CN113796814B

CN113796814B - Throwing device and dish washing machine

Info

Publication number: CN113796814B
Application number: CN202010546347.1A
Authority: CN
Inventors: 刘日超; 曾宝平; 李翔; 欧海涛
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: 2023-05-30
Anticipated expiration: 2040-06-15
Also published as: CN113796814A

Abstract

The invention discloses a throwing device and a dish washer, wherein the throwing device comprises a liquid storage box and a throwing head, the liquid storage box is provided with a liquid storage cavity for storing washing liquid, and a liquid injection port communicated with the liquid storage cavity is arranged on the liquid storage box; the throwing head comprises a base and a cover body, and the base is arranged on the liquid storage box and covers the liquid injection port; the base is provided with a flushing groove, the bottom of the flushing groove is provided with an exposure opening for exposing the liquid injection opening, and the periphery of the exposure opening is provided with a sealing ring bulge; the cover body is covered at the notch of the flushing groove and is in convex abutting connection with the sealing ring so as to seal the exposure opening; the sealing ring is provided with a communication hole on the bulge so as to communicate the liquid injection port with the external environment; or a communication hole is formed between the sealing ring bulge and the cover body so as to communicate the liquid injection port with the external environment. Therefore, the washing liquid in the liquid storage cavity can be smoothly pumped out.

Description

Throwing device and dish washing machine

Technical Field

The invention relates to the technical field of dish washers, in particular to a throwing device and a dish washer.

Background

In the field of dish washers, it is generally necessary to put a washing liquid into a reservoir communicating with a washing chamber of the dish washer before the dish washer is operated, so that the washing liquid in the reservoir is washed into the washing chamber by the movement of the washing water when the dish washer is operated, 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 chamber for storing a washing liquid, so as to suck the washing liquid in the liquid storage chamber into a washing chamber of a dishwasher before or during each operation of the dishwasher. In the design, the throwing device is provided with a liquid injection port communicated with the liquid storage cavity so as to fill the washing liquid into the liquid storage cavity through the liquid injection port after the washing liquid in the liquid storage cavity is consumed. In order to avoid the cleaning water flowing into the liquid storage cavity from the liquid injection port, the liquid injection port is usually sealed after the liquid is added.

However, since the liquid injection port is sealed, the internal pressure of the liquid storage cavity is reduced along with the discharge of the washing liquid, so that the washing liquid in the liquid storage cavity is not beneficial to being continuously pumped out.

Disclosure of Invention

The invention mainly aims to provide a throwing device, and aims to solve the technical problem that washing liquid in a liquid storage cavity is not easy to withdraw due to the fact that a liquid injection port is sealed in the related art.

In order to achieve the above object, the present invention proposes a throwing apparatus for a dish washer, the throwing apparatus comprising:

the liquid storage box is provided with a liquid storage cavity for storing washing liquid, and a liquid injection port communicated with the liquid storage cavity is formed in the liquid storage box; and

The delivery head comprises a base and a cover body, and the base is arranged on the liquid storage box and covers the liquid injection port; the base is provided with a flushing groove, the bottom of the flushing groove is provided with an exposure opening for exposing the liquid injection opening, and the periphery of the exposure opening is provided with a sealing ring bulge; the cover body is covered at the notch of the flushing groove and is in convex abutting connection with the sealing ring so as to seal the exposure opening;

the sealing ring is provided with a communication hole on the bulge so as to communicate the liquid injection port with the external environment; or a communication hole is formed between the sealing ring bulge and the cover body so as to communicate the liquid injection port with the external environment.

Optionally, the communication hole is provided at a lower portion of the seal ring protrusion.

Optionally, a sealing ring groove is formed in the inner side surface of the cover body, the sealing ring is convexly arranged in the sealing ring groove, and the bottom of the sealing ring groove is convexly abutted with the sealing ring so as to seal the exposure opening.

Optionally, two annular blocking protrusions are arranged on the inner side face of the cover body in a protruding mode, and the sealing ring groove is formed between the two annular blocking protrusions.

Optionally, the communication hole is located in the sealing ring groove, and a ventilation gap communicated with the communication hole is arranged between the annular baffle protrusion and the sealing ring protrusion.

Optionally, the dispensing device further comprises an annular sealing element, and the annular sealing element is arranged between the bottom of the sealing ring groove and the sealing ring protrusion.

Optionally, a ventilation notch is arranged on the sealing ring bulge, and the ventilation notch and the cover body enclose to form a communication hole.

Optionally, the communication hole is disposed away from the liquid injection port.

Optionally, the cover body closes the notch of the flushing tank, a flushing cavity in annular distribution is formed between the sealing ring bulge and the side wall of the flushing tank, and a plurality of flushing ports communicated with the flushing cavity are formed in the feeding head.

Optionally, the liquid storage box is further provided with a liquid feeding port communicated with the liquid storage cavity, the base is provided with a throwing runner, one end of the throwing runner is communicated with the liquid feeding port, and the other end of the throwing runner forms a throwing port;

the throwing device further comprises a one-way valve, the one-way valve is arranged at the throwing port and used for unidirectionally sending out the washing liquid in the throwing flow passage.

The invention also proposes a dishwasher comprising:

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

The throwing device is arranged on the door body.

According to the throwing device, the liquid storage cavity is communicated with the external environment by arranging the communication hole to communicate the liquid injection port with the external environment, so that when the washing liquid in the liquid storage cavity is pumped out, air in the external environment can enter the liquid storage through the communication hole, the air pressure in the liquid storage cavity is the same as the external atmospheric pressure, and the washing liquid in the liquid storage cavity can be pumped out smoothly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a view of an embodiment of a delivery device according to the present invention;

FIG. 2 is a schematic view of a part of the connection between the cover and the base in FIG. 1;

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

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

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 view of an exploded view of the delivery device of FIG. 1;

FIG. 8 is a schematic view of a first cartridge body of the liquid storage cartridge of FIG. 7;

FIG. 9 is a schematic view of the first case of FIG. 8 from another perspective;

FIG. 10 is a schematic view of the left portion of the first case of FIG. 8;

FIG. 11 is a schematic view of the right lower portion of the first case of FIG. 8;

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

FIG. 13 is a schematic view of a structure of a state of the base of FIG. 12;

FIG. 14 is a schematic view of the base of FIG. 12 in another state; wherein the one-way 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 diagram of the structure of the detection circuit board in FIG. 7;

