Pressure-resistant metal hose
By using double-layer corrugated pipes, braided steel mesh sleeves and argon arc welding technology in metal hoses, the problems of reduced toughness and leakage of traditional metal hoses under high pressure are solved, achieving higher weld quality and pressure-bearing capacity. , enhancing the reliability and durability of the connection.
Patent Information
- Application Number
- CN202421467053.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Traditional metal hoses have reduced toughness at high pressure, reduced compensation capacity, and leakage of corrugated pipes and welds.
A pressure-resistant metal hose is designed, which adopts a double-layer bellows structure, with a braided steel mesh sleeve on the outer diameter, and the nozzle, locking ring and bellows are welded together by argon arc welding. This design increases the pressure-bearing capacity of the weld and provides additional sealing and leak-proof functions through extended rubber tubes, arc rings, and soft rubber rings.
It improves the weld quality and pressure-bearing capacity of the metal hose, enhances the reliability and durability of the connection, avoids the problem of shedding and water leakage of the external pipe, and improves the safety and reliability of the equipment.
Smart Images
Figure CN222392197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal hoses, in particular to a pressure-resistant metal hose. Background Art
[0002] Metal hoses are widely used in the piping systems of aviation, aerospace, nuclear power, shipbuilding, metallurgy and other industries. They are resistant to high pressure, high and low temperatures, and corrosion. They can not only transport various media, but also play the role of shock absorption, noise reduction, and flexible compensation.
[0003] However, with the progress and development of industry, the working conditions of metal hoses are becoming more and more severe, and the pressures they need to withstand are getting higher and higher. This will lead to a decrease in the toughness of traditional metal hoses, and thus a decrease in compensation capacity. In addition, bellows and welds are likely to leak under high pressure, so the quality requirements for bellows and welds are also becoming higher.
[0004] In view of the above problems, a pressure-resistant metal hose is proposed. Utility Model Content
[0005] The utility model aims to provide a pressure-resistant metal hose, which solves the problem that the toughness of the traditional metal hose in the background technology is reduced, thereby the compensation capacity is reduced, and the bellows and the weld are likely to leak under high pressure.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-resistant metal hose, comprising a bellows, both left and right ends of the bellows are sleeved with connecting pipes, the two connecting pipes are connected to the bellows through locking rings, the outer diameter of the bellows is sleeved with a braided steel mesh sleeve, and both ends of the braided steel mesh sleeve are connected to the two connecting pipes through outer rings;
[0007] An extended rubber tube is installed on one side of the outer ring on the right side, and extension plates are fixed at the top and bottom of the outer ring on the right side. The left sides of the two extension plates are penetrated and threaded with extension bolts, and the right ends of the two extension bolts are rotated with connecting blocks, and the opposite sides of the two connecting blocks are penetrated and threaded with clamping bolts, and the ends of the two clamping bolts adjacent to the extended rubber tube are rotated with arc circles.
[0008] As a further description of the above technical solution: a soft rubber ring is installed on one side of the two arc-shaped rings adjacent to the extended rubber tube.
[0009] As a further description of the above technical solution: the bellows adopts a double-layer setting.
[0010] As a further description of the above technical solution: the bellows, braided wire mesh sleeve, pipe, locking ring and outer ring are all made of 1Cr 18Made of Ni9Ti metal material.
[0011] As a further description of the above technical solution: the ports of the two locking rings both have an obtuse angle of 35°.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] 1. The utility model provides a pressure-resistant metal hose. By adjusting the extension bolts and the tightening bolts, the tightening arc ring part can adapt to external pipes of different positions and sizes and ensure a tight and stable connection. At the same time, the soft rubber ring provides additional sealing and leak-proof functions, thereby enhancing the reliability and durability of the connection. This design can effectively solve the problem of falling off and leakage of the external pipe, improve the safety and reliability of the equipment, and is very practical.
