CN113796815B

CN113796815B - Dispensing device and dish washing machine

Info

Publication number: CN113796815B
Application number: CN202010546349.0A
Authority: CN
Inventors: 刘日超
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2023-03-07
Anticipated expiration: 2040-06-15
Also published as: CN113796815A

Abstract

The invention discloses a putting device and a dish washing machine, wherein the putting device comprises a liquid storage box and an air pressure detection sensor, a liquid storage cavity and a liquid level detection cavity are arranged in the liquid storage box, a first communication hole is formed in the cavity wall of the liquid storage cavity, the first communication hole is communicated with the liquid level detection cavity, and the liquid level detection cavity is sealed in the state that washing liquid submerges the first communication hole; the air pressure detection sensor comprises an air pressure sensing part arranged on the upper part of the liquid level detection cavity, and the air pressure sensing part is used for identifying the liquid level in the liquid storage cavity by sensing the air pressure in the liquid level detection cavity. Therefore, the residual condition of the washing liquid in the liquid storage cavity can be judged through the change of the air pressure in the washing cavity.

Description

Dispensing device and dish washing machine

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a throwing device and a dish washing machine.

Background

In the dish washer field, before the dish washer work, generally need to put into the washing liquid in the stock solution box with the washing chamber intercommunication of dish washer to at the dish washer during operation, wash the washing liquid in with the stock solution box through the motion of wasing water and wash into the washing intracavity, in order to improve the washing effect. However, this method requires that the washing liquid is put into the liquid storage box every time the dishwasher is used, which is inconvenient and cumbersome to operate.

In the related art, in order to solve the above problems, a new dispensing device is designed, which has a liquid storage cavity for storing washing liquid, so as to suck the washing liquid in the liquid storage cavity into a washing cavity of a dishwasher before or during each operation of the dishwasher. However, in this design, the remaining amount of the washing liquid in the liquid storage chamber cannot be determined, and if the washing liquid in the liquid storage chamber is exhausted and the user does not know, the dishwasher is likely to run once without the washing liquid.

Disclosure of Invention

The invention mainly aims to provide a feeding device, and aims to solve the technical problem that the residual condition of washing liquid in a liquid storage cavity of the feeding device cannot be judged in the related technology.

In order to achieve the above object, the present invention provides a dispensing device for a dishwasher, the dispensing device comprising:

the liquid storage box is internally provided with a liquid storage cavity and a liquid level detection cavity, the cavity wall of the liquid storage cavity is provided with a first communication hole, the first communication hole is communicated with the liquid level detection cavity, and the liquid level detection cavity is sealed in a state that the first communication hole is immersed by the washing liquid; and

the atmospheric pressure detects the sensor, the atmospheric pressure detects the sensor including locating liquid level detection chamber upper portion's atmospheric pressure response portion, atmospheric pressure response portion is used for through the sensing atmospheric pressure size in the liquid level detection chamber discerns liquid level in the stock solution chamber.

Optionally, the liquid storage cavity and the liquid level detection cavity are separated by a first partition plate, and the first communication hole is formed in the first partition plate.

Optionally, the lower end of the door body of the dishwasher is pivoted to the box body of the dishwasher so as to be turned downwards relative to the box body for opening;

the throwing device is used for being installed on the door body and has a vertical state corresponding to the closing of the door body and a horizontal state corresponding to the opening of the door body;

in the vertical state, the first communication hole is positioned at the lower part of the first partition plate;

in the horizontal state, the first communication hole is also located at the lower part of the first partition plate.

Optionally, a second partition plate is arranged in the liquid level detection cavity to separate a communication cavity and a moisture-proof cavity in the liquid level detection cavity; the communication cavity is communicated with the first communication hole; the second partition plate is provided with a second communication hole so as to communicate the communication cavity with the moisture-proof cavity; the air pressure sensing part is arranged in the moisture-proof cavity;

in the horizontal state, the second communication hole is located at the upper part of the second partition plate.

Optionally, in the vertical state, the moisture-proof cavity is located above the communication cavity.

Optionally, the second partition plate has a flow guide section extending toward the second communication hole, and in the vertical state, the flow guide section extends obliquely downward.

Optionally, the moisture-proof cavity has an installation cavity wall opposite to the second partition plate, the air pressure sensing part is disposed on the installation cavity wall, and in a horizontal state, the air pressure sensing part is located on the upper portion of the installation cavity wall.

Alternatively, a communication passage communicating the first communication hole and the second communication hole is formed in the communication chamber, and the communication passage has at least one detour portion.

Optionally, the communicating channel includes a plurality of communicating sub-chambers communicated in sequence, and any two adjacent communicating sub-chambers are communicated through a communicating structure; in the direction from the first communication hole to the second communication hole, any two adjacent communication structures are arranged in a staggered mode, so that the communication channel is provided with at least one circuitous part.

Optionally, the throwing device further comprises a liquid level alarm device, and the liquid level alarm device is used for giving an alarm when the detection value of the air pressure detection sensor is lower than a preset value.

Optionally, the dispensing device further comprises a liquid pumping device, the liquid pumping device is mounted on the liquid storage box, and the liquid pumping device is used for discharging the washing liquid in the liquid storage cavity.

The present invention also proposes a dishwasher, comprising:

the refrigerator comprises a shell, a door body and a refrigerator body, wherein the shell comprises a door body and a refrigerator body with an opening, and the door body is pivoted to the refrigerator body so as to open or close the opening of the refrigerator body; and

the throwing device is arranged on the door body.

According to the feeding device, the liquid level detection cavity communicated with the liquid storage cavity is arranged, and the air pressure in the liquid level detection cavity is detected through the air pressure detection sensor, so that the liquid level of the washing liquid in the liquid storage cavity can be judged according to the change of the air pressure in the liquid level detection cavity, and the residual condition of the washing liquid in the liquid storage cavity can be determined. So, can be convenient for make the user learn the washing liquid surplus in the stock solution intracavity to in time add the washing liquid after the washing liquid is used up.

And the residual condition of the washing liquid in the liquid storage cavity is detected through the change of the air pressure in the washing cavity, so that the detection accuracy can be ensured, and the cost can be reduced by adopting the air pressure detection sensor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a perspective of an embodiment of a dispensing device according to the present invention;

FIG. 2 is a schematic view of a portion of the cover and the base of FIG. 1;

FIG. 3 is a schematic structural view of the dispensing device of FIG. 1 from another perspective;

FIG. 4 is a schematic cross-sectional view of a state of the dispensing device of FIG. 1;

fig. 5 is a schematic cross-sectional view of the dispensing device of fig. 1 in another state;

fig. 6 is a schematic cross-sectional view of the dispensing device of fig. 1 in a further state;

fig. 7 is a schematic diagram of an exploded structure of the dispensing device of fig. 1;

FIG. 8 is a schematic view of the first container of the reservoir of FIG. 7;

FIG. 9 is a schematic structural view of the first container in FIG. 8 from another perspective;

FIG. 10 is a schematic view of the left portion of the first container shown in FIG. 8;

FIG. 11 is a structural view of a lower right portion of the first container in FIG. 8;

fig. 12 is a schematic structural view of the dispensing head of fig. 7;

FIG. 13 is a structural diagram illustrating a state of the base shown in FIG. 12;

FIG. 14 is a schematic view of the base of FIG. 12 in another configuration; wherein, the check valve is in an explosion state;

fig. 15 is a schematic structural view of the protective case of fig. 7;

FIG. 16 is a schematic structural diagram of the detection circuit board in FIG. 7;

fig. 17 is a schematic structural view of the cover in fig. 1.