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

Reference numerals 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 guiding groove; 113. a liquid outlet; 114. a liquid feeding port; 115. an outer material pumping port; 116. an inner pumping port; 117. a liquid injection port; 118. a first flow path dividing wall; 119. a second flow path partition; 12. a liquid level detection chamber; 121. a communication chamber; 1211. a communication baffle; 122. a moisture proof cavity; 1221. installing a cavity wall; 123. a second separator; 1231. a diversion 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. side box walls for pumps; 1611. an outer protruding portion; 1612. a first mounting arm; 1613. a second mounting arm; 162. a throwing side box wall; 1621. a putting groove; 1622. a raised post; 1623. a liquid injection groove; 1624. a highest liquid level indication mark; 1625. an annular seal groove; 163. a third side box wall; 164. a backside cartridge wall; 17. a liquid discharge flow channel; 171. a terminal drainage section; 172. a lateral liquid discharge section; 173. a liquid discharge section is started; 18. a liquid pumping flow channel; 181. a transverse liquid pumping section; 182. a vertical liquid pumping section; 1821. bending the runner; 188. a runner step; 189. a flow passage partition; 1891. a laterally extending section; 1892. a vertical extension; 1893. a flow-limiting blocking rib; 191. screw hole columns; 192. a support protrusion; 1921. a limit clamping groove; 193. limiting and back-off; 20. a delivery head; 21. a base; 21a, a seat body; 21b, a middle partition; 211. flushing a groove; 212. an exposure opening; 213. a flushing chamber; 214. an upper flushing port; 215. a lower flushing port; 216. a mounting groove; 2161. mounting a side wall; 2162. a bottom wall is connected; 2163. a first rotating shaft portion; 217. the sealing ring is convex; 2171. a communication hole; 218. putting in a runner; 219. a flow channel pipe portion; 2191. a delivery unit; 2192. a launch extension; 2193. a delivery insertion section; 2194. a delivery port; 22. a cover body; 221. a first rotating hole; 222. a second rotating shaft portion; 223. an annular blocking protrusion; 224. sealing ring grooves; 225. a rotating shaft mounting part; 23. an annular seal; 30. an air pressure detecting sensor; 31. an air pressure sensing part; 32. a detection circuit board; 33. a protective shell; 331. a protective bottom plate; 332. a first protective side plate; 334. a third protective side plate; 336. a clamping protrusion; 337. an avoidance opening; 40. a liquid pumping device; 41. a liquid suction port; 42. a liquid outlet; 50. a lighting lamp; 60. a one-way valve; 71. a first seal ring; 72. and a second sealing ring.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if there is a description of "first", "second", etc. in the embodiments 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 technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The invention provides a throwing device and a dish washing machine. The throwing device is used for the dish washer to be used for throwing the washing liquid to the washing intracavity of dish washer.

Specifically, the dishwasher comprises a housing and a throwing device, wherein the housing comprises a door body and a box body with an opening, and the door body is pivoted to the box body so as to open or close the opening of the box body; the throwing device is arranged 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 to be opened. It will be appreciated that the dispensing device has a vertical position corresponding to when the door is closed and a horizontal position corresponding to when the door is open. For simplicity of description, the following description will be given by default of the dispensing device in the upright state, and it will be pointed out particularly when it is necessary to describe the positional relationship thereof in the horizontal state, but this is not intended to limit the invention.

In one embodiment of the present invention, as shown in fig. 1-17, the dispensing device 100 includes a cartridge 10, a dispensing head 20, and a pneumatic pressure sensor 30. Wherein in fig. 1, 3, 4, 5, 6, 8 and 9, the cartridge 10 is in or approximately in an upright position at different viewing angles; in fig. 12 and 13, the base 21 is in or approximately in an upright position at different viewing angles; in fig. 17, the cover 22 is approximately in the 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 where the washing liquid submerges the first communicating hole 13.

Specifically, the liquid storage chamber 11, the liquid level detection chamber 12, and the first communication hole 13 form a communicating vessel structure. When liquid is injected (i.e. washing liquid is filled) into the liquid storage cavity 11, the washing liquid entering the liquid storage cavity 11 can enter the liquid level detection cavity 12 through the first communication hole 13, and the washing liquid entering the liquid level detection cavity 12 can compress air in the liquid level detection cavity 12 and form a variable space in the liquid level detection cavity 12. Specifically, when the washing liquid enters the liquid level detection chamber 12, the volume of the variable space becomes small, and the air pressure therein becomes large; when the washing liquid flows from the liquid level detecting 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 washing liquid in the liquid storage cavity 11 is continuously consumed, and at this time, the washing liquid in the liquid level detection cavity 12 flows back into the liquid storage cavity 11, so that the air pressure in the liquid level detection cavity 12 becomes smaller.

As shown in fig. 6, the air pressure detecting sensor 30 includes an air pressure sensing part 31 provided in the liquid level detecting chamber 12, and the air pressure sensing part 31 is configured to identify the 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 washing liquid in the liquid storage chamber 11 can be determined by the air pressure detecting sensor 30.

According to the throwing 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 quantity of the washing liquid in the liquid storage cavity 11 is determined. Thus, the user can conveniently know the residual quantity of the washing liquid in the liquid storage cavity 11, so that the washing liquid can be added in time after the washing liquid is used up.

In addition, the residual quantity 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 continuously consumed, the air pressure in the liquid level detection chamber 12 is continuously decreased, and the detection value of the air pressure detection sensor 30 is continuously decreased.

When a predetermined amount of the washing liquid remains in the liquid storage chamber 11, the predetermined amount of the washing liquid still submerges the first communicating hole 13, but the amount thereof is small, and the detection value of the air pressure detection sensor 30 is a first predetermined detection value or is within a first predetermined range. That is, when the detection value of the air pressure detection sensor 30 is reduced to the first detection value or falls within the first preset range value, it indicates that the washing liquid in the liquid storage chamber 11 is in a critical state (i.e., the washing liquid is still, but not more, usable), that is, it indicates that the washing liquid can be added into the liquid storage chamber 11.

When the washing liquid in the liquid storage cavity 11 is exhausted, the first communication hole 13 is communicated with the liquid level detection cavity 12 and the liquid storage cavity 11, and the air pressure in the liquid level detection cavity 12 is equal to the air pressure in the liquid storage cavity 11, and at this time, the detection value of the air pressure detection sensor 30 is a second preset detection value or is within a second preset range value. That is, when the detection value of the air pressure detection sensor 30 is reduced to the second detection value or falls within the second preset range value, it indicates that the washing liquid in the liquid storage chamber 11 is in a depleted state, that is, the washing liquid needs to be added into the liquid storage chamber 11.

