Stainless steel pipe coupling

Abstract

The utility model discloses a kind of stainless steel pipe connecting pipe fittings, including pipe fitting main body, the inner wall of pipe fitting main body is provided with pipeline, the outer wall of pipe fitting main body has the sealing pipe matched with pipe fitting main body, the length of the sealing pipe is greater than the length of pipe fitting main body, the pipe fitting main body is between pipeline and sealing pipe, sealing structure is arranged between the both ends of sealing pipe and pipeline, the sealing structure includes the second sealing ring matched with pipeline of being arranged in the inner wall of sealing pipe, the one end of second sealing ring close to pipeline is provided with the second sealing pad matched with pipeline, the sealing structure includes the sealing ring between pipeline and sealing pipe, the sealing ring is located the outside of second sealing ring, sealing groove matched with sealing ring is opened in the sealing pipe. Compared with prior art, a kind of stainless steel pipe connecting pipe fittings of the utility model, which can block the leaked liquid, so that the leaked liquid is not easy to splash randomly.

Description

Technical Field

[0001] This utility model belongs to the technical field of stainless steel pipe connecting fittings, specifically relating to a stainless steel pipe connecting fitting. Background Technology

[0002] Stainless steel pipe fittings are key components in piping systems used for connecting, branching, turning, or changing pipe diameters. They are characterized by strong corrosion resistance and are widely used in chemical, food, pharmaceutical, construction, and water supply industries.

[0003] If the connection between the pipe fitting and the pipe is not well sealed, the liquid being transported in the pipe is prone to leaking from the connection. The liquid may spurt out from the leak and splash randomly. If it splashes onto other objects, it will need to be cleaned up. If it splashes onto nearby electrical equipment, it can also cause safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel pipe connection fitting that can solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0006] A stainless steel pipe connection fitting includes a fitting body, an inner wall of which is provided with a pipe, and an outer wall of which is provided with a sealing pipe that matches the fitting body. The length of the sealing pipe is greater than the length of the fitting body. The fitting body is located between the pipe and the sealing pipe, and sealing structures are provided between the two ends of the sealing pipe and the pipe.

[0007] In one or more embodiments of the present invention, the sealing structure includes a second sealing ring that matches the pipe and is disposed on the inner wall of the sealing tube, and a second sealing gasket that matches the pipe is disposed at one end of the second sealing ring near the pipe.

[0008] In one or more embodiments of the present invention, the sealing structure includes a sealing ring disposed between the pipe and the sealing pipe, the sealing ring being located outside the second sealing ring.

[0009] In one or more embodiments of this utility model, a sealing groove matching the sealing ring is provided inside the sealing tube.

[0010] In one or more embodiments of the present invention, the sealing structure includes a first sealing ring that matches the pipe and is disposed between the pipe and the sealing pipe, the first sealing ring being located outside the sealing ring.

[0011] In one or more embodiments of this utility model, the inner wall of the sealing tube is provided with an internal thread, and the outer wall of the first sealing ring is provided with an external thread.

[0012] In one or more embodiments of this utility model, a rotating ring is fixedly connected to the first sealing ring.

[0013] In one or more embodiments of this utility model, a threaded hole is provided in the rotating ring, and a bolt is threaded into the threaded hole.

[0014] In one or more embodiments of this utility model, a first sealing gasket is provided at the end of both the rotating ring and the first sealing ring near the pipe.

[0015] In one or more embodiments of this utility model, an observation window is provided inside the sealing tube, and an observation plate is provided inside the observation window.

[0016] Compared with the prior art, the stainless steel pipe connection fitting of this utility model can block leaked liquid and prevent the leaked liquid from splashing randomly. Attached Figure Description

[0017] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a stainless steel pipe connecting fitting in one embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of a stainless steel pipe connecting fitting according to one embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure at point A;

[0021] Figure 4 for Figure 2 A schematic diagram of the structure at point B.

[0022] Explanation of key figure labels:

[0023] 11. Pipe body; 12. Pipe; 21. Sealing pipe; 22. Observation plate; 23. Sealing groove; 31. Rotating ring; 32. First sealing ring; 33. Threaded hole; 34. Bolt; 35. First sealing gasket; 41. Second sealing ring; 42. Second sealing gasket; 51. Sealing ring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 should fall within the protection scope of this utility model.

[0025] like Figures 1 to 4 As shown, a stainless steel pipe connecting fitting in one embodiment of the present invention includes a fitting body 11, and a pipe 12 is provided on the inner wall of the fitting body 11. There are two pipes 12, which can be fixed at both ends inside the fitting body 11 respectively. The two pipes 12 can be connected through the fitting body 11 so that the two pipes 12 are connected.

[0026] The outer wall of the pipe fitting body 11 has a sealing tube 21 that matches the pipe fitting body 11. The length of the sealing tube 21 is greater than the length of the pipe fitting body 11. The connection between the pipe fitting body 11 and the pipe 12 is located inside the sealing tube 21.

[0027] The sealing tube 21 is also tubular. The sealing tube 21 can be threaded onto the outer wall of the pipe fitting body 11. That is, the outer wall of the pipe fitting body 11 has external threads, and the inner wall of the sealing tube 21 has internal threads that match the external threads. The sealing tube 21 can also be directly welded or bonded to the outer wall of the pipe fitting body 11. The two ends of the sealing tube 21 protrude from the two ends of the pipe fitting body 11.

[0028] When liquid spurts from the connection between pipe 12 and fitting body 11, it is blocked by the observation plate 22, preventing it from spurting a long distance. The liquid is trapped inside the observation plate 22 and then flows out along its inner wall. Since the observation plate 22 is tubular, the direction of liquid flow is fixed, facilitating the collection of the outflowing liquid. (See details...) Figure 3 and Figure 4 As shown, Figure 4 The arrow in the image indicates the direction in which the liquid spurts out when it leaks.

