A butt joint structure of metal pipe head

Abstract

The utility model discloses a butt joint structure of a metal pipe head, comprising a stainless steel butt joint pipe, the inner wall of which is fixedly sleeved with the annular outer surface of a connected inner sleeve. The butt joint structure of the metal pipe head drives the conveying pipe to be tightly extruded into the interior of the stainless steel butt joint pipe by fastening the inner threaded sleeve to move the thread on the outer surface of the conveying pipe, and utilizes the displacement difference generated by the conical shape of the outer surface of the sealing elastic cone sleeve to push the sealing elastic cone sleeve to be deeply inserted into the interior of the conveying pipe, and extrude and seal the inner opening of the butt joint of the conveying pipe, and synchronously displaces the thread of the threaded pushing cylinder on the surface of the stainless steel butt joint pipe, drives the threaded pushing cylinder to move outward, utilizes the inner wall of the threaded pushing cylinder to extrude the conical outer surface of the plastic pressure cone cylinder, and extrudes the conical extrusion sealing soft cylinder through the deformation of the plastic pressure cone cylinder, so that the outer opening of the butt joint of the conveying pipe is sealed and extruded, thereby achieving a more reliable sealing effect at the butt joint of the two conveying pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of butt joint structures of metal pipe heads, in particular to a butt joint structure of metal pipe heads. Background Art

[0002] Stainless steel metal pipes are metal pipes for conveying liquids or materials. Stainless steel pipes can meet the advantages of safety, hygiene, health, and durability. At the same time, they eliminate the pollution problem of plastic pipes. The price is much cheaper than copper pipes. They can be safely, conveniently and reliably installed and constructed, and have high pressure-bearing capacity. They are commonly used environmentally friendly, green and energy-saving products for pipelines. At present, the existing butt joint sleeves for metal pipe heads are not very good in actual operation. It is often necessary to wrap waterproof tape around the outer tube of the threaded groove wall to prevent leakage. It is extremely inconvenient in actual use, and the installation sealing is difficult to control. Therefore, in response to the above problems, the present application invents a butt joint structure for metal pipe heads, which effectively improves the sealing of metal pipe butt joints. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a butt joint structure of a metal pipe head, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butt joint structure of a metal pipe head, comprising a stainless steel butt joint pipe, the inner wall of the stainless steel butt joint pipe is fixedly sleeved with the annular outer surface of the connecting inner sleeve, the inner wall of the connecting inner sleeve is fixedly sleeved with the outer surface of the sealing elastic cone sleeve, the inner wall of the sealing elastic cone sleeve is fixedly sleeved with the outer surface of the straight-through pipe, the two ends of the straight-through pipe are respectively inserted into the interior of two conveying pipes, the surfaces of the two ends of the sealing elastic cone sleeve are respectively pressed and contacted with the inner walls of the two conveying pipes, the two ends of the stainless steel butt joint pipe are fixedly connected with a plastic pressure cone cylinder, the side edge of the plastic pressure cone cylinder is provided with a plurality of grooves, and the surface of the stainless steel butt joint pipe is fixedly sleeved with the outer surface of the sealing elastic cone sleeve. A threaded groove is provided, and the surface of the stainless steel butt tube is threadedly sleeved with two threaded pushing cylinders, the side edges of the threaded pushing cylinders are in extrusion contact with the surface of the plastic pressure cone cylinder, and the side of the threaded pushing cylinder is fixedly connected with four linkage parts, and the four linkage parts are symmetrically distributed in a ring shape around the axis of the threaded pushing cylinder, and the other ends of the four linkage parts are fixedly connected with the side edges of the linkage ring disk, and the inner ring of the linkage ring disk is sleeved on the surface of the conveying pipe, and the side edge of the linkage ring disk away from the threaded pushing cylinder is rotatably connected with a fastening internal threaded sleeve, and the inner walls of the two fastening internal threaded sleeves are threadedly sleeved with the surfaces of the two conveying pipes, and the inner ring of the linkage ring disk is sleeved on the surface of the conveying pipe.

[0007] Preferably, the inner wall of the plastic pressure cone is fixedly sleeved with the surface of the conical extrusion sealing soft cylinder, the inner wall of the conical extrusion sealing soft cylinder is in extrusion contact with the surface of the conveying pipe, and the inner wall of the conical extrusion sealing soft cylinder is configured to be conical.

[0008] Preferably, a plastic sealing sleeve gasket is fixedly connected to the side surface of the linkage ring disc, and the inner ring of the plastic sealing sleeve gasket is sleeved on the surface of the conveying pipe.

[0009] Preferably, the side edge of the plastic sealing sleeve gasket is in extrusion contact with the side edge of the plastic pressure cone, and the outer surface of the plastic pressure cone is configured to be conical.