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

Further, as shown in fig. 6 and 9, the liquid storage chamber 11 and the liquid level detection chamber 12 are separated by a first partition 14, and the first communication hole 13 is provided in the first partition 14. Thus, by providing the first partition 14 to partition the liquid storage chamber 11 and the liquid level detection chamber 12 in the liquid storage cartridge 10, the structure can be simplified.

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 a smaller amount of the washing liquid remains in the liquid storage cavity 11, the washing liquid can still submerge the first communication hole 13, so that the gas amount in the liquid level detection cavity 12 is unchanged in the use process of the throwing device 100, and the detection accuracy is improved.

Further, in the horizontal state, the first communication hole 13 is also located at a lower portion of the first partition 14. It will be appreciated that the cleaning solution is fluid, and by having the first communication hole 13 also located below the first partition 14 in the horizontal state, it is convenient to have the dispensing device 100 well submerge the first communication hole 13 when changing from the vertical state to the horizontal state. In this way, when the door body of the dish washer is repeatedly opened and closed, the throwing device 100 can always submerge the first communication hole 13 along with the repeated conversion process of the vertical state and the horizontal state, so that the air quantity in the liquid level detection cavity 12 is unchanged, and the accuracy of detecting the liquid level change mode through air pressure change is ensured.

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 a peripheral side 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 is disposed adjacent to the second side box wall and is disposed opposite to the third side box wall 163, and the fourth side box wall is disposed opposite to the second side box wall. Wherein the first side case wall is a pump side case wall 161, the second side case wall is a delivery side case wall 162, and the fourth side case wall is a back side case wall 164.

In the upright state, the bottom box wall 151 is located below the first partition 14; in the horizontal position, the back side cartridge wall 164 is positioned below the first partition 14.

Specifically, as shown in fig. 6 and 9, the first communication hole 13 is provided near the bottom case wall 151 and near the back case wall 164 such that: in the upright state, the first communication hole 13 is located at a lower portion 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, two side edges of the first partition 14 are respectively connected to the delivery side box wall 162 and the back side box wall 164, an upper end of the first partition 14 is connected to the top box wall 152, and a lower end of the first partition 14 is connected to the bottom box wall 151. In this way, the liquid storage chamber 11 and the liquid level detection chamber 12 can be defined in the liquid storage box 10, and the liquid storage chamber 11 and the liquid level detection chamber 12 are respectively disposed at two sides of the first partition 14.

Specifically, a communication notch is disposed at the lower end of the first partition 14, and the communication notch encloses with the bottom box wall 151 and the back box wall 164 to form the first communication hole 13, so that the first communication hole 13 is disposed near the bottom box wall 151 and near the back box wall 164.

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

Thus, the washing liquid in the liquid storage cavity 11 can flow into the communicating cavity 121 through the liquid guiding groove 112, and when a small amount of washing liquid remains in the liquid storage box 10, the washing liquid can flow into the liquid guiding groove 112 under the action of gravity, so that a small amount of washing liquid can still submerge the first communicating hole 13, and the application range of the air pressure detecting sensor 30 is improved.

In some embodiments, the liquid guiding step 111 may have a first step surface connected to the dispensing side box wall 162, and a second step surface connected to the bottom box wall 151, where the first step surface extends obliquely toward a direction approaching the bottom box wall 151, and/or the second step surface extends obliquely toward a direction approaching the back side box wall 164. In this way, 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 123 is disposed in the liquid level detecting chamber 12 to partition a communication chamber 121 and a moisture proof chamber 122 in the liquid level detecting chamber 12; the communication cavity 121 communicates 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 cavity 121 and the moisture-proof cavity 122 in the liquid level detection cavity 12, on one hand, the washing liquid entering the liquid level detection cavity 12 can be limited in the communication cavity 121, so as to prevent the washing liquid from contacting the air pressure sensing part 31 to cause short circuit failure; on the other hand, the air pressure sensor 31 may be used to prevent the washing liquid from contacting or wetting the device 100 during the switching between the vertical state and the horizontal state.

Further, in the horizontal state, the second communication hole 1232 is located at an upper portion of the second partition 123.

Specifically, the second communication hole 1232 is provided near the delivery-side cartridge wall 162 such that: in the horizontal state, the second communication hole 1232 is located at an upper portion of the second partition 123.

In this way, when the dispensing device 100 is switched to the horizontal state, the second communication hole 1232 cannot be immersed by the washing liquid in the communication cavity 121, so that the washing liquid in the communication hole 2171 is prevented from entering the moisture-proof cavity 122 to contact/wet the air pressure sensing portion 31.

Further, in the upright state, the moisture-proof chamber 122 is located above the communication chamber 121. In this way, it is possible to facilitate avoiding the washing liquid in the communication chamber 121 from flowing into the moisture proof chamber 122, so as to avoid the washing liquid from contacting/wetting the air pressure sensing portion 31.

Specifically, the second partition 123 is transversely disposed on the upper portion of the liquid level detecting chamber 12, so as to divide the liquid level detecting 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 guiding section 1231 extending toward the second communication hole 1232, and in the upright state, the flow guiding section 1231 extends obliquely downward. Thus, if the cleaning solution in the communication cavity 121 erroneously flows into the moisture-proof cavity 122, the guiding segment 1231 can be conveniently guided to flow back into the communication cavity 121.

Further, the moisture proof chamber 122 has a mounting chamber wall 1221 opposite to the second partition 123, the air pressure sensing part 31 is provided on the mounting chamber wall 1221, and in the horizontal state, the air pressure sensing part 31 is provided on an upper portion of the mounting chamber wall 1221. Specifically, the air pressure sensing portion 31 is disposed near the delivery side case wall 162 such that: in the horizontal state, the air pressure sensing part 31 is located at the upper portion of the installation cavity wall 1221.

In this way, 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, the mounting cavity wall 1221 is provided with a sensor mounting hole 124 penetrating through the wall of the liquid storage box 10, and the air pressure detecting sensor 30 is mounted on 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 further covered with a shield 125, and a vent hole 1251 is provided on the shield 125 to further prevent the washing liquid from contacting/wetting the air pressure sensing part 31.

Optionally, the shield 125 is integrally provided with the cartridge wall of the cartridge 10.

Further, as shown in fig. 6, 7, 15 and 16, the air pressure detecting sensor 30 further includes a protective housing 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 housing 33 is detachably covered on the detecting circuit board 32. Thus, the air pressure detection sensor 30 can be detected after the protective case 33 is detached.

Specifically, as shown in fig. 9 and 10, screw hole columns 191 are provided on the outer surface of the liquid storage box 10, and the detection circuit board 32 is mounted on the screw hole columns 191.

