Switch handle interlocking device

Abstract

The utility model provides a switch handle interlocking device, which is matched with a switch case on an outdoor column, and comprises an opening handle hinged with the switch case through a manual opening shaft and a closing handle hinged with the switch case through a manual closing shaft, the opening handle is coaxially provided with a positioning pull plate, the opening handle drives the positioning pull plate to rotate, and the positioning pull plate drives the opening handle to rotate. The opening handle is hinged with one end of a limiting connecting plate, the limiting connecting plate is provided with a limiting pin, the closing handle is fixedly connected with a positioning tongue plate, the positioning tongue plate is provided with a convex part matched with the limiting pin, and the other end of the limiting connecting plate is matched with the hand closing shaft, so that the limiting pin is driven to be matched with the convex part of the positioning tongue plate. When the opening handle is located at the reset position, the closing handle can rotate between the reset position and the closing position, and when the opening handle is located at the opening position and the closing handle is located at the reset position, the limiting pin of the limiting connecting plate is matched with the protruding part of the positioning tongue plate, and therefore interlocking of the opening handle and the closing handle is achieved.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage electrical appliances in power systems, in particular to a switch handle interlocking device. Background Art

[0002] With the continuous deepening of the intelligent construction of the national power grid, more and more outdoor pole-mounted switches are being put into practical use, which plays an indispensable and important role in the safe, reliable and economical operation of the distribution network.

[0003] Existing outdoor pole-mounted switches usually have two handles, a manual opening handle and a manual closing handle. There is no interlocking device between the two. When the manual opening handle is in the opening position, the manual closing handle can be closed, causing the outdoor pole-mounted switch to close and open instantly, resulting in power shaking. This will bring safety hazards to the operation and maintenance of the power grid and power equipment.

[0004] During the mass production of outdoor pole-mounted switches, if the manual opening handle and the manual closing handle do not have an interlocking device, human factors may cause misoperation, posing a safety hazard to the operator. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a switch handle interlocking device, which cooperates with the switch chassis on the outdoor column, including: a switching handle hinged to the switch chassis through a hand-opening shaft and a closing handle hinged to the switch chassis through a hand-closing shaft. The switching handle is coaxially provided with a positioning pull plate, and the switching handle drives the positioning pull plate to rotate. The switching handle is hinged to one end of a limit connecting plate, and the limit connecting plate is provided with a limit pin. The closing handle is fixedly connected to a positioning tongue plate, and the positioning tongue plate is provided with a protrusion that cooperates with the limit pin. The other end of the limit connecting plate cooperates with the hand-closing shaft, thereby driving the limit pin to cooperate with the protrusion of the positioning tongue plate.

[0006] Preferably, the limiting connecting plate is provided with a strip groove that cooperates with the hand-clamping shaft.

[0007] Preferably, the positioning pull plate is arranged between the switch chassis and the trip handle, and a positioning plate is connected between the positioning pull plate and the trip handle through a shaft sleeve. The positioning plate is provided with a first open limiting groove that cooperates with the trip handle, and the trip handle drives the positioning plate and the positioning pull plate to rotate through the open limiting groove and the shaft sleeve.

[0008] Preferably, the positioning tongue plate is provided with a second opening limiting groove, and the closing handle cooperates with the second opening limiting groove to drive the positioning tongue plate to rotate.

[0009] Preferably, both the opening handle and the closing handle are provided with a buckle portion.

[0010] The utility model has the following advantages:

[0011] 1. When the opening handle is in the reset position, the closing handle can rotate between the reset position and the closing position. When the opening handle is in the opening position and the closing handle is in the reset position, the limit pin of the limit link cooperates with the raised part of the positioning tongue plate, thereby realizing the interlocking of the opening handle and the closing handle.

[0012] 2. The movement range of the limit connecting plate is controlled by cooperating with the hand-clamping shaft through the strip groove set on the limit connecting plate.

[0013] 3. The opening handle and closing handle are equipped with a pull-button part that is convenient for technicians to hold and improve the driving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0015] Figure 1 This is an exploded view of the overall structure of the switch handle interlocking device in the embodiment of the present utility model;

[0016] Figure 2 The switch handle interlocking device in the embodiment of the utility model is used as a schematic diagram Figure 1 ;

[0017] Figure 3 This is a partial schematic diagram of the working state of the switch handle interlocking device in the embodiment of the utility model;

[0018] Figure 4 The switch handle interlocking device in the embodiment of the utility model is used as a schematic diagram Figure 2 .

[0019] In the figure: 1, switch chassis 2, manual opening shaft 3, opening handle 4, manual closing shaft 5, closing handle 6, positioning pull plate 7, limiting connecting plate 701, strip groove 8, limiting pin 9, positioning tongue plate 901, protrusion 902, second opening limiting groove 10, shaft sleeve 11, positioning plate 1101, first opening limiting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The present invention will be further described in detail below with reference to the embodiments and specific implementation methods.

[0022] like Figures 1 to 4As shown, a switch handle interlocking device cooperates with the switch chassis 1 on the outdoor column, including: an opening handle 3 hinged to the switch chassis 1 through a manual opening shaft 2 and a closing handle 5 hinged to the switch chassis 1 through a manual closing shaft 4. The opening handle 3 is coaxially provided with a positioning pull plate 6, and the opening handle 3 drives the positioning pull plate 6 to rotate synchronously.

