CN217239238U

CN217239238U - Secondary insulation sleeve seals conducting rod

Info

Publication number: CN217239238U
Application number: CN202220532998.XU
Authority: CN
Inventors: 董修峰; 张恒; 王琨; 杨玉涛; 胡楠
Original assignee: Dandong Deyuan Electrical Appliance Co ltd
Current assignee: Dandong Deyuan Electrical Appliance Co ltd
Priority date: 2022-03-13
Filing date: 2022-03-13
Publication date: 2022-08-19
Anticipated expiration: 2032-03-13

Abstract

The utility model relates to a secondary insulating sleeve sealing conducting rod, which comprises a first conducting rod, a second conducting rod and a transformer big cover, wherein a first sleeve is sleeved outside the first conducting rod, the first sleeve is arranged on the upper end surface of the transformer big cover, an oil-proof sealing flat gasket is arranged between the first sleeve and the transformer big cover, a sealing ball gasket is arranged above the first sleeve, a rain-proof cap is arranged above the sealing ball gasket, the top end of the rain-proof cap is provided with a wire outlet conducting rod, the bottom of the transformer big cover is provided with the second sleeve, the bottom of the second sleeve is provided with an insulating base plate, the second conducting rod is arranged on the insulating base plate and is formed by combining the first conducting rod and the second conducting rod, but quick replacement maintenance conducting rod practices thrift manpower, time and expense, sets up the conducting rod of being qualified for the next round of competitions, and the assembly of being convenient for is spacing to external lead wire, designs the pyrocondensation pipe, can prevent to take place creepage and phenomenon of striking sparks.

Description

Secondary insulation sleeve seals conducting rod

Technical Field

The utility model relates to a conducting rod technical field specifically is a secondary insulation support seals conducting rod.

Background

In the field of high-voltage power transmission and distribution, high-voltage electricity is connected through a conducting rod, and the main structure of the conducting rod is composed of a conducting rod body made of a metal material with good conductivity, an insulating layer arranged on the surface of the conducting rod body and connecting parts arranged at two ends of the conducting rod body.

Chinese patent publication No. CN2399811Y discloses a hanging-free conductive rod, which has the problems of inconvenient flexible installation and maintenance, inconvenient mass production and high production cost, and the insulating layer on the surface of the conductive rod body is generally formed by spraying, however, the thickness of the insulating layer is not uniform during spraying, so that the voltage distribution on the surface is not uniform, and partial discharge is caused, thereby causing phenomena such as creepage, sparking and aging of the insulating layer.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a secondary insulation support seals conducting rod to solve the technical problem who mentions in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a secondary insulating sleeve sealing conducting rod comprises a first conducting rod, a second conducting rod and a transformer large cover, wherein a first sleeve is sleeved outside the first conducting rod, the first sleeve is arranged on the upper end face of the transformer large cover, an oil-resistant sealing flat gasket is arranged between the first sleeve and the transformer large cover, a sealing ball gasket is arranged above the first sleeve, a rain-proof cap is arranged above the sealing ball gasket, an outgoing conducting rod is arranged at the top end of the rain-proof cap, a second sleeve is arranged at the bottom of the transformer large cover, an insulating base plate is arranged at the bottom of the second sleeve, the second conducting rod is installed on the insulating base plate, the first conducting rod penetrates through the first sleeve, the transformer large cover and the second sleeve to be in adaptive connection with the second conducting rod, a special-shaped gasket is arranged at the joint of the insulating base plate and the second sleeve, and the secondary insulating base plate is formed by combining the first conducting rod and the second conducting rod, but quick replacement maintenance conducting rod practices thrift manpower, time and expense.

Preferably, all link up along the axial on first conducting rod and the second conducting rod and be equipped with the hole of dodging, first conducting rod outside cover is equipped with the pyrocondensation pipe, replaces original spraying insulating material and the insulating layer that forms through the pyrocondensation pipe, makes the distribution of conducting rod periphery insulating layer more even, prevents creepage and the phenomenon of striking sparks.

