A spring wire for the interior of the gold extension tube of a vacuum cleaner
A spring wire, gold extension tube technology, applied in the direction of the suction hose, etc., can solve the problems of telescopic rebound defects, insufficient rebound, potential safety hazards of the spring wire, etc. long life effect
Active Publication Date: 2015-12-09
ZHENJIANG HUAYIN INSTR & ELECTRICAL EQUIP
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a spring wire for the interior of the gold extension tube of the vacuum cleaner, which can overcome the defect of telescopic springback in the prior art and avoid fatigue and insufficient springback caused by repeated use. situation, thus solving the potential safety hazard of the spring wire due to forced stretching
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with accompanying drawing.
[0013] As shown in the figure, a spring wire for the interior of the gold extension tube of a vacuum cleaner includes two sets of spring wires 1. The spring wire 1 includes a helical wire 2 and a metal spring 3. The helical wire 2 is composed of a helical coil 21 and a helical wire. The coil 21 consists of a helical wire body 22 at both ends, the metal spring 3 is arranged inside the helical coil 21, and is fixed on the helical wire body 22 through a crimping wire 4 buckle; the two groups of spring wires are divided into spring wires 11, 12, The spring wires 11 and 12 pass through each other's metal spring 3 parallel to each other, and are fixed with a tie-wrap 5 so that the two groups of spring wires form a whole at last.
[0014] Wherein, the effective number n1 of the spiral coil 21 is 9 circles, its free length H1 is 55 mm, and the outer diameter D1 is 18 mm; the effect...
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The invention relates to a spring wire used in the metal stretchable tube of a vacuum cleaner, which comprises two sets of spring wires, each spring wire comprises a helical wire and a metal spring, each helical wire comprises a helical coil and helical wire bodies on both ends of the corresponding helical coil, and each metal spring is arranged in the corresponding helical coil, and is fixed on the corresponding spring wire body by a wire fastener. The two sets of spring wires pass through the metal spring of each other in parallel, and are fixed by wire-bundling fasteners, and thereby the two sets of spring wires are integrated. The spring wire can overcome the defect of retraction in the prior art, and can prevent the circumstance that retraction is not in place due to fatigue and repetitive use, thus preventing potential safety hazards caused by the forced stretching of the spring wire.
Description
technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a spring wire used inside a metal extension pipe of a vacuum cleaner. Background technique [0002] At present, after a long period of use, the helical spring wire in the gold extension tube of the vacuum cleaner is prone to fatigue and cannot return to the original length level, resulting in the inability to rebound in place, which will eventually lead to telescopic failure. Forced expansion and contraction will cause damage to the internal conductor, which will pierce the insulation jacket and connect to the wall of the aluminum gold extension tube, posing a risk of electric shock to personnel. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a spring wire for the interior of the gold extension tube of the vacuum cleaner in view of the above disadvantages, which can overcome the defects of telescopic rebou...
Claims
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IPC IPC(8): A47L9/24
Inventor 陆昌伟蔡惠俊陈贵湘
Owner ZHENJIANG HUAYIN INSTR & ELECTRICAL EQUIP