CN115478413A

CN115478413A - Put in device and have its put in subassembly, washing equipment

Info

Publication number: CN115478413A
Application number: CN202110604736.XA
Authority: CN
Inventors: 付仕波; 喻光安; 薛欣洋
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-12-16

Abstract

The invention discloses a throwing device, a throwing component with the same and washing equipment, wherein the throwing device is used for throwing a washing agent and comprises: the feeding pump comprises a pump shell and a pump body, the pump body is movably arranged in the pump shell, and a liquid inlet and a liquid outlet are formed in the pump shell; the driving assembly comprises a driving mechanism and a transmission mechanism, the transmission mechanism is connected between the driving mechanism and the pump body, and the driving mechanism can move between a first position and a second position; when the driving mechanism moves from the first position to the second position, the driving mechanism drives the transmission mechanism to move so as to drive the pump body to move, and the lotion is sucked from the liquid inlet and discharged from the liquid outlet; and in the process that the driving mechanism moves from the second position to the first position, the transmission mechanism does not drive the pump body to move. According to the dispensing device provided by the invention, the dispensing pump can be prevented from reversely sucking the lotion through the liquid outlet, and the accuracy of dispensing the lotion is ensured.

Description

Put in device and have its put in subassembly, washing equipment

Technical Field

The invention relates to the field of lotion feeding, in particular to a feeding device, a feeding assembly with the same and washing equipment with the same.

Background

Along with the change of consumption habits and the upgrade of consumption, the utilization rate of liquid detergents such as laundry detergent, softener and the like is higher and higher, compared with the trouble that the laundry detergent is manually put into a washing machine when the laundry detergent is manually put into the washing machine every time and the use amount is not well controlled, the washing machine with the automatic putting function is more and more favored, but the automatic putting function is high in cost and generally has configuration only on a high-end machine, so that a manual-driven semi-automatic putting device is provided, the trouble that a user carries a container to pour the laundry detergent every time is eliminated, the aim that the user can achieve accurate putting amount by controlling the number of times of the driving device can be achieved by setting the manually-driven putting amount every time, the user is more comfortable to wash, and the putting amount can be self-determined according to the cleanliness degree and the material quality of the laundry. However, in the manual dispensing device in the related art, after the manual pressing operation is performed, the problem that the dispensing device sucks the lotion reversely is likely to occur, and it is difficult to ensure the accuracy of dispensing the lotion.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the dispensing device which is beneficial to preventing the dispensing pump from reversely sucking the lotion through the liquid outlet and ensuring the dispensing accuracy of the lotion.

The invention further provides a releasing assembly with the releasing device.

The invention also provides washing equipment with the throwing assembly.

The dispensing device is used for dispensing the lotion and comprises: the feeding pump comprises a pump shell and a pump body, wherein the pump body is movably arranged in the pump shell, and a liquid inlet and a liquid outlet are formed in the pump shell; a drive assembly including a drive mechanism and a transmission mechanism connected between the drive mechanism and the pump body, the drive mechanism being movable between a first position and a second position; when the driving mechanism moves from the first position to the second position, the driving mechanism drives the transmission mechanism to move so as to drive the pump body to move, so that the lotion is sucked from the liquid inlet and discharged from the liquid outlet; in the process that the driving mechanism moves from the second position to the first position, the transmission mechanism does not drive the pump body to move; the drive mechanism moves from the first position to the second position along a first path, and the drive mechanism moves from the second position to the first position along a second path different from the first path.

According to the dispensing device provided by the embodiment of the invention, the driving assembly comprises the driving mechanism and the transmission mechanism, and in the process that the driving mechanism moves from the first position to the second position, the driving mechanism drives the transmission mechanism to move so as to drive the pump body to move, so that the lotion is sucked from the liquid inlet and discharged from the liquid outlet; at actuating mechanism from the second position in-process of moving to the primary importance, drive mechanism does not drive the motion of the pump body to be favorable to avoiding moving the in-process to the primary importance at actuating mechanism from the second place, put in the pump and pass through the reverse suction lotion of liquid outlet, the accuracy that the lotion was put in is high, the accessible simultaneously rationally sets up drive mechanism's drive ratio, with the motion stroke of the control pump body, be favorable to increasing the single volume of putting in the device, reduce and put in the number of times.

In some embodiments of the invention, the drive assembly further comprises a resilient return mechanism for driving the return of the drive mechanism to the first position.

In some embodiments of the invention, the transmission mechanism comprises a first transmission member and a second transmission member which are in transmission connection, the first transmission member is connected to the driving mechanism, the second transmission member is connected to the pump body, the first transmission member and the second transmission member are in transmission connection during the process of moving the driving mechanism from the first position to the second position, and the first transmission member and the second transmission member are separated during the process of moving the driving mechanism from the second position to the first position.

In some embodiments of the invention, the first path and the second path join and form a loop at the first location and the second location, respectively.

In some embodiments of the invention, the first path extends along a straight line and the second path extends along a non-straight line.

In some embodiments of the invention, the delivery device comprises: the guide piece is arranged on the driving mechanism, a guide groove is formed in the pump shell, the driving mechanism drives the guide piece to move along the extending direction of the guide groove when moving, the guide groove comprises a first guide section and a second guide section, the first guide section forms the first path, and the second guide section forms the second path.

In some embodiments of the present invention, in a depth direction of the guide groove, a portion of the bottom wall surface of the second guide section adjacent to the first position is higher than a portion of the bottom wall surface of the first guide section adjacent to the first position, the first guide section and the second guide section are formed with a first step surface adjacent to the first position, a portion of the bottom wall surface of the first guide section adjacent to the second position is higher than a portion of the bottom wall surface of the second guide section adjacent to the second position, the first guide section and the second guide section are formed with a second step surface adjacent to the second position, and the guide member is provided on the drive mechanism movably in the depth direction of the guide groove.

In some embodiments of the present invention, the driving mechanism is formed with a mounting hole, and the guide member is movably disposed through the mounting hole.

In some embodiments of the present invention, the guide member is held in surface contact with a bottom wall of the guide groove.

In some embodiments of the present invention, an elastic holder is provided on the driving mechanism, the elastic holder having an elastic force to the guide member so that the guide member is held in surface contact with the bottom wall of the guide groove.

In some embodiments of the present invention, a profile is provided on a side of the pump housing opposite to the bottom wall of the guide groove, a wall surface of the profile facing the guide groove is formed into a contoured surface that conforms to the bottom wall surface of the guide groove, and the guide is held in contact with both the bottom wall surface of the guide groove and the contoured surface.

In some embodiments of the present invention, at least a portion of the bottom wall surface of the second guide section adjacent to the first position constitutes a first transition surface connected to the first step surface, the first transition surface gradually increasing in a direction from the second position to the first position; at least a portion of the bottom wall surface of the first guide section adjacent to the second position forms a second transition surface, the second transition surface is connected to the second step surface, and the second transition surface is gradually increased in height in a direction from the first position to the second position.

In some embodiments of the present invention, a limiting protrusion is further formed on a bottom wall surface of the second guiding section, the limiting protrusion is located between the first guiding section and the second guiding section, two ends of the limiting protrusion are spaced apart from a side wall of the guiding groove, and a first communicating gap and a second communicating gap which communicate the first guiding section and the second guiding section are respectively defined.

In some embodiments of the present invention, the first guiding section extends along a straight line, and in a direction from the second position to the first position, the second guiding section includes a first sub-guiding section, a second sub-guiding section, and a third sub-guiding section, which are sequentially arranged, the second sub-guiding section is parallel to the first guiding section, and an included angle is formed between the second sub-guiding section and each of the first sub-guiding section and the third sub-guiding section, and the included angle is an obtuse angle.

In some embodiments of the present invention, the driving mechanism includes a first driving member and a second driving member, the guiding member is disposed on the second driving member, the transmission mechanism is connected between the second driving member and the pump body, the first driving member is movable between the first position and the second position, and the first driving member drives the second driving member to move during the process that the first driving member moves from the first position to the second position.

In some embodiments of the invention, the second drive member is rotatably connected to the first drive member.

In some embodiments of the present invention, the first driving member is formed with a guide hole extending in an arc shape, the second driving member is formed with a guide post engaged with the guide hole, and the guide post moves along an extending direction of the guide hole when the second driving member rotates relative to the first driving member.

In some embodiments of the invention, the drive assembly further comprises a resilient return mechanism comprising a first resilient return member for driving the first drive member to return to the first position.

In some embodiments of the present invention, a sliding groove extending along the moving direction of the first driving member is further formed on the pump housing, a sliding member is provided on the second driving member, the sliding member is rotatably provided on the sliding groove and is movable along the extending direction of the sliding groove, and the first driving member abuts against the second driving member in the moving direction of the first driving member.

In some embodiments of the present invention, the driving assembly further comprises an elastic resetting mechanism, and the elastic resetting mechanism comprises a second elastic resetting piece, and the second elastic resetting piece is used for driving the second driving piece to reset.

In some embodiments of the invention, the transmission mechanism comprises a first transmission member and a second transmission member which are in transmission connection, the first transmission member is connected to the second driving member, the second transmission member is connected to the pump body, the first transmission member is in transmission connection with the second transmission member during the process that the first driving member moves from the first position to the second position, and the first transmission member is separated from the second transmission member during the process that the first driving member moves from the second position to the first position.

In some embodiments of the invention, the first transmission member is a rack extending in a direction from the first position to the second position, and the second transmission member is a pinion.

The delivery assembly according to the embodiment of the invention comprises: the throwing device is the throwing device; and the storage box is used for storing the lotion, a storage cavity is defined in the storage box, and the storage cavity is communicated with the liquid inlet.

According to the dispensing assembly provided by the embodiment of the invention, by arranging the dispensing device, the dispensing pump can be prevented from reversely sucking the lotion through the liquid outlet in the process that the driving mechanism moves from the second position to the first position, the dispensing accuracy of the lotion is high, meanwhile, the movement stroke of the pump body can be controlled by reasonably setting the transmission ratio of the transmission mechanism, the single dispensing amount of the dispensing device can be increased, and the dispensing times can be reduced.

In some embodiments of the invention, the reservoir cartridge is provided on the pump housing; or the storage box is connected with the pump shell through a connecting pipe.

In some embodiments of the invention, the storage case is provided on the pump housing, the storage case is detachably connected to the pump housing or the storage case is integrally formed with the pump housing.

A washing apparatus according to an embodiment of the present invention includes: the throwing component is described above.