Preferably, the two ends of the heat shrinkable tube are sleeved with protective covers, the two ends of the heat shrinkable tube are sleeved on the outer peripheral surfaces of the protective covers and the first conducting rods, and the protective covers are arranged, so that the insulation length is increased, the connecting action of the conducting rods is safer and more reliable, and the phenomena of creepage and sparking are effectively prevented.

Preferably, the outgoing conducting rod comprises a flat gasket and a belleville spring, the flat gasket and the belleville spring are sleeved on the first conducting rod, a fixing sleeve is arranged above the flat gasket, the fixing sleeve is arranged at the top of the first conducting rod, the top end of the fixing sleeve is fixedly provided with an outgoing screw, the fixing sleeve is convenient to install through the flat gasket and the belleville spring, the conducting rod is simple in manufacturing process and low in cost, and the outgoing conducting rod has the advantages of being attractive and convenient to transport.

Preferably, the outgoing screw is sleeved with a sealing washer, a flat gasket and two belleville springs are arranged above the sealing washer, two groups of the flat gaskets and two groups of the belleville springs are symmetrically arranged, one side of each belleville spring is provided with a limiting nut, and the clamping of the external lead is realized by arranging the limiting nut, the flat gasket and the belleville springs.

Preferably, sealant is coated between the sealing ball pad and the first conducting rod and between the rain cap and the first conducting rod, and the sealing performance between the first conducting rod and the sealing ball pad and between the first conducting rod and the rain cap is improved by coating the sealant.

In a further preferred mode, the first sleeve and the second sleeve are integrally manufactured by epoxy resin, the processing technology is optimized, the processing efficiency is improved, and the oil resistance and the high-pressure resistance of the first sleeve and the second sleeve are improved by using the epoxy resin material.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. in the utility model, the first sleeve and the second sleeve are integrally molded by adopting epoxy resin, the processing technology is optimized, the processing efficiency is improved, and the oil resistance and the high pressure resistance of the first sleeve and the second sleeve are improved by adopting epoxy resin materials; through adopting first conducting rod and second conducting rod combination to form, but quick replacement maintenance conducting rod practices thrift manpower, time and expense.

2. In the utility model, the heat shrink tube is adopted as the insulating layer outside the first conducting rod, so that the insulating layer at the periphery of the first conducting rod is distributed more uniformly; set up the protection casing, prolonged the insulating length of first conducting rod, prevented to take place creepage and the phenomenon of striking sparks.

3. The utility model discloses in, adopt the conducting rod manufacturing process simple of being qualified for the next round of competitions, with low costs and be convenient for the assembly, through setting up stop nut, flat gasket and disc spring, realize handling the double-layered line of external lead wire.

Drawings

Fig. 1 is a schematic view of an overall structure of a secondary insulating sleeve sealing conductive rod of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the first conductive rod, the second conductive rod, the first sleeve and the second sleeve of the present invention;

FIG. 3 is a schematic view of the overall structure of the current conducting rod in danger according to the present invention;

FIG. 4 is a schematic view of the overall structure of the first conductive rod, the heat shrinkable tube and the protective cover according to the present invention;

fig. 5 is a schematic sectional view of the first conductive rod, the heat shrinkable tube and the protective cover according to the present invention.

