Liquid soap dispenser with controls positive and reverse rotations of motor and liquid discharge amount through angle counting

• US 9,993,120 B2
• Filed: 08/08/2014
• Issued: 06/12/2018
• Est. Priority Date: 06/30/2014
• Status: Active Grant

• Current Assignee: Shenzhen Smarlean Hygiene Co., Ltd.
• Original Assignee: Shenzhen Smarlean Hygiene Co., Ltd.
• Inventors: Xie, Huoxian
• Primary Examiner(s): PANCHOLI, VISHAL J
• Application Number:
  US15/323,109
• Publication Number:
  US 20170156549A1
• Time in Patent Office: 1,404 Days
• Field of Search: 222 30, 222 52, 222 63, 222258, 222333, 222626, 222630
• CPC Class Codes: A47K 5/1211 using pressure on soap, e.g. with piston A47K5/1201 takes precedence; by squeezing A47K5/122
• CPC Class Codes: A47K 5/1217 Electrical control means for the dispensing mechanism
• CPC Class Codes: F04B 13/00 Pumps specially modified to deliver fixed or variable measured quantities
• CPC Class Codes: F04B 17/03 driven by electric motors
• CPC Class Codes: F04B 19/22 of reciprocating-piston type
• CPC Class Codes: F04B 2201/1208 Angular position of the shaft
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 9/02 the means being mechanical

Abstract

A liquid soap dispenser, which controls positive and reverse rotations of a motor and a liquid discharge amount through angle counting, includes a front cover, a back cover, a liquid soap bottle, a pump component, a main engine and a key. An angle counter is arranged in the main engine. The liquid soap dispenser is connected with the motor. The angle counter is driven to rotate through the motor, so as to measure a rotation angle of the motor. The motor is connected with a gearbox, and the gearbox is connected with an output gear. The output gear is fastened at a lower part of the pump component, and the pump component is driven to move through the output gear. The liquid soap dispenser realizes a stepless adjustment of the liquid discharge amount through controlling the motor to reversely rotate.

Claims

1. A liquid soap dispenser which controls positive and reverse rotations of a motor and a liquid discharge amount through angle counting, comprising:

a front cover, a back cover, a liquid soap bottle, a pump component, and a main engine, wherein;

the liquid soap dispenser further comprises an angle counter;

the liquid soap dispenser is connected with the motor, and the angle counter is driven to rotate through the motor, thereby measuring a chosen angle;

the motor is connected with a gearbox, and the gearbox is connected with an output gear;

the output gear is fastened at a lower part of the pump component, and the pump component is driven to move through the output gear.

2. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 1, wherein the angle counter and the motor are coaxially arranged.

3. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 1, wherein:

the angle counter comprises an angle counting gear, a photosensitive element and a support board;

an edge of the angle counting gear has multiple light transmitting slits;

the photosensitive element is arranged at a periphery of the angle counting gear and judges an angle chosen by the angle counting gear through sensing lights transmitted through the light transmitting slits; and

the support board is for fixing and supporting the angle counting gear and the photosensitive element.

4. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 3, wherein the light transmitting slits are uniformly provided at the edge of the angle counting gear according to a certain angle.

5. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 3, wherein the support board is a printed circuit board (PCB) and electrically connected with the photosensitive element and a control circuit.

6. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 3, wherein the light transmitting slits are triangular, square, trapezoidal, circular or elliptic.

7. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 1, wherein:

the output gear has a shaft;

a convex reciprocating motion mechanism is fixed on the shaft along a radial direction of the shaft;

the reciprocating motion mechanism is fastened at the lower part of the pump component, for controlling a liquid pumping and sucking action of the pump component.

8. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 7, wherein:

the reciprocating motion mechanism is two occlusion teeth which extend outward along the radial direction of the shaft of the output gear;

an appropriate slot is provided between the occlusion teeth, for allowing the lower part of the pump component to pass through; and

, the occlusion teeth are both stuck on a convex part at the lower part of the pump component, so as to drive the pump component to move back and forth.

9. The liquid soap dispenser which controls the positive and reverse rotations of the motor and the liquid discharge amount through angle counting, as recited in claim 1, wherein:

the gearbox comprises a power gear and a transmission gear;

the power gear is sleeved on a shaft of the motor and meshes with the transmission gear;

the transmission gear meshes with the output gear for controlling the pump component;

the gearbox further comprises a protection shell for separating the power gear from the motor; and

, the power gear and the transmission gear are arranged on the protection shell.