Spring retraction device of 3d movement

Abstract

The invention discloses a spring retraction device of a 3D (three-dimensional) movement. The spring retraction device comprises a connecting sheet, an accommodating cavity, a spring and a push rod, wherein the connecting sheet comprises a top sheet and a side sheet which are integrally formed, and the top sheet and the side sheet form an L-shaped structure; the accommodating cavity is connected onto the top sheet; the spring is located in the accommodating cavity, and a through hole is formed in the top sheet; the push rod extends into the accommodating cavity, a bulged shoulder propped against the bottom of the spring is arranged on the push rod, and the top of the push rod can extend out of the through hole after the spring is extruded by the push rod. The spring retraction device for the 3D movement has the benefits as follows: when the spring retraction device is applied to the 3D movement of an electric massage chair and an outer motor drives the push rod to move up and down, the push rod can drive the whole accommodating cavity to move, the spring is arranged in the accommodating cavity, so that when the motor drives the whole spring retraction device to move, the movement speed becomes slower under the action of elastic buffer of the spring, accordingly, the whole 3D movement moves in a more balanced manner, the stiff feeling of a user during using of the spring retraction device is reduced, and the user experience can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of massage chairs, in particular to a spring contraction device for a 3D movement. Background technique [0002] As people pay more and more attention to health, more and more health care equipment such as massage sticks, massage chairs, massage machines, and therapeutic instruments have entered ordinary families. Get a massage. At present, if massage chairs in the domestic market need to realize multi-directional massage, they need to use 3D movement to massage in three directions. When the 3D movement is moving up and down, it is usually directly driven by a motor, but this direct drive will produce a certain rigid feeling and a feeling of frustration, which makes the user experience not good. Contents of the invention [0003] In order to solve the above problems, the present invention provides a spring contraction device capable of achieving effective buffering and making the movement of the 3D movem...

AI Technical Summary

Problems solved by technology

When the 3D movement is moving up and down, it is usually directly driven by the motor, but this kind of direct driving will produce a certain rigid feeling and a feeling of frustration, which makes the user experience not good

Images