CN217301998U - Socket type metal pipeline with pushing and dragging functions - Google Patents

Abstract

The utility model provides a socket joint type metal pipeline with pushing and dragging functions, which comprises a pipe body, a bellmouth and a socket, wherein a sealing cavity is arranged in the bellmouth, a sealing rubber ring is arranged in the sealing cavity, and the sealing cavity, the sealing rubber ring and the socket in an assembly state are matched to form a sealing structure; the inner wall of the socket between the end face of the outer side of the socket and the sealing cavity is sequentially additionally provided with a self-anchoring ring bin and a pushing ring bin from outside to inside, the section of the self-anchoring ring bin and the cross-pushing ring bin, which is cut along the axis of the pipeline, is approximately the section of the circular truncated cone, which is cut along the axis of the pipeline, and the self-anchoring ring bin and the pushing ring bin are arranged in the back direction along the axis of the pipeline. If the foundation where the pipeline is located is settled or earthquakes occur during operation, at the moment, the raised ring moves between the metal baffle ring A and the metal baffle ring B, or deflects at a certain angle, or the raised ring moves and the bell and spigot deflects at the same time, so that the safe operation of the pipeline can be guaranteed to the maximum extent.

Description

Socket type metal pipeline with pushing and dragging functions

Technical Field

The utility model belongs to the metal pipeline top pushes away and dilatory construction field, concretely relates to have socket joint formula metal pipeline that pushes away and dilatory function simultaneously.

Background

The existing trenchless ductile cast iron jacking pipe and dragging pipe are one of the existing metal pipeline technologies. The pipe jacking technology is a product applied to trenchless jacking construction formed by improving a common nodular cast iron pipe, as shown in fig. 6, cement mortar with a certain thickness is lined on the outer wall of the common nodular cast iron pipe, and a jacking flange and a reinforcing rib are welded on a socket part, so that a jacking force transmission structure for jacking the end face of a socket by using the socket jacking flange is formed, and the jacking construction of the pipe jacking is realized.

The push flange and the rib plate are fixed on the common nodular cast iron pipe body in a welding mode, so that the welding cost is high, and the welding strength is high. In addition, the jacking distance is limited, and even if the number of relays is increased, jacking construction of more than 1000 meters is difficult to realize. Construction is greatly affected when crossing large rivers, lakes, buildings, cultural relic protection areas and other large obstacles.

In addition, the nodular cast iron pipe jacking product does not have the function of self-anchoring of the interface, so that the pipeline interface has the risk of disconnection or other interface failure caused in soft foundation areas or areas with serious foundation settlement such as earthquake zones and goafs.

The dragging pipe technology is a non-excavation product applied to dragging construction, which is formed by improving a common nodular cast iron pipe, as shown in figure 7, a special coating or fiber cement is coated on the outer wall of the common nodular cast iron pipe, a self-anchoring bin is added on a socket, a ring is welded on a spigot part, and the socket is connected through a corresponding self-anchoring accessory rubber support body and a baffle ring, so that dragging force is transmitted, and the dragging pipe construction is realized.

The nodular cast iron is simple and convenient to install, high in dragging construction efficiency and low in comprehensive cost, and has good market advantages. However, the technology is the same as the pipe jacking technology, is limited by the performance of the product, and has high construction difficulty and high risk when crossing large rivers, lakes, buildings, cultural relic protection areas and other large barriers.

Disclosure of Invention

The utility model discloses a solve prior art problem, provide and have two-way from the anchor function, collect the top and push away and dilatory function in the flexible interface metal pipeline of an organic whole.

The utility model adopts the technical proposal that:

a socket type metal pipeline with pushing and pulling functions simultaneously comprises a pipe body, a bellmouth and a spigot, wherein a sealing cavity is arranged in the bellmouth, a sealing rubber ring is arranged in the sealing cavity, and the sealing cavity, the sealing rubber ring and the spigot in an assembly state are matched to form a sealing structure; a self-anchoring baffle ring bin and a pushing baffle ring bin are sequentially additionally arranged on the inner wall of the socket between the end surface of the outer side of the socket and the sealing cavity from outside to inside, the section of the self-anchoring baffle ring bin and the section of the pushing baffle ring bin, which is cut along the axis of the pipe body, are approximate to the section of the circular truncated cone, which is cut along the axis of the circular truncated cone, the self-anchoring baffle ring bin and the pushing baffle ring bin are arranged in a back manner along the axis direction of the pipe body, and baffle ring positioning bulges which are arranged along the circumferential direction of the inner side of the socket continuously or discontinuously are arranged between the self-anchoring baffle ring bin and the pushing baffle ring bin;