[0023] The positioning pull plate 6 is arranged between the switch chassis 1 and the opening handle 3, and a positioning plate 11 is connected between the positioning pull plate 6 and the opening handle 3 through a shaft sleeve 10. The cross-section of the shaft sleeve 10 is elliptical. The elliptical structure is mainly to achieve the synchronization of the actions between the positioning plate 11 and the positioning pull plate 6. The opening handle 3 and the closing handle 5 are both provided with a buckle portion to facilitate the rotation of the opening handle 3 and the closing handle 5 around the hinge point.

[0024] The positioning plate 11 is provided with a first opening limit groove 1101 that cooperates with the opening handle 3. The first opening limit groove 1101 is also for improving the driving effect between the opening handle 3 and the positioning plate 11, and increasing the contact area between the positioning plate 11 and the opening handle 3 (mainly the contact area between the positioning rib and the opening handle 3). At the same time, positioning ribs that cooperate with the opening handle 3 are provided on both sides of the first opening limit groove 1101. The opening handle 3 drives the positioning plate 11 to rotate around the hinge point through the positioning ribs on both sides of the first opening limit groove 1101. At the same time, the positioning plate 11 drives the positioning pull plate 6 to rotate synchronously around the hinge point through the shaft sleeve 10.

[0025] The opening handle 3 is hinged to one end of a limit connecting plate 7 through a pin shaft. The limit connecting plate 7 is provided with a limit pin 8. The closing handle 5 is positioned and connected with a positioning tongue plate 9. The positioning tongue plate 9 is provided with a protrusion 901 that cooperates with the limit pin 8. The other end of the limit connecting plate 7 cooperates with the hand closing shaft 4. When the protrusion 901 of the positioning tongue plate 9 cooperates with the limit pin 8, the opening handle 3 and the closing handle 5 are interlocked.

[0026] The positioning tongue plate 9 is provided with a second opening limit groove 902. The closing handle 5 cooperates with the second opening limit groove 902 to drive the positioning tongue plate 9 to rotate. The second opening limit groove 902 is also consistent with the first opening limit groove 1101, mainly to facilitate the closing handle 5 to drive the positioning tongue plate 9 to rotate synchronously around the hinge point.

[0027] The limit connecting plate 7 is provided with a strip groove 701 that cooperates with the hand-clutch shaft 4. When the trip handle 3 drives the limit connecting plate 7 to move, and drives the strip groove 701 of the limit connecting plate 7 and the hand-clutch shaft 4 to reciprocate, it drives the limit pin 8 to abut or disengage the pin shaft of the raised portion 901 of the positioning tongue plate 9.

[0028] like Figures 1 to 2As shown, during operation, when the opening handle 3 is in the reset position, the closing handle 5 can be rotated between the reset position and the closing position. At this time, the limit pin 8 of the limit connecting plate 7 is disengaged from the protrusion 901 of the positioning tongue plate 9.

[0029] like Figure 4 As shown, when the opening handle 3 is in the opening position and the closing handle 5 is in the reset position, the limit pin 8 of the limit link 7 abuts and cooperates with the raised portion 901 of the positioning tongue plate 9, thereby realizing the interlocking of the opening handle 3 and the closing handle 5, avoiding the phenomenon of power shaking, and improving the safety of the power grid and power equipment during operation and maintenance.

[0030] Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

Claims

1. A switch handle interlocking device, which cooperates with the switch box on the outdoor column, characterized in that: include: The opening handle is hinged to the switch chassis through the hand-opening shaft, and the closing handle is hinged to the switch chassis through the hand-closing shaft. The opening handle is coaxially provided with a positioning pull plate, and the opening handle drives the positioning pull plate to rotate. The opening handle is hinged to one end of a limit connecting plate, and the limit connecting plate is provided with a limit pin. The closing handle is fixedly connected to a positioning tongue plate, and the positioning tongue plate is provided with a protrusion that cooperates with the limit pin. The other end of the limit connecting plate cooperates with the hand-closing shaft, thereby driving the limit pin to cooperate with the protrusion of the positioning tongue plate.

2. The switch handle interlocking device according to claim 1, characterized in that: The limiting connecting plate is provided with a strip groove matched with the hand-clamping shaft.

3. The switch handle interlocking device according to claim 1, characterized in that: The positioning pull plate is arranged between the switch chassis and the opening handle, and a positioning plate is connected between the positioning pull plate and the opening handle through a shaft sleeve. The positioning plate is provided with a first open limiting groove that cooperates with the opening handle. The opening handle drives the positioning plate and the positioning pull plate to rotate through the open limiting groove and the shaft sleeve.

4. The switch handle interlocking device according to claim 1, characterized in that: The positioning tongue plate is provided with a second opening limiting groove, and the closing handle cooperates with the second opening limiting groove to drive the positioning tongue plate to rotate.

5. The switch handle interlocking device according to claim 1, characterized in that: The opening handle and the closing handle are both provided with a buckle portion.

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