CN219075550U

CN219075550U - Dismounting tool for rusted large outer hexagonal nut on construction site

Info

Publication number: CN219075550U
Application number: CN202223189561.XU
Authority: CN
Inventors: 张园园; 刘家旭; 慈国强
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-26
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to a tool, in particular to a dismounting tool for a rusty large outer hexagonal nut on a construction site. The method comprises the steps of disassembling a ring plate, wherein one end of the ring plate is provided with an arrow-shaped notch connecting structure, and four sides of the notch connecting structure are equal in length and are matched with four surfaces of a rusted outer hexagonal nut; the two sides of the open end of the notch structure are symmetrically and fixedly connected with a left connecting plate and a right connecting plate respectively, a first handle nut and a second handle nut are fixedly connected between the left connecting plate and the right connecting plate in sequence, and the axes of the first handle nut and the second handle nut are overlapped with the center line of the notch structure; the first handle nut and the second handle nut rotate the spiral ejector rod, the inner end of the spiral ejector rod is propped against the rusted large outer hexagon nut, and the outer end of the spiral ejector rod is fixedly connected with a rotary handle vertical to the spiral ejector rod. The utility model has simple structure, convenient construction site manufacture, small occupied space, split carrying and convenient operation, and improves the dismounting efficiency of the rusty large outer hexagon nut.

Description

Dismounting tool for rusted large outer hexagonal nut on construction site

Technical Field

The utility model relates to a tool, in particular to a dismounting tool for a rusty large outer hexagonal nut on a construction site.

Background

In the upgrading and reconstruction project of the steel mill, the large outer hexagon bolts are often required to be disassembled, but some nuts are easy to rust because of long time or long-term exposure to air, and the external dimensions of the large outer hexagon nuts become smaller after rust. The pipelines and parts of the steel plant equipment are numerous, and sometimes other parts are arranged around parts such as hydraulic pipelines, valves, oil separators and the like, so that the parts to be disassembled are in a narrow space, namely a limited space. The spanner is a common installation and extracting tool, and common spanner has: solid wrench (open end wrench), box spanner (glasses spanner) and adjustable spanner (adjustable spanner), solid wrench are fixed size's opening, and application bolt scope is limited, and box spanner's size is fixed, and big outer hexagon bolt rust back very easily smooth square, and the adjustable spanner can pass through the head adjustment size, but heavy, can not use when the space is limited.

The utility model of China with the authorized bulletin number of CN208323191U discloses an anti-skid wrench, wherein a replaceable hexagonal movable core is arranged in the head part of the wrench, the replaceable hexagonal movable core is of a fixed size, and the head part of the wrench and the replaceable hexagonal movable core occupy large space and cannot be used for limited space and disassembly of a rusty large outer hexagonal nut.

Disclosure of Invention

The utility model aims to solve the technical problems, thereby providing a dismounting tool for the rusted large outer hexagonal nut on a construction site, and improving the dismounting efficiency of the rusted large outer hexagonal nut.

The utility model solves the technical problems and adopts the following technical scheme:

the dismounting tool for the rusty large outer hexagonal nut on the construction site comprises a dismounting annular plate, wherein the dismounting annular plate is sleeved on the rusty large outer hexagonal nut, one end of the dismounting annular plate is provided with an arrow-shaped notch structure, and four sides of the notch structure are equal in length and coincide with four surfaces of the rusty large outer hexagonal nut; the two sides of the open end of the notch structure are respectively and symmetrically fixedly connected with a left connecting plate and a right connecting plate, a first handle nut and a second handle nut are sequentially fixedly connected between the left connecting plate and the right connecting plate, and the axes of the first handle nut and the second handle nut are overlapped with the central line of the notch structure; the first handle nut and the second handle nut rotate the spiral ejector rod, the inner end of the spiral ejector rod is propped against the rusted large outer hexagonal nut, and the outer end of the spiral ejector rod is fixedly connected with a rotary handle perpendicular to the spiral ejector rod.

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

simple structure, the construction site preparation of being convenient for, occupation space is little, but components of a whole that can function independently carry, convenient operation improve the dismantlement efficiency of rust big outer hexagon nut.

Further, the optimization scheme of the utility model is as follows:

and one end of the detachable annular plate, which is far away from the notch structure, is arc-shaped.

The spiral ejector rod is screwed with the locking nut.

The detachable annular plate is of a double-layer structure.

The inner end of the spiral ejector rod is sleeved with a sleeve, and the outer end of the sleeve is fixedly connected with a V-shaped top plate.

The inner end of the spiral ejector rod is provided with an axial blind hole, a connecting rod is inserted in the blind hole, and the outer end of the connecting rod is fixedly connected with a V-shaped top plate.

Drawings

FIG. 1 is a front view of a first embodiment of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a top view of a second embodiment of the present utility model.

In the figure: disassembling the annular plate 1; notch structure 1-1; a left connecting plate 2; a right connecting plate 3; a first handle nut 4; a second handle nut 5; a spiral ejector rod 6; a rotary handle 7; a sleeve 8; a top plate 9; a lock nut 10.

Detailed Description

The utility model is further described in detail below with reference to the drawings and examples.

