CN110777515B

CN110777515B - Detergent dispenser

Info

Publication number: CN110777515B
Application number: CN201910943977.XA
Authority: CN
Inventors: 刘岩松; 许鸿敏; 陈舟; 王知刚; 洪林荣; 周庆中; 冯志杰; 陈红鸯
Original assignee: Hangzhou Goldfish Electric Group Co ltd; Hangzhou Goldcosmos Electronic Co ltd
Current assignee: Hangzhou Goldfish Electric Group Co ltd; Hangzhou Goldcosmos Electronic Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-09-07
Anticipated expiration: 2039-09-30
Also published as: CN110777515A

Abstract

The invention relates to the field of washing machines, in particular to a detergent dispenser. It includes motor and two delivery pumps, be equipped with inlet and liquid outlet on the delivery pump, the delivery pump includes cavity and the sliding push rod that sets up in the cavity, the motor passes through drive arrangement drive push rod and slides, the push rod is used for the detergent propelling movement to the liquid outlet that gets into from the inlet, drive arrangement includes the reverse wheel by motor drive, be equipped with two elasticity plectrums that stretch out on the reverse wheel, two elasticity plectrums extend along opposite direction, elasticity plectrum and push rod one-to-one, the elastic component setting is passed through on the casing of delivery pump to the one end of push rod, during motor corotation, one of them elasticity plectrum jack-up corresponding push rod, during the motor reversal, another elasticity plectrum jack-up corresponding another push rod. The invention improves the structure of the double-cavity gear pump, improves the stress condition of the detergent extrusion piece, ensures the use performance of the detergent extrusion piece, simplifies the structure of the double-cavity gear pump and saves the cost.

Description

Detergent dispenser

Technical Field

The invention relates to the field of washing machines, in particular to a detergent dispenser.

Background

The washing machine is a widely used household appliance, the washing machine generally comprises a machine body, a washing barrel is arranged in the machine body, a detergent dispenser is generally arranged on the washing machine and used for adding detergent into the washing barrel, the conventional double-cavity gear pump is a device which is frequently used in an automatic detergent dispenser and can simultaneously meet the requirement of independent dispensing of two kinds of detergent, the rotation of a gear is converted into the stretching of a detergent extrusion piece, a crank slide block mechanism is generally adopted, the stability of a crank slide block is poor (a connecting rod is always in a swinging state), the stress direction of the detergent extrusion piece is uneven, the service life and the service performance of the detergent extrusion piece cannot be guaranteed, in addition, the double-cavity gear pump realizes single-motor double control by means of a ratchet structure, the structure is complex, the number of components is large, and the cost is high.

Disclosure of Invention

Based on the defects that the stability of the double-cavity gear pump on the washing machine is poor, the stress direction of the detergent extrusion piece is uneven, the service life and the use performance of the detergent extrusion piece cannot be guaranteed, the structure is complex, and the cost is high in the prior art, the invention provides the detergent dispenser, which improves the structure of the double-cavity gear pump, improves the stress condition of the detergent extrusion piece, prolongs the service life of the detergent extrusion piece, guarantees the use performance of the detergent extrusion piece, simplifies the structure of the double-cavity gear pump, and saves the cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a detergent dispenser, including motor and two delivery pumps, be equipped with inlet and liquid outlet on the delivery pump, the delivery pump includes cavity and slides the push rod that sets up in the cavity, the motor passes through drive arrangement drive push rod and slides, the push rod is used for the detergent propelling movement to the liquid outlet that gets into from the inlet, drive arrangement includes the reverse wheel by motor drive, be equipped with two elasticity plectrums that stretch out on the reverse wheel, two elasticity plectrums extend along opposite direction, elasticity plectrum and push rod one-to-one, the elastic component setting is passed through on the casing of delivery pump to the one end of push rod, when motor corotation, the corresponding push rod of one of them elasticity plectrum jack-up, when the motor reverses, another elasticity plectrum jack-up corresponding another push rod. Detergent enters the cavity from the liquid inlet, the motor drives the reversing wheel to rotate along one direction, because the extending directions of the elastic plectrum are different, one of the elastic plectrum can jack the corresponding push rod, the other elastic plectrum can be rotated by being attached to the push rod, at the moment, the two elastic plectrums can not jack the other push rod, but when the motor rotates reversely, the situation is opposite, the previously immovable push rod can be pushed by the corresponding elastic plectrum, the other push rod is kept immovable, the push rod can return under the action force of the elastic part after being jacked, so that the push rod can slide back and forth in the cavity, thrust is applied to the detergent in the cavity, the detergent is stably pushed to the liquid outlet and extruded by the detergent extrusion part, the motor controls the rotating speed of the reversing wheel, namely the sliding speed of the push rod can be controlled, and the conveying speed of the detergent and the addition amount can be correspondingly controlled, because the direction of motion of push rod is the linear type, the atress direction of detergent extruded article is single and stable, be difficult to fatigue damage, performance and life homoenergetic obtain guaranteeing, this scheme only cooperates with the push rod through a reverse wheel, just can realize when the motor corotation, one of them delivery pump work, another delivery pump stop work, when the motor reversal, the delivery pump stop work of previous work, another delivery pump begins work, realize single motor two accuse, two delivery pumps can conveniently add different detergents, realize the technical effect of two-chamber gear pump among the prior art, the structure is simplified, and the cost is saved.

