Pipeline joint of stainless steel pipeline

Abstract

The utility model discloses a pipeline joint of a stainless steel pipeline, which relates to the field of stainless steel pipelines and comprises a first pipeline, the first pipeline is movably connected with a second pipeline through a connecting pipe, and two threaded pipes are in threaded connection with the inside of the connecting pipe. Under the linkage action of the linkage piece, one large ring block is twisted to drive the two large ring blocks to rotate synchronously with the two threaded pipes, and the threaded pipes with different screw directions are in threaded connection with the second threaded grooves reserved in the first pipeline and the second pipeline after moving in the same direction or moving away from each other in the same direction. In this way, the first pipeline, the second pipeline and the connecting pipe are connected, the overall connecting mode is simple, threaded connection has self-locking performance, firmness of pipeline connection is guaranteed, follow-up disassembly and assembly are convenient, and when the threaded pipe rotates and changes in position, the limiting column abuts against the side wall of the limiting groove, namely, the threaded pipe cannot rotate any more, and therefore the pipeline can be conveniently disassembled and assembled. Therefore, the threaded pipe and the connecting pipe are prevented from falling off.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipes, and specifically to a pipe joint for stainless steel pipes. Background Technology

[0002] Stainless steel is considered a healthy material that can be implanted in the human body, making it the most beneficial choice for water supply pipes. The smooth inner wall of stainless steel pipes prevents scale buildup over long-term use, resists microbial contamination, eliminates concerns about water quality, and prevents secondary water pollution.

[0003] The existing connections between stainless steel pipes still have the following problems: most of the existing connections between stainless steel pipes are achieved by welding, which has a high overall operation cost and is relatively complicated, and it is also inconvenient to replace the pipes later.

[0004] Therefore, it is necessary to invent a pipe fitting for stainless steel pipes to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe joint for stainless steel pipes, in order to solve the problems mentioned in the background art that most existing stainless steel pipe connections are achieved by welding, which has high overall operation costs and is relatively complicated, and makes pipe replacement inconvenient in the later stages.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe joint for stainless steel pipes, comprising a pipe one, wherein the pipe one and the pipe two are movably connected by a connecting pipe, the connecting pipe has two threaded pipes internally threadedly connected, and the two threaded pipes are respectively threadedly connected to the pipe one and the pipe two, and large ring blocks are fixedly fitted on the outer walls of the two threaded pipes, and further comprising:

[0007] The anti-detachment component has an annular groove inside the connecting tube, and a small ring block is rotatably connected inside the annular groove. A limit post is fixedly connected to the inner wall of the small ring block. The limit post is slidably connected to the limit groove reserved inside the threaded tube to prevent the threaded tube from falling off the connecting tube.

[0008] The linkage consists of a thin rod and a thick rod fixedly connected to the outer walls of the two large ring blocks, respectively. The thick rod has a pre-reserved columnar groove inside, and the thin rod is slidably connected to the columnar groove. In this way, when one side of the large ring block is turned, the other side of the large ring block will rotate synchronously, thereby causing the two threaded tubes to rotate synchronously.

[0009] Preferably, the outer rings of the two threaded tubes have opposite thread directions, and the two threaded tubes are respectively threaded to two pre-reserved threaded grooves inside the connecting tube. The two threaded grooves are not connected to each other. During the synchronous rotation of the two threaded tubes, the threaded tubes with different thread directions can move towards each other or away from each other during the same rotation.

[0010] The two ends of the two threaded pipes that are far apart are respectively threaded to the threaded grooves reserved inside pipe one and pipe two, so as to ensure that the two threaded pipes are threaded to pipe one and pipe two during the process of rotating in the same direction to achieve opposite movement.

[0011] Preferably, a sealing ring is fixedly connected to the inner end of the second threaded groove to ensure the sealing of the connection between the threaded pipe and pipe one and pipe two.

[0012] Preferably, there is a gap between the annular inner wall of the small ring block and the outer thread of the threaded tube, to ensure that the small ring block does not affect the rotation of the threaded tube.

[0013] Preferably, the inner ring of the small ring block is fixedly connected to two limiting posts that are set with reference to the central axis of the inner ring of the small ring block as the axis of symmetry.