a locking component A is arranged in the self-anchoring baffle ring bin, and a locking component B is arranged in the pushing baffle ring bin; the socket outer wall is equipped with the protruding ring of round, insert in the socket during socket assembly, protruding ring lies in between locking part A and the locking part B, protruding ring with the embedding keep off the locking part A and the locking part B cooperation that keep off in the ring storehouse and the top pushes away and keep off the ring storehouse from the anchor and make the socket auto-lock under the assembled condition keep off between the ring storehouse and the top pushes away and keep off the ring storehouse from the anchor, inject the extraction and the insertion of socket, push away thrust and pass through protruding ring and auto-lock part B transmission during the top pushes away.

Furthermore, the locking component a comprises an elastic support body a and an arc-shaped metal baffle ring a, and the locking component B comprises an elastic support body B and an arc-shaped metal baffle ring B; the arc-shaped metal baffle ring A and the arc-shaped metal baffle ring B are of split splicing type annular structures; the deepest part of the self-anchoring baffle ring bin is larger than the sum of the radial heights of the metal baffle ring A and the raised ring extension pipe body; the deepest part of the pushing baffle ring bin is larger than the sum of the radial heights of the metal baffle ring B and the protruding ring extending pipe body; the inner diameter of a circular ring formed by splicing the metal baffle ring A and the metal baffle ring B is less than or equal to the outer diameter of the socket;

the elastic support body A is matched with the inner wall of the self-anchoring retaining ring bin to provide a radially inward hooping force for the metal retaining ring A along the pipe body, the elastic support body B is matched with the inner wall of the pushing retaining ring bin to provide a radially inward hooping force for the metal retaining ring B along the pipe body or the metal retaining ring A and the metal retaining ring B are connected with each other between every two adjacent retaining rings through the elastic support body A and the elastic support body B to provide an inward contracting hooping force for the assembled integral retaining ring.

Furthermore, a generatrix corresponding to the section of the self-anchoring baffle ring bin and the pushing baffle ring bin which is cut along the axial line of the pipe body and is similar to a circular truncated cone is a straight line or an arc line which is radially and outwards bent along the metal pipe; the surface formed by the round platform generatrix of the self-anchoring baffle ring bin is an inner wall ring surface A, and the surface formed by the round platform waist line of the pushing baffle ring bin is an inner wall ring surface B.

Furthermore, the metal baffle ring A and the metal baffle ring B are provided with through holes or groove bodies, and the elastic support body A and the elastic support body B are detachably arranged in the through holes or the groove bodies respectively.

Furthermore, the locking part A and the locking part B are circumferentially symmetrical along the retaining ring positioning bulge.

Further, an outer anti-corrosion coating is coated on the outer wall of the pipe body, and the outer anti-corrosion coating is one of a wear-resistant coating, concrete or fiber cement; the inner wall of the pipe body is coated with an inner anti-corrosion coating, and the inner anti-corrosion coating is one of cement mortar, insulating paper or epoxy ceramic.

Furthermore, the distance between the convex end surface of the baffle ring positioning bulge and the outer surface of the socket in the socket assembling state is larger than the radial height of the convex ring extending from the pipe body and smaller than the radial setting height of the metal baffle ring A or the metal baffle ring B extending from the pipe body.

Further, protruding ring circumferential direction welds in the socket outside, protruding ring is greater than from the axial length of anchor ring storehouse extension body apart from the end side distance of socket.

Furthermore, the end of the socket is a socket end face, and a chamfer conical surface is arranged between the socket end face and the outer wall of the socket.

Furthermore, a leading-in surface is arranged on the end surface of the outer side of the bell mouth.

