CN209678447U - Fluid filling pump, liquid jettison system, washing machine and dish-washing machine - Google Patents

Abstract

The utility model provides a kind of fluid filling pump comprising: the first cavity；Motor；And first transmission system, it is connected between motor and the first cavity, for the rotational motion of motor to be converted to the change of the first cavity volume；Wherein, first transmission mechanism includes the first gear and third gear of coaxial arrangement, first gear is coupled with third gear by the first one-way driving mechanism, so that when motor rotates in the first rotational direction, third gear transfers torque to first gear by the first one-way driving mechanism, and when motor rotates on the second direction of rotation opposite with the first direction of rotation, third gear does not transfer torque to first gear.Due to the setting of the first one-way driving mechanism, the change of the volume of the first cavity is driven to the motor property of can choose, selectively aspirate the first cavity or output liquid.In addition, the utility model also provides a kind of liquid jettison system including the fluid filling pump, a kind of washing machine and a kind of dish-washing machine.

Description

Fluid filling pump, liquid jettison system, washing machine and dish-washing machine

Technical field

The utility model relates to a kind of fluid filling pumps, further relate to a kind of liquid jettison system including the fluid filling pump, a kind of packet Include the washing machine and a kind of dish-washing machine including the liquid jettison system of the liquid jettison system.

Background technique

Liquid dispensing is carried out usually using fluid filling pump for household electrical appliance such as washing machine, dish-washing machines.The dispensing chamber of fluid filling pump It is driven by motor and changes its volume, to aspirate and pump out liquid.In some cases, it is desirable to selectively drive specific Dispensing chamber stereomutation, in particular, in the case where two dispensing chambers of a motor driven.

Utility model content

The one side of the utility model provides a kind of fluid filling pump characterized by comprising the first cavity；Motor；And the One transmission system is connected between motor and the first cavity, for the rotational motion of motor to be converted to the first cavity volume Change, wherein the first transmission mechanism includes the first gear and third gear of coaxial arrangement, and first gear and third gear are logical The connection of the first one-way driving mechanism is crossed, so that third gear is unidirectional by first when motor rotates in the first rotational direction Transmission mechanism transfers torque to first gear, and when motor revolves on the second direction of rotation opposite with the first direction of rotation When turning, third gear does not transfer torque to first gear.

Due to the setting of the first one-way driving mechanism, the change of the volume of the first cavity is driven to the motor property of can choose, Selectively aspirate the first cavity or output liquid.

In some embodiments, the first one-way driving mechanism includes the first cylindric muscle portion, multiple first spine shapes part It is distributed in the inner peripheral surface of the first muscle portion circumferentially-spacedly, the first one-way driving mechanism further includes first raised, multiple second Partially circumferentially compartment of terrain is distributed in the peripheral surface of the first protrusion spine shape, and the first muscle portion is centered around the periphery of the first protrusion, with The first shoe cream room is limited, in first shoe cream room, multiple first spine shapes part respectively cooperates with multiple second spine shapes part. Wherein, spine shape part indicates ratchet or pawl.

First one-way driving mechanism includes the first muscle portion for limiting the first shoe cream room, in the first shoe cream room, multiple first Spine shape part respectively cooperates with multiple second spine shapes part.First shoe cream room is conducive to retaining for lubricant, it may therefore be assured that It is good fit between multiple first spine shapes part and multiple second spine shapes part.

In some embodiments, the first muscle portion is arranged at first gear, and from one end of first gear in the first tooth The rotation axis side of wheel projects upwards, and the first protrusion is arranged at third gear, and from one end of third gear in third tooth The rotation axis side of wheel projects upwards.

In some embodiments, the first muscle portion, multiple first spine shapes part and the integral part of first gear, and first is convex It rises, multiple second spine shapes part and the integral part of third gear.

For example, the first muscle portion, first gear can be with integrated injection moldings, the first protrusion, third gear can be with integrated injection moldings Molding is conducive to the convenience processed and assembled.

In some embodiments, the first spine shape part is ratchet, and the second spine shape part is pawl, and the pawl is cantilevered Structure.

