阅读说明：本技术 一种垂直双挂点双联的耐张绝缘子串挂设装置 (Perpendicular two strain insulator string that hang some pair and hang and establish device ) 是由 刘平平 岳灵平 方杰 殷志敏 俞强 缪正 寿峰 丁瀚 张健 王一波 俞伟勇 季 于 2020-01-21 设计创作，主要内容包括：本发明涉及电力金具,尤其是涉及一种垂直双挂点双联的耐张绝缘子串挂设装置。一种垂直双挂点双联的耐张绝缘子串挂设装置,包括横担、第一绝缘子串和第二绝缘子串,横担上固定有连接板,第一绝缘子串和第二绝缘子串的一端固定在连接板上,第一绝缘子串和第二绝缘子串的另一端与导线固定连接,连接板上设置有辅助装置。本发明能够采用双挂点方式将绝缘子串安装在杆塔横担的挂点处,稳定性好,安全性高。(The invention relates to an electric power fitting, in particular to a strain insulator string hanging device with vertical double hanging points and double connection. The utility model provides a strain insulator string of perpendicular two string point pairs is hung and is established device, includes cross arm, first insulator string and second insulator string, is fixed with the connecting plate on the cross arm, and the one end of first insulator string and second insulator string is fixed on the connecting plate, and the other end and the wire fixed connection of first insulator string and second insulator string are provided with auxiliary device on the connecting plate. The insulator string can be arranged at the hanging point of the cross arm of the tower in a double-hanging-point mode, and the insulator string is good in stability and high in safety.)

1. The utility model provides a perpendicular two strain insulator string that hang some pair and establish device, includes cross arm, first insulator string and second insulator string, its characterized in that, the cross arm on be fixed with the connecting plate, the transversal L shape of personally submitting of connecting plate, first insulator string and second insulator string's one end fix on the connecting plate, the other end and the wire fixed connection of first insulator string and second insulator string, the connecting plate on be provided with auxiliary device, auxiliary device including fixing the support casing on the connecting plate, the support casing in be provided with the cavity, the left and right sides symmetric distribution of cavity have with the lateral wall sliding connection's of cavity bracing piece, the one end of bracing piece run through and be provided with the support hook that is used for first insulator string or second insulator string to support behind the support casing, the one end of bracing piece of keeping away from the support hook be provided with the slider, the slider on be provided with the translation pole, the support casing in correspond the translation pole and be provided with horizontal cavity, the translation piston of keeping away from the slider be provided with on the translation pole with the translation piston of horizontal cavity, the vertical spacing pole is connected with on the piston is used for the vertical spacing pole.

2. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 1, wherein the first insulator string and the second insulator string are connected with a lead through a connecting plate.

3. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 1, wherein the support housing is fixed on the connecting plate by fastening bolts.

4. The device for hanging the vertical double-hanging-point duplex strain insulator string as claimed in claim 1, 2 or 3, wherein the connecting plate is fixed on the cross arm by a positioning bolt.

5. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 1, 2 or 3, wherein a buffer spring is arranged between the sliding block and the corresponding limiting rod.

6. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 1, 2 or 3, wherein one end of the translation piston, which is far away from the translation rod, is provided with a guard rod for limiting the maximum displacement of the translation piston.

7. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 1, 2 or 3, wherein a limiting block is arranged at one end of the limiting rod away from the limiting piston.

8. The vertical double hanging point duplex strain insulator string hanging device as claimed in claim 7, wherein the limiting block is made of rubber material.

Technical Field

The invention relates to an electric power fitting, in particular to a strain insulator string hanging device with vertical double hanging points and double connection.

Background

At present, most of tension towers with double split conductors are usually hung on a cross arm of a tower by a single hanging point, and two insulator strings are horizontally arranged to connect the conductors.

The existing single hanging point horizontal duplex tension insulator string connecting method has potential safety hazards. Once a problem occurs in a single hanging point, the wire in the first gear cannot be pulled, so that the wire and the insulator string fall into an important three-span section below, serious influence is caused, and safety is low.

"triple span" definition: refers to an overhead transmission line section spanning a high-speed railway, a highway and an important transmission channel.

For example, Chinese patent publication numbers are: CN205723014U, in a single string of some strain insulator-string of 2016 bulletin 11 month 23, its technical scheme main points are including U type link, extension ring, U type link, yoke plate, Z type string knot, bulb link, insulator cluster group, socket string knot, yoke plate, Z type link plate, parallel link plate, wedge strain clamp, the yoke plate is hung with the Z type and is buckled through bolted connection, the Z type is hung the knot and is equipped with the limit structure with the yoke plate butt, the socket is hung the knot and is passed through bolted connection with the yoke plate, the socket is hung the knot and is equipped with the limit structure with the yoke plate butt. Under each limit structure's effect, the Z type is hung to detain and link plate and bowl head and all be fixed connection with the link plate, cooperation insulator string group forms a stable rectangular structure, thereby avoid insulator string to produce the small-angle torsion under being unfavorable for the operating mode, be favorable to maintaining the joint strength of plug and tip gold utensil, but single string point in case the problem appears, wire in the grade will unable to be withheld, thereby can lead to the wire to drop in the important three-span district section of below together with insulator string, will cause serious influence, the security is low.