The reference numbers illustrate:

100. a delivery device; 10. a liquid storage box; 10a, a first box body; 10b, a second box body; 11. a liquid storage cavity; 111. a liquid guiding step; 112. a liquid guide groove; 113. a liquid discharge port; 114. a liquid delivery port; 115. an outer pumping port; 116. an inner material pumping port; 117. a liquid injection port; 118. a first flow passage partition wall; 119. a second flow passage partition wall; 12. a liquid level detection chamber; 121. a communicating cavity; 1211. a communicating clapboard; 122. a moisture-proof chamber; 1221. installing a cavity wall; 123. a second separator; 1231. a flow guide section; 1232. a first communication hole; 124. a sensor mounting hole; 125. a protective cover; 1251. a vent hole; 13. a first communication hole; 14. a first separator; 151. a bottom box wall; 152. a top box wall; 161. a pump side box wall; 1611. an outer protrusion; 1612. a first mounting arm; 1613. a second mounting arm; 162. throwing in the side box wall; 1621. putting in a groove; 1622. a raised boss; 1623. a liquid injection groove; 1624. a maximum liquid level indicator; 1625. an annular seal groove; 163. a third side box wall; 164. a backside box wall; 17. a liquid discharge flow channel; 171. a terminal liquid discharge section; 172. a transverse liquid discharge section; 173. an initial liquid discharge section; 18. a liquid pumping flow passage; 181. a transverse liquid pumping section; 182. a vertical liquid pumping section; 1821. a curved flow passage; 188. a flow passage step; 189. a flow passage partition plate; 1891. a laterally extending section; 1892. a vertically extending section; 1893. a current limiting blocking rib; 191. a threaded post; 192. a support protrusion; 1921. a limiting clamping groove; 193. limiting and reversing; 20. a delivery head; 21. a base; 21a, a seat body; 21b, a middle partition plate; 211. a washing tank; 212. exposing the opening; 213. flushing the cavity; 214. an upper flushing port; 215. a lower flushing port; 216. mounting grooves; 2161. installing a side wall; 2162. connecting the bottom wall; 2163. a first shaft portion; 217. the sealing ring is convex; 2171. a communicating hole; 218. putting in a flow channel; 219. a flow passage pipe portion; 2191. a dispensing part; 2192. throwing in the extension part; 2193. a throwing-in insertion part; 2194. a throwing port; 22. a cover body; 221. a first rotary hole; 222. a second rotating shaft part; 223. the annular block is convex; 224. sealing the ring groove; 225. a rotating shaft mounting part; 23. an annular seal; 30. an air pressure detection sensor; 31. an air pressure sensing part; 32. detecting the circuit board; 33. a protective shell; 331. a protective base plate; 332. a first protective side panel; 334. a third protective side plate; 336. clamping convex; 337. avoiding the opening; 40. a liquid pumping device; 41. a liquid extraction port; 42. a liquid outlet; 50. an illuminating lamp; 60. a one-way valve; 71. a first seal ring; 72. and a second seal ring.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if the description of "first", "second", etc. is provided in the embodiment of the present invention, the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B" and encompasses either A aspect, or B aspect, or both A and B aspects.

The invention provides a feeding device and a dish washing machine. The throwing device is used for a dishwasher and is used for throwing washing liquid into a washing cavity of the dishwasher.

Specifically, the dishwasher comprises a shell and a throwing device, wherein the shell comprises a door body and a box body with an opening, and the door body is pivoted to the box body to open or close the opening of the box body; the feeding device is installed on the door body.

In one embodiment, the lower end of the door body is pivoted to the box body so as to be turned downwards relative to the box body for opening. It can be understood that the dispensing device has a vertical state corresponding to when the door body is closed and a horizontal state corresponding to when the door body is opened. For simplicity, the following description is made by default with the dispensing device in the upright position, and it is specifically pointed out when it is necessary to describe the position relationship of the dispensing device in the lying position, but the invention is not limited thereto.

In one embodiment of the present invention, as shown in fig. 1 to 17, the dispensing device 100 includes a liquid storage tank 10, a dispensing head 20, and a pneumatic pressure detecting sensor 30. In fig. 1, 3, 4, 5, 6, 8 and 9, the liquid storage box 10 is in or approximately in a vertical state at different viewing angles; in fig. 12 and 13, the base 21 is in or near an upright position at different viewing angles; in fig. 17, the cover 22 is in a substantially upright state.

As shown in fig. 6 and 9, a liquid storage cavity 11 and a liquid level detection cavity 12 are arranged in the liquid storage box 10, the liquid storage cavity 11 is used for storing washing liquid, a first communication hole 13 is arranged on the cavity wall of the liquid storage cavity 11, and the first communication hole 13 is communicated with the liquid level detection cavity 12 so as to communicate the liquid storage cavity 11 with the liquid level detection cavity 12; and the liquid level detection chamber 12 is sealed in a state that the first communication hole 13 is immersed by the washing liquid.

Specifically, the liquid storage cavity 11, the liquid level detection cavity 12 and the first communication hole 13 form a communicating vessel structure. When annotating the liquid (filling washing liquid promptly) in to stock solution chamber 11, the washing liquid accessible that gets into in the stock solution chamber 11 enters into liquid level detection chamber 12 in the first intercommunicating pore 13, and the washing liquid that gets into in the liquid level detection chamber 12 can compress the air in the liquid level detection chamber 12 to form variable space in liquid level detection chamber 12. Specifically, when the washing liquid enters the liquid level detection chamber 12, the volume of the variable space becomes smaller, and the air pressure therein becomes larger; when the washing liquid flows from the liquid level detection chamber 12 into the liquid storage chamber 11, the volume of the variable space becomes large and the air pressure therein becomes small.

When the dispensing device 100 is used, the cleaning solution in the liquid storage chamber 11 is continuously consumed, and at this time, the cleaning solution in the liquid level detection chamber 12 flows back into the liquid storage chamber 11, so that the air pressure in the liquid level detection chamber 12 becomes small.

As shown in fig. 6, the air pressure detecting sensor 30 includes an air pressure sensing portion 31 disposed in the liquid level detecting chamber 12, and the air pressure sensing portion 31 is used for identifying the liquid level of the washing liquid in the liquid storage chamber 11 by sensing the air pressure in the liquid level detecting chamber 12. Thus, the remaining amount of the cleaning solution in the reservoir chamber 11 can be determined by the air pressure detecting sensor 30.

According to the feeding device 100, the liquid level detection cavity 12 communicated with the liquid storage cavity 11 is arranged, and the air pressure in the liquid level detection cavity 12 is detected through the air pressure detection sensor 30, so that the liquid level of the washing liquid in the liquid storage cavity 11 can be judged according to the change of the air pressure in the liquid level detection cavity 12, and the residual amount of the washing liquid in the liquid storage cavity 11 can be determined. Thus, the user can know the residual amount of the cleaning solution in the liquid storage cavity 11 conveniently, so that the cleaning solution can be added in time after the cleaning solution is used up.

In addition, the residual amount of the washing liquid in the liquid storage cavity 11 is detected through the change of the air pressure in the washing cavity, so that the detection accuracy can be ensured, and the cost can be reduced by adopting the air pressure detection sensor 30.

Specifically, when the washing liquid in the liquid storage chamber 11 is consumed, the air pressure in the liquid level detection chamber 12 is decreased, and the detection value of the air pressure detection sensor 30 is decreased.

When the washing liquid with the preset surplus remains in the liquid storage cavity 11, the washing liquid with the preset surplus still submerges the first communication hole 13, but the quantity of the washing liquid is small, and at this time, the detection value of the air pressure detection sensor 30 is a first preset detection value or is within a first preset range value. That is, when the detection value of the air pressure detection sensor 30 is decreased to the first detection value or is decreased to within the first preset range, it indicates that the cleaning liquid in the reservoir chamber 11 is in a critical state (i.e., the cleaning liquid is still or may be used but not much), that is, it indicates that the cleaning liquid can be added to the reservoir chamber 11.

When the washing liquid in the stock solution chamber 11 exhausts, first through-hole 13 intercommunication liquid level detection chamber 12 and stock solution chamber 11, the atmospheric pressure in the liquid level detection chamber 12 is equal with the atmospheric pressure in the stock solution chamber 11, and at this moment, the detected value of atmospheric pressure detection sensor 30 is the second and predetermines the detected value or in the second and predetermine the within range value. That is, when the detection value of the air pressure detection sensor 30 is decreased to the second detection value or is decreased to the second preset range value, it indicates that the cleaning liquid in the reservoir chamber 11 is in a depleted state, that is, the cleaning liquid needs to be added into the reservoir chamber 11.

Further, the air pressure sensing part 31 is disposed at an upper portion of the liquid level detection chamber 12. Thus, the cleaning liquid entering the liquid level detection chamber 12 can be prevented from contacting the air pressure sensing portion 31 to cause short circuit failure.

Further, as shown in fig. 6 and 9, the liquid storage cavity 11 and the liquid level detection cavity 12 are separated by a first partition 14, and the first communication hole 13 is formed in the first partition 14. In this way, the first partition 14 is provided to separate the liquid storage chamber 11 from the liquid level detection chamber 12 in the liquid storage box 10, which facilitates the simplification of the structure.

Further, as shown in fig. 6 and 9, in the upright state, the first communication hole 13 is located at a lower portion of the first partition 14. Thus, when the amount of the washing liquid remaining in the liquid storage cavity 11 is smaller, the washing liquid can still immerse the first communication hole 13, so that the amount of the gas in the liquid level detection cavity 12 is unchanged during the use of the feeding device 100, and the detection accuracy is improved.