The utility model discloses the beneficial effect who obtains does: 1. the convex ring can axially move between the metal baffle ring A and the metal baffle ring B to realize bidirectional self-anchoring, so that the interface has certain axial telescopic capacity; 2. can be used for dragging and pushing construction simultaneously: during non-excavation construction, the dragging function can be adopted in the earlier stage, namely the metal baffle ring A is contacted with the inner wall ring surface A, and the pipeline dragging back at a certain distance can be completed; when the back dragging force is larger or approaches to a force value which can be borne by the pipe body, a pushing mechanism is added, and the long-distance trenchless laying of the socket metal pipeline can be realized by dragging the pipe body forwards and backwards; 3. due to the shape characteristics of the metal baffle ring A and the metal baffle ring B, the metal baffle ring can adapt to the ellipse of the socket or the socket and the casting tolerance within a certain range.

If the foundation where the pipeline is located is settled or earthquakes occur during operation, at the moment, the raised ring moves between the metal baffle ring A and the metal baffle ring B, or deflects at a certain angle, or the raised ring moves and the bell and spigot deflects at the same time, so that the safe operation of the pipeline can be guaranteed to the maximum extent.

Drawings

FIG. 1 is a schematic view of the socket type metal top-dragging integrated pipeline of the present invention;

FIG. 2 is an assembly view of the socket type metal top-dragging integrated pipe of the present invention;

FIG. 3 is a schematic structural view of a metal retainer ring A of the present invention;

FIG. 4 is a schematic view of the structure of the present invention when the drag force is applied;

FIG. 5 is a schematic structural view of the present invention when it is subjected to a jacking force;

FIG. 6 is a schematic view of the assembly of a nodular cast iron jacking pipe in the prior art;

FIG. 7 is a schematic view of a prior art ductile iron drag tube assembly;

FIG. 8 is a schematic cross-sectional view of a metal baffle ring A according to the present invention;

wherein 1 represents a socket, 2 represents a socket, 3 represents a pipe body, 4 represents a sealing rubber ring, 5 represents a raised ring, 6 represents a metal baffle ring A, 7 represents an elastic support body A, 8 represents a metal baffle ring B, 9 represents an elastic support body B, 10 represents a chamfered conical surface, 11 represents an outer anticorrosive coating, 12 represents an inner anticorrosive coating, 13 represents a socket end surface, 14 represents an outer end surface of the socket, 15 represents a lead-in surface, 16 represents an inner wall annular surface A, 17 represents a self-anchoring baffle ring bin, 18 represents a baffle ring positioning raised part, 19 represents a pushing baffle ring bin, 20 represents an inner wall annular surface B, 21 represents a sealing cavity, 22 represents a rubber ring positioning surface, and 23 represents a transition surface.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

As shown in fig. 1-5, a socket type metal pipeline with pushing and pulling functions simultaneously comprises a pipe body 3, a bell mouth 1 and a spigot 2, wherein a sealing cavity 21 is arranged in the bell mouth 1, a sealing rubber ring 4 is arranged in the sealing cavity 21, and the sealing cavity 21, the sealing rubber ring 4 and the spigot 2 in an assembly state are matched to form a sealing structure; a self-anchoring baffle ring bin 17 and a pushing baffle ring bin 19 are sequentially additionally arranged on the inner wall of the bell mouth 1 between the outer end face 14 of the bell mouth and the sealing cavity 21 from outside to inside, the section of the self-anchoring baffle ring bin 17 and the pushing baffle ring bin 19 cut along the axis of the pipe body 3 is approximately the section of the circular truncated cone cut along the axis of the pipe body 3, the self-anchoring baffle ring bin 17 and the pushing baffle ring bin 19 are arranged in a back-to-back manner along the axis direction of the pipe body 3, and baffle ring positioning bulges 18 which are continuously or discontinuously arranged along the circumferential direction of the inner side of the bell mouth 1 are arranged between the self-anchoring baffle ring bin 17 and the pushing baffle ring bin 19;

