CN214947062U

CN214947062U - Double-thread connection round steel pipe

Info

Publication number: CN214947062U
Application number: CN202120725105.9U
Authority: CN
Inventors: 童海燕
Original assignee: Shengzhou Dongheng Machinery Co ltd
Current assignee: Shengzhou Dongheng Machinery Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-30
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a circular steel pipe is connected to two screw threads, including nonrust steel pipe body and pipe joint, the one end of nonrust steel pipe body is equipped with first connecting pipe, and the outside of nonrust steel pipe body and the one end that is close to first connecting pipe are equipped with first spacing ring, the utility model discloses compact structure, the practicality is strong, thereby can compress the deformation space of preventing moving back the ring through first ring channel and fully increase the area of contact of preventing moving back ring and bulge loop, then cooperate through preventing between ring and the bulge loop and be convenient for better increase radial friction and then play the effect of preventing moving back to nonrust steel pipe body, make the connection of pipeline inseparabler, cooperate through the one end of sealing ring and first connecting pipe and be convenient for better seal the junction to first connecting pipe and pipe joint inner wall, prevent that liquid or gaseous in the pipeline from revealing, the second annular groove can carry out spacing to the sealing ring and prevent that the sealing ring from taking off together when nonrust steel pipe body is dismantled when following first connecting pipe and take off And (5) separating.

Description

Double-thread connection round steel pipe

Technical Field

The utility model relates to a circular steel pipe, in particular to circular steel pipe is connected to double thread belongs to circular steel pipe technical field.

Background

The circular steel pipe is a steel material having openings at both ends and a hollow concentric cross section, and the length thereof is larger than that of the periphery thereof. The specification of steel pipes is represented by the outside dimensions (e.g., outside diameter or side length), inside diameter, and wall thickness, and the dimensions range from very small diameter capillaries to large round steel pipes of several meters in diameter. Round steel pipes are used in pipelines, thermal equipment, machinery industry, oil geological drilling, vessels, chemical industry and special applications. But current circular steel pipe of double thread connection still has the relatively poor problem of leakproofness when using, and gas or liquid in the pipeline are revealed easily, and the fastness of pipe connection is not enough simultaneously, uses for a long time and loosens easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a circular steel pipe is connected to double thread.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a circular steel pipe is connected to two screw threads, including nonrust steel pipe body and pipe joint, the one end of nonrust steel pipe body is equipped with first connecting pipe, the outside of nonrust steel pipe body and the one end that is close to first connecting pipe are equipped with first spacing ring, the one end that first spacing ring is close to first connecting pipe is equipped with the bulge loop, the both ends of pipe joint all are equipped with the second connecting pipe, its one end of keeping away from the pipe joint in the outside of second connecting pipe is equipped with the second spacing ring, the one end that the pipe joint was kept away from to the second spacing ring has seted up first ring channel, the inside fixed mounting of first ring channel has the anti-moving back ring, the second annular groove has all been seted up at the inside both ends of pipe joint, the inside fixed mounting of second ring channel has the sealing ring.

As a preferred scheme of the utility model, the assorted external screw thread has been seted up to the outside of first connecting pipe and the inboard of second connecting pipe, first connecting pipe and second connecting pipe threaded connection.

As a preferable embodiment of the present invention, the first connecting pipe is slightly longer than the inner diameter of the second connecting pipe.

As a preferred embodiment of the present invention, the size of the protruding ring matches with the first annular groove.

As a preferred scheme of the utility model, the size in the sealing ring outside is greater than inboard size, just the internal diameter of sealing ring slightly is greater than the internal diameter of pipe joint.

As an optimized proposal of the utility model, the pipeline joint is a symmetrical structure.

As an optimized proposal of the utility model, the anti-returning ring and the sealing ring are made of rubber materials.

The utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, therefore, the clothes hanger is strong in practicability, thereby can compress the deformation space of preventing moving back ring and the area of contact of bulge loop is prevented to the full increase through first ring channel, then through preventing moving back and cooperate better increase radial friction and then play the effect of preventing moving back to nonrust steel pipe body of being convenient for between ring and the bulge loop, make the connection of pipeline inseparabler, cooperate through the one end of sealing ring and first connecting pipe to be convenient for better to the junction to first connecting pipe and pipe joint inner wall seal, prevent that liquid or gaseous emergence in the pipeline from revealing, the second ring channel can carry out spacing prevention sealing ring to the sealing ring and follow first connecting pipe when nonrust steel pipe body is dismantled and break away from together.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a longitudinal sectional split view of the present invention;

fig. 2 is a longitudinal sectional view of the present invention;

FIG. 3 is a schematic structural view of the pipe joint of the present invention;

fig. 4 is a schematic structural view of the sealing ring of the present invention.

