Movable joint for thin-wall stainless steel pipe

Abstract

The utility model discloses a thin-wall stainless steel pipe movable joint which comprises a first pipeline, a first joint is installed at the tail end of the first pipeline, the first joint is connected with a second joint in a sliding mode, and a second pipeline is installed at the tail end of the second joint. And a T-shaped rod and an L-shaped baffle ring are arranged in the device so that the second cavity can be sealed, a sealing block and a limiting ring can seal the first cavity, therefore, after the connector is disconnected, the first pipeline and the second pipeline can be sealed, and the good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to a thin-wall stainless steel pipe flexible joint. Background Art

[0002] Thin-walled stainless steel pipe unions are used to connect two thin-walled stainless steel pipes. They are detachable, flexible, and easy to install. The unions can achieve functions such as connection, diversion, or diversion in the pipeline system, ensuring smooth water flow in the pipeline, while reducing installation and maintenance costs and improving the stability and reliability of the pipeline system.

[0003] According to the publication number CN202901593U, a thin-walled stainless steel pipe joint is provided, including an outer thread bolt head and an inner thread nut, a silicone rubber sealing pad is provided at the connection between the outer thread bolt head and the inner thread nut, a silicone rubber sealing ring and a groove for accommodating the silicone rubber sealing ring are provided in the middle of the outer thread bolt head, a retaining ring is provided at the tail end, a retaining ring groove for matching the retaining ring is provided on the thin-walled stainless steel pipe, a silicone rubber sealing ring and a groove for accommodating the silicone rubber sealing ring are also provided in the middle of the inner thread nut, a retaining ring is provided at the tail end, and a retaining ring groove for matching the retaining ring is provided on the thin-walled stainless steel pipe. The present invention has the characteristics of simple structure and good use effect.

[0004] The disadvantage of the above device is that during use, the entire device is connected by an internal thread nut and an external thread bolt. It can be seen that the pipeline can only be connected by rotating the pipeline. If both ends of the pipeline are fixedly connected to the corresponding equipment and cannot be rotated, the connection cannot be made. Therefore, the applicable occasions have certain limitations. During use, when the joint of the entire device is disconnected, the liquid in the pipeline will flow out. Therefore, other sealing components are required, which leads to poor practicality. Utility Model Content

[0005] The utility model aims to provide a thin-wall stainless steel pipe flexible joint to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model provides the following technical solutions: a thin-walled stainless steel pipe flexible joint, comprising a first pipe, a first joint is installed at the end of the first pipe, the first joint is slidably connected to a second joint, and a second pipe is installed at the end of the second joint.

[0007] As a preferred technical solution of the utility model, a first cavity is opened inside the first joint and is connected to the first pipe, a first side plate is fixedly installed on the side wall of the first cavity, a first spring is fixedly installed on the side wall of the first side plate, a sealing block is fixedly installed on the end of the first spring and movably connected to the first cavity, a limiting ring is fixedly installed on the side wall of the end of the first cavity, and the sealing block engages with the limiting ring.

[0008] As a preferred technical solution of the utility model, a first connecting groove is opened on the outer side of the end of the first joint, a fixing groove is opened on the first connecting groove, the first connecting groove is slidably connected to the second cavity opened in the second joint, the second cavity is connected to the second pipe, and a second side plate is fixedly installed on the side wall of the second cavity.

[0009] As a preferred technical solution of the utility model, a T-shaped rod is fixedly installed on the second side panel, a second connecting groove is opened on the outer side of the end of the second joint, a movable hole is opened between the second cavity and the second connecting groove, and a third cavity is opened in the side wall of the second cavity.

[0010] As a preferred technical solution of the utility model, the second spring is fixedly installed on the side wall of the second connecting groove, the end of the second spring is fixedly connected to the limiting cylinder and slidably connected to the second connecting groove, a ball is movably connected in the movable hole, and a movable groove is opened on the side wall at the end of the limiting cylinder and is movably connected to the ball.

