Small-caliber high-pressure anti-explosion metal corrugated water pipe

Abstract

The utility model relates to the field of water pipes, and discloses a small-caliber high-pressure anti-explosion metal corrugated water pipe which comprises a corrugated pipe, a first core wire, a second core wire, a net sleeve, a protective sleeve, a first lantern ring and a second lantern ring, the first core wire and the second core wire are welded to the two ends of the corrugated pipe respectively, and the corrugated pipe is contained in the net sleeve. One end of the net sleeve is connected with the first core wire and forms a first connecting part at the joint, the other end of the net sleeve is connected with the second core wire and forms a second connecting part at the joint, the first connecting part and the second connecting part are sleeved with the first lantern ring and the second lantern ring respectively, and the first lantern ring and the second lantern ring press the net sleeve tightly. The protective sleeve is arranged on the net sleeve in a sleeving mode and wraps the first lantern ring and the second lantern ring. The net sleeve and the protective sleeve provide buffering and supporting double-layer protection for the corrugated pipe, the first lantern ring and the second lantern ring press the net sleeve to enable connection to be tighter, the strength, the pressure resistance and the anti-explosion performance of the water pipe are remarkably improved, the water pipe is not prone to breakage in the high-pressure environment and can bear external extrusion, and safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipes, in particular to a small-caliber high-pressure explosion-proof metal corrugated water pipe. Background Art

[0002] Many industrial applications, particularly in hydraulic systems, automotive braking systems, and high-pressure cleaning equipment, place extremely high demands on the safety and reliability of water pipes. Traditional water pipes are prone to bursting or leaking when subjected to high pressure, are unstable, and pose a safety hazard. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model provides a small-caliber, high-pressure, explosion-proof metal corrugated water pipe, comprising a bellows, a first welding core, a second welding core, a mesh sleeve, a protective sleeve, a first ring and a second ring. The first welding core and the second welding core are welded to the two ends of the bellows respectively, and the bellows is accommodated in the mesh sleeve. One end of the mesh sleeve is connected to the first welding core and a first connection portion is formed at the connection, and the other end of the mesh sleeve is connected to the second welding core and a second connection portion is formed at the connection. The first ring and the second ring are respectively sleeved on the first connection portion and the second connection portion, and the first ring and the second ring are both connected to the mesh sleeve and press the mesh sleeve. The protective sleeve is sleeved on the mesh sleeve and covers the first ring and the second ring.

[0004] Optionally, a joint nut is further included, wherein one end of the joint nut is provided with a flange extending inward, a first limiting portion and a second limiting portion are protruding from the outer peripheral wall of the first welding core, a limiting groove is formed between the first limiting portion and the second limiting portion, and the flange is limited in the limiting groove and is movably connected to the limiting groove.

[0005] Optionally, a third limiting portion is protruded from the outer peripheral wall of the second welding core, and two ends of the protective sleeve abut against the first limiting portion and the third limiting portion respectively.

[0006] Optionally, an end of the first welding core away from the bellows is connected to a first sealing ring, and the first sealing ring is accommodated in the joint nut.

[0007] Optionally, a mounting groove is recessed on the outer peripheral wall of the second welding core, and a second sealing ring is provided in the mounting groove.

[0008] Optionally, a first notch is provided at one end of the first welding core close to the bellows, and a second notch is provided at one end of the second welding core close to the bellows. Both the first notch and the second notch are used to reduce heat dispersion during welding.

[0009] Optionally, the bellows is made of stainless steel.

[0010] Optionally, the mesh sleeve is made of stainless steel wire.

[0011] Optionally, the protective cover is made of soft plastic.

[0012] Optionally, a first pressing groove is provided on the outer peripheral wall of the first welding core, a second pressing groove is provided on the outer peripheral wall of the second welding core, the first collar portion is accommodated in the first pressing groove, and the second collar portion is accommodated in the second pressing groove.

[0013] Compared to existing technologies, the small-diameter, high-pressure, explosion-proof metal corrugated water pipe in this utility model provides a double layer of protection between the bellows, the first welding core, and the second welding core by providing a mesh sleeve and a protective sleeve. Furthermore, the mesh sleeve is compressed by the first and second rings, making the connection tighter and significantly improving the overall strength, pressure resistance, and explosion resistance of the water pipe. During use, the mesh sleeve and protective sleeve provide cushioning and support for the bellows, preventing the water pipe from easily rupturing even under high pressure. The bellows and outer mesh sleeve can also withstand external pressure, ensuring the safe use of the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to an embodiment of the present utility model;

[0015] Figure 2 This is an exploded view of a small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to an embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional view of a small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to an embodiment of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0018] Figure 5 for Figure 3 Enlarged view of part B in the middle.