a locking component A is arranged in the self-anchoring baffle ring bin 17, and a locking component B is arranged in the pushing baffle ring bin 19; the outer wall of the socket 2 is provided with a circle of raised rings 5, the socket 2 is inserted into the socket 1 during assembly, the raised rings 5 are positioned between the locking component A and the locking component B, the raised rings 5 are matched with the locking component A and the locking component B which are embedded into the self-anchoring ring bin 17 and the pushing ring bin 19 to enable the socket 2 in an assembly state to be self-locked between the self-anchoring ring bin 17 and the pushing ring bin 19, the socket 2 is limited to be pulled out and inserted, and pushing force is transmitted through the raised rings 5 and the self-locking component B during pushing. The locking component A comprises an elastic support A7 and an arc-shaped metal retaining ring A6, and the locking component B comprises an elastic support B9 and an arc-shaped metal retaining ring B8; the arc-shaped metal baffle ring A6 and the arc-shaped metal baffle ring B8 are split splicing type annular structures; the deepest part of the self-anchoring baffle ring bin 17 is larger than the sum of the radial heights of the metal baffle ring A6 and the protruding ring 5 along the pipe body 3; the deepest part of the pushing baffle ring bin 19 is larger than the sum of the radial heights of the metal baffle ring B8 and the protruding ring 5 along the pipe body 3; the inner diameter of a circular ring which can be spliced by the metal baffle ring A6 and the metal baffle ring B8 is less than or equal to the outer diameter of the socket 2;

elastic support body A7 and from the cooperation of anchor baffle ring storehouse 17 inner wall provide and extend body 3 radial inside to the power of cramping of metal baffle ring A6, elastic support body B9 and the cooperation of pushing away baffle ring storehouse 19 inner wall provide and extend body 3 radial inside to the power of cramping of metal baffle ring B8 or through elastic support body A7 and elastic support body B9 with be connected each other between the baffle ring that metal baffle ring A6 and metal baffle ring B8 are adjacent two by two respectively, provide the power of cramping of the inward contraction of assembled whole baffle ring.

The generatrix of the self-anchoring baffle ring bin 17 and the pushing baffle ring bin 19 corresponding to the approximate circular truncated cone section cut along the axis of the pipe body 3 is a straight line or an arc line which is radially bent outwards along the metal pipe; the surface formed by the circular truncated cone generatrix of the self-anchoring baffle ring bin 17 is an inner wall ring surface A16, and the surface formed by the circular truncated cone waist line of the pushing baffle ring bin 19 is an inner wall ring surface B20. The metal retaining ring A6 and the metal retaining ring B8 are provided with through holes or groove bodies, and the elastic support body A7 and the elastic support body B9 are detachably arranged in the through holes or the groove bodies respectively. The locking part A and the locking part B are circumferentially symmetrical along the retaining ring positioning bulge 18.

The outer wall of the pipe body 3 is coated with an outer anti-corrosion coating 11, and the outer anti-corrosion coating 11 is one of a wear-resistant coating, concrete or fiber cement; the inner wall of the pipe body 3 is coated with an inner anti-corrosion coating 12, and the inner anti-corrosion coating 12 is one of cement mortar, insulating paper or epoxy ceramic.

The distance between the convex end surface of the retaining ring positioning bulge 18 and the outer surface of the spigot 2 in the socket assembling state is greater than the radial height of the bulge ring 5 along the pipe body 3 and less than the radial setting height of the metal retaining ring A6 or the metal retaining ring B8 along the pipe body 3. Protruding ring 5 circumference welds in the socket 2 outside, protruding ring 5 is greater than from the axial length of anchor ring storehouse 17 extension body 3 apart from 2 end side distances of socket. The terminal socket terminal surface 13 that is of socket 2, be equipped with chamfer conical surface 10 between socket terminal surface 13 and the 2 outer walls of socket. The end face 14 on the outer side of the socket is provided with a lead-in surface 15.

In the specific implementation: firstly, installing a sealing rubber ring 4 in a sealing cavity 21 of a metal pipeline bellmouth to be installed, and installing locking components in a self-anchoring baffle ring bin 17 and a pushing baffle ring bin 19 of the metal pipeline bellmouth; the socket 2 and the sealing rubber ring 4 are coated with lubricant, then the socket 2 of the pipe is inserted into the pipe socket 1 with the locking component installed, along with the insertion of the socket 2, the socket end face 13 will contact the baffle ring conical surface of the metal baffle ring A6, because the socket end face 13 is adapted to the conical surface of the baffle ring, the socket end face 13 will stably press the metal baffle ring A6, and the metal baffle ring A6 will press the elastic support body A7 closely attached to the metal baffle ring A6, the metal baffle ring A6 will move radially to make room for the bulge ring 5 to pass through the metal baffle ring A6, after the bulge ring 5 passes through the metal baffle ring A6, the metal baffle ring A6 will be pressed on the socket 2 again because the elastic support body A7 pressed before is restored to deform. When the pipeline socket 2 is completely inserted into the pipeline socket 1, namely the raised ring 5 is positioned between the metal retaining ring A6 and the metal retaining ring B8, in the installed pipeline, the elastic support A7 is matched with the inner wall of the self-anchoring retaining ring bin 17 to provide a radially inward hooping force of the extension pipe body 3 on the metal retaining ring A6, the elastic support B9 is matched with the inner wall of the pushing retaining ring bin 19 to provide a radially inward hooping force of the extension pipe body 3 on the metal retaining ring B8, or the elastic support A7 and the elastic support B9 are used for mutually connecting every two adjacent retaining rings of the metal retaining ring A6 and the metal retaining ring B8 to provide a inwards contracting hooping force of the assembled integral retaining ring.

