Anti-tumbling capacitor bushing

Abstract

The utility model relates to the technical field of transformers, and particularly discloses an anti-tumbling capacitor bushing which comprises a lower insulating sleeve. The lower insulating sleeve is communicated and fixedly connected with an upper insulating sleeve; the upper insulating sleeve is fixedly connected with a first flange plate; the upper end of the upper insulating sleeve is communicated and fixedly connected with an oil conservator; the oil conservator is fixedly connected with a second flange plate; the conservator is fixedly connected with a wiring terminal; the first flange plate and the second flange plate are provided with a plurality of fixing holes; the planar supporting plate is detachably fixed to the first flange plate and the second flange plate through the nut pair, the lower surface of the planar supporting plate is of a planar structure, and the planar supporting plate can be stably supported on the ground, so that the capacitor sleeve does not roll, and the capacitor sleeve is safer during transportation and movement; and meanwhile, one end of the capacitor bushing can be supported by independently using the plane supporting plate, and the rolling of the capacitor bushing can be limited, so that the capacitor bushing is safer to place, and the problem that the existing capacitor bushing is easy to roll and fall off when being placed in a plane is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a capacitance bushing that prevents rolling. Background Art

[0002] The main function of the capacitance bushing is to provide electrical insulation between the high-voltage leads from the transformer coil to the outside of the oil tank. It ensures that high voltage does not penetrate into other parts of the transformer or the ground, thus guaranteeing the safe operation of the transformer.

[0003] The Chinese invention patent with the publication number of CN103985487B was published on March 23, 2018, and discloses a socket-type enhanced sealing terminal for a power capacitor, including a wiring assembly, a ceramic insulator, and an installation assembly; a ring-shaped positioning boss protruding radially is provided on the outer wall of the lower part of the insulator; the installation assembly includes a metal base, an annular sealing ring, and a base tube; the annular sealing ring is sleeved on the outer wall of the lower part of the insulator and is arranged adjacent to the bottom wall of the ring-shaped positioning boss; the metal base includes a crimping part, a socket part, and a rolling ring; the rolling ring is formed by rolling the top end of the socket part of the base along the inward direction. The base tube includes a welding part and a sleeve part; the welding part of the base tube is fixedly connected to the crimping part of the metal base by welding. The wiring assembly includes a sealing gasket, a bolt, and a rolling connecting piece; the bottom end of the rolling part of the rolling connecting piece is rolled and deformed to protrude inward to form a rolling snap ring. The structure of the present invention is relatively reasonable and compact, and can effectively prevent the metal base from slipping circumferentially along the insulator, thereby ensuring its sealing performance.

[0004] However, the above-mentioned disclosed solution has the following deficiencies: The existing capacitance bushing uses a ceramic-made rotary-shaped insulator, which makes the structure stable. However, due to its rotary shape, it is not stable enough when placed on a plane, and it is easy to roll and collide or fall and cause damage during movement and fixation. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problem that the existing capacitance bushing uses a ceramic-made rotary-shaped insulator, which makes the structure stable. However, due to its rotary shape, it is not stable enough when placed on a plane, and it is easy to roll and collide or fall and cause damage during movement and fixation, and to provide a capacitance bushing that prevents rolling.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions to implement;

[0007] A capacitance bushing for preventing rolling, as described in the present utility model, includes a lower insulating sleeve; an upper insulating sleeve is connected and fixedly attached to the lower insulating sleeve; a first flange is fixedly attached to the upper insulating sleeve; an oil pillow is connected and fixedly attached to the upper end of the upper insulating sleeve; a second flange is fixedly attached to the oil pillow; a terminal is fixedly attached to the oil pillow; the first flange and the second flange are provided with a plurality of fixing holes; a nut pair is inserted into the fixing holes; a flat support plate is sleeved on the nut pair.

[0008] Further, an arc-shaped groove is formed in the flat support plate corresponding to the nut pair.

[0009] Further, a positioning and locking hole is formed in the flat support plate.

