Environment-friendly gas insulated looped network switchgear

Abstract

The utility model belongs to the technical field of electrical equipment, in particular to environment-friendly gas insulated looped network switch equipment, which comprises a box body, an insulated looped network load switch mechanism and a fuse, the insulated looped network load switch mechanism is arranged in the box body, and the fuse is arranged at the side end of the inner wall of the box body. According to the utility model, by arranging the self-locking mechanism, the indicating lamp, the independent power supply, the movable lock catch and the fixed lock catch, when the equipment structure is overhauled and maintained, an operator closes the sealing door in a rotating manner after completing an overhauling task on the insulated looped network switch equipment; at the moment, the cambered surface side of the fixed lock catch on the inner side of the sealing door faces the interior of the box body, then the sealing door rotates to make contact with the cambered surface of the movable lock catch, the movable lock catch, the fixed lock catch, the independent power source and the indicator light form a closed series circuit through continuous power supply of the independent power source and transmission of the electric wire, and the indicator light is turned on. Through the arrangement, the equipment structure has an automatic locking function.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an environmentally friendly gas-insulated ring network switch device. Background Art

[0002] Generally refers to SF6 load switch and SF6 load switch + fuse combination used in ring network lines or terminals. SF6 load switch is an excellent load switch that many users have experienced in recent years. In addition to the common advantages of vacuum load switch such as long electrical life and strong breaking force, its outstanding advantages are easy to achieve three working positions (on, off and grounding), small current (inductance, capacitance) breaking, and strong resistance to harsh environmental conditions. It is suitable for promotion and application in urban and rural medium-voltage distribution networks. This electrical equipment is composed of a large number of lines and electrical equipment, so it is very important.

[0003] The prior art has the following deficiencies: The prior art "An environmentally friendly gas insulated ring network switch device" with announcement number CN220822411U "includes a base and a connecting plate, the top of the base is fixedly connected to a frame by welding, the surface of the frame is provided with a connecting cavity, the surface of the frame is provided with a mounting position near the connecting cavity, the mounting position is provided with a plurality of threaded holes, the surface of the mounting position is fixedly connected with sealing strips on both sides of the threaded holes, the connecting plate is provided with avoidance positions adapted to the mounting position, the connecting plate is provided with connecting holes adapted to the threaded holes, and the connecting holes are connected to the threaded holes by bolts;"

[0004] The above structure has good sealing performance inside the equipment through the base, frame, connection cavity and sealing strip. However, the internal circuits of the electrical equipment are complicated and need frequent inspection and maintenance. The internal equipment is very important, and the cover plate or sealing door mechanism of the external sealing structure is still protected by traditional bolt fixing or sheet bolts. If the sealing door is forgotten to be closed after the inspection is completed, it may often cause huge losses.

[0005] The prior art has the following problems:

[0006] The external protection structure of current environmentally friendly gas-insulated ring network switchgear still uses traditional manual bolt locks, which often need to be manually turned or inserted. This method is not convenient enough, and there is no clear reminder whether the sealing door mechanism is locked, which can easily cause people to forget to lock it or the lock buckle is not completely locked without knowing it. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides an environmentally friendly gas-insulated ring network switch device, which solves the current problems of no locking reminder and inconvenient manual locking.

[0008] To achieve the above object, the utility model provides the following technical solution: an environmentally friendly gas insulated ring network switch device, comprising a box, an insulated ring network load switch mechanism, and a fuse, wherein the insulated ring network load switch mechanism is arranged inside the box, the fuse is installed on the inner wall side end of the box, and a sealing door is arranged on one corner end face of the box, characterized in that:

[0009] An indicator light is also installed on the outside of the sealed door, a self-locking mechanism is provided on the bottom end surface of the box body, a movable lock is provided on the top of the self-locking mechanism, a conductor is installed on the inner end of the middle part of the movable lock, and an independent power supply is fixedly connected to the bottom end of the box body;

[0010] The self-locking mechanism also includes a sleeve, a telescopic column, a spring and a pressure plate. The bottom of the sleeve is fixedly installed on the upper end of the self-locking mechanism, the telescopic column is inserted into the sleeve, and the spring is provided in two groups, and serves as a middle connecting structure, and the self-locking mechanism and the pressure plate are fixedly connected through the upper and lower ends.