[0010] Preferably, the two threaded pushing cylinders are symmetrically distributed around the middle of the stainless steel butt tube, and the multiple grooves opened along the side of the plastic pressure cone cylinder are symmetrically distributed around the axis of the stainless steel butt tube.

[0011] (III) Beneficial effects

[0012] The utility model provides a butt joint structure of a metal pipe head, which has the following beneficial effects:

[0013] (1) The butt joint structure of the metal pipe head, through the arrangement of the stainless steel butt joint pipe, and the coordinated use of the connecting inner sleeve, the sealing elastic cone sleeve, the straight pipe, the plastic pressure cone cylinder, the threaded pushing cylinder, the conical extrusion sealing soft cylinder, the linkage piece, the linkage ring disk and the tightening inner threaded sleeve, plays the role of inserting the two conveying pipes into the interior of the stainless steel butt joint pipe respectively, so that the straight pipe is connected inside the two conveying pipes, and the tightening inner threaded sleeve is threadedly displaced on the outer surface of the conveying pipe, so that the conveying pipe is tightly extruded into the interior of the stainless steel butt joint pipe, and the sealing is utilized. The displacement difference caused by the conical shape of the outer surface of the elastic cone sleeve pushes the sealing elastic cone sleeve to be deeply inserted into the interior of the conveying pipe, and the inner mouth of the butt joint of the conveying pipe is squeezed and sealed, and the synchronous threaded pushing cylinder is threadedly displaced on the surface of the stainless steel butt joint pipe, which drives the threaded pushing cylinder to move outward, and the inner wall of the threaded pushing cylinder is used to extrude the conical outer surface of the plastic pressure cone cylinder, so that it is deformed through the plastic pressure cone cylinder to extrude the conical extrusion sealing soft cylinder, so that the outer mouth of the butt joint of the conveying pipe is sealed and squeezed, thereby achieving a more reliable sealing effect at the butt joint of the two conveying pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3It is a schematic diagram of the structural section of the utility model;

[0017] Figure 4 The utility model structure Figure 2 A magnified schematic diagram of point A;

[0018] Figure 5 The utility model structure Figure 3 An enlarged schematic diagram of point B;

[0019] Figure 6 The utility model structure Figure 1 An enlarged schematic diagram of point C;

[0020] Figure 7 The utility model structure Figure 5 An enlarged schematic diagram of point D;

[0021] Figure 8 This is a schematic diagram of the connection between the stainless steel butt pipe and the plastic pressure cone cylinder of the utility model;

[0022] Fig. 9 It is a side view of the structural plastic pressure cone cylinder of the utility model;

[0023] Fig.10 It is a schematic diagram of the structural sealing elastic cone sleeve of the utility model;

[0024] Fig.11 It is a cross-sectional schematic diagram of the conical extrusion sealing flexible cylinder of the utility model.

