CN103075592B - Self-adaptive pipeline connector of machine - Google Patents

Abstract

The invention provides a mechanical self-adaptive pipeline connector, which is composed of two extrusion rings, a first basic body, a second basic body, a flange ring, a metal sealing ring, a nut, a spring washer and a bolt. When the pipes are respectively put into the first and second basic bodies, the nuts and bolts are tightened, and the flange ring and the second basic body are tightly pressed against the first basic body under the action of axial force to realize reliable sealing. The invention has the characteristics of simple structure, reliable connection, convenient operation, and is suitable for the connection of pipelines within ±10° axis angle.

Description

Mechanical Adaptive Pipe Connectors

technical field

The present invention relates to a pipeline connection device, in particular to a mechanical self-adaptive pipeline connection device.

Background technique

At present, the connection methods of pipelines mainly include: welding, bolted flange connection, clamp connection, etc. The connection process of these three methods is cumbersome, the structure is complex, and the cost is high. In an emergency, the connection cannot be achieved quickly, and the possibility of failure is high. , hindering the efficient and reliable connection of pipelines.

Domestic research on pipe connectors is still in its infancy, and there is no efficient and reliable connector for connecting pipes with a certain angle between the axes. However, foreign countries have relatively mature technologies and products for quick connection of pipes. Represented by smart flange connectors, it is widely used in the connection of pipelines and has a high market share.

Contents of the invention

The purpose of the present invention is to provide a mechanical self-adaptive pipeline connector with simple structure, reliable connection, convenient operation, and suitable for pipeline connection within ±10° axis angle.

The purpose of the present invention is achieved like this:

It includes two extrusion rings, a first basic body, a second basic body, and a flange ring;

The structure of the two extrusion rings is the same, the outer surface is a cylindrical surface, and the inner surface is composed of a collar, a thrust surface, an inner cone surface distributed at intervals, and an inner cylindrical surface;

The first basic body is mainly composed of connecting section, transition section and sealing section. The outer surface of the connecting section is spherical and the inner surface is cylindrical. The inner and outer surfaces of the transition section are both cylindrical. The inner surface of the sealing section is thrust Surface and cylindrical surface, on the cylindrical surface of the inner surface of the sealing section is provided with an inwardly convex sealing ring, the outer surface of the sealing section is composed of a bearing ring and a cylindrical surface, on the cylindrical surface of the outer surface of the sealing section is provided with an outward Convex spherical protrusions;

The second basic body is also composed of a connecting section, a transition section and a sealing section, and the structure of the transition section and the sealing section of the second basic body is the same as that of the first basic body. The outer surface of the connecting section is a cylindrical surface, and the inner surface is an inner spherical surface;

The inner surface of the flange ring is composed of an inner spherical surface and an inner conical surface, and the outer surface is a cylindrical surface;

Bolt holes are opened on the connecting section of the flange ring and the second basic body, and the two are connected by bolts.

The present invention may also include:

1. The end section of the cylindrical surface on the inner surface of the sealing section is a threaded section.

2. A sealing groove is formed on the inner spherical surface of the connecting section of the second basic body.

3. The outwardly convex spherical protrusion provided on the cylindrical surface of the outer surface of the sealing section is connected with the cylindrical surface through an excessive arc.

The invention provides a mechanical self-adaptive pipeline connector with simple structure and reliable connection, which is suitable for the connection of pipelines within ±10° axis angle, and can realize quick connection for pipelines with an outer diameter of less than 8 inches. When installing the connector, first load the middle 12 nuts 4 and 12 nuts 8 to a predetermined load to determine the relative angle between the basic body 3 and the basic body 9 to achieve a reliable seal in the middle, and then load the external load of the machine tool Under the action of axial load, the outer extrusion ring 2 moves toward the middle along the axis of the joint, forcing the spherical protrusions 11 and 12 on the basic body of the connector to shrink radially, and the sealing rings 16 and 17 shrink radially to tightly bite the pipe 1 At the same time, the threaded section 10 at the outer end of the connector basic body 3 is pressed into the surface of the pipeline 1 to complete the connection to the pipeline 1, and connect the other end of the connector in the same way. The invention has the characteristics of simple structure, reliable connection, convenient operation, and is suitable for the connection of pipelines within ±10° axis angle.

