CN220241368U - Flange opening tool - Google Patents

Abstract

The utility model discloses a flange opening tool, which comprises: the end part of the circular ring is provided with a plurality of through holes, and the through holes are in one-to-one correspondence with the bolts on the flange; the driving ring is coaxial with the circular ring and is movably connected with the circular ring; the screwing piece is positioned in the through hole, the screwing piece and the through hole are coaxial, and a limiting hole matched with a bolt on the flange is formed in the end face of the screwing piece; the inside of the driving ring is provided with driving teeth, the outside of the screwing piece is provided with driven teeth, and the driving teeth and the driven teeth are meshed for transmission. According to the utility model, the plurality of screwing pieces are arranged, the mounting positions of the screwing pieces are in one-to-one correspondence with the bolts on the flange, and the screwing pieces synchronously rotate under the action of the driving ring, so that all nuts on the flange are driven to rotate, and all nuts on the flange are dismounted at one time.

Description

Flange opening tool

Technical Field

The utility model relates to the field of disassembly of flange bolt groups, in particular to a flange opening tool.

Background

The natural gas needs equipment such as a production tower, a filtering tower and the like in the production process, and also needs pipeline transportation in the transportation process; the structures such as a valve, a pressure gauge, a flowmeter, a manhole and the like on the tower body or the pipeline all need flange connection at the connection position so as to ensure that the connection position is in a sealing state.

When equipment needs to be maintained, such as a tower body needs to be maintained, a manhole needs to be opened so that an operator can conveniently enter the tower body from the manhole; if the structures such as a valve, a pressure gauge, a flowmeter and the like on the pipeline need to be replaced, the flanges correspondingly connected with the structures need to be disassembled; the flange connection is provided with a plurality of bolts, the flange is locked by the bolts, when one flange needs to be disassembled, workers are required to unscrew the connected bolts one by one, and for operators, the process is time-consuming and labor-consuming, and labor is wasted seriously.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a flange opening tool.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a flange opener comprising: the end part of the circular ring is provided with a plurality of through holes, and the through holes are in one-to-one correspondence with the bolts on the flange;

the driving ring is coaxial with the circular ring and is movably connected with the circular ring;

the screwing piece is positioned in the through hole, the screwing piece and the through hole are coaxial, and a limiting hole matched with a bolt on the flange is formed in the end face of the screwing piece;

the inside of the driving ring is provided with driving teeth, the outside of the screwing piece is provided with driven teeth, and the driving teeth and the driven teeth are meshed for transmission.

As a further description of the above technical solution:

the outer side face of ring has seted up the ring channel, the drive ring is located the inside sliding connection of ring channel, the outside of drive ring is provided with a plurality of handle.

As a further description of the above technical solution:

the inside wall of ring channel has seted up a plurality of mounting groove, and mounting groove and through-hole one-to-one, twist and move the inside that the piece is located the mounting groove.

As a further description of the above technical solution:

the mounting groove is coaxial with the through hole, the diameter of the mounting groove is larger than that of the through hole, and an elastic piece is arranged between the end part of the screwing piece and the inner end part of the mounting groove.

As a further description of the above technical solution:

one end of the elastic piece, which is close to the screwing piece, is fixedly connected with a push ring.

As a further description of the above technical solution:

the limiting holes are regular hexagons.

The utility model has the following beneficial effects:

compared with the prior art, the flange opening tool has the advantages that the plurality of screwing pieces are arranged, the mounting positions of the screwing pieces are in one-to-one correspondence with the bolts on the flange, the screwing pieces synchronously rotate under the action of the driving ring, so that all nuts on the flange are driven to rotate, all nuts on the flange are dismounted at one time, and compared with the existing dismounting tool, operators are required to dismount the bolts one by one, so that the flange opening tool has the advantages of high efficiency and convenience in dismounting.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 in the direction A-A;

FIG. 4 is an enlarged schematic view at B in FIG. 3;

FIG. 5 is a schematic view of a ring according to the present utility model;

FIG. 6 is a schematic view of a driving ring according to the present utility model;

fig. 7 is a schematic structural view of the screwing piece provided by the utility model.

Legend description:

1. a circular ring; 11. a through hole; 12. a mounting groove; 2. a drive ring; 21. a handle; 22. a driving tooth; 3. a screwing piece; 31. a limiting hole; 32. a passive tooth; 4. an elastic member; 5. pushing the ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, the present utility model provides a flange opener, comprising: a circular ring 1, a driving ring 2 and a screwing piece 3.

The end part of the circular ring 1 is provided with a plurality of through holes 11, and the through holes 11 are in one-to-one correspondence with bolts on the flange, including the correspondence of positions, numbers and sizes, so that the bolts can be inserted into the through holes 11; generally, 6-12 groups of bolts (the number of the bolt groups is determined according to the number of the flange to be disassembled) are arranged, the ring 1 is close to the flange, and the bolts are correspondingly inserted into the through holes 11.

The driving ring 2 is coaxial with the circular ring 1 and is movably connected, a plurality of handles 21 are arranged on the outer side of the driving ring 2, and an operator can conveniently rotate the driving ring 2 through controlling the handles 21.