According to the washing equipment provided by the embodiment of the invention, by arranging the feeding assembly, the situation that the feeding pump reversely sucks the lotion through the liquid outlet in the process that the driving mechanism moves from the second position to the first position is avoided, the accuracy of feeding the lotion is high, meanwhile, the movement stroke of the pump body can be controlled by reasonably setting the transmission ratio of the transmission mechanism, the single feeding amount of the feeding device is increased, the feeding times are reduced, and the overall performance of the washing equipment is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a perspective view of a dispensing assembly provided by an embodiment of the present invention;

FIG. 2 is a perspective view of a portion of the dispensing assembly shown in FIG. 1;

figure 3 is a schematic cross-sectional view of the delivery assembly shown in figure 1;

FIG. 4 is a cross-sectional schematic view of the drive shell shown in FIG. 1;

FIG. 5 isbase:Sub>A cross-sectional view taken at A-A in FIG. 4;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 7 is a perspective view of the drive housing shown in FIG. 1;

FIG. 8 is a schematic cross-sectional view of the dosing pump of FIG. 1 in another position;

FIG. 9 is a cross-sectional schematic view of the first driver, second driver, guide and drive shell illustrated in FIG. 3;

FIG. 10 is a cross-sectional schematic view of a further first driver, a second driver, a guide and a drive housing provided in accordance with an embodiment of the invention;

FIG. 11 is a schematic cross-sectional view of the washing apparatus of FIG. 1;

figure 12 is a schematic cross-sectional view of a further delivery assembly according to an embodiment of the present invention

Figure 13 is a schematic cross-sectional view of a further delivery assembly provided in accordance with an embodiment of the present invention;

figure 14 is a schematic cross-sectional view of a delivery assembly according to yet another embodiment of the present invention.

Reference numerals:

a washing apparatus 1000;

a delivery assembly 100;

the dispensing device 10:

a throwing pump 1; a pump housing 11; a liquid inlet 111; a wicking zone 1111; a liquid outlet 112; a drain region 1112;

a guide groove 113; a first guide section 1131; a second guide segment 1132; a first sub-guide section 1133; a second sub-guide section 1134; a third sub-guide section 1135; a first step surface 1136; a second step surface 1137; a first transition surface 1138; a second transition surface 1139; a limit projection 114; a first communication notch 115; a second communication gap 116;

a housing portion 1181; an end cap 1182; a pump housing 1183; a drive housing 1184; a diversion cavity 1185; an exhaust port 1186; a drive cavity 1187; a contour 1191; contoured surfaces 1192; a chute 1193;

a pump body 12; the sub-pump body 121; a mounting cavity 13; a suction chamber 131; a vane pump 14; a wheel disc 141; a blade 142; a spring member 143; a mounting seat 15;

a drive assembly 2; a drive mechanism 21; a first driving member 211; the guide hole 2111; a second drive member 212; a rotating shaft 2121; a guide post 2122; mounting holes 2123; a first bore section 2124; a second bore section 2125; a slider 2126;

a transmission mechanism 22; a first transmission member 221; a second transmission member 222;

an elastic return mechanism 223; a first elastic return mechanism 2231; a second elastic return mechanism 2232;

a guide 3; an abutting portion 31; a stopper portion 32; a guide part 33; a resilient retainer 34;

a storage box 20; a storage chamber 201;

an inlet valve 200; a mixing bin 300; the washing tank 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

The dispensing device 10, the dispensing assembly 100 and the washing apparatus 1000 according to the embodiment of the present invention will be described with reference to the accompanying drawings. For example, the dispensing device 10 may be used in washing devices having a water inlet system, such as a washing machine, a dishwasher, a wash-stand, or a sink.

Referring to fig. 1 and 2, a dispensing device 10 according to an embodiment of the present invention for dispensing a lotion may include: dosing pump 1 and drive assembly 2. Wherein the detergent can be liquid detergent such as laundry detergent, softener and the like.

Referring to fig. 1 and 2, the dispensing pump 1 includes a pump housing 11 and a pump body 12, the pump body 12 is movably disposed in the pump housing 11, an inlet 111 and an outlet 112 (see fig. 8) are formed on the pump housing 11, the driving assembly 2 includes a driving mechanism 21 and a transmission mechanism 22, the transmission mechanism 22 is connected between the driving mechanism 21 and the pump body 12, the driving mechanism 21 is movable between a first position (see a position in fig. 3 and 4) and a second position (see b position in fig. 4), for example, the driving mechanism 21 may be movably connected with the pump housing 11, see fig. 3, and the driving mechanism 21 is movable between the first position and the second position. During the process that the driving mechanism 21 moves from the first position to the second position, the driving mechanism 21 drives the transmission mechanism 22 to move so as to drive the pump body 12 to move, so that the lotion is sucked from the liquid inlet 111 and discharged from the liquid outlet 112; during the movement of the driving mechanism 21 from the second position to the first position, the transmission mechanism 22 does not move the pump body 12, and during this process, no lotion is dispensed at the liquid outlet 112.

Specifically, a user can manually drive the driving mechanism 21 to move from the first position to the second position, the driving mechanism 21 drives the transmission mechanism 22 to move so as to drive the pump body 12 to move, so that the lotion is sucked from the liquid inlet 111 and discharged from the liquid outlet 112 (refer to fig. 8 and 11), and semi-automatic dispensing of the dispensing device 10 is realized, that is, the lotion is dispensed manually, the transmission mechanism 22 does not drive the pump body 12 to move in the process that the user manually drives the driving mechanism 21 to move from the second position to the first position, and no lotion is dispensed at the liquid outlet 112 in the process, so that the situation that the dispensing pump 1 reversely sucks the lotion through the liquid outlet 112 in the process that the driving mechanism 21 moves from the second position to the first position is avoided, accuracy of dispensing the lotion is high, and meanwhile, the movement stroke of the pump body 12 can be controlled by reasonably setting the transmission ratio of the transmission mechanism 22, which is beneficial to increase the single dispensing amount of the dispensing device 10 and reduce the dispensing times.

In view of this, according to the dispensing device 10 of the embodiment of the present invention, by making the driving assembly 2 include the driving mechanism 21 and the transmission mechanism 22, during the process of the driving mechanism 21 moving from the first position to the second position, the driving mechanism 21 drives the transmission mechanism 22 to move, so as to drive the pump body 12 to move, so as to suck the lotion from the liquid inlet 111 and discharge the lotion from the liquid outlet 112; in the process that the driving mechanism 21 moves from the second position to the first position, the transmission mechanism 22 does not drive the pump body 12 to move, so that the dispensing pump 1 is prevented from reversely sucking the lotion through the liquid outlet 112, the dispensing accuracy of the lotion is high, and meanwhile, the movement stroke of the pump body 12 can be controlled by reasonably setting the transmission ratio of the transmission mechanism 22, so that the single dispensing amount of the dispensing device 10 is increased, and the dispensing times are reduced.

In some embodiments of the present invention, as shown with reference to fig. 3, the driving assembly 2 further comprises an elastic return mechanism 223, the elastic return mechanism 223 being used for returning the driving mechanism 21 to the first position. It is understood that, after the user drives the driving mechanism 21 to move from the first position to the second position, the elastic resetting mechanism 223 applies an elastic deformation force to the driving mechanism 21 toward the first position (refer to the upward elastic deformation force in fig. 3), and after the hand is released, the driving mechanism 21 is reset to the first position under the driving of the elastic resetting mechanism 223. For example, as shown in fig. 3, the elastic return mechanism 223 may be a spring, and the elastic return mechanism 223 is used for driving the driving mechanism 21 to move to return to the first position.

In some embodiments of the present invention, referring to fig. 2 and 3, the transmission mechanism 22 includes a first transmission member 221 and a second transmission member 222 which are connected in a transmission manner, the first transmission member 221 is connected to the driving mechanism 21, the second transmission member 222 is connected to the pump body 12, the first transmission member 221 is connected with the second transmission member 222 in a transmission manner during the process of moving the driving mechanism 21 from the first position to the second position, and the first transmission member 221 is separated from the second transmission member 222 during the process of moving the driving mechanism 21 from the second position to the first position. The separation of the first transmission member 221 and the second transmission member 222 can be understood as the disengagement of the first transmission member 221 and the second transmission member 222, in other words, the first transmission member 221 is not in contact with the second transmission member 222.

It can be understood that, during the process of moving the driving mechanism 21 from the second position to the first position, by separating the first transmission member 221 from the second transmission member 222, the first transmission member 221 cannot drive the second transmission member 222 to rotate, which is beneficial to ensure that the pump body 12 does not move during the process, and is beneficial to avoid the dispensing pump 1 from reversely sucking the lotion through the liquid outlet 112.

In some embodiments of the present invention, as shown with reference to fig. 4, the drive mechanism 21 moves from the first position to the second position along a first path (see path a → b in fig. 4), and the drive mechanism 21 moves from the second position to the first position along a second path different from the first path (see path b → c → d → a in fig. 4).

It can be understood that, in the process that the driving mechanism 21 moves from the first position to the second position, the driving mechanism 21 moves along the first path, at this time, the driving mechanism 21 drives the transmission mechanism 22 to move so as to drive the pump body 12 to move, in the process that the driving mechanism 21 moves from the second position to the first position, the driving mechanism 21 moves along the second path different from the first path, so that the movement paths of the driving mechanism 21 when dispensing the lotion and when resetting are different, that is, the driving assembly 2 does not reciprocate according to the same path, the driving assembly 2 unidirectionally drives the pump body 12 to move, which is beneficial to ensuring that the pump body 12 does not move in the process that the driving mechanism 21 moves from the second position to the first position, thereby achieving the purpose of unidirectional driving, and further preventing the dispensing pump 1 from reversely sucking the lotion through the liquid outlet 112.

For example, referring to fig. 3 and 4, in the process of moving the driving mechanism 21 from the first position to the second position, the driving mechanism 21 moves along a first path (refer to a → b path in fig. 4), at which time the driving mechanism 21 drives the transmission mechanism 22 to move so as to drive the pump body 12 to move, and in the process of moving the driving mechanism 21 from the second position to the first position, the driving mechanism 21 moves along a second path (refer to a path b → c → d → a in fig. 4) different from the first path, so that the first transmission member 221 and the second transmission member 222 are separated, and the driving assembly 2 cannot drive the pump body 12 to move.