In the figure: 1. a first conductive rod; 2. a second conductive rod; 3. a large cover of the transformer; 4. a first sleeve; 5. an oil-resistant sealing flat gasket; 6. sealing the ball pad; 7. rain-proof caps; 8. an outgoing line conductive rod; 9. a second sleeve; 10. an insulating base plate; 11. a special-shaped gasket; 12. avoiding holes; 13. heat shrink tubing; 14. a protective cover; 15. a flat gasket; 16. a belleville spring; 17. a fixed sleeve; 18. a wire outlet screw rod; 19. a sealing gasket; 20. a limit nut; 21. and (7) sealing the glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a secondary insulating sleeve sealing conductive rod comprises a first conductive rod 1, a second conductive rod 2 and a transformer big cover 3, wherein a first sleeve 4 is sleeved outside the first conductive rod 1, the first sleeve 4 is arranged on the upper end surface of the transformer big cover 3, an oil-proof sealing flat gasket 5 is arranged between the first sleeve 4 and the transformer big cover 3, a sealing ball gasket 6 is arranged above the first sleeve 4, a rain-proof cap 7 is arranged above the sealing ball gasket 6, an outgoing conductive rod 8 is arranged at the top end of the rain-proof cap 7, a second sleeve 9 is arranged at the bottom of the transformer big cover 3, an insulating base plate 10 is arranged at the bottom of the second sleeve 9, the second conductive rod 2 is arranged on the insulating base plate 10, the first conductive rod 1 passes through the first sleeve 4, the transformer big cover 3 and the second sleeve 9 to be connected with the second conductive rod 2 in a matching manner, a special-shaped gasket 11 is arranged at the joint of the insulating base plate 10 and the second sleeve 9, sealant 21 is coated between the sealing ball pad 6 and the first conducting rod 1 and between the rain-proof cap 7 and the first conducting rod 1, the first sleeve 4 and the second sleeve 9 are integrally manufactured by epoxy resin, when in installation, the first conducting rod 1 is screwed with the second conducting rod 2 to form the composite, the top of the first conducting rod 1 is provided with an outgoing conducting rod 8, the first conducting rod 1 sequentially passes through the rain-proof cap 7, the sealing ball pad 6, the first sleeve 4 and the oil-proof sealing flat pad 5, the composite of the first conducting rod 1 and the first sleeve 4 is installed on the upper end face of the transformer big cover 3, the bottom of the second sleeve 9 is provided with an insulating padding plate 10, the second conducting rod 2 is installed on the insulating padding plate 10, a special-shaped gasket 11 is installed between the second conducting rod 2 and the second sleeve 9, the composite of the second conducting rod 2, the insulating padding plate 10 and the second conducting rod 2 is arranged at the lower end of the transformer big cover 3, while immersed in oil.

Referring to fig. 4-5, in this embodiment, the first conductive rod 1 and the second conductive rod 2 are both provided with an avoiding hole 12 along the axial direction, a heat shrinkable tube 13 is sleeved outside the first conductive rod 1, two ends of the heat shrinkable tube 13 are sleeved with protective covers 14, two ends of the heat shrinkable tube 13 are sleeved on the outer circumferential surfaces of the protective covers 14 and the first conductive rod 1, the heat shrinkable tube 13 plays a role of insulation protection, the protective covers 14 are horn-shaped and made of a silicon rubber material, and the protective covers 14 are extended outwards to prolong the insulation length of the first conductive rod 1, thereby preventing creepage and sparking.

Referring to fig. 1 and 3, in this embodiment, the outgoing conducting rod 8 includes a flat gasket 15 and a belleville spring 16, the flat gasket 15 and the belleville spring 16 are sleeved on the first conducting rod 1, a fixing sleeve 17 is disposed above the flat gasket 15, the fixing sleeve 17 is disposed at the top of the first conducting rod 1, an outgoing screw 18 is fixedly disposed at the top of the fixing sleeve 17, a sealing gasket 19 is sleeved on the outgoing screw 18, the flat gasket 15 and the belleville spring 16 are disposed above the sealing gasket 19, two sets of the flat gasket 15 and the belleville spring 16 are symmetrically disposed, a limit nut 20 is disposed on one side of each belleville spring 16, the flat gasket 15 and the belleville spring 16 are sleeved on the first conducting rod 1, the first conducting rod 1 extends into the fixing sleeve 17 to be connected with the outgoing screw 18, the outgoing screw 18 is disposed with the sealing gasket 19, two sets of the flat gasket 15, the belleville spring 16 and the limit nut 20 are symmetrically disposed on the sealing gasket 19, and limiting the external lead.

Example 2:

on the basis of embodiment 1, when the transformer large cover is installed, the transformer large cover is formed by screwing a first conducting rod 1 to a second conducting rod 2, an outgoing conducting rod 8 is arranged at the top of the first conducting rod 1, the first conducting rod 1 sequentially penetrates through a rain-proof cap 7, a sealing ball pad 6, a first sleeve 4 and an oil-proof sealing flat pad 5, a combined body of the first conducting rod 1 and the first sleeve 4 is installed on the upper end face of the transformer large cover 3, an insulating base plate 10 is installed at the bottom of a second sleeve 9, the second conducting rod 2 is installed on the insulating base plate 10, a special-shaped gasket 11 is installed between the second conducting rod 2 and the second sleeve 9, and the combined body of the second conducting rod 2, the insulating base plate 10 and the second conducting rod 2 is arranged at the lower end of the transformer large cover 3 and is immersed in oil.

