Outdoor GIS circuit breaker mechanism box

Abstract

An outdoor GIS circuit breaker mechanism box relates to the technology of high-voltage switch power transmission equipment and comprises a rainproof cover, a pneumatic rod, a rotating shaft, a buckle, a mechanism energy storage indicator, a circuit breaker opening and closing indicator, a ventilation cover, a handrail and a mechanism box base. According to the circuit breaker mechanism box, through the cooperation of the pneumatic rod and the rotating shaft, the inspection and maintenance functions of the circuit breaker mechanism can be realized under the condition that the rainproof cover is not disassembled, the inconvenience caused by disassembly and assembly of the rainproof cover when the circuit breaker mechanism is overhauled is effectively avoided, a large amount of manpower is saved, and the maintenance efficiency is improved. The mechanism energy storage indicator and the circuit breaker opening and closing indicator further improve the operation and maintenance safety and reliability of the equipment. A sealing ring is installed between the rainproof cover and the mechanism box base, buckles are installed on the periphery of the rainproof cover for pressing connection, elastic force generated after the sealing ring deforms enables the sealing ring to be tightly attached to a sealing face, the reliable waterproof effect is achieved, a ventilation cover is arranged below the mechanism box, and moisture generated by the day and night temperature difference influence in the mechanism box can be discharged in time.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switch power transmission equipment, in particular to a mechanism box applied to an outdoor GIS circuit breaker. Background Art

[0002] Gas-insulated metal-enclosed switchgear (GIS for short) is a complete set of switchgear composed of circuit breakers, disconnectors, grounding switches, transformers, busbars, bushings and other electrical components. Among them, the circuit breaker is the most important electrical component of GIS. If it fails, it will cause a large-scale power outage. Therefore, the stable and reliable operation of the circuit breaker is of great significance to the safe and stable operation of the power grid. The operating environment of outdoor GIS is harsh. The moisture brought by rainy weather and the temperature difference between day and night will cause serious moisture rust corrosion to the components in the mechanism box. In addition, outdoor GIS is affected by adverse factors such as sunlight and wind and sand all year round. The circuit breaker mechanism box usually uses a metal rain cover to increase its operating reliability, which also increases the difficulty for operation and maintenance personnel when removing the rain cover. Therefore, it is necessary to study an outdoor GIS circuit breaker mechanism box with strong waterproof ability and convenient disassembly and maintenance. Summary of the invention

[0003] The utility model aims to provide a mechanism box of an outdoor GIS circuit breaker suitable for the technical field of high-voltage switch transmission equipment.

[0004] In order to solve the above technical problems, the technical solution of the utility model is as follows: an outdoor GIS circuit breaker mechanism box, which is provided with a circuit breaker mechanism inside, including a mechanism box base for carrying the circuit breaker mechanism at the bottom, and a rain cover for covering the circuit breaker mechanism at the top; one end of the pneumatic rod is connected to the mechanism box base, and the other end is connected to the rain cover; the upper part of one side of the mechanism box base is connected to one side of the rain cover through a rotating shaft. Through the cooperation of the pneumatic rod and the rotating shaft, the circuit breaker mechanism can be inspected and maintained without disassembling the rain cover, effectively avoiding the inconvenience caused by disassembling and assembling the rain cover when inspecting the circuit breaker mechanism, and saving a lot of manpower.

[0005] A buckle is provided on the other side of the mechanism box base; the buckle includes a "J"-shaped clamping bent plate and a clamping bolt, the top horizontal plate of the clamping bent plate is connected to the rain cover, the end of the mechanism box base is inserted into the upper lateral groove of the clamping bent plate, the clamping bolt is passed into the clamping bent plate from the bottom and inserted into the mechanism box base, and is threadedly connected to the mechanism box base.

[0006] The lower horizontal plate of the clamping bent plate is connected with a bolt seat, and the bolt seat is threadedly connected with the clamping bolt.

[0007] The rain cover is provided with a handrail to facilitate the opening and closing of the rain cover.

[0008] A sealing ring is provided between the base of the mechanism box and the rain shield. The position of the sealing ring is close to the position of the buckle. The elastic force generated after the deformation of the sealing ring makes the sealing ring and the sealing surface fit tightly, achieving a reliable waterproof effect.

