Metal corrugated hose end connecting structure capable of avoiding torsion and metal corrugated hose
A technology for metal corrugated pipes and corrugated hoses, which is used in hose connection devices, pipes/pipe joints/pipes, mechanical equipment, etc., can solve problems such as low installation efficiency, inability to manufacture, and rupture and leakage of metal corrugated hoses. Achieve the effect of avoiding breakage and increasing the number of weld passes
Pending Publication Date: 2022-03-22
川润液压技术(江苏)有限公司
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Problems solved by technology
The existence of this phenomenon will greatly increase the risk of metal corrugated hose breakage and leakage. After twisting, the installer needs to readjust the metal corrugated hose, which takes a long time and has low installation efficiency. The hose is fully adjusted to its natural state, and the adjusted metal corrugated hose is usually slightly twisted, which may increase the risk of metal corrugated hose breaking and leakage due to continuous stress under long-term use
However, the joints of metal corrugated hoses used in the prior art are all thin-walled tubes, which cannot be used for clamping and anti-twisting structures.
Method used
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Embodiment 1
[0026] Embodiment 1: as image 3 As shown, the joint chamfering length is 12mm, the joint chamfering angle is 4 degrees, the diameter after chamfering is about 53.3mm, the inner circle chamfering hex nut 2 has a thickness of 10mm, and the diameter of the nut chamfering is increased by 0.2mm, that is 53.5mm, nut chamfer 3 degrees, can achieve interference fit through tooling. After the mating is completed, the end of the thin-walled end 7 of the joint will exceed the end face of the inner chamfered hexagonal nut 2, and the excess part and the ring 3 can be welded on one side and double-sided forming, and will not be welded to the inner rounded hexagonal nut 2 during welding. The seam also acts as an anchor point for the hex nut.
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The invention discloses a torsion-preventing metal corrugated hose end connecting structure which comprises a connector, a circular ring and a metal corrugated pipe, one end of the circular ring is welded to the metal corrugated pipe, the other end of the circular ring is welded to the end of the thin-wall end of the connector, and the thin-wall end of the connector is sleeved with an inner circle chamfer hexagonal nut. The sleeve connection is in interference fit through a chamfering structure, the thin-wall end of the connector penetrates through the inner circle chamfering hexagonal nut, then the end of the connector is located on the outer side of the inner circle chamfering hexagonal nut, and an exposed port of the thin-wall end of the connector is welded to the circular ring. The invention further provides a novel metal corrugated hose end connecting structure capable of avoiding torsion and a novel metal corrugated hose capable of avoiding torsion when the end is connected with an external structure.
Description
technical field [0001] The invention relates to the technical field of general hydraulic devices, in particular to a metal corrugated hose end connection structure and a metal corrugated hose that avoid torsion. Background technique [0002] When one or both ends of the metal corrugated hose are connected by nuts, it can be connected to the box through the end transition joint. At this time, the metal corrugated hose tends to rotate and twist. The existence of this phenomenon will greatly increase the risk of metal corrugated hose breakage and leakage. After twisting, the installer needs to readjust the metal corrugated hose, which takes a long time and has low installation efficiency. The pipe is fully adjusted to its natural state, and the adjusted metal corrugated hose is usually slightly twisted, which may increase the risk of metal corrugated hose breakage and leakage due to continuous stress under long-term use. However, the joints of the metal corrugated hoses used ...
Claims
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IPC IPC(8): F16L33/26F16L35/00
CPCF16L33/26F16L35/005
Inventor 王静颜克君
Owner 川润液压技术(江苏)有限公司
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