Cantilevered pawl is set to the first protrusion and is conducive to its convenient processing.

In some embodiments, the first one-way driving mechanism further includes first boss, first boss from third gear one End face is prominent on the axis direction of third gear, and the first protrusion is further on the axis direction of third gear from first boss Prominent, the first muscle portion includes the first concave portion of annular in its free end, and the neighboring of first boss receives described the In one concave portion.

In some embodiments, the neighboring of annular the first concave portion and first boss of the free end of the first muscle portion Be combined with conducive to the formation of the first liquid storage chamber so that the first shoe cream room effectively retains lubricant etc..

In some embodiments, the third gear is worm gear, is connected to electricity via the worm screw with merging with worm screw Machine.

In some embodiments, the second cavity；And second transmission system, it is connected between motor and the second cavity, For the rotational motion of motor to be converted to the change of the second cavity volume, wherein the second transmission mechanism includes coaxial arrangement Second gear and the 4th gear, second gear are coupled with the 4th gear by the second one-way driving mechanism, so that when motor is the When rotating on one direction of rotation, the 4th gear does not transfer torque to second gear, and when motor with the first direction of rotation When rotating on the second opposite direction of rotation, the 4th gear transfers torque to second gear by the second one-way driving mechanism. In addition, the second one-way driving mechanism includes the second cylindric muscle portion, partially circumferentially compartment of terrain is distributed in the to multiple third spine shapes In the inner peripheral surface of two muscle portions, second muscle portion is dashed forward on the rotation axis direction of second gear from one end of second gear Out, the second one-way driving mechanism further includes the second protrusion, and partially circumferentially compartment of terrain is distributed in the second protrusion to multiple 4th spine shapes In peripheral surface, second protrusion is projected upwards from one end of the 4th gear in the rotation axis side of the 4th gear, the second muscle Portion be centered around second protrusion periphery, to limit the second shoe cream room, in second shoe cream room, multiple third spine shapes part with Multiple 4th spine shape parts respectively cooperate.

Due to the setting of the first and second one-way driving mechanisms, the first cavity or the second chamber are driven to the motor property of can choose The change of the volume of body, selectively to make the first cavity or the suction of the second cavity or output liquid.

In some embodiments, the 4th gear is worm gear, is cooperated with identical worm screw joined together by third gear And motor is connected to via the worm screw.

The another aspect of the utility model provides a kind of liquid jettison system comprising fluid filling pump as described above.

The another aspect of the utility model provides a kind of washing machine comprising liquid jettison system as described above.

The another aspect of the utility model provides a kind of dish-washing machine comprising liquid jettison system as described above.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Through this specification, the same or similar component has the same or similar appended drawing reference.

Fig. 1 is the perspective view according to the fluid filling pump of the first embodiment of the utility model；

Fig. 2 is the decomposition perspective view according to the fluid filling pump of the first embodiment of the utility model；

Fig. 3 is according to the perspective view of the fluid filling pump of the first embodiment of the utility model, and wherein pump case is removed；

Fig. 4 is according to the top view of the fluid filling pump of the first embodiment of the utility model, and wherein pump case is removed；

Fig. 5 be according to the view of the fluid filling pump of the first embodiment of the utility model seen along the axis of direct current generator, Middle pump case is removed；

Fig. 6 be according to the schematic diagram of the fluid filling pump of the first embodiment of the utility model seen along the axis of direct current generator, It illustrates the arrangements of direct current generator, the first cavity and the second cavity, wherein the first transmission system and the second power train is omitted System；

Fig. 7 is the cutaway top view according to a part of the fluid filling pump of the first embodiment of the utility model；

Fig. 8 is the cross-sectional view of the first worm gear and first gear according to the first embodiment of the utility model；

Fig. 9 a is the perspective view according to the first worm gear of the first embodiment of the utility model；

Fig. 9 b is another perspective view according to the first worm gear of the first embodiment of the utility model；

Figure 10 a is the perspective view according to the first gear of the first embodiment of the utility model；

