CN212847904U

CN212847904U - Low-voltage electric porcelain insulator

Info

Publication number: CN212847904U
Application number: CN202022244231.0U
Authority: CN
Inventors: 陈霖; 杨俊�; 刘哲
Original assignee: Jiangxi Zhongxin Electric Power Porcelain Co ltd
Current assignee: Jiangxi Zhongxin Electric Power Porcelain Co ltd
Priority date: 2020-10-11
Filing date: 2020-10-11
Publication date: 2021-03-30
Anticipated expiration: 2030-10-11

Abstract

The utility model discloses a low-voltage electric porcelain insulator, including insulating plug and first end seat, the outside of insulating plug is provided with the silastic-layer, and the outside on silastic-layer is provided with first full skirt, one side of first full skirt is provided with the second full skirt, the upper end of insulating plug is provided with a screwed joint, and the lower extreme of insulating plug is provided with No. two screwed joints, a screwed joint's the outside is provided with first end seat, and the upper end of first end seat is provided with first flange. This electric porcelain insulator for cable is provided with first end seat, and ordinary silicon rubber baotou is the outside of direct parcel at the end seat, nevertheless because the material of silicon rubber baotou and end seat is different, and exposes the overlength and cause the splitting between silicon rubber baotou and the end seat easily for outdoor time and break away from, consequently not only can bond fixedly between the two through sealed gluey strong bonding mode, still plays the condition that prevents rainwater infiltration simultaneously.

Description

Low-voltage electric porcelain insulator

Technical Field

The utility model relates to an electric porcelain insulator technical field for the cable specifically is a low voltage electric porcelain insulator.

Background

The insulator is a device which is arranged between conductors with different electric potentials or between the conductors and a grounding component and can bear the action of voltage and mechanical stress, and the insulator is a special insulating control and can play an important role in an overhead transmission line.

At present, most of insulators for low-voltage cables generally adopted in the market are similar in structure, but still have some defects in practical use, for example, the end parts of the insulator groups are not tightly connected and are easy to crack, and meanwhile, the overall rigidity of the common insulator is yet to be enhanced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-voltage electric porcelain insulator to solve the most similar insulator structure that the low-voltage cable that generally adopts on the market at present that proposes in the above-mentioned background art used, nevertheless can still appear some weak points when in-service use, for example the end position of insulator group links up closely enough and splits easily, and its whole rigidity of ordinary insulator simultaneously also remains the problem of strengthening.

In order to achieve the above object, the utility model provides a following technical scheme: a low-voltage electric porcelain insulator comprises an insulating core rod and a first end seat, wherein a silicon rubber layer is arranged on the outer side of the insulating core rod, a first umbrella skirt is arranged on the outer side of the silicon rubber layer, a second umbrella skirt is arranged on one side of the first umbrella skirt, a first threaded joint is arranged at the upper end of the insulating core rod, a second threaded joint is arranged at the lower end of the insulating core rod, a first end seat is arranged on the outer side of the first threaded joint, a first flange is arranged at the upper end of the first end seat, a screw hole is formed in the periphery of the edge of the first flange, a second end seat is arranged on the outer side of the second threaded joint, a silicon rubber head is arranged on the outer side of the second end seat and the outer side of the first end seat, a sealant is arranged at the joint of the silicon rubber head, the second end seat and the first end seat, a chuck is arranged at the lower end of, and a second flange is arranged at the lower end of the second end seat.

Preferably, the first end seat and the second end seat are bonded and fixed with the silicone rubber head through a sealant, and the silicone rubber head is distributed in a cylindrical shape.

Preferably, the first threaded joint and the second threaded joint at the upper end and the lower end of the insulating core rod are in threaded connection with the first end seat and the second end seat respectively, and the first threaded joint and the second threaded joint are identical in structural size.

Preferably, the threading hole penetrates through two sides of the chuck, and the outer diameter of the second end seat at the upper end of the chuck is the same as that of the first end seat.

Preferably, the first umbrella skirt and the second umbrella skirt are uniformly distributed along the outer side of the silicone rubber layer, and the outer diameter of the first umbrella skirt is larger than that of the second umbrella skirt.

Preferably, screw holes are formed in the peripheries of the first flange and the second flange, and the first flange and the second flange are identical in structural size.

Compared with the prior art, the beneficial effects of the utility model are that: this electric porcelain insulator that cable was used is provided with first end seat, first end seat and second end seat form the bonding through sealed glue and silicon rubber baotou fixed, ordinary silicon rubber baotou is the outside at the end seat of direct parcel, but because the material of silicon rubber baotou and end seat is different, and outdoor time exposes the overlength and causes splitting apart from between silicon rubber baotou and the end seat easily, consequently, strong bonding mode through sealed glue not only can bond fixedly between the two, still play the condition that prevents rainwater infiltration simultaneously, and first end seat and second end seat then mainly play and carry out fixed effect to first flange and chuck.