In some alternative embodiments of the present invention, and as illustrated with reference to fig. 4, the first and second paths join and form a loop at the first and second locations, respectively. For example, as shown in fig. 4, the upper end of the first path is joined to the upper end of the second path at a, and the lower end of the first path is joined to the lower end of the second path at b, so that the first path and the second path form a loop. It can be understood that, by making the first path and the second path respectively connect in the first position and the second position, the movement path of the driving mechanism 21 can be formed into a ring shape, and after the driving mechanism 21 moves from the first position to the second position along the first path, the driving mechanism 21 can also return to the first position through the second path, so as to reciprocate, which is beneficial to ensure the reliability of multiple releases of the releasing device 10.

In some alternative embodiments of the present invention, and as shown with reference to FIG. 4, the first path extends along a straight line and the second path extends along a non-straight line. The first path and the second path are ensured to form a ring shape, and the first path and the second path are ensured to be connected only at the joint. It can be understood that, referring to fig. 3 and 4, by making the first path be a straight line, it is beneficial to ensure that the first transmission element 221 and the second transmission element 222 are in a matching state in the process of moving the driving mechanism 21 from the first position to the second position, so as to ensure that the transmission mechanism 22 reliably drives the pump body 12 to move, thereby implementing the dispensing of the lotion, and by extending along a non-straight line through the second path, in the process of moving the driving mechanism 21 from the second position to the first position, it is beneficial to ensure that the first transmission element 221 and the second transmission element 222 are separated, thereby ensuring that the transmission mechanism 22 does not drive the pump body 12 to move, thereby achieving the purpose of one-way driving, and further facilitating to prevent the dispensing pump 1 from reversely sucking the lotion through the liquid outlet 112.

In some alternative embodiments of the present invention, shown with reference to fig. 3 and 4, the delivery device 10 comprises: the guide member 3, the guide member 3 is disposed on the driving mechanism 21, the pump housing 11 is formed with a guide groove 113, the driving mechanism 21 drives the guide member 3 to move along the extending direction of the guide groove 113 when moving, the guide groove 113 includes a first guide section 1131 and a second guide section 1132, the first guide section 1131 forms a first path, and the second guide section 1132 forms a second path.

It can be understood that, in the process that the driving mechanism 21 moves from the first position to the second position, the guide member 3 is engaged with the guide groove 113 and moves along the extending direction of the first guide section 1131, which can ensure that the driving mechanism 21 moves along the first path, and is beneficial to ensuring that the driving mechanism 21 drives the transmission mechanism 22 to move so as to drive the pump body 12 to move, thereby realizing the dispensing of the lotion; in the process that actuating mechanism 21 moved from the second position to the first position, guide 3 and guide way 113 cooperate and move along the extending direction of second guide section 1132, thereby can guarantee that actuating mechanism 21 moves along the second route, can guarantee that actuating mechanism 21 is putting in lotion and the motion route separation when reseing, do not do the reciprocating motion according to same route, drive assembly 2 one-way drive pump body 12 moves, be favorable to further preventing to put in pump 1 and pass through the reverse suction lotion of liquid outlet 112, and simultaneously, the steam generator is simple in structure, and easy to realize.

For example, referring to fig. 3, for example, referring to fig. 7, the driving device 10 includes a driving housing 1184, the driving housing 1184 defines a driving cavity 1187, the driving mechanism 21 and the guide member 4 are both located in the driving cavity 1187, a guide groove 113 is formed on one side wall of the driving cavity 1187, the guide member 3 extends in the left-right direction, the guide member 3 is configured as a movable pin, one axial end of the guide member 3 is connected to the lower end of the driving mechanism 21, the other axial end of the guide member 3 is fitted in the guide groove 113, during the driving mechanism 21 moves from the first position to the second position, the guide member 3 is fitted in the guide groove 113 and moves along the extending direction (refer to path a → b in fig. 4) of the first guide section 1131, and the driving mechanism 21 drives the transmission mechanism 22 to move to drive the pump body 12, so as to implement the dispensing of the lotion; during the movement of the driving mechanism 21 from the second position to the first position, the guide member 3 engages with the guide groove 113 and moves along the extending direction of the second guide segment 1132 (refer to the path of b → c → d → a in fig. 4), so that the first transmission member 221 and the second transmission member 222 are separated, and the driving assembly 2 cannot drive the pump body 12.

In some alternative embodiments of the present invention, as shown in fig. 4 and 7, in the depth direction of the guide groove 113, a portion of the bottom wall surface of the second guide segment 1132 adjacent to the first position is higher than a portion of the bottom wall surface of the first guide segment 1131 adjacent to the first position (refer to fig. 7), the first guide segment 1131 and the second guide segment 1132 are formed with a first step surface 1136 adjacent to the first position, a portion of the bottom wall surface of the first guide segment 1131 adjacent to the second position is higher than a portion of the bottom wall surface of the second guide segment 1132 adjacent to the second position, the first guide segment 1131 and the second guide segment 1132 are formed with a second step surface 1137 adjacent to the second position, and the guide piece 3 is provided movably on the drive mechanism 21 in the depth direction of the guide groove 113 (refer to the left-right direction in fig. 5 and 6).

Specifically, when the drive mechanism 21 moves from the first position (refer to the position a in fig. 4) toward the second position (refer to the position a in fig. 4), at the first position, since the portion of the bottom wall surface of the second guide segment 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide segment 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 restricts the movement of the guide member 3 toward the second guide segment 1132 (refer to fig. 7), the guide member 3 can move only in the extending direction of the first guide segment 1131 (refer to the path a → b in fig. 4), when the guide member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guide segment 1131 adjacent to the second position is higher than the portion of the bottom wall surface of the second guide segment 1132 adjacent to the second position in the depth direction of the guide groove 113, the guide member 3 "falls" into "the second position (refer to the position b in fig. 4), and when the drive mechanism 21 moves from the first position to the second position, the pump body 12 is carried out;

when the driving mechanism 21 moves from the second position toward the first position, the second step surface 1137 restricts the guide member 3 from returning along the first guide section 1131 at the second position, the guide member 3 can only move toward the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), so that the driving mechanism 21 can be ensured to move along the second path, when the guide member 3 passes through the second step surface 1137, the guide member 3 can "drop" into the first position, and during the process of moving the driving mechanism 21 from the second position to the first position, the transmission mechanism 22 does not drive the pump body 12, the dispensing device 10 does not dispense the lotion, so that the purpose of unidirectional driving is achieved, and the two-way driving can be achieved, so that the guide member 3 can be ensured to move along the first path and the second path respectively, which is beneficial to improving the reliability of the operation of the driving assembly 2.

Alternatively, as shown in fig. 7, the first step surface 1136 is perpendicular to the bottom wall surface of the first guide section 1131, so that when the driving mechanism 21 moves from the first position to the second position, the effect of the first step surface 1136 on limiting the movement of the guide member 3 towards the second guide section 1132 can be improved, which is beneficial to ensure that when the driving mechanism 21 moves from the first position to the second position along the first guide section 1131, the reliability of the operation of the driving assembly 2 can be improved.

Alternatively, as shown in fig. 7, the second step surface 1137 is perpendicular to the bottom wall surface of the second guiding segment 1132, so that when the driving mechanism 21 moves from the second position to the first position, the effect of the second step surface 1137 on limiting the movement of the guiding element 3 towards the first guiding segment 1131 can be improved, which is beneficial to ensure that when the driving mechanism 21 moves from the second position to the first position along the second guiding segment 1132, the reliability of the operation of the driving assembly 2 can be improved.

In some embodiments of the present invention, as shown in fig. 9 and 10, the driving mechanism 21 is formed with a mounting hole 2123, and the guide 3 is movably inserted through the mounting hole 2123. Referring to fig. 10, the mounting hole 2123 penetrates the drive mechanism 21 in the left-right direction, and the guide 3 is provided in the mounting hole 2123 movably in the left-right direction. Thereby, the structure is simple, and it is convenient to ensure that the guide member 3 is movably provided on the drive mechanism 21 in the depth direction of the guide groove 113. Alternatively, the guide 3 is formed in a cylindrical shape, and the mounting hole 2123 is also formed in a circular hole, whereby the fitting area between the guide 3 and the mounting hole 2123 can be increased, which is advantageous for ensuring the reliability of the movement of the guide 3 in the depth direction of the guide groove 113.

In some alternative embodiments of the present invention, the guide 3 is kept in surface contact with the bottom wall of the guide groove 113. Referring to fig. 9 and 10, one axial end of the guide 3 is held in surface contact with the bottom wall of the guide groove 113. Thereby, it is advantageous to ensure the reliability of the fitting of the guide 3 with the guide groove 113 when the guide 3 moves in the guide groove 113.

Specifically, as shown in fig. 3 and 4, when the driving mechanism 21 moves from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide section 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide section 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 restricts the movement of the guide member 3 toward the second guide section, the guide member 3 can only move in the extending direction of the first guide section 1131 (see a → b path 1132 in fig. 4), during which the guide member 3 is kept in contact with the bottom wall surface of the first guide section 1131, so that the reliability of the fit between the guide member 3 and the first guide section 1131 can be improved, when the guide member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guide section 1131 adjacent to the second position is higher than the portion of the bottom wall surface 1132 of the second guide section 1132 adjacent to the second position in the depth direction of the guide groove 113, the guide member 3 "drops into the second position" and drives the driving mechanism 21 to carry the second position, so that the driving mechanism 21 moves to the pump body 12, and the pump body 12;

when the driving mechanism 21 moves from the second position toward the first position, the second step surface 1137 restricts the guide member 3 from returning along the first guide section 1131 at the second position, the guide member 3 can only move toward the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), in the process, the guide member 3 is kept in contact with the bottom wall surface of the second guide section 1132, so that the reliability of the fit between the guide member 3 and the second guide section 1132 can be improved, and it is further advantageous to ensure that the driving mechanism 21 moves along the second path, when the guide member 3 passes through the second step surface 1137, the guide member 3 "drops" into the first position, and during the movement of the driving mechanism 21 from the second position to the first position, the transmission mechanism 22 does not carry the pump body 12, and the dispensing device 10 does not carry out the lotion, so that the purpose of unidirectional driving is achieved, and it can be thus ensured that the guide member 3 respectively moves along the first path and the second path, and the reliability of the operation of the driving assembly 2 can be improved.

In some alternative embodiments of the present invention, as shown in fig. 9, the driving mechanism 21 is provided with an elastic holder 34, and the elastic holder 34 has an elastic force to the guide 3 so that the guide 3 is kept in surface contact with the bottom wall of the guide groove 113. Thereby, it is advantageous to ensure that the guide 3 is always in surface contact with the bottom wall of the guide groove 113 during the movement of the drive mechanism 21 between the first position and the second position.