[0009] A ventilation cover is installed below the base of the mechanism box, which can timely discharge the moisture generated inside the mechanism box due to the influence of day-night temperature difference.

[0010] The beneficial effects of the present utility model are as follows:

[0011] By providing a mechanism energy storage indicator and a circuit breaker closing and opening indicator on the outside of the mechanism box, the energy storage state of the mechanism and the closing and opening state of the circuit breaker can be observed and understood in real time, providing safety guarantee for operation and maintenance personnel. Through the cooperation of the pneumatic rod and the rotating shaft of the rain shield, the operation of disassembling the rain shield by operation and maintenance personnel when inspecting and repairing the circuit breaker mechanism is reduced, and a large amount of manpower is saved. The sealing ring between the rain shield and the base of the mechanism box is tightly pressed by the buckle around the rain shield, effectively preventing the infiltration of rainwater, and the ventilation cover provided below the mechanism box can also timely discharge the moisture inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the mechanism box of an outdoor GIS circuit breaker.

[0013] Figure 2 It is a schematic diagram of the open cover maintenance state of the mechanism box of an outdoor GIS circuit breaker.

[0014] Figure 3 It is a schematic diagram of the pneumatic rod of the mechanism box of an outdoor GIS circuit breaker.

[0015] Figure 4 It is a schematic diagram of the buckle structure of the mechanism box of an outdoor GIS circuit breaker;

[0016] Figure 5 It is a three-dimensional view of the buckle of the mechanism box of an outdoor GIS circuit breaker.

[0017] In the figure: 1. Rain shield, 2. Pneumatic rod, 3. Rotating shaft, 4. Buckle, 5. Mechanism energy storage indicator, 6. Circuit breaker closing and opening indicator, 7. Ventilation cover, 8. Handrail, 9. Base of the mechanism box, 10. Circuit breaker mechanism, 11. Tightening bolt, 12. Sealing ring, 13. Tightening bent plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Embodiment:

[0019] An outdoor GIS circuit breaker mechanism box, with a circuit breaker mechanism 10 inside, includes a mechanism box base 9 at the lower part for carrying the circuit breaker mechanism 10, and a rain shield 1 at the upper part for covering the circuit breaker mechanism 10; one end of a pneumatic rod 2 is connected to the mechanism box base 9, and the other end is connected to the rain shield 1; one side upper part of the mechanism box base 9 is connected to one side of the rain shield 1 through a rotating shaft 3. Through the cooperation of the pneumatic rod 2 and the rotating shaft 3, the inspection and maintenance function of the circuit breaker mechanism can be realized without disassembling the rain shield 1, effectively avoiding the inconvenience caused by disassembling and assembling the rain shield during the inspection and maintenance of the circuit breaker mechanism, and saving a large amount of manpower.

[0020] A buckle 4 is provided on the other side of the mechanism box base 9; the buckle 4 includes a "ji"-shaped pressing bent plate 13 and a pressing bolt 11. The top horizontal plate of the pressing bent plate 13 is connected to the rain shield 1. The end of the mechanism box base 9 is inserted into the upper side groove of the pressing bent plate 13. The pressing bolt 11 is introduced from the lower part into the pressing bent plate 13 and inserted into the mechanism box base 9, and is threadedly connected to the mechanism box base 9.

[0021] Preferably, a bolt seat is connected to the lower horizontal plate of the pressing bent plate 13, and the bolt seat is threadedly connected to the pressing bolt 11.

[0022] Preferably, a handrail 8 is provided on the rain shield 1. It is convenient for the opening and closing operation of the rain shield 1.

[0023] Preferably, a sealing ring 12 is provided between the mechanism box base 9 and the rain shield 1. The position of the sealing ring 12 is close to the position of the buckle 4. The elastic force generated after the deformation of the sealing ring 12 makes the sealing ring 12 and the sealing surface fit tightly, achieving a reliable waterproof effect.

[0024] Preferably, a ventilation cover 7 is installed below the mechanism box base 9, which can timely discharge the moisture generated in the mechanism box due to the influence of day and night temperature difference.