A screwed joint and No. two screwed joints at both ends constitute threaded connection between first end seat and the second end seat respectively about the insulating plug, because do not have lug connection between ordinary end seat and the insulating plug, but wrap up the mode of or inside block through the silicon rubber package head to the end seat and fix, but such mode causes its outside silicon rubber layer to take place to drag the phenomenon of deformation easily, thereby hanging of giving the cable conductor and establishing and having brought certain hidden danger, consequently, the screwed connection mode through a screwed joint and No. two screwed joints not only can strengthen first end seat and second end seat to the fixed strength between the insulating plug, it is more convenient also to make its equipment operation simultaneously.

The through wires hole runs through in the both sides of chuck, and the main effect of chuck lies in alternating fixedly through the through wires hole to the cable, because its both ends of ordinary insulator group have set up the flange greatly more, and then need external subassembly when fixing the cable, so can make the cable more convenient when alternating through the mode to chuck snap-on, and the chuck also plays the cooperation second end socket simultaneously to carry out the effect of fixing to the second flange.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 2 according to the present invention.

In the figure: 1. an insulating core rod; 2. a silicone rubber layer; 3. a first shed; 4. a second shed; 5. a first threaded joint; 6. a second threaded joint; 7. a first end seat; 8. a first flange; 9. a screw hole; 10. a second end seat; 11. a silicon rubber wrapping head; 12. sealing glue; 13. a chuck; 14. threading holes; 15. a second flange.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a low-voltage electric porcelain insulator comprises an insulating core rod 1, a silicon rubber layer 2, a first umbrella skirt 3, a second umbrella skirt 4, a first threaded joint 5, a second threaded joint 6, a first end seat 7, a first flange 8, a screw hole 9, a second end seat 10, a silicon rubber head 11, a sealant 12, a chuck 13, a threading hole 14 and a second flange 15, wherein the silicon rubber layer 2 is arranged on the outer side of the insulating core rod 1, the first umbrella skirt 3 is arranged on the outer side of the silicon rubber layer 2, the second umbrella skirt 4 is arranged on one side of the first umbrella skirt 3, the first threaded joint 5 is arranged at the upper end of the insulating core rod 1, the second threaded joint 6 is arranged at the lower end of the insulating core rod 1, the first end seat 7 is arranged on the outer side of the first threaded joint 5, the first flange 8 is arranged at the upper end of the first end seat 7, the screw hole 9 is arranged on the periphery of the first flange 8, the second end seat 10 is arranged on the outer, a silicone rubber head 11 is arranged on the outer sides of the second end seat 10 and the first end seat 7, a sealant 12 is arranged at the joint of the silicone rubber head 11 and the second end seat 10 as well as the first end seat 7, a chuck 13 is arranged at the lower end of the second end seat 10, threading holes 14 are arranged on two sides of the chuck 13, and a second flange 15 is arranged at the lower end of the second end seat 10;

the first end seat 7 and the second end seat 10 are bonded and fixed with the silicon rubber ferrule 11 through the sealant 12, the silicon rubber ferrule 11 is distributed in a cylindrical shape, the common silicon rubber ferrule 11 is directly wrapped on the outer side of the end seat, but the silicon rubber ferrule 11 and the end seat are made of different materials, and the silicon rubber ferrule 11 and the end seat are easy to crack and separate after being exposed for too long outdoor time, so that the silicon rubber ferrule 11 and the end seat can be bonded and fixed through the strong bonding mode of the sealant 12, and meanwhile, the rainwater infiltration is prevented, and the first end seat 7 and the second end seat 10 mainly play a role in fixing the first flange 8 and the chuck 13;

the first threaded joint 5 and the second threaded joint 6 at the upper end and the lower end of the insulating core rod 1 are in threaded connection with the first end seat 7 and the second end seat 10 respectively, the first threaded joint 5 and the second threaded joint 6 are identical in structural size, and because the common end seat is not directly connected with the insulating core rod 1, but is fixed by wrapping or internally clamping the end seat through the silicon rubber head 11, but the silicon rubber layer 2 outside the common end seat is easy to pull and deform in such a way, certain hidden danger is brought to the hanging of a cable, the fixing strength of the first end seat 7 and the second end seat 10 to the insulating core rod 1 can be enhanced through the threaded connection mode of the first threaded joint 5 and the second threaded joint 6, and meanwhile, the assembling operation of the insulating core rod is more convenient;

the threading holes 14 penetrate through two sides of the chuck 13, the outer diameter of the second end seat 10 at the upper end of the chuck 13 is the same as that of the first end seat 7, the chuck 13 mainly has the advantages that the cable is fixedly penetrated through the threading holes 14, the flanges are mostly arranged at two ends of the common insulator group, and an external component is required when the cable is fixed, so that the cable is more conveniently penetrated through by directly fixing the chuck 13, and meanwhile, the chuck 13 also plays a role in matching with the second end seat 10 and fixing the second flange 15;