For example, referring to fig. 9, the driving mechanism 21 is provided with a mounting hole 2123, the mounting hole 2123 includes a first hole section 2124 and a second hole section 2125 which are communicated with each other, a cross-sectional area of the first hole section 2124 is larger than a cross-sectional area of the second hole section 2125, the guide member 3 includes an abutting portion 31, a stopping portion 32 and a guide portion 33 which are connected in sequence, a cross-sectional area of the stopping portion 32 is larger than a cross-sectional area of the guide portion 33, an elastic retaining member 34 is connected between the stopping portion 32 and a side wall of the first hole section 2124 close to the second hole section 2125, the stopping portion 32 is movably provided in the first hole section 2124, the guide portion 33 is movably provided in the second hole section 2125, and the elastic retaining member 34 has an elastic force on the stopping portion 32 so that the abutting portion 31 is kept in surface contact with the bottom wall of the guide groove 113.

Specifically, when the driving mechanism 21 moves from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide section 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide section 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 restricts the movement of the guide member 3 toward the second guide section 1132, the guide member 3 can only move in the extending direction of the first guide section 1131 (refer to a → b path in fig. 4), during which the elastic retaining member 34 is in a compressed state, the elastic retaining member 34 normally pushes the stopper portion 32, so that the guide member 3 is kept in contact with the bottom wall surface of the first guide section 1131, thereby improving the reliability of the fit between the guide member 1133 and the first guide section 1131, when the guide member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guide section 1131 adjacent to the second position is higher than the portion 1132 of the bottom wall surface of the second guide section 1131 adjacent to the second position in the depth direction of the guide groove 113, the driving mechanism 21 moves to carry the second position, and the driving mechanism 21 moves to the pump body, thereby releasing the second position, and the driving mechanism 21 moves, and the second guide mechanism 21 moves;

when the driving mechanism 21 moves from the second position toward the first position, at the second position, the second step surface 1137 restricts the guide member 3 from returning along the first guide section 1131, the guide member 3 can only move toward the first position along the path of the extending direction (refer to b → c → d → a in fig. 4) of the second guide section 1132, during which the elastic holder 34 is in a compressed state, the elastic holder 34 always pushes the guide member 3 so that the guide member 3 is kept in contact with the bottom wall surface of the second guide section 1132, thereby improving the reliability of the fit between the guide member 3 and the second guide section 1132, and further facilitating the movement of the driving mechanism 21 along the second path, when the guide member 3 passes through the second step surface 1137, the guide member 3 will "drop" into the first position, and during the movement of the driving mechanism 21 from the second position to the first position, the transmission mechanism 22 will not move with the pump body 12, the dispensing device 10 does not dispense lotion unidirectionally, thereby achieving the purpose of unidirectional driving, and thereby making it possible to ensure the reciprocating movement of the guide member 3 along the second path and the first path 2, respectively, thereby improving the reliability of the driving assembly.

In some embodiments of the invention, as shown in fig. 10, the profile 1191 is provided on the side of the pump housing 11 opposite to the bottom wall of the guide groove 113, for example, the profile 1191 may be defined by a partial structure of the pump housing 11, the wall surface of the profile 1191 facing the guide groove 113 is formed into a profile surface 1192 adapted to the bottom wall surface of the guide groove 113, and the guide 3 is held in contact with both the bottom wall surface of the guide groove 113 and the profile surface 1192. It can be understood that the guide 3 can be kept in contact with the bottom wall surface of the guide groove 113 all the time only by the constraint of the contours of the guide groove 113 and the contour surface 1192, without additional elastic auxiliary structures, and the structure is simple and convenient to implement.

In some embodiments of the present invention, as shown in fig. 5 and 7, at least a portion of the bottom wall surface of the second guide segment 1132 adjacent to the first position forms a first transition surface 1138, the first transition surface 1138 is connected with the first step surface 1136, and the first transition surface 1138 is gradually increased toward the first position in the direction from the second position to the first position (see fig. 5), so that the guide member 3 can be guided to the first step surface 1136 by the first transition surface 1138 during the movement of the guide member 3 along the second guide segment 1132 from the second position to the first position, which is beneficial to prevent the guide member 3 from being jammed and to improve the reliability of the operation of the drive assembly 2.

Referring to fig. 6 and 7, at least a portion of the bottom wall surface of the first guide section 1131 adjacent to the second position forms a second transition surface 1139, the second transition surface 1139 is connected to the second step surface 1137, and the second transition surface 1139 is gradually increased in the direction from the first position to the second position. Therefore, in the process that the guide piece 3 moves from the first position to the second position along the first guide section 1131, the guide piece 3 can be guided to the second step surface 1137 through the second transition section, which is beneficial to preventing the guide piece 3 from being stuck and improving the working reliability of the driving assembly 2.

For example, a portion of the bottom wall surface of the second guide section 1132 adjacent to the first position constitutes a first transition surface 1138, the first transition surface 1138 is connected to the first step surface 1136, and the first transition surface 1138 gradually increases in height and smoothly transitions in the direction from the second position to the first position; a portion of the bottom wall surface of the first guide section 1131 adjacent to the second position forms a second transition surface 1139, the second transition surface 1139 is connected to the second step surface 1137, and the second transition surface 1139 gradually increases in height and smoothly transitions toward the second position in the direction from the first position to the second position.

Specifically, when the drive mechanism 21 moves from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide section 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide section 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 restricts the movement of the guide member 3 toward the second guide section 1132, the guide member 3 can move only in the extending direction of the first guide section 1131 (refer to a → b path in fig. 4), in the process, by connecting the second transition surface 1139 with the second step surface 1137, the second transition surface 1139 gradually increases toward the second position in the direction from the first position to the second position, the second transition section can guide the guide member 3 to the second step surface 1137, when the guide member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guide section 1131 adjacent to the second position is higher than the portion of the bottom wall surface of the second guide section 1137 in the depth direction of the guide groove 113, the drive mechanism drops into the second position of the drive mechanism 21, and the drive mechanism drops into the second guide groove 21, and the pump body 12;

when the driving mechanism 21 moves from the second position toward the first position, the second step surface 1137 restricts the guide member 3 from returning along the first guide section 1131 at the second position, the guide member 3 can only move toward the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), in the process, the first transition surface 1138 is connected with the first step surface 1136, the first transition surface 1138 gradually increases in the direction from the second position to the first position, the first transition section can guide the guide member 3 to the first step surface 1136, when the guide member 3 passes through the first step surface 1136, the guide member 3 "falls into" the first position, and during the movement of the driving mechanism 21 from the second position to the first position, the transmission mechanism 22 does not carry away the pump body 12, the dispensing device 10 does not dispense the lotion, thereby achieving the purpose of unidirectional driving, and this can ensure that the reciprocating movement of the guide member 3 along the second guide path and the first position, respectively, and the reliability of the driving assembly can be improved.

In some embodiments of the present invention, referring to fig. 3, 4 and 7, the second guide section 1132 is further formed on the bottom wall surface thereof with a limiting protrusion 114, the limiting protrusion 114 is located between the first guide section 1131 and the second guide section 1132, and both ends of the limiting protrusion 114 are spaced apart from the side wall of the guide groove 113 and define a first communication gap 115 and a second communication gap 116, respectively, which are communicated with the first guide section 1131 and the second guide section 1132. For example, as shown in fig. 4, the limiting protrusion 114 extends in the up-down direction, and in the front-rear direction, the limiting protrusion 114 is located between the first guide section 1131 and the second guide section 1132, an upper end of the limiting protrusion 114 is spaced apart from an upper side wall of the guide groove 113 to define the first communication gap 115, and a lower end of the limiting protrusion 114 is spaced apart from a lower side wall of the guide groove 113 to define the second communication gap 116. It can be appreciated that after guide 3 moves from the first position to the second position along first guide section 1131, guide 3 can enter second guide section 1132 through second communication gap 116, and after guide 3 moves from the first position to the second position along second guide section 1132, guide 3 can enter first guide section 1131 through first communication gap 115 and reciprocate therewith, so that limit projection 114 can separate the non-engaged portions of first guide section 1131 and second guide section 1132, which is beneficial for ensuring the reliability of movement of guide 3 in first guide section 1131 and second guide section 1132, respectively.

In some embodiments of the present invention, referring to fig. 4, the first guide section 1131 extends along a straight line, and in a direction from the second position to the first position, the second guide section 1132 includes a first sub-guide section 1133, a second sub-guide section 1134, and a third sub-guide section 1135, which are arranged in sequence, the second sub-guide section 1134 is parallel to the first guide section 1131, and the second sub-guide section 1134, the first sub-guide section 1133, and the third sub-guide section 1135 are all provided with an included angle, and the included angle is an obtuse angle. It can be understood that, as shown in fig. 3 and 4, by making the first guide section 1131 extend along a straight line, it is beneficial to ensure that the first transmission element 221 and the second transmission element 222 are in a matching state during the process of moving the driving mechanism 21 from the first position to the second position, and it is beneficial to ensure that the transmission mechanism 22 reliably drives the pump body 12 to move, so as to implement the dispensing of the lotion, the second guide section 1132 includes a first sub-guide section 1133, a second sub-guide section 1134 and a third sub-guide section 1135 which are arranged in sequence, and the second sub-guide section 1134 is parallel to the first guide section 1131, and an included angle is formed between the second sub-guide section 1134 and the first sub-guide section 1133 and the third sub-guide section 1135, and is an obtuse angle, and during the process of moving the driving mechanism 21 from the second position to the first position, it is beneficial to ensure that the first transmission element 221 and the second transmission element 222 are separated, so as to ensure that the transmission mechanism 22 does not drive the pump body 12 to move, thereby achieving the purpose of unidirectional driving.

In some embodiments of the present invention, referring to fig. 3, the driving mechanism 21 includes a first driving member 211 and a second driving member 212, the guiding member 3 is disposed on the second driving member 212, the transmission mechanism 22 is connected between the second driving member 212 and the pump body 12, the first driving member 211 is movable between a first position and a second position, and the first driving member 211 drives the second driving member 212 to move during the process of moving the first driving member 211 from the first position to the second position. It can be understood that, by making the first driving member 211 movable between the first position and the second position, the motion track of the first driving member 211 can be ensured to be straight, which is beneficial for ensuring the reliability of the motion of the driving mechanism 21.