Disclosure of Invention

The invention mainly aims to solve the problems that once a problem occurs in the existing single hanging point, the wire in the first gear cannot be pulled, so that the wire and an insulator string fall into an important three-span section below, serious influence is caused, and safety is low.

The device comprises a cross arm, a first insulator string and a second insulator string, wherein a connecting plate is fixed on the cross arm, the cross section of the connecting plate is L-shaped, one ends of the first insulator string and the second insulator string are fixed on the connecting plate, the other ends of the first insulator string and the second insulator string are fixedly connected with a lead, an auxiliary device is arranged on the connecting plate, the auxiliary device comprises a supporting shell fixed on the connecting plate, a hollow cavity is arranged in the supporting shell, supporting rods in sliding connection with the side wall of the hollow cavity are symmetrically distributed on the left side and the right side of the hollow cavity, a supporting hook for supporting the first insulator string or the second insulator string is arranged after one end of the supporting rod penetrates through the supporting shell, a sliding block is arranged at one end of the supporting rod far from the supporting hook, the sliding rod is arranged on the sliding rod, the horizontal cavity is arranged corresponding to the translation rod, one end of the supporting rod far from the supporting rod is arranged on the supporting rod, the sliding rod is connected with a sliding rod, the supporting rod, the sliding rod is arranged on the supporting rod, the supporting rod is arranged horizontally, the supporting rod is more, the sliding rod is arranged on the supporting rod, the supporting rod is arranged, the supporting rod is more the supporting rod, the sliding rod, the supporting rod, the sliding rod is arranged, the sliding rod is more the sliding rod, the sliding rod is arranged, the sliding rod is more the sliding rod, the sliding rod is arranged in the sliding rod, the supporting rod is more the sliding rod, the sliding rod is arranged in the sliding rod, the supporting rod, the sliding rod, the supporting rod is more the supporting rod, the sliding rod is more the sliding rod, the sliding rod is arranged in the sliding rod, the sliding rod is more the sliding rod, the sliding rod is more the sliding rod is arranged in the sliding rod, the sliding rod is more the sliding rod, the sliding rod is more the sliding rod is arranged in the sliding rod, the sliding rod is more the sliding rod, the sliding.

Preferably, the first insulator string and the second insulator string are connected with the lead through a connecting plate. The first insulator string and the second insulator string are connected with the lead through the connecting plate, so that the installation is simple and the connection is firm.

Preferably, the support housing is fixed to the connecting plate by fastening bolts. The supporting shell is fixed on the connecting plate through a fastening bolt, and the connection is very stable.

Preferably, the connecting plate is fixed on the cross arm through a positioning bolt. The connecting plate passes through positioning bolt to be fixed on the cross arm, and the installation is convenient and firm.

Preferably, a buffer spring is arranged between the sliding block and the corresponding limiting rod. And a buffer spring is arranged between the sliding block and the corresponding limiting rod, and the buffer spring can buffer the energy of part of the insulator string when the insulator string falls off, so that the stability of the whole device is improved.

Preferably, one end of the translation piston, which is far away from the translation rod, is provided with a guard rod for limiting the maximum displacement of the translation piston. One end of the translation piston, which is far away from the translation rod, is provided with a protection rod for limiting the maximum displacement of the translation piston, and the maximum displacement of the translation piston is limited by the protection rod, so that the air pressure in the horizontal cavity cannot explode due to overhigh pressure, and the safety is improved.

Preferably, one end of the limiting rod, which is far away from the limiting piston, is provided with a limiting block. The one end of gag lever post that keeps away from spacing piston is provided with the stopper, and the area of stopper should be greater than the area of gag lever post to the frictional force to the bracing piece when having increased the gag lever post and supporting on the bracing piece.

Preferably, the limiting block is made of rubber materials. The stopper is made by rubber materials, and rubber materials has elasticity, can warp, can increase when receiving pressure and the bracing piece between frictional force to improve stability.

Therefore, the strain insulator string hanging device with the vertical double hanging points and the double connection has the following advantages: the insulator string mounting device is simple in structure, convenient to process and connect, firm to mount, good in stability and high in safety, and the insulator string can be mounted at the hanging point of the cross arm of the tower in a double-hanging-point mode.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of the auxiliary device of the present invention.

Illustration of the drawings: 1-cross arm, 2-fastening bolt, 3-connecting plate, 4-positioning bolt, 5-first insulator string, 6-second insulator string, 7-auxiliary device, 8-supporting hook body, 9-connecting plate, 10-lead, 11-supporting rod, 12-supporting shell, 13-hollow cavity, 14-translation rod, 15-translation piston, 16-horizontal cavity, 17-guard rod, 18-limiting piston, 19-vertical cavity, 20-limiting rod, 21-limiting block, 22-buffer spring and 23-sliding block.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.