Stainless steel pipe with splicing structure

Abstract

The utility model discloses a stainless steel pipe with a splicing structure, which relates to the technical field of steel pipes, and comprises a first pipeline and a second pipeline, the end parts of the first pipeline and the second pipeline are attached to each other, and the outer side of one end, close to the first pipeline, of the second pipeline is fixedly connected with a connecting sleeve which is annularly distributed; the end, close to the second pipeline, of the first pipeline is located in the connecting sleeve. According to the stainless steel pipe with the splicing structure, after the first pipeline and the second pipeline are installed, the first outer sealing ring and the second outer sealing groove are connected to form a sealing structure, and the first outer sealing groove and the second outer sealing ring are connected to form a sealing structure; the inner sealing strip and the inner sealing groove are mutually connected to form a sealing structure which is located at the butt joint of the first pipeline and the second pipeline, and other sealing structures are located on the outer sides of the first pipeline and the second pipeline, so that connection at the butt joint of the first pipeline and the second pipeline is tighter. And meanwhile, the butt joint of the first pipeline and the second pipeline is protected in a reinforced mode through the rotating sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a stainless steel pipe with a splicing structure. Background Art

[0002] Stainless steel pipes with spliced ​​structures generally refer to piping systems in which multiple stainless steel pipe sections are connected together by welding, flange connection or other mechanical connection methods.

[0003] When multiple stainless steel pipe sections are connected together, the stainless steel pipe joints are generally more fragile in the pipeline system, and external contaminant solutions enter the interior of the steel pipe through the gaps in the steel pipe joints.

[0004] In order to overcome the above-mentioned defects, a Chinese patent of the prior art (publication number: CN221525872U) discloses a splicable steel pipe, which is provided with a swivel on the outside of the slot. The swivel can shield the slot to prevent rainwater from entering the inside of the steel pipe body through the slot, prevent rainwater from deteriorating in the steel pipe body, and reduce the possibility of rust on the steel pipe body. A sealing ring is provided to seal the gap between the swivel and the sleeve to improve the rainproof effect.

[0005] The above-mentioned prior art realizes protection of the connection by setting an external structure at the connection of the steel pipe. In actual use, the connection of the stainless steel pipe is not strengthened relative to other positions, which easily leads to functional damage of the connection of the stainless steel pipe. Utility Model Content

[0006] The utility model aims to provide a stainless steel pipe with a splicing structure to solve the problem in the above-mentioned background technology that the connection of the stainless steel pipe is not strengthened relative to other positions, which easily leads to functional damage of the connection of the stainless steel pipe.

[0007] To achieve the above object, the utility model provides the following technical solution: a stainless steel pipe with a splicing structure, comprising a first pipe and a second pipe, the ends of the first pipe and the second pipe are fitted to each other, and an annularly distributed connecting sleeve is fixedly connected to the outer side of one end of the second pipe close to the first pipe, and the end of the first pipe close to the second pipe is located inside the connecting sleeve;

[0008] A first limiting ring is fixedly connected to the outside of the first pipe, and a side of the first limiting ring close to the second pipe is fixedly connected to positioning strips distributed in a ring shape and at equal intervals, and the positioning strips are fixedly connected to the outside of the first pipe, and an end of the positioning strip away from the first limiting ring is fixedly connected to a clamping block, and the clamping block is set to a wedge-shaped structure, the clamping block is fixedly connected to the outside of the first pipe, and an inner sealing groove is provided at one end of the first pipe close to the second pipe.

[0009] Preferably, a sliding ring is slidably connected to the outer side of the first pipe, and an external thread is provided on the outer side of the sliding ring. The side of the sliding ring close to the second pipe is fixedly connected to mounting blocks equidistantly distributed in a ring shape, and a positioning groove is provided on the inner side of each mounting block.

[0010] Preferably, the positioning groove is slidably connected to the outside of the positioning strip, and the end of the sliding ring close to the second pipe is fixedly connected to the first outer sealing ring, and the first outer sealing ring is located outside the mounting block.

[0011] Preferably, a second limiting ring is fixedly connected to the outer side of the second pipe, and a first outer sealing groove is provided at one end of the connecting sleeve close to the second limiting ring, and a rotating sleeve is rotatably connected to the outer side of the second pipe, and the rotating sleeve is located between the outer side of the connecting sleeve and the second limiting ring.