Preferably, one of the elastic shifting pieces extends clockwise and outwards to form an arc shape, and the other elastic shifting piece extends anticlockwise and outwards to form an arc shape. Corresponding to the clockwise or anticlockwise rotation of the reversing wheel, the elastic poking pieces can rotate along the working push rod (namely the push rod capable of sliding back and forth) due to the shape of the elastic poking pieces, the working push rod cannot be pushed, the two elastic poking pieces can smoothly pass through the non-working push rod (namely the stopped push rod) due to the deformation of the two elastic poking pieces, and the interference is not easy to generate.

Preferably, the side wall of the push rod is provided with an arc-shaped recess matched with the elastic shifting piece in shape, and when the reversing wheel rotates, the arc-shaped recess is used for the elastic shifting piece to enter and pass through. When the elastic poking sheet passes through the non-working push rod, the arc-shaped recess is beneficial to the arc-shaped elastic poking sheet to enter and pass through, so that the possibility of interference between the elastic poking sheet and the non-working push rod is further reduced.

Preferably, the two push rods are symmetrically distributed on two sides of the reversing wheel. The reversing wheel is guaranteed to work stably, and the symmetrical structure can guarantee that the working conditions of the working push rods are consistent.

Preferably, the sliding direction of the push rod is parallel to the length direction of the cavity. The sliding direction of the push rod is consistent with the length direction of the cavity, friction between the push rod and the cavity is reduced, the stress direction of the detergent extrusion piece is single and stable, fatigue damage is not easy to occur, and usability and service life can be guaranteed.

Preferably, the conveying pump is provided with a guide part, the guide part is provided with a guide groove, the length direction of the guide groove is parallel to the length direction of the cavity, and the push rod is arranged in the guide groove in a sliding manner. The guide groove has a guide effect on the sliding of the push rod, and the stability of the sliding direction of the push rod is maintained, so that the push rod can powerfully push the detergent in the cavity.

Preferably, the end part of the push rod is provided with a leather cup, one end of the leather cup is fixed on the cavity, the other end of the leather cup is fixed on the push rod, and the liquid inlet and the liquid outlet are communicated with the leather cup. The leather cup is used as a detergent extrusion part to replace a corrugated pipe in the conventional technology, and because the acting force direction of the push rod is single and fixed, the leather cup with lower cost and better flexibility can be selected, and the service performance and the service life can be ensured.

Preferably, the liquid inlet and the liquid outlet are both provided with one-way valves, and the mounting direction of the one-way valves on the liquid inlet is opposite to that of the one-way valves on the liquid outlet. The one-way valve is opened to realize liquid inlet of the liquid inlet or liquid outlet of the liquid outlet, and meanwhile, the detergent in the cavity can be prevented from leaking to the outside through the liquid inlet or liquid in the washing barrel flows back to the cavity through the liquid outlet, the detergent in the liquid inlet can only enter, and the detergent in the liquid outlet can only exit.

Preferably, the liquid outlet is communicated with a washing barrel of the washing machine. The detergent that the liquid outlet came out directly gets into the washtub and washs the clothing, convenient and fast.

The invention has the beneficial effects that: detergent enters the cavity from the liquid inlet, the motor drives the reversing wheel to rotate along one direction, because the extending directions of the elastic plectrum are different, one of the elastic plectrum can jack the corresponding push rod, the other elastic plectrum can be attached to the push rod to rotate, at the moment, the two elastic plectrums can not jack the other push rod, but when the motor rotates reversely, the situation is opposite, the previously immobile push rod can be pushed by the corresponding elastic plectrum, the other push rod can be kept immobile, the push rod can return under the action force of the elastic part after being jacked, so that the push rod can slide back and forth in the cavity to apply thrust to the detergent in the cavity, the detergent is stably pushed to the liquid outlet and extruded by the detergent extrusion part, single-motor double-control is realized, different detergents can be conveniently added by the two conveying pumps, and the technical effect of the double-cavity gear pump in the prior art is realized, the structure is simplified, the cost is saved, the rotating speed of the motor control reversing wheel can control the sliding speed of the push rod, the conveying speed of the detergent and the addition amount of the detergent can be correspondingly controlled, the moving direction of the push rod is linear, the stress direction of the detergent extrusion piece is single and stable, the detergent extrusion piece is not easy to fatigue damage, and the service performance and the service life can be guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the following drawings without inventive labor.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view a-a of fig. 1.

