GIS disconnecting link opening and closing position monitoring device

Abstract

The utility model relates to the technical field of GIS equipment, in particular to a GIS knife switch opening and closing position monitoring device, which comprises a cylinder and a rotatable transmission connecting rod, the transmission connecting rod is fixedly connected with a main rotating shaft used for driving a knife switch to be opened and closed, a reflection-type photoelectric switch is fixedly mounted on the transmission connecting rod, and a sticker is arranged on one side of the transmission connecting rod; the range of the sticker corresponds to the moving range of the reflective optoelectronic switch, and the sticker comprises a reflective sticker section and a light absorption sticker section; the reflective sticker section is located at the position opposite to the transmitting end of the reflective optoelectronic switch when the transmission connecting rod is located at the in-place opening and closing position. Other positions, except the reflective sticker section, in the sticker are light-absorbing sticker sections; the reflective photoelectric switch is electrically connected with the control cubicle and the background measurement and control computer; on the basis of accurately sensing whether the disconnecting link is switched on or off in place, the monitoring device is simple in structure, low in cost and suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of GIS equipment, in particular to a GIS knife switch opening and closing position monitoring device. Background Technique

[0002] Since the knife switch of the GIS equipment is enclosed in a sleeve filled with SF6 gas, the actual opening and closing conditions cannot be directly observed. Its opening and closing states can only be indirectly indicated by the opening and closing indication signs in the mechanism box driven by the operating mechanism, and the measurement and control background can only judge the opening and closing states of the knife switch through the states of the opening and closing auxiliary contacts. If the auxiliary contacts are adhered or the opening and closing strokes of the knife switch are not in place, resulting in the mismatch between the electrical position and the actual position of the knife switch, or due to the high installation position of the equipment and the different observation angles of on-site personnel, resulting in misjudgment of the opening and closing in-place conditions, it will bring great potential safety hazards to the operation and maintenance work, and may even lead to serious safety accidents such as closing the grounding knife under live conditions.

[0003] The patent with the application number 201710270680.2 discloses a device and system for detecting the opening and closing stroke of equipment. The rotation of the main rotating shaft is sensed by a magnetic sheet arranged on the main rotating shaft in the cavity of the GIS equipment, and the angle detection device is arranged on the hoop of the cavity of the GIS equipment far from the main rotating shaft. The rotation data of the main rotating shaft is obtained through magnetic field induction to reliably indicate and judge the opening and closing stroke states of the switch of the GIS equipment. However, the disadvantage of this patent solution is that the structure is complex and the cost is high. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a GIS knife switch opening and closing position monitoring device to solve the problems of complex structure and high cost of the existing equipment opening and closing stroke detection equipment and system.

[0005] To achieve the above purpose, the utility model provides a GIS knife switch opening and closing position monitoring device, which includes a cylinder body and a rotatable transmission connecting rod. The transmission connecting rod is fixedly connected with a main rotating shaft for driving the opening and closing of the knife switch. A reflective photoelectric switch is fixedly installed on the transmission connecting rod, and a sticker is arranged on one side of the transmission connecting rod. The range of the sticker corresponds to the moving range of the reflective photoelectric switch. The sticker includes a reflective sticker section and an absorbent sticker section. The reflective sticker section is located at the position opposite to the emitting end of the reflective photoelectric switch when the transmission connecting rod is in the in-place position of opening and closing. The other positions in the sticker except the reflective sticker section are absorbent sticker sections. The reflective photoelectric switch is electrically connected to the switch control cabinet and the background measurement and control computer.

[0006] Further, the transmission connecting rod is located outside the cylinder body, the main rotating shaft is located inside the cylinder body, and the sticker is located on the cylinder body.

[0007] Further, the shape of the sticker is arc-shaped.

[0008] Further, the sticker includes two reflective sticker segments, and light-absorbing sticker segments are provided between the two reflective sticker segments and on the sides where the two reflective sticker segments are away from each other.

[0009] Further, the width of the reflective sticker segment is 1.5 mm.

[0010] By providing a reflective optoelectronic switch and a sticker, the utility model can accurately sense whether the knife switch is in the fully closed or fully open position and transmit the information to the switch control cubicle and the background measurement and control computer, enabling on-site personnel and remote operators to obtain accurate information and avoid misjudgment.

