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A damper and a washing machine

A damper, all-in-one technology, applied in other washing machines, washing devices, textiles and papermaking, etc., can solve safety problems and other problems, achieve the effect of simple structure, accurate design, and improved user experience

Pending Publication Date: 2018-07-10
QINGDAO HAIER WASHING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although some improvements have been made to the existing washing machine or other upper cover plates, the damper is added, but the damper generally adopts the damping oil damper. Due to the inherent problem of the principle, the damper needs a certain amount of time to damp the flow of oil. In the process of using the upper cover, if the user quickly opens the upper cover and then lets go, the damping will not work, which will lead to a series of safety problems

Method used

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  • A damper and a washing machine
  • A damper and a washing machine
  • A damper and a washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 with figure 2 As shown, the cam mechanism 4 described in this embodiment includes a first cam 41 and a second cam 42. The first cam 41 is connected to one end of the rotating shaft 3 and rotates together with the rotating shaft 3. Preferably, the first cam and the rotating shaft In an integral structure, the second cam 42 is connected with the stroke amplification mechanism 6, the first cam 41 and the second cam 42 are end face cams, and the two rotate relatively, and the contacting ends of the first cam 41 and the second cam 42 have mutually matching surface profile.

[0057] Specifically, the first cam 41 includes a cam portion 44 and a connecting portion 43, both of which rotate integrally, preferably in an integrated structure, and can also be pinned, and the connecting portion 43 is pinned to one end of the rotating shaft 3. Preferably, the connecting portion 43 is In a non-cylindrical structure, the rotating shaft 3 is correspondingly provided ...

Embodiment 2

[0062] This embodiment is not shown in the figure, and those skilled in the art can understand the technical solution through the following description. The buffering mechanism described in this embodiment provides a buffering force perpendicular to the axial direction of the rotating shaft; the cam mechanism converts the buffering force perpendicular to the axial direction provided by the buffering mechanism into a damping force in the rotating direction of the rotating shaft.

[0063] The cam mechanism includes a third cam, which is connected to one end of the rotating shaft and rotates integrally with the rotating shaft. The rotating peripheral surface of the third cam has a curved profile, and the lever short arm or moving rod is connected to the rotating peripheral surface of the third cam.

Embodiment 3

[0065] Such as figure 1 with figure 2 As shown, the buffer mechanism 5 of the present invention is a pneumatic / hydraulic buffer mechanism, including a pressure cylinder 52 and a piston rod 51. One end of the piston rod 51 is connected to the rotating pair of one end of the lever long arm 611, and the activity is located in the box body 7. One end is arranged in the pressure cylinder 52, and the pressure cylinder 52 is rotatably arranged in the box body 7, and one end of the pressure cylinder 52 and the opposite direction of the piston rod 51 is designed as a pin shaft fixed end 53, which is connected with the box body 7 pin shafts.

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PUM

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Abstract

The invention provides a damper and a washing machine. The damper comprises a rotating shaft, a cam mechanism, a buffer mechanism and a travel magnifying mechanism. The rotating shaft rotates around the axial direction; the buffer mechanism provides a buffer acting force; the cam mechanism is connected to the rotating shaft and converts the movement of relative rotation of the rotating shaft to linear reciprocating movement; the travel magnifying mechanism is connected with the cam mechanism and the buffer mechanism to magnify small travel movement of the cam mechanism to big travel movement of the buffer mechanism through transmission; the travel magnifying mechanism comprises a lever which can be divided into a short arm and a long arm with respect to a lever supporting point, one end ofthe long arm of the lever being connected with the buffer mechanism and one end of the short arm of the lever being connected with the cam mechanism. The travel magnifying mechanism converts smallermovement of the rotating shaft to bigger movement of the buffer mechanism and thus a sufficient damping force can be obtained accurately only through small-angle rotation of the rotating shaft, so that the safety of the product is improved and user experience is improved.

Description

technical field [0001] The invention relates to a hinge structure, in particular to a hinge structure of a washing machine, in particular to a damper for a washing machine. Background technique [0002] In the traditional washing machine, the cover and the upper frame of the casing are hinged by ordinary hinges, so the opening and closing of the cover has no buffer force, especially in the process of closing the cover, if you let go of your hand halfway, the cover will follow the action of gravity and inertial force The lower closes quickly and collides with the upper frame, making noise and even causing damage. For this reason, many existing patents have proposed solutions to the above-mentioned problems. [0003] For example, the Chinese patent application number CN1884672 discloses a cover structure of a washing machine and its manufacturing method. The cover structure of the washing machine includes: a cover main body; a buffer member surrounding the peripheral portion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F39/14D06F37/20
CPCD06F37/20D06F39/14
Inventor 吕佩师王得军纪虎张开宏刘尊安宋秀顺
Owner QINGDAO HAIER WASHING MASCH CO LTD