Stainless steel pipe coupling

Abstract

The utility model belongs to stainless steel pipe technical field, specifically is a kind of stainless steel pipe connecting piece, including connecting piece body, two ends are equipped with the butt joint groove for the stainless steel pipe insertion, still include the connecting assembly of being sleeved in stainless steel pipe end part, with the connecting piece body cooperation fixed, connecting assembly has the deformation part of being inserted butt joint groove, the driving part for driving deformation part deformation is equipped in butt joint groove, the relative cooperation surface of deformation part and driving part is equipped with bevel and camber respectively, stainless steel pipe end part is sleeved with the sealing sleeve located in butt joint groove and deformation part, sealing sleeve includes the first sealing part between the deformation part inner diameter and the stainless steel pipe outer diameter, and the second sealing part between stainless steel pipe end part and butt joint groove inner wall, the recess is equipped in deformation part inner diameter and outer diameter, and the lining part of extending to the stainless steel pipe inner diameter is equipped on connecting piece body, and double seal is formed by deformation part and driving sealing sleeve cooperation, and the sealing property and stability of connection are improved.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel pipe technology, specifically a stainless steel pipe connector. Background Technology

[0002] Stainless steel pipes are widely used in fluid transportation, building pipelines and other fields due to their corrosion resistance and high strength. As the core component for pipe splicing, the sealing performance and connection reliability of stainless steel pipe fittings directly affect the operating quality of the entire pipeline system.

[0003] The existing stainless steel pipe connectors have the following drawbacks: when assembling two sections of stainless steel pipe together, or when extending a fixed section of stainless steel pipe a certain distance, the sealing structure of the stainless steel pipe connectors is generally simple, relying mainly on a single ring-shaped sealing ring or a flat sealing gasket. Furthermore, they are prone to loosening when subjected to external vibration or water hammer impact, resulting in insufficient structural stability and fluid leakage. Therefore, a new stainless steel pipe connector is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing stainless steel pipe connectors, a new type of stainless steel pipe connector is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The stainless steel pipe connector of this utility model includes a connector body, a through hole communicating with a stainless steel pipe in the connector body, and mating grooves for inserting stainless steel pipes at both ends of the connector body. It also includes a connecting component sleeved on the end of the stainless steel pipe and fixedly fitted with the connector body. The connecting component includes a deformable part inserted into the mating groove, a driving part for driving the deformation of the deformable part is provided in the mating groove, and a sealing sleeve located in the mating groove is sleeved on the end of the stainless steel pipe, and the sealing sleeve is located in the deformable part.

[0006] Preferably, a bevel is provided on the mating surface of the deformable part and the driving part, and an arc surface is provided on the driving part that mates with the bevel.

[0007] Preferably, grooves are provided on both the inner and outer diameters of the deformable part.

[0008] Preferably, the sealing sleeve includes a first sealing portion located between the inner diameter of the deformed portion and the outer diameter of the stainless steel tube, and a second sealing portion located between the end of the stainless steel tube and the inner wall of the mating groove.

[0009] Preferably, both the connector body and the connecting assembly have flange portions at their opposite ends to fix them together, and bolt holes are provided on the flange portions.

[0010] Preferably, the connector body is provided with a lining portion extending to the inner diameter wall of the stainless steel tube.

[0011] Preferably, the inner wall of the lining portion is provided with a tapered bevel, and the diameter of the tapered bevel is largest at the end closest to the inner wall of the stainless steel tube.

[0012] Preferably, the connecting component is provided with a welding part.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a stainless steel pipe connector. When assembling two sections of stainless steel pipe or extending a fixed section of stainless steel pipe a certain distance, the connector of this utility model features a bevel on the deformable part that engages with the arc surface of the driving part in the mating groove. This allows the deformable part to undergo controllable shrinkage deformation. Combined with the first and second sealing parts of the sealing sleeve located within the deformable part, a double sealing structure is formed. This simultaneously improves the sealing reliability of the connection point and blocks fluid leakage paths during the assembly of the connecting component and the connector body. Furthermore, it enhances the installation accuracy between the two pipe fittings. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a sectional view of the overall structure of this utility model and the two stainless steel tubes after disassembly.

