CN204525362U - A kind of screwed flange dismantling device - Google Patents

Abstract

The utility model discloses a threaded flange disassembly tool, which comprises a stretching frame, a frame body, two stretching handles and two bottom claws; the stretching frame is composed of a first horizontal bar and a first vertical bar, wherein, The upper end of the first vertical bar is connected with the side of the first horizontal bar, the frame body is made up of the second horizontal bar and the second vertical bar, and the lower end of the second vertical bar is connected with the side of the second horizontal bar; the second vertical bar It is a hollow structure, the side of the second vertical rod is provided with several through holes, the side of the first vertical rod is provided with grooves, and springs and balls are arranged in the grooves, and the first vertical rod is sleeved in the upper end of the second vertical rod , and the first vertical bar and the second vertical bar are connected by pressing the ball into the through hole; the second horizontal bar is a hollow structure, and one end of the two bottom claws is respectively sleeved on the two ends of the second horizontal bar; The bottom claws are all L-shaped structures; the first crossbar is a hollow structure, and one end of the two stretching handles is respectively sleeved on the two ends of the first crossbar. The utility model can meet the disassembly and assembly of flange plates of various sizes in a narrow space.

Description

A threaded flange removal tool

technical field

The utility model belongs to the field of hardware tools, and relates to a threaded flange disassembly tool.

Background technique

Flanges are widely used in various equipment, especially in the connection of pipelines. There are usually flanges at both ends of the pipeline. Fixed round holes through which the bolts connect the two flanges. The connection methods between the flange itself and the pipeline include welding and threaded connections.

In actual installation and maintenance operations, it is often necessary to disassemble the flange connected to the pipeline from the pipeline. Due to the large volume of the flange, it is generally connected to the pipeline by water-proof film tape or twine and wound on the thread of the connection between the two. The connection between the flange and the pipeline is required to be tight, so it is generally not possible to turn the flange by hand for disassembly. Recently, two bolts distributed diagonally are screwed into the threaded holes on the periphery of the flange, a crowbar is inserted between the two bolts, and the crowbar is pulled to rotate the flange to disassemble. The problem that this method exists is: the one, unsafe, crowbar is easy to perform and hurts people;

At present, the Chinese patent "flange disassembly tool" (patent number: ZL200620087060.2) that has been authorized in China extends into the round hole on the flange through a tool similar to the English letter F to rotate and disassemble the flange. However, this tool still has the following disadvantages: the flange is generally placed at the pipe connection or valve, buried underground or at the corner of the building, in a small space, so this tool will be damaged in some narrow parts because the rod is too long And can't use, if the bar is done shorter, it will be difficult for personnel to operate because the bar is too short, and the shortcoming is particularly prominent when the bar is shortened when using a larger flange.

Utility model content

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a threaded flange disassembly tool, which can meet the disassembly and assembly of flanges of various sizes in a narrow space.

In order to achieve the above purpose, the threaded flange dismounting tool described in the utility model includes a stretching frame, a frame body, two stretching handles and two bottom claws;

The stretching frame is composed of a first horizontal bar and a first vertical bar, wherein the upper end of the first vertical bar is connected with the side of the first horizontal bar, and the frame body is composed of a second horizontal bar and a second vertical bar. The lower ends of the two vertical bars are connected with the side surfaces of the second horizontal bar;

The second vertical rod is a hollow structure, the side of the second vertical rod is provided with a number of through holes, the side of the first vertical rod is provided with grooves, and springs and balls are arranged in the grooves, and the first vertical rod is sleeved on the second vertical rod. In the upper end of the two vertical rods, and press the ball into the through hole to connect the first vertical rod and the second vertical rod;

The second crossbar is a hollow structure, and one end of the two bottom claws is respectively sleeved on both ends of the second crossbar;

The two bottom claws are L-shaped structures;

The first cross bar is a hollow structure, and one end of the two stretching handles is respectively sleeved on two ends of the first cross bar.

Both the cross section of the first vertical rod and the cross section of the inner wall of the second vertical rod are regular hexagonal structures.

The first horizontal bar and the first vertical bar form a T-shaped structure.

The second horizontal bar and the second vertical bar form a T-shaped structure.

The utility model has the following beneficial effects:

One end of the two bottom claws in the threaded flange dismounting tool described in the utility model is respectively sleeved on the two ends of the second cross bar, and the bottom claws can extend into different sizes by adjusting the protruding length of the two bottom claws. In the threaded hole of the flange, so as to adapt to flanges of different sizes. In addition, when in use, the bottom jaw and the stretching handle are connected in the axial direction through the second vertical rod and the first vertical rod. By pressing the ball into the through hole to connect the first vertical bar and the second vertical bar, choose different positions of the through hole to adjust the axial distance, and at the same time, the two stretch handles can be retracted into the first horizontal bar, or the first The stretching handle shrinks into the first crossbar, and then the flange is disassembled by rotating the first crossbar, so as to adapt to various small disassembly and assembly environments. The structure is simple, easy to use, and highly adaptable.

