A seamless stainless steel pipe that is easy to butt joint

By using internal and external threaded connections and auxiliary docking components, the cumbersome docking process of traditional seamless stainless steel pipes has been solved, achieving a fast, stable, and sealed docking effect.

CN224533793UActive Publication Date: 2026-07-21BAOFENG STEEL GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOFENG STEEL GRP
Filing Date
2025-07-21
Publication Date
2026-07-21

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Abstract

The utility model discloses an easily butt joint's seamless stainless steel pipe, including along left and right direction symmetrical placement and mutually the adhesion of stainless steel pipe body, one of the stainless steel pipe body is fixed with one end and inserts in the butt joint pipe of another stainless steel pipe body, be provided with external thread on the butt joint pipe, be provided with the supplementary butt joint subassembly on the stainless steel pipe body. The utility model discloses the structure design of supplementary butt joint subassembly can be set up, can butt joint two groups of stainless steel pipe body fast, can effectively avoid stainless steel pipe body to be affected butt joint sealing property after butt joint, can further butt joint place of stainless steel pipe body to multiple point reinforcement, improve stainless steel pipe body butt joint stability and sealing property, whole butt joint process is very convenient, need not carry external butt joint part and the tool of adaptation, make two groups of stainless steel pipe body can easily butt joint.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipes, and in particular to a seamless stainless steel pipe that is easy to connect. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. In addition, it is lighter in weight while maintaining the same bending and torsional strength, so it is also widely used in the manufacture of mechanical parts and engineering structures. In actual operation, we have found that the butt welding process of traditional seamless stainless steel pipes is too cumbersome, requiring external auxiliary butt welding components and suitable tools, which is very troublesome and greatly reduces the butt welding efficiency of seamless stainless steel pipes, causing great obstacles and troubles to the butt welding work.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This invention proposes a seamless stainless steel pipe that is easy to connect, solving the aforementioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: a seamless stainless steel pipe that is easy to connect includes stainless steel pipe bodies that are symmetrically placed and fit together in the left-right direction. One of the stainless steel pipe bodies has a connecting pipe with one end inserted into another stainless steel pipe body. The connecting pipe has an external thread. The other stainless steel pipe body has an internal thread that mates with the external thread. An auxiliary connection component is provided on the stainless steel pipe body.

[0006] The present invention provides an easy-to-connect seamless stainless steel pipe as described above. Further, the auxiliary connection assembly includes a fixed base symmetrically fixed to the left side of one of the stainless steel pipe bodies along the vertical direction. Each fixed base has a rotatable locking plate. The other stainless steel pipe body has a locking seat fixed to it, which engages with the locking plate. A positioning frame is slidably mounted on the locking plate. A first groove is provided in the fixed base for inserting one end of the positioning frame. An anti-slip frame, one end of which is fixed to the locking plate, is inserted into the positioning frame. A spring is wound around each anti-slip frame, with both ends of the spring fixed to the protruding end of the anti-slip frame and the positioning frame. A side frame is fixed to the other end of the positioning frame. A movable frame is slidably mounted on each locking plate. A insertion bracket is fixed to the bottom of the inner side of the movable frame. A second groove is provided on the right side of the locking seat for inserting the insertion bracket. A guide plate is rotatably mounted on the left side of the side frame, with one end of the guide plate rotatably mounted on the movable frame.

[0007] The present invention provides a seamless stainless steel pipe that is easy to connect as described above. Further, each set of anti-slip frames has an L-shaped side plate fixed on the right side of the protruding end, which is used in conjunction with the positioning frame.

[0008] The present invention provides a seamless stainless steel pipe that is easy to connect as described above. Further, the clamping plate has an overall L-shaped structure, and the bent end of the clamping plate is clamped to the left side of the clamping seat.

[0009] The present invention provides a seamless stainless steel tube that is easy to connect as described above. Furthermore, each of the positioning frames has a disc-shaped structure at one end near the side frame.

[0010] The present invention provides a seamless stainless steel pipe that is easy to connect as described above. Further, each group of positioning frames is provided with through holes for inserting anti-slip frames. Multiple sets of strip-shaped channels are evenly provided in each group of through holes. Multiple sets of clips that cooperate with the strip-shaped channels are evenly fixed on the anti-slip frame.

[0011] The present invention provides a seamless stainless steel tube that is easy to connect as described above. Furthermore, each set of side frames has a fixing rod fixed at the end away from the positioning frame.

