CN216201339U

CN216201339U - Petroleum pipe joint threaded connection structure

Info

Publication number: CN216201339U
Application number: CN202122578670.XU
Authority: CN
Inventors: 刘志超; 卢斌; 刘玉军
Original assignee: Tianjin Jinggong Petroleum Special Pipe Fittings Co ltd
Current assignee: Tianjin Jinggong Petroleum Special Pipe Fittings Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-05
Anticipated expiration: 2031-10-26

Abstract

The utility model provides a threaded connection structure of a petroleum pipe joint, which comprises a first pipe section and a second pipe section communicated with the first pipe section, wherein an aligning component and a positioning component are arranged between the outlet end of the first pipe section and the inlet end of the second pipe section; the positioning assembly is adopted, so that the positioning assembly and the positioning assembly can be positioned, and the phenomenon of shaft rotation is avoided; adopt bolt coupling assembling, it is convenient to lock fixedly between the two, and the construction operation of being convenient for reduces the butt joint degree of difficulty, guarantees connection quality, has better practicality.

Description

Petroleum pipe joint threaded connection structure

Technical Field

The utility model relates to the technical field of petroleum transportation equipment, in particular to a threaded connection structure of a petroleum pipe joint.

Background

The pipe joint is a connecting component used for connecting pipelines, has the effects of convenient installation, excellent performance, long service life and the like, is widely applied to the fields of water supply and drainage, electric power, metallurgy, urban construction, petrochemical industry, environmental protection and the like, and particularly appears to be particularly prominent in the field of petrochemical industry; and because the flange plates need to be connected through a plurality of groups of bolts, the connection mode is complicated, the time consumption is long, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to solve the problems in the prior art and provide a threaded connection structure of a petroleum pipe joint.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a petroleum pipe joint threaded connection structure, includes first pipeline section and the second pipeline section that is linked together rather than, be provided with between the exit end of first pipeline section and the import end of second pipeline section and aim at subassembly and locating component well, by aim at the subassembly and aim at first pipeline section and second pipeline section and connect well, and by locating component carries out the location installation to first pipeline section and second pipeline section, still be connected through a threaded connection subassembly between first pipeline section and the second pipeline section, threaded connection subassembly is used for consolidating and protecting between the two.

Furthermore, the alignment assembly comprises an alignment joint and an alignment groove, one end of the alignment joint is connected to the outlet end of the first pipe section, the outer diameter of the alignment joint is smaller than that of the first pipe section, the alignment groove is arranged at the inlet end of the second pipe section, and the structure of the alignment groove is matched with that of the alignment joint.

Further, be provided with the sealing washer between the other end of adjusting the joint and the diapire of adjusting the recess well, the sealing washer is used for sealing between the two.

Furthermore, the other end of the alignment joint is provided with a chamfer angle along the arc curved surface.

Furthermore, the positioning assembly is provided with a positioning protrusion and a positioning groove, the positioning protrusion is arranged on the outer side wall of the alignment joint, the positioning groove is arranged on the side wall of the alignment groove, and the structure of the positioning groove is matched with that of the positioning protrusion.

Further, the cross-sectional area of the positioning projection is gradually reduced from the inlet end to the outlet end of the alignment joint.

Furthermore, the positioning assembly is provided with a positioning pin and a positioning hole, one end of the positioning pin is connected to the inlet end of the second pipe section, the other end of the positioning pin is provided with a chamfer, the positioning hole is arranged at the outlet end of the first pipe section, and the structure of the positioning pin is matched with that of the positioning pin.

Further, the positioning assemblies are arranged in multiple groups.

Further, threaded connection subassembly includes spacing ring, spacing groove and thread bush, the fixed cover of spacing ring is located on the outer wall of second pipeline section, and this spacing ring slides and sets up in the spacing inslot, the spacing groove is seted up on the interior jade of thread bush, the one end slip cap of thread bush is located on the second pipeline section, and the other end of this thread bush is joined in marriage on first pipeline section soon.

Further, the threaded sleeve and the first pipe section are connected through a locking piece.

Further, the retaining member includes through-hole, locking bolt and screw hole, the through-hole is seted up on the thread bush, locking bolt wears to locate in the through-hole, the screw hole is seted up on first pipeline section, locking bolt's tip is joined in marriage soon in the screw hole.