Description of drawings

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

Figure 2 is an exploded view of the utility model.

Among them, 1 is the stretch handle, 2 is the first horizontal bar, 3 is the first vertical bar, 4 is the bottom claw, 5 is the second horizontal bar, 6 is the second vertical bar, 7 is a through hole, and 8 is a groove .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

With reference to Fig. 1 and Fig. 2, threaded flange dismounting tool described in the utility model comprises stretch frame, frame body, two stretch handles 1 and two bottom claws 4; The first vertical bar 3 is composed, wherein, the upper end of the first vertical bar 3 is connected with the side of the first horizontal bar 2, the frame body is composed of the second horizontal bar 5 and the second vertical bar 6, and the lower end of the second vertical bar 6 It is connected with the side of the second horizontal bar 5; the second vertical bar 6 is a hollow structure, and the side of the second vertical bar 6 is provided with a plurality of through holes 7, and the side of the first vertical bar 3 is provided with grooves 8, and the grooves 8 A spring and a ball are arranged inside, the first vertical rod 3 is sleeved in the upper end of the second vertical rod 6, and the first vertical rod 3 and the second vertical rod 6 are connected by pressing the ball into the through hole 7; The crossbar 5 is a hollow structure, and one end of the two bottom claws 4 is respectively sleeved on the two ends of the second crossbar 5; the two bottom claws 4 are both L-shaped structures; the first crossbar 2 is a hollow structure, and the two pull One end of the extension handle 1 is respectively sleeved on both ends of the first cross bar 2; the cross section of the first vertical bar 3 and the cross section of the inner wall of the second vertical bar 6 are regular hexagonal structures; the first cross bar 2 and the second A vertical bar 3 forms a T-shaped structure; the second horizontal bar 5 and the second vertical bar 6 form a T-shaped structure.

Concrete operation of the present utility model is:

When in use, insert the two bottom claws 4 into the outer peripheral threaded holes of the flange, adjust the extension length of the bottom claws 4 for flanges of different sizes, hold the second cross bar 5 with one hand, and pull it out The first vertical rod 3, the spring on the first vertical rod 3 resists the balls and gets stuck at the through holes 7 on the second vertical rod 6, but the clamping force is not particularly large, so as to realize the positioning adjustment, Just stretch to a suitable position, pull out the two stretching handles 1 from the first cross bar 2 to a suitable position, and turn the stretching handle 1 to realize the disassembly and assembly of the threaded flange; when the operating space is narrow , it is not necessary to pull out the stretching handle 1 from the first crossbar 2, just rotate the first crossbar 2 directly, or just pull out one stretching handle 1 for operation, after use, respectively pull out the stretching handle 1 , The first vertical rod 3 and the bottom claw 4 are retracted, which saves space and is convenient to carry.

The cross-section of the first vertical bar 3 and the inner wall of the second vertical bar 6 are regular hexagonal structures, which ensures that relative rotation between the stretching frame and the frame body will not occur.

The utility model can be used for the disassembly and installation between the threaded flange and the pipeline, and can also be applied to the installation and disassembly of all the threaded connectors with holes.

Claims (4)

1. A threaded flange disassembly tool, characterized in that it comprises a stretching frame, a frame body, two stretching handles (1) and two bottom claws (4); The stretching frame is made up of the first cross bar (2) and the first vertical bar (3), wherein, the upper end of the first vertical bar (3) is connected with the side of the first cross bar (2), and the frame body consists of The second horizontal bar (5) and the second vertical bar (6) are composed, and the lower end of the second vertical bar (6) is connected with the side of the second horizontal bar (5); The second vertical bar (6) is a hollow structure, and the side of the second vertical bar (6) is provided with several through holes (7), and the side of the first vertical bar (3) is provided with grooves (8), and the grooves (8) There are springs and balls inside, the first vertical rod (3) is sleeved in the upper end of the second vertical rod (6), and the first vertical rod (3) is pressed into the through hole (7) by the ball and the second vertical bar (6) are connected; The second crossbar (5) is a hollow structure, and one end of the two bottom claws (4) is respectively sleeved on both ends of the second crossbar (5); The two bottom claws (4) are L-shaped structures; The first crossbar (2) is a hollow structure, and one end of the two stretching handles (1) is respectively sleeved on the two ends of the first crossbar (2). 2. The threaded flange removal tool according to claim 1, characterized in that, the cross section of the first vertical rod (3) and the cross section of the inner wall of the second vertical rod (6) are regular hexagonal structures . 3. The threaded flange removal tool according to claim 1, characterized in that, the first horizontal bar (2) and the first vertical bar (3) form a T-shaped structure. 4. The threaded flange removal tool according to claim 1, characterized in that, the second horizontal bar (5) and the second vertical bar (6) form a T-shaped structure.