CN114060635A - Pipeline welded structure and pipeline subassembly - Google Patents
Pipeline welded structure and pipeline subassembly Download PDFInfo
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- CN114060635A CN114060635A CN202111348751.9A CN202111348751A CN114060635A CN 114060635 A CN114060635 A CN 114060635A CN 202111348751 A CN202111348751 A CN 202111348751A CN 114060635 A CN114060635 A CN 114060635A
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- 238000003466 welding Methods 0.000 claims abstract description 96
- 238000005520 cutting process Methods 0.000 claims abstract description 72
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 15
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 6
- 239000012768 molten material Substances 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
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- General Engineering & Computer Science (AREA)
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- Branch Pipes, Bends, And The Like (AREA)
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Abstract
The invention provides a pipeline welding structure and a pipeline assembly, and relates to the technical field of pipeline connection. The pipe welding structure comprises a first pipe and a second pipe; the first pipeline comprises a first connecting end, an inner cutting surface inclined towards the inside of the pipe is arranged between the first connecting end and the inner wall of the first pipeline, and an outer cutting surface inclined towards the outside of the pipe is arranged between the first connecting end and the outer wall of the first pipeline; the second pipeline comprises a second connecting end, the second connecting end is provided with an annular slot extending along the circumferential direction of the second connecting end, and the inner walls of the two sides of the slot incline towards the inside of the slot from the slot opening to the slot bottom; the slot is used for accommodating the first connecting end, and the inner walls of the two sides of the slot can be respectively abutted against the inner cutting surface and the outer cutting surface. When the first pipeline and the second pipeline of the pipeline welding structure are mutually extruded and rotated to be welded, the edge of the first connecting end and the inner wall of the slot are mutually extruded and welded, and the inner cutting surface and the outer cutting surface are mutually extruded and welded with the inner wall of the slot respectively, so that the welding strength can be effectively improved.
Description
Technical Field
The invention relates to the technical field of pipeline connection, in particular to a pipeline welding structure and a pipeline assembly.
Background
With the development of the pipeline industry, the pipeline shape is more and more complex. For pipelines with complex shapes, such as bent pipelines, one-time injection molding can not be usually carried out when the pipelines are manufactured, and bent pipes and straight pipes are required to be welded for the second time.
When the material of pipeline is rigid plastic, utilize the heat that produces when two adjacent pipelines extrude each other rotatory to melt the welding muscle of pipeline terminal surface usually, wait to melt the material cooling and can accomplish the welding. Specifically, as shown in fig. 1 and 2, an annular welding rib 2 is arranged on an end surface of one of the two adjacent pipelines 1, an annular groove 3 is arranged on an end surface of the other pipeline 1, when welding is performed, a top surface of the welding rib 2 abuts against a groove bottom of the groove 3, and when the pipelines 1 are extruded and rotated with each other, the welding rib 2 is melted and filled in the groove 3 and a gap between the end surfaces of the two pipelines 1.
However, the cross section of the existing welding rib 2 is rectangular, and in the welding process, only the top surface of the welding rib 2 is in contact with the bottom of the groove 3. Because need apply pressure along pipeline 1's axial in the welding process so that extrude each other between two adjacent pipelines 1, therefore extrude each other and weld between the top surface of only welding muscle 2 and the 3 tank bottoms of recess, the position that lies in outside 2 top surfaces of welding muscle of pipeline 1 terminal surface then need rely on welding muscle 2 to melt the material and be connected with another pipeline 1 to lead to welding strength not enough between two adjacent pipelines 1, the performance of resisting the pull-out force is relatively poor.
Disclosure of Invention
The invention aims to provide a pipeline welding structure and a pipeline assembly, which are used for relieving the technical problems that when two adjacent pipelines are welded in the prior art, pressure needs to be applied along the axial direction of the pipelines so that the two adjacent pipelines are mutually extruded, only the top surface of a welding rib and the bottom of a groove of the other pipeline are mutually extruded and welded on the pipeline provided with the welding rib, and the end surface of the pipeline, which is positioned outside the top surface of the welding rib, needs to be connected with the other pipeline by virtue of a welding rib melting material, so that the welding strength between the two adjacent pipelines is insufficient, and the pull-out force resistance performance is poor.