Further, in the horizontal state, the first communication hole 13 is also located at the lower portion of the first partition 14. It can be understood that the washing liquid has fluidity, and by making the first communication hole 13 be located at the lower portion of the first partition 14 when the lying state is also performed, it is convenient to make the putting device 100 to be able to submerge the first communication hole 13 well when the standing state is changed to the lying state. So for when the door body of dish washer is opening and closing repeatedly, put in device 100 along with at the vertical state and the horizontal state in-process that changes repeatedly, the washing liquid in the stock solution chamber 11 can submerge first through-hole 13 always, thereby makes the air quantity in the liquid level detection chamber 12 unchangeable, with the accuracy of guaranteeing to detect the liquid level variation mode through atmospheric pressure variation.

Specifically, as shown in fig. 3, 5, and 9, the liquid storage box 10 includes a bottom box wall 151, a top box wall 152 disposed opposite to the bottom box wall 151, and a first side box wall, a second side box wall, a third side box wall 163, and a fourth side box wall disposed on the periphery of the bottom box wall 151 and connecting the bottom box wall 151 and the top box wall 152, wherein the first side box wall and the second side box wall are disposed adjacent to each other and disposed opposite to the third side box wall 163, and the fourth side box wall and the second side box wall are disposed opposite to each other. Wherein the first side box wall is a pump side box wall 161, the second side box wall is a release side box wall 162, and the fourth side box wall is a back side box wall 164.

In the upright position, the bottom box wall 151 is located below the first partition 14; in the horizontal position, the backside box wall 164 is located below the first partition 14.

In particular, as shown in fig. 6 and 9, the first communication hole 13 is arranged close to the bottom box wall 151 and close to the back box wall 164, so that: in the vertical state, the first communication hole 13 is located at the lower part of the first partition 14; in the horizontal state, the first communication hole 13 is also located at the lower portion of the first partition 14.

Specifically, both side edges of the first partition plate 14 are respectively connected to the launch-side box wall 162 and the back-side box wall 164, the upper end of the first partition plate 14 is connected to the top box wall 152, and the lower end of the first partition plate 14 is connected to the bottom box wall 151. Therefore, a liquid storage cavity 11 and a liquid level detection cavity 12 can be defined in the liquid storage box 10, and the liquid storage cavity 11 and the liquid level detection cavity 12 are respectively arranged on two sides of the first partition plate 14.

Specifically, a communication notch is formed in the lower end of the first partition 14, and the communication notch, the bottom box wall 151 and the back side box wall 164 enclose to form a first communication hole 13, so that the first communication hole 13 is disposed close to the bottom box wall 151 and close to the back side box wall 164.

Further, as shown in fig. 6, 9 and 10, a liquid guiding step 111 is formed at a connection portion of the bottom case wall 151 and the feeding side case wall 162, the liquid guiding step 111 is disposed in the liquid storage case 10, and a liquid guiding groove 112 communicating with the first communication hole 13 is formed between the liquid guiding step 111 and the bottom case wall 151 and between the liquid guiding step 111 and the feeding side case wall 162. Specifically, the first communication hole 13 is disposed on a wall of the liquid guiding groove 112.

Like this, the washing liquid accessible guide liquid groove 112 in the stock solution chamber 11 flows into in the intercommunication chamber 121 to when the washing liquid surplus in the stock solution box 10 is a small amount, the washing liquid can flow into guide liquid groove 112 under the effect of gravity in, so that the first communicating hole 13 of washing liquid of less volume still can submerge, with the application scope who improves atmospheric pressure and detect sensor 30.

In some embodiments, optionally, the liquid guiding step 111 has a first step surface connected to the dispensing-side box wall 162 and a second step surface connected to the bottom box wall 151, the first step surface extends obliquely toward a direction close to the bottom box wall 151, and/or the second step surface extends obliquely toward a direction close to the back-side box wall 164. Therefore, the washing liquid in the liquid storage box 10 can be conveniently guided to the guide groove and the first communication hole 13.

Further, as shown in fig. 6, 9 and 10, a second partition plate 123 is provided in the liquid level detection chamber 12 to partition the communication chamber 121 and the moisture-proof chamber 122 inside the liquid level detection chamber 12; the communication cavity 121 is communicated with the first communication hole 13; the second partition 123 is provided with a second communication hole 1232 to communicate the communication chamber 121 with the moisture proof chamber 122; the air pressure sensing part 31 is disposed in the moisture-proof chamber 122. In this way, by defining the communication chamber 121 and the moisture-proof chamber 122 in the liquid level detection chamber 12, on one hand, the cleaning liquid entering the liquid level detection chamber 12 can be limited in the communication chamber 121, so as to prevent the cleaning liquid from contacting the air pressure sensing part 31 and causing short circuit failure thereof; on the other hand, it is also useful to prevent the washing liquid from contacting/wetting the air pressure sensor 31 during the switching of the dispenser 100 between the upright position and the horizontal position.

Further, in the horizontal state, the second communication hole 1232 is positioned above the second separator 123.

Specifically, the second communication hole 1232 is provided near the launch-side box wall 162 so that: in the horizontal state, the second communication hole 1232 is positioned above the second separator 123.

Thus, when the dispenser 100 is switched to the horizontal state, the second communication hole 1232 is still not submerged by the cleaning liquid in the communication chamber 121, so that the cleaning liquid in the communication hole 2171 is prevented from entering the humidity-proof chamber 122 and from contacting/wetting the air pressure sensing part 31.

Further, in the upright state, the moisture-proof chamber 122 is located above the communication chamber 121. Thus, it is convenient to prevent the washing liquid in the communication chamber 121 from flowing into the humidity prevention chamber 122 to prevent the washing liquid from contacting/wetting the air pressure sensing part 31.

Specifically, the second partition 123 is transversely disposed on the upper portion of the liquid level detection chamber 12 to divide the liquid level detection chamber 12 into a moisture-proof chamber 122 located on the upper portion and a communication chamber 121 located on the lower portion of the moisture-proof chamber 122.

Further, as shown in fig. 10, the second partition 123 has a flow guide section 1231 extending toward the second communication hole 1232, and in the upright state, the flow guide section 1231 extends obliquely downward. Thus, if the washing liquid in the communication cavity 121 flows into the moisture-proof cavity 122 by mistake, the flow guiding section 1231 can guide the washing liquid to flow back into the communication cavity 121.

Further, the moisture-proof chamber 122 has an installation chamber wall 1221 opposite to the second partition 123, the air pressure sensing part 31 is disposed on the installation chamber wall 1221, and in a horizontal state, the air pressure sensing part 31 is located on the upper portion of the installation chamber wall 1221. Specifically, the air pressure sensing portion 31 is disposed near the launch side box wall 162, so that: in the horizontal state, the air pressure sensing part 31 is located above the installation cavity wall 1221.

Thus, the washing liquid can be further prevented from contacting/wetting the air pressure sensing part 31.

Specifically, as shown in fig. 6, 9 and 10, a sensor mounting hole 124 penetrating through the wall of the liquid storage box 10 is formed in the mounting cavity wall 1221, the air pressure detecting sensor 30 is mounted in the sensor mounting hole 124 and seals the sensor mounting hole 124, and the air pressure sensing portion 31 extends into the moisture-proof cavity 122 through the sensor mounting hole 124.

Specifically, as shown in fig. 6, 9 and 10, the air pressure sensing part 31 is covered with a protective cover 125, and the protective cover 125 is provided with a vent 1251 to further prevent the washing liquid from contacting/wetting the air pressure sensing part 31.

Optionally, the shield 125 is integral with the walls of the reservoir 10.

Further, as shown in fig. 6, 7, 15 and 16, the air pressure detecting sensor 30 further includes a protective casing 33 and a detecting circuit board 32, the air pressure sensing portion 31 is disposed on the detecting circuit board 32, the detecting circuit board 32 is fixedly mounted outside the liquid storage box 10, and the protective casing 33 is detachably covered on the detecting circuit board 32. Thus, the air pressure detection sensor 30 can be detected by detaching the protective case 33.

Specifically, as shown in fig. 9 and 10, a screw hole column 191 is disposed on an outer surface of the liquid storage box 10, and the detection circuit board 32 is mounted on the screw hole column 191.

Specifically, as shown in fig. 9 and 10, a supporting protrusion 192 is further protruded on the outer surface of the liquid storage box 10, a limiting slot 1921 is provided on the supporting protrusion 192, and the first side edge of the detection circuit board 32 is clamped in the limiting slot 1921.

Specifically, as shown in fig. 9 and 10, a limiting reverse buckle 193 is further convexly disposed on the outer surface of the liquid storage box 10, and the limiting reverse buckle 193 is clamped to the second side edge of the detection circuit board 32.

