CN105221874B

CN105221874B - Full-bore inputting type pipe joint

Info

Publication number: CN105221874B
Application number: CN201510752929.4A
Authority: CN
Inventors: 唐俊峰
Original assignee: Jiangsu Ai Suo New Material Science And Technology Ltd
Current assignee: Jiangsu Ai Suo New Material Science And Technology Ltd
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2017-09-26
Anticipated expiration: 2035-11-06
Also published as: CN105221874A

Abstract

The invention discloses a kind of full-bore inputting type pipe joint, it is characterized in that, described full-bore inputting type pipe joint includes a connection sleeve pipe, a separable push pipe is provided with described connection sleeve pipe, a separable tube expansion is provided between described push pipe and described connection sleeve pipe, the pipeline of required connection is located between described tube expansion and connection sleeve pipe, and the described inwall of push pipe is on same concentric face with the inwall of the pipeline of required connection.Because the inwall of push pipe and the inwall of pipeline are on same concentric face, the flow resistance of the fluid in pipeline is greatly reduced, effectively increase the launch performance of pipeline, it is to avoid the excessive wear of pipeline junction, effectively extend the service life of pipeline.In addition, this concentric structure can effectively reduce impact and erosion of the fluid to attachment structure, fluid seepage is effectively prevented.

Description

Full-bore jacking type pipeline joint

Technical Field

The invention relates to a pipeline connecting device, in particular to a full-bore jacking type pipeline joint.

Background

When laying or maintaining a pipe system, in particular a flexible pipe, it is often necessary to install joints to the pipe. The existing pipeline joint is mostly connected by flanges, the joint is easy to loosen and leak, and the reliability is poor. In addition, the inner diameter of the existing connecting structure is different from that of the pipeline, so that the flow resistance of fluid in the pipeline is large, the carrying performance of the pipeline is affected, and meanwhile, the pipeline is extremely easy to be excessively worn at the connecting position to cause leakage or breakage of the pipe wall.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a full-bore jacking type pipeline joint.

The technical problem of the invention is mainly solved by the following technical scheme: the full-bore jacking type pipeline joint is characterized by comprising a connecting sleeve, a separable jacking pipe is arranged in the connecting sleeve, a separable expanding pipe is arranged between the jacking pipe and the connecting sleeve, a pipeline to be connected is located between the expanding pipe and the connecting sleeve, and the inner wall of the jacking pipe and the inner wall of the pipeline to be connected are located on the same concentric surface.

As a better embodiment of the invention, the connecting sleeve comprises a cylindrical sleeve main body, the inner wall of the sleeve main body is provided with an anti-slip ring groove array consisting of anti-slip ring grooves, the inner side of the head part of the sleeve main body is provided with an annular shoulder groove, the inner side of the tail part of the sleeve main body is provided with a wedge-shaped sealing inclined plane, the jacking pipe comprises a cylindrical jacking cylinder, the head part of the jacking cylinder is provided with an annular positioning snap ring, the outer side of the tail part of the jacking cylinder is provided with a wedge-shaped jacking inclined plane, the jacking inclined plane is matched with the sealing inclined plane, the expanding pipe comprises a cylindrical expanding cylinder, the head part of the expanding cylinder is provided with an annular expansion flange, the side wall of the expanding cylinder is provided with an expansion joint array consisting of expansion joints, the outer side wall of the expanding cylinder is provided with an anti-slip protrusion array consisting of annular anti-slip protrusions, the anti-skid protrusions are matched with the anti-skid ring grooves.

As a preferred embodiment of the invention, the anti-skid protrusions and the anti-skid ring grooves are alternately arranged on both sides of the pipeline to be connected.

As a preferred embodiment of the present invention, the head of the sleeve body is provided with a first flange disc, the tail of the sleeve body is provided with a second flange disc, and the outer side of the positioning snap ring is provided with an annular connecting ring.

As a preferred embodiment of the invention, the cross section of the anti-skid protrusion is semicircular, and the cross section of the anti-skid ring groove is rectangular.