Figure 10 b is another perspective view according to the first gear of the first embodiment of the utility model；

Figure 11 is the top view according to the fluid filling pump of the first embodiment of the utility model；

Figure 12 a is according to the side view of the fluid filling pump of the first embodiment of the utility model, and it illustrates sensor-based systems, and And pull rod moves to first position；

Figure 12 b is according to the top view of the fluid filling pump of the first embodiment of the utility model, and it illustrates sensor-based systems, and And pull rod moves to the second position；

Figure 13 a is the side view cutaway drawing according to the fluid filling pump of the second embodiment of the utility model；

Figure 13 b is the view according to the sensor-based system of the second embodiment of the utility model seen along the axis of direct current generator Figure；

Figure 14 is according to the top view of the fluid filling pump of the 3rd embodiment of the utility model, and wherein pump case is removed；

Figure 15 is according to the top view of the fluid filling pump of the fourth embodiment of the utility model, and wherein pump case is removed.

Reference signs list

Pump case 110

First half-shell body 111

Second half shell 112

End cap 113

Direct current generator 120,220,320,420

First transmission system 130

Third gear/the first worm gear 131

First gear 132

Second transmission system 130 '

4th gear/the second worm gear 131 '

Second gear 132 '

First spine shape part/the first ratchet part 1321

Second spine shape part/the first detent portions 1311

First boss 1312

First protrusion 1313

First muscle portion 1322

First concave portion 1323

First shoe cream room C

First cavity 140,340,440

First pull rod 141

Second cavity 140 ', 340 ', 440 '

Second pull rod 141 '

First liquid disengaging portion 150

Second liquid disengaging portion 150 '

Worm screw 160

First sub- sensing element 171

Second sub- sensing element 172

The sub- sensing element 173 of third

First sensing element 271

Second sensing element 272

Specific embodiment

In the following, the fluid filling pump of embodiment according to the present utility model is described in detail with reference to the drawings.To keep the utility model real The purposes, technical schemes and advantages for applying example are clearer, and it is practical to this that the following will be combined with the drawings in the embodiments of the present invention, Technical solution in new embodiment is clearly and completely described, it is clear that described embodiment is the utility model one Divide embodiment, instead of all the embodiments.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in conjunction with attached drawing below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

Terms used herein are intended to explain embodiment, and are not intended to be limited to and/or limit the utility model.It needs to manage Solution, the orientation or positional relationship of the instructions such as term "inner", "outside", "upper", "lower" are orientation based on the figure or position Set the relationship utility model product using when the orientation or positional relationship usually put or those skilled in the art The orientation or positional relationship that usually understands of member, is merely for convenience of describing the present invention and simplifying the description, rather than indicate or It implies that signified equipment or element must have a particular orientation, is constructed and operated in a specific orientation, therefore should not be understood as Limitations of the present invention.

Moreover, defining unless the context otherwise, otherwise singular includes plural form.Throughout the specification, term " comprising ", " having ", etc. herein for specifying depositing for the feature, number, step, operation, component, assembly unit or combinations thereof , but do not preclude the presence or addition of other one or more features, number, step, operation, component, assembly unit or combinations thereof.

In addition, even if the term including the ordinal numbers such as " first ", " second " can be used for describing various parts, but these portions Part is not limited by these terms, and these terms are only used to distinguish an element and other elements.For example, not departing from In the case where the scope of the utility model, the first component can be referred to as second component, and similarly, and second component can be by The referred to as first component.

Fig. 1 and Fig. 2 respectively illustrates the perspective view of the fluid filling pump of first embodiment according to the present utility model and decomposes saturating View, which is a liquid feeding double pump, however the utility model is without being limited thereto.As depicted in figs. 1 and 2, the liquid feeding double pump packet Include pump case 110, motor 120, the first transmission system 130, the second transmission system 130 ', the first cavity 140, the second cavity 140 ', first liquid disengaging portion 150, second liquid disengaging portion 150 ' and the worm screw 160 fixed to motor 120 (participate in Fig. 3, figure 4)。

Pump case 110 includes first half-shell body 111, the second half shell 112 and end cap 113, first half-shell body 111, second Half shell 112 and end cap 113 cooperate to be fixed to one another and limit for accommodating motor 120, the first and second transmission systems 130, the accommodating chamber of the 130 ', first and second cavitys 140,140 '.First half-shell body 111, the second half shell 112 and end cap 113 Such as it is fixed together by bonding, spiral connection, buckle, welding etc..