[0014] Preferably, both ends of the limiting groove are closed ends, and the inner wall of the limiting groove is in contact with the outer wall of the limiting post and forms a sliding connection. In this way, when the threaded tube rotates and changes position, when the limiting post abuts against the side wall of the limiting groove, the threaded tube has no space to change position, that is, the threaded tube cannot rotate, thus preventing the threaded tube from falling off the connecting tube.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This utility model utilizes the linkage of a linkage component to rotate a large ring block, thereby driving two large ring blocks and two threaded pipes to rotate synchronously. During the rotation in the same direction, the threaded pipes with different screw directions move towards each other or away from each other, and then respectively connect with the threaded grooves reserved inside the pipe one and pipe two. In this way, pipe one, pipe two and connecting pipe are connected. The overall connection method is relatively simple, and the threaded connection has self-locking properties, ensuring the firmness of the pipe connection and making subsequent disassembly and assembly more convenient.

[0017] When the threaded tube rotates and changes position, when the limiting post abuts against the side wall of the limiting groove, the threaded tube has no room to change position, that is, the threaded tube can no longer rotate, thus preventing the threaded tube from falling off the connecting tube. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a perspective view of the overall structure of this utility model;

[0020] Figure 2 This is a perspective view of the overall structure (partially sectional view) of this utility model;

[0021] Figure 3 This is an exploded view of the overall structure of this utility model;

[0022] Figure 4 This is an exploded view of the connecting pipe (partially cut out) and the pipe connection structure of this utility model;

[0023] Figure 5 This is an exploded view of the overall structure of the linkage component of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Pipe 1; 2. Pipe 2; 3. Connecting pipe; 4. Threaded pipe; 5. Threaded groove 1; 6. Threaded groove 2; 7. Sealing ring; 8. Anti-detachment component; 81. Annular groove; 82. Small ring block; 83. Limiting post; 84. Limiting groove; 9. Large ring block; 10. Linkage component; 101. Thin rod; 102. Thick rod; 103. Columnar groove. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The stainless steel pipe fitting shown includes a pipe 1, which is movably connected to a pipe 2 via a connecting pipe 3. The connecting pipe 3 has two threaded pipes 4 internally threaded, and each threaded pipe 4 is threadedly connected to both pipe 1 and pipe 2. Large ring blocks 9 are fixedly fitted onto the outer walls of both threaded pipes 4. The fitting also includes:

[0028] The anti-detachment component 8 has an annular groove 81 inside the connecting pipe 3, and a small ring block 82 is rotatably connected inside the annular groove 81. A limit post 83 is fixedly connected to the inner wall of the small ring block 82. The limit post 83 and the limit groove 84 reserved inside the threaded pipe 4 are slidably connected to prevent the threaded pipe 4 from falling off the connecting pipe 3.

[0029] The linkage 10 has a thin rod 101 and a thick rod 102 fixedly connected to the outer walls of the two large ring blocks 9 respectively. The thick rod 102 has a pre-reserved columnar groove 103 inside. The thin rod 101 and the columnar groove 103 are slidably connected. In this way, when one side of the large ring block 9 is turned, the other side of the large ring block 9 will rotate synchronously, thereby causing the two threaded tubes 4 to rotate synchronously.

[0030] The threads on the outer rings of the two threaded pipes 4 are opposite in direction, and the two threaded pipes 4 are respectively threaded to the two threaded grooves 5 reserved inside the connecting pipe 3. The two threaded grooves 5 are not connected to each other. During the synchronous rotation of the two threaded pipes 4, the threaded pipes 4 with different threads can move towards each other or away from each other during the same rotation.

[0031] The two ends of the two threaded pipes 4, which are far apart, are threadedly connected to the threaded grooves 2 6 reserved inside the pipe 1 and pipe 2, respectively, to ensure that the two threaded pipes 4 are threadedly connected to the pipe 1 and pipe 2 during the process of rotating in the same direction to achieve opposite movements.

[0032] A sealing ring 7 is fixedly connected to the inner end of the threaded groove 6 to ensure the sealing of the connection between the threaded pipe 4 and pipe 1 and pipe 2.

[0033] There is a gap between the inner annular wall of the small ring block 82 and the outer thread of the threaded tube 4, ensuring that the small ring block 82 does not affect the rotation of the threaded tube 4.

