CN217562383U - Low-voltage sleeve - Google Patents

Abstract

The utility model discloses a low-voltage bushing device, which comprises a conductive joint, a connecting rod, a conductive rod, a box plate and a plurality of installation holes, wherein the connecting rod is arranged on the conductive joint; the conducting rod is sleeved with a porcelain bushing, the inner side of the porcelain bushing is attached to the outer side face of the conducting rod, and the porcelain bushing is positioned on the upper side of the box board; be equipped with the second rubber ring between boxboard and the insulator, be equipped with first rubber ring between insulator and connecting rod, threaded connection has the nylon lower cover on the conducting rod, is equipped with the arch on the nylon lower cover, and the nylon lower cover is located the downside of boxboard, protruding top and boxboard top surface parallel and level. The utility model provides a low-voltage bushing utilizes threaded connection's nylon lower cover on the conducting rod, adjusts the porcelain bushing and the clamping-force of nylon lower cover to the boxboard through rotatory nylon lower cover to realize that the porcelain bushing passes through the fixed mounting of conducting rod on the boxboard, easy operation and save time.

Description

Low-voltage sleeve

Technical Field

The utility model relates to a high-tension apparatus field, more specifically relates to a low-voltage bushing.

Background

The low-voltage sleeve is a main insulation device outside the transformer box, and the outgoing lines of the transformer winding must penetrate through the insulation sleeve to enable the outgoing lines and the transformer shell to be insulated, and meanwhile, the low-voltage sleeve plays a role in fixing the outgoing lines.

At present, the mounting mode of the low-voltage sleeve is that a threaded hole is drilled on a box plate, a lower pressing cover is mounted on the lower side of a porcelain sleeve, a through hole in the lower pressing cover is aligned with a threaded hole in the box plate, a bolt is utilized to penetrate through the box plate and the threaded hole in the lower pressing cover to be fastened, and then the sleeve is fastened through an upper pressing cover on the upper side of a screwed sleeve to realize fixation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low pressure sleeve pipe aims at solving and has sleeve pipe and the fixed complicated technical problem of flow of boxboard among the prior art.

In order to achieve the above object, an aspect of the present invention provides a low voltage bushing, including: the box plate is provided with a conductive joint, the conductive joint is provided with a connecting rod, the connecting rod is provided with a conductive rod, the conductive rod is inserted on the box plate, and the box plate is provided with a mounting hole for the insertion of the conductive rod; a porcelain bushing is sleeved on the conducting rod, the inner side of the porcelain bushing is attached to the outer side face of the conducting rod, and the porcelain bushing is positioned on the upper side of the box board; the boxboard with be provided with the second rubber ring between the porcelain bushing, in the porcelain bushing with be provided with first rubber ring between the connecting rod, threaded connection has the nylon lower cover on the conducting rod, be provided with the arch on the nylon lower cover, the nylon lower cover is located the downside of boxboard, protruding top with boxboard top surface parallel and level, the protruding insulating effect that has played between conducting rod and the boxboard makes low pressure sleeve pipe fixed connection at the boxboard through the centre gripping of nylon lower cover and porcelain bushing to the boxboard.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the porcelain bushing is used for butt boxboard at the upside of boxboard, and threaded connection has nylon lower cover and nylon lower cover to set up the downside at the boxboard on the conducting rod, adjusts the porcelain bushing and nylon lower cover clamping-force to the boxboard through rotatory nylon lower cover to realize that the porcelain bushing passes through the fixed mounting of conducting rod on the boxboard, easy operation and save time.

2. The second rubber ring is arranged between the box plate and the porcelain bushing and used for sealing oil in the transformer and ensuring good insulativity and sealability in the transformer.

Drawings

The figure is a schematic sectional structure diagram of the low-pressure sleeve according to the embodiment of the invention;

wherein, the corresponding relation between the reference numbers and the component names in the figure is as follows:

1. a conductive joint; 2. threading holes; 3. a connecting rod; 4. a first rubber ring; 5. a porcelain bushing; 6. a second rubber ring; 7. a boxboard; 8. sleeving nylon; 801. a protrusion; 9. a third rubber ring; 10. a nut; 11. a conductive rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The low pressure bushing according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in the following figures, according to the present invention, some embodiments provide a low pressure bushing, including: conductive joint 1, it has through wires hole 2 to open on conductive joint 1, specifically, conductive joint 1 is the cuboid and for the platykurtic, and conductive joint 1's appearance still can be for cylinder etc. do not do too much restriction here, has still seted up through wires hole 2 on conductive joint 1 to make things convenient for the connection of wire, through wires hole 2 on conductive joint 1 is 4, is connected with conductive joint 1 with many wires when guaranteeing to different situation and environment. In order to facilitate the installation of the porcelain bushing 5 on the conducting rod 11, the connecting rod 3 is arranged on the conductive connector 1, the conducting rod 11 is arranged on the connecting rod 3, the diameter of the conducting rod 11 is smaller than the diameter of the connecting rod 3, and preferably, the conductive connector 1 and the conducting rod 11 are integrally formed, so that the production and the manufacture are convenient. Of course, the conductive contact 1 and the connecting rod 3 may be welded.

