CN219605799U

CN219605799U - Bolt assembly for iron tower grounding yoke plate and special spanner

Info

Publication number: CN219605799U
Application number: CN202320935044.8U
Authority: CN
Inventors: 孙树朋; 张子昂; 于国贺
Original assignee: Jilin Juntian Electric Power Engineering Design Co ltd
Current assignee: Jilin Juntian Electric Power Engineering Design Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-08-29
Anticipated expiration: 2033-04-24

Abstract

The bolt component comprises a bolt, a hexagonal nut and a gasket sleeve; the bolt comprises a nut and a screw rod, and the hexagonal nut is sleeved on the screw rod through threads; the gasket sleeve is cylindrical, and a through hole is formed in the bottom surface of the cylinder of the gasket sleeve and used for penetrating through the screw rod; when the iron tower grounding yoke plate and the iron tower are worn to be arranged through the bolts, the hexagonal nuts are arranged in the gasket sleeve, the bottom surface of the cylinder of the gasket sleeve is compressed by the hexagonal nuts, the cylinder body of the gasket sleeve is arranged at intervals with the hexagonal nuts, and the height of the cylinder body of the gasket sleeve is larger than the thickness of the hexagonal nuts. This is novel to change traditional connecting bolt and ordinary plain washer combination into the gasket cover, and the gasket cover has the effect of traditional gasket to surround hexagonal nut again, needs to adopt special spanner to install. The bolts are prevented from being accidentally disassembled or lost due to external factors.

Description

Bolt assembly for iron tower grounding yoke plate and special spanner

Technical Field

The utility model relates to the technical field of bolt connection on an electric iron tower, in particular to a bolt assembly for an iron tower grounding yoke plate and a special spanner.

Background

The iron tower grounding yoke plate is a flat plate-shaped part for connecting the iron tower and the grounding lead, and bolts and nuts are usually required for fixing the iron tower grounding yoke plate to the iron tower. The grounding yoke plate is a connecting device between the iron tower grounding galvanized round steel and the iron tower main material, and the iron tower grounding galvanized round steel cannot be directly welded to the iron tower main material, so that the iron tower grounding yoke plate is required to indirectly connect the iron tower grounding galvanized round steel with the iron tower main material. In the past, common bolts are matched with flat pads, and after an overhead line is put into operation, the bolts are often detached or lost due to external factors, so that the iron tower grounding device cannot meet reliable electrical connection.

Disclosure of Invention

The utility model aims to provide a bolt assembly for an iron tower grounding yoke plate and a special spanner for preventing the bolts on the iron tower grounding yoke plate from being disassembled or lost accidentally.

In order to achieve the above object, the present utility model provides the following technical solutions:

a bolt assembly for an iron tower grounding yoke plate comprises a bolt, a hexagonal nut and a gasket sleeve;

the bolt comprises a nut and a screw rod, and the hexagonal nut is sleeved on the screw rod through threads;

the gasket sleeve is cylindrical, and a through hole is formed in the bottom surface of the cylinder of the gasket sleeve and used for penetrating through the screw rod;

when the gasket is used, the hexagonal nut is arranged in the gasket sleeve, the bottom surface of the cylinder of the gasket sleeve is compressed by the hexagonal nut, the cylinder body of the gasket sleeve is arranged at intervals with the hexagonal nut, and the height of the cylinder body of the gasket sleeve is larger than the thickness of the hexagonal nut.

Further, the cylinder body of the gasket sleeve is provided with a water through hole.

Further, the special spanner comprises a handle and an annular dismantling end, wherein the dismantling end is used for extending into the space between the gasket sleeve and the hexagonal nut;

the cross section of the inner surface of the dismantling end is regular hexagon, and compared with the outer surface of the hexagonal nut, the hexagonal nut of the regular hexagon is outwards offset by 0.75mm to obtain the inner surface of the dismantling end;

the cross section of the outer surface of the dismantling end is circular, and the longitudinal section is arc-shaped with thick middle and thin axial two ends.

In the technical scheme, the bolt assembly and the special spanner have the following beneficial effects:

this is novel to change traditional connecting bolt and ordinary plain washer combination into the gasket cover, and the gasket cover has the effect of traditional gasket to surround hexagonal nut again, needs to adopt special spanner to install. The bolts are prevented from being accidentally disassembled or lost due to external factors. The problem that bolts on the grounding yoke plate of the iron tower are often loosened or lost is solved, and the safety and reliability of the whole-line pole tower grounding device of the power transmission line are maintained.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of a bolt assembly according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a bolt assembly according to the present utility model;

FIG. 3 is a schematic diagram of a cross-sectional front view of a wrench according to the present utility model;

fig. 4 is a schematic top view cross-sectional structure of the wrench provided by the utility model.

Reference numerals illustrate:

the bolt 1, the hexagonal nut 2, the gasket sleeve 3 and the dismantling end 5;

a nut 11 and a screw 12.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

It should be noted that, the terms "above," "one end," "upper," and the like are used herein to indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and similar expressions are merely for the purpose of illustration, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model; furthermore, the terms "a," "an," "the two," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The bolt assembly for the iron tower grounding yoke plate shown in fig. 1-4 comprises a bolt 1, a hexagonal nut 2 and a gasket sleeve 3.

