Enhanced multi-layer metal corrugated pipe

Abstract

The utility model relates to the technical field of metal corrugated pipes, and discloses an enhanced multilayer metal corrugated pipe which comprises a metal corrugated pipe, metal corrugated pipe connectors are fixedly connected to the two ends of the metal corrugated pipe, external threads are arranged on the outer walls of the metal corrugated pipe connectors, and the metal corrugated pipe connectors are fixedly connected with the metal corrugated pipe connectors. Wherein one metal corrugated pipe connector is in threaded connection with a first connecting sleeve, the side, away from the metal corrugated pipe connector, of the first connecting sleeve is fixedly connected with a transfer box, and the inner wall of the transfer box is fixedly connected with a buffer plate. According to the technical scheme, the first connecting sleeve and the second connecting sleeve can be fixed through the transfer box, connection of the two metal corrugated pipes can be achieved through the first connecting sleeve and the second connecting sleeve, when liquid passes through the transfer box, impact force of the liquid can be buffered through a cavity in the transfer box and a buffer plate, and therefore the liquid is prevented from falling off. Therefore, the flow velocity of liquid is slowed down, the stability of connection between the metal corrugated pipes is improved, and the phenomenon of water leakage caused by looseness at the joint is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal bellows, in particular to an enhanced multi-layer metal bellows. Background Technique

[0002] A metal bellows is a pipe with an appearance like regular waves. Commonly used metal bellows are made of carbon steel, stainless steel, steel-lined plastic, aluminum, etc. It is mainly used for non-concentric axial transmission with a very small bending radius, or irregular turning, telescoping, or absorbing the thermal deformation of the pipeline, etc., or for connecting pipelines to pipelines or pipelines to equipment in occasions where it is not convenient to install fixed elbows.

[0003] In the patent document with the published publication number CN214889457U, a metal bellows is disclosed, which includes a bellows body. A strengthening connecting piece is arranged between the corrugated sections of the bellows body. A steel pipe is arranged inside the bellows body. A heat-insulating layer is arranged between the bellows body and the steel pipe. A sound-insulating layer is arranged outside the bellows body. By arranging a strengthening connecting piece between the corrugated sections, the strength of the bellows body can be improved.

[0004] In the actual use process of the metal bellows in the prior art, multiple metal bellows are usually connected to obtain a longer length. However, the body fluid passing through the metal bellows usually has a relatively fast flow rate, which easily causes loosening at the connection position between the metal bellows and results in water leakage. Therefore, an enhanced multi-layer metal bellows is needed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an enhanced multi-layer metal bellows to solve the problems put forward in the background technique.

[0006] The embodiment of the present application provides an enhanced multi-layer metal bellows, which includes a metal bellows. Both ends of the metal bellows are fixedly connected with metal bellows interfaces. External threads are arranged on the outer walls of the metal bellows interfaces. A first connecting sleeve is threadedly connected to one of the metal bellows interfaces. A transfer box is fixedly connected to the side of the first connecting sleeve away from the metal bellows interface. A buffer plate is fixedly connected to the inner wall of the transfer box. A second connecting sleeve is fixedly connected to the side of the transfer box away from the first connecting sleeve.

[0007] By adopting the above technical solution, the connection of two metal bellows can be realized through the first connecting sleeve and the second connecting sleeve. When the liquid passes through the transfer box, the impact force of the liquid can be buffered by the buffer plate inside the transfer box, thereby slowing down the flow rate of the liquid, increasing the stability of the connection between the metal bellows, and avoiding loosening at the connection position and water leakage.

[0008] Optionally, internal threads adapted to the external threads on the metal bellows interfaces are provided on the inner walls of the first connecting sleeve and the second connecting sleeve.

[0009] By adopting the above technical solution, it is beneficial to the rapid disassembly and assembly of the metal bellows.

[0010] Optionally, a cavity is provided inside the transfer box.

[0011] By adopting the above technical solution, the impact force of the liquid can be slowed down by the increased cavity inside the transfer box.

[0012] Optionally, a plastic hose is snap-fitted inside the metal bellows.

[0013] By adopting the above technical solution, the impact of the liquid on the corrugations of the inner wall of the metal bellows can be slowed down by the plastic hose, and the service life of the metal bellows is extended.

[0014] Optionally, there are five buffer plates in total, and the five buffer plates are distributed in an annular shape.

[0015] By adopting the above technical solution, the impact of the flowing water is further buffered.

[0016] Optionally, both the first connecting sleeve and the second connecting sleeve are of a cylindrical structure, and the apertures of the first connecting sleeve and the second connecting sleeve are adapted to the diameter of the metal bellows interface.

[0017] By adopting the above technical solution, it is beneficial to improve the sealing performance when the metal bellows is connected to the first connecting sleeve and the second connecting sleeve.

[0018] Optionally, the buffer plate is a stainless steel metal plate.

[0019] By adopting the above technical solution, it is beneficial to improve the corrosion resistance of the buffer plate and extend the service life.