In the present embodiment, the first cavity 140 and the second cavity 140 ' and the first transmission system 130 and the second power train System 130 ' is respectively relative to the axis for axis symmetry arrangement of motor 120, and the axis of motor 120 passes through its output shaft.Therefore, the first chamber The structure of body 140 and the second cavity 140 ' and the first transmission system 130 and the second transmission system 130 ' is essentially identical, but this reality With novel without being limited thereto.

Fig. 3 and Fig. 4 respectively illustrates the perspective view and top view of the fluid filling pump of first embodiment according to the present utility model, Wherein pump case 110 is removed.As shown in Figure 3 and Figure 4, the first transmission system 130 is connected in the output shaft fixed to motor 120 Worm screw 160 and the first cavity 140 between, the first pull rod of the first cavity 140 that the rotational motion of motor 120 is converted to 141 reciprocating motion, the reciprocating motion of the first pull rod 141 lead to the change of the volume of the first cavity 140.First cavity 140 is also It may include the first bellows 142, be fixed to the first pull rod 141, and move back and forth with the first pull rod 141, to realize The suction and output from the first liquid disengaging portion 150 of liquid, the first liquid disengaging portion 150 are arranged at end cap 113, and with First cavity 140 is in fluid communication.In this example, since one end of pull rod 141 moves in a circle, bellows 142 is past It is deformed during multiple movement.

First transmission system 130 includes that first order Worm Wheel System, second level gear drive and third level gear pass It is dynamic.In first order Worm Wheel System, worm screw 160 is fixed to or is integrally formed the output shaft to motor 120, the first worm gear 131 with the driving gear in the gear drive of the second level, i.e. first gear 132 is coaxial to couple, driven in the gear drive of the second level Gear coaxially couples with the driving gear in third level gear drive, and the driven gear in third level gear drive is connected to first Pull rod 141.

As described above, similarly, the second transmission system 130 ' is connected between worm screw 160 and the second cavity 140 ', it will The reciprocating motion of second pull rod 141 ' of the second cavity 140 ' that the rotational motion of motor 120 is converted to.Second transmission system 130 ' include the second worm gear 131 ' coaxially coupled and second gear 132 '.

Transmission system 130,130 ' is not limited to above-mentioned configuration.For example, in another example, the first transmission system 130 and Two transmission systems 130 ' are different.In another example in another example, transmission system 130,130 ' only includes first order worm gear snail Bar transmission, second level gear drive.For another example transmission system 130,130 ' only includes first order worm gear snail in another example Bar transmission.

First cavity 140 is parallel with the direction that the axis of the second cavity 140 ' reciprocally moves respectively.Such as Fig. 3 and Fig. 4 Shown, the axis of motor 120 is parallel with the axis of the axis of the first cavity 140 and the second cavity 140 ', and the first cavity 140, the first transmission system 130, motor 120, the second transmission system 130 ' and the second cavity 140 ' are sequentially in substantially w-shaped arrangement, This is W-shaped to be made of two U-shapeds arranged side by side, and two of them U-shaped has public arm, which includes motor 120.First cavity 140 with the end face opposite with the second pull rod 141 ' of the first pull rod ' opposite end face and the second cavity 140 ' are respectively formed W The end face opposite with output end at the both ends of shape, motor 120 forms W-shaped intermediate ends.

Due to such parallel arrangement and such W-shaped arrangement, fluid filling pump can more effectively utilize space, realize whole The miniaturization of body structure is more advantageous to and is installed on the electrical equipments such as dish-washing machine, washing machine.