Optionally, the first side edge and the second side edge of the detection circuit board 32 are disposed opposite to each other.

Specifically, the protective housing 33 includes a protective bottom plate 331, and a first protective side plate 332 and a second protective side plate which are disposed on opposite sides of the protective bottom plate 331, and inner side surfaces of the first protective side plate 332 and the second protective side plate are provided with a clamping protrusion 336.

Specifically, the protective housing 33 further includes a third protective side plate 334 and a fourth protective side plate disposed on the other two sides of the protective bottom plate 331, and the third protective side plate 334 and the fourth protective side plate are both provided with an avoidance opening 337.

Further, as shown in fig. 6, 9 and 10, a communication passage (not shown) communicating the first communication hole 13 and the second communication hole 1232 is formed in the communication chamber 121, and the communication passage has at least one detour portion. In this way, by forming the communication passage having at least one detour portion to communicate the first communication hole 13 and the second communication hole 1232, the detergent in the communication chamber 121 can be further prevented from flowing into the humidity preventing chamber 122.

Specifically, as shown in fig. 6, 9 and 10, the communicating channel includes a plurality of communicating sub-chambers which are sequentially communicated, and any two adjacent communicating sub-chambers are communicated through a communicating structure; any two adjacent communication structures are disposed in a staggered manner in a direction from the first communication hole 13 toward the second communication hole 1232, so that the communication passage has at least one detour portion.

Specifically, as shown in fig. 6, 9 and 10, a plurality of (i.e., two or more) communication partitions 1211 are disposed in the communication cavity 121, the plurality of communication partitions 1211 define a plurality of communication sub-cavities in the communication cavity 121, and the communication structure is disposed on the communication partitions 1211.

Alternatively, the communication barrier 1211 has a flow-inducing section extending toward the second communication hole 1232, the flow-inducing section extending obliquely downward.

Specifically, the communication passage is of a labyrinth structure.

Further, the dispensing device 100 further comprises a liquid level alarm device, and the liquid level alarm device is configured to give an alarm when the detection value of the air pressure detection sensor 30 is lower than a minimum preset value.

Specifically, the liquid level alarm device comprises an alarm lamp and/or a buzzer, so that the alarm mode comprises emitting alarm light (such as flashing light or long-bright light) and/or emitting buzzer sound.

Further, as shown in fig. 1 to 17, the dispensing device 100 further comprises a liquid pumping device 40, wherein the liquid pumping device 40 is mounted on the liquid storage box 10 for discharging the washing liquid in the liquid storage cavity 11 for being dispensed into the washing cavity of the dishwasher.

Specifically, the liquid pumping device 40 is a liquid pumping pump for pumping out the cleaning liquid in the liquid storage cavity 11; wherein, the liquid pump is a constant delivery pump. Therefore, quantitative washing liquid can be automatically pumped out from the liquid storage cavity 11 in a row-pumping mode so as to throw quantitative washing liquid into a washing cavity of the dish washing machine, and automatic quantitative throwing of the washing liquid can be realized.

Of course, in other embodiments, the fluid-pumping device 40 can be a manual pumping device, and need not be described in detail herein.

Specifically, as shown in fig. 7, the liquid pumping device 40 has a liquid pumping port 41 and a liquid outlet 42.

Further, as shown in fig. 1-17, the liquid pumping device 40 is disposed outside the liquid storage box 10. So, on the one hand can be convenient for increase the volume of stock solution chamber 11, on the other hand can simplify the structural design in the stock solution box 10 to in making stock solution box 10, on the other hand can also increase the installation space of drawing liquid device 40, so that install drawing liquid device 40 again.

Of course, in other embodiments, the liquid pumping device 40 may be disposed in the liquid storage box 10.

Further, as shown in fig. 5, 6, and 9-11, a liquid discharge flow channel 17 is further provided in the liquid storage box 10, a liquid discharge port 113 communicating with one end of the liquid discharge flow channel 17 and a liquid feeding port 114 communicating with the other end of the liquid discharge flow channel 17 are provided on the liquid storage box 10, the liquid discharge flow channel 17 includes a terminal liquid discharge section 171 communicating with the liquid feeding port 114, and the terminal liquid discharge section 171 extends downward from the liquid feeding port 114; the liquid pumping port 41 of the liquid pumping device 40 is communicated with the liquid storage cavity 11, the liquid outlet 42 of the liquid pumping device 40 is communicated with the liquid outlet 113, and the liquid pumping device 40 is used for discharging the liquid in the liquid storage cavity 11 from the liquid feeding port 114.

The meaning of the terminal liquid discharge section 171 extending downward from the liquid feeding port 114 includes both downward extending along the vertical line (i.e., straight downward extending) and downward extending (i.e., oblique downward extending). That is, the terminal liquid discharge section 171 extends in the up-down direction.

Specifically, the liquid extracting port 41 of the liquid extracting device 40 is communicated with the liquid storage cavity 11, so that the liquid extracting device 40 can extract the washing liquid in the liquid storage cavity 11; meanwhile, the liquid outlet 42 of the liquid extracting device 40 is communicated with the liquid outlet 113, so that the washing liquid extracted by the liquid extracting device 40 is discharged into the liquid discharging flow passage 17 and is sent out from the liquid sending port 114 of the liquid discharging flow passage 17.

Specifically, after the liquid is drained by the liquid drainage device 40, most of the cleaning liquid near the liquid feeding port 114 is deposited at the terminal liquid drainage section 171 under the action of gravity, so that the cleaning liquid in the liquid drainage flow channel 17 can be prevented from automatically flowing out from the liquid feeding port 114, the liquid level area of the liquid drainage flow channel 17 interacting with air can be reduced, the evaporation of water in the cleaning liquid in the liquid drainage flow channel 17 can be reduced, and the probability of scab deposition of the cleaning liquid in the liquid drainage flow channel 17 can be reduced.

According to the feeding device 100, the tail end of the liquid drainage flow channel 17 is provided with the tail end liquid drainage section 171 which is communicated with the liquid feeding port 114 and extends along the vertical direction, so that the washing liquid in the liquid drainage flow channel 17 can be prevented from automatically flowing out from the liquid feeding port 114 after liquid drainage is finished, the liquid level area of the liquid drainage flow channel 17 interacting with air can be reduced, the evaporation of water in the washing liquid in the liquid drainage flow channel 17 can be reduced, and the probability of scab deposition of the washing liquid in the liquid drainage flow channel 17 can be reduced. Therefore, the scabbing of the washing liquid in the liquid discharge flow channel 17 of the feeding device 100 can be effectively avoided.

Further, as shown in fig. 5, 6, and 9-11, the liquid discharge port 113 is higher than the liquid feeding port 114, or the liquid discharge port 113 and the liquid feeding port 114 are at the same height, or the liquid discharge port 113 is slightly lower than the liquid feeding port 114. Therefore, the liquid drainage flow channel 17 has a longer flow channel length, so that a larger amount of the cleaning solution can be stored in the liquid drainage flow channel 17, and the probability of scab deposition of the cleaning solution in the liquid drainage flow channel 17 is further reduced.

In this embodiment, the liquid discharge port 113 is slightly higher than the liquid supply port 114.

Further, as shown in fig. 5, 6, and 9-11, the liquid discharge flow path 17 further includes a lateral liquid discharge section 172 communicating with the terminal liquid discharge section 171 and extending in a direction close to the liquid discharge port 113, and a start liquid discharge section 173 communicating the lateral liquid discharge section 172 with the liquid discharge port 113; the initial discharge section 173 extends at least partially obliquely downwards in the direction of the discharge opening 113 in the transverse discharge section 172. Thus, the liquid discharge flow path 17 can be (substantially) provided in a U-shape, and the liquid discharge flow path 17 can have a long flow path length.

Specifically, the initial liquid discharge section 173 includes a curved connection section and a lateral transition section, the lateral transition section is communicated with the liquid discharge port 113, the curved connection section connects the lateral liquid discharge section 172 with the lateral transition section, and the curved connection section extends in a downward curved manner in a direction from the liquid discharge port 113 to the lateral liquid discharge section 172. Thus, by arranging the transverse transition section, the washing liquid can smoothly enter the liquid drainage flow channel 17; by providing a curved connecting section, the length of the flow path of the drainage flow path 17 can be increased.