In a first aspect, the present invention provides a welded structure of pipes, comprising a first pipe and a second pipe;
the first pipeline comprises a first connecting end, an inner cutting surface which inclines towards the inside of the pipe is arranged between the first connecting end and the inner wall of the first pipeline, and an outer cutting surface which inclines towards the outside of the pipe is arranged between the first connecting end and the outer wall of the first pipeline;
the second pipeline comprises a second connecting end, the second connecting end is provided with an annular slot extending along the circumferential direction of the second pipeline, and the inner walls of two sides of the slot are inclined from the slot opening to the slot bottom towards the direction close to the inside of the slot; the slot is used for accommodating the first connecting end, and the inner wall of one side of the slot can be abutted against the inner cutting face, and the inner wall of the other side of the slot can be abutted against the outer cutting face.
In an alternative embodiment, a width of the first connection end surface in the radial direction of the first pipe is greater than a width of the groove bottom of the insertion groove in the radial direction of the second pipe.
In an alternative embodiment, a vertical distance between the side edge of the external cutting surface and the other side edge of the first connecting end is not less than a groove depth of the slot.
In an alternative embodiment, the open side of the slot facing away from the inside of the second pipe is an outer open side, and a first gap is provided between the outer open side and the side of the second connection end facing away from the inside of the second pipe.
In an alternative embodiment, a vertical distance between the side edge of the first connection end and the other side edge of the inner cutting surface is not less than a groove depth of the slot.
In an alternative embodiment, the open side of the slot adjacent to the inside of the second pipe is an inner open side, and a second space is provided between the inner open side and the side of the second connection end adjacent to the inside of the second pipe.
In an alternative embodiment, an end face of the second connection end at the second interval is provided with a first flash groove extending in a circumferential direction of the second pipe.
In an alternative embodiment, the inner wall of the first pipe is provided with an annular bulge extending along the circumferential direction of the first pipe, and the bulge is positioned at the side edge of the inner cutting surface far away from the first connecting end;
the bulge is provided with a second flash tank with an opening facing the first flash tank.
In an optional embodiment, a minimum included angle between the extension surfaces of the external cutting surface and the internal cutting surface is a first included angle, a minimum included angle between the extension surfaces of the inner walls on both sides of the slot is a second included angle, and the first included angle is larger than the second included angle.
In a second aspect, the present invention provides a pipe assembly comprising the pipe welding structure of any one of the preceding embodiments.
The invention provides a pipeline welding structure which comprises a first pipeline and a second pipeline; the first pipeline comprises a first connecting end, an inner cutting surface which inclines towards the inside of the pipe is arranged between the first connecting end and the inner wall of the first pipeline, and an outer cutting surface which inclines towards the outside of the pipe is arranged between the first connecting end and the outer wall of the first pipeline; the second pipeline comprises a second connecting end, the second connecting end is provided with an annular slot extending along the circumferential direction of the second pipeline, and the inner walls of two sides of the slot are inclined from the slot opening to the slot bottom towards the direction close to the inside of the slot; the slot is used for accommodating the first connecting end, and the inner wall of one side of the slot can be abutted against the inner cutting face, and the inner wall of the other side of the slot can be abutted against the outer cutting face. When the first pipeline and the second pipeline in the pipeline welding structure are welded, the first connecting end of the first pipeline is inserted into the slot of the second pipeline, and then the first pipeline and the second pipeline are mutually extruded along the direction perpendicular to the first connecting end and the second connecting end, so that the first pipeline and the second pipeline rotate relatively. In the extrusion and rotation processes, the edge of the first connecting end and the inner wall of the slot are extruded and rotated mutually and generate heat to melt so as to realize welding, and the inner cutting face and the outer cutting face can be extruded and rotated mutually and generate heat to melt so as to realize welding respectively with the inner wall of the slot. And, along with the process of melting in the welding process, the first pipeline and the second pipeline are gradually close to each other, and in the process, the melting material is continuously generated between the edge of the first connecting end and the inner wall of the slot and is welded with each other. Compared with the existing two adjacent pipelines, the top surface of the welding rib of one pipeline and the groove of the other pipeline are mutually extruded and welded, the mutual extrusion surface and the welding surface between the first pipeline and the second pipeline are wider, and the extrusion force is more multidirectional, so that the welding structure of the pipeline of the embodiment has stronger welding strength and better performance of resisting pull-out force. In addition, the melting material melted by heating in the welding process of the first pipeline and the second pipeline can also overflow into the gap between the first connecting end and the second connecting end, so that the welding strength between the first pipeline and the second pipeline is further enhanced.