[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model, by setting an auxiliary docking component, can quickly dock two sets of stainless steel pipe bodies. After docking, a multi-locking structure can be added to the two sets of stainless steel pipe bodies to effectively prevent the stainless steel pipe bodies from being rotated by external forces and affecting the docking seal. Furthermore, the docking point of the stainless steel pipe bodies can be reinforced at multiple points to improve the docking stability and sealing performance. The entire docking process is very convenient and does not require external docking components or matching tools, making it easy to dock two sets of stainless steel pipe bodies.

[0013] 2. By setting an L-shaped side plate, this utility model can limit the positioning frame, which can effectively prevent the positioning frame from moving too high, causing the guide plate to move synchronously and from an inclined position to a vertical position, thereby affecting the normal driving of the moving frame by the guide plate.

[0014] 3. By limiting the shape of the clamping plate and the position of the bent end, this utility model enables the clamping plate to be stably clamped to the clamping seat, thereby further limiting the left and right positions of the two sets of stainless steel pipe bodies, and further improving the stability and sealing of the two sets of stainless steel pipe bodies when they are joined.

[0015] 4. This utility model limits the shape of one end of the positioning frame to provide sufficient installation space for the spring and avoids affecting the normal extension and contraction of the spring.

[0016] 5. By setting through holes, strip-shaped channels, and locking strips, this utility model can slide and limit the anti-slip frame, thereby improving the stability of the positioning frame when it moves.

[0017] 6. By setting a fixing rod, this utility model makes it convenient for users to move the side frame, thereby allowing the positions of the positioning frame and the insertion frame to be changed synchronously, which can improve the assembly efficiency between the card plate and the card seat. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is an exploded view of the overall structure of this utility model; Figure 4 This is a partial bottom sectional view of the structure of this utility model; Figure 5 This is a partial exploded view of the structure of the auxiliary docking component of this utility model.

[0020] In the diagram: 1. Stainless steel pipe body; 2. Connecting pipe; 3. External thread; 4. Internal thread; 5. Fixing seat; 6. Card seat; 7. Card plate; 8. Positioning frame; 9. First groove; 10. Anti-slip frame; 11. Through hole; 12. Spring; 13. L-shaped side plate; 14. Side frame; 15. Guide plate; 16. Moving frame; 17. Insertion bracket; 18. Second groove. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0022] A seamless stainless steel pipe that is easy to connect includes stainless steel pipe bodies 1 symmetrically placed and fitted together in the left-right direction. A connecting pipe 2, one end of which is inserted into the other stainless steel pipe body 1, is fixed inside one of the stainless steel pipe bodies 1. The connecting pipe 2 has an external thread 3. The other stainless steel pipe body 1 has an internal thread 4 that mates with the external thread 3. An auxiliary connection assembly is provided on the stainless steel pipe bodies 1. The auxiliary connection assembly includes fixing seats 5 symmetrically fixed to the left side of one of the stainless steel pipe bodies 1 in the up-down direction. Each fixing seat 5 has a rotatable clamping plate 7. A clamping seat 6, which engages with the clamping plate 7, is fixed on the other stainless steel pipe body 1. A positioning frame 8 is slidably mounted on the plate 7. A first groove 9 is provided in the fixed base 5 for inserting one end of the positioning frame 8. An anti-slip frame 10 is inserted on the positioning frame 8, with one end fixed to the plate 7. A spring 12 is wound around each anti-slip frame 10. The two ends of the spring 12 are fixed to the protruding end of the anti-slip frame 10 and the positioning frame 8. A side frame 14 is fixed to the other end of the positioning frame 8. A movable frame 16 is slidably mounted on each plate 7. An insert 17 is fixed to the bottom of the inner side of the movable frame 16. A second groove 18 is provided on the right side of the plate 6 for inserting the insert 17. A guide plate 15 is rotatably mounted on the left side of the side frame 14, and one end of the guide plate 15 is rotatably mounted on the movable frame 16.