The technical elements of the socket part comprise: the end face 14 of the outer side of the bell mouth extends to the transition face 23 through the leading-in face 15, a baffle ring positioning bulge 18 and a sealing cavity 21 are arranged between the leading-in face 15 and the transition face 23, an inner wall ring face A16 and a self-anchoring baffle ring bin 17 are arranged between the leading-in face 15 and the baffle ring positioning bulge 18, a pushing baffle ring bin 19 and an inner wall ring face B20 are arranged between the baffle ring positioning bulge 18 and the sealing cavity 21, and a rubber ring positioning face 22 is arranged between the sealing cavity 21 and the transition face 23.

The technical elements of the socket 2 part comprise: a chamfer conical surface 10 is arranged between the socket end surface 13 and the socket outer wall, and an annular bulge ring 5 is arranged on the socket outer wall.

Example 1

A top-dragging integrated nodular cast iron pipe is shown in figure 4, which is a schematic view of the top-dragging integrated nodular cast iron pipe, a self-locking part comprising an elastic supporting body A7 and a metal baffle ring A6 is arranged on a socket from an anchor bin 17, and the outer wall of a socket 2 is provided with an annular convex ring 5. The socket 2 of the nodular cast iron pipe on the right side is connected with a tractor, when the pipeline is pulled rightwards, the socket 1 is contacted with the raised ring 5 on the outer wall of the pipeline on the left side through the metal baffle ring A6, so that force is transmitted to the pipeline on the left side, the pipeline on the left side is also pulled and moved, and the like, and the transmission of the pulling force is formed.

As shown in fig. 5, when the traction force is too large or approaches the limit of the bearing capacity of the pipeline, the external pushing mechanism of the left pipeline bellmouth 1 is started, the left pipeline is pushed into the right pipe-jacking bellmouth 1 under the action of the external pushing mechanism, the thrust is transmitted to the right pipeline through the right metal baffle ring B8, and the rest is done so as to form the transmission of the pushing force.

The construction mode of the front dragging top and the rear dragging top can not only pass through long-distance barriers, but also reduce the construction cost, improve the construction efficiency, save the social cost and reduce the construction risk.

Because the interface socket 2 can stretch out and draw back and deflect, consequently, this pipeline can be fine when running into the situation such as ground subsides, earthquake, the change of adaptation ground, guarantees the safety of transport medium.

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 (10)

1. A socket type metal pipeline with pushing and pulling functions simultaneously comprises a pipe body (3), a bell mouth (1) and a spigot (2), wherein a sealing cavity (21) is arranged in the bell mouth (1), a sealing rubber ring (4) is arranged in the sealing cavity (21), and the sealing cavity (21), the sealing rubber ring (4) and the spigot (2) in an assembly state are matched to form a sealing structure; the method is characterized in that: a self-anchoring ring bin (17) and a pushing ring bin (19) are sequentially additionally arranged on the inner wall of the socket (1) between the outer end face (14) of the socket and the sealing cavity (21) from outside to inside, the section of the self-anchoring ring bin (17) and the pushing ring bin (19) cut along the axis of the pipe body (3) is approximate to the section of a circular truncated cone cut along the axis of the pipe body, the self-anchoring ring bin (17) and the pushing ring bin (19) are arranged in a back direction along the axis of the pipe body (3), and a ring locating protrusion (18) continuously or discontinuously arranged along the circumferential direction of the inner side of the socket (1) is arranged between the self-anchoring ring bin (17) and the pushing ring bin (19);

a locking component A is arranged in the self-anchoring baffle ring bin (17), and a locking component B is arranged in the pushing baffle ring bin (19); the outer wall of the socket (2) is provided with a circle of raised ring (5), the socket (2) is inserted into the socket (1) during assembly, the raised ring (5) is positioned between the locking component A and the locking component B, the raised ring (5) and the locking component A and the locking component B which are embedded into the self-anchoring retaining ring bin (17) and the pushing retaining ring bin (19) are matched to enable the socket (2) in an assembly state to be self-locked between the self-anchoring retaining ring bin (17) and the pushing retaining ring bin (19), the socket (2) is limited to be pulled out and inserted, and pushing force is transmitted with the self-locking component B through the raised ring (5) during pushing.