In alternative embodiments of the present invention, and as shown in FIG. 3, the second drive member 212 is rotatably coupled to the first drive member 211. For example, the second driving member 212 may be rotatably connected to the first driving member 211 by a rotating shaft 2121. Therefore, in the process that the first driving member 211 moves from the first position and the second position, the second driving member 212 can rotate relative to the first driving member 211, and the motion state of the second driving member 212 can be controlled by controlling the motion path of the guide member 3, so that the second driving member 212 can control whether the transmission mechanism 22 drives the pump body 12 to move, and the reliability of one-way driving can be improved.

In some embodiments of the present invention, referring to fig. 3, the first driving member 211 is formed with a guide hole 2111 extending in an arc shape, the second driving member 212 is formed with a guide post 2122 engaged with the guide hole 2111, and the guide post 2122 moves in the extending direction of the guide hole 2111 when the second driving member 212 rotates relative to the first driving member 211. For example, referring to fig. 3, the guide hole 2111 is formed as an arc hole, and the maximum rotation angle of the second driving member 212 is α by the fitting of the guide post 2122 to the guide hole 2111. It will be appreciated that by moving the guide post 2122 along the extension direction of the guide hole 2111, the maximum rotation angle of the first driving member 211 can be limited, which is beneficial to ensure the reliability of the rotation of the second driving member 212 and prevent the abnormal operation of the driving assembly 2.

In some embodiments of the present invention, referring to fig. 3, the driving assembly 2 further comprises an elastic return mechanism 223, and the elastic return mechanism 223 comprises a first elastic return member 2231 for returning the first driving member 211 to the first position. It is understood that, when the user drives the driving mechanism 21 to move from the first position to the second position, the first elastic resetting member 2231 applies an elastic deformation force to the first driving member 211 toward the first position, and when the human hand releases, the first driving member 211 is reset to the first position by the first elastic resetting member 2231. For example, the first elastic reset 2231 may be a spring, and the first elastic reset 2231 is configured to drive the driving mechanism 21 to move to reset to the first position. Of course, the present invention is not limited thereto, and the driving assembly 2 may not include the first elastic restoring member, and the first driving member 211 may be manually driven to return to the first position.

Specifically, when the user drives the first driving member 211 to move from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide section 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide section 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 limits the movement of the guide member 3 toward the second guide section 1132, the guide member 3 can only move in the extending direction of the first guide section 1131 (refer to a → b path in fig. 4), the movement locus of the second driving member 212 is a straight line, the second driving member 212 drives the driving mechanism 21 to move to drive the pump body 12, so that the dispensing of the lotion is realized, when the guide member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guide section 1131 adjacent to the second position is higher than the portion of the bottom wall surface of the second guide section 1132 adjacent to the second position in the depth direction of the guide groove 113, the guide member 3 "falls" into "the second position", and, at the same time, the first driving mechanism 2231 is reset in this elastic process;

when the driving force of the user is removed, the first driving member 211 moves from the second position to the first position under the driving of the first elastic resetting mechanism 2231, and at the second position, the second step surface 1137 limits the guide member 3 from returning along the first guide section 1131, and the guide member 3 can only move towards the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), so that it can be ensured that the driving mechanism 21 moves along the second path, at this time, the guide member 3 drives the second driving member 212 to rotate, the moving track of the second driving member 212 is an arc, the transmission mechanism 22 does not drive the pump body 12 to move, the dispensing device 10 does not dispense lotion, and therefore, the purpose of unidirectional driving is achieved, and when the guide member 1133 passes through the second step surface 1137, the guide member 3 "falls into" the first position.

In some alternative embodiments of the present invention, referring to fig. 12, the pump housing 11 is further formed with a slide slot 1193 (the slide slot extending in the up-down direction is indicated by a broken line in fig. 12) extending along the moving direction of the first driving member 211 (refer to the up-down direction in fig. 1), the second driving member 212 is provided with a slide member 2126, the slide member 2126 is rotatably disposed on the slide slot 1193 and is movable along the extending direction of the slide slot 1193, and the first driving member 211 and the second driving member 212 are in the moving direction of the first driving member 211. Therefore, the first driving member 211 and the second driving member 212 can be provided as a separate member, and the first driving member 211 and the second driving member 212 do not need to be connected by a rotating shaft structure, which is beneficial to simplifying the structure of the driving mechanism 21. For example, referring to fig. 12, the slider 2126 is formed in a cylindrical shape, one axial end of the slider 2126 is fixed to the upper end of the second driving member 212, the other axial end of the slider 2126 is fitted to the slide groove 1193, the slide groove 1193 is formed as a strip-shaped groove and extends in the up-down direction, and the slider 2126 is rotatably and movably connected to the slide groove 1193.

In some embodiments of the present invention, the driving assembly 2 further comprises an elastic reset mechanism 223, and the elastic reset mechanism 223 comprises a second elastic reset part 2232, and the second elastic reset part 2232 is used for driving the second driving member 212 to reset. It is understood that, when the user drives the driving mechanism 21 to move from the first position to the second position, the second elastic resetting member 2232 applies an elastic deformation force to the second driving member 212 toward the first position, and when the human hand releases the elastic resetting member 2232, the second driving member 212 drives the first driving member 211 to reset to the first position. For example, referring to fig. 12, the second elastic restoring member 2232 may be a spring, the second elastic restoring member 2232 is connected between the bottom wall of the slide slot 1193 and the sliding member 2126, and the second elastic restoring member 2232 is used for driving the second driving member 212 to move to restore to the first position.

Specifically, when the user drives the first driving member 211 to move from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guiding section 1132, which is adjacent to the first position, is higher than the portion of the bottom wall surface of the first guiding section 1131, which is adjacent to the first position, in the depth direction of the guiding groove 113, the first step surface 1136 limits the movement of the guiding member 3 toward the second guiding section 1132, the guiding member 3 can only move in the extending direction of the first guiding section 1131 (refer to a → b path in fig. 4), and since the sliding member 2126 moves along the sliding groove 1193, the movement locus of the second driving member 212 is a straight line, the first transmission member 221 is engaged with the second transmission member 222 to move the pump body 12, so that the lotion can be dispensed, and when the guiding member 3 moves to the second step surface 1137, since the portion of the bottom wall surface of the first guiding section 1131, which is adjacent to the second position, is higher than the portion of the bottom wall surface of the second guiding section 1131, which is adjacent to the second position, in the depth direction of the guiding groove 113, the guiding section 1133 "moves to the second position", and the second driving mechanism 2232, which is reset process, and is reset;

when the driving force F of the user is removed, under the driving of the second elastic resetting mechanism 2232, the second driving member 212 pushes the first driving member 211 to move from the second position toward the first position, and at the second position, the second stepped surface 1137 limits the guide member 3 to return along the first guide section 1131, the guide member 3 can only move toward the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), so that it can be ensured that the driving mechanism 21 moves along the second path, at this time, the guide member 3 drives the second driving member 212 to rotate relative to the chute 1193, the moving track of the first driving member 211 is an arc, the transmission mechanism 22 does not carry out the movement of the pump body 12, the dispensing device 10 does not dispense lotion, thereby achieving the purpose of unidirectional driving, and when the guide member 3 passes through the second stepped surface 1137, the guide member 3 can "drop" into the first position.

In some embodiments of the present invention, referring to fig. 3, the transmission mechanism 22 includes a first transmission member 221 and a second transmission member 222 which are connected in a transmission manner, the first transmission member 221 is connected to the second driving member 212, the second transmission member 222 is connected to the pump body 12, the first transmission member 221 and the second transmission member 222 are connected in a transmission manner during the process of moving the first driving member 211 from the first position to the second position, and the first transmission member 221 and the second transmission member 222 are separated during the process of moving the first driving member 211 from the second position to the first position. It can be understood that, during the process of moving the driving mechanism 21 from the second position to the first position, by separating the first transmission member 221 from the second transmission member 222, the first transmission member 221 cannot drive the second transmission member 222 to rotate, thereby advantageously ensuring that the pump body 12 does not move during the process, and thus advantageously avoiding reverse suction of the lotion through the lotion outlet 112 by the dispensing pump 1.

In some embodiments of the present invention, referring to fig. 3, the first transmission member 221 is a rack extending in a direction from the first position to the second position, and the second transmission member 222 is a gear. For example, referring to fig. 4, the first transmission member 221 includes a plurality of mating teeth, the plurality of mating teeth are arranged on the second driving member 212 at intervals in the vertical direction, the second transmission member 222 is adapted to be engaged with the plurality of mating teeth, and referring to fig. 8, the pump body 12 includes two sub-pump bodies 121 engaged with each other, wherein a portion of one of the sub-pump bodies 121 passes through the pump housing 11 and is fixedly connected with the second transmission member 222, and the rotation axis of the sub-pump body 121 and the rotation axis of the second transmission member 222 are on the same straight line. It can be understood that, since the motion track of the first driving element 221 is a straight line, and the first driving element 221 is a rack extending in the direction from the first position to the second position, in the process of moving the first driving element 221 from the first position to the second position, the reliability of the fit between the first driving element 221 and the second driving element 222 is improved, so as to prolong the service life of the dispensing device 10.

Specifically, as shown in fig. 4, when the user drives the first driving element 211 to move from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide segment 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide segment 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 limits the movement of the guide element 3 toward the second guide segment 1132, the guide element 3 can only move along the extending direction of the first guide segment 1131 (refer to a → b path 1132 in fig. 4), the movement track of the second driving element 212 is a straight line, the first driving element 221 is engaged with the second driving element 222 to drive the pump body 12 to move, so as to implement the dispensing of the lotion, when the guide element 1133 moves to the second step surface 1132, since the portion of the bottom wall surface of the first guide segment 1131 adjacent to the second position is higher than the portion of the bottom wall surface of the second guide segment 1132 adjacent to the second position in the depth direction of the guide groove 113, the guide element 3 "falls" into "at the second position, and is reset process by the first elastic mechanism 2231;

when the driving force F of the user is removed, the first driving member 211 moves from the second position toward the first position under the driving of the first elastic resetting mechanism 2231, and at the second position, the second step surface 1137 limits the return of the guide member 3 along the first guide segment 1131, and the guide member 3 can only move toward the first position along the extending direction of the second guide segment 1132 (refer to the path of b → c → d → a in fig. 4), and when the guide member 3 passes through the second step surface 1137, the guide member 3 can "drop" into the first position. Therefore, the driving mechanism 21 can be ensured to move along the second path, at this time, the guide part 3 drives the second driving part 212 to rotate, the movement track of the second driving part 212 is an arc line, the first driving part 221 is disengaged from the second driving part 222, the driving mechanism 22 does not drive the pump body 12 to move, the dispensing device 10 does not dispense the lotion, and the purpose of unidirectional driving is achieved.