[0025] Figure 1 It is a schematic diagram of the mechanism box of an outdoor GIS circuit breaker. A circuit breaker opening and closing indicator 6 is provided on the outside of the circuit breaker mechanism box, and a mechanism energy storage indicator 5 is provided on the rain shield 1, which can observe and understand the energy storage state of the mechanism and the opening and closing state of the circuit breaker in real time, providing safety protection for the operation and maintenance personnel, so that they can perform the opening cover operation under the condition of ensuring safety.

[0026] Preferably, the mechanism energy storage indicator 5 is a conventional device. Specifically, a visible window and a mechanism energy storage indicator 5 are provided at the corresponding position of the rain shield 1. The mechanism energy storage indicator 5 is a link transmission mechanism, which displays the mechanism energy storage state on the indicator board, and the energy is the elastic potential energy generated after the spring in the mechanism is compressed.

[0027] Preferably, the opening and closing indicator 6 of the circuit breaker is a conventional component. Specifically, a visible window and the opening and closing indicator 6 of the circuit breaker are provided at the corresponding position of the rain shield 1. The opening and closing indicator has two display states. One is the circuit breaker opening indicator plate, and the other is the circuit breaker closing indicator plate, which can display the current electrical connection state of the circuit breaker. The change of the opening and closing indicator is realized through the transmission of the mechanism connecting rod.

[0028] Figure 2 It is a schematic diagram of the maintenance state of opening the cover of the mechanism box of the outdoor GIS circuit breaker. First, remove the buckle 4 around the rain shield and the base of the mechanism box, and then hold the handrail 8 and lift the rain shield 1 of the circuit breaker mechanism box upward. Through the cooperation of the pneumatic rod 2 and the rotating shaft 3, the rain shield 1 will automatically maintain an appropriate opening and closing angle for inspecting and repairing the circuit breaker mechanism 10.

[0029] Figure 3 It is a schematic diagram of the pneumatic rod of the outdoor GIS circuit breaker mechanism box. The opening and closing angle of the rain shield of the circuit breaker mechanism box can be adjusted by changing the stroke of the pneumatic rod 2.

[0030] Figure 4 - Figure 5 The shown buckle of the outdoor GIS circuit breaker mechanism box. A sealing ring 12 is installed between the rain shield 1 and the base 9 of the mechanism box. Through the interaction of the compression bolt 11 and the compression bent plate 13, the sealing ring and the sealing surface are closely attached to achieve a reliable waterproof effect. When it is necessary to open the circuit breaker mechanism box, just loosen the compression bolt 11, and the buckle 4 can be detached.

Claims

1. An outdoor GIS circuit breaker mechanism box, with a circuit breaker mechanism (10) provided inside, characterized in that: It includes a mechanism box base (9) for carrying a circuit breaker mechanism (10) at the lower part, and a rain shield (1) for covering the circuit breaker mechanism (10) at the upper part; one end of a pneumatic rod (2) is connected to the mechanism box base (9), and the other end is connected to the rain shield (1); one side upper part of the mechanism box base (9) is connected to one side of the rain shield (1) through a rotating shaft (3), and a buckle (4) is provided on the other side of the mechanism box base (9); the buckle (4) includes a "ji"-shaped pressing bent plate (13) and a pressing bolt (11), the top horizontal plate of the pressing bent plate (13) is connected to the rain shield (1), the end of the mechanism box base (9) is inserted into the upper side groove of the pressing bent plate (13), and the pressing bolt (11) is introduced from the lower part into the pressing bent plate (13) and inserted into the mechanism box base (9) and is threadedly connected to the mechanism box base (9).

2. The outdoor GIS circuit breaker mechanism box according to claim 1, characterized in that: A bolt seat is connected to the lower horizontal plate of the pressing bent plate (13), and the bolt seat is threadedly connected to the pressing bolt (11).

3. An outdoor GIS circuit breaker mechanism box according to claim 1, characterized in that: A handrail (8) is provided on the rain shield (1).

4. An outdoor GIS circuit breaker mechanism box according to claim 1, characterized in that: A sealing ring (12) is provided between the mechanism box base (9) and the rain shield (1), the position of the sealing ring (12) is close to the position of the buckle (4), and the elastic force generated after the deformation of the sealing ring (12) makes the sealing ring (12) and the sealing surface fit tightly.

5. An outdoor GIS circuit breaker mechanism box according to claim 1, characterized in that: A ventilation cover (7) is installed below the mechanism box base (9) for discharging the moisture in the mechanism box.

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