Anti-vibration metal hose

Abstract

The utility model relates to an anti-vibration metal hose, and belongs to the technical field of hoses specially suitable for metal manufacturing. Comprising a metal corrugated pipe of which one end is connected with a first joint and the other end is connected with an inner connecting pipe; the inner connecting pipe is connected with a second joint; the metal corrugated pipe is sleeved with a metal wire mesh sleeve, one end of the metal wire mesh sleeve is fixed to the connecting position of the first connector and the metal corrugated pipe through a first buckle, and the other end of the metal wire mesh sleeve is fixed to the connecting position of the second connector and the inner connecting pipe through a second buckle. The metal wire mesh sleeve is sleeved with a spring, one end of the spring is welded to the outer surface of the first buckle, and the other end of the spring is welded to the outer surface of the second buckle. The metal wire mesh sleeve is sleeved outside an existing metal corrugated pipe, then the spring is clamped outside the metal wire mesh sleeve through the first buckle and the second buckle, vibration borne by the anti-vibration metal hose is absorbed through the metal wire mesh sleeve and the spring, and the anti-vibration capacity of the metal hose is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-vibration metal hose, belong to the technical field (F16L33 / 26) of hose specially applicable to metal manufacturing. BACKGROUND

[0002] Metal hose is widely used in aerospace, automobile, mechanical equipment, oil and gas industry and other fields due to its unique wave structure, which has excellent adaptability when bearing thermal expansion and displacement, such as fuel pipeline in aero-engine, cooling and gas delivery system, automobile exhaust system, hydraulic pneumatic system in mechanical equipment, pipeline in oil and gas delivery system, and equipment in storage tank. The use of metal hose in the above systems can absorb and buffer vibration, reduce stress concentration and prolong the service life of the equipment. The current metal bellows has low anti-vibration and impact strength, which cannot meet the stress influence caused by long-term vibration in bending and twisting installation state, resulting in material fatigue and thread loosening. When the natural frequency and external vibration frequency resonate and the local temperature rises due to vibration friction, it will cause permanent deformation of the bellows, accelerate material aging and fatigue, reduce its flexibility and pressure resistance, cause poor sealing of the metal hose and connecting piece, and cause leakage problem. SUMMARY

[0003] The technical problem to be solved by the utility model is how to improve the anti-vibration ability of the metal hose.

[0004] To solve the above technical problems, the technical solution proposed by the utility model is: an anti-vibration metal hose, comprising a metal bellows, one end of the metal bellows is connected with a first connector, the other end is connected with an inner connector; the inner connector is connected with a second connector; a metal mesh sleeve is provided outside the metal bellows, one end of the metal mesh sleeve is fixed at the connection between the first connector and the metal bellows by a first buckle, the other end is fixed at the connection between the second connector and the inner connector by a second buckle; a spring is provided outside the metal mesh sleeve, one end of the spring is welded with the outer surface of the first buckle, the other end is welded with the outer surface of the second buckle.

[0005] Further, the first buckle and the second buckle are formed with a slope at one end of the metal bellows.

[0006] Furthermore, the first connector is a concave connector, and two first sealing lugs extend parallel to both sides from the mating end face of the first connector; a first sealing groove is formed on the sealing surface of the first sealing lug; the second connector is a convex connector, and second sealing lugs extend upward and downward from the root of the convex portion of the second connector; a second sealing groove corresponding to the first sealing groove is formed on the sealing surface of the second sealing lug; a third sealing groove is formed on the sealing surface of the convex portion of the second connector.

[0007] The beneficial effects of this utility model are as follows: This utility model involves covering the outside of an existing metal corrugated pipe with a metal wire mesh sleeve, and then securing a spring to the outside of the metal wire mesh sleeve with a first buckle and a second buckle. The metal wire mesh sleeve and the spring absorb the vibration of the anti-vibration metal hose, greatly improving the vibration resistance of the metal hose. Attached Figure Description

[0008] Figure 1 This is a structural schematic diagram of an anti-vibration metal flexible hose according to this utility model.

[0009] Figure 2 yes Figure 1 Enlarged view of section A.

[0010] Figure 3 yes Figure 1 Enlarged view of section B.

[0011] Figure 4 This is a schematic diagram showing the state of the anti-vibration metal hoses when they are connected in series in this embodiment of the present invention. Detailed Implementation

[0012] The following description, in conjunction with specific embodiments and accompanying drawings, further illustrates the vibration-resistant metal flexible hose of this utility model. Example

[0013] The vibration-resistant metal flexible hose in this embodiment, such as Figures 1 to 3 As shown, the device includes a metal corrugated pipe 1, with one end connected to a first connector 2 and the other end connected to an inner connector 3; the inner connector 3 is connected to a second connector 4; a metal wire mesh sleeve 5 is fitted over the metal corrugated pipe 1, with one end of the wire mesh sleeve 5 fixed to the connection between the first connector 2 and the metal corrugated pipe 1 by a first buckle 6, and the other end fixed to the connection between the second connector 4 and the inner connector 3 by a second buckle 7; a spring 8 is fitted over the metal wire mesh sleeve 5, with one end of the spring 8 welded to the outer surface of the first buckle 6 and the other end welded to the outer surface of the second buckle 7. The lower portions of the first buckle 6 and the second buckle 7 near the end of the metal corrugated pipe 1 are sloped.

[0014] The first joint is a female joint, and two first sealing lugs 21 are extended in parallel to two sides from the fitting end surface of the first joint 2. A first sealing groove 22 is formed on the sealing surface of the first sealing lug 21. The second joint 4 is a male joint, and two second sealing lugs 41 are extended upward and downward from the root of the protruding part of the second joint 4. A second sealing groove 42 corresponding to the first sealing groove 22 is formed on the sealing surface of the second sealing lug 41. A third sealing groove 43 is formed on the sealing surface of the protruding part of the second joint 4.

[0015] As shown in Figure 3 When the anti-vibration metal hose needs to be connected in series, the first joint 2 is inserted into the second joint 4, at this time, the first sealing lug 21 is combined with the second sealing lug 41, the first sealing groove 22 is folded with the second sealing groove 42, and the first sealing ring 9 is arranged between the folded first sealing groove 22 and the second sealing groove 42. The second sealing ring 10 is arranged in the third sealing groove 43 and combined with the inner wall of the concave part of the first joint 2. The first sealing lug 21 and the second sealing lug 41 are externally provided with a fixed clamp.

Claims

1. A vibration resistant metal hose characterized by: The utility model discloses a metal bellows, one end of the metal bellows is connected with a first joint, the other end is connected with an inner pipe, the inner pipe is connected with a second joint, the metal bellows is externally sleeved with a wire mesh sleeve, one end of the wire mesh sleeve is fixed at the joint of the first joint and the metal bellows through a first buckle, the other end is fixed at the joint of the second joint and the inner pipe through a second buckle, the wire mesh sleeve is externally sleeved with a spring, one end of the spring is welded with the outer surface of the first buckle, the other end is welded with the outer surface of the second buckle.

2. The anti-vibration metal hose according to claim 1, characterized by: The first buckle and the second buckle are formed with a slope close to one end of the metal bellows.

3. The anti-vibration metal hose according to claim 1, characterized by: The first joint is a female joint, two first sealing lugs are extended in parallel on the fitting end face of the first joint to two sides, a first sealing groove is formed on the sealing surface of the first sealing lug, the second joint is a male joint, second sealing lugs are extended upward and downward on the root of the protruding part of the second joint, a second sealing groove corresponding to the first sealing groove is formed on the sealing surface of the second sealing lug, and a third sealing groove is formed on the sealing surface of the protruding part of the second joint.

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