[0014] 2. The pressure-resistant metal hose provided by the utility model is different from the welding method of the pipe and bellows of the traditional metal hose in that the pipe of the pressure-resistant metal hose in the present application is an insert type, and a locking ring is put on the outside, and then the pipe, the locking ring and the bellows are welded together by argon arc welding. This welding method has a higher pressure bearing capacity and is more reliable;
[0015] Moreover, as an important component in the aerospace industry, the metal hose not only needs to transport media and compensate for displacement, but also needs to be able to withstand the increasingly high pipeline pressure of its engine. The utility model can effectively improve the weld quality and pressure-bearing capacity of the metal hose, and can better cope with various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view structural schematic diagram of the utility model;
[0017] Figure 2 It is a structural schematic diagram of the outer ring part and the externally connected pipeline of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the arc ring and the soft rubber ring of the utility model;
[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the corrugated pipe of the utility model;
[0020] Figure 5 for Figure 4 The enlarged view of point A in the middle;
[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the corrugated pipe of the utility model;
[0022] Figure 7 It is a structural schematic diagram of the locking ring of the utility model.
[0023] In the figure: 1. bellows; 2. braided wire mesh sleeve; 3. connecting pipe; 4. locking ring; 5. outer ring; 6. extension plate; 7. extension bolt; 8. connecting block; 9. tightening bolt; 10. arc ring; 11. extension rubber tube; 12. soft rubber ring. DETAILED DESCRIPTION
[0024] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.
[0026] Reference Figure 1-7 The utility model is a pressure-resistant metal hose, comprising a bellows 1, both left and right ends of the bellows 1 are sleeved with a pipe 3, the two pipes 3 are connected to the bellows 1 through a locking ring 4, the bellows 1, the pipe 3 and the locking ring 4 are welded together by argon arc welding, the outer diameter of the bellows 1 is sleeved with a braided steel mesh sleeve 2, the braided steel mesh sleeve 2 is outside the bellows and is used to bear pressure, the two ends of the braided steel mesh sleeve 2 are connected to the two pipes 3 through an outer ring 5, one side of the right outer ring 5 is installed with an extended rubber tube 11, the top of the right outer ring 5 and An extension plate 6 is fixed at the bottom, and the left sides of the two extension plates 6 are penetrated and threadedly connected with an extension bolt 7, and the right ends of the two extension bolts 7 are rotated with a connection block 8, and the opposite sides of the two connection blocks 8 are penetrated and threadedly connected with a tightening bolt 9, and the ends of the two tightening bolts 9 adjacent to the extended rubber tube 11 are rotated with an arc ring 10, and the sides of the two arc rings 10 adjacent to the extended rubber tube 11 are installed with a soft rubber ring 12; when an external pipe is required at both ends of the outer ring 5, first, the external pipe is sleeved on the outer diameter of the extended rubber tube 11 (such as Figure 2As shown), then by rotating the lengthening bolt 7, the lengthening bolt 7 and the extension plate 6 can be adjusted in length under the action of the thread, so that the connecting block 8 connected thereto can be adjusted to correspond to the interface of the external pipe, and then by rotating the tightening bolt 9, the tightening bolt 9 and the connecting block 8 can be extended and retracted under the action of the thread, so that the arc ring 10 connected thereto can be extended and retracted, so that the two arc rings 10 move in relative directions, so that the interface of the external pipe and the lengthening rubber tube 11 can be tightly fixed to avoid the external pipe from falling off and leaking during use. At the same time, the soft rubber ring 12 on the inner side of the arc ring 10 provides additional sealing and leak-proof functions. The soft rubber ring 12 can fill the gap at the connection to ensure a tight connection, prevent water leakage, and improve the stability and durability of the connection.
[0027] The pipe 3, the braided wire mesh sleeve 2 and the outer ring 5 are welded together by manual argon arc welding. The bellows 1 adopts a double-layer setting to seal the medium and compensate for displacement, and the straight edge sections of the sleeve locking ring 4 are retained at both ends to improve the pressure bearing capacity. The bellows 1, the wire mesh sleeve 2, the pipe 3, the locking ring 4 and the outer ring 5 are all made of 1Cr 18 Ni9Ti metal material, while 1Cr 18 The Ni9Ti metal material has the advantages of corrosion resistance, high temperature resistance, good processability, high strength and non-magnetism. The ports of the two locking rings 4 are both at an obtuse angle of 35°, and the obtuse angle of 35° makes it easier to insert the welding gun to ensure the welding quality.