Reference numerals: the device comprises a motor 1, a delivery pump 2, a liquid inlet 21, a liquid outlet 22, a cavity 3, a push rod 4, an arc-shaped recess 41, a guide part 42, a leather cup 43, a reversing wheel 5, an elastic shifting sheet 51, an elastic part 52 and a one-way valve 6.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A detergent dispenser according to an embodiment of the present invention will be described with reference to the accompanying drawings, as shown in figures 1 and 2,

the utility model provides a detergent dispenser, including motor 1 and two delivery pump 2, be equipped with inlet 21 and liquid outlet 22 on the delivery pump, the delivery pump includes cavity 3 and slides and set up push rod 4 in the cavity, the motor passes through drive arrangement drive push rod and slides, the push rod is used for the detergent propelling movement to the liquid outlet that gets into from the inlet, drive arrangement includes by motor drive's reverse wheel 5, be equipped with two elasticity plectrum 51 that stretch out on the reverse wheel, two elasticity plectrum extend along opposite direction, elasticity plectrum and push rod one-to-one, the one end of push rod is passed through elastic component 52 and is set up on the casing of delivery pump, when the motor corotation, one of them elasticity plectrum jack-up corresponding push rod, when the motor reversal, another elasticity plectrum jack-up corresponding another push rod. Detergent enters the cavity from the liquid inlet, the motor drives the reversing wheel to rotate along one direction, because the extending directions of the elastic plectrum are different, one of the elastic plectrum can jack the corresponding push rod, the other elastic plectrum can be rotated by being attached to the push rod, at the moment, the two elastic plectrums can not jack the other push rod, but when the motor rotates reversely, the situation is opposite, the previously immovable push rod can be pushed by the corresponding elastic plectrum, the other push rod is kept immovable, the push rod can return under the action force of the elastic part after being jacked, so that the push rod can slide back and forth in the cavity, thrust is applied to the detergent in the cavity, the detergent is stably pushed to the liquid outlet and extruded by the detergent extrusion part, the motor controls the rotating speed of the reversing wheel, namely the sliding speed of the push rod can be controlled, and the conveying speed of the detergent and the addition amount can be correspondingly controlled, because the direction of motion of push rod is the linear type, the atress direction of detergent extruded article is single and stable, be difficult to fatigue damage, performance and life homoenergetic obtain guaranteeing, this scheme only cooperates with the push rod through a reverse wheel, just can realize when the motor corotation, one of them delivery pump work, another delivery pump stop work, when the motor reversal, the delivery pump stop work of previous work, another delivery pump begins work, realize single motor two accuse, two delivery pumps can conveniently add different detergents, realize the technical effect of two-chamber gear pump among the prior art, the structure is simplified, and the cost is saved.

One of them elasticity plectrum clockwise outwards extends and is the arc, and the anticlockwise outwards extension of another elasticity plectrum is the arc, is equipped with on the lateral wall of push rod with the sunken 41 of elasticity plectrum shape matched with arc, when the reverse wheel rotated, the arc was sunken to be used for the elasticity plectrum to get into and pass through, and two push rod symmetric distribution guarantee reverse wheel steady operation in the both sides of reverse wheel, and the push rod operating mode that the structure of symmetry can guarantee work is unanimous. The corresponding reversing wheel rotates clockwise or anticlockwise, the elastic plectrum is shaped to enable the elastic plectrum to rotate along with a working push rod (namely the push rod capable of sliding back and forth), the working push rod cannot be pushed, the two elastic plectrums can smoothly pass through an inoperative push rod (namely the push rod stopped) through self deformation, interference is not easy to generate, when the elastic plectrum passes through the inoperative push rod, the arc depression is beneficial to the arc-shaped elastic plectrum to enter and pass through, and the possibility of interference between the elastic plectrum and the inoperative push rod is further reduced.

The sliding direction of the push rod is parallel to the length direction of the cavity, the sliding direction of the push rod is consistent with the length direction of the cavity, friction between the push rod and the cavity is reduced, the stress direction of the detergent extrusion piece is single and stable, fatigue damage is not easy to occur, and usability and service life of the detergent extrusion piece can be guaranteed. The conveying pump is provided with a guide part 42, the guide part is provided with a guide groove, the length direction of the guide groove is parallel to the length direction of the cavity, the push rod is arranged in the guide groove in a sliding mode, the guide groove has a guide effect on the sliding of the push rod, the stability of the sliding direction of the push rod is maintained, and therefore the push rod can effectively push detergent in the cavity.

