CN215215141U

CN215215141U - Metal corrugated hose

Info

Publication number: CN215215141U
Application number: CN202121355477.3U
Authority: CN
Inventors: 付华孟; 张小华; 付建楷
Original assignee: Ruian Deshida Auto Parts Co ltd
Current assignee: Ruian Deshida Auto Parts Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

A corrugated metal hose comprises a corrugated pipe, a joint and a net sleeve, wherein the corrugated pipe and the joint are connected through an inner ring, pipe orifices are arranged at two ends of the corrugated pipe, a first slotted hole, a first self-fusing ring, a second slotted hole, a third slotted hole and a second self-fusing ring are arranged in the inner ring, the corrugated pipe is arranged in the first slotted hole through the pipe orifices, the joint is arranged in the third slotted hole, the pipe orifices of the corrugated pipe and the first self-fusing ring of the inner ring form a first welding ring through welding, the joint and the second self-fusing ring of the inner ring form a second welding ring through welding, two ends of the net sleeve are connected with the inner ring through an outer ring, and the third self-fusing ring of the outer ring, the net sleeve and the top of the end face of the inner ring facing one side of the joint form a third welding ring through welding; the utility model has the advantages of simple structure, reasonable in design, convenient processing, long service life, bulk strength are high, little to the bellows influence during the welding.

Description

Metal corrugated hose

Technical Field

The utility model relates to a metal collapsible tube, in particular to metal corrugated hose.

Background

The metal corrugated hose is one of metal hose series products, is a high-quality flexible pipeline in modern industrial pipelines, has the characteristics of good flexibility, fatigue resistance, high pressure bearing capacity, good temperature resistance, corrosion resistance, strong sealing performance and the like, and has much longer service life than other hoses (rubber hoses and plastic hoses); the composite material is widely applied to industries such as aviation, aerospace, petroleum, chemical engineering, steel, electric power, papermaking, building, rubber, textile printing and dyeing, medicine, food, transportation and the like; with the development of modern industry, the demand for high-quality and high-performance metal corrugated hoses is increasing. When the existing corrugated metal hose is produced, the joint butt is required to be fixed on the end face of the corrugated pipe, butt welding is carried out through the welding gun, when the corrugated metal hose adopting the structure is welded, the wall thickness of the corrugated pipe is thin, the high-temperature welding gun easily causes damage to the corrugated pipe and welding and inconvenience, the corrugated pipe and the welding ring of the joint are located on the outer sides of the corrugated pipe and the joint, the corrugated metal hose is caused to crack due to the fact that the gap between the corrugated pipe and the joint is expanded or even caused to be large due to the pressure inside the corrugated pipe when the corrugated metal hose is used, and therefore the service life of the corrugated metal hose is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art, the utility model provides a simple structure, reasonable in design, convenient processing, long service life, bulk strength are high, when welding, the corrugated metal pipe that influences for a short time.

The utility model provides a technical scheme that its technical problem adopted is: a corrugated metal hose comprises a corrugated pipe, wherein joints are connected with two ends of the corrugated pipe, the corrugated pipe is connected with the joints through inner rings, pipe orifices are arranged at two ends of the corrugated pipe, a first slotted hole, a second slotted hole and a third slotted hole are sequentially arranged in the inner ring from the corrugated pipe to the joint along the axial direction of the inner ring, a first self-fusing ring is arranged in the second slotted hole between the first slotted holes, the corrugated pipe is arranged in the first slotted hole through the pipe orifices, the joints are arranged in the third slotted holes, a second self-fusing ring is arranged at the bottom of the end face of the inner ring facing one side of the joints, the pipe orifices of the corrugated pipe and the first self-fusing ring of the inner ring form first welding rings through welding, the second self-fusing rings of the joints and the inner ring form second welding rings through welding, a net sleeve is sleeved on the corrugated pipe and the outer side of the inner ring, and two ends of the net sleeve are connected with the inner ring through outer rings, and a third self-fusing ring protruding out of the top of the inner ring is arranged on one side of the outer ring facing the joint, and the third self-fusing ring, the mesh sleeve and the top of the end face of the inner ring facing one side of the joint form a third welding ring through welding.

Preferably, the center lines of the first slot, the second slot, the third slot, the first self-fluxing ring and the second self-fluxing ring are on the same straight line.

Preferably, the diameter of the second slot is the same as the inner diameter of the joint, and the diameter of the second slot is smaller than the diameters of the first slot and the third slot.

Preferably, an end surface of the inner ring facing the joint has a slope structure inclined in a direction of the bellows.

Preferably, the net cover is woven by metal strips.

Preferably, the tangent planes of the first welding ring and the third welding ring are of convex arc structures, and the tangent plane of the second welding ring is of concave arc structures.

Preferably, the first welding ring, the second welding ring and the third welding ring are all in a circular ring structure.

The utility model discloses a set up the inner circle between bellows and joint, and establish the mouth of pipe and the joint cover of bellows in the inner circle respectively, still set up on the inner circle and be used for welded fastening inner circle and bellows, the first self-fluxing ring of joint, the second is from the fluxing ring, make the mouth of pipe of bellows, the clearance avoids appearing between the inner circle, the hole of joint through welding back, keep smooth, damage to the bellows when also having avoided welding, the production degree of difficulty has been reduced, form the third welding ring through the third self-fluxing ring and the net cover of outer lane, the top of inner circle through the welding, make the outer lane, the net cover, the inner circle, the surface of joint form smooth connection structure through the second welding ring, the third welding ring, the intensity of corrugated metal hose has been guaranteed, the aesthetic property of corrugated metal hose has also been increased; the utility model has the advantages of simple structure, reasonable in design, convenient processing, long service life, bulk strength are high, little to the bellows influence during the welding.