[0010] Further, a positioning and moving shaft is inserted into the positioning and locking hole.

[0011] Further, a nested groove is formed in the flat support plate.

[0012] A capacitance bushing for preventing rolling provided by the present utility model has the following beneficial effects:

[0013] 1. In the present utility model, the flat support plate is detachably fixed to the first flange and the second flange through the nut pair. By using the fact that the lower surface of the flat support plate is a flat structure, it can stably support on the ground, so that the capacitance bushing will not roll, making it safer during transportation and movement; at the same time, the flat support plate can also be used alone to support one end of the capacitance bushing, which can also limit the rolling of the capacitance bushing, making it safer during placement, solving the problem that the existing capacitance bushing is prone to rolling and falling when placed flat.

[0014] 2. In the present utility model, by inserting the positioning and moving shaft into the positioning and locking hole, when it is necessary to move the capacitance bushing, two people can hold both ends of the positioning and moving shaft to lift the capacitance bushing. Combined with the upper insulating sleeve made of silicone rubber, it has a low weight and can be carried by two people, facilitating handling, solving the problem that the existing upper insulating sleeve made of ceramics is too heavy to be manually carried. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes in detail the specific embodiments of the present utility model in conjunction with the drawings;

[0016] Figure 1 It is an isometric structural schematic diagram of the present utility model on Monday;

[0017] Figure 2 It is a front view structural schematic diagram of the present utility model;

[0018] Figure 3 It is a combined state structural schematic diagram of the present utility model.

[0019] Description of reference numerals in the figure: 1. Lower insulating sleeve; 2. First flange; 3. Upper insulating sleeve; 4. Second flange; 5. Conservator; 6. Terminal; 7. Fixing hole; 8. Nut pair; 9. Flat support plate; 10. Arc groove; 11. Positioning and locking hole; 12. Nesting groove; 13. Positioning moving shaft. Specific embodiments

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] It should be noted that all directional indications (such as up-down-left-right-front-back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The described connection can be a direct connection or an indirect connection.

[0023] Please refer to Figures 1-3 As shown, a capacitor bushing that prevents rolling includes a lower insulating sleeve 1; an upper insulating sleeve 3 is connected and fixed to the lower insulating sleeve 1; a first flange 2 is fixed to the upper insulating sleeve 3; an oil conservator 5 is connected and fixed to the upper end of the upper insulating sleeve 3; a second flange 4 is fixed to the oil conservator 5; a terminal 6 is fixed to the oil conservator 5; a plurality of fixing holes 7 are provided on the first flange 2 and the second flange 4; a nut pair 8 is inserted into the fixing hole 7; a flat support plate 9 is sleeved on the nut pair 8; during operation, the flat support plate 9 is detachably fixed to the first flange 2 and the second flange 4 through the nut pair 8. By using the fact that the lower surface of the flat support plate 9 is a flat structure, it can stably support on the ground, so that the capacitor bushing will not roll, making it safer during transportation and movement; at the same time, the flat support plate 9 can also be used alone to support one end of the capacitor bushing, which can also limit the rolling of the capacitor bushing, making it safer during placement, and solving the problem that the existing capacitor bushing is easy to roll and fall when placed flat.

[0024] An arc groove 10 is provided on the flat support plate 9 corresponding to the nut pair 8; during operation, through the arc groove 10, the flat support plate 9 and the first flange 2 can be fixed by using a plurality of nut pairs 8, so that rotation will not occur, making it safer during fixation.

[0025] The planar support plate 9 is provided with positioning and locking holes 11; during operation, through the positioning and locking holes 11, when it is fixed to a plane, it can be fixed in cooperation with a ground pile, making it more stable during transportation and movement, and solving the problem that the existing capacitive bushing needs to be protected by a special protection structure to be stably transported during movement.

