CN210318901U

CN210318901U - High-precision metal welded pipe joint

Info

Publication number: CN210318901U
Application number: CN201921195156.4U
Authority: CN
Inventors: 王诗斌
Original assignee: Chaohu Pengyuan Metal Welding Pipe Co ltd
Current assignee: Chaohu Pengyuan Metal Welding Pipe Co ltd
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2020-04-14
Anticipated expiration: 2029-07-27

Abstract

The utility model relates to a coupling technical field just discloses a high accuracy metal welded pipe joint, including first joint, first circular slot has been seted up to the inside of first joint, the equal fixedly connected with second of the left and right sides of first joint connects, the spread groove has been seted up to the inside that the second connects. This high-precision metal welded pipe joint, cooperation through fastening cap and second joint is used, fastening screw thread and thread groove looks adaptation, connect both to become a whole, make fastening nut can drive the fixture block and move to the direction of snap ring, the motion of snap ring will seal among the piece pushes away the gap between pipeline body and the spread groove, and the rigidity of sealing the piece, make it stably place, use through sealed piece, the sealed piece fills up the space between pipeline body and the spread groove, and seal it, avoid breeding of bacterium, produce the corruption, the purpose that reduces the crevice corrosion has been realized, service life is prolonged.

Description

High-precision metal welded pipe joint

Technical Field

The utility model relates to a coupling technical field specifically is a high accuracy metal welded pipe connects.

Background

The precision tube is a seamless steel tube with high precision and high brightness produced by cold drawing or cold rolling process, the inner and outer diameter sizes of the precision tube can be within 0.2mm, and the precision tube has lighter weight while ensuring the same bending strength and torsion strength, so the precision tube is widely used for manufacturing precision mechanical parts and engineering structures.

The existing metal pipes welded by argon arc welding, plasma welding and carbon dioxide mostly adopt a bell and spigot lap welding method, a large-area gap exists between a socket inner wall and a spigot outer wall cylinder, dirt is easy to store, fungi are bred, the corrosion resistance of a pipeline is reduced, the defect of easy occurrence of crevice corrosion exists, the service life of the pipe is shortened, and the pipe joint is inconvenient to use, so that the problem is solved by providing a high-precision metal welded pipe joint.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a high accuracy metal welded pipe joint possesses advantages such as reducing the crevice corrosion, has solved current adoption argon arc and has welded, the metal pipe that plasma welding and carbon dioxide welded adopts the bell and spigot overlap joint welding method mostly, has the large tracts of land clearance between bellmouth inner wall and the socket outer wall barrel, easily deposits the dirt, breed the fungus class, reduce the corrosion resisting ability of pipeline, the shortcoming of the crevice corrosion of easily taking place has been existed, its life has been reduced, the problem of inconvenient use.

(II) technical scheme

In order to realize the purpose of reducing the crevice corrosion, the utility model provides a following technical scheme: a high-precision metal welded pipe joint comprises a first joint, wherein a first circular groove is formed in the first joint, second joints are fixedly connected to the left side and the right side of the first joint, a connecting groove is formed in the second joint, fastening threads are fixedly connected to the outer side of the second joint, a sealing block is movably connected to the inner side of the connecting groove, a limiting circular sheet is movably connected to the right side of the sealing block, a clamping ring is fixedly connected to the right side of the limiting circular sheet, a clamping block is movably connected to the outer side of the clamping ring and located in the connecting groove, a second circular groove is formed in the clamping block, a fastening cap is fixedly connected to the right side of the clamping block, a threaded groove is formed in the inner side of the fastening cap and located in the clamping block, a connecting block is fixedly connected to the right side of the fastening cap, and a fixing strip is fixedly connected, the right side fixedly connected with welding circular arc piece of fixed strip, the right side of fixed strip is through welding circular arc piece fixedly connected with pipeline body.

Preferably, the sealing block comprises a rubber round block, the left side of the rubber round block is fixedly connected with a conical block, and round holes are formed in the conical block and the rubber round block.

Preferably, the size of the clamping ring is matched with the size of the second circular groove in the clamping block, and the clamping ring is a stainless steel clamping ring.

Preferably, the left end of the pipe body penetrates through the connection block, the fastening cap and the sealing block and extends to the inside of the sealing block.

Preferably, the number of the fixing strips is not less than two and the fixing strips are the same in size, and the fixing strips are uniformly distributed on the right side of the connecting block.

