CN211266399U - Anti-disengagement structure for linear spacer of high-voltage transmission line - Google Patents

Abstract

The utility model discloses an anti-disengagement structure of a linear spacer of a high-voltage transmission line, relating to an electric power fitting; the anti-disengagement structure comprises an upper opening-closing type chuck and a lower opening-closing type chuck, wherein the lower end of the upper opening-closing type chuck is an integrally connected linear screw rod, and a first threaded connecting hole is formed in the center of the bottom surface of the linear screw rod; the upper end of the lower open-close type chuck is provided with a connecting column, an upwardly extending hollow sleeve is detachably mounted on the connecting column, an internal thread connecting section is arranged at the upper end opening inside the sleeve, the internal thread connecting section is matched with the linear screw, and the lower end of the linear screw can be screwed into the sleeve from the upper end opening of the sleeve; the anti-disengaging structure still includes an installation at the inside gasket of sleeve pipe, and the gasket is installed and is stretched into the intraductal lower extreme surface of cover at the linear type screw rod, and gasket diameter ratio sleeve pipe inner chamber diameter is slightly littleer, and is bigger than sleeve pipe internal thread connection section, and the gasket can be followed the sleeve pipe lower port and put into the sleeve pipe intraductally, but can not go out from sleeve pipe upper port.

Description

Anti-disengagement structure for linear spacer of high-voltage transmission line

Technical Field

The utility model relates to an electric power fitting, in particular to a high tension transmission line word conductor spacer anti-disengaging structure.

Background

The drainage wire supporting spacer is known as a drainage wire and extension pull rod supporting spacer, and is called a linear spacer because the type is linear; when the upper two drainage wires of the 500kV four-split conductor are introduced, the upper two drainage wires touch the lower two conductors, and the conductors are abraded when swinging; therefore, a wire spacer should be installed between the down conductor and the extension rod.

65 power transmission lines of 500kV administered by the unit, wherein the strain towers account for 1335 bases, about 18528 drainage wire support spacers are provided, and the problem of separation of the support rods of the installed drainage wire support spacers is found in 2018; if the defects are not eliminated in time, the wear of hardware such as the conducting wire, the equalizing ring and the like can be caused until the strand of the conducting wire is broken, and the safe and stable operation of the power transmission line is seriously threatened; because the power failure overhaul period of the 500kV power transmission line is 6 years, and the defect elimination of live working is influenced by factors such as heavy daily operation and maintenance tasks, limited personnel number, insulators and the like, the defect elimination work is difficult to carry out; the defects cannot be eliminated for a long time, and the lead is easy to wear; in order to ensure the safe and stable operation of the power transmission line and reduce the defect incidence rate caused by the spacer supported by the drainage wire, the improvement is needed.

The current drainage wire supports conductor spacer technical essential as follows: the structure of the spacer anti-disengaging structure is shown in fig. 4, the spacer anti-disengaging structure comprises an upper opening-closing type chuck, a lower opening-closing type chuck and a middle linear screw (supporting rod), the specific structure of the spacer anti-disengaging structure is basically the same as that of an authorized bulletin with the number of CN102447239B, and in order to reduce the possibility that the supporting rod (linear screw) of the spacer is disengaged by a drainage wire, the spacer anti-disengaging structure is improved and designed in the research of my unit.

Disclosure of Invention

An object of the utility model is to provide a high tension transmission line word conductor spacer anti-disengaging structure reduces the bracing piece that the drainage line supported the conductor spacer and appears the possibility of breaking off the problem.

The utility model adopts the technical scheme as follows: an anti-disengagement structure of a linear spacer for a high-voltage transmission line comprises an upper opening-closing chuck and a lower opening-closing chuck, wherein the lower end of the upper opening-closing chuck is an integrally connected linear screw rod, and a first threaded connecting hole is formed in the center of the bottom surface of the linear screw rod; the upper end of the lower open-close type chuck is provided with a connecting column, an upwardly extending hollow sleeve is detachably mounted on the connecting column, an internal thread connecting section is arranged at the upper end opening inside the sleeve, the internal thread connecting section is matched with the linear screw, and the lower end of the linear screw can be screwed into the sleeve from the upper end opening of the sleeve; the anti-disengagement structure also comprises a gasket arranged in the sleeve, the gasket is arranged on the surface of the lower end of the linear screw rod extending into the sleeve, the diameter of the gasket is slightly smaller than that of the inner cavity of the sleeve and is larger than that of the internal thread connecting section of the sleeve, and the gasket can be placed into the sleeve from the lower port of the sleeve but cannot be discharged from the upper port of the sleeve; the center of the gasket is of a through hole structure, and the gasket is fixed on the lower end face of the linear screw rod by a second bolt penetrating through the through hole in the center of the gasket, so that the linear screw rod is prevented from being separated from the sleeve.