The full-bore jacking type pipeline joint has the following advantages: because the inner wall of the jacking pipe and the inner wall of the pipeline are positioned on the same concentric surface, the flow resistance of fluid in the pipeline is greatly reduced, the carrying performance of the pipeline is effectively improved, excessive abrasion of the pipeline joint is avoided, and the service life of the pipeline is effectively prolonged. In addition, the concentric structure can effectively reduce the impact and erosion of the fluid on the connecting structure and effectively prevent the fluid from leaking.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the full-bore top-entry type pipe joint of the present invention;

FIG. 2 is a schematic view of the full-bore top-entry type pipe joint of FIG. 1 in a different perspective;

3 FIG. 33 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 full 3 bore 3 jack 3- 3 in 3 pipe 3 joint 3 of 3 FIG. 32 3 taken 3 along 3 line 3 A 3- 3 A 3; 3

FIG. 4 is an enlarged detail view of area B of the full bore drop in pipe joint of FIG. 3;

FIG. 5 is an enlarged detail view of area C of the full bore drop in pipe joint of FIG. 3;

FIG. 6 is an exploded perspective view of the full bore push-in type pipe joint of the present invention;

FIG. 7 is a perspective view of the top pipe of the full-bore push-in pipe joint of FIG. 6;

FIG. 8 is a cross-sectional view of the push pipe of FIG. 7 taken along line D-D;

FIG. 9 is a perspective view of the expander of the full bore top entry pipe joint of FIG. 6;

FIG. 10 is an enlarged detail view of the E region of the expander of FIG. 9;

FIG. 11 is a perspective view of the coupling sleeve of the full bore jack-in pipe fitting of FIG. 6;

FIG. 12 is a cross-sectional view of the connection sleeve of FIG. 11 taken along line F-F;

FIG. 13 is an enlarged detail view of the area G of the coupling sleeve of FIG. 12;

FIG. 14 is an enlarged detail view of the H region of the connection sleeve of FIG. 12;

FIG. 15 is a perspective view of a second embodiment of a full bore push-in pipe fitting of the present invention;

FIG. 16 is an exploded perspective view of the full bore push-in pipe joint of FIG. 15;

wherein,

1. a full-bore jack-in pipe joint; 2. connecting a sleeve; 21. a cannula body; 211. an anti-slip ring groove; 22. a first flanged disk; 23. a second flanged disk; 24. sealing the inclined plane; 25. a shoulder groove; 3. jacking pipes; 31. a top cylinder; 32. positioning the snap ring; 33. pressing the inclined plane; 4. expanding the tube; 41. expanding the cylinder; 42. expanding and connecting the flanges; 43. expanding the seam; 44. the anti-skid is prominent; 5. a pipeline.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 to 13, the full-bore push-in type pipe joint 1 includes a connecting sleeve 2, a separable push pipe 3 is disposed in the connecting sleeve 2, a separable expansion pipe 4 is disposed between the push pipe 3 and the connecting sleeve 2, and a pipe 5 to be connected is disposed between the expansion pipe 4 and the connecting sleeve 2.

As shown in fig. 11 to 14, the connection sleeve 2 includes a cylindrical sleeve main body 21, the head of the sleeve main body 21 is provided with a first flange disc 22, the tail of the sleeve main body is provided with a second flange disc 23, the inner wall of the sleeve main body 21 is provided with an anti-slip ring groove array composed of anti-slip ring grooves 211, the inner side of the head of the sleeve main body 21 is provided with an annular shoulder groove 25, and the inner side of the tail of the sleeve main body 21 is provided with a wedge-shaped sealing bevel 24.

As shown in fig. 7 and 8, the top tube 3 includes a cylindrical top tube 31, the head of the top tube 31 is provided with an annular positioning snap ring 32, the outer side of the tail of the top tube 31 is provided with a wedge-shaped pressing inclined surface 33, and the pressing inclined surface 33 is matched with the sealing inclined surface 24.

As shown in fig. 9 and 10, the expansion tube 4 comprises a cylindrical expansion cylinder 41, the head of the expansion cylinder 41 is provided with an annular expansion flange 42, the side wall of the expansion cylinder 41 is provided with an expansion joint array consisting of expansion joints 43, the outer side wall of the expansion cylinder 41 is provided with an anti-slip protrusion array consisting of annular anti-slip protrusions 44, and the anti-slip protrusions 44 are matched with the anti-slip ring grooves 211.

In use, as shown in fig. 3 to 6, a user firstly passes the pipeline 5 to be connected through the connecting sleeve 2, sleeves the pipeline 5 on the expansion cylinder 41 of the expansion tube 4, and then inserts the expansion tube 4 into the connecting sleeve 2 preliminarily. Then, the top pipe 3 is pushed into the expanding pipe 4, the top pipe 3 is directly extruded into the expanding pipe 4 by using an external power device, in the process, the expanding pipe 4 is continuously expanded, the anti-skid protrusions 44 on the side wall of the expanding cylinder 41 extrude the inner wall of the pipeline 5, and meanwhile, the outer wall of the pipeline 5 and the anti-skid ring groove 211 of the connecting sleeve 2 are mutually extruded, so that the outer wall of the pipeline 5 is partially embedded into the anti-skid ring groove 211. The pipe 5, the anti-slip protrusions 44 and the anti-slip ring grooves 211 form a double sealing surface of the pipe, and the sealing performance is excellent. The power equipment can be mechanical equipment such as a hydraulic machine and the like or a jack operated manually and the like, and is convenient to install on site.