[0011] On the basis of accurately sensing whether the knife switch is in the fully closed or fully open position, the utility model ensures that the monitoring device has a simple structure and low cost, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model.

[0013] Figure 1 It is a schematic structural diagram of an embodiment;

[0014] In the figure: 1, transmission connecting rod; 2, reflective optoelectronic switch; 3, reflective sticker segment; 4, light-absorbing sticker segment; 5, cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0016] As Figure 1 shown, according to an embodiment of the utility model, there is provided a GIS knife switch closing and opening position monitoring device, including a cylinder 5 and a rotatable transmission connecting rod 1. The transmission connecting rod 1 is fixedly connected with a main rotating shaft for driving the knife switch to close and open. A reflective optoelectronic switch 2 is fixedly installed on the transmission connecting rod 1. A sticker is provided on one side of the transmission connecting rod 1. The range of the sticker corresponds to the active range of the reflective optoelectronic switch 2. The sticker includes a reflective sticker segment 3 and a light-absorbing sticker segment 4. The reflective sticker segment 3 is located at a position opposite to the emitting end of the reflective optoelectronic switch 2 when the transmission connecting rod 1 is in the fully closed or fully open position. Other positions in the sticker except the reflective sticker segment 3 are light-absorbing sticker segments 4. The reflective optoelectronic switch 2 is electrically connected to the switch control cubicle and the background measurement and control computer.

[0017] The transmission connecting rod 1 is located outside the cylinder 5, the main rotating shaft is located inside the cylinder 5, and the sticker is adhered to the cylinder 5.

[0018] The sticker is arc-shaped; the sticker includes two reflective sticker segments 3, and light-absorbing sticker segments 4 are provided between the two reflective sticker segments 3 and on the sides where the two reflective sticker segments 3 are away from each other; the width of the reflective sticker segment 3 is 1.5 mm.

[0019] The working principle of the above embodiment is as follows:

[0020] The position of the transmission link 1 is used to determine whether the opening and closing are in place. When the transmission link 1 is in the position where the opening and closing are in place, the receiving end of the reflective optoelectronic switch 2 can receive the light emitted by the transmitting end and transmit the signal to the switch control cabinet and the background monitoring and control computer, and the switch control cabinet and the background monitoring and control computer display that the opening and closing are in place; when the transmission link 1 is in other positions, the receiving end of the reflective optoelectronic switch 2 cannot receive the light emitted by the transmitting end, and the switch control cabinet and the background monitoring and control computer display that the opening and closing are not in place; thus enabling on-site inspection personnel and remote operators at the background computer to quickly and accurately judge the in-place state of the disconnector opening and closing at the same time and avoiding misjudgment.

[0021] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A GIS knife switch opening and closing position monitoring device, comprising a cylinder (5), a rotatable transmission connecting rod (1), wherein the transmission connecting rod (1) is fixedly connected to a main rotating shaft for driving the knife switch to open and close, and characterized in that: A reflective photoelectric switch (2) is fixedly mounted on the transmission connecting rod (1), and a sticker is provided on one side of the transmission connecting rod (1); the range of the sticker corresponds to the range of movement of the reflective photoelectric switch (2), and the sticker comprises a reflective sticker segment (3) and a light-absorbing sticker segment (4); the reflective sticker segment (3) is located at a position opposite to the transmitting end of the reflective photoelectric switch (2) when the transmission connecting rod (1) is in the opening and closing position; the other positions in the sticker except the reflective sticker segment (3) are light-absorbing sticker segments (4); the reflective photoelectric switch (2) is electrically connected to the control cabinet and the background measurement and control computer.

2. The GIS knife switch opening and closing position monitoring device according to claim 1 is characterized in that: The transmission connecting rod (1) is located on the outside of the cylinder (5), the main rotating shaft is located on the inside of the cylinder (5), and the sticker is located on the cylinder (5).

3. The GIS switch opening and closing position monitoring device according to claim 2 is characterized in that: The sticker is in an arc shape.

4. The GIS switch opening and closing position monitoring device according to claim 3 is characterized in that: The sticker comprises two reflective sticker segments (3), and a light-absorbing sticker segment (4) is provided between the two reflective sticker segments (3) and on the side of the two reflective sticker segments (3) that is away from each other.

5. The GIS switch opening and closing position monitoring device according to claim 2 is characterized in that: The width of the reflective sticker segment (3) is 1.5 mm.

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