[0025] In the figure: 1. Stainless steel butt pipe; 2. Connecting inner sleeve; 3. Sealing elastic cone sleeve; 4. Straight pipe; 5. Delivery pipe; 6. Plastic pressure cone cylinder; 7. Threaded push cylinder; 8. Conical extrusion sealing soft cylinder; 9. Linkage part; 10. Linkage ring disk; 11. Tightening inner threaded sleeve; 12. Plastic sealing sleeve gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-11As shown, the utility model provides a technical solution: a butt joint structure of a metal pipe head, comprising a stainless steel butt joint pipe 1, the inner wall of the stainless steel butt joint pipe 1 is fixedly sleeved with the annular outer surface of a connecting inner sleeve 2, the inner wall of the connecting inner sleeve 2 is fixedly sleeved with the outer surface of a sealing elastic cone sleeve 3, the inner wall of the sealing elastic cone sleeve 3 is fixedly sleeved with the outer surface of a straight-through pipe 4, the two ends of the straight-through pipe 4 are respectively inserted into the interior of two conveying pipes 5, the surfaces of the two ends of the sealing elastic cone sleeve 3 are respectively pressed and contacted with the inner walls of the two conveying pipes 5, through the setting of the sealing elastic cone sleeve 3, the conveying pipe 5 is tightly pressed and pushed toward the interior of the stainless steel butt joint pipe 1, and the displacement difference caused by the cone shape of the outer surface of the sealing elastic cone sleeve 3 is used to push the sealing elastic cone sleeve 3 to be deeply inserted Into the interior of the delivery pipe 5, so as to achieve the effect of squeezing and sealing the inner mouth of the butt joint of the delivery pipe 5. Both ends of the stainless steel butt pipe 1 are fixedly connected with plastic pressure cones 6. The side edges of the plastic pressure cones 6 are provided with multiple grooves. The multiple grooves provided on the side edges of the plastic pressure cones 6 are respectively distributed in annular symmetry with the axis of the stainless steel butt pipe 1. The surface of the stainless steel butt pipe 1 is provided with threaded grooves. The surface of the stainless steel butt pipe 1 is threadedly sleeved with two threaded pushing cylinders 7. The two threaded pushing cylinders 7 are respectively symmetrically distributed in the middle of the stainless steel butt pipe 1. The side edges of the threaded pushing cylinders 7 are squeezed and contacted with the surface of the plastic pressure cone 6. The inner wall of the plastic pressure cone 6 is fixedly sleeved with the surface of the conical extrusion sealing soft cylinder 8. The inner wall of the conical extrusion sealing soft cylinder 8 is in extrusion contact with the surface of the conveying pipe 5. The inner wall of the conical extrusion sealing soft cylinder 8 is set to a conical cylinder shape. Through the setting of the conical extrusion sealing soft cylinder 8, the threaded pushing cylinder 7 is displaced toward the outside thread. The inner wall of the threaded pushing cylinder 7 is used to extrude the conical outer surface of the plastic pressure cone cylinder 6, so that it is deformed by the plastic pressure cone cylinder 6 to extrude the conical extrusion sealing soft cylinder 8, so that the outer mouth of the butt joint of the conveying pipe 5 is sealed and extruded, so that the butt joint sealing of the conveying pipe 5 is better. Four linkage parts 9 are fixedly connected to the side of the threaded pushing cylinder 7. The four linkage parts 9 are respectively distributed in a ring-shaped symmetrical manner with the axis of the threaded pushing cylinder 7. The other ends of the four linkage parts 9 are fixedly connected to the side edges of the linkage ring disk 10. The inner ring of the ring disk 10 is sleeved on the surface of the conveying pipe 5, and the edge of the side of the linkage ring disk 10 away from the threaded pushing cylinder 7 is rotatably connected to a fastening internal threaded sleeve 11. The inner walls of the two fastening internal threaded sleeves 11 are respectively threadedly sleeved with the surfaces of the two conveying pipes 5. The inner ring of the linkage ring disk 10 is sleeved on the surface of the conveying pipe 5, and the side of the linkage ring disk 10 is fixedly connected with a plastic sealing sleeve gasket 12. The inner ring of the plastic sealing sleeve gasket 12 is sleeved on the surface of the conveying pipe 5, and the side edge of the plastic sealing sleeve gasket 12 is squeezed and contacted with the side edge of the plastic pressure cone cylinder 6. The outer surface of the plastic pressure cone cylinder 6 is arranged in a cone shape. Through the arrangement of the plastic sealing sleeve gasket 12, the threaded contact between the fastening internal threaded sleeve 11 and the conveying pipe 5 is more sealed.