Compared with the prior art, when the first pipeline and the second pipeline in the pipeline welding structure provided by the invention are mutually extruded and rotated for welding, not only can the edge of the first connecting end be mutually extruded and welded with the inner wall of the slot, but also the inner cutting surface and the outer cutting surface can be mutually extruded and welded with the inner wall of the slot respectively, so that the welding strength can be effectively improved.
The pipe assembly provided by the invention comprises the pipe welding structure, so that the pipe assembly provided by the invention has the same beneficial effects as the pipe welding structure.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a cross-sectional view of a conventional welding joint between two adjacent pipes;
FIG. 2 is a partial cross-sectional view of a conventional welding joint between two adjacent pipes;
FIG. 3 is a schematic structural diagram of a first pipeline and a second pipeline provided by an embodiment of the invention;
FIG. 4 is a cross-sectional view of a welded structure of pipes according to an embodiment of the present invention;
fig. 5 is a partial sectional view of a welded structure of pipes according to an embodiment of the present invention.
Icon: 1-pipeline; 2-welding ribs; 3-a groove; 4-a first conduit; 40-a first connection end; 41-inner cutting surface; 42-externally cutting the noodles; 43-a projection; 430-second flash tank; 5-a second conduit; 50-a second connection end; 51-a slot; 510-the outer open side; 511-inner open side; 52-first flash tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Example (b):
as shown in fig. 3, 4 and 5, the pipe welding structure provided by the present embodiment includes a first pipe 4 and a second pipe 5; the first pipeline 4 comprises a first connecting end 40, an inner cutting surface 41 inclined towards the inside of the pipe is arranged between the first connecting end 40 and the inner wall of the first pipeline 4, and an outer cutting surface 42 inclined towards the outside of the pipe is arranged between the first connecting end 40 and the outer wall of the first pipeline 4; the second pipeline 5 comprises a second connecting end 50, the second connecting end 50 is provided with an annular slot 51 extending along the circumferential direction of the second pipeline 5, and the inner walls of two sides of the slot 51 are inclined from the notch to the bottom of the slot towards the direction close to the inside of the slot; the slot 51 is used for accommodating the first connecting end 40, and one inner wall of the slot 51 can abut against the inner cutting surface 41, and the other inner wall can abut against the outer cutting surface 42.
The inner cutting surface 41 and the outer cutting surface 42 are both annular and extend along the circumferential direction of the first pipe 4 in order to be matched with the inner wall of the slot 51.
When welding the first pipe 4 and the second pipe 5 in the pipe welding structure of the present embodiment, the first connecting end 40 of the first pipe 4 is inserted into the slot 51 of the second pipe 5, and then the first pipe 4 and the second pipe 5 are pressed against each other along a direction perpendicular to the first connecting end 40 and the second connecting end 50, so that the first pipe 4 and the second pipe 5 rotate relatively. In the processes of extrusion and rotation, not only the edge of the first connection end 40 and the inner wall of the slot 51 are extruded and rotated mutually and heat is generated to melt so as to realize welding, but also the inner cutting surface 41 and the outer cutting surface 42 respectively extrude and rotate mutually with the inner wall of the slot 51 and heat is generated to melt so as to realize welding. In addition, as the melting process proceeds during the welding process, the first pipe 4 and the second pipe 5 gradually approach each other, and during this process, melted materials are continuously generated between the edge of the first connection end 40 and the inner wall of the insertion groove 51 and are welded to each other. Compared with the prior art that the top surface of the welding rib 2 of one pipeline 1 and the groove 3 of the other pipeline 1 are mutually extruded and welded between the two adjacent pipelines 1, the mutual extrusion surface and the welding surface between the first pipeline 4 and the second pipeline 5 are wider, and the extrusion force is more multidirectional, so that the welding structure of the pipeline of the embodiment has stronger welding strength and better performance of resisting pull-out force.