Fig. 5 shows the view of the fluid filling pump of first embodiment according to the present utility model seen along the axis of motor 120, Wherein pump case 110 is removed, Fig. 6 show the fluid filling pump of first embodiment according to the present utility model along motor 120 The schematic diagram that axis is seen, wherein the first transmission system 130 and the second transmission system 130 ' is omitted.As shown in Figure 5 and Figure 6, One cavity 140, motor 120 and the second cavity 140 ' are arranged in product word, wherein the first cavity 140 and the second cavity 140 ' are symmetrical It is arranged in the two sides of motor 120.Such product word arrangement increases structural strength, optimizes topology layout, avoids space waste. The axis of the line of the axis of the axis and motor 120 of first cavity 140 and the axis of the first cavity 140 and the second cavity 140 Line between angle be that α can be adjusted as needed, α is bigger, then the width of fluid filling pump is narrower, height it is higher, α is preferably in 0- It is in this example 45 ° in the range of 60 °.In other embodiments, when α is chosen as 0 °, the first cavity 140, motor 120 It is arranged with the second cavity 140 ' in a word.

First transmission system 130 and the second transmission system 130 ' can be respectively selectively by the rotations of 120 output shaft of motor Transhipment is dynamic to transmit and is converted to the reciprocal of the first pull rod 141 of the first cavity 140 and the second pull rod 141 ' of the second cavity 140 ' Movement.As described above, the first transmission system 130 includes the first gear 132 and third gear 131 of coaxial arrangement, the second transmission System 130 ' includes the second gear 132 ' and the 4th gear 131 ' of coaxial arrangement.Here, third gear 131 is worm gear, or For the first worm gear 131, the 4th gear 131 ' is worm gear, or is the second worm gear 131 ', the first worm gear 131 and the second worm gear 131 ' It is engaged respectively with the worm screw 160.Fig. 7 shows the cutaway top view of a part of fluid filling pump according to this embodiment.Such as Fig. 7 Shown, the first worm gear 131 is coupled with first gear 132 by the first one-way driving mechanism, the second worm gear 131 ' and second gear 132 ' are coupled by the second one-way driving mechanism, so that when worm screw 160 rotates on the first direction of rotation A, the first worm gear 131 First gear 132 is transferred torque to by the first one-way driving mechanism, and the second worm gear 131 ' does not transfer torque to second Gear 132 ', and the (not shown) when worm screw 160 rotates on the second direction of rotation opposite with the first direction of rotation A, the One worm gear 131 does not transfer torque to first gear 132, and the second worm gear 131 ' is passed torque by the second one-way driving mechanism It is delivered to second gear 132 '.

Therefore, when worm screw 160 rotates on the first direction of rotation A, the first pull rod 141 is only driven to move back and forth, Without driving the second pull rod 141 ' to move back and forth.On the contrary, when worm screw 160 is in second rotation opposite with the first direction of rotation A When turning to rotate on direction, the second pull rod 141 ' is only driven to move back and forth, without driving the first pull rod 141 back and forth to be transported It is dynamic.In this way, can choose the driving direction of worm screw 160, i.e. the rotation direction of motor, with selectively make the first cavity 140 or Second cavity 140 ' changes volume, thus suction and output liquid.

Fig. 8 shows the cross-sectional view of the first worm gear 131 and first gear 132 according to the present embodiment, and Fig. 9 a and Fig. 9 b divide The perspective view of the first worm gear 131 according to the present embodiment is not shown, and Figure 10 a and Figure 10 b are respectively illustrated according to the present embodiment First gear 132 perspective view.As shown in Fig. 7-10b, the first one-way driving mechanism includes the first cylindric muscle portion 1322 With circumferentially-spaced it is distributed in multiple first spine shapes part 1321 in the inner peripheral surface of the first muscle portion, first muscle portion 1322 It is protruded in the direction of its axis of rotation from one end of first gear 132.Here, the first spine shape part 1321 is ratchet, Huo Chengwei First ratchet part 1321.First one-way driving mechanism further includes the first protrusion 1313 and circumferentially-spaced is distributed in the first protrusion The second spine shape part 1311 in 1313 peripheral surface, first protrusion 1313 is from one end of the first worm gear 131 in its rotation Shaft axis side projects upwards.The second spine shape part 1311 is pawl herein, or is the first detent portions 1311.First pawl Part 1311 be cantilever structure, therefore, have elasticity, can deviate in radial directions, with the first ratchet part 1321 cooperations carry out the single-direction transmission of torque.First muscle portion 1322 is looped around the periphery of the first protrusion 1313, to form the first storage Oil pocket C, in the first shoe cream room C, multiple first ratchets part 1321 and the respectively cooperation of multiple first detent portions 1311.Due to It forms the first shoe cream room C for storing such as lubricant of lubricating oil, cup grease and is therefore effectively guaranteed the first spine Good lubrication between toothed portion 1321 and the first detent portions 1311.