Description of drawings

Fig. 1 is a structural diagram of a mechanical self-adaptive pipeline connector;

Figure 2 is a partial structural diagram before the mechanical adaptive pipeline connector is installed;

Figure 3 is a partial structural diagram of the mechanical self-adaptive pipeline connector after installation;

Fig. 4 is a structural diagram of an extrusion ring of a mechanical self-adaptive pipeline connector;

Fig. 5 is a structural diagram of a flange ring of a mechanical self-adaptive pipeline connector;

Fig. 6 is a structural diagram of a metal sealing ring of a mechanical self-adaptive pipe connector;

Fig. 7 is a structural diagram of the first basic body of the mechanical self-adaptive pipeline connector;

Fig. 8 is a structural diagram of the second basic body of the mechanical self-adaptive pipeline connector.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

Referring to FIG. 1 , the mechanical self-adaptive pipe connector is composed of an extrusion ring 2 , a basic body 3 , a basic body 9 , a flange ring 5 , a metal sealing ring 6 , a nut 4 , a spring washer 7 , and a bolt 8 .

In combination with Fig. 4, the extrusion ring 2 is composed of a collar 19, a thrust surface 41, a connecting tool positioning cylindrical surface 27, an inner cone surface 22, 24, 26, and an inner cylindrical surface 21, 23, 25, and 19 sets of collars before installation On the carrier ring 15 , the inner diameter of the inner cylindrical surfaces 21 , 23 , 25 is smaller than the outer diameter of the threaded end 10 and the spherical protrusions 11 , 12 .

7, the basic body 3 is mainly composed of sealing rings 16, 17, spherical protrusions 11, 12, threaded sections 10, transition sections 13, 20, 14, 18, transitional arcs 33, 34, pipeline thrust surfaces 36, spherical surfaces 35 , composed of eight small grooves 32 evenly distributed along the circumferential direction on the threaded section 10, the threaded section 10 is connected with the spherical protrusion 11 through the transition section 13, the spherical protrusions 11 and 12 pass through the transition section 14, and the spherical protrusion 12 and the bearing ring 15 pass through the transition Section 14 is connected, bearing ring 15 is connected with spherical surface 35 through transition section 18 , spherical protrusion 11 is connected with transition sections 13 and 20 through transition arc 33 , and spherical protrusion 12 is connected with transition sections 20 and 14 through transition arc 34 .

8, the basic body 9 is mainly composed of sealing rings 16, 17, spherical protrusions 11, 12, threaded sections 10, transition sections 13, 20, 14, 18, transitional arcs 33, 34, pipeline thrust surfaces 36, flanges end 38, 12 bolt holes 37 evenly distributed in the circumferential direction, an inner spherical surface 39, a sealing groove 40, and 8 small grooves 32 uniformly distributed in the circumferential direction on the threaded section 10. The threaded section 10 is connected to the spherical protrusion 11 through the transition section 13, The spherical protrusions 11 and 12 pass through the transition section 14, the spherical protrusion 12 and the bearing ring 15 are connected through the transition section 14, the bearing ring 15 and the flange end 38 are connected through the transition section 18, and the spherical protrusion 11 and the transition sections 13 and 20 pass through the transition arc 33 connection, the spherical protrusion 12 and the transition section 20, 14 are connected through the transitional arc 34, first connect and fasten 12 bolts 8 to fix the middle flange ring 5 and the basic body 9 during the connection.

Referring to FIG. 5 , the flange ring 5 is mainly composed of a bolt hole 28 , an inner cone surface 29 and an inner spherical surface 30 , and the inner cone surface 29 increases the angle range of the pipe axis. The metal sealing ring 6 is mainly composed of an inner spherical surface 31 , before being connected, the metal sealing ring 6 is put into the sealing groove 40 , and the inner spherical surface 31 is in contact with the spherical surface 35 .

Referring to FIG. 6 , the metal sealing ring 6 is mainly composed of an inner spherical surface 31 , the metal sealing ring 6 is put into the sealing groove 40 before being connected, and the inner spherical surface 31 is in contact with the spherical surface 35 .

The two extrusion rings 2 are axisymmetric structures, and are symmetrically arranged on the outer ends of the basic bodies 3, 9, the joint basic bodies 3, 9 are axisymmetric structures, and the flange ring 5 is an axisymmetric structure, which is sleeved on the basic body 3 , The metal sealing ring 6 is stuck in the sealing groove 40 of the basic body 9 .