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model after assembly with two stainless steel pipes;

[0018] Legend:

[0019] 01. Stainless steel pipe; 1. Connector body; 101. Through hole; 2. Butt groove; 3. Connecting assembly; 301. Deformation part; 3011. Bevel; 3012. Groove; 4. Drive part; 401. Arc surface; 5. Sealing sleeve; 501. First sealing part; 502. Second sealing part; 6. Flange part; 7. Lining part; 8. Tapered bevel; 9. Welding part. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] Please see Figures 1-2The present invention discloses a stainless steel pipe connector, comprising a connector body 1, wherein the connector body 1 has a through hole 101 communicating with a stainless steel pipe 01, and both ends of the connector body 1 are provided with mating grooves 2 for inserting the stainless steel pipe 01. It also includes a connecting component 3 fitted onto the end of the stainless steel pipe 01 and fixedly engaged with the connector body 1. The connecting component 3 includes a deformable part 301 inserted into the mating groove 2, and a driving part 4 for driving the deformation of the deformable part 301 is provided within the mating groove 2. A sealing sleeve 5 located within the mating groove 2 is fitted onto the end of the stainless steel pipe 01. The sealing sleeve 5 may be made of rubber. The material of the sleeve 5 can also be a material with similar elasticity and sealing properties, such as silicone or polyurethane. The sealing sleeve 5 is located inside the deformable part 301. The sealing sleeve 5 includes a first sealing part 501 located between the inner diameter of the deformable part 301 and the outer diameter of the stainless steel tube 01, and a second sealing part 502 located between the end of the stainless steel tube 01 and the inner wall of the mating groove 2. A bevel 3011 is provided on the mating surface of the deformable part 301 that is opposite to the driving part 4. An arc surface 401 is provided on the driving part 4 that is opposite to the bevel 3011. During operation, when assembling two sections of stainless steel tube 01 or when extending a fixed section of stainless steel tube 01... When connecting a series of stainless steel pipes 01, first, the connecting component 3 is fitted onto the end of one of the stainless steel pipes 01. Then, the sealing sleeve 5 is fitted onto the end of the stainless steel pipe 01, and the first sealing part 501 of the sealing sleeve 5 is inserted between the outer diameter of the stainless steel pipe 01 and the inner diameter of the deformable part 301 of the connecting component 3. Then, the end of the stainless steel pipe 01 fitted with the sealing sleeve 5 and the connecting component 3 is inserted into the mating groove 2 of the connecting body 1. At this time, the second sealing part 502 is located between the end of the stainless steel pipe 01 and the inner wall of the mating groove 2. The connecting body 1 is pushed so that it and the stainless steel pipe 01 squeeze the second sealing part 502 to deform it, while the connecting component 3 is pushed closer to the stainless steel pipe 01. In the process of connecting the main body 1, the arc surface 401 of the driving part 4 and the slope 3011 of the deformation part 301 fit together. When the driving part 4 is pushed into the docking groove 2, the arc surface 401 will generate radial extrusion force on the slope 3011, forcing the deformation part 301 to shrink and deform. After the deformation part 301 deforms, it squeezes the first sealing part 501, so that it fits tightly against the outer diameter of the stainless steel tube 01 and the inner diameter of the deformation part 301. At the same time, the second sealing part 502 is compacted in the gap between the end of the stainless steel tube 01 and the inner wall of the docking groove 2, achieving a double sealing effect. Finally, the other section of stainless steel tube 01 can be connected in the same way as above. The specific method will not be described in detail.

[0023] Furthermore, grooves 3012 are provided on both the inner and outer diameters of the deformable part 301. During operation, when the driving part 4 applies radial extrusion force to the deformable part 301 through the cooperation of the arc surface 401 and the inclined groove 3011 of the deformable part 301, the grooves 3012 on the inner and outer diameters of the deformable part 301 provide a preset deformation space, so that the deformable part 301 can undergo regular and uniform contraction deformation along the position of the groove 3012, and the groove 3012 can guide the deformation direction.

[0024] Furthermore, both the connector body 1 and the connecting assembly 3 are provided with flange portions 6 at their opposing ends to fix them together. Bolt holes are provided on the flange portions 6. During operation, after the connecting assembly 3 and the connector body 1 abut against each other, the flange portions 6 at the opposing ends of the connector body 1 and the connecting assembly 3 fit together. By inserting bolts into the bolt holes of the flange portions 6 and tightening them, the axial preload of the bolts is used to firmly lock the two together.

