Automatic back scrubbing machine

Abstract

The invention relates to an automatic back scrubbing machine, comprising a back plate, a cover shell, a back scrubbing head and a large slider moving along the height direction of the back plate, wherein the large slider is of a hollow cuboid structure; the inner walls of the two sides of the large slider are respectively provided with a small slider seat guide groove; an inner cavity of the large slider is provided with a driving chain wheel, a driven chain wheel and a chain which connects the driving chain wheel and the driven chain wheel in a transmission manner; the driving chain wheel is arranged on an output shaft of a motor of the back scrubbing head; a chain wheel shaft of the driven chain wheel is supported on a bearing block; the motor of the back scrubbing head and the bearing block are arranged at the outer side of the bottom wall of the large slider; the chain is connected with a cylindrical boss lower block by a chain long pin; a boss upper block is sheathed outside the periphery of the boss lower block and is embedded in the back of a small slider seat; the two sides of the small slider seat are respectively positioned in the small slider seat guide grooves and can move respectively along the small slider seat guide grooves; the front surface of the small slider seat is connected with a small slider; and the top end of the small slider is fixedly connected with the back scrubbing head. A boss moves along the chain and drives the back scrubbing head to move up and down, so that a larger reciprocating stroke can be realized.

Description

technical field [0001] The invention relates to a bathing facility, in particular to an automatic back scrubbing machine. Background technique [0002] When people take a bath, it is inconvenient to scrub their backs, and they often need to ask others to help scrub their backs. Because of this, various bathing facilities to help scrub their backs have emerged as the times require. [0003] Most of the existing back rubbing machines use a single motor to directly connect with the back rubbing head through the output shaft, and drive the back rubbing head to rotate through the rotation of the motor, or drive the back rubbing head to do reciprocating motion through the crank linkage mechanism; On the exercise frame, the exercise frame is connected with the driving mechanism, and the driving mechanism drives the back rubbing head to move up and down, so as to realize the function of automatically scrubbing and massaging the back of the human body. [0004] The rotational moveme...

AI Technical Summary

Problems solved by technology

[0004] The rotating movement of the back rubbing head generates a rotational moment, which pushes the human body in the direction of the back rubbing head rotation, making people unstable and prone to slipping

When the position of the back rubbing head is fixed, the contact area with the back of the human body is small, resulting in unsatisfactory back rubbing effect

Therefore, the back rubbing head is driven to reciprocate through the crank linkage mechanism. While the back rubbing head is reciprocating, it can also move up and down as a whole to wipe all heights of the back, but the crank linkage mechanism can realize the reciprocating stroke. very small

And because the reciprocating movement of the back rubbing head needs to open a movement slot on the back rubbing machine cover, without paying attention, people's limbs are easy to reach into the back rubbing machine and be caught, causing harm to the human body

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