Example 1

Referring to fig. 1-3, the present embodiment is a dismounting tool for a rusty large outer hexagonal nut on a construction site, which is mainly composed of a dismounting ring plate 1, a left connecting plate 2, a right connecting plate 3, a first handle nut 4, a second handle nut 5 and a screw ejector rod 6. The detachable ring plate 1 is rectangular, one end of the detachable ring plate is provided with a notch structure 1-1, the notch structure 1-1 is in an arrow shape, four sides of the notch structure 1-1 are equal in length and are matched with four surfaces of the rusty large outer hexagonal nut, one end, far away from the notch structure 1-1, of the detachable ring plate 1 is in a circular arc shape, and the detachable ring plate 1 is in a double-layer structure, so that the strength of the detachable ring plate is improved.

Rectangular left connecting plates 2 and rectangular right connecting plates 3 are symmetrically welded on two sides of the open end of the notch structure 1-1 respectively, and the plate surfaces of the two connecting plates are perpendicular to the detachable annular plate 1. The first handle nut 4 and the second handle nut 5 are welded between the left connecting plate 2 and the right connecting plate 3 from inside to outside in sequence, and the axes of the two handle nuts are concentric and coincide with the central line of the notch structure 1-1.

The spiral ejector rod 6 is rotated in the first handle nut 4 and the second handle nut 5, the inner end of the spiral ejector rod 6 is propped against the rusted large outer hexagon nut to play a role in positioning and limiting, and the outer end of the spiral ejector rod 6 is welded with the rotating handle 7 perpendicular to the spiral ejector rod 6. The spiral ejector rod 6 at the outer side of the second handle nut 5 is screwed with the locking nut 10, and the locking nut 10 prevents the loosening when the rotary handle 7 is tightly propped.

The field manufacturing and using process of the embodiment is as follows: the actual external dimensions of the rust large outer hexagonal nut are measured, according to which the notch structure 1-1 is cut on the disassembly ring plate 1, then the left and

right connection plates

2 and 3 are welded, and the first and

second handle nuts

4 and 5 are welded between the left and

right connection plates

2 and 3. When the screw mandrel 6 is used, the screw mandrel 6 is screwed into the first handle nut 4 and the second handle nut 5, then the disassembly annular plate 1 is sleeved on the rusty large outer hexagonal nut which needs to be disassembled on site, the screw mandrel 6 is rotated to tightly jack the rusty large outer hexagonal nut, the locking nut 10 is screwed, and finally the screw mandrel 6 is pulled back and forth to disassemble the rusty large outer hexagonal nut.

Example two

Referring to fig. 4, in the second embodiment, a sleeve 8 is sleeved at the inner end of the spiral ejector rod 6, a top plate 9 is welded at the outer end of the sleeve 8, the top plate 9 is V-shaped, the top plate 9 is used for being propped against the corner of the rust large outer hexagonal nut, and the top plate 9 is matched with the corner of the rust large outer hexagonal nut. The top plate 9 increases the stress area, the service life of the spiral ejector rod 6 is prolonged, and the top plate 9 is convenient to replace after being worn.

The utility model can also drill an axial blind hole at the inner end of the spiral ejector rod 6, a connecting rod is inserted into the blind hole, the connecting rod is rotationally connected with the blind hole, and the outer end of the connecting rod is welded with a V-shaped top plate 9.

The utility model utilizes the combination of the notch structure, the ejector rod and the top plate, has simple structure, is convenient for construction site production, takes materials on site, can be produced by using residual materials, saves materials, occupies small space, can be carried in a split mode after the spiral ejector rod and the disassembly ring plate are disassembled, is convenient to operate during disassembly, and improves the disassembly efficiency of the rusted large outer hexagon nut.

The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the claims, but rather the equivalent structural changes made by the application of the present description and drawings are intended to be included within the scope of the claims.

Claims

1. The utility model provides a extracting tool for rust big outer hexagon nut of job site, includes to dismantle the annular plate, dismantles annular plate cover and establishes on rust big outer hexagon nut, its characterized in that:

one end of the detachable ring plate is provided with an arrow-shaped notch connecting structure, and four sides of the notch connecting structure are equal in length and coincide with four surfaces of the rusted outer hexagonal nut;

the two sides of the open end of the notch structure are symmetrically and fixedly connected with a left connecting plate and a right connecting plate respectively, a first handle nut and a second handle nut are fixedly connected between the left connecting plate and the right connecting plate in sequence, and the axes of the first handle nut and the second handle nut are overlapped with the center line of the notch structure;

the first handle nut and the second handle nut rotate the spiral ejector rod, the inner end of the spiral ejector rod is propped against the rusted large outer hexagonal nut, and the outer end of the spiral ejector rod is fixedly connected with a rotary handle perpendicular to the spiral ejector rod.

2. The removal tool for a rust large outer hexagonal nut on a construction site according to claim 1, wherein: and one end of the detachable annular plate, which is far away from the notch structure, is arc-shaped.

3. The removal tool for a rust large outer hexagonal nut on a construction site according to claim 1, wherein: the spiral ejector rod is screwed with the locking nut.

4. The removal tool for a rust large outer hexagonal nut on a construction site according to claim 1, wherein: the detachable annular plate is of a double-layer structure.

5. The removal tool for a rust large outer hexagonal nut on a construction site according to claim 1, wherein: the inner end of the spiral ejector rod is sleeved with a sleeve, and the outer end of the sleeve is fixedly connected with a V-shaped top plate.

6. The removal tool for a rust large outer hexagonal nut on a construction site according to claim 1, wherein: the inner end of the spiral ejector rod is provided with an axial blind hole, a connecting rod is inserted into the blind hole, and the outer end of the connecting rod is fixedly connected with a V-shaped top plate.