[0028] When in use, first insert the two delivery pipes 5 into the fastening internal threaded sleeves 11 on both sides of the stainless steel butt-jointed pipe 1 respectively, and rotate the fastening internal threaded sleeves 11, and use the thread displacement principle of the fastening internal threaded sleeves 11 and the surface of the delivery pipes 5 to pull the delivery pipes 5 on both sides inward, so that when the port of the straight-through pipe 4 is just inserted into the inside of the delivery pipe 5, then synchronously rotate the threaded pushing cylinder 7 and the fastening internal threaded sleeves 11 on the corresponding side, so that the threaded displacement is made to the outside on the surface of the stainless steel butt-jointed pipe 1 through the threaded pushing cylinder 7, and the fastening internal threaded sleeves 11 are synchronously threadedly displaced in the same direction on the surface of the delivery pipe 5, and while continuing to push the delivery pipe 5 into the inside of the stainless steel butt-jointed pipe 1, use The inner wall of the threaded pushing cylinder 7 is used to extrude the conical outer surface of the plastic pressure cone cylinder 6, so that the plastic pressure cone cylinder 6 is deformed to extrude the conical extrusion sealing soft cylinder 8, so that the outer mouth of the docking point of the delivery pipe 5 is sealed and extruded, and the delivery pipe 5 is tightly extruded into the inside of the stainless steel docking pipe 1. The displacement difference caused by the conical shape of the outer surface of the sealing elastic cone sleeve 3 is used to push the sealing elastic cone sleeve 3 to be deeply inserted into the interior of the delivery pipe 5. By squeezing and sealing the inner mouth of the docking point of the delivery pipe 5, the purpose of making the two delivery pipes 5 more tightly and reliably sealed when docking is achieved. At the same time, the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0029] In summary, the butt joint structure of the metal pipe head, through the arrangement of the stainless steel butt joint pipe 1, and the coordinated use of the connecting inner sleeve 2, the sealing elastic cone sleeve 3, the straight pipe 4, the plastic pressure cone cylinder 6, the threaded pushing cylinder 7, the conical extrusion sealing soft cylinder 8, the linkage member 9, the linkage ring disc 10 and the fastening inner threaded sleeve 11, plays a role in that the two conveying pipes 5 are respectively inserted into the interior of the stainless steel butt joint pipe 1, so that the straight pipe 4 is connected inside the two conveying pipes 5, and the outer surface of the conveying pipe 5 is threadedly displaced by the fastening inner threaded sleeve 11, so that the conveying pipe 5 is driven to be tightly extruded into the interior of the stainless steel butt joint pipe 1, By utilizing the displacement difference caused by the conical shape of the outer surface of the sealing elastic conical sleeve 3, the sealing elastic conical sleeve 3 is pushed to be deeply inserted into the interior of the conveying pipe 5, and the inner mouth of the butt joint of the conveying pipe 5 is squeezed and sealed, and the threaded pushing cylinder 7 is synchronously displaced on the surface of the stainless steel butt joint pipe 1, so as to drive the threaded pushing cylinder 7 to move outward, and the inner wall of the threaded pushing cylinder 7 is utilized to extrude the conical outer surface of the plastic pressure cone cylinder 6, so that the conical extrusion sealing soft cylinder 8 is squeezed through the deformation of the plastic pressure cone cylinder 6, so that the outer mouth of the butt joint of the conveying pipe 5 is sealed and squeezed, thereby achieving a more reliable sealing effect at the butt joint of the two conveying pipes 5.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A butt joint structure of a metal pipe head, comprising a stainless steel butt joint pipe (1), characterized in that: The inner wall of the stainless steel butt-jointed pipe (1) is fixedly sleeved with the annular outer surface of the connecting inner sleeve (2), the inner wall of the connecting inner sleeve (2) is fixedly sleeved with the outer surface of the sealing elastic cone sleeve (3), the inner wall of the sealing elastic cone sleeve (3) is fixedly sleeved with the outer surface of the straight-through pipe (4), the two ends of the straight-through pipe (4) are respectively inserted into the interior of the two conveying pipes (5), the surfaces of the two ends of the sealing elastic cone sleeve (3) are respectively pressed and contacted with the inner walls of the two conveying pipes (5), the two ends of the stainless steel butt-jointed pipe (1) are fixedly connected with a plastic pressure cone (6), the side edge of the plastic pressure cone (6) is provided with a plurality of grooves, the surface of the stainless steel butt-jointed pipe (1) is provided with a threaded groove, the surface of the stainless steel butt-jointed pipe (1) is threadedly sleeved with two threaded push-pull holes The side edge of the threaded pushing cylinder (7) is in extrusion contact with the surface of the plastic pressure cone cylinder (6); the side of the threaded pushing cylinder (7) is fixedly connected with four linkage members (9); the four linkage members (9) are respectively distributed in a ring-shaped symmetry with the axis of the threaded pushing cylinder (7); the other ends of the four linkage members (9) are fixedly connected with the side edge of a linkage ring disk (10); the inner ring of the linkage ring disk (10) is sleeved on the surface of the conveying pipe (5); the side edge of the linkage ring disk (10) away from the threaded pushing cylinder (7) is rotatably connected with a fastening internal threaded sleeve (11); the inner walls of the two fastening internal threaded sleeves (11) are respectively threadedly sleeved with the surfaces of the two conveying pipes (5); the inner ring of the linkage ring disk (10) is sleeved on the surface of the conveying pipe (5).

2. The butt joint structure of a metal pipe head according to claim 1, characterized in that: The inner wall of the plastic pressure cone (6) is fixedly sleeved with the surface of the conical extrusion sealing soft cylinder (8), the inner wall of the conical extrusion sealing soft cylinder (8) is in extrusion contact with the surface of the conveying pipe (5), and the inner wall of the conical extrusion sealing soft cylinder (8) is arranged in a conical cylinder shape.

3. The butt joint structure of a metal pipe head according to claim 1, characterized in that: A plastic sealing sleeve gasket (12) is fixedly connected to the side surface of the linkage ring disc (10), and the inner ring of the plastic sealing sleeve gasket (12) is sleeved on the surface of the conveying pipe (5).

4. A butt joint structure of a metal pipe head according to claim 3, characterized in that: The side edge of the plastic sealing sleeve gasket (12) is in extrusion contact with the side edge of the plastic pressure cone (6), and the outer surface of the plastic pressure cone (6) is arranged in a cone shape.

5. The butt joint structure of a metal pipe head according to claim 1, characterized in that: The two threaded pushing cylinders (7) are respectively distributed in a left-right symmetrical manner in the middle of the stainless steel butt joint tube (1), and the multiple grooves opened along the side of the plastic pressure cone cylinder (6) are respectively distributed in a ring-shaped symmetrical manner around the axis of the stainless steel butt joint tube (1).

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