[0023] Specifically, this utility model, by setting up an auxiliary docking component and cooperating with the docking pipe 2, external thread 3 and internal thread 4, can quickly dock two sets of stainless steel pipe bodies 1. The design of spring 12, positioning frame 8, insertion frame 17, moving frame 16 and guide plate 15, together with the first groove 9 and the second groove 18, can form a multi-locking structure for the locking plate 7, which can effectively prevent the stainless steel pipe body 1 from being rotated by external force and affecting the docking seal. It can also further reinforce the docking point of the stainless steel pipe body 1 at multiple points, improve the docking stability and sealing of the stainless steel pipe body 1. The whole docking process is very convenient and does not require carrying external docking components and matching tools, making it easy to dock two sets of stainless steel pipe bodies 1.

[0024] Each anti-slip frame 10 has an L-shaped side plate 13 fixed on the right side of its protruding end, which is used in conjunction with the positioning frame 8.

[0025] Specifically, the design of the L-shaped side plate 13 can limit the positioning frame 8, effectively preventing the positioning frame 8 from moving too high, which would cause the guide plate 15 to move synchronously and from an inclined position to a vertical position, thus affecting the normal driving of the guide plate 15 on the moving frame 16.

[0026] The card plate 7 has an overall L-shaped structure, and the bent end of the card plate 7 is engaged with the left side of the card holder 6.

[0027] Specifically, the shape and bending end position of the clamping plate 7 are defined to ensure that the clamping plate 7 can be stably engaged with the clamping seat 6, and the left and right positions of the two sets of stainless steel pipe bodies 1 are further defined, which further improves the stability and sealing effect when the two sets of stainless steel pipe bodies 1 are connected.

[0028] Each positioning frame 8 has a disc-shaped structure at one end near the side frame 14.

[0029] Specifically, limiting the shape of one end of the positioning frame 8 provides sufficient installation space for the spring 12, avoiding affecting the normal extension and retraction of the spring 12.

[0030] Each positioning frame 8 has through holes 11 for inserting the anti-slip frame 10. Multiple strip-shaped channels are evenly provided in each through hole 11. Multiple sets of clips that cooperate with the strip-shaped channels are evenly fixed on the anti-slip frame 10.

[0031] Specifically, the design of the through hole 11, the strip-shaped guide, and the locking strip can limit the sliding of the anti-slip frame 10, improving the stability of the positioning frame 8 when it moves.

[0032] Each side frame 14 has a fixing rod fixed at the end away from the positioning frame 8.

[0033] Specifically, the design of the fixing rod allows the user to move the side frame 14, thereby improving the assembly efficiency between the card plate 7 and the card seat 6 with the assistance of the positioning frame 8 and the insertion frame 17.

[0034] The specific usage process is as follows: In the initial state, the clamping plate 7 is in a vertical position, and one end of the positioning frame 8 is clamped between the clamping plate 7 and the fixed seat 5, limiting the clamping plate 7. At this time, the clamping plates 7, which are symmetrically arranged vertically, can form a handle structure. The user then inserts the connecting pipe 2, which is fixed on one of the stainless steel pipe bodies 1, into the other stainless steel pipe body 1 and rotates one of the stainless steel pipe bodies 1. At this time, the external thread 3 and the internal thread 4 are threaded together to initially position the two sets of stainless steel pipe bodies 1 until the two sets of stainless steel pipe bodies 1 are in contact. At this time, the left and right fixed seats 5 and clamping seats 6 are located on the same horizontal axis. Then, the fixed rod is moved outward, which can drive the positioning frame 8 and the guide plate 15 to move synchronously, thereby driving the movement of the fixed rod. The moving frame 16 and the insert bracket 17 move synchronously until the positioning frame 8 contacts the L-shaped side plate 13, thereby compressing the spring 12. At this point, one end of the positioning frame 8 will no longer interfere with the rotation of the locking plate 7. The user then rotates the locking plate 7 and engages it with the locking seat 6. The elastic rebound of the spring 12 drives the positioning frame 8 and the insert bracket 17 to reset and insert them into the corresponding first groove 9 and second groove 18, thus limiting the position of the locking plate 7. This allows for multi-point locking and positioning of the two sets of connected stainless steel pipe bodies 1, improving the stability and sealing of the connected stainless steel pipe bodies 1. This utility model, by setting an auxiliary docking component and cooperating with the docking pipe 2, external thread 3, and internal thread 4, enables the rapid docking of two sets of stainless steel pipe bodies 1. Furthermore, the design of spring 12, positioning frame 8, insert frame 17, moving frame 16, and guide plate 15, in conjunction with the first groove 9 and the second groove 18, forms a multi-locking structure for the locking plate 7. This effectively prevents the stainless steel pipe body 1 from being rotated by external forces, thus affecting the sealing performance of the joint. It also further reinforces the joint of the stainless steel pipe body 1 at multiple points, improving the stability and sealing performance of the joint. The entire jointing process is very convenient and requires no external jointing components or matching tools, making it easy to join two sets of stainless steel pipe bodies 1. The design of the L-shaped side plate 13 limits the positioning frame 8, effectively preventing it from moving excessively upwards. This causes the guide plate 15 to move synchronously from an inclined position to a vertical position, thereby... The guide plate 15 affects the normal driving of the moving frame 16; the limitation of the shape and bending end position of the clamping plate 7 allows the clamping plate 7 to be stably engaged with the clamping seat 6, and further limits the left and right positions of the two sets of stainless steel tube bodies 1, which further improves the stability and sealing effect when the two sets of stainless steel tube bodies 1 are connected; the limitation of the shape of one end of the positioning frame 8 can provide sufficient installation position for the spring 12 and avoid affecting the normal extension and retraction operation of the spring 12; the design of the through hole 11, the strip-shaped locking channel and the locking strip can limit the sliding of the anti-slip frame 10, which improves the stability of the positioning frame 8 when it moves; the design of the fixing rod allows the user to move the side frame 14, thereby improving the assembly efficiency between the clamping plate 7 and the clamping seat 6 with the assistance of the positioning frame 8 and the insert frame 17.

