A stainless steel pipe which is convenient for butting steel pipes

Abstract

The utility model relates to stainless steel pipe technical field especially discloses a kind of stainless steel pipes of butt joint steel pipe for facilitating, including female pipe and sub-pipe, and female pipe and sub-pipe are equipped with butt joint mechanism, butt joint mechanism can be pre-connected to female pipe and sub-pipe with thread type, butt joint mechanism includes recess, recess is opened in the inner wall of sub-pipe, by setting butt joint mechanism, staff picks up sub-pipe and aligns rotation with recess to the convex groove outside of female pipe, make first butt joint thread and second butt joint thread occur thread engagement, so that the pre-connection of female pipe and sub-pipe with thread type can be realized, effectively avoid the deviation misregistration in butt joint process, improve the coaxiality and sealing property of connection, simultaneously, thread engagement structure can disperse connection stress, prevent component damage caused by excessive local stress, simplify the butt joint operation process of female pipe and sub-pipe, improve assembly efficiency, and optimize the position of second butt joint thread and first butt joint thread in recess and convex groove, can further speed up assembly speed.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, and in particular to a stainless steel pipe that facilitates the connection of steel pipes. Background Technology

[0002] Stainless steel pipes are hollow tubular components made from stainless steel (such as 304, 316, etc.) through rolling, welding, or seamless processing.

[0003] A search of Chinese patent publication number "CN223330335U" reveals "A quick-connect steel pipe rod". This steel pipe rod uses a rotating plate to rotate a threaded column inside a threaded hole, causing the threaded column to lower a limiting plate. The limiting plate then engages a second locking block in a top slot, facilitating the quick installation and fixing of the first and second steel pipe rods. The operation is simple and convenient.

[0004] Based on the above search and existing technology findings, the above patent has certain defects: when the steel pipe pole is used, its docking structure is relatively complex, which can easily lead to collisions during placement or transportation, causing damage to its docking structure and making it inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a stainless steel pipe that facilitates the connection of steel pipes, thus solving the technical problem of inconvenient use of existing steel pipes. (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A stainless steel pipe for easy connection of steel pipes, comprising a mother pipe and a daughter pipe. Preferably, the mother pipe and the daughter pipe are provided with a docking mechanism, which can perform threaded pre-connection of the mother pipe and the daughter pipe.

[0006] The docking mechanism includes a groove formed on the inner wall of the sub-tube. A first docking thread is fitted inside the groove and is located at the lower end of the groove. A convex groove is formed on the circumferential surface of the mother tube. The groove and the convex groove are adapted to each other. An outer ring is provided on the outer side of the convex groove. A second docking thread is fitted on the circumferential surface of the outer ring and is located at the lower end of the outer ring. The second docking thread and the first docking thread are threadedly installed. When the operator picks up the sub-tube, the groove of the sub-tube is fitted onto the outside of the convex groove of the mother tube and aligned and rotated, so that the first docking thread and the second docking thread engage. Thus, the threaded pre-connection of the mother tube and the sub-tube is completed through the docking mechanism.

[0007] Preferably, the mother tube is provided with a splicing mechanism, which can assemble the docking mechanism on the mother tube; The splicing mechanism includes slots, and multiple slots are formed through the circumferential surface of the convex groove. Multiple locking strips are fixedly installed on the inner side of the outer ring. The locking strips engage with the slots. In use, the operator first uses the locking strips on the outer ring to engage with the slots. Through the engagement of the locking strips and the slots, the assembly of the docking mechanism on the mother tube is completed.

[0008] (III) Beneficial Effects Firstly, by setting up a docking mechanism, the worker picks up the daughter tube, places the groove onto the outside of the convex groove of the mother tube, aligns and rotates it, so that the first docking thread and the second docking thread engage, thereby realizing the threaded pre-connection of the mother tube and the daughter tube. This effectively avoids misalignment during docking, improves the coaxiality and sealing of the connection, and at the same time, the threaded engagement structure can disperse the connection stress, prevent excessive local stress from causing damage to the components. It simplifies the docking operation process between the mother tube and the daughter tube, improves assembly efficiency, and optimizes the position of the second docking thread and the first docking thread in the groove and convex groove, which can further speed up the assembly process.

[0009] Secondly, by setting up a splicing mechanism, the snap-fit ​​between the card strip and the card slot can achieve the positioning of the outer ring, ensuring that it can be installed on the basis of the threaded connection. This splicing mechanism can be added to avoid the problem of the structure on the outside of the groove being damaged by external force and unable to transmit power. In addition, the splicing structure facilitates the individual replacement and maintenance of components, reducing the cost of later use. Attached Figure Description

[0010] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a combined structural diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the image; Figure 4 This is a cross-sectional view of the sub-tube of this utility model; Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the image. Legend: 11. Mother tube; 12. Daughter tube; 13. Groove; 14. First mating thread; 15. Raised groove; 16. Outer ring; 17. Second mating thread; 18. Slot; 19. Locking strip. Detailed Implementation