In some embodiments of the present invention, the pump body 12 shown in fig. 2 and 3 is rotatably disposed within the pump housing 11 such that a suction region 1111 and a discharge region 1112 are formed within the pump housing 1111, and the pump housing 11 is formed with an inlet port 111 corresponding to the suction region 1111 and an outlet port 112 corresponding to the discharge region 1112. It will be appreciated that when dispensing device 10 is in the initial state, no lotion is present in discharge area 1112, and when movable drive member rotates pump body 12, negative pressure is generated in suction area 1111, positive pressure is generated in discharge area 1112, and lotion at inlet 111 flows to discharge area 1112 under the action of the pressure differential, during which suction at inlet 111 and discharge at outlet 112 of dispensing pump 1 are not synchronized in time until lotion can be discharged at outlet 112, after which, i.e. when dispensing device 10 is operating normally, suction at inlet 111 and discharge at outlet 112 of dispensing pump 1 are synchronized in time when drive mechanism 21 moves from the first position to the second position to dispense lotion.

The inventor finds in practical research that the principle of the manual dispensing device in the related art is to use a reciprocating device similar to a plunger pump for changing the volume ratio of a cavity of a pumping and discharging device to achieve liquid suction and liquid discharge, and the liquid suction action and the liquid discharge action are alternately performed, in other words, the liquid suction and the liquid discharge of the manual dispensing device in the related art are located in the same area and are asynchronous in time, the liquid discharge force is provided by manual pressing, the power required by liquid suction is provided by spring return, and the manual dispensing device is similar to a pressing and dispensing device for shampoo or liquid soap in daily life, but due to the fact that the capacity of washing equipment such as a washing machine, a dishwasher and the like is large, the required amount of the washing agent for each washing is far larger than the single use amount of the liquid soap or the liquid soap in daily life, the pump cavity needs to be made large, or the pressing times of a user become more, and the user experience is poor.

According to the dispensing device provided by the embodiment of the invention, the movement stroke of the driving assembly 2 can be controlled to realize quantitative control of the dispensing amount of the lotion, and the liquid absorption area 1111 and the liquid discharge area 1112 of the dispensing pump 1 are located in different areas, so that when the dispensing device 10 works normally, liquid absorption at the liquid inlet 111 and liquid discharge at the liquid outlet 112 of the dispensing pump 1 are synchronous in time, the dispensing amount of the dispensing pump 1 is not limited by the volume of the dispensing pump 1, the single-dispensing dosage of the dispensing device 10 can be increased, the dispensing precision of the single-dispensing can be ensured, the dispensing times can be reduced, the precision requirement can be ensured, the dispensing device can meet the dispensing requirement of large-capacity washing equipment 1000 such as a washing machine and a dishwasher and the like on the lotion, and the use experience of a user can be improved.

Alternatively, in some examples, and as shown in fig. 1 and 2, the pump housing 11 includes a housing portion 1181 and an end cap 1182, the end cap 1182 is detachably disposed at an open end of the housing portion 1181, a relatively sealed pump chamber 1183 (see fig. 3) is defined between the housing portion 1181 and the end cap 1182, and the pump body 12 is rotatably disposed in the pump chamber 1183. It will be appreciated that installation and replacement of the pump body 12 is facilitated by having the end cap 1182 removably disposed at the open end of the housing portion 1181. For example, end cap 1182 may be connected to housing 1181 by a snap-fit, rivet, or threaded fastener connection.

In some embodiments of the present invention, as shown with reference to fig. 8, the pump body 12 includes two rotatable and mutually engaged sub-pump bodies 121, for example, the rotation axes of both sub-pump bodies 121 extend in the horizontal direction. It can be understood that, by making the pump body 12 include two rotatable and mutually engaged sub-pump bodies 121, it is beneficial to improve the operational reliability of the dispensing pump 1, and to avoid leakage of the dispensing pump 1 when the dispensing pump 1 is not in operation.

Alternatively, referring to FIG. 13, the pump body 12 is a vane pump 14. It will be appreciated that the impeller pump 14 rotates the liquid at a high speed to impart mechanical energy to the liquid for the purpose of delivering the liquid. For example, the impeller pump 14 may be a centrifugal or axial impeller pump.

In some alternative embodiments of the invention, as shown in fig. 3 and 13, the pump body 12 comprises two rotatable and externally engaged sub-pump bodies 121, the sub-pump bodies 121 being gears (see fig. 3) or screws (see fig. 13). Therefore, the structure is simple, the reliability of the work of the pump body 12 is further improved, and the throwing precision of single throwing is ensured. Of course, the present invention is not limited to this, the pump body 12 may also be replaced by two gear pump bodies that can rotate and mesh internally, for example, the pump body 12 may include an internal gear and an external gear, the external gear is located inside the internal gear and is eccentrically disposed relative to the internal gear, the driving assembly 2 may be connected to the external gear, so as to drive the transmission mechanism 22 to drive the external gear to rotate through the movement of the driving mechanism 21, the external gear drives the internal gear to rotate, so as to drive the lotion in the pump housing 11 to flow, so as to generate a negative pressure at the liquid inlet 111, and generate a positive pressure at the liquid outlet 112, so that the lotion in the liquid suction region 1111 flows to the liquid discharge region 1112 under the effect of the pressure difference and is discharged through the liquid outlet 112, so as to implement the dispensing of the lotion.

In some alternative embodiments of the invention, and with reference to fig. 14, the pump body 12 is an impeller pump 14, the pump housing 11 defining a mounting cavity 13 therein having a circular cross-section, the impeller pump 14 comprising: the wheel disc 141 and the plurality of blades 142, the wheel disc 141 is rotatably arranged in the installation cavity 13, the wheel disc 141 is eccentrically arranged relative to the installation cavity 13, the suction and discharge cavity 131 is defined between the outer peripheral wall of the wheel disc 141 and the inner peripheral wall of the installation cavity 13, the suction and discharge cavity 131 comprises a liquid suction area 1111 and a liquid discharge area 1112, the plurality of blades 142 are arranged at intervals in the circumferential direction of the wheel disc 141, one end of each blade 142 is connected with the wheel disc 141, and the other end of each blade 142 is elastically stopped against the inner peripheral wall of the installation cavity 13. For example, as shown in fig. 12, one end of each vane 142 is connected to the disc 141 through a spring element 143, so that the other end of each vane 142 is elastically abutted against the inner peripheral wall of the mounting cavity 13, when the vane pump 14 is driven by the driving assembly 2 to rotate clockwise, the vane 142 drives the liquid in the mounting cavity 13 to rotate, due to the eccentric arrangement of the disc 141, a negative pressure is generated at the liquid inlet 111 to achieve a liquid suction effect, and a positive pressure is generated at the liquid outlet 112, so that the liquid is squeezed out at the liquid outlet 112 to achieve a liquid discharge effect.

It can be understood that the control of the dosage of the lotion can be realized by controlling the movement stroke of the driving mechanism 21, and the liquid suction and the liquid discharge of the dispensing pump 1 are synchronous in time, so that the dosage of the dispensing pump 1 is not limited by the volume of the dispensing pump 1, the dosage of the dispensing device 10 can be increased and the dispensing precision of the dispensing device 10 can be ensured, meanwhile, because one end of each blade 142 is connected with the wheel disc 141 and the other end is elastically stopped against the inner peripheral wall of the mounting cavity 13, the reliable liquid feeding and liquid discharging of the dispensing pump 1 can be ensured, and when the impeller pump 14 stops working, the other end of each blade 142 is elastically stopped against the inner peripheral wall of the mounting cavity 13 to realize sealing, which is beneficial to avoiding the leakage of the dispensing device 10.

In some embodiments of the present invention, referring to fig. 12, the dispensing device 10 further comprises a cylindrical mounting seat 15, the mounting seat 15 is disposed in the pump housing 11 and fixed relative to the pump housing 11, a mounting cavity 13 is formed in the mounting seat 15, and the mounting cavity 13 is eccentrically disposed relative to the mounting seat 15. It can be understood that the installation seat 15 and the pump shell 11 are arranged separately, so that the respective processing difficulty of the installation seat 15 and the pump shell 11 is reduced, and the mold opening cost is reduced.

Referring to fig. 1 and 2, a dispensing assembly 100 according to an embodiment of the present invention includes: a dispensing device 10 and a storage box 20 for storing lotion, wherein the dispensing device 10 is the dispensing device 10 according to the above embodiment of the invention, the storage box 20 defines a storage cavity 201 therein, and the storage cavity 201 is communicated with the liquid inlet 111. For example, referring to FIG. 1, the storage box 20 is located above the dispensing device 10, since the lotion in the storage box 20 can flow toward the loading port 111 under the gravity.

According to the dispensing assembly 100 of the embodiment of the present invention, by providing the dispensing device 10 of the above-mentioned embodiment of the present invention, it is beneficial to avoid that the dispensing pump 1 reversely sucks the lotion through the liquid outlet 112, and the accuracy of dispensing the lotion is improved, and at the same time, the movement stroke of the pump body 12 can be controlled by reasonably setting the transmission ratio of the transmission mechanism 22, which is beneficial to increase the single dispensing amount of the dispensing device 10 and reduce the dispensing times.

In some embodiments of the present invention, as shown with reference to fig. 1 and 2, the storage case 20 is provided on the pump housing 11. Therefore, the space occupation of the storage box 20 and the pump shell 11 as a whole is reduced, and the miniaturization of the throwing assembly 100 is realized; alternatively, in other embodiments, the storage case 20 is connected to the pump housing 11 by a connection pipe, so that the connection is convenient, and the storage case 20 and the pump housing 11 can be separately arranged, thereby improving the flexibility of installation of the dispensing assembly 100.

In some embodiments of the present invention, the reservoir 20 is provided on the pump housing 11, and the reservoir 20 is detachably connected to the pump housing 11. It can be understood that, by detachably connecting the storage box 20 with the pump housing 11, the storage box 20 and the pump housing 11 can be replaced or maintained conveniently, which is beneficial to reducing the maintenance cost. For example, referring to fig. 1 and 2, the storage case 20 and the end cap 1182 are integrally formed, and the integral unit formed by the storage case 20 and the end cap 1182 is disposed at the right end of the housing 1181 and detachably connected to the housing 1181.