Specifically, as shown in fig. 9 and 10, the outer surface of the liquid storage box 10 further includes a supporting protrusion 192, the supporting protrusion 192 is provided with a limiting slot 1921, 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, the outer surface of the liquid storage box 10 is further provided with a limiting back-off 193, and the limiting back-off 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 opposite to each other.

Specifically, the protective shell 33 includes a protective bottom plate 331, and a first protective side plate 332 and a second protective side plate disposed on opposite sides of the protective bottom plate 331, where the inner side surfaces of the first protective side plate 332 and the second protective side plate are respectively provided with a protruding clip 336.

Specifically, the protective shell 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 respectively provided with an avoidance opening 337.

Further, as shown in fig. 6, 9 and 10, a communication passage (not shown) that communicates the first communication hole 13 and the second communication hole 1232 is formed in the communication chamber 121, the communication passage having at least one detour. In this way, by forming the communication passage having at least one detour 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 moisture proof chamber 122.

Specifically, as shown in fig. 6, 9 and 10, the communication channel includes a plurality of communication sub-cavities that are sequentially communicated, and any two adjacent communication sub-cavities are communicated through a communication structure; any two adjacent communication structures are arranged 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., greater than or equal to two) communication partitions 1211 are disposed in the communication chamber 121, and the plurality of communication partitions 1211 define a plurality of communication sub-chambers in the communication chamber 121, and the communication structure is disposed on the communication partition 1211.

Alternatively, the communication partition 1211 has a drainage section extending toward the second communication hole 1232, the drainage section extending obliquely downward.

Specifically, the communication channel is of a labyrinth structure.

Further, the dispensing device 100 further includes a liquid level alarm device, where the liquid level alarm device is configured to 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 the step of emitting alarm light (such as flashing light or long-lighting light) and/or emitting beeping sound.

Further, as shown in fig. 1-17, the dispensing device 100 further includes a liquid pumping device 40, where the liquid pumping device 40 is mounted on the liquid storage box 10, and is used for discharging the washing liquid in the liquid storage cavity 11 for dispensing into the washing cavity of the dishwasher.

Specifically, the liquid pumping device 40 is a liquid pump, and is used for pumping out the washing liquid in the liquid storage cavity 11; wherein, the liquid pump is a constant delivery pump. Therefore, quantitative washing liquid can be pumped out from the liquid storage cavity 11 automatically in a one-row pumping mode, so that quantitative washing liquid can be put into the washing cavity of the dish washer, and automatic quantitative putting of the washing liquid can be realized.

Of course, in other embodiments, the suction device 40 may be a manual suction device, which need not be described in detail herein.

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

Further, as shown in fig. 1-17, the liquid drawing device 40 is disposed outside the liquid storage box 10. In this way, on the one hand, the volume of the liquid storage cavity 11 can be conveniently increased, on the other hand, the structural design in the liquid storage box 10 can be simplified so as to manufacture the liquid storage box 10, and on the other hand, the installation space of the liquid pumping device 40 can be further increased so as to install the liquid pumping device 40.

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

Further, as shown in fig. 5, 6, and 9-11, the liquid storage box 10 is further provided with a liquid discharge channel 17, the liquid storage box 10 is provided with a liquid discharge port 113 communicated with one end of the liquid discharge channel 17, and a liquid feed port 114 communicated with the other end of the liquid discharge channel 17, the liquid discharge channel 17 comprises a terminal liquid discharge section 171 communicated with the liquid feed port 114, and the terminal liquid discharge section 171 extends downwards from the liquid feed port 114; the liquid suction port 41 of the liquid suction device 40 is communicated with the liquid storage cavity 11, the liquid outlet 42 of the liquid suction device 40 is communicated with the liquid discharge port 113, and the liquid suction device 40 is used for discharging liquid in the liquid storage cavity 11 from the liquid delivery port 114.

Wherein the term "downwardly extending" of the end drain section 171 from the liquid delivery opening 114 includes both downwardly extending along the plumb line (i.e., extending straight downwardly) and downwardly extending obliquely (i.e., extending obliquely downwardly). That is, the end drain section 171 extends in the up-down direction.

Specifically, by communicating the liquid suction port 41 of the liquid suction device 40 with the liquid storage chamber 11, the liquid suction device 40 can suck the washing liquid in the liquid storage chamber 11; at the same time, by communicating the liquid outlet 42 of the liquid extracting device 40 with the liquid outlet 113, the washing liquid extracted by the liquid extracting device 40 can be discharged into the liquid outlet flow path 17 and sent out from the liquid sending port 114 of the liquid outlet flow path 17.

Specifically, after the liquid draining of the liquid draining device 40 is completed, most of the washing liquid near the liquid delivering port 114 is deposited at the tail end liquid draining section 171 under the action of gravity, so that the washing liquid in the liquid draining flow passage 17 can be prevented from automatically flowing out from the liquid delivering port 114, the liquid level area of the liquid draining flow passage 17, which is interacted with air, can be reduced, and the evaporation of water in the washing liquid in the liquid draining flow passage 17 can be reduced, so that the probability of scabbing deposition of the washing liquid in the liquid draining flow passage 17 can be reduced.

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

Further, as shown in fig. 5, 6, and 9-11, the liquid outlet 113 is higher than the liquid inlet 114, or the liquid outlet 113 and the liquid inlet 114 are at the same height, or the liquid outlet 113 is slightly lower than the liquid inlet 114. In this way, the liquid discharge flow channel 17 has a longer flow channel length, so that a larger amount of washing liquid can be stored in the liquid discharge flow channel 17, and the probability of scabbing and depositing of the washing liquid in the liquid discharge flow channel 17 is further reduced.

In this embodiment, the liquid outlet 113 is slightly higher than the liquid inlet 114.

Further, as shown in fig. 5, 6, and 9-11, the drain flow passage 17 further includes a lateral drain section 172 communicating with the end drain section 171 and extending in a direction approaching the drain port 113, and a start drain section 173 communicating the lateral drain section 172 with the drain port 113; the initial drain section 173 extends at least partially downwardly sloping in the direction of the drain 113 toward the lateral drain section 172. In this way, the liquid discharge flow path 17 can be provided in a (substantially) U-shape, so that the liquid discharge flow path 17 can have a long flow path length.

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

It will be appreciated that the liquid discharge flow channel 17 may be configured in other manners, for example, the liquid discharge flow channel 17 may include a transverse transition section, an obliquely downward connection 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 feed port 114; for example, the liquid discharge channel 17 may include a transverse transition section, a long inclined downward curved section, and a terminal liquid discharge section 171 extending in the up-down direction (i.e., the liquid discharge channel 17 is substantially V-shaped) connected in sequence from the liquid discharge port 113 to the liquid feed port 114; further, if the liquid outlet 113 is lower than the liquid inlet 114, the liquid outlet channel 17 includes a lateral liquid outlet 172 and a terminal liquid outlet 171 extending in the up-down direction connected in sequence from the liquid outlet 113 to the liquid inlet 114; etc.