[0011] As a preferred technical solution of the utility model, an L-shaped retaining ring is slidably connected inside the third cavity, a third spring is fixedly connected between the end of the L-shaped retaining ring and the side wall of the third cavity, and the L-shaped retaining ring is slidably connected to the T-shaped rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The device is directly connected to the second joint through the first joint, without the need for rotation and other operations, so that a quick and convenient connection can be made, and the applicability is wide. A T-shaped rod and an L-shaped retaining ring are arranged in the device to seal the second cavity, and a sealing block and a limiting ring can seal the first cavity, so that the first pipe and the second pipe will be sealed after the joint is disconnected, and the device has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of a thin-walled stainless steel pipe flexible joint according to an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a first joint of a thin-walled stainless steel pipe flexible joint according to an embodiment of the utility model;

[0017] Figure 3 The utility model is a schematic structural diagram of a second joint of a thin-walled stainless steel pipe flexible joint according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] 1. First pipeline; 2. First joint; 3. Second joint; 4. Second pipeline; 5. First cavity; 6. First side plate; 7. First spring; 8. Sealing block; 9. Limiting ring; 10. First connecting groove; 11. Fixed groove; 12. Second cavity; 13. Second side plate; 14. T-shaped rod; 15. Second connecting groove; 16. Movable hole; 17. Third cavity; 18. Second spring; 19. Limiting cylinder; 20. Round ball; 21. Movable groove; 22. L-shaped retaining ring; 23. Third spring. DETAILED DESCRIPTION

[0020] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0021] See also Figure 1-3 According to an embodiment of the utility model, a thin-walled stainless steel pipe flexible joint includes a first pipe 1, a first joint 2 is installed at the end of the first pipe 1, the first joint 2 is slidably connected to a second joint 3, and a second pipe 4 is installed at the end of the second joint 3.

[0022] The first pipeline 1 and the second pipeline 4 are connected via the first joint 2 and the second joint 3 .

[0023] In this embodiment, a first cavity 5 is opened inside the first joint 2 and is connected to the first pipe 1. A first side plate 6 is fixedly installed on the side wall of the first cavity 5. A first spring 7 is fixedly installed on the side wall of the first side plate 6. A sealing block 8 is fixedly installed on the end of the first spring 7 and is movably connected to the first cavity 5. A limiting ring 9 is fixedly installed on the side wall at the end of the first cavity 5, and the sealing block 8 engages with the limiting ring 9.

[0024] The first spring 7 plays a role in resetting the sealing block 8 , and the sealing block 8 and the limiting ring 9 play a role in sealing the first cavity 5 .

[0025] In this embodiment, a first connecting groove 10 is opened on the outer side of the end of the first joint 2, and a fixing groove 11 is opened on the first connecting groove 10. The first connecting groove 10 is slidably connected to a second cavity 12 opened in the second joint 3. The second cavity 12 is connected to the second pipe 4, and a second side plate 13 is fixedly installed on the side wall of the second cavity 12.

[0026] The first connector 2 is used to connect to the second cavity 12 .

[0027] In this embodiment, a T-shaped rod 14 is fixedly installed on the second side plate 13, a second connecting groove 15 is opened on the outer side of the end of the second joint 3, a movable hole 16 is opened between the second cavity 12 and the second connecting groove 15, and a third cavity 17 is opened in the side wall of the second cavity 12.

[0028] The T-shaped rod 14 cooperates with the L-shaped retaining ring 22 to seal the second cavity 12 , and the third cavity 17 is used to receive the L-shaped retaining ring 22 .

[0029] In this embodiment, the second spring 18 is fixedly installed on the side wall of the second connecting groove 15, the end of the second spring 18 is fixedly connected to the limiting cylinder 19 and slidably connected to the second connecting groove 15, a ball 20 is movably connected in the movable hole 16, and a movable groove 21 is opened on the side wall at the end of the limiting cylinder 19 and is movably connected to the ball 20.

[0030] The second spring 18 serves to reset the limiting cylinder 19 , and the movable hole 16 and the movable groove 21 are used to accommodate the ball 20 .