The screwing piece 3 is located inside the through hole 11, the screwing piece 3 and the through hole 11 are coaxial, the screwing piece 3 and the through hole 11 are in a movable connection state, a limiting hole 31 matched with a bolt on the flange is formed in the end face of the screwing piece 3, the limiting hole 31 is regular hexagon, the shape of the limiting hole can be other shapes, the shape of the end of the bolt is specifically determined, and when the bolt is inserted into the through hole 11, the end of the bolt is inserted into the limiting hole 31 of the screwing piece 3.

The driving teeth 22 are arranged on the inner side of the driving ring 2, the driven teeth 32 are arranged on the outer side of the screwing piece 3, and the driving teeth 22 are meshed with the driven teeth 32 for transmission.

The user rotates the drive ring 2, utilizes initiative tooth 22 and passive tooth 32 meshing transmission, drives to twist and moves 3 rotations, drives the bolt rotation, realizes the synchronous rotation of bolt group on the flange, dismantles, can realize high-efficient, quick dismantlement bolt group on the flange.

The lateral surface of ring 1 has seted up the ring channel, and ring 1 all has annular convex position in the upper and lower end of ring channel, and drive ring 2 is located the inside sliding connection of ring channel, and the annular convex position of upper and lower end restriction drive ring 2 axial displacement makes drive ring 2 can only rotate.

In the actual production process, the driving ring 2 comprises two semi-ring parts which are sleeved on the annular groove and then are installed together to form an annular structure.

Referring to fig. 2-7, a plurality of mounting grooves 12 are formed in the inner side wall of the annular groove, the mounting grooves 12 are in one-to-one correspondence with the through holes 11, the screwing piece 3 is located in the mounting grooves 12, the mounting grooves 12 and the through holes 11 are coaxial, the diameter of the mounting grooves 12 is larger than that of the through holes 11, the end portions of the mounting grooves 12 are provided with partial step surfaces, the diameter of the screwing piece 3 is larger than that of the through holes 11 and smaller than that of the mounting grooves 12, the screwing piece 3 is mounted in the mounting grooves 12 from the intersection of the mounting grooves 12 and the annular groove, the step surfaces can limit the axial movement of the screwing piece 3, an elastic piece 4 is arranged between the end portions of the screwing piece 3 and the inner end portions of the mounting grooves 12, and one end of the elastic piece 4, which is close to the screwing piece 3, is fixedly connected with the pushing ring 5.

The design of the structure of the elastic piece 4 enables the screwing piece 3 to have a space for elastically moving along the axial direction, and when the end part of the bolt is sleeved on the limiting hole 31, a certain auxiliary effect can be achieved, so that the end of the bolt can enter the limiting hole 31 more easily.

The working process of the flange opening tool is as follows:

s1: aligning the through hole 11 with the mounting screw on the flange and the nut and inserting the nut into the mounting groove 12;

s2: rotating the driving ring 2, and adjusting the edge position of the limiting hole 31 by the driving ring 2 with the screwing piece 3 so that the edge position of the limiting hole 31 is matched with the edge position of the nut;

s3: the elastic force of the elastic piece 4 is released to push the push ring 5, and the push ring 5 pushes the screwing piece 3, so that the nut is assembled into the limit hole 31;

s4: continuing to rotate the driving ring 2, and for the nut which has been assembled, the screwing piece 3 is driven by the driving ring 2 to rotate with the nut, so that the nut is detached and installed; for nuts which have not been assembled yet, the screwing piece 3 continues S2-S3 until all nuts are assembled;

s5: continuing to rotate the driving ring 2, the driving ring 2 drives all the screwing pieces 3 to rotate, so that all nuts on the flange are dismounted and mounted.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. A flange opener comprising:

the flange comprises a circular ring (1), wherein a plurality of through holes (11) are formed in the end part of the circular ring (1), and the through holes (11) are in one-to-one correspondence with bolts on the flange;

the driving ring (2) is coaxially and movably connected with the circular ring (1);

the screwing piece (3), the screwing piece (3) is positioned in the through hole (11), the screwing piece (3) and the through hole (11) are coaxial, and a limit hole (31) matched with a bolt on the flange is formed in the end face of the screwing piece (3);

the inner side of the driving ring (2) is provided with driving teeth (22), the outer side of the screwing piece (3) is provided with driven teeth (32), and the driving teeth (22) are meshed with the driven teeth (32) for transmission.

2. A flange opener according to claim 1, characterized in that: an annular groove is formed in the outer side face of the circular ring (1), the driving ring (2) is located in the annular groove and is in sliding connection, and a plurality of handles (21) are arranged on the outer side of the driving ring (2).

3. A flange opener according to claim 2, characterized in that: the inner side wall of the annular groove is provided with a plurality of mounting grooves (12), the mounting grooves (12) are in one-to-one correspondence with the through holes (11), and the screwing piece (3) is positioned in the mounting grooves (12).

4. A flange opener according to claim 3, characterized in that: the mounting groove (12) is coaxial with the through hole (11), the diameter of the mounting groove (12) is larger than that of the through hole (11), and an elastic piece (4) is arranged between the end part of the screwing piece (3) and the inner end part of the mounting groove (12).

5. A flange opener according to claim 4, characterized in that: one end of the elastic piece (4) close to the screwing piece (3) is fixedly connected with a pushing ring (5).

6. A flange opener according to claim 1, characterized in that: the limiting holes (31) are regular hexagons.