Further, as shown in fig. 5, 6, and 9-11, the liquid storage box 10 is integrally injection molded with a first flow path partition 118 and a second flow path partition 119 disposed opposite to each other, and the liquid discharge flow path 17 is defined between the first flow path partition 118 and the second flow path partition 119. In this way, the number of corresponding assembly steps is reduced, and the sealability of the drain flow passage 17 is advantageously improved.

Specifically, two side edges of the first flow path partition 118 are connected to the dispensing side box wall 162 and the back side box wall 164, respectively, and two side edges of the second flow path partition 119 are connected to the dispensing side box wall 162 and the back side box wall 164, respectively; one end of the first flow path partition wall 118 is connected to the pump side case wall 161, and one end of the second flow path partition wall 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 dividing wall 118 is connected to the other end of the second flow path dividing wall 119 by a circular arc section to form a terminal drainage column communicating with the liquid feed port 114.

Wherein the first flow divider wall 118 is positioned above the second flow divider wall 119.

Further, as shown in fig. 5, 6, and 9-11, the liquid storage box 10 is further provided with a liquid suction channel 18, the liquid storage box 10 is further provided with an outer liquid suction port 115 communicated with one end of the liquid suction channel 18, and the other end of the liquid suction channel 18 is formed with an inner liquid suction port 116 communicated with the liquid storage cavity 11. The liquid suction opening 41 of the liquid suction device 40 is communicated with the outer liquid suction opening 115, so that the liquid suction opening 41 of the liquid suction device 40 is communicated with the liquid storage cavity 11 for sucking the washing liquid in the liquid storage cavity 11. Thus, by providing the liquid suction flow path 18 in the liquid storage box 10, the washing liquid in the liquid storage chamber 11 can be easily sucked out.

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

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

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

Further, as shown in FIGS. 5, 6, and 9-11, the suction channel 18 has at least one curved channel 1821. In this way, by providing the suction flow path 18 with at least one curved flow path 1821 to utilize the tension of the washing liquid, the amount of washing liquid flowing out of the suction flow path 18 can be reduced even if the inner suction port 116 is exposed, so that the air intake can be reduced, and even prevented.

Further, in the horizontal state, the inner pumping port 116 is also located at the bottom of the liquid storage cavity 11. Specifically, the inner suction port is positioned adjacent the back side cartridge wall 164 such that: in the horizontal state, the inner pumping port 116 is also located at the bottom of the liquid storage cavity 11.

Thus, when the dispensing device 100 moves to the horizontal state, the inner material suction opening 116 is also located at the bottom of the liquid storage cavity 11, so that the washing liquid still can submerge the inner material suction opening 116, and the inner material suction opening 116 can be prevented from being exposed, so that the washing liquid in the liquid suction channel 18 can be prevented from flowing out and entering air, and the amount of the discharged washing liquid can be prevented from being reduced due to the fact that the liquid suction device 40 sucks air. In short, in the horizontal state, air is prevented from entering the suction channel 18.

Further, as shown in fig. 5, 6, and 9-11, a flow path partition 189 is further provided in the cartridge 10, and the flow path partition 189 is isolated from the wall of the cartridge 10 by the pump flow path 18. Thus, by utilizing the cartridge walls of the cartridge 10 to form the fluid extraction channel 18, the structural design within the cartridge 10 can be facilitated and cost savings can be facilitated.

Specifically, the flow channel separator 189 is integrally injection molded with the wall of the liquid storage box 10. In this way, the sealing property can be facilitated to be improved.

Specifically, the two side edges of the flow channel separator 189 are connected to the delivery side wall 162 and the back side wall 164, respectively.

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

Further, as shown in fig. 5, 6, and 9-11, the fluid pumping channel 18 includes a lateral fluid pumping section 181 and a vertical fluid pumping section 182 in communication with the lateral fluid pumping section 181, in the vertical state, the lateral fluid pumping section 181 is located at the bottom of the fluid storage box 10, and the vertical fluid pumping section 182 is located at the side of the fluid 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 lateral liquid-pumping section 181 extends along a horizontal direction, and the vertical liquid-pumping section 182 extends along an up-down direction.

Thus, by including the lateral suction section 181 in the suction channel 18, on the one hand, it is possible to facilitate a flexible design of the position of the inner suction opening 41, for example, such that it is located close to the lowest part of the bottom box wall 151; on the other hand, the difficulty of pouring the washing liquid out of the liquid suction channel 18 can be increased to further prevent air from entering the liquid suction channel 18.

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

Further, as shown in fig. 5, 6, and 9-11, the flow channel partition 189 includes a laterally extending section 1891 disposed corresponding to the bottom box wall 151, the laterally extending section 1891 being spaced apart from the bottom box wall 151 to form a laterally liquid pumping section 181 between the laterally extending section 1891 and the bottom box wall 151; an inner draw port 116 is formed between the end of the laterally extending section 1891 remote from the pump side cartridge wall 161 and the bottom cartridge wall 151. In this way, the structure can be simplified.

Specifically, the laterally extending segment 1891 extends in a generally horizontal direction.

Further, as shown in fig. 5, 6, and 9-11, the end of the laterally extending section 1891 away from the pump side wall 161 is provided with a flow-limiting rib 1893 extending in a direction approaching the bottom wall 151, and the inner draw-out port 116 is formed between the flow-limiting rib 1893 and the bottom wall 151. In this way, the transverse pumping section 181 may have a larger flow cross-section, and the inner pumping port 116 may be reduced to further prevent air from entering the pumping channel 18.

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

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

In this way, the width of the transverse liquid suction section 181 and the inner liquid suction opening 116 in the thickness direction of the liquid storage cavity 11 can be reduced, and the inner liquid suction opening 116 is positioned at the bottom of the liquid storage cavity 11 when the delivery device 100 is in a horizontal state, so that air is prevented from entering the liquid suction channel 18 in the horizontal state.

In this embodiment, the thickness of the liquid storage chamber 11 is the distance between the dispensing side wall 162 and the back side wall 164.

Specifically, the runner step 188 is connected to the liquid guiding step 111 at the inner pumping port 116. This may also facilitate the formation of the cartridge 10.