Preferably, the lower port of the sleeve is sleeved on the connecting column, the lower end of the sleeve and the connecting column are provided with communicated second threaded connecting holes, the second threaded connecting holes penetrate through the sleeve and the connecting column, the first bolt penetrates through the second threaded connecting holes, and the end of the first bolt is screwed and fixed by the nut.

The beneficial effects of the utility model reside in that: the utility model provides a high tension transmission line word conductor spacer anti-disengaging structure reduces the bracing piece that the conductor spacer was supported to the drainage line and the possibility of the problem appears throwing off.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the cut-open internal structure of the present invention.

Fig. 3 is a schematic view of an installation structure of the first bolt.

Fig. 4 is a schematic structural view of a conventional drainage wire support spacer.

In the figure: the clamping device comprises an upper opening-closing type chuck 1, a linear type screw rod 2, a first threaded connecting hole 3, a lower opening-closing type chuck 4, a connecting column 5, a sleeve 6, an internal threaded connecting section 7, a second threaded connecting hole 8, a first bolt 9, a nut 10, a gasket 11 and a second bolt 12.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-3, an anti-disengagement structure for a linear spacer of a high-voltage transmission line comprises an upper opening-closing chuck and a lower opening-closing chuck, wherein the lower end of the upper opening-closing chuck 1 is an integrally connected linear screw 2, and a first threaded connection hole 3 is formed in the center of the bottom surface of the linear screw 2; the upper end of the lower open-close type chuck 4 is provided with a connecting column 5, the connecting column 5 is detachably provided with an upwardly extending hollow sleeve 6, an internal thread connecting section 7 is arranged at the upper end opening inside the sleeve 6, the internal thread connecting section 7 is matched with the linear screw 2, and the lower end of the linear screw 2 can be screwed into the sleeve 6 from the upper end opening of the sleeve 6; the lower port of the sleeve 6 is detachably connected with the connecting column 5, and the preferred scheme is as follows: the lower port of the sleeve 6 is sleeved on the connecting column 5, the lower end of the sleeve 6 and the connecting column 5 are provided with a second threaded connecting hole 8 which is communicated, the second threaded connecting hole 8 penetrates through the sleeve 6 and the connecting column 5, a first bolt 9 penetrates through the second threaded connecting hole 8, and the end of the first bolt 9 is screwed and fixed by a nut 10 (as shown in figure 3); the anti-disengagement structure further comprises a gasket 11 arranged inside the sleeve 6, the gasket 11 is arranged on the lower end surface of the linear screw 2 extending into the sleeve 6, the diameter of the gasket 11 is slightly smaller than that of the inner cavity of the sleeve 6 and is larger than that of the internal thread connecting section 7 of the sleeve 6, and the gasket 11 can be placed into the sleeve 6 from the lower port of the sleeve 6 but cannot go out from the upper port of the sleeve 6; the center of the gasket 11 is provided with a through hole structure, and the gasket 11 is fixed on the lower end surface of the linear screw rod 2 by a second bolt 12 penetrating through the through hole in the center of the gasket 11, so that the linear screw rod 2 is prevented from being separated from the sleeve 6.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that modifications may be made to the above-described embodiments, or equivalent changes and modifications may be made to some of the technical features of the embodiments.

Claims (2)

1. An anti-disengagement structure of a linear spacer of a high-voltage transmission line comprises an upper opening-closing chuck and a lower opening-closing chuck, and is characterized in that the lower end of the upper opening-closing chuck is an integrally connected linear screw, and a first threaded connecting hole is formed in the center of the bottom surface of the linear screw; the upper end of the lower open-close type chuck is provided with a connecting column, an upwardly extending hollow sleeve is detachably mounted on the connecting column, an internal thread connecting section is arranged at the upper end opening inside the sleeve, the internal thread connecting section is matched with the linear screw, and the lower end of the linear screw can be screwed into the sleeve from the upper end opening of the sleeve; the anti-disengagement structure also comprises a gasket arranged in the sleeve, the gasket is arranged on the surface of the lower end of the linear screw rod extending into the sleeve, the diameter of the gasket is slightly smaller than that of the inner cavity of the sleeve and is larger than that of the internal thread connecting section of the sleeve, and the gasket can be placed into the sleeve from the lower port of the sleeve but cannot be discharged from the upper port of the sleeve; the center of the gasket is of a through hole structure, and the gasket is fixed on the lower end face of the linear screw rod by a second bolt penetrating through the through hole in the center of the gasket, so that the linear screw rod is prevented from being separated from the sleeve.

2. The high voltage transmission line spacer anti-disengagement structure according to claim 1, wherein: the lower end opening of the sleeve is sleeved on the connecting column, the lower end of the sleeve and the connecting column are provided with communicated second threaded connecting holes, the second threaded connecting holes penetrate through the sleeve and the connecting column, the first bolt penetrates through the second threaded connecting holes, and the end of the first bolt is screwed and fixed by a nut.

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