Overhead line installation head

Abstract

The utility model relates to the technical field of cable laying, in particular to an overhead line installation head which comprises a shell, a porcelain bottle is arranged on the lower surface of the shell, an electric pole is arranged in the porcelain bottle in a penetrating mode, and a wire supporting ring is fixed to the bottom end of the electric pole. According to the overhead line mounting head, the porcelain bottle, the first insulating layer, the second insulating layer and the third insulating layer are arranged in the overhead line mounting head, the porcelain bottle is additionally arranged between the shell and the electric pole, so that the shell is separated from the electric pole, and the first insulating layer, the second insulating layer and the third insulating layer are respectively made of teflon materials; according to the utility model, an iron galvanized part is prevented from being electrified, the safety performance is improved, and the problems that the creepage phenomenon is caused after the weather humidity and the like are changed, the current creeps along the porcelain bottle, the device can be used for a low-voltage cable, and the iron galvanized part is electrified when the high-voltage cable is maintained in the weather with high humidity, so that the service life of the device is prolonged are solved. Therefore, the problem of unsafe rear-end electrification is solved.

Description

Technical Field

[0001] The present application relates to the technical field of cable laying, and in particular to an overhead line installation head. Background Art

[0002] A strong power grid usually refers to the transmission network in the power system, also known as the high-voltage power grid. The power system is a complex network, which includes power grids of different voltage levels. The strong power grid refers to the high-voltage power grid part used to transmit high-power electrical energy. The main goal of the strong power grid is to transmit electricity from power plants to various places where electricity is needed, including industrial, commercial and residential areas. This type of power grid usually operates at high voltage to reduce energy loss during transmission and improve transmission efficiency.

[0003] In the process of strong power grid transmission, relevant accessories and tools are needed. When cables need to be laid, installation heads are needed to suspend the wires. It not only provides support and connection, but also plays a key role in electrical and mechanical protection, which helps to maintain the reliability of the power system. However, in the use of the installation head, since the outer shell of the installation head and the pole are both made of galvanized iron, although the two are directly installed through an insulating porcelain bottle, changes in weather and humidity will cause creepage, and the current will creep along the porcelain bottle. It can be used for low-voltage cables, but for high-voltage cables, when repairs are carried out in humid weather, the galvanized iron parts will be charged, which will make the rear end unsafe. For this reason, an overhead line installation head is proposed to solve the above problem. Utility Model Content

[0004] In response to the shortcomings of the prior art, the present application provides an overhead line installation head, which has the advantage of high safety performance for live working, and solves the problem of creepage caused by changes in weather and humidity. The current will creep along the porcelain bottle. It can be used for low-voltage cables. For high-voltage cables, when repairs are carried out in humid weather, the iron galvanized parts will be electrified, which will lead to the problem of unsafe live operation at the rear end.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: an overhead line installation head, comprising a shell, a porcelain bottle is arranged on the lower surface of the shell, an electric pole is arranged inside the porcelain bottle, a wire support ring is fixed to the bottom end of the electric pole, and a mounting seat is fixed to the upper surface of the shell;

[0006] The outer surface of the shell is coated with a first insulating layer, the outer surface of the pole is coated with a second insulating layer, and the outer surface of the wire supporting ring is coated with a third insulating layer.

[0007] By adopting this technical solution, a porcelain bottle is installed between the outer shell and the pole to achieve separation between the outer shell and the pole. Teflon material is used to make the first insulating layer, the second insulating layer and the third insulating layer respectively to prevent the galvanized iron parts from being electrified, thereby improving safety performance.

[0008] Furthermore, a mounting hole is provided on the front side of the mounting seat, and the number of the mounting seats is two.

[0009] By adopting this technical solution, the entire mounting head is mounted on the electric pole through the mounting hole and the mounting seat.

[0010] Furthermore, the pole and the shell are integrally formed, and the material of the pole and the shell are both iron.

[0011] Furthermore, the height of the pole is smaller than the height of the shell, and the length of the shell is smaller than the length of the porcelain bottle.

[0012] Furthermore, a guide hole through which the power supply pole passes is opened on the upper surface of the porcelain bottle, and the guide hole is in clearance with the power pole.

[0013] By adopting this technical solution, the guide hole plays a supporting and guiding role for the electric pole.

[0014] Furthermore, the first insulating layer, the second insulating layer and the third insulating layer are all Teflon layers.

[0015] By adopting this technical solution, Teflon material is selected to form the first insulating layer, the second insulating layer and the third insulating layer respectively, which can effectively prevent the occurrence of creepage.