[0019] Description of reference numerals:

[0020] 1. Bellows; 2. First welding core; 21. First limiting portion; 22. Second limiting portion; 23. Limiting groove; 24. First sealing ring; 25. First notch; 26. First pressing groove; 3. Second welding core; 31. Third limiting portion; 32. Second sealing ring; 33. Second notch; 34. Second pressing groove; 4. Mesh sleeve; 5. Protective sleeve; 6. First ring; 7. Second ring; 8. Joint nut; 81. Flange. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0024] The utility model provides a small-caliber high-pressure explosion-proof metal corrugated water pipe, combined with Figure 1-5 As shown, it includes a bellows 1, a first welding core 2, a second welding core 3, a mesh sleeve 4, a protective sleeve 5, a first ring 6 and a second ring 7. The first welding core 2 and the second welding core 3 are welded to the two ends of the bellows 1 respectively, and the bellows 1 is accommodated in the mesh sleeve 4. One end of the mesh sleeve 4 is connected to the first welding core 2 and forms a first connection part at the connection, and the other end of the mesh sleeve 4 is connected to the second welding core 3 and forms a second connection part at the connection. The first ring 6 and the second ring 7 are respectively sleeved on the first connection part and the second connection part. The first ring 6 and the second ring 7 are both connected to the mesh sleeve 4 and press the mesh sleeve 4. The protective sleeve 5 is sleeved on the mesh sleeve 4 and covers the first ring 6 and the second ring 7.

[0025] like Figure 3-5 As shown, in this embodiment, the first ring 6 and the second ring 7 are pressed against the mesh sleeve 4 by a pressing device, so that the connection is tighter.

[0026] The small-diameter, high-pressure, explosion-proof metal corrugated water pipe of the present invention utilizes a mesh sleeve 4 and a protective sleeve 5 to provide a double layer of protection for the connection between the bellows 1, the first welding core 2, and the second welding core 3. Furthermore, the mesh sleeve 4 is compressed by the first and second rings 6 and 7, making the connection even tighter and significantly improving the overall strength, pressure resistance, and explosion resistance of the water pipe. During use, the mesh sleeve 4 and protective sleeve 5 provide cushioning and support for the bellows 1, preventing the water pipe from easily rupturing even under high pressure. The bellows 1 and outer mesh sleeve 4 can also withstand external compression, ensuring the safe use of the water pipe.

[0027] The small-diameter high-pressure explosion-proof metal corrugated water pipe also includes a joint nut 8, one end of which is provided with a flange 81 extending inward, and a first limiting portion 21 and a second limiting portion 22 are protruding from the outer peripheral wall of the first welding core 2, and a limiting groove 23 is formed between the first limiting portion 21 and the second limiting portion 22, and the flange 81 is limited in the limiting groove 23 and is movably connected to the limiting groove 23.

[0028] like Figure 2 As shown, in this embodiment, the joint nut 8 is provided with an internal thread, the joint nut 8 is rotatably connected to the first welding core 2, and the flange 81 can move back and forth axially in the limiting groove 23 to facilitate the joint nut 8 to connect to external equipment.

[0029] A third limiting portion 31 is protruded from the outer peripheral wall of the second welding core 3 , and two ends of the protective cover 5 abut against the first limiting portion 21 and the third limiting portion 31 respectively.

[0030] like Figure 2 and 5 As shown, in this embodiment, the third limiting portion 31 can also be used in conjunction with a wrench, and the wrench can clamp the third limiting portion 31 to make assembly more convenient.

[0031] One end of the first welding core 2 away from the corrugated tube 1 is connected to a first sealing ring 24 , and the first sealing ring 24 is accommodated in the joint nut 8 .

[0032] An installation groove is concavely formed on the outer peripheral wall of the second welding core 3 , and a second sealing ring 32 is disposed in the installation groove.

[0033] like Figure 2 and 3 As shown, in this embodiment, one end of the second welding core 3 is provided with an external thread, which is located to the left of the second sealing ring 32 and is used to connect to external equipment. The first sealing ring 24 and the second sealing ring 32 can ensure good sealing performance under high pressure.

[0034] The first welding core 2 is provided with a first notch 25 at one end thereof close to the corrugated tube 1 , and the second welding core 3 is provided with a second notch 33 at one end thereof close to the corrugated tube 1 . Both the first notch 25 and the second notch 33 are used to reduce heat dispersion during welding.

[0035] like Figure 4 and 5As shown, in this embodiment, when the welding tool heats the first welding core 2 and the corrugated tube 1, in order to prevent the temperature difference caused by the thinner corrugated tube 1 heating faster and the thicker first welding core 2 heating slower, the first notch 25 can concentrate the heat more at the end of the first welding core 2, thereby heating the end of the first welding core 2 faster and achieving a better welding effect with the corrugated tube 1. The second notch 33 is similar and will not be described in detail.

[0036] The bellows 1 is made of stainless steel, the mesh sleeve 4 is made of stainless steel wire, and the protective sleeve 5 is made of soft plastic.

