Patent Application
20220085590
The present invention relates to the technology field of overhead distribution system, and more particularly to a clamp-type line post insulator for receiving and holding securely electrical conductors.
Insulator is an electrically insulating component arranged between an electrical cable and a telephone pole, and is for use in increasing a distance between the electrical cable and a ground so as to ensure safety security. Moreover, the insulator is also used for supporting and hanging the electrical cable. Therefore, the insulator is required to have sufficient insulation strength and high corrosion resistance.
Materials for making the insulator have known being divided into natural organic, inorganic and combinations. Moreover, according to structure features, the commercial insulators are divided into pin insulator, column type, suspension insulator, porcelain insulator (also called butterfly insulator), rod porcelain insulator, pull porcelain insulator, porcelain crossarm insulator, and discharge clamp porcelain insulator. It is understood that, the insulator is easily to be deposited with a severe contamination of fine particles, moisture, dust, and salt on the outer surface thereof because of being disposed outdoors, and the severe contamination induced leakage currents and flashover failure.
Real experiences have indicated that the flashover failure would damage the surface of the insulator, thereby reducing the insulation strength of the insulator. For above reasons, utility workers are assigned to clean and replace the insulator regularly to ensure that the electrical cable and the insulator function normally. However, conventional insulators are fixed on the crossarm of the telephone pole by tying; wherein depending on the voltage and the type of the insulators, the tie methods include side ties, top ties, spool ties. It is extrapolated that, the utility workers have to manually tie the electrical cable on the insulator and memorize multiple methods and procedures for tying the electrical cable, such that the utility workers spend a lot of time for tying the electrical cable, which will increase the human error rate and maintenance time.
From above descriptions, it is clear that, how to design and provide an insulator which is easy to clean, fix and maintain has now become the most important issue. In view of that, inventors of the present application have made great efforts to make inventive research and eventually provided a clamp-type line post insulator for applying in overhead distribution system.
The primary objective of the present invention is to provide a clamp-type line post insulator for applying in overhead distribution. The clamp-type line post insulator comprises a body, a cable clamp, an insulation unit and an adjustable fixing unit. According to particular design of the present invention, a pivoting end of the cable clamp is pivotally connected to a pivot member that is formed on the fixing base, and an engaging end of the cable clamp is arranged to correspondingly faced to an engagement groove of the fixing base. Particularly, after horizontally placing an electrical cable in the cable groove, the cable clamp rotates about the pivot member, thereby inserting the engaging end of the cable clamp into the engagement groove to engage with it. By such arrangements, rotating the adjustable fixing unit to move downwardly, such that the electrical cable is pressed and fixed in the cable groove. Moreover, the clamp-type line post insulator comprises a lid and a fixing member, after the pivoting end of the cable clamp pivotally connecting with the pivot member, the lid engages with the pivot member. And one end of the fixing member protrudes out of a hole of the lid and a hole of the pivot member to fix the pivoting end of the cable clamp on the fixing base, so as to improve the structural strength between the cable clamp and the fixing base.
In order to achieve the primary objective of the present invention, the inventor of the present invention provides an embodiment for the clamp-type line post insulator, is for application in an overhead distribution system, and comprise:
In the aforesaid embodiment of the clamp-type line post insulator, the adjustable fixing unit comprises:
In the aforesaid embodiment of the clamp-type line post insulator, wherein the insulation unit comprises a plurality of disc-shaped insulators that are located below the fixing base, and the plurality of disc-shaped insulators are partially disposed in a plurality of ring grooves of the body, respectively.
The invention as well as a preferred mode of use and advantages thereof will be best understood by referring to the following detailed description of an illustrative embodiment in conjunction with the accompanying drawings, wherein:
To more clearly describe a clamp-type line post insulator for applying in an overhead distribution system disclosed by the present invention, embodiments of the present invention will be described in detail with reference to the attached drawings hereinafter.
The clamp-type line post insulator 1 comprises a lid 16 and a fixing member 17. Wherein after the pivoting end 131 is pivotally connected to the pivot member 121, the lid 16 wraps and engages with the pivot member 121, and the lid 16 is located above the pivoting end 131 of the cable clamp 13. Moreover, the fixing member 17 passes through the lid 16. One end of the fixing member 17 protrudes out of a hole 161 of the lid 16 and a hole 1211 of the pivot member 121 to fix the pivoting end 131 of the cable clamp 13 on the fixing base 12. On the other hand, the clamp-type line post insulator 1 comprises a connection rope that is connected between the body 11, the lid 16 and/or the fixing member 17, so as to prevent the lid 16 and the fixing member 17 from falling and losing. From
In this embodiment, the receiving recess 10 is a female thread, and is connected to a stud of the crossarm pin 2. However, the receiving recess 10 and the crossarm pin 2 should not be limited by the above example, and are selected from any part of the group consisting of: crew holes, rivet hole, magnet screw. On the other hand, the grip portion 152 has a through hole 1521 that is used to tie a fixing rope, in order to prevent the clamp-type line post insulator 1 from falling during the using of the clamp-type line post insulator 1.
Therefore, through above descriptions, the clamp-type line post insulator proposed by the present invention have been introduced completely and clearly; in summary, the present invention includes the advantages of:
(1) The clamp-type line post insulator 1 comprises a body 11, a cable clamp 13, an insulation unit 14 and an adjustable fixing unit 15. A pivoting end 131 of the cable clamp 13 is pivotally connected to a pivot member 121 that is formed on the fixing base 12, and an engaging end 132 of the cable clamp 13 is arranged to correspondingly faced to an engagement groove 122 of the fixing base 12. By such arrangements, rotating the adjustable fixing unit 15 to move downwardly, such that the electrical cable is pressed and fixed in the cable groove 111.
(2) On the other hand, the clamp-type line post insulator 1 comprises a lid 16 and a fixing member 17, after the pivoting end 131 of the cable clamp 13 pivotally connecting with the pivot member 121, the lid 16 engages with the pivot member 121. And one end of the fixing member 17 protrudes out of a hole 161 of the lid 16 and a hole 1211 of the pivot member 121 to fix the pivoting end 131 of the cable clamp 13 on the fixing base 12, so as to improve the structural strength between the cable clamp 13 and the fixing base 12. Moreover, the insulation unit 14 comprises a plurality of disc-shaped insulators 141. The plurality of disc-shaped insulators 141 are partially and respectively placed in a plurality of ring grooves 121 of the body 11, thereby increasing a durability of the insulation unit 14.
The above description is made on embodiments of the present invention. However, the embodiments are not intended to limit scope of the present invention, and all equivalent implementations or alterations within the spirit of the present invention still fall within the scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 109131774 | Sep 2020 | TW | national |