The utility model has the advantages and positive effects that: the utility model has simple structure and convenient operation, and can ensure that the central axis of the first pipe section and the central axis of the second pipe section are superposed by adopting the aligning component, so that the first pipe section and the second pipe section are positioned on the same straight line and the connection quality between the first pipe section and the second pipe section is ensured; the positioning assembly is adopted, so that the first pipe section and the second pipe section can be positioned, and the phenomenon of shaft rotation during installation between the first pipe section and the second pipe section is prevented; the bolt connecting assembly is adopted, so that the first pipe section and the second pipe section can be conveniently locked and fixed, construction operation can be conveniently carried out by operators, and the connecting difficulty is reduced; the retaining member is used in cooperation, can further consolidate between thread bush and the first pipeline section, prevents that the thread bush from appearing the phenomenon of falling back, guarantees bolt coupling assembling's locking effect, has better practicality.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic view showing the connection structure between the aligning member, the positioning member, the screwing member and the locking member in example 1;

FIG. 3 is a schematic structural view of example 2;

FIG. 4 is a schematic view showing the connection structure of the aligning member, the positioning member, the screwing member and the locking member in example 2.

In the figure: 1. a first tube section; 2. a second tube section; 3. aligning the component; 31. aligning the joint; 32, a first step of removing the first layer; aligning the groove; 4. a positioning assembly; 411. positioning the projection; 412; a positioning groove; 421. positioning pins; 422. positioning holes; 5. a threaded connection assembly; 51. a limiting ring; 52. a limiting groove; 53. a threaded sleeve; 6. a seal ring; 7. a locking member; 71. a through hole; 72. locking the bolt; 73. a threaded bore.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description and accompanying drawings that illustrate the utility model.

Example 1

As shown in fig. 1 and 2, a threaded connection structure for a petroleum pipe joint comprises a first pipe section 1 and a second pipe section 2 communicated with the first pipe section, wherein an alignment assembly 3 and a positioning assembly 4 are arranged between an outlet end of the first pipe section 1 and an inlet end of the second pipe section 2, the first pipe section 1 and the second pipe section 2 are aligned and connected by the alignment assembly 3, so that central axes of the first pipe section 1 and the second pipe section 2 are overlapped after butt joint of the first pipe section 1 and the second pipe section 2 is completed, the first pipe section 1 and the second pipe section 2 are fully butted and the butt joint quality of the two is ensured, the first pipe section 1 and the second pipe section 2 are positioned and installed by the positioning assembly 4, so that the first pipe section 1 and the second pipe section 2 are more firm after butt joint, and do not generate corresponding shaft rotation phenomenon, the first pipe section 1 and the second pipe section 2 are further connected by a threaded connection assembly 5, and the threaded connection assembly 5 is used for reinforcing and protecting the first pipe section 1 and the second pipe section 2, adopt threaded connection subassembly 5, can be convenient for lock fixedly between first pipeline section 1 and the second pipeline section 2, can also protect and seal butt joint department between the two, and this structure easy operation, the installation and use of being convenient for.

As shown in fig. 2, the alignment assembly 3 includes an alignment joint 31 and an alignment groove 32, one end of the alignment joint 31 is connected to the outlet end of the first pipe segment 1, and the outer diameter of the alignment joint 31 is smaller than the outer diameter of the first pipe segment 1, the alignment groove 32 is opened at the inlet end of the second pipe segment 2, and the structure thereof matches with the structure of the alignment joint 31, when the first pipe segment 1 and the second pipe segment 2 are aligned, the alignment joint 31 connected to the first pipe segment 1 is inserted into the alignment groove 32 of the second pipe segment 2 until the first pipe segment and the second pipe segment are completely matched, at this time, the central axes between the first pipe segment 1 and the second pipe segment 2 are coincident, so as to ensure that the first pipe segment and the second pipe segment are connected on the same straight line, a sealing ring 6 is arranged between the other end of the alignment joint 31 and the bottom wall of the alignment groove 32, the sealing ring 6 is used for sealing between the first pipe segment 1 and the second pipe segment 2, so as to prevent the leakage at the interface between the first pipe segment and the second pipe segment 2, the other end of the alignment joint 31 is provided with a chamfer along the arc curved surface thereof, and the chamfer provided therein is used for guiding and assembling, so that the alignment joint 31 can be conveniently inserted into the alignment groove 32.

As shown in fig. 2, the positioning assembly 4 is provided with a positioning protrusion 411 and a positioning groove 412, the positioning protrusion 411 is provided on the outer side wall of the alignment joint 31, the positioning groove 412 is provided on the side wall of the alignment groove 32, and the structure of the positioning groove 412 is matched with the structure of the positioning protrusion 411, when the alignment joint 31 is inserted into the alignment groove 32, the positioning protrusion 411 is inserted into the positioning groove 412 until the alignment joint and the positioning groove are completely matched, which can ensure that the first pipe section 1 and the second pipe section 2 do not pivot after being connected, so that the connection between the first pipe section and the second pipe section is more stable, and the cross-sectional area of the positioning protrusion 411 is gradually reduced from the inlet end to the outlet end of the alignment joint 31, so that an inclined surface is formed on the positioning protrusion 411, and the positioning protrusion 411 is conveniently inserted into the positioning groove 412; the positioning assemblies 4 are arranged into a plurality of groups, so that the positioning effect of the positioning assemblies 4 on the utility model is improved.