[0037] like Figure 1 and 2 As shown, in this embodiment, the bellows 1 is made of high-strength stainless steel to increase overall strength and absorb impact energy, providing excellent corrosion resistance. The mesh 4 is made of stainless steel wire, which has high strength to withstand axial and radial forces and provides outer protection for the bellows 1. The protective cover 5 is made of soft plastic with a thickness of 0.8-1.0 mm, which makes the entire pipe surface have excellent corrosion and wear resistance.

[0038] A first pressing groove 26 is provided on the outer peripheral wall of the first welding core 2, and a second pressing groove 34 is provided on the outer peripheral wall of the second welding core 3. The first collar 6 is partially accommodated in the first pressing groove 26, and the second collar 7 is partially accommodated in the second pressing groove 34. The first collar 6 and the second collar 7 are both welded and fixed to the mesh sleeve 4.

[0039] like Figure 4 and 5 As shown, in this embodiment, the first pressing groove 26 facilitates the alignment of the first ring 6 when buckling, and the second pressing groove 34 facilitates the alignment of the second ring 7 when buckling. After the buckling is completed, the first ring 6, the first welding core 2 and the mesh sleeve 4 can be welded together, and the second ring 7, the second welding core 3 and the mesh sleeve 4 can be welded together to further enhance the stability of the connection structure and prevent the bellows 1 from extending and loosening the buckling position in a high-pressure environment.

[0040] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A small-caliber high-pressure explosion-proof metal corrugated water pipe, characterized in that: The invention comprises a bellows (1), a first welding core (2), a second welding core (3), a mesh sleeve (4), a protective sleeve (5), a first collar (6) and a second collar (7), wherein the first welding core (2) and the second welding core (3) are welded to two ends of the bellows (1), respectively, and the bellows (1) is accommodated in the mesh sleeve (4), one end of the mesh sleeve (4) is connected to the first welding core (2) and forms a first connection portion at the connection, and the other end of the mesh sleeve (4) is connected to the second welding core (3) and forms a second connection portion at the connection, the first collar (6) and the second collar (7) are respectively sleeved on the first connection portion and the second connection portion, the first collar (6) and the second collar (7) are both connected to the mesh sleeve (4) and press the mesh sleeve (4), and the protective sleeve (5) is sleeved on the mesh sleeve (4) and covers the first collar (6) and the second collar (7).

2. The small-diameter high-pressure explosion-proof metal corrugated water pipe according to claim 1, characterized in that: The invention also includes a joint nut (8), one end of which is provided with a flange (81) extending inward, a first limiting portion (21) and a second limiting portion (22) are convexly provided on the outer peripheral wall of the first welding core (2), a limiting groove (23) is formed between the first limiting portion (21) and the second limiting portion (22), and the flange (81) is limited in the limiting groove (23) and is movably connected to the limiting groove (23).

3. The small-diameter high-pressure explosion-proof metal corrugated water pipe according to claim 2, characterized in that: A third limiting portion (31) is convexly provided on the outer peripheral wall of the second welding core (3), and two ends of the protective sleeve (5) respectively abut against the first limiting portion (21) and the third limiting portion (31).

4. The small-diameter high-pressure explosion-proof metal corrugated water pipe according to claim 2, characterized in that: One end of the first welding core (2) away from the corrugated tube (1) is connected to a first sealing ring (24), and the first sealing ring (24) is accommodated in the joint nut (8).

5. The small-diameter high-pressure explosion-proof metal corrugated water pipe according to claim 1, characterized in that: An installation groove is recessed on the outer peripheral wall of the second welding core (3), and a second sealing ring (32) is provided in the installation groove.

6. The small-diameter high-pressure explosion-proof metal corrugated water pipe according to claim 1, characterized in that: A first notch (25) is provided at one end of the first welding core (2) close to the corrugated tube (1), and a second notch (33) is provided at one end of the second welding core (3) close to the corrugated tube (1). Both the first notch (25) and the second notch (33) are used to reduce heat dispersion during welding.

7. The small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to claim 1, characterized in that: The bellows (1) is made of stainless steel.

8. The small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to claim 1, characterized in that: The mesh sleeve (4) is made of stainless steel wire.

9. The small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to claim 1, characterized in that: The protective cover (5) is made of soft plastic material.

10. The small-diameter, high-pressure, explosion-proof metal corrugated water pipe according to any one of claims 1 to 9, characterized in that: A first pressing groove (26) is provided on the outer peripheral wall of the first welding core (2), and a second pressing groove (34) is provided on the outer peripheral wall of the second welding core (3); the first collar (6) is partially accommodated in the first pressing groove (26), and the second collar (7) is partially accommodated in the second pressing groove (34); the first collar (6) and the second collar (7) are both welded and fixed to the mesh sleeve (4).

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