Meanwhile, the conductive rod 11 is provided with a threading hole 2, which facilitates the connection of the wires in the box board 7. The conducting rod 11 is inserted on the box plate 7, and the box plate 7 is provided with a mounting hole for the conducting rod 11; the conducting rod 11 is sleeved with a porcelain bushing 5, the porcelain bushing 5 is positioned on the upper side of the box plate 7, the inner diameter of the porcelain bushing 5 is the same as the diameter of the conducting rod 11, seamless connection is formed between the porcelain bushing 5 and the conducting rod 11, and a sealing effect is achieved. Be provided with first rubber ring 4 between insulator 5 and connecting rod 3, prevent that insulator 5 from leading to the fastening force too big after 3 direct contacts of connecting rod, cause destruction to 5 upper ends of insulator, and first rubber ring 4 still has sealing effect.

Specifically, threaded connection has nylon lower cover 8 on the conducting rod 11, be provided with protruding 801 under the nylon on cover 8, protruding 801 top and boxboard 7 top surface parallel and level, nylon lower cover 8 is located the downside of boxboard 7, the material of nylon lower cover 8 has insulating effect, protruding 801 that is located on nylon lower cover 8 is the nylon material equally, the external diameter of protruding 801 is the same with the internal diameter of mounting hole on the boxboard 7, thereby be convenient for location when nylon lower cover 8 installs and played the insulating effect between conducting rod 11 and the boxboard 7. The threaded connection of the conducting rod 11 and the nylon lower sleeve 8 also has certain sealing performance, and the outward leakage condition of oil in the transformer is reduced. In order to avoid the problems of looseness and rotation of the nylon lower sleeve 8 after long-time use, a nut 10 is arranged on the lower side of the nylon lower sleeve 8.

And a second rubber ring 6 is arranged between the box plate 7 and the porcelain sleeve 5, plays a role in protecting the lower end of the porcelain sleeve 5 and plays a role in sealing between the porcelain sleeve 5 and the box plate 7. In order to increase the friction force between the nylon lower sleeve 8 and the nut 10, a third rubber ring 9 is arranged between the nylon lower sleeve 8 and the nut 10.

The using method comprises the following steps: the connection sequence from top to bottom between the conductive connector 1 and the conductive rod 11 is sequentially that, the first rubber ring 4, the porcelain bushing 5 and the second rubber ring 6, then the conductive rod 11 is directly inserted into the mounting hole of the box plate 7, then the nylon lower bushing 8 is screwed into the conductive rod 11, the fixing of the porcelain bushing 5 and the nylon lower bushing 8 on the box plate 7 is ensured by rotating the nylon lower bushing 8, then the third rubber ring 9 is mounted at the lower end of the nylon lower bushing 8, and the screw nut 10 is screwed into the third rubber ring 9.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance: the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A low pressure bushing, comprising:

the box board comprises a conductive connector (1), wherein a connecting rod (3) is arranged on the conductive connector (1), a conductive rod (11) is arranged on the connecting rod (3), the conductive rod (11) is inserted into the box board (7), and a mounting hole for inserting the conductive rod (11) is formed in the box board (7); the porcelain bushing (5) is sleeved on the conducting rod (11), the inner side of the porcelain bushing (5) is attached to the outer side face of the conducting rod (11), and the porcelain bushing (5) is located on the upper side of the box plate (7); boxboard (7) with be provided with second rubber ring (6) between insulator (5), in insulator (5) with be provided with first rubber ring (4) between connecting rod (3), threaded connection has lower cover of nylon (8) on conducting rod (11), be provided with protruding (801) on lower cover of nylon (8), lower cover of nylon (8) is located the downside of boxboard (7), protruding (801) top with boxboard (7) top surface parallel and level, protruding (801) have been played conducting rod (11) with insulating effect between boxboard (7), through lower cover of nylon (8) with insulator (5) is right the centre gripping of boxboard (7) makes low pressure sleeve pipe fixed connection in on boxboard (7).

2. The low pressure bushing of claim 1, wherein:

and a nut (10) is arranged on the lower side of the nylon lower sleeve (8).

3. The low pressure bushing of claim 2, wherein:

and a third rubber ring (9) is arranged between the nylon lower sleeve (8) and the nut (10).

4. The low pressure bushing of claim 1, wherein:

the conductive connector (1) is provided with a threading hole (2), and the conductive rod (11) is provided with the threading hole (2).

5. The low pressure bushing of claim 3, wherein:

the conductive connector (1) and the conductive rod (11) are integrally formed.

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