The bolt 1 comprises a nut 11 and a screw rod 12, and the hexagonal nut 2 is sleeved on the screw rod 12 through threads.

The gasket sleeve 3 is used for replacing a traditional gasket, the gasket sleeve 3 is in a cylindrical shape with a bottom, and a through hole is formed in the bottom surface of the cylinder of the gasket sleeve 3 and used for penetrating the screw 12.

When the novel gasket is used, the hexagonal nut 2 is arranged in the gasket sleeve 3, the bottom surface of the gasket sleeve 3 is compressed by the hexagonal nut 2, the barrel body of the gasket sleeve 3 is arranged at intervals with the hexagonal nut 2, and the barrel body of the gasket sleeve 3 is thicker than the hexagonal nut 2. The connected iron tower and the iron tower grounding connecting plate penetrate through the screw rod 12, and one end of the iron tower and the iron tower grounding connecting plate is provided with the screw cap 11. The other end is a gasket sleeve 3 and a hexagonal nut 2, wherein the hexagonal nut 2 is positioned outside the two connected pieces.

Preferably, the through hole is arranged on the cylinder body of the gasket sleeve 3, and rainwater in the gasket sleeve 3 can flow out from the through hole, so that the gasket sleeve 3 is prevented from being soaked in water for a long time.

Preferably, the wrench comprises a handle and an annular removal end 5, the annular removal end 5 being intended to be placed in the space between the barrel of the spacer sleeve 3 and the hexagonal nut 2.

The inner surface of the removing end 5 has a regular hexagonal cross section, and the hexagonal nut 2 of the regular hexagonal shape is offset radially outward by 0.75mm as compared with the outer surface of the hexagonal nut 2, which is the inner surface of the removing end 5. I.e. the regular hexagon of the coaxial removal end 5 is larger than the regular hexagon profile of the hexagonal nut 2 and the distance from the side of the regular hexagon of the removal end 5 to the corresponding side of the regular hexagon of the hexagonal nut 2 is 0.75mm. I.e. the distance between the two sides AB and CD of the regular hexagon in fig. 4 is 1.5mm greater than the distance between the two corresponding sides of the hexagonal nut. The distance from the regular hexagon edge of the dismantling end 5 to the regular hexagon edge of the hexagonal nut 2 is too large, the wrench cannot unscrew the hexagonal nut 2, and the wrench cannot be sleeved on the hexagonal nut when the distance is too small. Through repeated experiments, the distance is 0.75mm, so that the effects of unscrewing the hexagonal nut 2 and sleeving the hexagonal nut can be simultaneously met, and the processing is convenient.

The cross section of the outer surface of the dismantling end 5 is circular, the longitudinal section is arc-shaped with thick middle and thin axial two ends, and the thick middle part is required to extend into the interval between the cylinder body of the gasket sleeve 3 and the hexagonal nut 2. The thin end of the sleeve extends into the gasket sleeve 3, so that the dismantling end can be conveniently and rapidly inserted into the gasket sleeve 3. In addition, the dismantling end and the gasket sleeve are contacted through the arc-shaped surface, even if the dismantling end is not coaxial with the hexagonal nut and the gasket sleeve, the dismantling end is contacted with the gasket sleeve more smoothly.

The distance (EF) of the apex of the regular hexagon of the removal end 5 from the outer surface edge of the removal end 5 is preferably 3mm smaller than the distance of the apex of the regular hexagon of the hexagonal nut of the bolt assembly from the barrel of the spacer sleeve 3.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The bolt assembly for the iron tower grounding yoke plate is characterized by comprising a bolt (1), a hexagonal nut (2) and a gasket sleeve (3);

the bolt (1) comprises a nut (11) and a screw (12), and the hexagonal nut (2) is sleeved on the screw (12) through threads;

the gasket sleeve (3) is cylindrical, and a through hole is formed in the bottom surface of the cylinder of the gasket sleeve (3) and used for penetrating through the screw rod (12);

when the iron tower grounding connecting plate is used, the bolts (1) penetrate through the iron tower grounding connecting plate and the iron tower; the novel gasket is characterized in that the hexagonal nut (2) is arranged in the gasket sleeve (3), the bottom surface of the gasket sleeve (3) is pressed by the hexagonal nut (2), the cylinder body of the gasket sleeve (3) is arranged at intervals with the hexagonal nut (2), and the height of the cylinder body of the gasket sleeve (3) is larger than the thickness of the hexagonal nut (2).

2. The bolt assembly for the iron tower grounding yoke plate according to claim 1, wherein the barrel body of the gasket sleeve (3) is provided with a through hole.

3. A special wrench for removing a bolt assembly according to any one of claims 1-2, comprising a handle and an annular removal end (5) for extending between the spacer sleeve (3) and the hexagonal nut (2);

the cross section of the inner surface of the dismantling end (5) is a regular hexagon, and compared with the outer surface of the hexagonal nut (2), the hexagonal nut (2) of the regular hexagon is outwards offset by 0.75mm to obtain the inner surface of the dismantling end (5);

the cross section of the outer surface of the dismantling end (5) is circular, and the longitudinal section is arc-shaped with thick middle and thin axial two ends.