[0011] This application provides a stainless steel pipe that facilitates the connection of steel pipes, effectively solving the technical problem of inconvenient use of existing steel pipes. By setting up a connection mechanism, the operator picks up the daughter pipe, places the groove onto the outside of the convex groove of the mother pipe, aligns and rotates it, so that the first and second connection threads engage, thereby realizing the threaded pre-connection of the mother pipe and the daughter pipe. This effectively avoids misalignment during the connection process, improves the coaxiality and sealing of the connection, and the threaded engagement structure can disperse the connection stress, preventing excessive local stress from damaging the components. This simplifies the connection process between the mother pipe and the daughter pipe, improves assembly efficiency, and optimizes the position of the second and first connection threads in the groove and convex groove, which can further speed up the assembly process. In addition, by setting up a splicing mechanism, the snap-fit ​​of the clip and the slot can realize the positioning of the outer ring, ensuring that it can be installed on the basis of the threaded connection. This splicing mechanism can be added separately to avoid the problem of the structure outside the convex groove being damaged by external force and unable to transmit power. Moreover, the splicing structure facilitates the individual replacement and maintenance of components, reducing the later use cost. Example

[0012] like Figure 1 - Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem of inconvenience in using existing steel pipes. The overall idea is as follows: In view of the problems existing in the prior art, the present invention provides a stainless steel pipe that is easy to connect with steel pipes, including a mother pipe 11 and a daughter pipe 12.

[0013] The mother pipe 11 and the daughter pipe 12 are provided with a docking mechanism. The docking mechanism can perform a threaded pre-connection between the mother pipe 11 and the daughter pipe 12. The docking mechanism includes a groove 13, which is opened in the inner wall of the daughter pipe 12. A first docking thread 14 is sleeved inside the groove 13. The first docking thread 14 is sleeved at the end of the groove 13 near the lower side. A protrusion 15 is opened on the circumferential surface of the mother pipe 11. The groove 13 is adapted to the protrusion 15. An outer ring 16 is provided on the outer side of the protrusion 15. A second docking thread 17 is sleeved on the circumferential surface of the outer ring 16. The second docking thread 17 is sleeved at the end of the outer ring 16 near the lower side. The second docking thread 17 and the first docking thread 14 are threadedly installed. By setting up a docking mechanism, the worker picks up the daughter tube 12, fits the groove 13 onto the outside of the protrusion 15 of the mother tube 11, aligns and rotates it, so that the first docking thread 14 and the second docking thread 17 engage, thereby realizing the threaded pre-connection of the mother tube 11 and the daughter tube 12. This effectively avoids misalignment during docking, improves the coaxiality and sealing of the connection, and the threaded engagement structure can disperse the connection stress, prevent excessive local stress from damaging the components. It simplifies the docking operation process of the mother tube 11 and the daughter tube 12, improves assembly efficiency, and optimizes the position of the second docking thread 17 and the first docking thread 14 in the groove 13 and the protrusion 15, which can further speed up the assembly process.

[0014] The mother tube 11 is provided with a splicing mechanism, which can assemble the docking mechanism on the mother tube 11. The splicing mechanism includes a slot 18. Multiple slots 18 are opened through the circumferential surface of the protrusion 15. Multiple clips 19 are fixedly installed on the inner side of the outer ring 16. The clips 19 are engaged with the slots 18. By setting up a splicing mechanism, the snap-fit ​​between the clip 19 and the slot 18 can achieve the positioning of the outer ring 16, ensuring that it can be installed on the basis of the threaded connection. This splicing mechanism can be added to avoid the problem of the structure on the outside of the protrusion 15 being damaged by external force and unable to transmit power. In addition, the splicing structure facilitates the individual replacement and maintenance of components, reducing the cost of later use.

[0015] Working principle: In use, the staff can first use the clip 19 on the outer ring 16 to insert the clip 19 into the slot 18. Then the staff can pick up the sub-tube 12, put the groove 13 of the sub-tube 12 onto the outside of the protrusion 15 of the mother tube 11, align and rotate it so that the first mating thread 14 and the second mating thread 17 engage, thereby completing the mating.

[0016] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and the obvious variations or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A stainless steel pipe for easy connection of steel pipes, comprising a mother pipe (11) and a daughter pipe (12), characterized in that: The mother pipe (11) and the daughter pipe (12) are provided with a docking mechanism, which can perform threaded pre-connection of the mother pipe (11) and the daughter pipe (12); The mother tube (11) is provided with a splicing mechanism, which can assemble the docking mechanism on the mother tube (11).

2. The stainless steel pipe for easy connection of steel pipes as described in claim 1, characterized in that, The docking mechanism includes a groove (13); The groove (13) is formed on the inner wall of the sub-tube (12).

3. A stainless steel pipe for easy connection of steel pipes as described in claim 2, characterized in that, The groove (13) is fitted with a first mating thread (14); The first mating thread (14) is fitted onto the end of the groove (13) near the lower side.

4. A stainless steel pipe for easy connection of steel pipes as described in claim 3, characterized in that, The circumferential surface of the mother tube (11) is provided with a groove (15), and the groove (13) is adapted to the groove (15); The groove (15) has an outer ring (16) on its outer side.

5. A stainless steel pipe for easy connection of steel pipes as described in claim 4, characterized in that, The outer ring (16) is provided with a second mating thread (17) on its circumferential surface. The second mating thread (17) is provided at the end of the outer ring (16) near the lower side. The second mating thread (17) is threadedly installed with the first mating thread (14).

6. A stainless steel pipe for easy connection of steel pipes as described in claim 4, characterized in that, The splicing mechanism includes slots (18), and multiple slots (18) are provided through the circumferential surface of the protrusion (15). Among them, multiple clips (19) are fixedly installed on the inner side of the outer ring (16), and the clips (19) are engaged with the slots (18).

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