[0031] In this embodiment, an L-shaped retaining ring 22 is slidably connected inside the third cavity 17 , a third spring 23 is fixedly connected between the end of the L-shaped retaining ring 22 and the side wall of the third cavity 17 , and the L-shaped retaining ring 22 is slidably connected to the T-shaped rod 14 .

[0032] In specific application, the first joint 2 and the second joint 3 are first fixedly installed on the first pipe 1 and the second pipe 4 by welding. When the first joint 2 and the second joint 3 are connected, the first connection groove 10 of the first joint 2 is inserted into the second cavity 12. At this time, the T-shaped rod 14 blocks the sealing block 8, and the first joint 2 squeezes the L-shaped retaining ring 22 into the third cavity 17, so that the first cavity 5 is connected to the second cavity 12, and then the first pipe 1 and the second pipe 4 are connected to each other. When the fixed groove 11 moves to the movable hole 16, the movable hole 1 6 and the ball 20 at the movable groove 21 will fall into the fixed groove 11. When the ball 20 falls into the fixed groove 11, the limiting cylinder 19 moves to misalign the movable groove 21 with the movable hole 16. The ball 20 cannot be reset and is fixed in the fixed groove 11, so that the first joint 2 is fixedly connected to the second joint 3. When disconnection is required, the limiting cylinder 19 is manually pushed to move the movable groove 21 to the movable hole 16. At this time, the ball 20 can be located in the movable hole 16 and the movable groove 21, and the first connecting groove 10 can be disconnected from the second cavity 12.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A thin-walled stainless steel pipe joint, characterized in that: It comprises a first pipeline (1), a first joint (2) is installed at the end of the first pipeline (1), the first joint (2) is slidably connected to a second joint (3), and a second pipeline (4) is installed at the end of the second joint (3).

2. A thin-walled stainless steel pipe flexible joint according to claim 1, characterized in that: A first cavity (5) is provided inside the first joint (2) and is connected to the first pipe (1); a first side plate (6) is fixedly mounted on the side wall of the first cavity (5); a first spring (7) is fixedly mounted on the side wall of the first side plate (6); a sealing block (8) is fixedly mounted at the end of the first spring (7) and is movably connected to the first cavity (5); a limiting ring (9) is fixedly mounted on the side wall at the end of the first cavity (5); and the sealing block (8) engages with the limiting ring (9).

3. A thin-walled stainless steel pipe flexible joint according to claim 2, characterized in that: A first connecting groove (10) is provided on the outer side of the end of the first joint (2), a fixing groove (11) is provided on the first connecting groove (10), the first connecting groove (10) is slidably connected to a second cavity (12) provided in the second joint (3), the second cavity (12) is connected to the second pipe (4), and a second side plate (13) is fixedly mounted on the side wall of the second cavity (12).

4. A thin-walled stainless steel pipe flexible joint according to claim 3, characterized in that: A T-shaped rod (14) is fixedly mounted on the second side plate (13); a second connecting groove (15) is provided on the outer side of the end of the second joint (3); a movable hole (16) is provided between the second cavity (12) and the second connecting groove (15); and a third cavity (17) is provided in the side wall of the second cavity (12).

5. A thin-walled stainless steel pipe flexible joint according to claim 4, characterized in that: A second spring (18) is fixedly mounted on the side wall of the second connecting groove (15); the end of the second spring (18) is fixedly connected to a limiting cylinder (19) and is slidably connected to the second connecting groove (15); a ball (20) is movably connected in the movable hole (16); and a movable groove (21) is formed on the side wall of the end of the limiting cylinder (19) and is movably connected to the ball (20).

6. A thin-walled stainless steel pipe flexible joint according to claim 4, characterized in that: An L-shaped retaining ring (22) is slidably connected inside the third cavity (17), a third spring (23) is fixedly connected between the end of the L-shaped retaining ring (22) and the side wall of the third cavity (17), and the L-shaped retaining ring (22) is slidably connected to the T-shaped rod (14).

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