As shown in fig. 2, the threaded connection assembly 5 includes a limiting ring 51, a limiting groove 52 and a threaded sleeve 53, the limiting ring 51 is fixedly sleeved on the outer wall of the second pipe section 2, the limiting ring 51 is slidably disposed in the limiting groove 52, the limiting groove 52 is disposed on the inner wall of the threaded sleeve 53, one end of the threaded sleeve 53 is slidably sleeved on the second pipe section 2, and the other end of the threaded sleeve 53 is rotatably fitted on the first pipe section 1, after the first pipe section 1 and the second pipe section 2 are butted, the threaded connection assembly 5 is used for fastening and connecting, the threaded sleeve 53 is slid along the second pipe section 2, so that the limiting ring 51 and the limiting groove 52 slide relatively, when the threaded sleeve 53 slides onto the first pipe section 1, the threaded sleeve 53 is rotatably fitted on the first pipe section 1, so that the first pipe section 1 and the second pipe section 2 are fastened and connected, and the two are always kept in the current butted state, thereby ensuring the connection quality between the two, meanwhile, the threaded sleeve 53 can also protect the butt joint between the first pipe section 1 and the second pipe section 2, and prevent dust from entering the joint between the first pipe section and the second pipe section.

As shown in fig. 2, the threaded sleeve 53 is connected with the first pipe section 1 through a locking member 7, the locking member 7 includes a through hole 71, a locking bolt 72 and a threaded hole 73, the through hole 71 is opened on the threaded sleeve 53, the locking bolt 72 is inserted into the through hole 71, the threaded hole 73 is opened on the first pipe section 1, the end of the locking bolt 72 is screwed into the threaded hole 73, when the threaded sleeve 53 is completely screwed onto the first pipe section 1, the locking bolt 72 is inserted into the through hole 71, and the output end of the locking bolt 72 is screwed into the threaded hole 73, so that the locking bolt 72 reinforces the threaded sleeve 53, the threaded sleeve 53 is prevented from falling back, and the fastening effect between the first pipe section 1 and the second pipe section 2 is further improved.

Example 2

The difference between this embodiment and embodiment 1 is that the positioning assembly 4 is provided with a positioning pin 421 and a positioning hole 422, one end of the positioning pin 421 is connected to the inlet end of the second pipe segment 2, the other end of the positioning pin is provided with a chamfer, the positioning hole 422 is provided at the outlet end of the first pipe segment 1, the structure of the positioning pin 422 is matched with that of the positioning pin 421, when the alignment joint 31 and the alignment groove 32 are butted, the positioning pin 421 is inserted into the corresponding positioning hole 422, so that the positioning pin 421 is matched with the positioning hole 422, and the axial rotation phenomenon between the first pipe segment 1 and the second pipe segment 2 is avoided.

In addition, the alignment joint 31 and the first pipe section 1, the positioning protrusion 411 and the alignment joint 31, and the positioning pin 421 and the second pipe section 2 can be connected by welding, wherein the sealing ring 6 and the metal sealing ring 6 are adopted, and the specific structure and the working principle of the sealing ring 6 and the thread bush 53 belong to the prior art in the technical field, and are not improved in the application, so that the details are omitted.

The utility model has simple structure and convenient operation, and the central axis of the first pipe section 1 and the central axis of the second pipe section 2 can be coincided by adopting the aligning component 3, so that the two are positioned on the same straight line and the connection quality between the two is ensured; the positioning assembly 4 is adopted, so that the first pipe section 1 and the second pipe section 2 can be positioned, and the shaft rotation phenomenon during installation is prevented; the bolt connecting assembly is adopted, so that the first pipe section 1 and the second pipe section 2 can be conveniently locked and fixed, construction operation by operators is facilitated, and the connecting difficulty is reduced; the locking piece 7 is used in a matched manner, so that the space between the threaded sleeve 53 and the first pipe section 1 can be further reinforced, the threaded sleeve 53 is prevented from falling back, the locking effect of the bolt connecting assembly is ensured, and the bolt connecting assembly has better practicability, and by taking the embodiment 2 as an example, the concrete working process of the bolt connecting assembly is as follows:

when the first pipe section 1 and the second pipe section 2 are connected, the alignment joint 31 on the first pipe section 1 is inserted into the alignment groove 32 on the second pipe section 2, so that the first pipe section 1 and the second pipe section 2 are in the same straight line, and when the alignment joint 31 is inserted into the alignment groove 32, the positioning pin 421 connected to the second pipe section 2 is inserted into the positioning hole 422 on the first pipe section 1, so as to ensure that the first pipe section 1 and the second pipe section 2 cannot be axially rotated; after the process is finished, the threaded sleeve 53 slides along the second pipe section 2, so that the limiting ring 51 slides relatively in the limiting groove 52, and when the threaded sleeve 53 slides to the first pipe section 1, the threaded sleeve 53 is screwed on the first pipe section 1, so that the first pipe section 1 and the second pipe section 2 are fastened and connected, and the first pipe section 1 and the second pipe section 2 are always kept in a current butt joint state; when the threaded sleeve 53 is completely screwed in the first pipe section 1, the locking bolt 72 is inserted into the through hole 71, and the output end of the locking bolt 72 is screwed in the threaded hole 73, so that the locking bolt 72 reinforces the threaded sleeve 53, the threaded sleeve 53 is prevented from falling back, and the connection quality between the first pipe section 1 and the second pipe section 2 is further improved.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. A petroleum pipe joint threaded connection structure comprises a first pipe section (1) and a second pipe section (2) communicated with the first pipe section, and is characterized in that: be provided with between the exit end of first pipeline section (1) and the import end of second pipeline section (2) and adjust subassembly (3) and locating component (4) well, by adjust subassembly (3) well to first pipeline section (1) and second pipeline section (2) well and connect, and by locating component (4) is fixed a position the installation to first pipeline section (1) and second pipeline section (2), still be connected through a threaded connection subassembly (5) between first pipeline section (1) and second pipeline section (2), threaded connection subassembly (5) are used for consolidating and protecting between the two.

2. A threaded connection for a petroleum pipe joint as defined in claim 1, wherein: the aligning assembly (3) comprises an aligning joint (31) and an aligning groove (32), one end of the aligning joint (31) is connected to the outlet end of the first pipe section (1), the outer diameter of the aligning joint (31) is smaller than that of the first pipe section (1), the aligning groove (32) is arranged at the inlet end of the second pipe section (2), and the structure of the aligning groove is matched with that of the aligning joint (31).

3. A threaded connection for a petroleum pipe joint as defined in claim 2, wherein: a sealing ring (6) is arranged between the other end of the alignment joint (31) and the bottom wall of the alignment groove (32), and the sealing ring (6) is used for sealing between the other end of the alignment joint and the bottom wall of the alignment groove.

4. A threaded connection for a petroleum pipe joint as defined in claim 3, wherein: the positioning assembly (4) is provided with a positioning protrusion (411) and a positioning groove (412), the positioning protrusion (411) is arranged on the outer side wall of the alignment joint (31), the positioning groove (412) is arranged on the side wall of the alignment groove (32), and the structure of the positioning groove (412) is matched with the structure of the positioning protrusion (411).

5. A threaded connection for a petroleum pipe joint as defined in claim 4, wherein: the cross-sectional area of the positioning protrusion (411) is gradually reduced from the inlet end to the outlet end of the alignment joint (31).

6. A threaded connection for a petroleum pipe joint as defined in claim 2, wherein: the positioning assembly (4) is provided with a positioning pin (421) and a positioning hole (422), one end of the positioning pin (421) is connected with the inlet end of the second pipe section (2), the other end of the positioning pin is provided with a chamfer, the positioning hole (422) is arranged at the outlet end of the first pipe section (1), and the structure of the positioning pin is matched with that of the positioning pin (421).

7. A threaded connection for a petroleum pipe joint as defined in claim 1, wherein: the positioning components (4) are arranged into a plurality of groups.

8. A threaded connection for a petroleum pipe joint as defined in claim 1, wherein: threaded connection subassembly (5) include spacing ring (51), spacing groove (52) and thread bush (53), spacing ring (51) are fixed to be overlapped and are located on the outer wall of second pipe section (2), and this spacing ring (51) slide and set up in spacing groove (52), spacing groove (52) are seted up on the interior wall of thread bush (53), the one end sliding sleeve of thread bush (53) is located on second pipe section (2), and the other end of this thread bush (53) is joined in marriage soon on first pipe section (1).

9. A threaded connection for a petroleum pipe joint as defined in claim 8, wherein: the threaded sleeve (53) is connected with the first pipe section (1) through a locking piece (7).

10. A threaded connection for a petroleum pipe joint as defined in claim 9, wherein: retaining member (7) include through-hole (71), locking bolt (72) and screw hole (73), through-hole (71) are seted up on thread bush (53), in through-hole (71) are worn to locate in locking bolt (72), screw hole (73) are seted up on first pipeline section (1), the tip of locking bolt (72) is joined in marriage soon in screw hole (73).