[0035] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seamless stainless steel pipe that is easy to connect, comprising stainless steel pipe bodies (1) symmetrically placed and fitted together in the left-right direction, characterized in that: One of the stainless steel pipe bodies (1) has a connecting pipe (2) with one end inserted into another stainless steel pipe body (1). The connecting pipe (2) has an external thread (3). The other stainless steel pipe body (1) has an internal thread (4) that mates with the external thread (3). The stainless steel pipe body (1) has an auxiliary docking assembly.

2. The seamless stainless steel pipe that is easy to connect according to claim 1, characterized in that: The auxiliary docking assembly includes a fixing seat (5) symmetrically fixed to the left side of one of the stainless steel tube bodies (1) in the vertical direction. Each fixing seat (5) is rotatably equipped with a clamping plate (7). Another stainless steel tube body (1) is fixed with a clamping seat (6) that engages with the clamping plate (7). A positioning frame (8) is slidably arranged on the clamping plate (7). A first groove (9) is provided in the fixing seat (5) for inserting one end of the positioning frame (8). An anti-slip frame (10) with one end fixed to the clamping plate (7) is inserted into the positioning frame (8). Each set of anti-slip frames (10) Springs (12) are wound around each of the card plates (7). The two ends of the springs (12) are fixed to the protruding end of the anti-slip frame (10) and the positioning frame (8). The other end of the positioning frame (8) is fixed to a side frame (14). A movable frame (16) is slidably arranged on each set of card plates (7). A plug (17) is fixed to the bottom of the inner side of the movable frame (16). A second groove (18) for the plug (17) to be inserted is opened on the right side of the card seat (6). A guide plate (15) is rotatably installed on the left side of the side frame (14), and one end of the guide plate (15) is rotatably installed on the movable frame (16).

3. The seamless stainless steel pipe that is easy to connect according to claim 2, characterized in that: Each anti-slip frame (10) has an L-shaped side plate (13) fixed on the right side of its protruding end, which is used in conjunction with the positioning frame (8).

4. A seamless stainless steel pipe that is easy to connect according to claim 2, characterized in that: The card plate (7) has an overall L-shaped structure, and the bent end of the card plate (7) is engaged with the left side of the card seat (6).

5. A seamless stainless steel pipe that is easy to connect according to claim 2, characterized in that: Each of the positioning frames (8) has a disc-shaped structure at one end near the side frame (14).

6. A seamless stainless steel pipe that is easy to connect according to claim 2, characterized in that: Each of the positioning frames (8) is provided with through holes (11) for inserting the anti-slip frame (10). Multiple sets of strip-shaped channels are evenly provided in each of the through holes (11). Multiple sets of clips that cooperate with the strip-shaped channels are evenly fixed on the anti-slip frame (10).

7. A seamless stainless steel pipe that is easy to connect according to claim 2, characterized in that: Each side frame (14) of each group is fixed with a fixing rod at the end away from the positioning frame (8).