The threaded section 10 is composed of eight small grooves 32 uniformly distributed along the circumferential direction. The threaded section 10 is connected to the spherical protrusion 11 through the transition section 13, the spherical protrusions 11 and 12 pass through the transition section 14, and the spherical protrusion 12 and the bearing ring 15 pass through the transition section. 14 is connected, the bearing ring 15 is connected with the spherical surface 35 through the transition section 18, the spherical protrusion 11 is connected with the transition sections 13 and 20 through the transition arc 33, and the spherical protrusion 12 is connected with the transition sections 20 and 14 through the transition arc 34.

The inner tapered surface 29 of the flange ring 5 increases the included angle range of the pipe axis, and the inner spherical surface 30 of the flange ring 5 is in contact with the spherical surface 35 before connection.

Combined with Figures 1 and 3, when installing, first load the middle 12 nuts 4 and 12 nuts 8 to a predetermined load to determine the relative angle between the basic body 3 and the basic body 9 to achieve a reliable seal in the middle, and then in the outer Under the action of the axial load of the loading tool, the outer extrusion ring 2 moves toward the middle along the axis of the joint. Since the inner diameter of the inner cylindrical surface 21, 23, 25 is smaller than the outer diameter of the spherical protrusions 11, 12 and the threaded section 10, the basic body of the connector is forced to The spherical protrusions 11 and 12 on the top contract radially, and the sealing rings 16 and 17 contract radially to tightly bite the surface of the pipe 1 to achieve a reliable seal. At the same time, the threaded section 10 at the outer end of the connector basic body 3 is pressed into the pipe 1 The surface resists various external forces, prevents the pipeline 1 from being pulled out, and completes the connection to the pipeline 1. Connect the other end of the connector in the same way a second time.

The installation process is as follows:

(1) Mark on the surface of the pipe to insert the inner depth of the connector;

(2) Insert one end of the pipeline 1 to be connected into the interior of the connector basic body 3 until the marked depth;

(3) Insert one end of the pipeline 1 to be connected into the inside of the connector basic body 9 until the marked depth;

(4) load the middle 12 nuts 4 and 12 nuts 8 to a predetermined load with a tool;

(5) The external loading machine axially loads the extruding ring 2 outside the basic body 3, so that the extruding ring 2 moves to the middle of the joint to reach a predetermined position;

(6) Also axially load the extruding ring 2 outside the basic body 9 by the external loading tool, push it to the middle of the joint to a predetermined position, complete the connection of the pipeline 1, and remove the loading tool.

Claims (1)

1. a mechanical self-adaptability pipe jointer, comprises two extrusion rings, the first element body, the second element body, flange ring, it is characterized in that:

The structure of two extrusion rings is identical, and outer surface is cylndrical surface, and internal surface is connected to form by the collar, thrust surface, inner conical surface spaced apart and inner cylinder;

First element body connects to form primarily of linkage section, changeover portion and seal section, the outer surface of linkage section spherically, internal surface is cylndrical surface, the inner and outer surface of changeover portion is cylndrical surface, the internal surface of seal section is made up of pipeline thrust surface and cylndrical surface, the cylndrical surface of seal section internal surface is provided with the seal ring to convex, the outer surface of seal section is made up of load-carrying ring and cylndrical surface, and the cylndrical surface of seal section outer surface is provided with cambered outwards spherical protuberances;

Second element body is also connected to form by linkage section, changeover portion and seal section, and the changeover portion of the second element body is identical with the structure of seal section with the changeover portion of the first element body with the structure of seal section, the outer surface of the linkage section of the second element body is cylndrical surface, internal surface is inner ball surface, the inner ball surface of the linkage section of the second element body has seal groove, before connecting, metal o-ring puts into sealing groove, metal o-ring forms primarily of inner ball surface, the sphere-contact of the outer surface of metal o-ring inner ball surface and the first element body linkage section;

The internal surface of flange ring is connected to form by inner ball surface and inner conical surface, and inner conical surface increases conduit axis angular range, and by the sphere-contact of the outer surface of the inner ball surface of flange ring and the first element body linkage section before connecting, outer surface is cylndrical surface;

The linkage section of flange ring and the second element body has bolt hole, is bolted therebetween;

The latter end of the cylndrical surface of seal section internal surface is thread section; By excessive circular sliding slopes between the cambered outwards spherical protuberances that the cylndrical surface of seal section outer surface is arranged and cylndrical surface;

Installation process requires the necessary adpting flange ring (5) of the first step and element body (9), realizes the reliable sealing of linkage section, then connects the seal section of the first element body and the seal section of the second element body successively.