting plate b62; mounting plate c63 is connected to the lower end face of mounting plate a61; micro switch b8 or micro switch a5 is mounted on mounting plate c63.

[0037] In an alternative embodiment, the mounting plate a61, the mounting plate b62 and the mounting plate c63 are integrated structures.

[0038] Embodiment three

[0039] As Figures 1-4 shown, the utility model discloses a kind of double confirmation travel switch mechanisms for isolating switch, compared with embodiment two, microswitch b8 or microswitch a5 in this embodiment is detachably connected mounting plate c63 or mounting plate b62 by fastener c;Fastener c is bolt;According to the demand of actual installation, microswitch b8 or microswitch a5 is installed on mounting plate c63, or it is installed on mounting plate b62, to monitor that isolating switch is in closing state or opening state by microswitch b8 and microswitch a5 is open or connected state.

[0040] In an alternative embodiment, strip hole 9 is provided on the mounting plate b62 and the mounting plate c63;The strip hole 9 on the mounting plate b62 is horizontally arranged;The strip hole 9 on the mounting plate c63 is vertically arranged;The strip hole 9 is used for fastener c to penetrate and cooperate with microswitch b8 or microswitch a5, in the process of on-site debugging, fastener c is moved in strip hole 9 to adjust the installation position of microswitch b8 or microswitch a5.

[0041] Embodiment four

[0042] As Figures 1-4 shown, the utility model discloses a kind of double confirmation travel switch mechanisms for isolating switch, compared with embodiment two, mounting portion 6 in this embodiment is equipped with protective portion a4 for protecting microswitch a5 and mounting portion 6 is equipped with protective portion b10 for protecting microswitch b8.

[0043] Protective portion a4 is connected with mounting portion 6 by bolt a, and protective portion b10 is connected with mounting portion 6 by bolt b;That is, mounting through hole is provided on mounting plate b62 or mounting plate c63, bolt a or bolt b penetrates the above-mentioned mounting through hole and the through hole on protective portion a4 or protective portion b10, and nut is used to fix protective portion a4 or protective portion b10, to protect microswitch a5 or microswitch b8.

[0044] In summary, when the micro switch a5 is installed on the mounting plate c63, and the micro switch b8 is installed on the mounting plate b62, in the closed state of the disconnecting switch, the outer arm 1 of the disconnecting switch drives the trigger lever 3 to operate, so that the trigger lever 3 presses the micro switch b8 to rotate to the on state, and the rotation angle is greater than or equal to 33.4°, ensuring that the closing stroke of the disconnecting switch body reaches 100%, at this time, the background receives the stable on signal of the micro switch b8, to determine that the disconnecting switch is in the closed state at this time, and at this time, the micro switch a5 is in the off state, and no signal is sent; in the open state of the disconnecting switch, the outer arm 1 of the disconnecting switch drives the trigger lever 3 to operate, so that the trigger lever 3 presses the micro switch a5 to rotate to the on state, and the rotation angle is greater than or equal to 33.4°, ensuring that the opening stroke of the disconnecting switch body reaches 100%, at this time, the background receives the stable on signal of the micro switch a5, to determine that the disconnecting switch is in the open state at this time, and at this time, the micro switch b8 is in the off state, and no signal is sent.

[0045] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A double-confirmation limit switch mechanism for a disconnecting switch, characterized in that, Comprising a mounting part (6) mounted on the crank box compression flange of the isolator; a micro switch a (5) mounted on one side of the mounting part (6); a micro switch b (8) mounted on the other side of the mounting part (6); and a trigger lever (3) connected to the outer crank arm (1) of the isolator at one end; the trigger lever (3) and the outer crank arm (1) are arranged in parallel, and when the isolator is in the closed or open state, the trigger lever (3) moves with the outer crank arm (1) to press the drive rod of the micro switch a (5) or the drive rod of the micro switch b (8).

2. The double confirmation travel switch mechanism for a disconnector according to claim 1, characterized by, The trigger lever (3) is connected to the outer crank arm (1) by fastener a (2).

3. The double confirmation travel switch mechanism for a disconnector according to claim 1, characterized by, The mounting part (6) includes mounting plate a (61), mounting plate b (62) and mounting plate c (63); The mounting plate a (61) is connected to the crank box compression flange of the isolator; The mounting plate b (62) is connected to the upper end face of the mounting plate a (61); the micro switch a (5) or the micro switch b (8) is mounted on the mounting plate b (62); The mounting plate c (63) is connected to the lower end face of the mounting plate a (61); the micro switch b (8) or the micro switch a (5) is mounted on the mounting plate c (63).

4. The double confirmation travel switch mechanism for a disconnector according to claim 3, characterized by The micro switch b (8) or the micro switch a (5) is detachably connected to the mounting plate c (63) or the mounting plate b (62) by fastener c.

5. The double confirmation travel switch mechanism for a disconnector according to claim 4, characterized by The mounting plate b (62) and the mounting plate c (63) are both provided with a strip-shaped hole (9); the strip-shaped hole (9) on the mounting plate b (62) is horizontally arranged; the strip-shaped hole (9) on the mounting plate c (63) is vertically arranged.

6. The double confirmation travel switch mechanism for a disconnector according to claim 1 or 3, characterized in that, The mounting part (6) is provided with a protection part a (4) for protecting the micro switch a (5).

7. The double confirmation travel switch mechanism for a disconnector according to claim 6, characterized by The protection part a (4) is connected to the mounting part (6) by bolt a.

8. The double confirmation travel switch mechanism for a disconnector according to claim 1 or 3, characterized in that, The mounting part (6) is provided with a protection part b (10) for protecting the micro switch b (8).

9. The double confirmation travel switch mechanism for a disconnector according to claim 8, characterized by, The protection part b (10) is connected to the mounting part (6) by bolt b.

10. The double confirmation travel switch mechanism for a disconnector according to claim 3, characterized by, The mounting plate a (61), the mounting plate b (62) and the mounting plate c (63) are integrated structures.

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