[0029] Sealing structures are provided at both ends of the sealing pipe 21 and the pipe 12. The sealing structures prevent leaked liquid from flowing out, thus sealing the leak and ensuring normal use.

[0030] The sealing structure includes a second sealing ring 41 that matches the pipe 12 and is disposed on the inner wall of the sealing tube 21. A second sealing gasket 42 that matches the pipe 12 is disposed at one end of the second sealing ring 41 near the pipe 12.

[0031] When it is necessary to fix the pipe 12 inside the fitting body 11, the pipe 12 will pass through the second sealing ring 41. The second sealing ring 41 and the second sealing gasket 42 are located outside the connection between the fitting body 11 and the pipe 12 to seal the leaked liquid.

[0032] The sealing structure includes a sealing ring 51 disposed between the pipe 12 and the sealing tube 21. A sealing groove 23 matching the sealing ring 51 is formed inside the sealing tube 21. The sealing ring 51 is located outside the second sealing ring 41, and it matches the pipe 12. The sealing ring 51 can be fitted onto the pipe 12, and when it moves to fit snugly against the second sealing ring 41, its upper end engages within the sealing groove 23, enhancing the sealing effect.

[0033] The sealing structure includes a first sealing ring 32 that matches the pipe 12 and is disposed between the pipe 12 and the sealing tube 21. The first sealing ring 32 is located outside the sealing ring 51. The inner wall of the sealing tube 21 is provided with internal threads, and the outer wall of the first sealing ring 32 is provided with external threads. The first sealing ring 32 is located outside the sealing ring 51, matches the pipe 12, can be fitted onto the pipe 12, and can be threaded onto the inner wall of the sealing tube 21.

[0034] When the first sealing ring 32 is rotated, the first sealing ring 32 moves toward the sealing ring 51 and fits against the sealing ring 51. The first sealing ring 32 is provided with a first sealing gasket 35 near the inner wall of the pipe 12. The sealing effect is further enhanced by the first sealing ring 32 and the first sealing gasket 35.

[0035] The first sealing ring 32 can also compress the sealing ring 51, pressing the upper end of the sealing ring 51 into the sealing groove 23, while making the sealing ring 51 fit tightly with the second sealing ring 41 and the sealing groove 23, increasing the sealing effect. At the same time, when compressing the sealing ring 51, the outer end of the sealing ring 51 can be fully fitted with the inner wall of the sealing tube 21, and the inner end of the sealing ring 51 can be fully fitted with the outer wall of the pipe 12, increasing the sealing effect.

[0036] A rotating ring 31 is fixedly connected to the first sealing ring 32. The rotating ring 31 is matched with the pipe 12. The first sealing ring 32 can be rotated through the rotating ring 31. A first sealing gasket 35 is provided at one end of the rotating ring 31 and the pipe 12 to increase the sealing effect.

[0037] The rotating ring 31 has a threaded hole 33, and a bolt 34 is threaded into the threaded hole 33. The bolt 34 can abut against the pipe 12, connecting the pipe 12 to the sealing pipe 21, increasing the stability of the pipe 12 and preventing the pipe 12 from falling out of the pipe fitting body 11.

[0038] An observation window is provided inside the sealing tube 21, and an observation plate 22 is installed inside the observation window. The observation plate 22 is located between the liquid leakage point and the sealing structure. When the liquid leaks, the liquid will fill the sealing cavity formed by the sealing tube 21 and the pipe 12. The observation plate 22 makes it easy to observe whether there is liquid in the sealing cavity, so as to determine whether the liquid is leaking from the connection between the fitting body 11 and the pipe 12.

[0039] Compared with the prior art, the stainless steel pipe connection fitting of this utility model can block leaked liquid and prevent the leaked liquid from splashing randomly.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stainless steel pipe connecting fitting comprising a fitting body, an inner wall of the fitting body being provided with a pipe, characterized in that, The outer wall of the pipe fitting body has a sealing tube that matches the pipe fitting body. The length of the sealing tube is greater than the length of the pipe fitting body. The pipe fitting body is located between the pipe and the sealing tube. Sealing structures are provided between the two ends of the sealing tube and the pipe.

2. A stainless steel pipe coupling according to claim 1, wherein The sealing structure includes a second sealing ring that matches the pipe and is disposed on the inner wall of the sealing tube. A second sealing gasket that matches the pipe is disposed at one end of the second sealing ring near the pipe.

3. A stainless steel pipe coupling according to claim 2, wherein The sealing structure includes a sealing ring disposed between the pipe and the sealing pipe, the sealing ring being located outside the second sealing ring.

4. A stainless steel pipe coupling according to claim 3 wherein, The sealing tube has a sealing groove that matches the sealing ring.

5. A stainless steel pipe coupling according to claim 3 wherein, The sealing structure includes a first sealing ring that matches the pipe and is disposed between the pipe and the sealing pipe, the first sealing ring being located outside the sealing ring.

6. A stainless steel pipe coupling according to claim 5 wherein, The inner wall of the sealing tube is provided with internal threads, and the outer wall of the first sealing ring is provided with external threads.

7. A stainless steel pipe coupling according to claim 6 wherein, A rotating ring is fixedly connected to the first sealing ring.

8. A stainless steel pipe connecting fitting according to claim 7, characterized in that, The rotating ring has a threaded hole, and a bolt is threaded into the threaded hole.

9. A stainless steel pipe connecting fitting according to claim 8, characterized in that, Both the rotating ring and the first sealing ring have a first sealing gasket at the end closest to the pipe.

10. A stainless steel pipe connecting fitting according to claim 1, characterized in that, An observation window is provided inside the sealed tube, and an observation plate is provided inside the observation window.

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