[0011] As a preferred technical solution of the utility model, the sealing door also includes a mounting frame, a fixed lock, and an electric wire. The mounting frame is fixedly connected to the inner end face of the sealing door, the fixed lock is fixedly connected to the end face of the mounting frame, and the electric wire is connected to the inside of the fixed lock by plugging.

[0012] As a preferred technical solution of the utility model, the fixed lock buckle and the movable lock buckle have the same shape, both of which are composed of a top hemispherical structure and a bottom columnar structure, but the fixed lock buckle and the movable lock buckle are in opposite directions, and a conductor is also provided in the middle of the fixed lock buckle.

[0013] As a preferred technical solution of the utility model, one end of the power line passes through the inside of the mounting frame and the fixed lock, and the other end passes through the self-locking mechanism and the movable lock, and both ends are connected to the conductor, connecting the independent power supply, fixed lock, movable lock and indicator light in series.

[0014] As a preferred technical solution of the utility model, the self-locking mechanism and the mounting frame as well as the fixed lock buckle and the movable lock buckle are each provided with two groups, and are symmetrically distributed up and down with the middle part of the box body as the axis.

[0015] As a preferred technical solution of the utility model, the insulating ring network load switch mechanism also includes a conventional insulating ring network mechanism, and the box body is movably connected to a sealing door.

[0016] As a preferred technical solution of the utility model, the top of the telescopic column is fixedly connected to the bottom end of the pressure-bearing plate, and slides inside the sleeve following the up and down movement of the pressure-bearing plate.

[0017] Compared with the prior art, the utility model provides an environmentally friendly gas insulated ring network switchgear, which has the following beneficial effects:

[0018] The environmentally friendly gas insulated ring network switchgear is provided with a self-locking mechanism, an indicator light, an independent power supply, and a movable lock and a fixed lock. After the operator completes the maintenance task of the insulated ring network switchgear, the sealing door is closed by rotation. At this time, the fixed lock on the inner side of the sealing door faces the inside of the box with the arc surface side, and then contacts the arc surface of the movable lock through the rotation of the sealing door. Under the pressure of the operator, the fixed lock presses against the movable lock. After the arc surfaces at both ends contact, the fixed lock presses the movable lock down. The movable lock is pressed downward to push the pressure plate. The pressure plate forces the two sets of springs and the telescopic column to contract until the fixed lock squeezes through the upper end of the movable lock. Then the movable lock loses pressure, the spring needs to rebound quickly, and drive the telescopic column to push the pressure plate and the movable lock upward until it is reset. At this time, the movable lock contacts one end of the fixed lock plane, and the conductors in the middle also contact each other. Through the continuous power supply of the independent power supply and the transmission of the power line, the movable lock, the fixed lock, the independent power supply and the indicator light form a closed series circuit, and then the indicator light comes on, indicating that the sealed door is locked. Through the above settings, the device structure can have an automatic locking function, which is faster and more convenient than manual locking. In addition, the series circuit is formed by the self-locking mechanism. If the sealed door is not closed properly, the indicator light will not come on, thereby reminding the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the self-locking mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the contact position between the fixed lock buckle and the movable lock buckle of the utility model;

[0022] Figure 4 This is a schematic diagram of the position structure of the indicator light of the utility model.