[0026] A positioning and moving shaft 13 is inserted into the positioning and locking hole 11; during operation, by inserting the positioning and moving shaft 13 into the positioning and locking hole 11, when it is necessary to move the capacitive bushing, two people can hold both ends of the positioning and moving shaft 13 to lift the capacitive bushing. In cooperation with the upper insulating sleeve 3 made of silicone rubber, it has a low weight and can be carried by two people, which is convenient for handling, and solves the problem that the existing upper insulating sleeve 3 made of ceramics is too heavy to be manually carried.

[0027] The planar support plate 9 is provided with nested grooves 12; during operation, by providing nested grooves 12 on the planar support plate 9, two planar support plates 9 can be symmetrically nested and inserted into the nested grooves 12 to complete mutual connection. In cooperation with the positioning and moving shaft 13, locking can be completed, so that multiple capacitive bushings can be fixed in the vertical direction, and a single capacitive bushing can also be stably supported and fixed on a plane to prevent rolling, solving the problem that the existing capacitive bushing cannot be stably supported and fixed on a plane.

[0028] With the above solution, when the utility model is in use, the flat support plate 9 is detachably fixed on the first flange 2 and the second flange 4 through the nut pair 8. By utilizing the fact that the lower surface of the flat support plate 9 is a flat structure, it can stably support on the ground, so that the capacitive bushing will not roll, making it safer during transportation and movement. At the same time, the flat support plate 9 can also be used alone to support one end of the capacitive bushing, which can also limit the rolling of the capacitive bushing, making it safer during placement, thus solving the problem that the existing capacitive bushing is prone to rolling and falling when placed flat. Through the arc-shaped groove 10, multiple nut pairs 8 can be used to fix between the flat support plate 9 and the first flange 2, so that rotation will not occur, making it safer during fixation. Through the positioning and locking hole 11, when fixed to the plane, it can be fixed in cooperation with a ground pile, making it more stable during transportation and movement, thus solving the problem that the existing capacitive bushing needs to be protected by a special protection structure to be stably transported during movement. By inserting the positioning and moving shaft 13 into the positioning and locking hole 11, when the capacitive bushing needs to be moved, two people can hold both ends of the positioning and moving shaft 13 to lift the capacitive bushing. Combined with the upper insulating sleeve 3 made of silicone rubber, it has a low weight and can be carried by two people, which is convenient for handling, thus solving the problem that the existing upper insulating sleeve 3 made of ceramics is too heavy to be manually carried. By providing a nested groove 12 on the flat support plate 9, two flat support plates 9 can be nested and symmetrically inserted into the nested groove 12 to complete the mutual connection. Combined with the positioning and moving shaft 13, locking can be completed, so that multiple capacitive bushings can be fixed in the vertical direction, and a single capacitive bushing placed on the plane can also achieve stable support and fixation to prevent rolling, thus solving the problem that the existing capacitive bushing cannot be stably supported and fixed on the plane.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An anti-rolling capacitor bushing, characterized in that; It includes a lower insulating sleeve (1); an upper insulating sleeve (3) is fixedly connected to the lower insulating sleeve (1) in a communicating manner; a first flange (2) is fixedly connected to the upper insulating sleeve (3); an oil conservator (5) is fixedly connected to the upper end of the upper insulating sleeve (3) in a communicating manner; a second flange (4) is fixedly connected to the oil conservator (5); a terminal (6) is fixedly connected to the oil conservator (5); a plurality of fixing holes (7) are provided on the first flange (2) and the second flange (4); a nut pair (8) is inserted into the fixing hole (7); a flat support plate (9) is sleeved on the nut pair (8).

2. The anti-rolling capacitor bushing according to claim 1, characterized in that: An arc-shaped groove (10) is formed on the flat support plate (9) corresponding to the nut pair (8).

3. The anti-rolling capacitor bushing according to claim 2, characterized in that: A positioning and locking hole (11) is formed on the flat support plate (9).

4. The anti-rolling capacitor bushing according to claim 3, characterized in that: A positioning and moving shaft (13) is inserted into the positioning and locking hole (11).

5. The anti-rolling capacitor bushing according to claim 4, characterized in that: A nested groove (12) is formed on the flat support plate (9).

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