Inlet wire sleeve of combined type gas insulation switch cabinet

Abstract

The utility model provides an inlet wire sleeve of a combined type gas insulation switch cabinet, which relates to the technical field of sleeves and comprises a rotating disc and an annular plate which are respectively arranged on the inner side wall and the outer side wall of a cabinet body plate, and corrugated pipes are fixedly connected to the side walls of the rotating disc and the annular plate. According to the utility model, the handle is held by hand to drive the rotating disc to rotate, the rotating disc is utilized to drive the arc-shaped groove to rotate, meanwhile, the positions of the cabinet body plate and the straight guide groove are kept unchanged, one side of the triangular baffle is clamped between the positioning column and the arc-shaped groove and slides under the arc track of the arc-shaped groove, and the other side of the triangular baffle is limited and clamped by the straight sliding block and the straight guide groove; the triangular baffles move under the simultaneous limiting effect of the two faces, one ends of all the triangular baffles are driven to contract inwards, the inner side walls of the triangular baffles are firmly clamped to the outer sides of the inlet wires sleeved with the heat shrink tubes, then the bundled inlet wires are temporarily fixed, and it is avoided that the inlet wires are dragged in a switch cabinet, and the connection stability of wire heads and electrical contact points is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bushings, in particular to an incoming line bushing of a combined gas-insulated switch cabinet. Background Art

[0002] Cabinet-type gas-insulated metal-enclosed switchgear is an extension of high-voltage GIS products in the medium-voltage field. It uses low-pressure SF6 gas, N2 gas or mixed gas as the insulating medium of the switchgear, and vacuum or SF6 as the arc-extinguishing medium, and centrally seals the busbar, circuit breaker, disconnector and other medium-voltage components in the box. Bushing is an insulating device that introduces live conductors into electrical equipment or passes through walls. Bushings are classified into rigid bushings, flexible waterproof bushings, steel pipe bushings and iron bushings.

[0003] Patent publication number CN102388514A, "Bushing for connecting gas-insulated switchgear and air-insulated switchgear", includes a busbar and a shielding cover, which are embedded in an electrical insulator. The gas-insulated switchgear side of the electrical insulator is conical, and the air-insulated switchgear side of the electrical insulator is cylindrical; the electrical insulator also includes a mounting flange located between the conical insulator and the cylindrical insulator; and a plurality of umbrella groups are evenly arranged on the outside of the cylindrical insulator.

[0004] However, in the prior art, the gas-insulated switchgear is connected to an external power supply or an actuator through wires. Generally, the line distribution inside a gas-insulated switchgear with more complex functions will also be more complicated. The bushing can organize the multiple wires inside the switchgear, but when the bushing is used to bundle multiple wires, the weight of the bushing and the wires will also increase. The existing incoming line bushing lacks a suspended fixed support method, so that the bundled wires drag the contacts between the switchgear and the wires, which easily causes the wires to detach from the switchgear. Utility Model Content

[0005] The utility model mainly provides an incoming line bushing which can fix and support and prevent the electric wires from being separated from the contact point of the switch cabinet due to dragging.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an incoming line bushing of a combined gas-insulated switchgear, comprising a rotating disk and an annular plate respectively arranged on the inner and outer side walls of a cabinet panel, the side walls of the rotating disk and the annular plate are fixedly connected with a bellows, the side wall of the cabinet panel is provided with a circular opening, a triangular baffle is arranged between the rotating disk and the cabinet panel, a positioning column is fixedly connected to one side of the triangular baffle, a straight slider is fixedly connected to the other side of the triangular baffle, a straight guide groove is provided on the side wall of the cabinet panel, the straight slider is slidably connected to the straight guide groove, an arc groove is provided on the side wall of the rotating disk, and the triangular baffle is slidably connected to the arc groove.

[0007] Preferably, a connecting column is fixedly connected between the rotating disk and the annular plate. In order to ensure the stability of the connection between the rotating disk and the cabinet plate, the annular plate is arranged on the inner side of the cabinet plate, and the rotating disk is arranged on the outer side of the cabinet plate. The rotating disk and the annular plate are connected by the connecting column to prevent the rotating disk from detaching from the surface of the cabinet plate.

[0008] Preferably, an annular through groove is provided on the outer wall of the cabinet plate, and the outer wall of the connecting column is slidably connected to the annular through groove. In order to ensure that the rotating disk can rotate normally when connected to the cabinet plate, an annular through groove is arranged on the outer side of the cabinet plate, and a notch is provided in one place of the annular through groove so that the connecting column can move along the track of the annular through groove, thereby ensuring that the rotating disk rotates around the axis of the annular through groove, so as to accurately control the adjustment position of the triangular baffle.

[0009] Preferably, the outer side wall of the rotating disk is fixedly connected to a handle. By arranging the handle on the outer side wall of the rotating disk and arranging a rubber sleeve on the surface of the handle, it is convenient to adjust the angle of the rotating disk by holding the handle.