Preferably, the size of the inner space of the fastening cap is matched with the size of the second connector, and the fastening thread is matched with the thread groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a high accuracy metal welded pipe connects possesses following beneficial effect:

1. this high-precision metal welded pipe joint, cooperation through fastening cap and second joint is used, fastening screw thread and thread groove looks adaptation, connect both to become a whole, make fastening nut can drive the fixture block and move to the direction of snap ring, the motion of snap ring will seal among the piece pushes away the gap between pipeline body and the spread groove, and the rigidity of sealing the piece, make it stably place, use through sealed piece, the sealed piece fills up the space between pipeline body and the spread groove, and seal it, avoid breeding of bacterium, produce the corruption, the purpose that reduces the crevice corrosion has been realized, service life is prolonged.

2. This high accuracy metal welded pipe connects, cooperation through fastening screw thread and thread groove is used, be a whole with fastening cap and second articulate, make both all with the contact of pipeline body, cooperation through fixed strip and welding circular arc piece is used, when needs are with pipeline body and first joint welded fastening together, only need with welding circular arc piece and pipeline body welding can, make the rigidity of fastening cap, can not rotate, and then make the rigidity of pipeline body, and welded process and step have been reduced, and the solder joint is few, save the welding rod, cost reduction's purpose has been realized.

Drawings

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

fig. 2 is a schematic structural view of the sealing block of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1 first joint, 2 first circular slots, 3 second joints, 4 connecting grooves, 5 fastening threads, 6 sealing blocks, 601 rubber circular blocks, 602 conical blocks, 603 round holes, 7 limiting circular sheets, 8 clamping rings, 9 clamping blocks, 10 second circular slots, 11 fastening caps, 12 threaded grooves, 13 connecting blocks, 14 fixing strips, 15 welding circular arc sheets and 16 pipeline bodies.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a high-precision metal welded pipe joint includes a first joint 1, a first circular groove 2 is formed in the first joint 1, a second joint 3 is fixedly connected to both left and right sides of the first joint 1, a connecting groove 4 is formed in the second joint 3, a fastening screw 5 is fixedly connected to the outer side of the second joint 3, the fastening screw 5 is matched with a threaded groove 12, a fastening cap 11 and the second joint 3 are connected into a whole by matching the fastening screw 5 and the threaded groove 12, both of which are in contact with a pipe body 16, and when the pipe body 16 and the first joint 1 are welded and fixed together by matching a fixing strip 14 and a welding circular arc piece 15, the welding circular arc piece 15 and the pipe body 16 are only required to be welded, so that the fastening cap 11 is fixed in position and cannot be rotated, and the pipe body 16 is fixed in position, the welding process and steps are reduced, welding spots are few, welding rods are saved, the purpose of reducing cost is achieved, a sealing block 6 is movably connected inside a connecting groove 4, the sealing block 6 comprises a rubber round block 601, a conical block 602 is fixedly connected to the left side of the rubber round block 601, round holes 603 are formed in the conical block 602 and the rubber round block 601, the conical block 602 and the rubber round block 601 are both made of rubber, the rubber has the characteristics of corrosion resistance and good sealing performance, a limiting wafer 7 is movably connected to the right side of the sealing block 6, a clamping ring 8 is fixedly connected to the right side of the limiting wafer 7, the size of the clamping ring 8 is matched with the size of a second round groove 10 in a clamping block 9, the clamping ring 8 is a stainless steel clamping ring, a clamping block 9 is movably connected to the outer side of the clamping ring 8 and located in the connecting groove 4, the second round groove 10 is formed in the clamping block 9, and a fastening cap 11, the size of the inner space of the fastening cap 11 is matched with the size of the second joint 3, a thread groove 12 is formed in the fastening cap 11 and located on the outer side of the clamping block 9, a connecting block 13 is fixedly connected to the right side of the fastening cap 11, a fixing strip 14 is fixedly connected to the right side of the connecting block 13, the number of the fixing strips 14 is not less than two and the size of the fixing strips is the same, the fixing strips 14 are uniformly distributed on the right side of the connecting block 13, a welding arc piece 15 is fixedly connected to the right side of the fixing strip 14, the welding arc piece 15 is matched with the pipeline body 16, so that the welding between the pipeline body and the pipeline body is more stable, the pipeline body 16 is fixedly connected to the right side of the fixing strip 14 through the welding arc piece 15, the left end of the pipeline body 16 penetrates through the connecting block 13, the fastening cap 11 and the sealing block 6 and extends into the sealing block 6, the fastening thread, connect into a whole with both, make fastening nut 11 can drive fixture block 9 to the direction motion of snap ring 8, the motion of snap ring 8 pushes away sealed piece 6 among the gap between pipeline body 16 and the spread groove 4, and with sealed piece 6 rigidity, make it place stably, use through sealed piece 6, sealed piece 6 fills up the space between pipeline body 16 and the spread groove 4, and seal it, avoid breeding of bacterium, produce the corruption, realized reducing the mesh of gap corruption, and the service life is prolonged.