In addition, in order to preferably retain lubricant, the free end of the first muscle portion 1322 and 131 end face of the first worm gear Shape cooperation, to form the mating surface of rugosity.For example, the first one-way driving mechanism further includes as shown in Fig. 8,9b and 10a One boss 1312.First boss 1312 is protruded outward from the end face of the first worm gear 131, and the first protrusion 1313 is from first boss 1312 further protrude outward.First muscle portion 1322 include its free end annular the first concave portion 1323, first The neighboring of boss 1312 receives in first concave portion 1323, to form the mating surface of rugosity.

Preferably, the first worm gear 131 and the first raised 1313 integral parts, and first gear 132 and the first muscle portion 1322 integral parts, are molded for example, it is integrated.In this way, being conducive to the convenience assembled and processed.

Similarly, the second one-way driving mechanism is identical as the structure of the first one-way driving mechanism, and including cooperating The second ratchet part and the second detent portions.

First one-way driving mechanism and the second one-way driving mechanism are not limited to above-mentioned setting, can also have other knots Structure.

In order to sense the liquid volume added of fluid filling pump, fluid filling pump according to the present utility model further includes sensor-based system.Figure 11 is shown The top view of the fluid filling pump of first embodiment according to the present utility model.Figure 12 a and Figure 12 b are shown according to the utility model First embodiment fluid filling pump side view.As shown in Figure 11, Figure 12 a and Figure 12 b, according to the present utility model first implements The sensor-based system of example includes the first sensing device and the second sensing device.First sensing device includes being fixed to pump case 110 First sub- sensing element 171 and the second sub- sensing element 172 fixed to the first pull rod 141.Second sensing device includes fixing The sub- sensing element 173 of third to pump case 110 and the 4th sub- sensing element 174 fixed to the second pull rod 141 '.First son Sensing element 171 and the sub- sensing element 173 of third can be Hall element, the second sub- sensing element 172 and the 4th sub- sensing element Part 174 can be the magnet steel cooperated with Hall element.

Figure 12 a shows the view that the first pull rod 141 moves to first position, wherein the second sub- sensing element 172 is with One pull rod 141 moves to first position.As figure 12 a shows, at first position, the first pull rod 141 is in maximum compression shape State, at this point, second sub- 172 the first sub- sensing element 171 of distance of sensing element for being fixed to the first pull rod 141 is farthest, the first son The magnetic field that sensing element 171 senses is minimum.Figure 12 b shows the view that the first pull rod 141 moves to the second position, wherein Second sub- sensing element 172 moves to the second position with the first pull rod 141.As shown in Figure 12b, at the second position, first Pull rod 141 is in maximum tension state, at this point, being fixed to 172 distance the first son sensing of the second sensing element of the first pull rod 141 Recently, the magnetic field that the first sub- sensing element 171 senses is maximum for element 171.Therefore, the first sensing device can be sensed accurately The reciprocation period and/or speed of first pull rod 141.Similarly, the second sensing device can accurately sense the second pull rod 141 ' reciprocation period and/or speed.Therefore, the first sensing device of sensor-based system and the second sensing device can be distinguished Relevant information is fed back to control device to the output for controlling motor 120, to accurately control the injected volume of fluid filling pump.In addition, Since the second sub- sensing element 172 is set to the first pull rod 141 and the 4th sub- sensing element 174 is set to the second pull rod 141 ', therefore, compared to the drive position being arranged in front of output shaft or power train, sensor-based system can be sensed more accurately The reciprocating motion of first pull rod 141 and the second pull rod 141 ', and then the size of the current liquid volume added of two cavitys is sensed, thus Precisely control the injected volume of fluid filling pump.