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

Further, as shown in fig. 5, 6, and 9-11, the flow path separator 189 further includes a vertically extending section 1892 connected to the laterally extending section 1891, the vertically extending section 1892 being disposed corresponding to the pump side box wall 161 and spaced apart from the pump side box wall 161 to form a vertical pumping section 182 between the vertically extending section 1892 and the pump side box wall 161; the outer pumping port 115 is arranged on the side box wall 161 for the pump 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 path bulkhead 119. In this manner, a vertical drainage section 182 may be formed.

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

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

Specifically, as shown in fig. 5, 6, and 9-11, the lower portion of the pump side casing wall 161 protrudes outwards to form an outer flange 1611, and the vertically extending section 1892 includes a curved portion corresponding to the outer flange 1611, and a curved flow channel 1821 is formed between the curved portion and the outer flange 1611.

Specifically, the outer flange 1611 is provided with a first mounting arm 1612, the pump side casing wall 161 is further provided with a second mounting arm 1613 located above the first mounting arm 1612, and one side of the liquid pumping device 40 is mounted on the first mounting arm 1612, and the other side is mounted on the second mounting arm 1613.

Of course, in other embodiments, the suction channel 18 may be formed in other ways, such as by two oppositely disposed channel baffles 189 which also define the suction channel 18; for another example, a shell cover with an opening at one side and an arc-shaped cross section can be provided to form an pumping channel 18 by surrounding with the wall of the liquid storage box 10; etc.

Specifically, the liquid storage box 10 includes a first box body 10a and a second box body 10b, where the first box body 10a and the second box body 10b are assembled to form the liquid storage box 10. Wherein, the liquid filling port 117 and the liquid feeding port 114 are arranged on the first box body 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 communicated with the liquid storage cavity 11. In this way, the washing liquid can be added into the liquid storage chamber 11 through the liquid injection port 117.

Specifically, the filling port 117 is provided in the dispensing side wall 162. Thus, when the washing liquid needs to be added into the liquid storage cavity 11, the dispensing device 100 can be switched to a horizontal state, so that the liquid injection port 117 is arranged upwards, and liquid injection is facilitated.

Of course, in other embodiments, the filling port 117 may be disposed at other locations, such as the top box wall 152, the upper portion of the pump side box wall 161, etc.

Further, as shown in fig. 1 to 17, the dispensing device 100 further includes a dispensing head 20, where the dispensing head 20 includes a base 21 and a cover 22, and the base 21 is mounted on the liquid storage box 10 and covers the liquid injection port 117; a flushing groove 211 is arranged on the base 21, and an exposure opening 212 for exposing the liquid injection opening 117 is arranged at the bottom of the flushing groove 211; the cover 22 is covered at the notch of the flushing groove 211 and seals the exposing opening 212 to seal the liquid filling opening 117.

Specifically, the base 21 is in sealing connection with the liquid storage box 10, so as to prevent the washing water in the dishwasher from flowing into the liquid injection port 117 and flowing into the liquid storage cavity 11 from the connection part of the base 21 and the liquid storage box 10.

Specifically, the delivery head 20 is mounted to the delivery side cartridge wall 162.

Specifically, when the washing liquid needs to be added into the liquid storage cavity 11, the dispensing device 100 can be switched to a horizontal state, so that the dispensing side box wall 162 is arranged upwards; then, the lid 22 is opened to open the exposing opening 212 to expose the liquid filling opening 117, so that the liquid storage chamber 11 can be filled with the washing liquid through the liquid filling opening 117; after the filling is completed, the cover 22 is reinstalled to reseal the reveal opening 212.

Further, the cover 22 also closes the notch of the flushing groove 211. In this way, the washing water is prevented from entering the washing tub 211 from the notch (relatively powerful) of the washing tub 211, so that the washing water is prevented from entering the liquid storage chamber 11.

Specifically, the cover 22 closes the notch of the flushing groove 211, seals the exposing opening 212, and forms a flushing cavity 213 distributed in a ring shape on the peripheral side of the exposing opening 212. It will be appreciated that the rinse chamber 213 is formed between the sidewall of the rinse chamber 213 and the sealing structure of the cover 22 and the reveal port 212.

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

It will be appreciated that when the liquid storage chamber 11 is filled with the washing liquid, the washing liquid may be spilled on the wall of the washing tub 211, i.e. the wall of the washing chamber 213, and thus may be wasted. Furthermore, by providing the flushing chamber 213, the washing liquid can be prevented from being scattered to other positions of the dispensing device 100.

As such, when the washing liquid is injected into the liquid storage chamber 11 through the liquid injection port 117, the washing liquid may be scattered in the washing chamber 213; however, when the dishwasher is in operation, a flow of cleaning water may enter the rinse chamber 213 from the rinse port and then flow out from the rinse port located at the lower portion of the delivery head 20, so that the cleaning liquid spilled in the rinse chamber 213 may be flushed out, thereby allowing the spilled cleaning liquid to be utilized as well.

Wherein the flushing port at the lower part of the delivery head 20 is a lower flushing port 215.

Further, as shown in fig. 5, at least one of the flushing ports is provided in an upper portion of the delivery head 20. Wherein the rinse port located at the upper portion of the delivery head 20 is an upper rinse port 214.

In this way, the cleaning water entering the cleaning chamber 213 through the upper cleaning port 214 can be cleaned downward from above the chamber wall of the cleaning chamber by gravity, thereby cleaning the cleaning chamber 213.

Specifically, the number of the upper flushing ports 214 is one, and the upper flushing ports 214 are bar-shaped holes. In this way, the amount of the washing water introduced into the washing chamber 213 from above the washing chamber can be increased, so that the washing effect can be enhanced. Of course, in other embodiments, the amount of the cleaning water entering the cleaning chamber 213 from above the cleaning chamber may be increased in other manners, for example, the number of the upper cleaning ports 214 may be made plural, and the plural cleaning ports are sequentially arranged at intervals on the upper portion of the delivery head 20; etc.

Further, as shown in fig. 1, 2, 4, 5, 8 and 12, the cover 22 is rotatably installed at the notch of the flushing groove 211. Thus, the notch of the flushing groove 211 can be opened or closed by rotating the cover 22, and the exposing port 212 can be opened or closed at the same time. Of course, in other embodiments, the cover 22 may be provided in other manners, such as having the cover 22 detachably mounted at the notch of the flushing groove 211, and such as having the cover 22 slidably mounted at the notch of the flushing groove 211, etc.

Specifically, a rotatable connection between the cover 22 and the base 21 is provided with an installation gap, and the installation 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 delivery head 20, and the flushing port defined by the installation gap is an upper flushing port 214. Of course, the rotatable connection between the cover 22 and the base 21 may be located at other positions of the delivery head 20, such as a side portion or a lower portion.