In addition, the melted material melted by heat during the welding of the first pipe 4 and the second pipe 5 may also overflow into the gap between the first connection end 40 and the second connection end 50 to further enhance the welding strength between the first pipe 4 and the second pipe 5.
Compared with the prior art, when the first pipeline 4 and the second pipeline 5 in the pipeline welding structure provided by the embodiment are mutually extruded and rotated to be welded, not only the edge of the first connecting end 40 and the inner wall of the slot 51 are mutually extruded and welded, but also the inner cutting surface 41 and the outer cutting surface 42 are mutually extruded and welded with the inner wall of the slot 51 respectively, so that the welding strength can be effectively improved.
In this embodiment, both the material of the first pipeline 4 and the material of the second pipeline 5 may be hard materials, and preferably, both the material of the first pipeline 4 and the material of the second pipeline 5 are hard plastics. When the first pipeline 4 and the second pipeline 5 are welded, other auxiliary welding equipment such as a welding gun and a welding wire is not needed, the contact surface between the first pipeline 4 and the second pipeline 5 can generate heat and melt through extrusion and rotation, and the welding can be completed after the molten material is cooled.
It should be noted that, in the welding process, not only the welding strength can be improved, but also the inner cutting surface 41, the outer cutting surface 42 and the inner wall of the slot 51 are matched with each other to guide the plugging process between the first connecting end 40 and the slot 51, and to limit the first pipeline 4 and the second pipeline 5, so as to prevent the first pipeline 4 and the second pipeline 5 from deviating in the welding process, so that the connection and positioning between the first pipeline 4 and the second pipeline 5 can be more accurate, and the welding convenience and the welding accuracy between the first pipeline 4 and the second pipeline 5 can be effectively improved.
In addition, the inner cutting surface 41, the outer cutting surface 42 and the inner wall of the slot 51 are matched with each other, so that the air tightness between the first pipeline 4 and the second pipeline 5 can be effectively improved.
Further, the width of the end surface of the first connecting end 40 along the radial direction of the first pipe 4 is greater than the width of the groove bottom of the slot 51 along the radial direction of the second pipe 5.
When the width of the end surface of the first connection end 40 is greater than the width of the groove bottom of the slot 51, a space may be provided between the end surface of the first connection end 40 and the groove bottom of the slot 51, the space may accommodate a melting material to provide an overflow space for the melting material, and the melting material in the space may realize connection between the end surface of the first connection end 40 and the groove bottom of the slot 51, so as to improve connection strength between the first pipeline 4 and the second pipeline 5.
In the present embodiment, the vertical distance between the side edge of the external cutting surface 42 and the other side edge of the first connecting end 40 is not less than the groove depth of the slot 51.
When the vertical distance between the two side edges of the external cutting surface 42 is not less than the depth of the slot 51, as shown in fig. 5, a recessed space is formed between the side edge of the external cutting surface 42 far away from the first connecting end 40 and the second connecting end 50, and the recessed space can accommodate melted materials overflowing from the internal wall of the slot 51 and the external cutting surface 42, so that the melted materials at the position can be prevented from being dispersed and being incapable of effectively connecting the outer side of the first pipeline 4 and the outer side of the second pipeline 5, and the attractiveness of the outer side of the connecting position of the first pipeline 4 and the second pipeline 5 can be effectively enhanced.