[0012] Preferably, an internal thread is provided on the inner side of the rotating sleeve, and the inner side of the rotating sleeve is threadedly connected to the outer side of the sliding ring through the internal thread and the external thread on the outer side of the sliding ring. The end of the rotating sleeve away from the connecting sleeve and the side away from the second limiting ring are fixedly connected to the second outer sealing ring, and the second outer sealing ring is snap-connected to the inside of the first outer sealing groove.

[0013] Preferably, the inner side of the connecting sleeve is fixedly connected with annular mounting grooves which are evenly distributed, and each mounting groove has a one-to-one correspondence with each clamping block, and each external thread is slidably connected with the outer side of the clamping block.

[0014] Preferably, a second outer sealing groove is provided at one end of the connecting sleeve away from the first outer sealing groove, and the interior of the second outer sealing groove is snap-connected with the first outer sealing ring, and an inner sealing strip is fixedly connected to one end of the second pipe close to the first pipe, and the inner sealing strip is snap-connected to the interior of the inner sealing groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The stainless steel pipe with a splicing structure rotates the internal thread outside the external thread by rotating the rotating sleeve, drives the external thread to move toward the side close to the second pipe, and applies a force toward the second pipe to the clamping block, so that the first pipe and the second pipe are connected more tightly. At the same time, the first external sealing groove and the second external sealing ring are connected to each other to form a sealing structure. The clamping block is installed inside the connecting sleeve and the rotating sleeve fixes the sliding ring, so that the first pipe and the second pipe can be quickly disassembled and assembled;

[0017] Furthermore, when the first pipe and the second pipe are installed, the first outer sealing ring and the second outer sealing groove and the first outer sealing groove and the second outer sealing ring are interconnected to form a sealing structure, the inner sealing strip and the inner sealing groove are interconnected to form a sealing structure located at the joint of the first pipe and the second pipe, and the remaining sealing structures are located on the outside of the first pipe and the second pipe, so that the connection at the joint of the first pipe and the second pipe is tighter, and at the same time, the joint of the first pipe and the second pipe is strengthened by the rotating sleeve. Protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the pipeline separation structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the first pipeline of the utility model;

[0022] Figure 5 This is a schematic diagram of the first pipeline structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the sliding ring structure of the utility model.

[0024] In the figure: 1. first pipeline; 2. second pipeline; 3. first limiting ring; 4. positioning strip; 5. clamping block; 6. inner sealing groove; 7. sliding ring; 8. external thread; 9. mounting block; 10. positioning groove; 11. first outer sealing ring; 12. second limiting ring; 13. connecting sleeve; 14. first outer sealing groove; 15. rotating sleeve; 16. internal thread; 17. second outer sealing ring; 18. mounting groove; 19. second outer sealing groove; 20. inner sealing strip. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1:

[0027] See also Figure 1 - Figure 6 , the utility model provides the following technical solutions:

[0028] A stainless steel pipe with a splicing structure, comprising a first pipe 1 and a second pipe 2, the ends of the first pipe 1 and the second pipe 2 are fitted to each other, and an annularly distributed connecting sleeve 13 is fixedly connected to the outer side of one end of the second pipe 2 close to the first pipe 1, and the end of the first pipe 1 close to the second pipe 2 is located inside the connecting sleeve 13;

[0029] A first limiting ring 3 is fixedly connected to the outside of the first pipe 1, and a side of the first limiting ring 3 close to the second pipe 2 is fixedly connected to positioning strips 4 equidistantly distributed in a ring shape, and the positioning strips 4 are fixedly connected to the outside of the first pipe 1, and an end of the positioning strip 4 away from the first limiting ring 3 is fixedly connected to a clamping block 5, and the clamping block 5 is set to a wedge-shaped structure, the clamping block 5 is fixedly connected to the outside of the first pipe 1, and an end of the first pipe 1 close to the second pipe 2 is provided with an inner sealing groove 6.

[0030] A sliding ring 7 is slidably connected to the outside of the first pipe 1, and an external thread 8 is provided on the outside of the sliding ring 7. The side of the sliding ring 7 close to the second pipe 2 is fixedly connected to mounting blocks 9 distributed equidistantly in a ring shape, and a positioning groove 10 is provided on the inner side of each mounting block 9.