[0010] Preferably, sealing rings are fixedly connected to the sides of the rotating disk and the annular plate, and rubber rings are provided on the outer sides of the rotating disk and the annular plate, which can effectively prevent water from entering the switch cabinet through the gap, thereby preventing the incoming line bushing from moisture.

[0011] Preferably, the side walls of the rotating disk and the annular plate are fixedly connected with magnetic sheets, and the rotating disk and the annular plate are connected by magnetic attraction. The rotating disk and the annular plate are connected by magnetic attraction, which ensures that the triangular baffle between the rotating disk and the annular plate will not detach therefrom, thereby ensuring the stability of the overall structure.

[0012] Preferably, the side wall of the rotating disk is provided with scale lines, and the rotation angle of the rotating disk can be visualized by providing scale lines on the outer side wall of the rotating disk, so as to better control the size of the circular opening.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the rotating disk is driven to rotate by holding a handle, and the rotating disk is used to drive the arc groove to rotate. At the same time, the positions of the cabinet plate and the straight guide groove remain unchanged. One side of the triangular baffle is clamped between the positioning column and the arc groove, and slides under the arc trajectory of the arc groove, and the other side is limited by the straight slider and the straight guide groove. The triangular baffle moves due to the simultaneous limiting action of the two sides, driving one end of all the triangular baffles to shrink inward, thereby changing the original channel aperture size, so that the inner side wall of the triangular baffle is firmly clamped on the outside of the incoming wire covered with a heat shrink tube, and then the incoming wire stored in bundles is temporarily fixed to avoid dragging of the incoming wire in the switch cabinet to affect the connection stability between the wire head and the electrical contact point.

[0015] 2. In the utility model, the rotating disk and the annular plate are connected to each other by a connecting column, and an annular groove is arranged on the cabinet plate, so that the rotating disk and the annular plate move under the track of the annular groove. At the same time, the rotating disk and the annular plate are connected by magnetic attraction, ensuring that the triangular baffle between the rotating disk and the annular plate will not be detached therefrom. Rubber rings are arranged on the outer sides of the rotating disk and the annular plate to prevent water from entering the interior of the switch cabinet through the gap, thereby ensuring the stability of the overall structure of the incoming bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an incoming bushing of a combined gas-insulated switchgear is provided for the utility model;

[0017] Figure 2 The utility model provides a partial structural disassembly effect diagram of an incoming bushing of a combined gas-insulated switchgear;

[0018] Figure 3 The utility model provides a side structure split effect diagram of a triangular baffle in an incoming bushing of a combined gas-insulated switchgear;

[0019] Figure 4 The utility model provides another side structure split effect diagram of a triangular baffle in an incoming bushing of a combined gas-insulated switchgear.

[0020] Legend: 1. Rotating plate; 2. Handle; 3. Bellows; 4. Arc groove; 5. Positioning column; 6. Cabinet plate; 7. Annular groove; 8. Triangular baffle; 9. Annular plate; 10. Connecting column; 11. Straight slider; 12. Straight guide groove; 13. Round opening. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] See also Figure 1-Figure 4The utility model provides an incoming line bushing of a combined gas-insulated switchgear, comprising a rotating disk 1 and an annular plate 9 respectively arranged on the inner and outer side walls of a cabinet plate 6, the side walls of the rotating disk 1 and the annular plate 9 are fixedly connected with a corrugated tube 3, a round opening 13 is provided on the side wall of the cabinet plate 6, a triangular baffle plate 8 is provided between the rotating disk 1 and the cabinet plate 6, a positioning column 5 is fixedly connected to one side of the triangular baffle plate 8, a straight slider 11 is fixedly connected to the other side of the triangular baffle plate 8, a straight guide groove 12 is provided on the side wall of the cabinet plate 6, the straight slider 11 is slidably connected to the straight guide groove 12, an arc groove 4 is provided on the side wall of the rotating disk 1, the triangular baffle plate 8 is slidably connected to the arc groove 4, the cabinet plate 6 is the back plate of the insulating switchgear, a round opening 13 for incoming lines is provided on the cabinet plate 6, and a large number of round openings are generally carried out in the switchgear, line marks are provided at the inner and outer ends of the incoming lines, and then a plurality of incoming lines are summarized and sorted by using cable ties, and the bundled wires are inserted from the round opening When the cam 12 is in the closed position, the cam 12 is in the closed position, and the cam 12 is in the closed position, so that ...

[0024] like Figure 2 As shown, a connecting column 10 is fixedly connected between the rotating disk 1 and the annular plate 9. In order to ensure the stability of the connection between the rotating disk 1 and the cabinet plate 6, the annular plate 9 is arranged on the inner side of the cabinet plate 6, and the rotating disk 1 is arranged on the outer side of the cabinet plate 6. The rotating disk 1 and the annular plate 9 are connected by the connecting column 10 to prevent the rotating disk 1 from detaching from the surface of the cabinet plate 6.