As shown in fig. 5, the opening side of the slot 51 away from the inside of the second pipe 5 is an outer opening side 510, and a first interval is formed between the outer opening side 510 and the side of the second connection end 50 away from the inside of the second pipe 5.
The first space serves to make the recessed space between the side of the outer cutting surface 42 remote from the first connecting end 40 and the face of the second connecting end 50 wider, so that more molten material can be accommodated, further preventing the molten material from protruding too far outside the first pipe 4 and the second pipe 5.
In the present embodiment, the vertical distance between the side edge of the first connection end 40 and the other side edge of the inner cutting surface 41 is not less than the groove depth of the slot 51.
When the vertical distance between the two side edges of the inner cutting surface 41 is not less than the depth of the slot 51, as shown in fig. 5, a recessed space is provided between the side edge of the inner cutting surface 41 far away from the first connection end 40 and the second connection end 50, and the recessed space can accommodate the melting material overflowing between the inner cutting surface 41 and the inner wall of the slot 51, so as to prevent the melting material at the position from being dispersed and unable to effectively connect the inner side of the first pipeline 4 and the inner side of the second pipeline 5, and prevent the melting material at the position from polluting the inner side of the connection position of the first pipeline 4 and the second pipeline 5.
Further, the opening side of the slot 51 close to the inside of the second pipe 5 is an inner opening side 511, and a second interval is formed between the inner opening side 511 and the side of the second connection end 50 close to the inside of the second pipe 5.
The second space is used to make the recessed space between the side of the inner cutting surface 41 away from the first connecting end 40 and the second connecting end 50 wider, so that more molten material can be accommodated, and further the molten material at the position can be prevented from contaminating the inner side of the joint of the first pipe 4 and the second pipe 5.
As shown in fig. 5, the end surface of the second connection end 50 at the second interval is provided with a first flash groove 52 extending in the circumferential direction of the second pipe 5.
The first flash groove 52 can further accommodate the melted material overflowing between the collecting inner cutting surface 41 and the inner wall of the slot 51, thereby further preventing the melted material from polluting the inner side of the joint of the first pipeline 4 and the second pipeline 5.
Further, the inner wall of the first pipe 4 is provided with an annular protruding portion 43 extending along the circumferential direction of the first pipe 4, and the protruding portion 43 is located at the side edge of the inner cutting surface 41 far away from the first connection end 40; the projection 43 is provided with a second flash 430 opening toward the first flash 52.
The protrusion 43 is used to form a second flash groove 430, and the second flash groove 430 can cooperate with the first flash groove 52 to effectively accommodate the melted material overflowing between the inner cutting surface 41 and the inner wall of the slot 51, so as to effectively prevent the melted material from polluting the inner side of the joint of the first pipeline 4 and the second pipeline 5.
As shown in fig. 5, in the axial direction of the first pipe 4, the projection 43 is located between the first connection end 40 and the side edge of the external cutting surface 42 remote from the first connection end 40; the inner opening side 511 of the socket 51 is located between the outer opening side 510 of the socket 51 and the groove bottom in the axial direction of the second duct 5.
The presence of the projection 43 between the first connection end 40 and the aforementioned side edge of the external chamfer 42 and the presence of the internal open side 511 of the socket 51 between the external open side 510 of the socket 51 and the bottom of the socket makes it easier for the space formed between the first flash channel 52 and the second flash channel 430 to receive and collect the melted material that overflows between the internal chamfer 41 and the internal wall of the socket 51.
In the present embodiment, the minimum included angle between the extending surfaces of the external cutting surface 42 and the internal cutting surface 41 is a first included angle, the minimum included angle between the extending surfaces of the inner walls on both sides of the slot 51 is a second included angle, and the first included angle is larger than the second included angle.
The first included angle is larger than the second included angle, so that when the first pipeline 4 and the second pipeline 5 are close to each other in the welding process, the edge of the first connecting end 40 is easier to extrude and weld with the inner wall of the groove 3, more molten materials can be generated, and the welding strength between the first pipeline 4 and the second pipeline 5 can be effectively improved.