When the pipeline connecting device is used, the fastening threads 5 are matched with the thread grooves 12, the fastening cap 11 and the second connector 3 are connected into a whole, the fastening nut 11 can drive the clamping block 9 to move towards the direction of the clamping ring 8, the position of the sealing block 6 is fixed, the sealing block is stably placed, and the sealing block 6 fills up a gap between the pipeline body 16 and the connecting groove 4, so that the purpose of reducing the corrosion of the gap is achieved.

To sum up, this high accuracy metal welded pipe connects, cooperation through fastening cap 11 and second joint 3 is used, fastening screw thread 5 and thread groove 12 looks adaptation, connect into a whole with both, make fastening nut 11 can drive fixture block 9 to the direction motion of snap ring 8, the motion of snap ring 8 pushes seal block 6 in the gap between pipeline body 16 and the spread groove 4, and to the rigidity of seal block 6, make it stably place, use through seal block 6, seal block 6 fills up the space between pipeline body 16 and the spread groove 4, and seal it, avoid breeding of bacterium, produce the corruption, realized the mesh that reduces the gap corruption, service life has been prolonged.

Moreover, the fastening cap 11 and the second joint 3 are connected into a whole by matching the fastening thread 5 and the thread groove 12, so that both are in contact with the pipeline body 16, the fixing strip 14 and the welding arc piece 15 are matched for use, when the pipeline body 16 and the first joint 1 are required to be welded and fixed together, only the welding arc piece 15 and the pipeline body 16 are required to be welded, the fastening cap 11 is fixed in position and cannot rotate, the pipeline body 16 is fixed in position, welding processes and steps are reduced, welding spots are few, welding rods are saved, the purpose of reducing cost is achieved, the problems that most of existing metal pipes adopting argon arc welding, plasma welding and carbon dioxide welding adopt a bell and spigot lap welding method, a large-area gap exists between a socket inner wall and a socket outer wall cylinder, dirt is easy to exist, fungi are bred, and the corrosion resistance of the pipeline is reduced are solved, has the defects of easy occurrence of crevice corrosion, reduced service life and inconvenient use.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-precision metal welded pipe joint comprises a first joint (1), and is characterized in that: the inner part of the first joint (1) is provided with a first circular groove (2), the left side and the right side of the first joint (1) are both fixedly connected with a second joint (3), the inner part of the second joint (3) is provided with a connecting groove (4), the outer side of the second joint (3) is fixedly connected with a fastening thread (5), the inner part of the connecting groove (4) is movably connected with a sealing block (6), the right side of the sealing block (6) is movably connected with a limiting wafer (7), the right side of the limiting wafer (7) is fixedly connected with a snap ring (8), the outer side of the snap ring (8) and the inner part positioned on the connecting groove (4) are movably connected with a clamping block (9), the inner part of the clamping block (9) is provided with a second circular groove (10), the right side of the clamping block (9) is fixedly connected with a fastening cap (11), the inner part of the fastening cap (11) and the outer side positioned on the, the right side fixedly connected with connecting block (13) of fastening cap (11), the right side fixedly connected with fixed strip (14) of connecting block (13), the right side fixedly connected with welding circular arc piece (15) of fixed strip (14), welding circular arc piece (15) fixedly connected with pipeline body (16) are passed through on the right side of fixed strip (14).

2. A high precision welded metal pipe joint according to claim 1, wherein: the sealing block (6) comprises a rubber round block (601), the left side of the rubber round block (601) is fixedly connected with a conical block (602), and round holes (603) are formed in the conical block (602) and the rubber round block (601).

3. A high precision welded metal pipe joint according to claim 1, wherein: the size of the clamping ring (8) is matched with the size of a second circular groove (10) in the clamping block (9), and the clamping ring (8) is a stainless steel clamping ring.

4. A high precision welded metal pipe joint according to claim 1, wherein: the left end of the pipeline body (16) penetrates through the connecting block (13), the fastening cap (11) and the sealing block (6) and extends to the inside of the sealing block (6).

5. A high precision welded metal pipe joint according to claim 1, wherein: the number of the fixing strips (14) is not less than two and the fixing strips are the same in size, and the fixing strips (14) are uniformly distributed on the right side of the connecting block (13).

6. A high precision welded metal pipe joint according to claim 1, wherein: the size of the inner space of the fastening cap (11) is matched with that of the second joint (3), and the fastening thread (5) is matched with the thread groove (12).