2. A female metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: the locking component A comprises an elastic support body A (7) and an arc-shaped metal baffle ring A (6), and the locking component B comprises an elastic support body B (9) and an arc-shaped metal baffle ring B (8); the metal baffle ring A (6) and the metal baffle ring B (8) are of split splicing type annular structures; the deepest part of the self-anchoring baffle ring bin (17) is larger than the sum of the radial heights of the metal baffle ring A (6) and the protruding ring (5) extending to the pipe body (3); the deepest part of the pushing baffle ring bin (19) is larger than the sum of the radial heights of the metal baffle ring B (8) and the protruding ring (5) along the pipe body (3); the inner diameter of a circular ring formed by splicing the metal baffle ring A (6) and the metal baffle ring B (8) is less than or equal to the outer diameter of the socket (2);

elastic support body A (7) and keep off the cooperation of ring storehouse (17) inner wall from the anchor and provide and prolong body (3) and radially inwards keep off the power of cramping of ring A (6) to the metal, elastic support body B (9) and top are kept off the cooperation of ring storehouse (19) inner wall and are provided and prolong body (3) and radially inwards keep off the power of cramping of ring B (8) to the metal, or keep off through elastic support body A (7) and elastic support body B (9) with the metal and keep off ring A (6) and metal and keep off and be connected each other between the ring B (8) two liang of adjacent fender separately, provide the power of cramping that the assembled whole fender ring inwards contracts.

3. A female metal pipeline with both pushing and pulling functions as claimed in claim 2, wherein: the generatrix of the self-anchoring baffle ring bin (17) and the pushing baffle ring bin (19) corresponding to the section which is cut along the axis of the pipe body (3) and is similar to a circular truncated cone is a straight line or an arc line which is bent outwards along the radial direction of the metal pipe; the surface formed by the round platform generatrix of the self-anchoring baffle ring bin (17) is an inner wall ring surface A (16), and the surface formed by the round platform waist line of the pushing baffle ring bin (19) is an inner wall ring surface B (20).

4. A female metal pipeline with both pushing and pulling functions as claimed in claim 2, wherein: the metal blocking ring A (6) and the metal blocking ring B (8) are provided with through holes or groove bodies, and the elastic supporting body A (7) and the elastic supporting body B (9) are detachably arranged in the through holes or the groove bodies respectively.

5. A female metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: the locking component A and the locking component B are circumferentially symmetrical along the retaining ring positioning bulge (18).

6. The socket type metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: the outer wall of the pipe body (3) is coated with an outer anti-corrosion coating (11), and the outer anti-corrosion coating (11) is one of a wear-resistant coating, concrete or fiber cement; the inner wall of the pipe body (3) is coated with an inner anti-corrosion coating (12), and the inner anti-corrosion coating (12) is one of cement mortar, insulating paper or epoxy ceramic.

7. A female metal pipeline with both pushing and pulling functions as claimed in claim 2, wherein: the distance between the convex end surface of the retaining ring positioning bulge (18) and the outer surface of the socket (2) in the bell and spigot assembling state is greater than the radial height of the pipe body (3) extended by the convex ring (5) and less than the radial setting height of the pipe body (3) extended by the metal retaining ring A (6) or the metal retaining ring B (8).

8. A female metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: protruding ring (5) circumference welds in socket (2) outside, protruding ring (5) are greater than from the axial length of anchor ring storehouse (17) extension body (3) apart from socket (2) distolateral distance.

9. A female metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: socket (2) end is socket terminal surface (13), be equipped with chamfer conical surface (10) between socket terminal surface (13) and socket (2) outer wall.

10. A female metal pipeline with both pushing and pulling functions as claimed in claim 1, wherein: the end face (14) at the outer side of the socket is provided with a leading-in face (15).

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