Specifically, as shown in fig. 5, 13 and 14, the base 21 is further provided with a mounting groove 216 that communicates with the flushing groove 211, the mounting groove 216 includes two mounting side walls 2161 that are disposed opposite to each other, and a connecting bottom wall 2162 that connects the two mounting side walls 2161, and two ends of the first side edge of the cover plate are rotatably connected to the two mounting side walls 2161, respectively.

Optionally, one of the mounting side walls 2161 is provided with a first rotating shaft portion 2163, one end of the first side edge of the corresponding cover plate is provided with a first rotating hole 221, and the first rotating shaft portion 2163 is rotatably mounted in the first rotating hole 221; the other mounting side wall 2161 is provided with a second rotating hole, the other end of the first side edge of the cover plate corresponding to the second rotating hole is provided with a second rotating shaft part 222, and the second rotating shaft part 222 is rotatably mounted in the second rotating hole; so that the cover 22 can be rotatably mounted at the notch of the flushing groove 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 notch is formed between the first rotation hole 221 and the second rotation shaft portion 222, and the flushing notch is used to form the upper flushing port 214.

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

Specifically, the first pivot portion 2163 may be integrally provided with the base 21, or may be separately provided with respect to the base 21. When the first rotating shaft portion 2163 is separately connected to the base 21, the mounting side wall 2161 is provided with a rotating shaft mounting hole, and the first rotating shaft portion 2163 is mounted in the rotating shaft mounting hole; optionally, an external thread is provided at one end of the first shaft portion 2163, and the shaft mounting hole is a threaded hole, so as to connect the first shaft portion 2163 with the base 21 through a threaded connection structure.

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

In this embodiment, the first pivot portion 2163 is separately disposed from the base 21, and the second pivot portion 222 is integrally disposed with the cover 22.

Specifically, the cover 22 is further fastened or attracted to the base 21 to close the notch of the flushing groove 211. Optionally, the fastening connection structure or the engaging 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. 1-17, a sealing ring protrusion 217 is disposed at the periphery of the exposing opening 212, and the cover 22 abuts against the sealing ring protrusion 217 to seal the exposing opening 212. Wherein the flushing cavity 213 is arranged between the sealing ring protrusion 217 and the side wall of the flushing groove 211. Thus, by providing the sealing ring protrusion 217 at the periphery of the exposing port 212, it is convenient to cooperate with the cover 22 to seal the exposing port 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 injection port 117 with the external environment; alternatively, a communication hole 2171 is formed between the seal ring protrusion 217 and the cover 22 to communicate the pouring port 117 with the external environment. Specifically, the communication hole 2171 communicates the exposure port 212 with the external environment, so that the injection port 117 can communicate with the external environment. It is understood that when the cover 22 closes the notch of the flushing groove 211, the communication hole 2171 may communicate with the external environment through the flushing cavity 213 and the flushing port.

Thus, 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 washing liquid in the liquid storage chamber 11 is extracted, air in the external environment can enter the liquid storage chamber through the communication hole 2171, so that the air pressure in the liquid storage chamber 11 is the same as the external atmospheric pressure, and the washing liquid in the liquid storage chamber 11 can be smoothly extracted.

In this embodiment, the sealing ring protrusion 217 is provided with a ventilation notch, and the ventilation notch and the cover 22 enclose 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, a ventilation groove is formed on the inner surface of the cover 22, the sealing ring protrusion 217 is abutted against the ventilation groove, 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; etc.

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

Further, as shown in fig. 17, a sealing ring groove 224 is provided on the inner side surface of the cover 22, the sealing ring protrusion 217 is provided in the sealing ring groove 224, and the bottom of the sealing ring groove 224 abuts against the sealing ring protrusion 217 to seal the exposing opening 212. In this way, the cleaning water entering the cleaning chamber 213 is advantageously prevented from moving to the contact point between the seal ring protrusion 217 and the cover 22, thereby improving the sealing performance.

Specifically, as shown in fig. 7, the dispensing device 100 further includes an annular sealing member 23, where the annular sealing member 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 blocking protrusions 223 are disposed on the inner side surface of the cover 22 in a protruding manner, and a sealing ring groove 224 is formed between the two annular blocking protrusions 223. In this way, the structure of the seal ring groove 224 can be simplified.

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

Specifically, a ventilation gap communicated with the communication hole 2171 is provided between the annular stop protrusion 223 and the seal ring protrusion 217, so as to allow the gas to circulate.

Further, in connection with fig. 1, the communication hole 2171 is provided away from the pouring port 117. In this way, even if a small amount of the cleaning water introduced into the flushing chamber 213 enters the exposing port 212 from the communication hole 2171, it is prevented from entering the liquid storage chamber 11 through the liquid filling port 117.

In the present embodiment, the pouring port 117 is provided near the upper portion of the flushing groove 211, and the communication hole 2171 is provided near the lower portion of the flushing groove 211 so that the communication hole 2171 is provided away from the pouring port 117.

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

Further, as shown in fig. 5, the base 21 is provided with a dispensing flow passage 218, one end of the dispensing flow passage 218 is communicated with the liquid feeding port 114, and the other end forms a dispensing port 2194. In this way, the washing liquid discharged from the liquid feed port 114 can be fed into the washing chamber of the dishwasher through the feeding flow path 218 and the feeding port 2194 thereof.

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

Specifically, as shown in fig. 12 and 13, the base 21 includes a base 21a disposed in a ring shape and a middle partition 21b disposed in the middle of the base 21a, where a flushing groove 211 is formed on a side of the middle partition 21b away from the liquid storage box 10, and the middle partition 21b is used to form a bottom of the flushing groove 211, that is, the exposure opening 212 is disposed on the middle partition 21 b.

As shown in fig. 12 to 14, the flow path tube 219 includes a delivery portion 2191 formed on the base 21a, a delivery extension portion 2192 connected to the delivery portion 2191 and extending in a direction away from the base 21a, and a delivery insertion portion 2193 connected to the delivery extension portion 2192 and extending in a direction toward the cartridge 10, the delivery extension portion 2192 is provided on the inner side of the base 21a, the delivery insertion portion 2193 is inserted into the liquid delivery port 114, and the delivery portion 2191 is formed with a delivery port 2194.

Specifically, as shown in fig. 1, 4, 5, 7, etc., the seat 21a is sealingly mounted on the outer surface of the liquid storage box 10. Specifically, the seat 21a is mounted to the delivery-side cartridge wall 162. Optionally, the dispensing device 100 further includes a first sealing ring 71, where the first sealing ring 71 is disposed between the dispensing side wall 162 and the base 21a, so as to improve tightness.