[0031] The positioning groove 10 is slidably connected to the outside of the positioning strip 4 , and a first outer sealing ring 11 is fixedly connected to one end of the sliding ring 7 close to the second pipe 2 , and the first outer sealing ring 11 is located outside the mounting block 9 .

[0032] A second limiting ring 12 is fixedly connected to the outside of the second pipe 2, and a first outer sealing groove 14 is provided at one end of the connecting sleeve 13 close to the second limiting ring 12. A rotating sleeve 15 is rotatably connected to the outside of the second pipe 2, and the rotating sleeve 15 is located between the outside of the connecting sleeve 13 and the second limiting ring 12.

[0033] An internal thread 16 is provided on the inner side of the rotating sleeve 15, and the inner side of the rotating sleeve 15 is threadedly connected to the outer side of the sliding ring 7 through the internal thread 16 and the external thread 8 on the outer side of the sliding ring 7. The end of the rotating sleeve 15 away from the connecting sleeve 13 and the side away from the second limiting ring 12 are fixedly connected with a second outer sealing ring 17, and the second outer sealing ring 17 is snap-connected to the inside of the first outer sealing groove 14.

[0034] The inner side of the connecting sleeve 13 is fixedly connected with annular mounting grooves 18 which are evenly distributed, and each mounting groove 18 corresponds to each clamping block 5 one by one, and each external thread 8 is slidably connected to the outer side of the clamping block 5 .

[0035] A second outer sealing groove 19 is provided at one end of the connecting sleeve 13 away from the first outer sealing groove 14, and the interior of the second outer sealing groove 19 is snap-connected with the first outer sealing ring 11. An inner sealing strip 20 is fixedly connected to one end of the second pipe 2 close to the first pipe 1, and the inner sealing strip 20 is snap-connected to the interior of the inner sealing groove 6.

[0036] Embodiment 2:

[0037] Based on the first embodiment, the specific working principle is as follows:

[0038] The stainless steel pipe with a splicing structure, when the first pipe 1 and the second pipe 2 are in a separated state, the first pipe 1 and the second pipe 2 are in a Figure 3 In the state shown, the sliding ring 7 and the first limiting ring 3 are in contact with each other, and the rotating sleeve 15 and the second limiting ring 12 are in contact with each other. When the first pipe 1 and the second pipe 2 are butt-jointed, the first pipe 1 and the second pipe 2 are in contact with each other. Figure 1 and Figure 2 The state shown, in which the ends of the first pipe 1 and the second pipe 2 will fit each other, and the end of the first pipe 1 will be completely installed inside the first limiting ring 3;

[0039] In the process of connecting the first pipe 1 and the second pipe 2 to each other, a plurality of clamping blocks 5 are installed in each corresponding mounting groove 18 until the first pipe 1 and the second pipe 2 contact each other, so that the inner sealing strip 20 and the inner sealing groove 6 are connected to each other to form a sealing structure. When the first pipe 1 and the second pipe 2 contact each other and the clamping block 5 is installed in the mounting groove 18, the sliding ring 7 moves so that the sliding ring 7 slides on the outside of the first pipe 1. At this time, the positioning groove 10 will slide on the outside of the positioning strip 4, and the sliding ring 7 will drive the mounting block 9 to slide toward the inside of the mounting groove 18 until the mounting block 9 and the clamping block 5 fit together. When the mounting block 9 and the clamping block 5 fit together, the first outer sealing ring 11 will The first outer sealing groove 14 will be connected with the second outer sealing ring 17, and the rotating sleeve 15 is rotated at this time, so that the rotating sleeve 15 is threadedly connected with the outer thread 8 on the outer side of the sliding ring 7 through the inner thread 16 on the inner side thereof. The rotating sleeve 15 is rotated so that the inner thread 16 rotates outside the outer thread 8, and the outer thread 8 is driven to move toward the side close to the second pipe 2, and a force is applied to the clamping block 5 toward the second pipe 2, so that the first pipe 1 and the second pipe 2 are connected more tightly. At the same time, the first outer sealing groove 14 will be connected with the second outer sealing ring 17 to form a sealing structure. The clamping block 5 is installed in the interior of the connecting sleeve 13 and the sliding ring 7 is fixed by the rotating sleeve 15, so that the first pipe 1 and the second pipe 2 can be quickly disassembled and assembled;