It is understood that the liquid discharge flow path 17 may be configured in other structures, such as a transverse transition section, an oblique downward connecting section, a transverse liquid discharge section 172 and a terminal liquid discharge section 171 extending in the up-down direction, which are sequentially connected from the liquid discharge port 113 to the liquid feeding port 114; in another example, the liquid discharge channel 17 may include a transverse transition section, a long inclined downward bending section, and a terminal liquid discharge section 171 extending in the up-down direction, which are sequentially connected from the liquid discharge port 113 to the liquid feed port 114 (i.e., the liquid discharge channel 17 is substantially V-shaped); further, if the liquid discharge port 113 is lower than the liquid feed port 114, the liquid discharge flow path 17 includes a lateral liquid discharge section 172 and a terminal liquid discharge section 171 extending in the vertical direction, which are connected in this order from the liquid discharge port 113 to the liquid feed port 114; and so on.

Further, as shown in fig. 5, 6, and 9-11, a first flow channel partition wall 118 and a second flow channel partition wall 119 are formed in the liquid storage box 10 by injection molding, and the liquid discharge flow channel 17 is defined between the first flow channel partition wall 118 and the second flow channel partition wall 119. Thus, the number of assembling steps is reduced, and the sealing performance of the liquid discharge flow path 17 is improved.

Specifically, both side edges of the first flow path partition wall 118 are connected to the launch-side box wall 162 and the back-side box wall 164, respectively, and both side edges of the second flow path partition wall 119 are connected to the launch-side box wall 162 and the back-side box wall 164, respectively; one end of the first flow path partition 118 is connected to the pump side case wall 161, and one end of the second flow path partition 119 is also connected to the pump side case wall 161 and is located on both sides of the liquid discharge port 113; the other end of the first flow path partition wall 118 is connected to the other end of the second flow path partition wall 119 by an arc segment to form a terminal liquid discharge column communicating with the liquid feeding port 114.

The first flow channel partition wall 118 is located above the second flow channel partition wall 119.

Further, as shown in fig. 5, 6, and 9-11, a liquid-extracting flow channel 18 is further disposed in the liquid storage box 10, an outer material-extracting opening 115 communicated with one end of the liquid-extracting flow channel 18 is further disposed on the liquid storage box 10, and an inner material-extracting opening 116 communicated with the liquid storage cavity 11 is formed at the other end of the liquid-extracting flow channel 18. The liquid pumping port 41 of the liquid pumping device 40 is communicated with the outer pumping port 115, so that the liquid pumping port 41 of the liquid pumping device 40 is communicated with the liquid storage cavity 11, and the washing liquid in the liquid storage cavity 11 is pumped out. Thus, the cleaning solution in the reservoir chamber 11 can be easily drawn out by providing the liquid drawing flow path 18 in the reservoir case 10.

Further, as shown in fig. 5, 6 and 9-11, in the upright state, the inner pumping port 116 is located at the bottom of the liquid storage cavity 11. Thus, the washing liquid collected to the bottom of the liquid storage chamber 11 can be smoothly pumped out through the inner pumping hole 116, so as to ensure the full utilization of the washing liquid.

Specifically, the inner material pumping port 116 is disposed near the bottom case wall 151, so that the inner material pumping port 116 is located at the bottom of the liquid storage cavity 11.

Further, the inner pumping port 116 is disposed near the lowest portion of the bottom case wall 151. Specifically, the lowest position of the bottom box wall 151 is arranged in the middle of the liquid storage cavity 11.

Further, as shown in FIGS. 5, 6, and 9-11, the pumping channel 18 has at least one curved channel 1821. In this way, by providing the fluid extraction flow channel 18 with at least one curved flow channel 1821, the tension of the cleaning fluid can be utilized, so that even if the inner material extraction opening 116 is exposed, the amount of the cleaning fluid flowing out of the fluid extraction flow channel 18 can be reduced, thereby reducing the amount of air entering, and even avoiding air entering.

Further, in the horizontal state, the inner material pumping port 116 is also located at the bottom of the liquid storage cavity 11. In particular, the internal suction port is disposed proximate to the backside cartridge wall 164 such that: in the horizontal state, the inner material pumping port 116 is also positioned at the bottom of the liquid storage cavity 11.

Thus, when the feeding device 100 moves to the horizontal state, the inner pumping port 116 is also located at the bottom of the liquid storage cavity 11, so that the cleaning liquid still can submerge the inner pumping port 116, the inner pumping port 116 can be prevented from being exposed, the cleaning liquid in the liquid pumping flow channel 18 can be prevented from flowing out, air can be prevented from entering, and the liquid pumping device 40 can be prevented from pumping air to reduce the amount of the discharged cleaning liquid. In short, in the horizontal state, air is prevented from entering the liquid-extracting flow passage 18.

Further, as shown in fig. 5, 6, and 9-11, a flow channel partition 189 is further disposed in the liquid storage box 10, and the flow channel partition 189 separates the liquid pumping flow channel 18 from the box wall of the liquid storage box 10. Thus, the liquid drawing channel 18 is formed by the box wall of the liquid storage box 10, so that the structural design in the liquid storage box 10 can be simplified, and the cost can be saved.

Specifically, the flow channel partition 189 and the case wall of the liquid storage case 10 are integrally molded. Thus, the sealing performance can be improved conveniently.

Specifically, two side edges of the flow passage partition 189 are respectively connected to the casting-side box wall 162 and the back-side box wall 164.

Specifically, one end (i.e., the upper end) of the flow passage partition 189 is connected to the second flow passage partition 119, and the other end (i.e., the lower end) of the flow passage partition 189 is used to form the inner pumping port 116.

Further, as shown in fig. 5, 6, and 9-11, the liquid pumping channel 18 includes a horizontal liquid pumping section 181 and a vertical liquid pumping section 182 communicating with the horizontal liquid pumping section 181, in the vertical state, the horizontal liquid pumping section 181 is located at the bottom of the liquid storage box 10, and the vertical liquid pumping section 182 is located at the side of the liquid storage box 10; the inner pumping port 116 is arranged at one end of the transverse pumping section 181 far away from the vertical pumping section 182, and the outer pumping port 115 is communicated with the vertical pumping section 182. Specifically, in the vertical state, the horizontal pumping section 181 extends in the horizontal direction, and the vertical pumping section 182 extends in the vertical direction.

In this way, by making the liquid withdrawal flow path 18 include the transverse liquid withdrawal section 181, it is on the one hand convenient to flexibly design the position of the inner liquid withdrawal port 41, such as to be disposed close to the lowest portion of the bottom case wall 151; on the other hand, the difficulty of the washing liquid flowing back from the liquid-extracting flow passage 18 can be increased to further prevent air from entering the liquid-extracting flow passage 18.

Specifically, in the upright state, the bottom case wall 151 is located at the bottom of the reservoir 10, and the pump side case wall 161 is located at a side of the reservoir 10.

Further, as shown in fig. 5, 6, and 9-11, the flow path divider 189 includes a laterally extending portion 1891 disposed corresponding to the bottom case wall 151, the laterally extending portion 1891 being spaced apart from the bottom case wall 151 to form a laterally extending portion 181 between the laterally extending portion 1891 and the bottom case wall 151; an inner pumping port 116 is formed between an end of the transversely extending section 1891 remote from the pump side box wall 161 and the bottom box wall 151. Thus, the structure can be simplified.

Specifically, the laterally extending section 1891 extends substantially in the horizontal direction.

Further, as shown in fig. 5, 6, and 9 to 11, an end of the laterally extending portion 1891, which is away from the pump side case wall 161, is provided with a flow restriction rib 1893 extending in a direction close to the bottom case wall 151, and the inner suction port 116 is formed between the flow restriction rib 1893 and the bottom case wall 151. In this way, the transverse pumping section 181 can have a larger flow passage cross section, and the inner pumping port 116 can be reduced to further prevent air from entering the pumping flow passage 18.

Specifically, a first side edge of the casting side box wall 162 is connected to the bottom box wall 151, and a second side edge of the casting side box wall 162 is connected to the pump side box wall 161; in the upright state, the first side edge of the launch side box wall 162 is the lower side edge of the launch side box wall 162.

Further, as shown in fig. 5, 6, and 9-11, a flow passage step 188 is formed at the connection position of the feeding side box wall 162 and the bottom box wall 151, the lateral extension 1891 is disposed on the flow passage step 188, and the lateral flow passage section is disposed between the flow passage step 188, the bottom box wall 151, and the lateral extension 1891, so that the inner pumping port 116 is disposed away from the feeding side box wall 162, so that the inner pumping port 116 is located at the bottom of the liquid storage cavity 11 when the feeding device 100 is in the horizontal state.

Thus, the widths of the transverse liquid pumping section 181 and the inner material pumping port 116 in the thickness direction of the liquid storage cavity 11 can be reduced, and the inner material pumping port 116 is located at the bottom of the liquid storage cavity 11 when the feeding device 100 is in a horizontal state, so as to prevent air from entering the liquid pumping flow channel 18 in the horizontal state.