[0023] In the figure: 1. Box; 2. Insulated ring network load switch mechanism; 3. Fuse; 4. Sealed door; 401. Mounting frame; 402. Fixed lock; 403. Power line; 5. Indicator light; 6. Self-locking mechanism; 601. Sleeve; 602. Telescopic column; 603. Spring; 604. Pressure plate; 7. Movable lock; 8. Conductor; 9. Independent power supply. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 In this embodiment: an environmentally friendly gas insulated ring network switchgear comprises a box body 1, an insulated ring network load switch mechanism 2, and a fuse 3. The insulated ring network load switch mechanism 2 is arranged inside the box body 1. The insulated ring network load switch mechanism 2 and the fuse 3 assist the operation of the insulated ring network switchgear. The fuse 3 is installed on the inner wall side end of the box body 1. A sealing door 4 is arranged on a corner end face of the box body 1. The sealing door 4 isolates the inside and outside of the box body 1. The characteristics are:

[0026] An indicator light 5 is also installed on the outside of the sealed door 4, and the indicator light 5 reminds the locked state. A self-locking mechanism 6 is provided on the bottom end surface of the box body 1, and the self-locking mechanism 6 is automatically locked. A movable lock buckle 7 is provided on the top of the self-locking mechanism 6. The movable lock buckle 7 and the fixed lock buckle 402 form a lock body structure. A conductor 8 is installed at the middle inner end of the movable lock buckle 7, and the conductor 8 conducts internal electricity. An independent power supply 9 is also fixedly connected to the bottom end of the box body 1, and the independent power supply 9 supplies power to the indicator light 5 connected in series;

[0027] The self-locking mechanism 6 also includes a sleeve 601, a telescopic column 602, a spring 603 and a pressure plate 604. The bottom of the sleeve 601 is fixedly installed on the upper end of the self-locking mechanism 6, the telescopic column 602 is inserted into the sleeve 601, and two groups of springs 603 are provided, and they serve as a middle connecting structure and are fixedly connected to the self-locking mechanism 6 and the pressure plate 604 through the upper and lower ends respectively.

[0028] In this embodiment, the sealing door 4 also includes a mounting frame 401, a fixed lock buckle 402, and an electric wire 403. The mounting frame 401 is fixedly connected to the inner end surface of the sealing door 4, the fixed lock buckle 402 is fixedly connected to the end surface of the mounting frame 401, and the electric wire 403 is movably connected to the inside of the fixed lock buckle 402 by plugging; the fixed lock buckle 402 and the movable lock buckle 7 have the same shape, both of which are composed of a top hemispherical structure and a bottom columnar structure, but the fixed lock buckle 402 and the movable lock buckle 7 are in opposite directions, and a conductor 8 is also provided in the middle of the fixed lock buckle 402. The fixed lock buckle 402 and the movable lock buckle 7 are arranged in opposite directions, so that the movable lock buckle 7 can be pressed down when the fixed lock buckle 402 contacts the curved surface of the movable lock buckle 7; one end of the electric wire 403 passes through the mounting frame 401 and the fixed lock 402, the other end passes through the self-locking mechanism 6 and the movable lock 7, and the ends of both ends are connected to the conductor 8, the independent power supply 9, the fixed lock 402, the movable lock 7 and the indicator light 5 are connected in series, and the locking state can be clearly seen through the series indicator light 5; the self-locking mechanism 6 and the mounting frame 401 and the fixed lock 402 and the movable lock 7 are each provided with two groups, and are symmetrically distributed up and down with the middle part of the box body 1 as the axis, and the two groups of self-locking mechanisms 6 are provided to ensure the safety of the sealed door 4; the insulating ring network load switch mechanism 2 also includes a conventional insulating ring network mechanism, and the box body 1 is movably connected to the sealed door 4; the top of the telescopic column 602 is fixedly connected to the bottom end of the pressure plate 604, and slides inside the sleeve 601 following the up and down movement of the pressure plate 604.