Alternatively, in some examples, referring to fig. 2, the integral body formed by the storage box 20 and the end cap 1182 is connected to the housing 1181 by a threaded fastener, and it can be understood that the threaded fastener has the advantages of simple structure and easy assembly, and the integral body formed by the storage box 20 and the end cap 1182 can be tightly connected to the housing 1181 by the threaded fastener, and in addition, the cost can be reduced while the connection strength between the integral body formed by the storage box 20 and the end cap 1182 and the housing 1181 is ensured. Alternatively, the threaded fasteners may be screws, bolts, or studs, among others.

Alternatively, in other embodiments, the reservoir 20 is integrally formed with the pump housing 11. It can be understood that the structure of the integrally formed structure can not only ensure the structure and the performance stability of the storage box 20 and the pump case 11, but also facilitate the forming and the simple manufacture, and save redundant assembly parts and connecting procedures, thereby greatly improving the assembly efficiency of the storage box 20 and the pump case 11, ensuring the reliability of the connection of the storage box 20 and the pump case 11, and moreover, the integrally formed structure has higher overall strength and stability, more convenient assembly and longer service life. Further, in one example, the reservoir 20, the pump housing 11, and the drive housing 1184 are integrally formed.

The washing apparatus 1000 according to an embodiment of the present invention includes: a dispensing assembly 100 according to the above described embodiment of the present invention. Wherein, the washing device 1000 may be a washing device 1000 such as a washing machine, a dishwasher, a sink, etc.

For example, as shown in fig. 11, the washing apparatus 1000 is embodied as a washing machine, the washing apparatus 1000 includes a feeding assembly 100, a water inlet valve 200, a mixing bin 300 and a washing tank 400, the feeding assembly 100 is located above the mixing bin 300 and is communicated with the mixing bin 300, the water inlet valve 200 is communicated with the mixing bin 300 to control whether water is supplied to the mixing bin 300, the washing tank 400 is located below an outlet of the mixing bin 300, and a washing solution and a water flow can be mixed in the mixing bin 300 and then flow to the washing tank 400 for washing laundry. It can be understood that when the water flows through the detergent in the mixing chamber 300, the dilution and mixing can be achieved, which is more advantageous for washing. Of course, the present invention is not limited thereto, and the dispensing assembly 100 may directly dispense the detergent into the washing tub 400.

According to the washing device 1000 of the embodiment of the present invention, by providing the dispensing assembly 100 according to the above-mentioned embodiment of the present invention, it is beneficial to avoid that the dispensing pump 1 reversely sucks the lotion through the liquid outlet 112, and the accuracy of dispensing the lotion is improved, and at the same time, the movement stroke of the pump body 12 can be controlled by reasonably setting the transmission ratio of the transmission mechanism 22, which is beneficial to increase the single dispensing amount of the dispensing device 10, reduce the dispensing times, and improve the overall performance of the washing device 1000.

The detailed structure of the dispensing device 10, the dispensing assembly 100 and the washing apparatus 1000 according to the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, of course, that the following description is intended to illustrate the invention and not to limit the invention.

Referring to fig. 1 to 9 and 11, a washing apparatus 1000 according to an embodiment of the present invention, specifically, the washing apparatus 1000 is a washing machine, and the washing apparatus 1000 includes a supply assembly 100, a water inlet valve 200, a mixing bin 300, and a washing tub 400.

Referring to fig. 11, the dispensing assembly 100 is located above the mixing bin 300 and communicates with the mixing bin 300, the water inlet valve 200 is connected to the mixing bin 300 to control whether water is supplied to the mixing bin 300, the washing tank 400 is located below an outlet of the mixing bin 300, and the washing agent and the water can be mixed in the mixing bin 300 and then flow to the washing tank 400 for washing laundry. It can be understood that when the water flows through the detergent in the mixing bin 300, the dilution and mixing can be achieved, which is more advantageous for washing.

Referring to fig. 1 and 2, the dispensing assembly 100 includes a dispensing device 10 and a storage case 20 for storing lotion, the storage case 20 communicating with the dispensing device 10 to supply the lotion to the dispensing device 10.

Referring to fig. 3-5, the dispensing device 10 includes a dispensing pump 1 and a driving assembly 2, the dispensing pump 1 specifically includes a pump housing 11 and a pump body 12, optionally, the pump housing 11 includes a housing portion 1181 and an end cap 1182, the housing portion 1181 is integrally formed with a storage box 20, the storage box 20 is integrally formed with the end cap 1182, and the storage box 20 and the end cap 1182 are integrally formed at a right end of the housing portion 1181 and detachably connected to the housing portion 1181.

Referring to fig. 3, the pump body 12 is located in the pump housing 11 and includes two sub-pump bodies 121 that are rotatably and externally engaged, the two sub-pump bodies 121 are arranged in the front-rear direction, each sub-pump body 121 is a gear, the two sub-pump bodies 121 form a liquid suction region 1111 and a liquid discharge region 1112 arranged in the up-down direction in the pump housing 11, the pump housing 11 is formed with a liquid inlet 111 corresponding to the liquid suction region 1111 and a liquid outlet 112 corresponding to the liquid discharge region 1112, specifically, the liquid inlet 111 is located below the engagement portion of the two sub-pump bodies 121 and is communicated with the storage box 20, and the liquid outlet 112 is located above the engagement portion of the two sub-pump bodies 121.

Referring to fig. 9, the dispensing device 10 further includes a driving housing 1184 for mounting the driving assembly 2, the driving housing 1184 has a driving cavity 1187, the driving assembly 2 is disposed in the driving cavity 1187, the driving housing 1184 and the housing 1181 are an integral component, a diversion cavity 1185 having a discharge outlet 1186 is defined between the driving housing 1184 and the pump housing 11, the diversion cavity 1185 extends in the up-down direction and is spaced apart from the driving cavity 1187, the diversion cavity 1185 is communicated with the liquid outlet 112, and the lotion flowing out of the liquid outlet 112 can flow to the diversion cavity 1185 and flow into the mixing bin 300 through the discharge outlet 1186.

Referring to fig. 3, the driving assembly 2 is disposed in the driving housing 1184, the driving assembly 2 includes a driving mechanism 21, a transmission mechanism 22, a guiding element 3, and a first elastic resetting element 223, the driving mechanism 21 includes a first driving element 211 and a second driving element 212 in a first position, the first driving element 211 is movable in a first position and a second position, an upper end of the first elastic resetting element 223 is connected to the first driving element 211, a lower end of the first elastic resetting element 223 is connected to an inner bottom wall of the driving cavity 1187, and the first elastic resetting element 223 is configured to drive the first driving element 211 to return to the first position.

Referring to fig. 3, one end of the second driving member 212 is rotatably connected to the first driving member 211 through a rotating shaft 2121, the guiding element 3 is disposed at the other end of the second driving member 212, a guiding groove 113 is formed in an inner side wall of the driving cavity 1187, when the first driving member 211 moves, the second driving member 212 is driven to move so as to drive the guiding element 3 to move along an extending direction of the guiding groove 113, the guiding groove 113 includes a first guiding section 1131 and a second guiding section 1132, the first guiding section 1131 forms a first path of the movement of the guiding element 3, and the second guiding section 1132 forms a second path of the movement of the guiding element 3.

Specifically, referring to fig. 9, the mounting hole 2123 includes a first hole section 2124 and a second hole section 2125 which are communicated with each other, a cross-sectional area of the first hole section 2124 is larger than a cross-sectional area of the second hole section 2125, the guide 3 includes an abutting portion 31, a stopping portion 32 and a guide portion 33 which are connected in sequence, a cross-sectional area of the stopping portion 32 is larger than a cross-sectional area of the guide portion 33, an elastic holder 34 is provided between the stopping portion 32 and a side wall of the first hole section 2124 close to the second hole section 2125, and the elastic holder 34 has an elastic force on the stopping portion 32 so that the abutting portion 31 is in surface contact with a bottom wall of the guide groove 113.

Referring to fig. 7, a limiting protrusion 114 is further formed on the bottom wall surface of the second guide section 1132, the limiting protrusion 114 is located between the first guide section 1131 and the second guide section 1132, and both ends of the limiting protrusion 114 are spaced apart from the side wall of the guide groove 113 and respectively define a first communication notch 115 and a second communication notch 116 which are communicated with the first guide section 1131 and the second guide section 1132.

Referring to fig. 4 and 7, in the depth direction of the guide groove 113, a portion of the bottom wall surface of the second guide segment 1132 adjacent to the first position is higher than a portion of the bottom wall surface of the first guide segment 1131 adjacent to the first position, the first guide segment 1131 and the second guide segment 1132 are formed with a first step surface 1136 adjacent to the first position, a portion of the bottom wall surface of the first guide segment 1131 adjacent to the second position is higher than a portion of the bottom wall surface of the second guide segment 1132 adjacent to the second position, the first guide segment 1131 and the second guide segment 1132 are formed with a second step surface 1137 adjacent to the second position, and the guide member 3 is movably provided on the drive mechanism 21 in the depth direction of the guide groove 113.

Referring to fig. 5, 6, and 7, at least a portion of the bottom wall surface of the second guide section 1132 adjacent to the first position forms a first transition surface 1138, the first transition surface 1138 is connected to the first step surface 1136, the first transition surface 1138 is gradually increased in a direction from the second position to the first position, at least a portion of the bottom wall surface of the first guide section 1131 adjacent to the second position forms a second transition surface 1139, the second transition surface 1139 is connected to the second step surface 1137, and the second transition surface 1139 is gradually increased in a direction from the first position to the second position.

Further, as shown in fig. 3, the first driving member 211 is formed with a guide hole 2111 extending in an arc shape, the second driving member 212 is formed with a guide post 2122 engaged with the guide hole 2111, and when the second driving member 212 rotates relative to the first driving member 211, the guide post 2122 moves in the extending direction of the guide hole 2111.

The transmission mechanism 22 is connected between the second driving member 212 and the rear sub-pump body 121, the first driving member 211 is movable between a first position and a second position, the transmission mechanism 22 includes a first transmission member 221 and a second transmission member 222 which are connected in a transmission manner, the first transmission member 221 is connected to the second driving member 212 and is a rack extending in a direction from the first position to the second position, the second transmission member 222 is a gear and is connected to the rear sub-pump body 121, the first transmission member 221 and the second transmission member 222 are connected in a transmission manner during the movement of the first driving member 211 from the first position to the second position, and the first transmission member 221 and the second transmission member 222 are separated during the movement of the first driving member 211 from the second position to the first position.

