CN203536166U

CN203536166U - Positioning nail for oil tank of transformer

Info

Publication number: CN203536166U
Application number: CN201320614142.8U
Authority: CN
Inventors: 方子山
Original assignee: CHANGZHOU PENGRUI MACHINE Co Ltd
Current assignee: CHANGZHOU PENGRUI MACHINE Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-04-09
Anticipated expiration: 2023-09-27

Abstract

The utility model relates to a positioning nail for an oil tank of a transformer. The positioning nail for the oil tank of the transformer is used for fixing the upper section and the lower section of the oil tank of the transformer, and comprises a nail head, a connecting section and a nail tail, wherein the nail head, the connecting section and the nail tail are connected in sequence from top to bottom, the nail head is of a cone shape, the taper of the cone ranges from 30 degrees to 40 degrees, the connecting section is of a cylinder structure, a buffer groove is formed in the side face of the cylinder structure, and external threads are formed in the surface of the nail tail. The positioning nail for the oil tank of the transformer has the advantages of being simple in structure, convenient to use and good in positioning effect and fastening effect.

Description

A kind of oil tank of transformer locating pin

Technical field

The utility model relates to a kind of oil tank of transformer locating pin.

Background technology

General high-power transformer fuel tank all adopts bell type tank, bell type tank is comprised of upper oil tank, lower oil tank, upper oil tank is made bell shape, at the bottom of lower oil tank is generally flute profile case or at the bottom of flat case, upper and lower oil tank is bolted together, location and the fastening effect of conventional bolt are poor, can be loosening after of long duration, there is potential safety hazard.

Utility model content

The technical problems to be solved in the utility model is: based on the problems referred to above, provide a kind of oil tank of transformer locating pin.

The utility model solves the technical scheme that its technical problem adopts: a kind of oil tank of transformer locating pin, upper lower oil tank for stationary transformer, comprise the ailhead, linkage section and the nail tail that from top to bottom connect successively, ailhead is the taper shape that is 30～40 ° of taperings, linkage section is the cylindrical structure that side opening is provided with dashpot, and nail tail surface is provided with external screw thread.

Further, the tapering of ailhead is 34 °.

Further, the lower surface of ailhead and the upper surface of linkage section are same.

Further, the rounded corner that the tip edges of ailhead is R5.

The beneficial effects of the utility model are: simple in structure, easy to use, location and fastening effect are good.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further illustrated.

Fig. 1 is structural representation of the present utility model;

Fig. 2 be in Fig. 1 A-A to cutaway view.

Wherein: 1. ailhead, 2. linkage section, 3. nail tail.

Embodiment

By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.

A kind of oil tank of transformer locating pin as shown in Figure 1 and Figure 2, upper lower oil tank for stationary transformer, comprise the ailhead 1, linkage section 2 and the nail tail 3 that from top to bottom connect successively, ailhead 1 is for being the taper shape of 30～40 ° of taperings, linkage section 2 is provided with the cylindrical structure of dashpot for side opening, and nail tail 3 surfaces are provided with external screw thread.

The tapering of ailhead 1 is 34 °, and conical ailhead 1 is easily distortion in installation process, and the dashpot of linkage section 2 can be alleviated the distortion of ailhead 1 effectively, and both are in conjunction with making clamping more firm.

The upper surface of the lower surface of ailhead 1 and linkage section 2 is same, the rounded corner that the tip edges of ailhead 1 is R5.

First nail tail 3 screw threads are installed on to lower oil tank upper surface, then by upper oil tank and ailhead 1 socket, and continue down to pass through linkage section 2, the upper surface seamless combination of the lower surface of supreme oil tank and lower oil tank, installation.

The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to claim scope.

Claims

1. an oil tank of transformer locating pin, upper lower oil tank for stationary transformer, it is characterized in that: comprise the ailhead (1), linkage section (2) and the nail tail (3) that from top to bottom connect successively, ailhead (1) is for being the taper shape of 30～40 ° of taperings, linkage section (2) is provided with the cylindrical structure of dashpot for side opening, and nail tail (3) surface is provided with external screw thread.

2. a kind of oil tank of transformer locating pin according to claim 1, is characterized in that: the tapering of described ailhead (1) is 34 °.

3. a kind of oil tank of transformer locating pin according to claim 1, is characterized in that: the upper surface of the lower surface of described ailhead (1) and linkage section (2) is same.

4. a kind of oil tank of transformer locating pin according to claim 1, is characterized in that: the rounded corner that the tip edges of described ailhead (1) is R5.