[0020] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0021] The technical solution of the present application can fix the first connecting sleeve and the second connecting sleeve through the transfer box. The first connecting sleeve and the second connecting sleeve can realize the connection of two metal bellows. When the liquid passes through the transfer box, the impact force of the liquid can be buffered by the cavity and the buffer plate inside the transfer box, thereby slowing down the flow rate of the liquid, increasing the stability of the connection between the metal bellows, and avoiding loosening at the connection and water leakage. Description of the Drawings

[0022] Other features, objectives, and advantages of the present utility model will become more apparent by reading the following detailed description of non - restrictive embodiments with reference to the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of an enhanced multi - layer metal bellows of the present utility model;

[0024] Figure 2 It is a schematic diagram of the separation structure of the metal bellows and the transfer box of an enhanced multi - layer metal bellows of the present utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the metal bellows of an enhanced multi - layer metal bellows of the present utility model;

[0026] Figure 4 It is a schematic diagram of the internal structure of the transfer box of an enhanced multi - layer metal bellows of the present utility model.

[0027] In the figure: 1, external thread; 2, metal bellows; 3, metal bellows interface; 4, first connecting sleeve; 5, transfer box; 6, second connecting sleeve; 7, internal thread; 8, plastic hose; 9, buffer plate; 10, cavity. Detailed implementation manners

[0028] Please refer to Figures 1-4 , the present utility model provides a technical solution: an enhanced multi - layer metal bellows, including a metal bellows 2. Both ends of the metal bellows 2 are fixedly connected with metal bellows interfaces 3. The outer wall of the metal bellows interface 3 is provided with an external thread 1. A first connecting sleeve 4 is threadedly connected to one of the metal bellows interfaces 3. The side of the first connecting sleeve 4 away from the metal bellows interface 3 is fixedly connected with a transfer box 5. The inner wall of the transfer box 5 is fixedly connected with a buffer plate 9. The side of the transfer box 5 away from the first connecting sleeve 4 is fixedly connected with a second connecting sleeve 6.

[0029] In the technical solution of the present utility model, as Figure 1 shown, the inner walls of the first connecting sleeve 4 and the second connecting sleeve 6 are both provided with internal threads 7 adapted to the external thread 1 on the metal bellows interface 3; which is beneficial to the rapid disassembly and assembly of the metal bellows 2.

[0030] In the technical solution of the present utility model, as Figure 4 shown, the inside of the transfer box 5 is provided with a cavity 10; the increased cavity 10 inside the transfer box 5 can slow down the impact force of the liquid.

[0031] In the technical solution of the present utility model, as Figure 3As shown, a plastic hose 8 is snap - connected inside the metal bellows 2; the plastic hose 8 can slow down the impact of the liquid on the corrugations of the inner wall of the metal bellows 2, extending the service life of the metal bellows 2.

[0032] In the technical solution of the present utility model, as Figure 4 shown, five buffer plates 9 are provided in total, and the five buffer plates 9 are distributed in an annular shape; further buffering the impact of the flowing water.

[0033] In the technical solution of the present utility model, as Figure 1 shown, both the first connecting sleeve 4 and the second connecting sleeve 6 are cylindrical structures, and the apertures of the first connecting sleeve 4 and the second connecting sleeve 6 are adapted to the diameter of the metal bellows interface 3; which is beneficial to improving the sealing performance when the metal bellows 2 is connected to the first connecting sleeve 4 and the second connecting sleeve 6.

[0034] In the technical solution of the present utility model, as Figure 4 shown, the buffer plate 9 is a stainless - steel metal plate; which is beneficial to improving the corrosion resistance of the buffer plate 9 and extending its service life.

[0035] During use, the first connecting sleeve 4 and the second connecting sleeve 6 can be fixed through the transfer box 5. The first connecting sleeve 4 and the second connecting sleeve 6 can realize the connection of two metal bellows 2. When the liquid passes through the transfer box 5, the impact force of the liquid can be buffered through the cavity 10 inside the transfer box 5 and the buffer plate 9, thereby slowing down the flow rate of the liquid, increasing the stability of the connection between the metal bellows 2, and avoiding loosening at the connection and water leakage.

[0036] The above - mentioned are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An enhanced multi-layer metal bellows, characterized in that: It includes a metal bellows (2), both ends of the metal bellows (2) are fixedly connected with metal bellows interfaces (3), an external thread (1) is arranged on the outer wall of the metal bellows interface (3), a first connecting sleeve (4) is threadedly connected to one of the metal bellows interfaces (3), a transfer box (5) is fixedly connected to the side of the first connecting sleeve (4) away from the metal bellows interface (3), a buffer plate (9) is fixedly connected to the inner wall of the transfer box (5), and a second connecting sleeve (6) is fixedly connected to the side of the transfer box (5) away from the first connecting sleeve (4).

2. An enhanced multi-layer metal bellows according to claim 1, wherein, Internal threads (7) adapted to the external thread (1) on the metal bellows interface (3) are arranged on the inner walls of the first connecting sleeve (4) and the second connecting sleeve (6).

3. An enhanced multi-layer metal bellows according to claim 1, wherein, A cavity (10) is arranged inside the transfer box (5).

4. An enhanced multi-layer metal bellows according to claim 1, characterized in that, A plastic hose (8) is snap-fitted inside the metal bellows (2).

5. An enhanced multi-layer metal bellows according to claim 1, characterized in that, There are five buffer plates (9) in total, and the five buffer plates (9) are distributed in an annular shape.

6. An enhanced multi-layer metal bellows according to claim 1, characterized in that, Both the first connecting sleeve (4) and the second connecting sleeve (6) are of a cylindrical structure, and the diameters of the first connecting sleeve (4) and the second connecting sleeve (6) are adapted to the diameter of the metal bellows interface (3).

7. An enhanced multi-layer metal bellows according to claim 1, wherein, The buffer plate (9) is a stainless steel metal plate.

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