Specifically, when the user drives the first driving element 211 to move from the first position toward the second position, at the first position, since the portion of the bottom wall surface of the second guide section 1132 adjacent to the first position is higher than the portion of the bottom wall surface of the first guide section 1131 adjacent to the first position in the depth direction of the guide groove 113, the first step surface 1136 restricts the movement of the guide element 3 toward the second guide section 1132, the guide element 3 can only move along the extending direction of the first guide section 1131 (refer to path a → b in fig. 4), the movement locus of the second driving element 212 is a straight line, the first driving element 221 drives the second driving element 222 to rotate, the second driving element 222 drives the corresponding sub-pump body 121 to rotate, so as to generate negative pressure in the liquid suction area, generate positive pressure in the liquid discharge area 1112, the lotion at the liquid inlet 111 flows to the liquid discharge area 1112 under the action of the pressure difference, is discharged to the flow cavity 1185 through the liquid outlet 1186 into the mixing chamber 300 to realize the dispensing of the lotion, and finally flows into the second guiding chamber 300 through the discharge outlet 1186 to realize the dispensing of the lotion, when the guide groove 3 moves to the second guiding section 113, and the portion 1132 is reset in the depth direction of the second guide groove 113, and the second guide section 1132, and the portion is reset process that the second step surface is adjacent to the second guide groove 113 adjacent to the second position;

when the driving force F of the user is removed, under the driving of the first elastic resetting mechanism 2231, the first driving element 211 moves from the second position toward the first position, and at the second position, the second step surface 1137 limits the guide element 3 from returning along the first guide section 1131, and the guide element 3 can only move toward the first position along the extending direction of the second guide section 1132 (refer to the path of b → c → d → a in fig. 4), so that it can be ensured that the driving mechanism 21 moves along the second path, at this time, the guide element 3 drives the second driving element 212 to rotate, the moving track of the second driving element 212 is an arc, the first driving element 221 and the second driving element 222 are separated, and the dispensing device 10 does not dispense the lotion, thereby achieving the purpose of unidirectional driving, and when the guide element 3 passes through the second step surface 1137, the guide element 3 "falls into" the first position.

It can be understood that, referring to fig. 8, the liquid absorbing area 1111 and the liquid discharging area 1112 of the dispensing pump 1 adopted in the embodiment of the present invention are located in different areas, when the dispensing device 10 works normally, a user drives the first driving member 211 to move from the first position to the second position to implement dispensing, and liquid absorption at the liquid inlet 111 and liquid discharge at the liquid outlet 112 of the dispensing pump 1 are completed synchronously in time, so that a large restoring force is not required, and dispensing can be completed only with a small acting force, which can greatly improve comfort of user operation, and meanwhile, the transmission ratio between the first driving member 221 and the second driving member 222 is fixed, and the moving distance of the driving member is fixed, so that the number of rotation turns of the corresponding sub-pump body 121 is fixed, and a single dispensing amount of the dispensing device 10 is fixed, and a user can obtain an accurate dispensing total amount by controlling the number of dispensing times, and on the basis that the volume of the dispensing device 10 is fixed, the single dispensing amount of the dispensing device 10 of the embodiment of the present invention is large, which is beneficial to reducing the number of user operation, and is beneficial to further improving user experience;

when the driving force of the user is cancelled, under the resetting effect of the first elastic resetting piece 223 and the constraint of the guide groove 113, the guide frame automatically returns to the first position from the second position along the extending direction (refer to the path b → c → d → a in fig. 4) of the second guide section 1132, which is beneficial to ensuring the separation of the first transmission piece 221 and the second transmission piece 222, thereby achieving the purpose of one-way driving, and being beneficial to preventing the dispensing pump 1 from reversely sucking lotion through the liquid outlet 112, and simultaneously avoiding the influence of the resistance of the pump body 12 when the driving mechanism 21 resets, and being beneficial to accelerating the returning of the first elastic resetting piece 223, and being beneficial to improving the use experience of the user.

Other constructions and operations of the dispensing device 10 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dispensing device for dispensing a lotion, comprising:

the feeding pump comprises a pump shell and a pump body, wherein the pump body is movably arranged in the pump shell, and a liquid inlet and a liquid outlet are formed in the pump shell;

a drive assembly including a drive mechanism and a transmission mechanism, the transmission mechanism being connected between the drive mechanism and the pump body, the drive mechanism being movable between a first position and a second position;

in the process that the driving mechanism moves from the first position to the second position, the driving mechanism drives the transmission mechanism to move so as to drive the pump body to move, so that the lotion is sucked from the liquid inlet and discharged from the liquid outlet; in the process that the driving mechanism moves from the second position to the first position, the transmission mechanism does not drive the pump body to move;

the drive mechanism moves from the first position to the second position along a first path, and the drive mechanism moves from the second position to the first position along a second path different from the first path.

2. The delivery device of claim 1, wherein the drive assembly further comprises a resilient return mechanism for driving the return of the drive mechanism to the first position.

3. The dispensing device of claim 1 wherein the drive mechanism includes a first drive member and a second drive member in driving communication, the first drive member being connected to the drive mechanism and the second drive member being connected to the pump body, the first drive member being in driving communication with the second drive member during movement of the drive mechanism from the first position to the second position, the first drive member being disconnected from the second drive member during movement of the drive mechanism from the second position to the first position.

4. The dispensing device of claim 1 wherein said first path and said second path join and form a loop in said first position and said second position, respectively.

5. The dispensing device of claim 4 wherein the first path extends along a straight line and the second path extends along a non-straight line.

6. The delivery device of claim 1, comprising: the guide piece is arranged on the driving mechanism, a guide groove is formed in the pump shell, the driving mechanism drives the guide piece to move along the extending direction of the guide groove when moving, the guide groove comprises a first guide section and a second guide section, the first guide section forms the first path, and the second guide section forms the second path.

7. The dispensing device according to claim 6, wherein a portion of the bottom wall surface of the second guide section adjacent to the first position is higher than a portion of the bottom wall surface of the first guide section adjacent to the first position in the depth direction of the guide groove, the first guide section and the second guide section are formed with a first step surface adjacent to the first position, a portion of the bottom wall surface of the first guide section adjacent to the second position is higher than a portion of the bottom wall surface of the second guide section adjacent to the second position, the first guide section and the second guide section are formed with a second step surface adjacent to the second position, and the guide member is movably provided on the drive mechanism in the depth direction of the guide groove.

8. The dispensing device of claim 7 wherein the drive mechanism has a mounting hole formed therein, the guide being movably disposed through the mounting hole.

9. The dispensing device of claim 7 wherein the guide member is held in surface contact with a bottom wall of the guide channel.

10. The dispensing device of claim 9 wherein the drive mechanism is provided with a resilient retainer having a resilient force against the guide member to maintain the guide member in surface contact with the bottom wall of the guide channel.

11. The dispensing device according to claim 9, characterized in that the pump housing is provided with a profile on the side opposite to the bottom wall of the guide groove, the wall surface of the profile facing the guide groove being formed as a contoured surface adapted to the bottom wall surface of the guide groove, the guide being in contact with both the bottom wall surface of the guide groove and the contoured surface.

12. The dispensing device of claim 7 wherein at least a portion of the bottom wall surface of the second guide section adjacent to the first position forms a first transition surface that is connected to the first step surface, the first transition surface gradually increasing in height in a direction from the second position to the first position; at least a portion of the bottom wall surface of the first guide section adjacent to the second position forms a second transition surface, the second transition surface is connected to the second step surface, and the second transition surface is gradually increased in height in a direction from the first position to the second position.

13. The delivery device according to claim 7, wherein a limiting protrusion is further formed on the bottom wall surface of the second guide section, the limiting protrusion is located between the first guide section and the second guide section, and both ends of the limiting protrusion are spaced apart from the side wall of the guide groove and respectively define a first communication gap and a second communication gap which are communicated with the first guide section and the second guide section.

14. The launch device of claim 7 wherein the first guide section extends along a straight line, and in the direction from the second position to the first position, the second guide section comprises a first sub-guide section, a second sub-guide section and a third sub-guide section arranged in sequence, the second sub-guide section is parallel to the first guide section, and the second sub-guide section and the first sub-guide section and the third sub-guide section each have an included angle therebetween, and the included angle is an obtuse angle.

15. The dispensing device of claim 7 wherein said drive mechanism includes a first drive member and a second drive member, said guide member being disposed on said second drive member, said transmission mechanism being connected between said second drive member and said pump body, said first drive member being movable between said first position and said second position, said first drive member moving said second drive member during movement of said first drive member from said first position to said second position.

16. The dispensing device of claim 15 wherein said second drive member is rotatably connected to said first drive member.

17. A dispensing device as defined in claim 16, wherein the first driving member has a guide hole formed therein and extending in an arc shape, and the second driving member has a guide post formed therein and engaged with the guide hole, the guide post moving in the direction of extension of the guide hole when the second driving member rotates relative to the first driving member.

18. The delivery device of claim 16, wherein the drive assembly further comprises a resilient return mechanism comprising a first resilient return member for driving the first drive member to return to the first position.

19. The dispensing device according to claim 15, wherein the pump housing further has a slide groove formed thereon and extending in a moving direction of the first driving member, the second driving member has a sliding member rotatably disposed thereon and movable in the extending direction of the slide groove, and the first driving member abuts against the second driving member in the moving direction of the first driving member.

20. The delivery device of claim 19, wherein the drive assembly further comprises a resilient return mechanism comprising a second resilient return member for driving the second drive member to return.

21. A delivery device according to any one of claims 15-20, wherein the transmission mechanism comprises a first transmission member and a second transmission member which are drivingly connected, the first transmission member being connected to the second drive member, the second transmission member being connected to the pump body, the first transmission member being drivingly connected to the second transmission member during movement of the first drive member from the first position to the second position, the first transmission member being disconnected from the second transmission member during movement of the first drive member from the second position to the first position.

22. A delivery device according to claim 21, wherein the first transmission member is a rack extending in the direction from the first position to the second position, and the second transmission member is a gear wheel.

23. A dispensing assembly, comprising:

a delivery device according to any one of claims 1-22;

and the storage box is used for storing the lotion, a storage cavity is defined in the storage box, and the storage cavity is communicated with the liquid inlet.

24. The dispensing assembly of claim 23 wherein the reservoir is provided on the pump housing; or the storage box is connected with the pump shell through a connecting pipe.

25. Dispensing assembly according to claim 24, characterized in that the reservoir is provided on the pump housing, the reservoir being detachably connected to the pump housing or the reservoir being integrally formed with the pump housing.

26. A washing apparatus, comprising: a delivery assembly according to any one of claims 23-25.