[0028] Working principle: The bellows 1 is double-layered, used to seal the medium and compensate for displacement; the bellows 1, the connecting pipe 3 and the locking ring 4 are welded together by argon arc welding; the braided wire mesh sleeve 2 is on the outside of the bellows, used to bear pressure, and the connecting pipe 3, the braided wire mesh sleeve 2 and the outer ring 5 are welded together by manual argon arc welding; different from the welding method of the connecting pipe and the bellows of the traditional metal hose, the connecting pipe of the pressure-resistant metal hose in the present application is an insert type, and a locking ring 4 is put on the outside, and then The connecting pipe 3, the locking ring 4 and the bellows 1 are welded together by argon arc welding. This welding method has a higher pressure bearing capacity and is more reliable. When external pipes are required at both ends of the outer ring 5, (the various components of the outer diameter of the outer ring 5 and its extended rubber tube 11 are not limited to the right side of the bellows 1, but can be at both ends of the bellows 1, or at the left or right end of the bellows 1, and can be installed and used according to actual conditions), first, the external pipe is sleeved on the outer diameter of the extended rubber tube 11 (such as Figure 2As shown), then by rotating the extension bolt 7, the extension bolt 7 and the extension plate 6 can adjust the length of the extension bolt 7 under the action of the thread, so that the connecting block 8 connected thereto can be adjusted to be telescopically adjusted (since the connecting block 8 and the extension bolt 7 are in a rotational relationship, when the extension bolt 7 is rotated and adjusted, the connecting block 8 part will not rotate accordingly), so that it is adjusted to correspond to the interface of the external pipe, and then by rotating the tightening bolt 9, the tightening bolt 9 and the connecting block 8 can be extended and retracted under the action of the thread, so that the arc ring 10 connected thereto can be extended and retracted, so that the two arc rings 10 move in relative directions, so that the interface of the external pipe and the extension rubber tube 11 can be tightened and fixed, so as to avoid the external pipe from falling off and leaking during use. At the same time, the soft rubber ring 12 on the inner side of the arc ring 10 provides additional sealing and leak-proof functions. The soft rubber ring 12 can fill the gap at the connection, ensure a tight connection, prevent leakage, and improve the stability and durability of the connection.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pressure-resistant metal hose, comprising a corrugated tube (1), characterized in that: The left and right ends of the bellows (1) are both sleeved with connecting pipes (3), and the two connecting pipes (3) are connected to the bellows (1) via locking rings (4); the outer diameter of the bellows (1) is sleeved with a braided steel mesh sleeve (2), and the two ends of the braided steel mesh sleeve (2) are connected to the two connecting pipes (3) via outer rings (5); An extended rubber tube (11) is installed on one side of the outer ring (5) on the right side, and extension plates (6) are fixed at the top and bottom of the outer ring (5) on the right side. The left sides of the two extension plates (6) are penetrated and threadedly connected with extension bolts (7), and the right ends of the two extension bolts (7) are rotated with connecting blocks (8), and the opposite sides of the two connecting blocks (8) are penetrated and threadedly connected with tightening bolts (9), and the ends of the two tightening bolts (9) adjacent to the extended rubber tube (11) are rotated with arc rings (10).
2. A pressure-resistant metal hose according to claim 1, characterized in that: A soft rubber ring (12) is installed on one side of the two arc-shaped rings (10) adjacent to the extended rubber tube (11).
3. A pressure-resistant metal hose according to claim 1, characterized in that: The corrugated tube (1) adopts a double-layer arrangement.
4. A pressure-resistant metal hose according to claim 1, characterized in that: The bellows (1), the braided steel wire mesh sleeve (2), the connecting pipe (3), the locking ring (4) and the outer ring (5) are all made of 1Cr 18 Made of Ni9Ti metal material.
5. The pressure-resistant metal hose according to claim 1, characterized in that: The ends of the two locking rings (4) both have an obtuse angle of 35°.