Specifically, as shown in fig. 8, the outer surface of the delivery side wall 162 is provided with an annular sealing groove 1625, 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 tightness.

Further, the dispensing port 2194 is provided at the lower portion of the dispensing head 20. Thus, 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 provided on both sides of the dispensing port 2194. It will be appreciated that when the washing liquid is poured from the pouring opening 2194, the washing liquid may be splashed to the vicinity of the pouring opening 2194, and by disposing the lower flushing opening 215 at one side of the pouring opening 2194, the splashed washing liquid can be conveniently flushed; further, by providing the plurality of lower flushing ports 215 on both sides of the dispensing port 2194, the flushing effect can be improved.

Further, as shown in fig. 7 and 8, the liquid storage box 10 is provided with a liquid filling groove 1623, and the liquid filling opening 117 is provided at the bottom of the liquid filling groove 1623. Specifically, the liquid injection groove 1623 is disposed on the outer surface of the dispensing side 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 difficulty in liquid injection can be reduced.

Further, as shown in fig. 8, the liquid storage box 10 is provided with a raised boss 1622, the raised boss 1622 is disposed corresponding to the exposure opening 212, and the liquid injection groove 1623 is disposed on an end surface of the raised boss 1622. In this manner, the pouring recess 1623 and the pouring spout 117 may be disposed proximate the exposing opening 212 to facilitate pouring.

Optionally, the dispensing device 100 further includes a second sealing ring 72, where the second sealing ring 72 is disposed between the middle partition 21b and the raised boss 1622 of the seat 21a, so as to improve tightness.

Further, as shown in fig. 8, etc., a highest liquid level indication mark 1624 is provided at the liquid injection port 117, and the highest liquid level indication mark is used for indicating a preferred liquid injection amount when liquid is injected into the liquid storage cavity 11. Thus, by setting the highest liquid level indication mark 1624, excessive washing liquid can be prevented from being filled into the liquid storage cavity 11, and the liquid storage cavity 11 can be ensured not to leak liquid due to overfilling of the washing liquid no matter in a vertical or horizontal state.

Specifically, the highest liquid level indicator 1624 is a highest liquid level baffle. Thus, the recognition degree and the prompting effect can be improved. Of course, the highest level indication mark 1624 may be provided in other forms such as a mark or a scale.

Further, in the horizontal state, the highest liquid level indication mark 1624 is located lower than the communication hole 2171 to prevent the washing liquid from flowing out of the communication hole 2171 when the highest liquid level is reached.

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

Specifically, the annular seal groove 1625 is disposed on the circumferential side of the delivery groove 1621.

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

Further, as shown in fig. 4 and 5, the dispensing device 100 further includes an illumination lamp 50, and the illumination lamp 50 is disposed in the liquid storage chamber 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 indication 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 raised boss 1622.

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

Therefore, by arranging the detection device, whether the cover body 22 is covered or not can be detected, so that the bowl washing can be started under the state that the cover body 22 is opened, and dirty water of the bowl washing can be prevented from entering the liquid storage cavity 11.

In particular, the detection means comprise a sensor, optionally a pressure sensor or the like. Alternatively, the detecting means includes a tact switch, which is turned on after the cover 22 is closed to signal that the cover 22 is closed.

Specifically, the dispensing device 100 further includes an alarm, which alarms when the cover 22 is not covered and activates the dishwasher, that is, the controller is configured to control the alarm to alarm when a dishwasher activation signal is received but no cover 22 is covered.

Further, as shown in fig. 5 and 14, the dispensing device 100 further includes a one-way valve 60, where the one-way valve 60 is disposed at the dispensing port 2194, and the one-way valve 60 is used for unidirectional delivering the washing liquid in the dispensing flow channel 218. Thus, the washing water is prevented from entering the pouring passage 218 from the pouring port 2194.

It should be noted that, as can be seen from the above description, the dispensing device 100 according to the present invention is improved in different aspects of the dispensing device 100, such as the detection of the remaining amount of the washing liquid in the liquid storage chamber 11, the discharge mode of the washing liquid in the liquid storage chamber 11, the drawing mode of the washing liquid in the liquid storage chamber 11, the cleaning mode of the dispensing head 20, and the communication mode between the dispensing head 20 and the atmosphere. It will be appreciated that in various other embodiments of the present invention, the above aspects may be modified separately, for example, modification may be made in discharging the washing liquid from the liquid storage chamber 11 (in this case, the liquid level detecting chamber 12 may be provided in the liquid storage cartridge 10 or the liquid level detecting chamber 12 may not be provided), etc.; improvements may also be made in at least two of the above aspects, such as improvements may be made in common in more relevant aspects.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A delivery device for a dishwasher, the delivery device comprising:

2. The dispensing device of claim 1, wherein the communication hole is provided at a convex lower portion of the seal ring.

3. The dispensing device of claim 1, wherein a sealing ring groove is provided on an inner side surface of the cover body, the sealing ring is convexly arranged in the sealing ring groove, and a bottom of the sealing ring groove is convexly abutted with the sealing ring to seal the exposing opening.

4. A dispensing device according to claim 3, wherein the inner side of the cover body is provided with two annular stop protrusions arranged opposite to each other, and the sealing ring groove is formed between the two annular stop protrusions.

5. The dispensing device of claim 4, wherein the communication hole is located in the seal ring groove, and a vent gap communicating with the communication hole is provided between the annular stopper protrusion and the seal ring protrusion.

6. A dispensing device according to claim 3, further comprising an annular seal disposed between the bottom of the seal ring groove and the seal ring boss.

7. The dispensing device according to any one of claims 1 to 6, wherein the sealing ring is provided with a vent notch, and the vent notch and the cover enclose a communication hole.

8. A dispensing device according to any one of claims 1 to 6, wherein the communication aperture is located remotely from the filling port.

9. The dispensing device of any one of claims 1 to 6, wherein the cover closes the notch of the flushing groove, a flushing cavity in annular distribution is formed between the sealing ring protrusion and the side wall of the flushing groove, and a plurality of flushing ports communicated with the flushing cavity are formed in the dispensing head.

10. The dispensing device according to any one of claims 1 to 6, wherein the liquid storage box is further provided with a liquid feeding port communicated with the liquid storage cavity, the base is provided with a dispensing flow passage, one end of the dispensing flow passage is communicated with the liquid feeding port, and the other end of the dispensing flow passage forms a dispensing port;

11. A dishwasher, the dishwasher comprising:

A dispensing device as claimed in any one of claims 1 to 10, mounted to the door.