The tip of push rod is equipped with leather cup 43, and the one end of leather cup is fixed on the cavity, and the other end of leather cup is fixed on the push rod, and inlet and liquid outlet all communicate with the leather cup, and the leather cup replaces the bellows in the conventional art as the detergent extruded article, because the effort direction of push rod is single and fixed, can the alternative cost lower, and performance and life can be guaranteed equally to the leather cup that the pliability is better.

All be equipped with check valve 6 on inlet and the liquid outlet, the installation direction of check valve on the inlet is opposite with the installation direction of check valve on the liquid outlet, and the check valve is opened and is realized the feed liquor of inlet or the play liquid of liquid outlet, can prevent simultaneously that the detergent in the cavity from revealing outside or the liquid in the washtub through the inlet and backward flow to the cavity through the liquid outlet, and the detergent of inlet only can not advance, and the detergent of liquid outlet only can not advance. The liquid outlet is communicated with a washing barrel of the washing machine, and the detergent coming out of the liquid outlet directly enters the washing barrel to clean clothes, so that the washing machine is convenient and fast.

In this embodiment, for convenience of understanding, taking the state in fig. 2 as an example, the detergent enters the cavity from the liquid inlet, when the motor drives the reversing wheel to rotate clockwise, the lower elastic pick can jack the lower push rod, and the upper elastic pick rotates past the lower push rod when continuing to rotate to the lower push rod, at this time, neither the upper elastic pick nor the lower elastic pick can jack the upper push rod, but when the motor rotates reversely to reverse the reversing wheel counterclockwise, the upper push rod can be pushed by the upper elastic pick, the lower elastic pick passes through the upper push rod, neither the upper elastic pick nor the lower elastic pick can jack the lower push rod, and the push rod can return to the original position under the action of the elastic member (the elastic member is a spring in fig. 2) after being jacked, so that the push rod can slide back and forth in the cavity to apply thrust to the detergent in the cavity, the detergent is stably pushed to the liquid outlet, the push rod can be jacked up once when the reversing wheel rotates for one circle in fig. 2, and the push rod resets under the action of the elastic piece, and multiple groups of elastic shifting pieces are arranged on the reversing wheel, so that the working condition that the push rod is jacked up for multiple times when the reversing wheel rotates for one circle is achieved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A detergent dispenser comprises a motor and two delivery pumps, wherein the delivery pumps are provided with a liquid inlet and a liquid outlet and are characterized in that each delivery pump comprises a cavity and a push rod arranged in the cavity in a sliding manner, the motor drives the push rods to slide through a driving device, the push rods are used for pushing detergent entering from the liquid inlet to the liquid outlet, the driving device comprises a reversing wheel driven by the motor, the two push rods are symmetrically distributed on two sides of the reversing wheel, two extending elastic poking pieces are arranged on the reversing wheel and extend along opposite directions, the elastic poking pieces correspond to the push rods one by one, one elastic poking piece extends clockwise and outwards to form an arc, the other elastic poking piece extends anticlockwise and outwards to form an arc, one end of each push rod is arranged on a shell of the delivery pump through an elastic piece, when the motor rotates forwards, one elastic poking piece jacks up the corresponding push rod, and the other elastic poking piece is attached to the push rod, when the motor rotates reversely, the other elastic shifting piece jacks up the corresponding other push rod.

2. The detergent dispenser according to claim 1, wherein said push rod has an arcuate recess on a side wall thereof, said arcuate recess being shaped to fit said resilient finger such that said resilient finger enters and passes through said arcuate recess when said reversing wheel is rotated.

3. A detergent dispenser according to claim 1, wherein the sliding direction of the plunger is parallel to the length of the chamber.

4. A detergent dispenser according to claim 3, wherein the pump is provided with a guide portion having a guide groove with a length direction parallel to the length direction of the chamber, and the push rod is slidably disposed in the guide groove.

5. The detergent dispenser according to claim 1, wherein a leather cup is provided at an end of the push rod, one end of the leather cup is fixed to the cavity, the other end of the leather cup is fixed to the push rod, and the liquid inlet and the liquid outlet are both communicated with the leather cup.

6. A detergent dispenser as claimed in claim 5, wherein said inlet and outlet are provided with one-way valves, the one-way valves being mounted on the inlet in a direction opposite to the one-way valves on the outlet.

7. A detergent dispenser as claimed in claim 1, in which the outlet communicates with the washing tub of a washing machine.