[0025] like Figure 2 As shown, an annular groove 7 is provided on the outer wall of the cabinet plate 6, and the outer wall of the connecting column 10 is slidingly connected to the annular groove 7. In order to ensure that the rotating disk 1 can rotate normally when connected to the cabinet plate 6, an annular groove 7 is provided on the outer side of the cabinet plate 6. There is a notch in one place of the annular groove 7, so that the connecting column 10 can move along the track of the annular groove 7, thereby ensuring that the rotating disk 1 rotates around the axis of the annular groove 7, so as to accurately control the adjustment position of the triangular baffle 8.

[0026] like Figure 4As shown, the outer wall of the rotating disk 1 is fixedly connected to the handle 2. By arranging the handle 2 on the outer wall of the rotating disk 1 and arranging a rubber sleeve on the surface of the handle 2, it is convenient to adjust the angle of the rotating disk 1 by holding the handle 2.

[0027] like Figure 3 As shown, sealing rings are fixedly connected to the sides of the rotating disk 1 and the annular plate 9, and rubber rings are arranged on the outer sides of the rotating disk 1 and the annular plate 9, which can effectively prevent water from entering the switch cabinet through the gap, thereby preventing the incoming line bushing from moisture.

[0028] like Figure 3 As shown, the side walls of the rotating disk 1 and the annular plate 9 are fixedly connected with magnetic sheets, and the rotating disk 1 and the annular plate 9 are connected by magnetic attraction. The rotating disk 1 and the annular plate 9 are connected by magnetic attraction, which ensures that the triangular baffle 8 between the rotating disk 1 and the annular plate 9 will not detach therefrom, thereby ensuring the stability of the overall structure.

[0029] like Figure 4 As shown, the side wall of the rotating disk 1 is provided with scale lines. By providing scale lines on the outer side wall of the rotating disk 1 , the rotation angle of the rotating disk 1 can be visualized so as to better control the size of the circular opening 13 .

[0030] The method of use and working principle of the device are as follows: first, line markers are set at both the inner and outer ends of the incoming wires, and then a plurality of incoming wires are bundled and arranged using cable ties, and the bundled wires are passed through the round opening 13, and a section of heat shrink tube is wrapped around the outer jacket of the wires, and the heat shrink tube is heated with a lighter to deform it and then wrapped around the outer side of the incoming wires;

[0031] Subsequently, the handle 2 is held to rotate the rotating disk 1, and the rotating disk 1 is used to drive the arc groove 4 to rotate. One side of the triangular baffle 8 is clamped between the positioning column 5 and the arc groove 4, and slides along the arc trajectory of the arc groove 4, and the other side is limited by the straight slider 11 and the straight guide groove 12, and moves along the straight trajectory of the straight guide groove 12, which will cause one end of the triangular baffle 8 to shrink inward, so that the inner side wall of the triangular baffle 8 is firmly clamped on the outer side of the incoming line with the heat shrink tube and temporarily fixed.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An inlet bushing of a combined gas-insulated switchgear cabinet, comprising a rotating disk (1) and an annular plate (9) respectively arranged on the inner and outer side walls of a cabinet plate (6), characterized in that: The side walls of the rotating disk (1) and the annular plate (9) are both fixedly connected with a bellows (3); the side wall of the cabinet plate (6) is provided with a round opening (13); a triangular baffle (8) is arranged between the rotating disk (1) and the cabinet plate (6); a positioning column (5) is fixedly connected to one side of the triangular baffle (8); a straight slider (11) is fixedly connected to the other side of the triangular baffle (8); a straight guide groove (12) is provided on the side wall of the cabinet plate (6); the straight slider (11) is slidably connected to the straight guide groove (12); an arc groove (4) is provided on the side wall of the rotating disk (1); the triangular baffle (8) is slidably connected to the arc groove (4).

2. The inlet bushing of a combined gas-insulated switchgear according to claim 1, characterized in that: A connecting column (10) is fixedly connected between the rotating disk (1) and the annular plate (9).

3. The inlet bushing of a combined gas-insulated switchgear according to claim 2, characterized in that: An annular through groove (7) is provided on the outer side wall of the cabinet plate (6), and the outer side wall of the connecting column (10) is slidably connected to the annular through groove (7).

4. The inlet bushing of a combined gas-insulated switchgear according to claim 1, characterized in that: The outer side wall of the rotating disk (1) is fixedly connected to a handle (2).

5. The inlet bushing of a combined gas-insulated switchgear according to claim 1, characterized in that: The rotating disk (1) and the side edges of the annular plate (9) are fixedly connected with sealing rings.

6. The inlet bushing of a combined gas-insulated switchgear according to claim 1, characterized in that: The side walls of the rotating disk (1) and the annular plate (9) are both fixedly connected with magnetic sheets, and the rotating disk (1) and the annular plate (9) are connected by magnetic attraction.

7. The inlet bushing of a combined gas-insulated switchgear according to claim 1, characterized in that: The side wall of the rotating disk (1) is provided with scale lines.

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