CN216781695U

CN216781695U - Special tool for dismounting sunken bolt in pit

Info

Publication number: CN216781695U
Application number: CN202122890087.2U
Authority: CN
Inventors: 王军; 陈国强; 彭东辉; 同彪
Original assignee: Ningbo Iron and Steel Co Ltd
Current assignee: Ningbo Iron and Steel Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-06-21
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a special tool for dismounting a pit cave bolt, which comprises a steel cylinder body; the top of the upper hexagon is arranged at the upper end of the steel column body; the bottom table part is arranged at the lower end of the steel column body, and a lower hexagonal inner hole is formed in the bottom of the bottom table part. The utility model has simple structure, can be put into the pot hole to fasten the bolt and solves the technical problem which can not be solved in the prior art.

Description

Special tool for dismounting sunken bolt in pit

Technical Field

The utility model relates to the field of equipment tools, in particular to a special tool for dismounting a pit sunken bolt.

Background

In the application process of some large-scale equipment, some bolts are located in a narrow and small space with a closed recess, tools such as a common hydraulic wrench and the like cannot enter the hole to be fastened, and even if the bolts can be placed in the hole, the bolts cannot be fastened. In addition, due to the vibration of the equipment in the operation process, the bolt needs to be periodically checked and fastened, otherwise, serious equipment hidden danger is caused once the bolt loosens, and therefore a special tool is needed to conveniently fasten the bolt in the sunken narrow space.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special tool for dismounting a sunk bolt in a pit, which has a simple structure, can be placed into the pit to fasten the bolt, and solves the technical problem which cannot be solved in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a cave invagination bolt dismouting specialized tool includes:

a steel cylinder;

the top of the upper hexagon is arranged at the upper end of the steel column body;

the bottom table part is arranged at the lower end of the steel column body, and a lower hexagonal inner hole is formed in the bottom of the bottom table part.

Preferably, the steel column body is internally provided with a clearance inner hole communicated with the lower hexagonal inner hole.

Preferably, the diameter of the opposite side of the inner hole of the lower hexagon is larger than that of the top of the upper hexagon.

Preferably, the height of the top of the upper hexagon is not less than 60 mm.

Preferably, the sum of the depths of the clearance inner hole and the lower hexagonal inner hole is not less than 180 mm.

Compared with the prior art, the utility model has the beneficial effects that:

the structure is simple, the steel column body is arranged and can be inserted into the pot hole, the lower end of the steel column body is provided with a lower hexagonal inner hole matched with the bolt in the pot hole, and the upper end of the steel column body is provided with an upper hexagonal top matched with various tools, so that the external tools can easily screw the bolt in the pot hole.

Drawings

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a bottom view of the present invention;

fig. 4 is a structural view of a use state of the present invention.

Reference numerals:

1. the steel column, 2, the base portion, 3, go up hexagon top, 4, keep away the hole, 5, lower hexagon hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, in order to solve the technical problem that the existing bolt is difficult to be inserted into a pit hole for dismounting, the utility model provides the following technical scheme: a cave invagination bolt dismouting specialized tool includes:

the steel column body 1 is made of 42CrMo die steel;

go up hexagon top 3, set up in the upper end of steel column body 1 for cooperate with outside instrument, wherein outside instrument can be for hydraulic wrench, strike spanner, steel rod etc. need set up the lateral through hole on last hexagon top 3 when using the steel rod.

Base portion 2 sets up the lower extreme at steel cylinder 1, base portion 2's bottom be provided with down hexagon hole 5, base portion 2's width can be greater than steel cylinder 1's width, simultaneously, lower hexagon hole 5's opposite side diameter be greater than the opposite side diameter at last hexagon top 3, because the upper end of bolt often can be longer, so steel cylinder 1's inside be provided with the clearance hole 4 that is linked together down hexagon hole 5, convenient twisting of bolt moves.

In this embodiment, the height of the upper hexagonal top 3 is not less than 60mm in order to accommodate more various external tools. Meanwhile, in order to adapt to bolts in pot holes in more situations, the sum of the depths of the clearance inner hole 4 and the lower hexagonal inner hole 5 is not less than 180 mm.

The novel steel column type hole drilling machine is simple in structure, provided with the steel column body and capable of penetrating into a hole, the lower end of the steel column body is provided with the lower hexagonal inner hole matched with a bolt in the hole, and the upper end of the steel column body is provided with the upper hexagonal top matched with various tools, so that the bolt in the hole can be easily screwed by external tools.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. The utility model provides a cave invagination bolt dismouting specialized tool which characterized in that includes:

a steel cylinder (1);

the upper hexagonal top (3) is arranged at the upper end of the steel column body (1);

the base platform part (2) is arranged at the lower end of the steel column body (1), and a lower hexagonal inner hole (5) is formed in the bottom of the base platform part (2).

2. The special tool for disassembling and assembling the pot hole sunken bolt according to claim 1, wherein: and a clearance-avoiding inner hole (4) communicated with the lower hexagonal inner hole (5) is formed in the steel column body (1).

3. The special tool for disassembling and assembling the pot hole sunken bolt according to claim 1, wherein: the diameter of the opposite side of the lower hexagonal inner hole (5) is larger than that of the opposite side of the upper hexagonal top (3).

4. The special tool for disassembling and assembling the pot hole sunken bolt according to claim 1, wherein: the height of the upper hexagonal top (3) is not less than 60 mm.

5. The special tool for disassembling and assembling the pot hole sunken bolt according to claim 2, wherein: the sum of the depths of the clearance inner hole (4) and the lower hexagonal inner hole (5) is not less than 180 mm.