CN211991626U

CN211991626U - Mounting hole guard circle welding position round pin

Info

Publication number: CN211991626U
Application number: CN202020564259.XU
Authority: CN
Inventors: 范为超; 葛乃中; 王翠荣
Original assignee: Yancheng Weida Transformer Manufacturing Co ltd
Current assignee: Yancheng Weida Transformer Manufacturing Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-24
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to a welding positioning pin for a mounting hole protection ring, which comprises a body; a plurality of step shafts with the outer diameters increasing from bottom to top are formed outwards at the upper end of the body, and a T-shaped column is further formed outwards at the center of the outer side of the uppermost step shaft; the utility model realizes the quick positioning of the protection ring and ensures the concentricity with the mounting hole, the operation is simple and convenient, and the welding defective rate is greatly reduced; the device is suitable for protection rings with various inner diameters and has wide application range.

Description

Mounting hole guard circle welding position round pin

Technical Field

The utility model relates to a mounting hole guard circle welding locating pin.

Background

The top cap of dry-type transformer adopts threaded connection's mode to fix in the casing upper end, in order to protect the mounting hole on the top cap, generally need be in the top outside welding guard ring of mounting hole, current guard ring can't guarantee when the welding with the concentricity of welding the hole, therefore the welding defective rate is higher, treats further improvement.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a quick location that has realized the guard circle is guaranteed and the concentricity with the mounting hole is provided, easy operation is convenient, has reduced the welding defective rate by a wide margin, and the wide mounting hole guard circle welding position round pin of application scope.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a mounting hole guard ring welding position round pin, includes the body, its characterized in that, the upper end of body is outwards formed with a plurality of steps axles that up external diameter increases in proper order down.

Preferably, the outer center of the uppermost one of the step shafts is further formed with a T-shaped column outwardly.

Compared with the prior art, the utility model has the advantages of: the utility model realizes the quick positioning of the protection ring and ensures the concentricity with the mounting hole, the operation is simple and convenient, and the welding defective rate is greatly reduced; the device is suitable for protection rings with various inner diameters and has wide application range.

Drawings

FIG. 1 is a sectional view of the present invention;

fig. 2 is a partial enlarged structural view of the present invention at a.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in FIGS. 1-2, a welding positioning pin for a mounting hole protection ring comprises a body 3; a plurality of step shafts 31 with the outer diameters increasing from bottom to top are formed outwards at the upper end of the body 3, and a T-shaped column 32 is further formed outwards at the outer center of the uppermost step shaft 31.

When the protective ring is used, the top cover 1 is horizontally placed, one protective ring 2 is placed above one of the screw holes 11 in the top cover 1, the body 3 vertically penetrates through the protective ring 2 downwards and is inserted into the screw hole 11, and one step shaft 31 is inserted into the protective ring 2, so that the protective ring 2 is positioned, and the protective ring 2 and the screw hole 11 are arranged concentrically; then, the outer edge of the lower end of the protective ring 2 can be welded on the top cover 1 by using a welding tool, and after the welding is finished, the T-shaped column 32 is held by hands and pulled upwards, so that the body 3 can be taken out for next use; the outer diameters of the plurality of step shafts 31 are respectively fitted with guard rings having different inner diameters.

The utility model realizes the quick positioning of the protection ring and ensures the concentricity with the mounting hole, the operation is simple and convenient, and the welding defective rate is greatly reduced; the device is suitable for protection rings with various inner diameters and has wide application range.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a mounting hole guard ring welding position round pin, includes the body, its characterized in that, the upper end of body is outwards formed with a plurality of steps axles that up external diameter increases in proper order down.

2. The welding positioning pin for the mounting hole guard ring according to claim 1, wherein a T-shaped column is further formed outwards from the outer center of the uppermost step shaft.