Preferably, the motor 120 that fluid filling pump according to the present utility model uses is direct current generator, accordingly, with respect to synchronization Motor, direct current generator 120 can provide bigger torque and output bigger flow in the case where occupying same volume. Meanwhile transmission system allows to can be realized the output of accurate liquid using the fluid filling pump of direct current generator 120.

Figure 13 a and Figure 13 b show the sensor-based system of the fluid filling pump of second embodiment according to the present utility model, the liquid feeding Pump is also liquid feeding double pump.Different from the first embodiment the sensor-based system of fluid filling pump according to the second embodiment includes first Sensing element 271 and the second sensing element 272, the second sensing element 272 are arranged on the output shaft of motor 220, the first sensing The electric machine casing end near the second sensing element 272 is then arranged in element 271, fixes relative to pump case.The sensing system System can sense the revolving speed of the output shaft of motor 220.Since the transmission ratio of the first transmission system and the second transmission system is one Fixed, accordingly it is also possible to obtain the first cavity indirectly using the period and/or speed of the output shaft for sensing motor 220 140 and second cavity 140 ' reciprocating motion period and/or speed, to control the output of motor 220.In order to more effectively Using space, the second sensing element 272 be can be set on the side opposite with the output end of motor 220.First sensing element 271 can be Hall element, and the second sensing element 272 can be magnet ring, can have the pole N and the pole S.With The rotation of two sensing elements 272, when its N extremely close to the first sensing element 271 when, high electric signal or low electric signal are generated, as its S When extremely close to the first sensing element 271, opposite signal is generated.

Sensor-based system is not limited to Hall element and magnet steel, Hall element and magnet ring, can also include for sensing opposite position It sets or the other component of revolving speed, such as dry-reed tube component.

All parts in fluid filling pump according to the present utility model can have a variety of different arrangements.Liquid feeding is described below Other arrangements of pump, but the utility model is without being limited thereto, it can be according to customer demand and the fluid filling pump electricity to be installed to The demand of device equipment etc. is adjusted the arrangement of all parts in fluid filling pump.

Figure 14 shows the top view of the fluid filling pump of 3rd embodiment according to the present utility model, which is that liquid feeding is double Pump.As shown in figure 14, different from the first embodiment, in liquid feeding double pump according to the third embodiment, 340 He of the first cavity The axis of second cavity 340 ' is parallel to each other, and the axis of the two is each perpendicular to the axis of motor 320.

Figure 15 shows the top view of the fluid filling pump of fourth embodiment according to the present utility model, which is that liquid feeding is double Pump.As shown in figure 15, different from the first embodiment, in the liquid feeding double pump according to fourth embodiment, motor 420, first The axis of cavity 440 and the second cavity 440 ' is parallel to each other, and the end face opposite with output end of motor 420 is far from the first cavity 440 and second cavity 440 ' opposite with its pull rod end face arrangement.

In addition, the first cavity 140,340,440 and the first transmission system 130 and the second cavity 140 ', 340 ', 440 ' with And second transmission system 130 ' be not limited to be arranged symmetrically relative to motor 120,220,320,420.

Above-mentioned fluid filling pump can be used in the household electrical appliance such as washing machine or dish-washing machine.E.g., including adding in washing machine Liquid pump can be used for launching liquid detergent automatically into washing machine.In another example the fluid filling pump being included in dish-washing machine can be used for washing the dishes Automatically cleaning solution is launched in machine.

The scope of the utility model is not limited by above described embodiment, but by appended claims And its equivalent limits.