In practical application, specific angle values of the first included angle and the second included angle are not limited, and can be selected according to the welding strength requirement of the pipeline welding structure. The higher the weld strength requirement, the greater the angle value of the first included angle may be.
In summary, the pipe welding structure of the present embodiment has the following advantages:
1. not only the edge of the first connecting end 40 and the inner wall of the slot 51 are mutually extruded, but also the inner cutting surface 41 and the outer cutting surface 42 are respectively mutually extruded with the inner wall of the slot 51, so that three-direction welding force can be realized, and the welding strength can be effectively improved;
2. the inner cutting surface 41, the outer cutting surface 42 and the inner wall of the groove 3 are matched, so that the positioning accuracy between the first pipeline 4 and the second pipeline 5 can be improved during welding, and the welding effect is effectively guaranteed;
3. the air tightness between the first pipeline 4 and the second pipeline 5 is better after welding;
4. the shearing force at the welding position between the first pipeline 4 and the second pipeline 5 is larger than that at the welding position of the existing pipeline 1, and the welding strength between the first pipeline 4 and the second pipeline 5 is stronger;
5. the inner cutting surface 41, the outer cutting surface 42 and the inner wall of the groove 3 are matched, so that welding debugging in the welding process is easier, the working hours can be effectively saved, and the production efficiency is improved.
The present embodiment further provides a pipe assembly including the pipe welding structure, so that the same technical problems can be solved by the pipe assembly provided by the present embodiment and the pipe welding structure, and the same technical effects can be achieved, the pipe assembly of the present embodiment can also utilize the edge of the first connecting end 40 and the inner wall of the slot 51 to be extruded and welded with each other, and utilize the inner cutting surface 41 and the outer cutting surface 42 to be extruded and welded with the inner wall of the slot 51 respectively when the first pipe 4 and the second pipe 5 are extruded and rotated with each other to be welded, so as to effectively improve the welding strength.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A pipe welding structure, characterized by comprising a first pipe (4) and a second pipe (5);
the first pipeline (4) comprises a first connecting end (40), an inner cutting surface (41) which inclines towards the inside of the pipeline is arranged between the first connecting end (40) and the inner wall of the first pipeline (4), and an outer cutting surface (42) which inclines towards the outside of the pipeline is arranged between the first connecting end (40) and the outer wall of the first pipeline (4);
the second pipeline (5) comprises a second connecting end (50), the second connecting end (50) is provided with an annular insertion groove (51) extending along the circumferential direction of the second pipeline (5), and the inner walls of two sides of the insertion groove (51) are inclined from the groove opening to the groove bottom towards the direction close to the inside of the groove; the slot (51) is used for accommodating the first connecting end (40), and the inner wall of one side of the slot (51) can be abutted against the inner cutting surface (41), and the inner wall of the other side can be abutted against the outer cutting surface (42).
2. The pipe welding structure according to claim 1, wherein a width of the end surface of the first connection end (40) in a radial direction of the first pipe (4) is larger than a width of the groove bottom of the insertion groove (51) in a radial direction of the second pipe (5).
3. The pipe welding structure according to claim 2, wherein a vertical distance between a side edge of the outer cutting surface (42) and the other side edge of the first connecting end (40) is not smaller than a groove depth of the insertion groove (51).
4. A pipe welding construction according to claim 3, wherein the open side of the socket (51) facing away from the inside of the second pipe (5) is an outer open side (510), the outer open side (510) having a first spacing from the side of the second connection end (50) facing away from the inside of the second pipe (5).
5. The pipe welding structure according to claim 2, wherein a vertical distance between a side edge of the first connection end (40) and the other side edge of the inner cutting surface (41) is not less than a groove depth of the insertion groove (51).
6. The pipe welding structure according to claim 5, wherein the open side of the socket (51) inside the second pipe (5) is an inner open side (511), and the inner open side (511) has a second spacing from a side of the second connection end (50) inside the second pipe (5).
7. The pipe welding structure according to claim 6, wherein an end face of the second connection end (50) at the second interval is provided with a first flash (52) extending in a circumferential direction of the second pipe (5).