In the present embodiment, the thickness of the reservoir 11 is the distance between the dispensing-side box wall 162 and the back-side box wall 164.

Specifically, the flow passage step 188 is connected to the liquid guiding step 111 at the inner pumping port 116. This also facilitates the formation of the reservoir 10.

Specifically, the flow-limiting blocking rib 1893 is used for forming a side wall of the diversion trench, and the inner pumping port 116 is communicated with the diversion trench.

Further, as shown in fig. 5, 6, and 9 to 11, the flow channel partition 189 further includes a vertical extension 1892 connected to the horizontal extension 1891, the vertical extension 1892 being disposed corresponding to the pump side case wall 161 and being spaced apart from the pump side case wall 161 to form a vertical pumping section 182 between the vertical extension 1892 and the pump side case wall 161; the outer pumping port 115 is disposed on the pump side case wall 161 and is communicated with the vertical pumping section 182. Specifically, the upper end of the vertically extending section 1892 is connected to the second flow passage partition wall 119. In this manner, the vertical pumping section 182 may be formed.

Further, as shown in FIGS. 5, 6, and 9-11, the vertical pumping section 182 has at least one curved flow path 1821 and/or the lateral pumping section 181 has at least one curved flow path 1821, such that the pumping flow path 18 has at least one curved flow path 1821.

In this embodiment, the vertical pumping segment 182 has a curved flow path 1821.

Specifically, as shown in fig. 5, 6, and 9-11, a lower portion of the pump side case wall 161 is protruded outward to form a protrusion 1611, and the vertical extension 1892 includes a bent portion corresponding to the protrusion 1611, and a bent flow passage 1821 is formed between the bent portion and the protrusion 1611.

Specifically, a first mounting arm 1612 is arranged on the convex portion 1611 in a protruding manner, a second mounting arm 1613 located above the first mounting arm 1612 is further arranged on the pump side box wall 161 in a protruding manner, one side of the liquid pumping device 40 is mounted on the first mounting arm 1612, and the other side of the liquid pumping device is mounted on the second mounting arm 1613.

Of course, in other embodiments, the fluid-extracting passage 18 may be formed in other manners, such as by two oppositely disposed passage partitions 189 that may define the fluid-extracting passage 18; if the liquid storage box 10 is provided with a liquid inlet, a liquid outlet and a liquid outlet, a shell cover with an opening at one side and an arc-shaped cross section can be arranged to form a liquid pumping flow channel 18 with the box wall of the liquid storage box 10 in an enclosing manner; and so on.

Specifically, the liquid storage box 10 comprises a first box body 10a and a second box body 10b, and the first box body 10a and the second box body 10b are assembled to form the liquid storage box 10. The liquid inlet 117 and the liquid outlet 114 are provided in the first container 10 a.

Further, as shown in fig. 1, 2, 4, 5 and 8, the liquid storage box 10 is further provided with a liquid injection port 117 communicating with the liquid storage chamber 11. Thus, the cleaning liquid can be added into the reservoir 11 through the liquid inlet 117.

Specifically, the liquid inlet 117 is provided in the pouring side case wall 162. In this way, when it is necessary to add the cleaning liquid into the liquid storage chamber 11, the dispenser 100 can be switched to the horizontal state so that the liquid inlet 117 is directed upward for easy liquid injection.

Of course, in other embodiments, the pouring outlet 117 may be disposed at other positions, such as the top case wall 152, or the upper portion of the pump-side case wall 161.

Further, as shown in fig. 1 to 17, the dispensing device 100 further comprises a dispensing head 20, the dispensing head 20 comprises a base 21 and a cover 22, the base 21 is mounted on the liquid storage box 10 and covers the liquid injection port 117; a washing groove 211 is arranged on the base 21, and an exposing port 212 exposing the liquid injection port 117 is arranged at the bottom of the washing groove 211; the lid 22 covers the opening of the washing tank 211 and seals the exposed opening 212 to seal the pouring outlet 117.

Specifically, the base 21 is hermetically connected to the liquid storage box 10 to prevent the washing water in the dishwasher from flowing into the liquid filling port 117 and into the liquid storage chamber 11 from the connection between the base 21 and the liquid storage box 10.

Specifically, the dispensing head 20 is mounted on the dispensing side box wall 162.

Specifically, when the washing liquid needs to be added into the liquid storage cavity 11, the feeding device 100 can be switched to a horizontal state, so that the feeding side box wall 162 is arranged upward; then, the lid 22 is opened to open the exposure port 212 to expose the liquid injection port 117, so that the liquid storage chamber 11 can be filled with the cleaning liquid through the liquid injection port 117; after filling, the cover 22 is replaced to reseal the opening 212.

Further, the cover 22 also closes the notch of the flushing groove 211. Thus, the washing water is prevented from entering the washing tank 211 from the notch (more impulsive) of the washing tank 211, so as to avoid the washing water from entering the reservoir 11.

Specifically, the cover 22 closes the notch of the flushing groove 211, seals the exposure opening 212, and forms the flushing cavities 213 distributed in a ring shape on the peripheral side of the exposure opening 212. It is understood that the rinsing cavity 213 is formed between the side wall of the rinsing cavity 213 and the sealing structure of the cover 22 and the exposure opening 212.

As shown in fig. 5, the dispensing head 20 is provided with a plurality of flushing ports communicated with the flushing cavity 213, the flushing ports are used for allowing the washing water of the dishwasher to flow into or out of the flushing cavity 213, and at least one flushing port is provided at the lower part of the dispensing head 20.

It will be appreciated that when the cleaning solution is filled into the reservoir 11, the cleaning solution may spill onto the walls of the rinsing tank 211, i.e., the walls of the rinsing chamber 213, and thus be wasted. Furthermore, by providing the flushing chamber 213, the cleaning liquid can be prevented from spilling to other positions of the dispensing device 100.

Thus, when the cleaning solution is filled into the reservoir 11 through the liquid inlet 117, the cleaning solution may be scattered into the wash chamber 213; however, when the dishwasher is in operation, the washing water flow can enter the washing cavity 213 from the washing opening and then flow out from the washing opening located at the lower part of the dispensing head 20, so that the washing liquid scattered in the washing cavity 213 can be flushed out, and the scattered washing liquid can also be utilized.

Wherein, the flushing port located at the lower part of the dispensing head 20 is a lower flushing port 215.

Further, as shown in fig. 5, at least one of the flushing ports is provided at an upper portion of the dispensing head 20. Wherein, the flushing port positioned at the upper part of the throwing head 20 is an upper flushing port 214.

Thus, the washing water entering the washing chamber 213 through the upper washing port 214 can be washed downward from above the wall of the washing chamber by gravity, so that the washing chamber 213 can be washed more cleanly.

Specifically, the number of the upper flushing ports 214 is one, and the upper flushing ports 214 are strip-shaped holes. In this way, the amount of washing water entering the washing chamber 213 from above the washing chamber can be increased, and thus the washing effect can be enhanced. Of course, in other embodiments, the amount of the washing water entering the washing chamber 213 from above the washing chamber may be increased in other manners, for example, the number of the upper washing ports 214 may be set to be plural, and the plural washing ports are sequentially arranged at intervals at the upper part of the dispensing head 20; and so on.

Further, as shown in fig. 1, 2, 4, 5, 8 and 12, the cover 22 is rotatably installed at the notch of the rinsing bath 211. As such, the notch of the rinsing bath 211 may be opened or closed by rotating the cover 22, and at the same time, the exposure opening 212 may be opened or closed. Of course, in other embodiments, the cover 22 may be disposed in other manners, such as by detachably mounting the cover 22 to the notch of the flushing tank 211, by slidably mounting the cover 22 to the notch of the flushing tank 211, and so on.

Specifically, a mounting gap is formed at the rotatable connection position of the cover 22 and the base 21, and the mounting gap defines a flushing port.

Specifically, the rotatable connection between the cover 22 and the base 21 is located at the upper portion of the dispensing head 20, and the washing opening defined by the installation gap is an upper washing opening 214. Of course, the rotatable connection between the cover 22 and the base 21 can be located at other parts of the dispensing head 20, such as the side or lower part.

Specifically, as shown in fig. 5, 13 and 14, the base 21 is further provided with a mounting groove 216 communicated with the flushing tank 211, the mounting groove 216 includes two mounting side walls 2161 oppositely arranged and a connecting bottom wall 2162 connecting the two mounting side walls 2161, and two ends of the first side edge of the cover plate are rotatably connected with the two mounting side walls 2161 respectively.