Drawings

Fig. 1 is a schematic structural diagram of a finished product of an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic view of an assembly structure of an embodiment of the present invention;

fig. 4 is an enlarged view of fig. 3B according to the present invention;

fig. 5 is a schematic structural view of the inner ring of the present invention.

In the figure: 1. a bellows; 11. a pipe orifice; 2. a joint; 3. an inner ring; 31. a first slot; 32. a second slot; 33. a third slot; 34. a first self-fluxing ring; 35. a second self-fluxing ring; 36. a first weld ring; 37. a second weld ring; 38. a third self-fluxing ring; 39. a third weld ring; 4. a net cover; 5. and an outer ring.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 to 5, a corrugated metal hose includes a corrugated tube 1, two ends of the corrugated tube 1 are connected to joints 2, the corrugated tube 1 is connected to the joints 2 through inner rings 3, two ends of the corrugated tube 1 are provided with pipe orifices 11, a first slot 31, a second slot 32, and a third slot 33 are sequentially arranged in the inner rings 3 along the axial direction from the corrugated tube 1 to the joints 2, the second slot 32 between the first slots 31 is provided with a first self-fluxing ring 34, the corrugated tube 1 is arranged in the first slot 31 through the pipe orifices 11, the joints 2 are arranged in the third slot 33, the diameter of the second slot 32 is the same as the inner diameter of the joints 2, the diameter of the second slot 32 is smaller than the diameters of the first slot 31 and the third slot 33, the end surface of the inner rings 3 facing the joints 2 is an inclined plane structure inclined towards the corrugated tube 1, the bottom of the end face of the inner ring 3 facing the joint 2 is provided with a second self-fusing ring 35, the center lines of the first slotted hole 31, the second slotted hole 32, the third slotted hole 33, the first self-fusing ring 34 and the second self-fusing ring 35 are on the same straight line, the pipe orifice 11 of the corrugated pipe 1 and the first self-fusing ring 34 of the inner ring 3 form a first welding ring 36 through welding, the second self-fusing rings 35 of the joint 2 and the inner ring 3 form a second welding ring 37 through welding, the corrugated pipe 1 and the outer side of the inner ring 3 are sleeved with a net cover 4, the net cover 4 is woven by metal strips, two ends of the net cover 4 are connected with the inner ring 3 through an outer ring 5, one side of the outer ring 5 facing the joint 2 is provided with a third self-fusing ring 38 protruding out of the top of the inner ring 3, the top of the third self-fusing ring 38 of the outer ring 5, the net cover 4 and the end face of the inner ring 3 facing the joint 2 are welded to form a third welding ring 39, the section of the first welding ring 36 and the section of the third welding ring 39 are of convex arc structures, the section of the second welding ring 37 is of concave arc structures, and the first welding ring 36, the second welding ring 37 and the third welding ring 39 are of circular ring structures.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. The utility model provides a corrugated metal hose, includes bellows (1), the both ends of bellows (1) are connected with joint (2), its characterized in that: the corrugated pipe (1) is connected with the joint (2) through the inner ring (3), pipe orifices (11) are arranged at two ends of the corrugated pipe (1), a first slotted hole (31), a second slotted hole (32) and a third slotted hole (33) are sequentially arranged in the inner ring (3) from the corrugated pipe (1) to the joint (2) along the axial direction of the inner ring, a first self-fusing ring (34) is arranged in the second slotted hole (32) between the first slotted holes (31), the corrugated pipe (1) is arranged in the first slotted hole (31) through the pipe orifices (11), the joint (2) is arranged in the third slotted hole (33), a second self-fusing ring (35) is arranged at the bottom of the end face of the inner ring (3) facing one side of the joint (2), the pipe orifices (11) of the corrugated pipe (1) and the first self-fusing ring (34) of the inner ring (3) form a first welding ring (36) through welding, and the joint (2), The second of inner circle (3) is from fused ring (35) and is formed second welded ring (37) through the welding, bellows (1) and inner circle (3) outside cover are equipped with net cover (4), the both ends of net cover (4) are connected with inner circle (3) through outer lane (5), outer lane (5) are equipped with the third of salient in inner circle (3) top from fused ring (38) towards joint (2) one side, the third of outer lane (5) is from fused ring (38), net cover (4), inner circle (3) and forms third welded ring (39) through the welding towards the top of the terminal surface of joint (2) one side.

2. The metal bellows according to claim 1, wherein: the central lines of the first slotted hole (31), the second slotted hole (32), the third slotted hole (33), the first self-melting ring (34) and the second self-melting ring (35) are on the same straight line.

3. The metal bellows according to claim 1, wherein: the diameter of the second slotted hole (32) is the same as the inner diameter of the joint (2), and the diameter of the second slotted hole (32) is smaller than the diameters of the first slotted hole (31) and the third slotted hole (33).

4. The metal bellows according to claim 1, wherein: the end face of the inner ring (3) facing one side of the joint (2) is of an inclined surface structure inclined towards the corrugated pipe (1).

5. The metal bellows according to claim 1, wherein: the net sleeve (4) is formed by weaving metal strips.

6. The metal bellows according to claim 1, wherein: the section of the first welding ring (36) and the section of the third welding ring (39) are of convex arc structures, and the section of the second welding ring (37) is of concave arc structures.

7. The metal bellows according to claim 1, wherein: the first welding ring (36), the second welding ring (37) and the third welding ring (39) are all in a circular ring structure.