[0025] Furthermore, the connector body 1 is provided with a liner 7 extending to the inner diameter wall of the stainless steel tube 01. During operation, as the stainless steel tube 01 is inserted into the docking groove 2, the liner 7 on the connector body 1 is simultaneously inserted into the inner diameter of the stainless steel tube 01. The outer wall of the liner 7 fits against the inner diameter wall of the stainless steel tube 01, providing support to the end of the stainless steel tube 01. At the same time, the positioning and guidance of the liner 7 ensures that the inner cavity of the stainless steel tube 01 is aligned with the through hole 101 of the connector body 1, avoiding channel misalignment caused by the offset of the end of the stainless steel tube 01. The liner 7 can prevent the end of the stainless steel tube 01 from deforming due to force when inserted into the docking groove 2. It also achieves coaxial positioning of the stainless steel tube 01 and the connector body 1, ensuring smooth fluid transport channel, reducing local resistance during fluid transport, and improving transport efficiency.

[0026] Furthermore, the inner wall of the lining portion 7 is provided with a conical bevel 8, and the diameter of the conical bevel 8 is largest at the end closest to the inner wall of the stainless steel pipe 01. During operation, when the fluid passes through the through hole 101 of the connector body 1 and the connection between the fluid and the inner cavity of the stainless steel pipe 01, the conical bevel 8 on the inner wall of the lining portion 7 forms a smooth transition channel. Since the diameter of the conical bevel 8 is largest at the end closest to the inner wall of the stainless steel pipe 01 and matches the inner diameter of the stainless steel pipe 01, the fluid can flow smoothly along the inclined surface of the conical bevel 8, avoiding the formation of eddies at the connection and reducing the scouring and wear of the connection by the fluid.

[0027] Furthermore, the connecting component 3 is provided with a welding part 9; during operation, after the connecting component 3 is connected to the connecting body 1 through the flange part 6, the connecting component 3 can be welded to the outer wall of the stainless steel pipe 01 through the end of the welding part 9 on the connecting component 3, and after welding, the welding part 9 forms a strong connecting weld.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A stainless steel pipe connector, characterized in that: The device includes a connector body (1), which has a through hole (101) communicating with a stainless steel tube (01). Both ends of the connector body (1) are provided with mating grooves (2) for inserting the stainless steel tube (01). The device also includes a connecting component (3) fitted onto the end of the stainless steel tube (01) and fixed to the connector body (1). The connecting component (3) includes a deformable part (301) inserted into the mating groove (2). The mating groove (2) is provided with a driving part (4) for driving the deformable part (301) to deform. The end of the stainless steel tube (01) is fitted with a sealing sleeve (5) located in the mating groove (2), and the sealing sleeve (5) is located in the deformable part (301).

2. A stainless steel pipe connector according to claim 1, characterized in that: A bevel (3011) is provided on the mating surface of the deformable part (301) and the driving part (4), and an arc surface (401) is provided on the driving part (4) and the bevel (3011) is mating with it.

3. A stainless steel pipe connector according to claim 1, characterized in that: The deformable part (301) has grooves (3012) on both its inner and outer diameters.

4. A stainless steel pipe connector according to claim 1, characterized in that: The sealing sleeve (5) includes a first sealing part (501) located between the inner diameter of the deformed part (301) and the outer diameter of the stainless steel tube (01) and a second sealing part (502) located between the end of the stainless steel tube (01) and the inner wall of the docking groove (2).

5. A stainless steel pipe connector according to claim 1, characterized in that: Both the connector body (1) and the connector assembly (3) are provided with flange portions (6) to fix the two together, and bolt holes are provided on the flange portions (6).

6. A stainless steel pipe connector according to claim 1, characterized in that: The connector body (1) is provided with a liner (7) extending to the inner diameter wall of the stainless steel tube (01).

7. A stainless steel pipe connector according to claim 6, characterized in that: The inner wall of the lining part (7) is provided with a tapered bevel (8), and the tapered bevel (8) has the largest diameter at the end closest to the inner wall of the stainless steel tube (01).

8. A stainless steel pipe connector according to claim 1, characterized in that: The connecting component (3) is provided with a welding part (9).

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