Optionally, a first rotating shaft portion 2163 is disposed on one of the mounting side walls 2161, a first rotating hole 221 is disposed at one end of the first side edge of the cover plate corresponding to the first rotating shaft portion 2163, and the first rotating shaft portion 2163 is rotatably mounted in the first rotating hole 221; a second rotating hole is formed in the other mounting side wall 2161, a second rotating shaft portion 222 is arranged at the other end of the first side edge of the cover plate corresponding to the second rotating hole, and the second rotating shaft portion 222 is rotatably mounted in the second rotating hole; so that the cover body 22 can be rotatably installed at the notch of the wash tank 211.

Wherein, the first flushing port is formed between the first side edge of the cover plate and the connecting bottom wall 2162.

Specifically, a flushing gap is formed between the first rotating shaft hole 221 and the second rotating shaft portion 222, and the flushing gap is used for forming the upper flushing port 214.

Specifically, a rotating shaft mounting portion 225 is formed at one end of a first side edge of the cover plate, and the first rotating hole 221 is formed in the rotating shaft mounting portion 225.

Specifically, the first shaft portion 2163 may be integrally provided with the base 21 or may be separately connected to the base 21. When the first spindle part 2163 is separately connected with the base 21, a spindle mounting hole is formed in the mounting sidewall 2161, and the first spindle part 2163 is mounted in the spindle mounting hole; optionally, an external thread is disposed at one end of the first spindle portion 2163, and the spindle mounting hole is a threaded hole to connect the first spindle portion 2163 and the base 21 through a threaded connection structure.

Specifically, the second rotating shaft portion 222 may be provided integrally with the cover 22, or may be provided separately from the cover 22.

In this embodiment, the first shaft portion 2163 is connected to the base 21 separately, and the second shaft portion 222 is provided integrally with the cover 22.

Specifically, the cover 22 is also fastened or engaged with the base 21 to close the opening of the rinsing groove 211. Optionally, the fastening connection structure or the suction connection structure of the cover 22 and the base 21 is disposed opposite to the rotatable connection position of the cover 22 and the base 21.

Further, as shown in fig. 1 to 17, the periphery of the exposure opening 212 is provided with a sealing ring protrusion 217, and the cover body 22 abuts against the sealing ring protrusion 217 to seal the exposure opening 212. Wherein the flushing cavity 213 is arranged between the sealing ring protrusion 217 and the side wall of the flushing groove 211. As such, by providing the sealing ring protrusion 217 at the periphery of the exposure opening 212, it is possible to facilitate the cooperation with the cover body 22 to seal the exposure opening 212.

Further, as shown in fig. 13 and 17, the sealing ring protrusion 217 is provided with a communication hole 2171 for communicating the liquid filling port 117 with the external environment; alternatively, a communication hole 2171 is formed between the seal ring protrusion 217 and the lid body 22 to communicate the liquid inlet 117 with the external environment. Specifically, the communication hole 2171 communicates the exposure port 212 with the external environment, thereby communicating the liquid injection port 117 with the external environment. It is understood that the communication hole 2171 may communicate with the external environment through the rinsing chamber 213 and the rinsing port when the cover 22 closes the notch of the rinsing groove 211.

In this manner, by providing the communication hole 2171 to communicate the liquid injection port 117 with the external environment, the liquid storage chamber 11 can be communicated with the external environment, so that when the cleaning liquid in the liquid storage chamber 11 is pumped out, air in the external environment can enter the liquid storage chamber through the communication hole 2171 to make the air pressure in the liquid storage chamber 11 the same as the external atmospheric pressure, thereby enabling the cleaning liquid in the liquid storage chamber 11 to be smoothly pumped out.

In this embodiment, the sealing ring protrusion 217 is provided with a ventilation notch, and the ventilation notch and the cover 22 enclose to form a communication hole 2171. Of course, the communication hole 2171 may be formed between the sealing ring protrusion 217 and the cover 22 by other means, for example, if the inner surface of the cover 22 is provided with a ventilation groove, the sealing ring protrusion 217 abuts against the ventilation groove, and a first air port is formed between the inner side of the sealing ring protrusion 217 and the notch of the ventilation groove, and a second air port is formed between the outer side of the sealing ring protrusion 217 and the notch of the ventilation groove; and so on.

Further, as shown in fig. 13, the communication hole 2171 is provided at a lower portion of the seal ring protrusion 217. Since the washing water introduced into the washing chamber 213 moves downward by gravity, the washing water introduced into the washing chamber 213 is prevented from being introduced into the communication hole 2171 by providing the communication hole 2171 at the lower portion of the sealing ring protrusion 217.

Further, as shown in fig. 17, a sealing ring groove 224 is formed on an inner side surface of the cover body 22, the sealing ring protrusion 217 is disposed in the sealing ring groove 224, and a bottom of the sealing ring groove 224 abuts against the sealing ring protrusion 217 to seal the exposed opening 212. Thus, the washing water entering the washing chamber 213 can be advantageously prevented from moving to the abutting portion of the sealing ring protrusion 217 and the cover 22, which is advantageous for improving the sealing performance.

Specifically, as shown in fig. 7, the dispensing device 100 further includes an annular sealing element 23, and the annular sealing element 23 is disposed in the sealing ring groove 224 and between the sealing ring protrusion 217 and the cover 22 (i.e., the bottom of the sealing ring groove 224) to improve the sealing performance. Optionally, the annular seal 23 is an o-ring or a flexible gasket or the like.

Further, as shown in fig. 17, two annular protrusions 223 are protruded from the inner side surface of the cover 22, and a sealing ring groove 224 is formed between the two annular protrusions 223. Thus, the structure of the seal ring groove 224 can be simplified.

Further, the communication hole 2171 is located in the seal ring groove 224. Thus, the washing water introduced into the washing chamber 213 is prevented from entering the communication hole 2171.

Specifically, a ventilation gap communicating with the communication hole 2171 is provided between the annular stopper projection 223 and the seal ring projection 217 to allow gas to flow therethrough.

Further, referring to fig. 1, the communication hole 2171 is provided apart from the pouring port 117. Thus, even if a small amount of wash water introduced into the wash chamber 213 enters the exposing port 212 through the communication hole 2171, the wash water is prevented from entering the reservoir 11 through the liquid inlet 117.

In this embodiment, the liquid inlet 117 is provided near the upper portion of the washing groove 211, and the communication hole 2171 is provided near the lower portion of the washing groove 211 so that the communication hole 2171 is provided away from the liquid inlet 117.

Of course, in other embodiments, other sealing structures may be used to seal the exposing opening 212 with the cover 22, for example, the sealing ring protrusion 217 may be disposed on the inner side surface of the cover 22 and abut against the periphery of the exposing opening 212; if a sealing ring is disposed between the cover 22 and the bottom of the rinsing cavity 213, the sealing ring is disposed outside the exposing opening 212, and two ends of the sealing ring respectively abut against the bottom of the cover 22 and the bottom of the rinsing cavity 213; etc., which need not be described in detail herein.

Further, as shown in fig. 5, the base 21 is provided with an injection passage 218, one end of the injection passage 218 is communicated with the liquid feeding port 114, and the other end thereof forms an injection port 2194. Thus, the washing liquid discharged from the liquid feeding port 114 can be introduced into the washing chamber of the dishwasher through the introduction flow path 218 and the introduction port 2194 thereof.

Specifically, the base 21 is provided with a flow path pipe part 219 for forming the feeding flow path 218, and one end of the flow path pipe part 219 is inserted into the liquid feeding port 114, so that one end of the feeding flow path 218 is communicated with the liquid feeding port 114.

Specifically, as shown in fig. 12 and 13, the base 21 includes a seat body 21a disposed in a ring shape and a middle partition 21b disposed in the middle of the seat body 21a, a washing groove 211 is formed on one side of the middle partition 21b away from the liquid storage box 10, wherein the middle partition 21b is used for forming the bottom of the washing groove 211, that is, the exposure port 212 is disposed on the middle partition 21 b.

As shown in fig. 12 to 14, the flow pipe part 219 includes a throwing portion 2191 formed in the seat body 21a, a throwing extension portion 2192 connected to the throwing portion 2191 and extending in a direction away from the seat body 21a, and a throwing insert portion 2193 connected to the throwing extension portion 2192 and extending in a direction toward the reservoir 10, the throwing extension portion 2192 is provided inside the seat body 21a, the throwing insert portion 2193 is inserted into the liquid supply port 114, and the throwing portion 2191 is formed with a throwing port 2194.

Specifically, as shown in fig. 1, 4, 5, 7, etc., the seat 21a is hermetically mounted on the outer surface of the liquid storage box 10. Specifically, the seat body 21a is mounted on the launch side box wall 162. Optionally, the dispensing device 100 further includes a first sealing ring 71, and the first sealing ring 71 is disposed between the dispensing side box wall 162 and the seat body 21a to improve the sealing performance.