In the figure: 1. a stainless steel tube body; 11. a first connecting pipe; 12. a first limit ring; 13. a convex ring; 2. a pipe joint; 21. a second connecting pipe; 22. a second stop collar; 23. a first annular groove; 24. preventing the ring from retreating; 25. a second annular groove; 26. and (4) a sealing ring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-4, the utility model provides a circular steel pipe is connected to two screw threads, including nonrust steel pipe body 1 and pipe joint 2, the one end of nonrust steel pipe body 1 is equipped with first connecting pipe 11, the outside of nonrust steel pipe body 1 and the one end that is close to first connecting pipe 11 are equipped with first spacing ring 12, the one end that first spacing ring 12 is close to first connecting pipe 11 is equipped with bulge loop 13, the both ends of pipe joint 2 all are equipped with second connecting pipe 21, its one end of keeping away from pipe joint 2 in the outside of second connecting pipe 21 is equipped with second spacing ring 22, the one end that pipe joint 2 was kept away from to second spacing ring 22 has been seted up first ring channel 23, the inside fixed mounting of first ring channel 23 has anti-back ring 24, second ring channel 25 has all been seted up at the inside both ends of pipe joint 2, the inside fixed mounting of second ring channel 25 has sealing ring 26, thereby can compress the deformation space of anti-back ring 24 through first ring channel 23 and fully increase the contact surface of anti-back ring 24 and bulge loop 13 It is long-pending, then cooperate through preventing between ring 24 and the bulge loop 13 of moving back to be convenient for better increase radial friction and then play the effect of preventing moving back to nonrust steel pipe body 1, cooperate through the one end of sealing ring 26 and first connecting pipe 11 to be convenient for better to the junction of first connecting pipe 11 with the pipe joint 2 inner wall seal, second ring channel 25 can carry on spacing the sealing ring 26 and prevent that the sealing ring 26 from following first connecting pipe 11 when nonrust steel pipe body 1 dismantles and break away from together simultaneously.

Furthermore, the outer side of the first connecting pipe 11 and the inner side of the second connecting pipe 21 are provided with matched external threads, and the first connecting pipe 11 and the second connecting pipe 21 are in threaded connection, so that better installation is facilitated.

Further, the first connection pipe 11 is sized slightly longer than the inner diameter of the second connection pipe 21 to facilitate better contact with the sealing ring 26.

Further, the size of the protruding ring 13 matches the first annular groove 23, so that the protruding ring 13 can be better inserted into the first annular groove 23.

Further, the size of the outer side of the sealing ring 26 is larger than that of the inner side, so that the sufficient compression space is convenient to seal, and the inner diameter of the sealing ring 26 is slightly larger than that of the pipeline joint 2, so that the influence on water flow is convenient to reduce.

Further, the pipeline joint 2 is of a symmetrical structure, so that a plurality of stainless steel pipe bodies 1 can be connected better.

Furthermore, the anti-receding ring 24 and the sealing ring 26 are both made of rubber materials.

Specifically, the stainless steel pipe body 1 may be an elbow pipe or a straight pipe, which is described herein as a straight pipe, and the pipe joint 2 may be a straight pipe, a curved pipe, a tee pipe, or a cross pipe, which is described herein as a straight pipe, when in use, one side of the stainless steel pipe body 1 is provided with the first connecting pipe 11, both ends of the pipe joint 2 are provided with the second connecting pipes 21, the first connecting pipe 11 is aligned with the second connecting pipes 21 and is in threaded connection, when the first connecting pipe 11 is completely engaged with the second connecting pipes 21, one end of the first connecting pipe 11 far from the stainless steel pipe body 1 is in contact with the sealing ring 26, the sealing ring 26 is fully extruded, and the outer end thereof is fully filled in the inner cavity of the second annular groove 25, the inner end of the sealing ring 26 is just matched with the inner diameter of the pipe joint 2, thereby achieving a sealing effect and preventing liquid or gas in the pipe from leaking, meanwhile, the convex ring 13 is inserted into the first annular groove 23 on one side of the second limiting ring 22, and the anti-withdrawal ring 24 is fully extruded, so that the convex ring is completely attached to one side of the convex ring 13, the radial friction force is increased, the pipeline is prevented from withdrawing and loosening, and the pipeline is connected more tightly.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-thread connection round steel pipe comprises a stainless steel pipe body (1) and a pipeline joint (2), and is characterized in that one end of the stainless steel pipe body (1) is provided with a first connecting pipe (11), one end of the outer side of the stainless steel pipe body (1) close to the first connecting pipe (11) is provided with a first limiting ring (12), one end of the first limiting ring (12) close to the first connecting pipe (11) is provided with a convex ring (13), two ends of the pipeline joint (2) are respectively provided with a second connecting pipe (21), one end of the outer side of the second connecting pipe (21) far away from the pipeline joint (2) is provided with a second limiting ring (22), one end of the second limiting ring (22) far away from the pipeline joint (2) is provided with a first annular groove (23), an anti-withdrawing ring (24) is fixedly arranged inside the first annular groove (23), and second annular grooves (25) are respectively arranged at two ends inside the pipeline joint (2), and a sealing ring (26) is fixedly arranged in the second annular groove (25).

2. A double threaded connection round steel pipe according to claim 1, characterized in that the outside of the first connection pipe (11) and the inside of the second connection pipe (21) are provided with matching external threads, and the first connection pipe (11) and the second connection pipe (21) are in threaded connection.

3. A double threaded connecting round steel pipe according to claim 1, characterized in that the first connecting pipe (11) has a dimension slightly longer than the inner diameter of the second connecting pipe (21).

4. A double threaded connecting round steel pipe according to claim 1, characterized in that the size of the male ring (13) matches the first annular groove (23).

5. A double threaded connecting round steel pipe according to claim 1, characterized in that the outside dimension of the sealing ring (26) is larger than the inside dimension, and the inside diameter of the sealing ring (26) is slightly larger than the inside diameter of the pipe joint (2).

6. A double threaded round steel tube according to claim 1, characterized in that said pipe joint (2) is of symmetrical construction.

7. A double threaded connection circular steel tube as claimed in claim 1, characterized in that said anti-back ring (24) and said sealing ring (26) are made of rubber material.