[0016] Furthermore, the wire support ring is located below the porcelain bottle.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] The overhead line installation head is provided with a porcelain bottle, a first insulating layer, a second insulating layer and a third insulating layer. A porcelain bottle is added between the outer shell and the pole to achieve separation between the outer shell and the pole. Teflon material is selected to respectively make the first insulating layer, the second insulating layer and the third insulating layer to prevent the galvanized iron parts from being electrified, thereby improving the safety performance and solving the problem of creepage caused by changes in weather and humidity. The current will creep along the porcelain bottle. The invention can be used for cables with low voltage. For cables with high voltage, when maintenance is carried out in humid weather, the galvanized iron parts will be electrified, thereby causing the problem of unsafe electrification at the rear end. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of this application;

[0020] Figure 2 This is a cross-sectional view of the structure of this application;

[0021] Figure 3 This is a cross-sectional view of the structure of the connection between the porcelain bottle and the pole in this application.

[0022] In the figure: 1. outer shell; 2. porcelain bottle; 3. electric pole; 4. conductor support ring; 5. mounting base; 6. first insulating layer; 7. second insulating layer; 8. third insulating layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] See also Figure 1-3 In this embodiment, an overhead line installation head includes a shell 1, a porcelain bottle 2 is arranged on the lower surface of the shell 1, and a pole 3 is arranged inside the porcelain bottle 2. By installing a porcelain bottle 2 between the shell 1 and the pole 3, the shell 1 and the pole 3 are separated, a conductor support ring 4 is fixed at the bottom end of the pole 3, and a mounting seat 5 is fixed on the upper surface of the shell 1;

[0025] The outer surface of the housing 1 is coated with a first insulating layer 6 , the outer surface of the pole 3 is coated with a second insulating layer 7 , and the outer surface of the conductor support ring 4 is coated with a third insulating layer 8 .

[0026] A mounting hole is provided on the front side of the mounting seat 5 , and there are two mounting seats 5 . The entire mounting head is mounted on the electric pole through the mounting hole and the mounting seat 5 .

[0027] The pole 3 and the shell 1 are formed as one piece. The pole 3 and the shell 1 are both made of iron. The outer surface of the iron is galvanized to form a zinc-iron alloy.

[0028] The height of the electric pole 3 is smaller than the height of the shell 1 , and the length of the shell 1 is smaller than the length of the porcelain bottle 2 .

[0029] A guide hole for the power supply rod 3 to pass through is formed on the upper surface of the porcelain bottle 2 , and the guide hole and the power supply rod 3 are clearance-matched.

[0030] The first insulating layer 6, the second insulating layer 7 and the third insulating layer 8 are all Teflon layers. Teflon is a resin material made of polytetrafluoroethylene. Teflon material has good insulation properties and can effectively block the flow of current. When the wire support ring 4 is an overhead wire, the first insulating layer 6, the second insulating layer 7 and the third insulating layer 8 can effectively prevent the current from climbing along the porcelain bottle 2 to the rear end of the outer shell 1, thereby achieving a good insulation effect. The wire support ring 4 is located below the porcelain bottle 2.

[0031] The working principle of the above embodiment is:

[0032] During the use of the mounting head, the wire is first passed through the wire support ring 4 to support the wire, and then the entire mounting head is installed on the electric pole through two mounting seats 5 to suspend the line. Teflon material is selected to form the first insulating layer 6, the second insulating layer 7 and the third insulating layer 8 respectively. Teflon is a resin material made of polytetrafluoroethylene. Teflon material has good insulation properties and can effectively block the flow of current. When the wire support ring 4 suspends the wire, the first insulating layer 6, the second insulating layer 7 and the third insulating layer 8 can effectively prevent the current from climbing along the porcelain bottle 2 to the rear end of the shell 1, and have a good insulation effect, preventing people from touching the shell 1 and causing electric shock, thereby improving safety performance.

Claims

1. An overhead line installation head, comprising a housing (1), characterized in that: A porcelain bottle (2) is arranged on the lower surface of the shell (1), an electric pole (3) is arranged inside the porcelain bottle (2), a wire support ring (4) is fixed to the bottom end of the electric pole (3), and a mounting seat (5) is fixed to the upper surface of the shell (1); The outer surface of the casing (1) is coated with a first insulating layer (6), the outer surface of the pole (3) is coated with a second insulating layer (7), and the outer surface of the conductor support ring (4) is coated with a third insulating layer (8).

2. An overhead line installation head according to claim 1, characterized in that: A mounting hole is provided on the front side of the mounting seat (5), and there are two mounting seats (5).

3. An overhead line installation head according to claim 1, characterized in that: The electric pole (3) and the outer shell (1) are integrally formed, and the material of the electric pole (3) and the material of the outer shell (1) are both iron.

4. An overhead line installation head according to claim 1, characterized in that: The height of the electric pole (3) is smaller than the height of the outer shell (1), and the length of the outer shell (1) is smaller than the length of the porcelain bottle (2).

5. An overhead line installation head according to claim 1, characterized in that: The upper surface of the porcelain bottle (2) is provided with a guide hole through which the power supply rod (3) passes, and the guide hole and the power supply rod (3) are clearance-matched.

6. An overhead line installation head according to claim 1, characterized in that: The first insulating layer (6), the second insulating layer (7) and the third insulating layer (8) are all Teflon layers.

7. An overhead line installation head according to claim 1, characterized in that: The wire support ring (4) is located below the porcelain bottle (2).

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