Specifically, as shown in fig. 8, an annular sealing groove 1625 is disposed on an outer surface of the launch side box wall 162, and the first sealing ring 71 includes an annular sealing portion disposed in the annular sealing groove 1625, so as to facilitate positioning and improve sealing performance.

Further, the injection port 2194 is provided at a lower portion of the injection head 20. Therefore, the washing liquid can be conveniently put into the washing cavity.

Further, as shown in fig. 1, 5, 13 and 14, at least one lower flushing port 215 is respectively disposed on both sides of the input port 2194. It is understood that when the input port 2194 inputs the washing liquid, the washing liquid may be splashed to the vicinity of the input port 2194, and the lower flushing port 215 is provided on the side of the input port 2194, thereby facilitating flushing of the splashed washing liquid; further, the plurality of lower flushing ports 215 are provided on both sides of the input port 2194, respectively, so that the flushing effect can be improved.

Further, as shown in fig. 7 and 8, etc., a liquid injection groove 1623 is provided on the liquid storage box 10, and the liquid injection port 117 is provided at the bottom of the liquid injection groove 1623. Specifically, the liquid injection groove 1623 is disposed on the outer surface of the casting side box wall 162.

Thus, during liquid injection, the washing liquid can be injected into the liquid injection groove 1623 and then flows into the liquid storage cavity 11 through the liquid injection port 117, so that the liquid injection difficulty can be reduced.

Further, as shown in fig. 8, a protruding post 1622 is disposed on the liquid storage box 10, the protruding post 1622 is disposed corresponding to the exposing port 212, and the liquid injection groove 1623 is disposed on an end surface of the protruding post 1622. In this manner, the pouring groove 1623 and the pouring outlet 117 can be disposed near the exposure opening 212 to facilitate pouring.

Optionally, the dispensing device 100 further includes a second sealing ring 72, and the second sealing ring 72 is disposed between the middle partition 21b and the protruding pillar 1622 of the seat body 21a to improve the sealing performance.

Further, as shown in fig. 8 and the like, a maximum liquid level indicator 1624 for indicating a preferable liquid injection amount when injecting liquid into the liquid storage chamber 11 is provided at the liquid injection port 117. So, through setting up highest liquid level indicator 1624, can prevent to annotate too much washing liquid in the stock solution chamber 11, and then can guarantee that the stock solution chamber 11 no matter is under vertical or horizontal state, can not be because of the washing liquid too full weeping.

Specifically, the maximum liquid level indicator 1624 is a maximum liquid level baffle. Therefore, the identification degree and the prompting effect can be improved. Of course, the maximum level indicator 1624 may be configured as a mark symbol or a scale.

Further, in the horizontal state, the position of the highest liquid level indication mark 1624 is lower than that of the communication hole 2171 to avoid the washing liquid from flowing out from the communication hole 2171 at the time of the highest liquid level.

Further, as shown in fig. 8 and the like, the outer surface of the casting side box wall 162 is provided with a casting groove 1621, and the raised boss 1622 is provided at the bottom of the casting groove 1621.

Specifically, the annular sealing groove 1625 is disposed on the peripheral side of the release groove 1621.

Optionally, two annular limiting protrusions are disposed on the circumferential side of the throwing groove 1621, and an annular sealing groove 1625 is defined between the two annular limiting protrusions.

Further, as shown in fig. 4 and 5, the delivering device 100 further includes an illuminating lamp 50, and the illuminating lamp 50 is disposed in the liquid storage cavity 11. Thus, during liquid injection, the illuminating lamp 50 can illuminate the inner space of the liquid storage cavity 11, the liquid level of the washing liquid and the highest liquid level indicating mark 1624, so as to improve the convenience of liquid injection.

Specifically, the illumination lamp 50 is mounted on the back box wall 164 and is disposed corresponding to the protruding post 1622.

Further, the dispensing device 100 further comprises a detection device for sending a signal that the cover 22 is covered when the cover 22 closes the notch of the flushing tank 211. Specifically, the detection device is electrically connected to a controller of the dishwasher, and the dishwasher cannot be started when the controller does not receive a signal that the cover 22 is closed.

So, through setting up detection device, whether detectable lid 22 is covered to avoid opening under the state that lid 22 was opened and wash the dishes, thereby avoid the dirty water that washes the dishes to get into stock solution chamber 11.

In particular, the detection means comprise a sensor, optionally a pressure sensor or the like. Alternatively, the detection device includes a tact switch, and after the cover 22 is covered, the tact switch is turned on to send a signal that the cover 22 is covered.

Specifically, the dispensing device 100 further comprises an alarm, which alarms when the lid 22 is not closed and the dishwasher is started, that is, the controller is configured to control the alarm to give an alarm when the dishwasher start signal is received but the signal that the lid 22 is closed is not received.

Further, as shown in fig. 5 and 14, the dispensing device 100 further includes a one-way valve 60, the one-way valve 60 is disposed at the dispensing opening 2194, and the one-way valve 60 is used for sending out the washing liquid in the dispensing flow passage 218 in one direction. Thus, the washing water is prevented from entering the input flow path 218 from the input port 2194.

It should be noted that, as can be seen from the above description, the dispensing device 100 of the present invention is improved in various aspects of the dispensing device 100, such as the remaining amount of the washing liquid in the storage chamber 11, the discharging manner of the washing liquid in the storage chamber 11, the pumping manner of the washing liquid in the storage chamber 11, the cleaning manner of the dispensing head 20, and the communication manner between the dispensing head 20 and the atmosphere. It is understood that in other different embodiments of the present invention, the above aspects may be separately improved, such as the aspect of discharging the washing liquid in the liquid storage chamber 11 (in this case, the liquid level detection chamber 12 may be disposed in the liquid storage box 10, or the liquid level detection chamber 12 may not be disposed), and the like; improvements may also be made to at least two of the above aspects, such as improvements may be made collectively to the more relevant aspects.

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

Claims

1. A dosing device for a dishwasher, characterized in that the dosing device comprises:

the air pressure detection sensor comprises an air pressure sensing part arranged at the upper part of the liquid level detection cavity, and the air pressure sensing part is used for identifying the liquid level in the liquid storage cavity by sensing the air pressure in the liquid level detection cavity;

the liquid storage cavity and the liquid level detection cavity are separated by a first partition plate, and the first communication hole is formed in the first partition plate;

the lower end of the door body of the dishwasher is pivoted to the box body of the dishwasher so as to be turned downwards relative to the box body and opened;

in the horizontal state, the first communication hole is also positioned at the lower part of the first partition plate;

a second partition plate is arranged in the liquid level detection cavity to divide the liquid level detection cavity into a communication cavity and a moisture-proof cavity; the communication cavity is communicated with the first communication hole; the second partition plate is provided with a second communication hole so as to communicate the communication cavity with the moisture-proof cavity; the air pressure sensing part is arranged in the moisture-proof cavity;

2. The dispensing device of claim 1 wherein in said upright position said moisture-resistant chamber is located above said communication chamber.

3. The dispensing device according to claim 2, wherein the second partition has a guide section extending toward the second communication hole, and the guide section extends obliquely downward in the upright state.

4. The dispensing device according to claim 2, wherein the moisture-proof chamber has a mounting chamber wall opposite to the second partition, and the air pressure sensing portion is provided on the mounting chamber wall and located at an upper portion of the mounting chamber wall in a horizontal state.

5. The dispensing device according to claim 1, wherein a communication passage communicating the first communication hole and the second communication hole is formed in the communication chamber, and the communication passage has at least one detour portion.

6. The dispensing device of claim 5 wherein the communicating passage comprises a plurality of communicating subchambers that are in communication in sequence, any two adjacent communicating subchambers being in communication via a communicating structure; in the direction from the first communication hole to the second communication hole, any two adjacent communication structures are arranged in a staggered mode, so that the communication channel is provided with at least one circuitous part.

7. The dispensing device according to any one of claims 1 to 6, further comprising a liquid level alarm device for giving an alarm when a value detected by the air pressure detection sensor is lower than a preset value.

8. The dispensing device according to any one of claims 1 to 6 further comprising a fluid extraction device mounted to the reservoir for removing cleaning fluid from the reservoir.

9. A dishwasher, characterized in that the dishwasher comprises:

the refrigerator comprises a shell, a door body and a refrigerator body, wherein the shell comprises a door body and a refrigerator body with an opening, and the door body is pivoted to the refrigerator body to open or close the opening of the refrigerator body; and

a dispensing device as claimed in any one of claims 1 to 8, mounted to the door.