Claims (12)

1. a kind of fluid filling pump characterized by comprising

First cavity；

Motor；And

First transmission system is connected between motor and the first cavity, for the rotational motion of motor to be converted to the first chamber The change of body volume, wherein

First transmission mechanism includes the first gear and third gear of coaxial arrangement,

First gear is coupled with third gear by the first one-way driving mechanism, so that when motor rotates in the first rotational direction When, third gear transfers torque to first gear by the first one-way driving mechanism, and when motor with the first rotation side When rotating on the second opposite direction of rotation, third gear does not transfer torque to first gear.

2. fluid filling pump according to claim 1, which is characterized in that

First one-way driving mechanism includes the first cylindric muscle portion, and multiple first spine shapes are partially circumferentially distributed in first in compartment of terrain In the inner peripheral surface of muscle portion,

First one-way driving mechanism further includes columned first protrusion, and partially circumferentially compartment of terrain is distributed in the to multiple second spine shapes In the peripheral surface of one protrusion,

First muscle portion is centered around the periphery of the first protrusion, to limit the first shoe cream room, in first shoe cream room, and multiple first Spine shape part respectively cooperates with multiple second spine shapes part.

3. fluid filling pump according to claim 2, which is characterized in that

First muscle portion is arranged at first gear, and dashes forward on the rotation axis direction of first gear from one end of first gear Out,

First protrusion is arranged at third gear, and dashes forward on the rotation axis direction of third gear from one end of third gear Out.

4. fluid filling pump according to claim 3, which is characterized in that

First muscle portion, multiple first spine shapes part and the integral part of first gear, and the first protrusion, multiple second spine shapes part With the integral part of third gear.

5. fluid filling pump according to claim 3, which is characterized in that

First spine shape part is ratchet, and the second spine shape part is pawl, and the pawl is cantilever structure.

6. fluid filling pump according to claim 3, which is characterized in that

First one-way driving mechanism further includes first boss, first boss from an end face of third gear third gear axis Side projects upwards, and the first protrusion further protrudes on the axis direction of third gear from first boss,

First muscle portion includes the first concave portion of annular in its free end,

The neighboring of first boss receives in first concave portion.

7. fluid filling pump according to claim 3, which is characterized in that

The third gear is worm gear, is connected to motor via the worm screw with merging with worm screw.

8. fluid filling pump according to claim 3, which is characterized in that the fluid filling pump further includes

Second cavity；And

Second transmission system is connected between motor and the second cavity, for the rotational motion of motor to be converted to the second chamber The change of body volume, wherein

Second transmission mechanism includes the second gear and the 4th gear of coaxial arrangement,

Second gear is coupled with the 4th gear by the second one-way driving mechanism, so that when motor rotates in the first rotational direction When, the 4th gear does not transfer torque to second gear, and when motor is in the second rotation side opposite with the first direction of rotation Upwards when rotation, the 4th gear transfers torque to second gear by the second one-way driving mechanism,

Second one-way driving mechanism includes the second cylindric muscle portion, and multiple third spine shapes are partially circumferentially distributed in second in compartment of terrain In the inner peripheral surface of muscle portion, second muscle portion is projected upwards from one end of second gear in the rotation axis side of second gear,

Second one-way driving mechanism further includes the second protrusion, and partially circumferentially compartment of terrain is distributed in the second protrusion to multiple 4th spine shapes In peripheral surface, second protrusion is projected upwards from one end of the 4th gear in the rotation axis side of the 4th gear,

Second muscle portion is centered around the periphery of the second protrusion, to limit the second shoe cream room, in second shoe cream room, and multiple thirds Spine shape part respectively cooperates with multiple 4th spine shape parts.

9. fluid filling pump according to claim 8, which is characterized in that

The third gear is worm gear, is connected to motor via the worm screw with merging with worm screw,

4th gear is worm gear, is connected to via the worm screw with identical worm screw joined together by third gear with merging Motor.

10. a kind of liquid jettison system characterized by comprising

Fluid filling pump according to claim 1 to 9.

11. a kind of washing machine characterized by comprising

Liquid jettison system according to claim 10.

12. a kind of dish-washing machine characterized by comprising

Liquid jettison system according to claim 10.