[0040] When the first pipeline 1 and the second pipeline 2 are installed, the first outer sealing ring 11 and the second outer sealing groove 19 and the first outer sealing groove 14 and the second outer sealing ring 17 are interconnected to form a sealing structure, the inner sealing strip 20 and the inner sealing groove 6 are interconnected to form a sealing structure located at the joint of the first pipeline 1 and the second pipeline 2, and the remaining sealing structures are located on the outside of the first pipeline 1 and the second pipeline 2, so that the connection at the joint of the first pipeline 1 and the second pipeline 2 is tighter.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stainless steel pipe with a splicing structure, comprising a first pipe (1) and a second pipe (2), wherein the ends of the first pipe (1) and the second pipe (2) are fitted to each other, and an annularly distributed connecting sleeve (13) is fixedly connected to the outer side of one end of the second pipe (2) close to the first pipe (1), and the end of the first pipe (1) close to the second pipe (2) is located inside the connecting sleeve (13); Features: A first limiting ring (3) is fixedly connected to the outside of the first pipe (1), and a side of the first limiting ring (3) close to the second pipe (2) is fixedly connected to positioning strips (4) distributed in an annular shape and at equal intervals, and the positioning strips (4) are fixedly connected to the outside of the first pipe (1), and an end of the positioning strip (4) away from the first limiting ring (3) is fixedly connected to a clamping block (5), and the clamping block (5) is set as a wedge-shaped structure, and the clamping block (5) is fixedly connected to the outside of the first pipe (1), and an end of the first pipe (1) close to the second pipe (2) is provided with an inner sealing groove (6).

2. The stainless steel pipe with a splicing structure according to claim 1, characterized in that: A sliding ring (7) is slidably connected to the outside of the first pipe (1), and an external thread (8) is provided on the outside of the sliding ring (7); a side of the sliding ring (7) close to the second pipe (2) is fixedly connected to mounting blocks (9) distributed in an annular shape and at equal intervals, and a positioning groove (10) is provided on the inside of each mounting block (9).

3. The stainless steel pipe with a splicing structure according to claim 2, characterized in that: The positioning groove (10) is slidably connected to the outside of the positioning strip (4); the end of the sliding ring (7) close to the second pipe (2) is fixedly connected to a first outer sealing ring (11), and the first outer sealing ring (11) is located outside the mounting block (9).

4. The stainless steel pipe with a splicing structure according to claim 1, characterized in that: A second limiting ring (12) is fixedly connected to the outside of the second pipe (2), and a first outer sealing groove (14) is provided at one end of the connecting sleeve (13) close to the second limiting ring (12). A rotating sleeve (15) is rotatably connected to the outside of the second pipe (2), and the rotating sleeve (15) is located between the outside of the connecting sleeve (13) and the second limiting ring (12).

5. The stainless steel pipe with a splicing structure according to claim 4, characterized in that: The inner side of the rotating sleeve (15) is provided with an internal thread (16), and the inner side of the rotating sleeve (15) is threadedly connected to the outer side of the sliding ring (7) through the internal thread (16) and the external thread (8) on the outer side of the sliding ring (7), and the end of the rotating sleeve (15) away from the connecting sleeve (13) and the side away from the second limiting ring (12) are fixedly connected to the second outer sealing ring (17), and the second outer sealing ring (17) is snap-fitted and connected to the inside of the first outer sealing groove (14).

6. The stainless steel pipe with a splicing structure according to claim 5, characterized in that: The inner side of the connecting sleeve (13) is fixedly connected with mounting grooves (18) distributed in an annular shape and at equal intervals, and each mounting groove (18) corresponds to each clamping block (5) in a one-to-one manner, and each external thread (8) is slidably connected to the outer side of the clamping block (5).

7. The stainless steel pipe with a splicing structure according to claim 6, characterized in that: The end of the connecting sleeve (13) away from the first outer sealing groove (14) is provided with a second outer sealing groove (19), and the interior of the second outer sealing groove (19) is snap-connected with the first outer sealing ring (11); the end of the second pipe (2) close to the first pipe (1) is fixedly connected with an inner sealing strip (20), and the inner sealing strip (20) is snap-connected with the interior of the inner sealing groove (6).

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