In addition, as shown in fig. 4, after the connection is completed, the expansion flange 42 of the expansion pipe 4 is fitted into the shoulder groove 25 of the connection sleeve 2, and a fixing structure is formed at the head of the connection sleeve 2.

At this time, as shown in fig. 5, the pressing slope 33 of the top pipe 3 and the sealing slope 24 of the connecting sleeve 2 are engaged with each other to tightly press the pipe 5 into the connecting sleeve 2 and form a sealing surface at the tail of the connecting sleeve 2. After the pipeline 5 is connected, the inner wall 31 of the top pipe 3 and the inner wall 51 of the pipeline 5 are positioned on the same concentric surface, so that the flow resistance of fluid in the pipeline 5 is greatly reduced, the carrying performance of the pipeline is effectively improved, excessive abrasion of the pipeline connection part is avoided, and the service life of the pipeline is effectively prolonged. In addition, the concentric structure can effectively reduce the impact and erosion of the fluid on the connecting structure and effectively prevent the fluid from leaking. In addition, because the fluid in the pipeline does not contact with the joint structure, the fluid pollution can not be caused, and the pipeline is particularly suitable for conveying fluid media in the food industry.

In addition, the anti-slip protrusions 44 and the anti-slip ring grooves 211 may be alternately disposed at both sides of the pipe 5 to be connected, further improving the sealing performance.

The anti-slip protrusion 44 has a semicircular cross section, and the anti-slip ring groove 211 has a rectangular cross section. Of course, the cross-section of the anti-slip protrusion 44 and the anti-slip ring groove 211 may have other shapes as long as a sealing structure with the pipe 5 is formed.

Referring to fig. 15 and 16, a second embodiment of the full-bore push-in pipe joint of the present invention is shown, in which the full-bore push-in pipe joint 100 includes a connecting sleeve 200, an expansion pipe 400 and a push pipe 300. At this time, both sides of the coupling sleeve 200 do not have a flange disk structure, and the structure of the optical head is directly adopted. In addition, the head of the top pipe 300 is provided with an annular connecting ring 301, and the outer wall or the inner wall of the connecting ring 301 can be provided with a thread structure for connecting with other external joints. Of course, the connecting ring 301 may also be directly connected to other joint devices by welding.

Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a full latus rectum pushes up formula pipe joint, its characterized in that, full latus rectum push up formula pipe joint (1) contain a adapter sleeve (2), adapter sleeve (2) in be equipped with a separable push pipe (3), push pipe (3) with adapter sleeve (2) between be equipped with a separable expand tube (4), required pipeline (5) of connecting be located expand tube (4) and adapter sleeve (2) between, the inner wall of push pipe (3) and the inner wall of required pipeline (5) of connecting be in same concentric surface, adapter sleeve (2) contain a cylindric sleeve pipe main part (21), the inner wall of sleeve pipe main part (21) on be equipped with an anti-skidding annular groove array of constituteing by anti-skidding annular groove (211), the head inboard of sleeve pipe main part (21) be equipped with an annular shoulder groove (25), the inner side of the tail part of the sleeve main body (21) is provided with a wedge-shaped sealing inclined plane (24), the top pipe (3) comprises a cylindrical top barrel (31), the head of the top barrel (31) is provided with an annular positioning snap ring (32), the outer side of the tail part of the top cylinder (31) is provided with a wedge-shaped top pressure inclined plane (33), the top pressure inclined plane (33) is matched with the sealing inclined plane (24), the expansion tube (4) comprises a cylindrical expansion cylinder (41), the head of the expansion cylinder (41) is provided with an annular expansion joint flange (42), the side wall of the expansion cylinder (41) is provided with an expansion joint array consisting of expansion joints (43), the outer side wall of the expansion cylinder (41) is provided with an anti-skid protrusion array consisting of annular anti-skid protrusions (44), the anti-skid protrusions (44) are matched with the anti-skid ring grooves (211).

2. The full-bore push-in type pipe joint as claimed in claim 1, wherein the anti-slip protrusions (44) and the anti-slip ring grooves (211) are alternately disposed at both sides of the pipe (5) to be connected.

3. The full-bore top-entry pipe joint as claimed in claim 2, wherein the head of the sleeve body (21) is provided with a first flange disc (22), the tail of the sleeve body is provided with a second flange disc (23), and the outer side of the positioning snap ring (32) is provided with an annular connecting ring (301).

4. The full-bore top-entry pipe joint according to claim 2 or 3, wherein the cross-section of the anti-slip protrusion (44) is semicircular, and the cross-section of the anti-slip ring groove (211) is rectangular.