[0029] The working principle and use process of the utility model are as follows: after the operator completes the maintenance task of the insulating ring network switch equipment, the sealing door 4 is closed by rotating. At this time, the fixed lock buckle 402 on the inner side of the sealing door 4 faces the inside of the box body 1 with the arc surface side, and then contacts the arc surface of the movable lock buckle 7 through the rotation of the sealing door 4. Under the pressure of the operator, the fixed lock buckle 402 presses the movable lock buckle 7. After the arc surfaces at both ends contact, the fixed lock buckle 402 presses the movable lock buckle 7 down. The movable lock buckle 7 is pressed downward to push the pressure plate 604. The pressure plate 604 forces the two sets of springs 603 to shrink together with the telescopic column 602 until the fixed lock buckle 402 squeezes through the upper end of the movable lock buckle 7. Then the movable lock buckle 7 loses pressure, and the spring 603 needs to rebound quickly, and drive the telescopic column 602 to push the pressure plate 604 and the movable lock buckle 7 to move upward until it is reset. At this time, the movable lock buckle 7 contacts one end of the plane of the fixed lock buckle 402, and the conductors 8 in the middle also contact each other. Through the continuous power supply of the independent power source 9 and the transmission of the power line 403, the movable lock 7, the fixed lock 402, the independent power source 9 and the indicator light 5 form a closed series circuit, and then the indicator light 5 lights up, indicating that the sealed door 4 is locked.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An environmentally friendly gas insulated ring network switchgear, comprising a box (1), an insulated ring network load switch mechanism (2), and a fuse (3), wherein the insulated ring network load switch mechanism (2) is arranged inside the box (1), the fuse (3) is installed on the inner wall side end of the box (1), and a sealing door (4) is arranged on a corner end face of the box (1), characterized in that: An indicator light (5) is also installed on the outer side of the sealing door (4); a self-locking mechanism (6) is provided on the bottom end surface of the box body (1); a movable lock buckle (7) is provided on the top of the self-locking mechanism (6); a conductor (8) is installed on the inner end of the middle part of the movable lock buckle (7); and an independent power supply (9) is also fixedly connected to the bottom end of the box body (1); The self-locking mechanism (6) further comprises a sleeve (601), a telescopic column (602), a spring (603) and a pressure plate (604); the bottom of the sleeve (601) is fixedly mounted on the upper end of the self-locking mechanism (6); the telescopic column (602) is inserted into the sleeve (601); two groups of springs (603) are provided, and serve as a middle connecting structure, respectively fixedly connecting the self-locking mechanism (6) and the pressure plate (604) through the upper and lower ends.

2. The environmentally friendly gas insulated ring network switchgear according to claim 1, characterized in that: The sealing door (4) further comprises a mounting frame (401), a fixed lock buckle (402), and an electric wire (403); the mounting frame (401) is fixedly connected to the inner end surface of the sealing door (4); the fixed lock buckle (402) is fixedly connected to the end surface of the mounting frame (401); and the electric wire (403) is movably connected to the inside of the fixed lock buckle (402) by plugging.

3. The environmentally friendly gas insulated ring network switchgear according to claim 2, characterized in that: The fixed lock buckle (402) and the movable lock buckle (7) have the same shape, and are both composed of a top hemispherical structure and a bottom columnar structure. However, the fixed lock buckle (402) and the movable lock buckle (7) face in opposite directions, and a conductor (8) is also provided in the middle of the fixed lock buckle (402).

4. The environmentally friendly gas insulated ring network switchgear according to claim 2, characterized in that: One end of the power supply wire (403) passes through the interior of the mounting frame (401) and the fixed lock (402), and the other end passes through the self-locking mechanism (6) and the movable lock (7), and both ends are connected to the conductor (8), connecting the independent power supply (9), the fixed lock (402), the movable lock (7) and the indicator light (5) in series.

5. The environmentally friendly gas insulated ring network switchgear according to claim 1, characterized in that: The self-locking mechanism (6), the mounting frame (401), the fixed lock buckle (402) and the movable lock buckle (7) are each provided in two groups and are symmetrically distributed up and down with the middle of the box body (1) as the axis.

6. The environmentally friendly gas insulated ring network switchgear according to claim 1, characterized in that: The insulating ring network load switch mechanism (2) further comprises a conventional insulating ring network mechanism inside, and the box body (1) is movably connected to the sealing door (4).

7. The environmentally friendly gas insulated ring network switchgear according to claim 1, characterized in that: The top of the telescopic column (602) is fixedly connected to the bottom end of the pressure-bearing plate (604), and slides inside the sleeve (601) following the up and down movement of the pressure-bearing plate (604).

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