8. The pipe welding structure according to claim 7, wherein the inner wall of the first pipe (4) is provided with an annular projection (43) extending in the circumferential direction of the first pipe (4), and the projection (43) is located at a side edge of the inner cutting surface (41) away from the first connection end (40);
the projection (43) is provided with a second flash (430) opening toward the first flash (52).
9. The pipe welding structure according to any one of claims 1 to 8, wherein a minimum angle between the extension surfaces of the outer cutting surface (42) and the inner cutting surface (41) is a first angle, and a minimum angle between the extension surfaces of the inner walls on both sides of the slot (51) is a second angle, and the first angle is larger than the second angle.
10. A pipe assembly comprising the pipe welding structure of any one of claims 1 to 9.
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| CN202111348751.9A CN114060635B (en) | 2021-11-15 | 2021-11-15 | Pipeline welded structure and pipeline assembly |
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| CN202111348751.9A CN114060635B (en) | 2021-11-15 | 2021-11-15 | Pipeline welded structure and pipeline assembly |
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| CN114060635A true CN114060635A (en) | 2022-02-18 |
| CN114060635B CN114060635B (en) | 2023-11-03 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949895A (en) * | 1984-01-31 | 1990-08-21 | Sumitomo Light Metal Industries, Ltd. | Process of fixing internally titanium-lined doubled-walled tubing structure to titanium tube sheet |
| US20040145183A1 (en) * | 2001-04-20 | 2004-07-29 | Wasmuth Ernst A | Connecting element for pipes and method for welding a connecting element onto the end of a pipe |
| US20060087448A1 (en) * | 2002-07-18 | 2006-04-27 | Den Boer Johannis J | Marking of pipe joints |
| US9067279B1 (en) * | 2014-04-01 | 2015-06-30 | King Fahd University Of Petroleum And Minerals | Apparatus for joint sealing using tube expansion and friction welding |
| US20160039043A1 (en) * | 2014-08-06 | 2016-02-11 | Rolls-Royce Plc | Rotary friction welding |
| EP3379126A1 (en) * | 2017-03-20 | 2018-09-26 | Veritas Ag | Connecting device with a conduit connection |
| CN213929899U (en) * | 2020-09-30 | 2021-08-10 | 上海凯科管业科技股份有限公司 | Bent pipe, straight pipe and pipeline system |
| CN213929902U (en) * | 2020-09-30 | 2021-08-10 | 上海凯科管业科技股份有限公司 | Bent pipe and pipeline system |
-
2021
- 2021-11-15 CN CN202111348751.9A patent/CN114060635B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949895A (en) * | 1984-01-31 | 1990-08-21 | Sumitomo Light Metal Industries, Ltd. | Process of fixing internally titanium-lined doubled-walled tubing structure to titanium tube sheet |
| US20040145183A1 (en) * | 2001-04-20 | 2004-07-29 | Wasmuth Ernst A | Connecting element for pipes and method for welding a connecting element onto the end of a pipe |
| US20060087448A1 (en) * | 2002-07-18 | 2006-04-27 | Den Boer Johannis J | Marking of pipe joints |
| US9067279B1 (en) * | 2014-04-01 | 2015-06-30 | King Fahd University Of Petroleum And Minerals | Apparatus for joint sealing using tube expansion and friction welding |
| US20160039043A1 (en) * | 2014-08-06 | 2016-02-11 | Rolls-Royce Plc | Rotary friction welding |
| EP3379126A1 (en) * | 2017-03-20 | 2018-09-26 | Veritas Ag | Connecting device with a conduit connection |
| CN213929899U (en) * | 2020-09-30 | 2021-08-10 | 上海凯科管业科技股份有限公司 | Bent pipe, straight pipe and pipeline system |
| CN213929902U (en) * | 2020-09-30 | 2021-08-10 | 上海凯科管业科技股份有限公司 | Bent pipe and pipeline system |
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|---|---|
| CN114060635B (en) | 2023-11-03 |
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