the first umbrella skirt 3 and the second umbrella skirt 4 are uniformly distributed along the outer side of the silicon rubber layer 2, the outer diameter of the first umbrella skirt 3 is larger than that of the second umbrella skirt 4, the silicon rubber layer 2 mainly plays a role in protecting the insulation core rod 1 and fixing the first umbrella skirt 3 and the second umbrella skirt 4, meanwhile, the silicon rubber layer 2 also prolongs the service life of the whole insulation sub-group, and the first umbrella skirt 3 and the second umbrella skirt 4 play a role in increasing the creepage distance of the insulation sub-group, so that the use safety of the insulation sub-group is ensured;

all be provided with screw 9 around the edge of first flange 8 and second flange 15, and first flange 8 is the same with the structural dimension of second flange 15, and first flange 8 is firm with the main effect of second flange 15 lies in connecting between the structure that can fix equipment and needs, and first flange 8 is the same with the structural dimension of second flange 15 then makes its installation more convenient, and need not consider the difference of positive and negative tip.

The working principle is as follows: for the low-voltage electric porcelain insulator, firstly, a first end seat 7 is in threaded connection with a first threaded joint 5, then a second end seat 10 is in threaded connection with a second threaded joint 6, so that the first end seat 7, the second end seat 10 and an insulating core rod 1 form a whole, next, sealant 12 is respectively injected into a joint gap between a silicon rubber ferrule 11 and the first end seat 7 and the second end seat 10, wherein the common silicon rubber ferrule 11 is directly wrapped on the outer side of the end seat, but because the silicon rubber ferrule 11 and the end seat are made of different materials and are easily cracked and separated from each other due to long outdoor exposure time, the silicon rubber ferrule 11 and the end seat can be bonded and fixed by a strong bonding mode of the sealant 12, and simultaneously, the low-voltage electric porcelain insulator can prevent rainwater from permeating, when needing to be installed, the first flange 8 and an equipment body can be fixed by threads, then, the cable is inserted into the threading hole 14 inside the chuck 13 for erection and fixation, the second flange 15 at the lower end of the chuck 13 plays a role in mutual matching with the first flange 8, in addition, the silicone rubber layer 2 mainly plays a role in external protection of the insulating core rod 1 and fixation of the first umbrella skirt 3 and the second umbrella skirt 4, and the first umbrella skirt 3 and the second umbrella skirt 4 play a role in increasing the creepage distance of the insulating sub-group, thereby ensuring the use safety.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low pressure electric porcelain insulator, includes insulating plug (1) and first end holder (7), its characterized in that: a silicon rubber layer (2) is arranged on the outer side of the insulating core rod (1), a first umbrella skirt (3) is arranged on the outer side of the silicon rubber layer (2), a second umbrella skirt (4) is arranged on one side of the first umbrella skirt (3), a first threaded joint (5) is arranged at the upper end of the insulating core rod (1), a second threaded joint (6) is arranged at the lower end of the insulating core rod (1), a first end seat (7) is arranged on the outer side of the first threaded joint (5), a first flange (8) is arranged at the upper end of the first end seat (7), a screw hole (9) is formed in the periphery of the edge of the first flange (8), a second end seat (10) is arranged on the outer side of the second threaded joint (6), a silicon rubber head (11) is arranged on the outer sides of the second end seat (10) and the first end seat (7), and a sealant (12) is arranged at the joint position of the silicon rubber head (11) and the second end seat (10) and the first end seat (7), the lower extreme of second end seat (10) is provided with chuck (13), and the both sides of chuck (13) are provided with through wires hole (14), the lower extreme of second end seat (10) is provided with second flange (15).

2. The low-voltage electric porcelain insulator according to claim 1, wherein: the first end seat (7) and the second end seat (10) are fixedly bonded with the silicon rubber ferrule (11) through the sealant (12), and the silicon rubber ferrule (11) is distributed in a cylindrical shape.

3. The low-voltage electric porcelain insulator according to claim 1, wherein: a first threaded joint (5) and a second threaded joint (6) at the upper end and the lower end of the insulating core rod (1) are in threaded connection with a first end seat (7) and a second end seat (10) respectively, and the first threaded joint (5) and the second threaded joint (6) are identical in structural size.

4. The low-voltage electric porcelain insulator according to claim 1, wherein: the threading holes (14) penetrate through two sides of the chuck (13), and the outer diameter of the second end seat (10) at the upper end of the chuck (13) is the same as that of the first end seat (7).

5. The low-voltage electric porcelain insulator according to claim 1, wherein: the first umbrella skirt (3) and the second umbrella skirt (4) are uniformly distributed along the outer side of the silicon rubber layer (2), and the outer diameter of the first umbrella skirt (3) is larger than that of the second umbrella skirt (4).

6. The low-voltage electric porcelain insulator according to claim 1, wherein: all be provided with screw (9) around the edge of first flange (8) and second flange (15), and the structure size of first flange (8) and second flange (15) is the same.