[0034] The inner ring of the small ring block 82 is fixedly connected by two limiting posts 83, which are set with reference to the central axis of the inner ring of the small ring block 82 as the axis of symmetry.

[0035] The two ends of the limiting groove 84 are closed ends, and the inner wall of the limiting groove 84 is attached to the outer wall of the limiting post 83 and forms a sliding connection. In this way, when the threaded tube 4 rotates and changes position, when the limiting post 83 abuts against the side wall of the limiting groove 84, the threaded tube 4 has no space to change position, that is, the threaded tube 4 cannot rotate, thus preventing the threaded tube 4 from falling off the connecting tube 3.

[0036] Working principle: When using a stainless steel pipe fitting, first connect the connecting pipe 3 to pipe 1 and pipe 2, and twist a large ring block 9. At this time, under the linkage of the thin rod 101 and thick rod 102 of the movable set, the two large ring blocks 9 rotate synchronously. At this time, the two threaded pipes 4 fixedly inserted into the inner rings of the two large ring blocks 9 rotate synchronously. Since the threads on the outer rings of the two threaded pipes 4 are opposite in direction, and the two threaded pipes 4 are respectively threaded to the two pre-reserved thread grooves 5 inside the connecting pipe 3, during the synchronous rotation of the two threaded pipes 4, the threaded pipes 4 with different threads can move towards each other or away from each other during the same rotation. When the threaded pipes 4 rotate and move towards the direction of pipe 1 and pipe 2 respectively, they are respectively threaded to the pre-reserved thread grooves 6 inside pipe 1 and pipe 2. In this way, pipe 1, pipe 2, and connecting pipe 3 are connected.

[0037] Meanwhile, when the threaded tube 4 rotates and changes position, when the limiting post 83 abuts against the side wall of the limiting groove 84, the threaded tube 4 has no space to change position, that is, the threaded tube 4 cannot rotate, thus preventing the threaded tube 4 from falling off the connecting tube 3.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pipe fitting for a stainless steel pipe, comprising a pipe (1), characterized in that, The first pipe (1) and the second pipe (2) are connected by a connecting pipe (3). The connecting pipe (3) has two threaded pipes (4) internally threaded, and the two threaded pipes (4) are threaded to the first pipe (1) and the second pipe (2) respectively. The outer walls of the two threaded pipes (4) are fixedly fitted with large ring blocks (9). The connection also includes: The anti-detachment component (8) has an annular groove (81) inside the connecting pipe (3), and a small ring block (82) is rotatably connected inside the annular groove (81). A limit post (83) is fixedly connected to the inner wall of the small ring block (82), and the limit post (83) is slidably connected to the limit groove (84) reserved inside the threaded pipe (4). The linkage (10) has a thin rod (101) and a thick rod (102) fixedly connected to the outer walls of the two large ring blocks (9), and the thick rod (102) has a columnar groove (103) reserved inside, and the thin rod (101) and the columnar groove (103) are in a sliding connection.

2. The pipe joint for a stainless steel pipe according to claim 1, characterized in that, The threads on the outer rings of the two threaded pipes (4) are opposite in direction, and the two threaded pipes (4) are respectively connected to the two threaded grooves (5) reserved inside the connecting pipe (3), and the two threaded grooves (5) are not connected to each other. The two ends of the two threaded pipes (4) that are far apart are respectively threaded to the threaded grooves (6) reserved inside the pipe one (1) and the pipe two (2).

3. A pipe joint for a stainless steel pipe according to claim 2, characterized in that, A sealing ring (7) is fixedly connected to the inner end of the threaded groove (6).

4. A pipe joint for a stainless steel pipe according to claim 1, characterized in that, There is a gap between the annular inner wall of the small ring block (82) and the outer thread of the threaded pipe (4).

5. A pipe joint for a stainless steel pipe according to claim 1, characterized in that, The inner ring of the small ring block (82) is fixedly connected to two limiting posts (83) set with reference to the central axis of the inner ring of the small ring block (82) as the axis of symmetry.

6. A pipe joint for a stainless steel pipe according to claim 1, characterized in that, The two ends of the limiting groove (84) are closed ends, and the inner wall of the limiting groove (84) is attached to the outer wall of the limiting post (83) and forms a sliding connection.

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