Example 3:

on the basis of embodiment 2, when the heat-shrinkable tube is used, the heat-shrinkable tube 13 plays a role of insulation protection, the protective cover 14 is in a horn shape and made of a silicon rubber material, the protective cover 14 is expanded outwards, the insulation length of the first conducting rod 1 is prolonged, the phenomena of creepage and sparking are prevented, the flat gasket 15 and the belleville spring 16 are sleeved on the first conducting rod 1, the first conducting rod 1 is extended into the fixing sleeve 17 to be connected with the outgoing screw 18, the outgoing screw 18 is provided with the sealing washer 19, the two groups of flat gaskets 15, the belleville spring 16 and the limiting nut 20 are symmetrically arranged on the sealing washer 19, and the external lead is limited.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a sealed conducting rod of secondary insulation support, includes first conducting rod (1), second conducting rod (2) and big lid of transformer (3), its characterized in that: the outer side of the first conducting rod (1) is sleeved with a first sleeve (4), the first sleeve (4) is arranged on the upper end face of a large transformer cover (3), an oil-proof sealing flat gasket (5) is arranged between the first sleeve (4) and the large transformer cover (3), a sealing ball gasket (6) is arranged above the first sleeve (4), a rain-proof cap (7) is arranged above the sealing ball gasket (6), an outgoing conducting rod (8) is arranged at the top end of the rain-proof cap (7), a second sleeve (9) is arranged at the bottom of the large transformer cover (3), an insulating base plate (10) is arranged at the bottom of the second sleeve (9), the second conducting rod (2) is arranged on the insulating base plate (10), and the first conducting rod (1) passes through the first sleeve (4), the large transformer cover (3) and the second sleeve (9) to be in adaptive connection with the second conducting rod (2), and a special-shaped gasket (11) is arranged at the joint of the insulating base plate (10) and the second sleeve (9).

2. The secondary insulating sleeve sealing conducting rod of claim 1, wherein: all link up along the axial on first conducting rod (1) and second conducting rod (2) and be equipped with dodge hole (12), first conducting rod (1) outside cover is equipped with pyrocondensation pipe (13).

3. The secondary insulating sleeve sealed conducting rod as claimed in claim 2, wherein: the two ends of the heat shrinkable tube (13) are sleeved with protective covers (14), and the two ends of the heat shrinkable tube (13) are sleeved on the outer peripheral surfaces of the protective covers (14) and the first conducting rods (1).

4. The secondary insulating sleeve sealing conducting rod of claim 1, wherein: the outgoing line conducting rod (8) comprises a flat gasket (15) and a belleville spring (16), the flat gasket (15) and the belleville spring (16) are sleeved on the first conducting rod (1), a fixing sleeve (17) is arranged above the flat gasket (15), and the fixing sleeve (17) is arranged at the top of the first conducting rod (1) and the top of the fixing sleeve (17) and is fixedly provided with an outgoing line screw (18).

5. The secondary insulating sleeve sealed conducting rod as claimed in claim 4, wherein: the wire outlet device is characterized in that a sealing gasket (19) is sleeved on the wire outlet screw (18), a flat gasket (15) and two belleville springs (16) are arranged above the sealing gasket (19), the flat gasket (15) and the belleville springs (16) are symmetrically arranged in two groups, and a limiting nut (20) is arranged on one side of each belleville spring (16).

6. The secondary insulating sleeve sealing conducting rod of claim 1, wherein: and a sealant (21) is coated between the sealing ball pad (6) and the first conducting rod (1) and between the rain-proof cap (7) and the first conducting rod (1).

7. The secondary insulating sleeve sealing conducting rod of claim 1, wherein: the first sleeve (4) and the second sleeve (9) are integrally manufactured by epoxy resin.