CN217772264U - Spraying cover and dish washing machine - Google Patents

Abstract

The utility model discloses a spray lid, filtration system and dish washer, wherein spray the lid and be used for the dish washer, the dish washer includes around spraying the cylinder filter screen that the lid set up, sprays the top that the cylinder filter screen was located to the lid, sprays the apopore that the lid has the inlet opening, reaches the intercommunication inlet opening. The technical scheme of the utility model aim at reducing the frequency that the user washd the filter screen.

Description

Spraying cover and dish washing machine

Technical Field

The utility model relates to a dish washer technical field, in particular to spray lid and dish washer.

Background

Dish washer can be used to wash the residue on the tableware, and the residue on the tableware breaks away from the back and flows to the filter screen along with rivers, and the part residue can be attached to on the filter screen under the filtering action of filter screen, and adnexed residue is long-pending few many on the filter screen, and the user need regularly clear up the filter screen, however, the frequency that present user washd the filter screen is higher, and user experience is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spray cover aims at reducing the frequency that the user washd the filter screen.

In order to achieve the above object, the utility model provides a spray lid is used for dish washer, dish washer is including winding the cylinder filter screen that the spray lid set up, the spray lid is located the top of cylinder filter screen, the spray lid has the inlet opening, reaches the intercommunication the apopore of inlet opening.

Optionally, the spray cap has an axis of rotation, and the vector of the direction of orientation of the outlet apertures has a component tangential to the circumferential direction of the axis of rotation.

Optionally, the spray cover includes a housing and a water guide portion disposed on an outer surface of the housing, the housing has a communication opening communicating the water inlet hole and the water outlet hole, the water guide portion and the housing limit a first water guiding groove communicating the communication opening, and the water outlet hole is a notch of the first water guiding groove.

Optionally, a side wall of the first water chute opposite to the communication port blocks part of the communication port.

Optionally, the water outlet hole is provided in plurality.

Optionally, the spraying cover is further provided with a water storage cavity communicated with the water inlet hole and the plurality of water outlet holes.

Optionally, the water storage cavity has a first cavity wall provided with the water inlet, and the first cavity wall is provided with a second water chute extending from the water inlet to the water outlet.

Optionally, the spraying cover includes a substrate provided with the water inlet and a cover covering the substrate, the cover is provided with the water outlet, the substrate and the cover limit the water storage cavity, and a distance between the substrate and the cover gradually decreases from the water inlet to the periphery of the substrate.

Optionally, the periphery of the water inlet hole is provided with a mounting convex part in a protruding manner along the axial direction of the water inlet hole.

The utility model also provides a filtration system, this filtration system includes:

the water cup is provided with a water return cavity;

the aforementioned spray cap;

the filter structure comprises a cylindrical filter screen arranged around the spray cover, and the cylindrical filter screen is arranged in the water return cavity and below the spray cover; and

and the water supply device is communicated with the water inlet hole of the spraying cover.

Optionally, the filtration still includes the column support, the column support including supply the column support body that the cylinder filter screen cover was established and connect in the rotation axis of column support body, rotation axis one end rotate connect in the drinking cup.

Optionally, the other end of the rotating shaft is connected to the spraying cover, the rotating shaft is provided with a water passing channel which penetrates along the axis direction of the rotating shaft, one end of the water passing channel is communicated with the water supply device, and the other end of the water passing channel is communicated with the water inlet hole.

Optionally, the rotating shaft is integrally formed with the cylindrical stent body.

Optionally, the cylindrical support body is provided with a fixing hole for interference fit of the rotating shaft.

The utility model also provides a dish washer, this dish washer includes:

a dishwasher body; and

the filtration system described above.

In the technical scheme of the utility model, the spraying cover is arranged above the cylindrical surface filter screen, which is beneficial to separating the residue and preventing the residue from directly dropping into the cylindrical surface filter screen, thereby preventing the larger residue from blocking the meshes of the cylindrical surface filter screen, enabling the smaller residue to smoothly pass through the meshes, reducing the amount of the residue accumulated on the filter screen and reducing the frequency for cleaning the cylindrical surface filter screen; in addition, the box that sprays can be with originally dashing through the residue of mesh on attaching to the net twine of cylinder filter screen from apopore spun water to make it pass through the mesh, reduce the amount that the residue gathered on the filter screen, reduce the frequency of wasing the cylinder filter screen.

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 embodiments or the prior art descriptions 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 top view of a part of the structure of the air conditioner of the present invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is an overall view of the spray cap, cylindrical screen and cylindrical support of FIG. 3;

FIG. 6 is an overall view of the spray cap and cylindrical support of FIG. 5;

fig. 7 is a schematic structural view of the spray cover in fig. 6.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Water cup	230	Mounting boss
100a	Water return cavity	310	Cylindrical filter screen
				200	Spray cover	320	Columnar support
200a	Water inlet hole	321	Columnar support body
				200b	Water outlet		322	Rotating shaft
200c	Communication port		322a						Water passage
				200d	Water storage cavity	330	Plane filter screen
210	Shell body	340	Lifting cup
				211	Substrate	400	Water supply device
211a	Second water chute	410	Washing pump
				212	Shell cover	420	Spray pipe
220	Water guide part

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

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture, the motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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

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

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The time of washing the dishes occupies the more time of people, in order to liberate the time of washing the dishes, use this time to more meaningful thing, the dish washer should be born, the residue on the dish washer can be used to wash the tableware, follow rivers after the residue on the tableware breaks away from and flow to the filter screen, the part residue can be attached to on the filter screen under the filtering action of filter screen, adnexed residue is amasss to a short time on the filter screen, the user needs regularly to clear up the filter screen, however, the frequency that present user washd the filter screen is higher, user experience is relatively poor. Therefore, the utility model provides a dish washing machine. It can be understood that the dishwasher can not only wash dishes but also wash chopsticks, dishes, knives, forks and other tableware.

Referring to fig. 1, 2, 3 and 7, in an embodiment of the present invention, the dishwasher includes: a dishwasher body and a filter system, it being understood that the filter system is used to filter debris that has fallen on the dishware. Specifically, the dishwasher body is provided with a washing chamber in which tableware can be placed for washing, the filtering system includes a water cup 100, a spray cover 200, a filtering structure and a water supply device 400, the water cup 100 is provided with a water return chamber 100a for receiving water flow from the washing chamber, it can be understood that, the water flow is usually accompanied by residue, the water flow needs to be filtered before entering the water return cavity 100a, the filtering structure is arranged in the water return cavity 100a, the filtering structure comprises a cylindrical filtering net 310 for filtering, under the action of the cylindrical screen 310, the water flow between the wall of the water return chamber 100a and the cylindrical screen 310 is accompanied by the residue, the residue is also small and does not cause blockage to a water circulation system or a drainage system of the dishwasher body, the cylindrical screen 310 has a mesh line and mesh holes defined by the mesh line, some residue that can pass through the mesh holes may be attached to the mesh line, the cylindrical screen 310 is disposed around the spray cover 200 to facilitate washing of the mesh line of the screen by water sprayed from the water outlet holes 200b of the spray cover 200 to flush the residue out of the mesh holes, thereby reducing the residue attached to the cylindrical surface filter screen 310, reducing the frequency of cleaning the cylindrical surface filter screen 310 by a user, improving the user experience, wherein the cylindrical surface filter screen 310 is provided with a filter cavity which is provided with an upward opening, the spray cover 200 is arranged above the cylindrical surface filter screen 310 to be beneficial to separating the residue, preventing the residue from directly falling into the cylindrical surface filter screen 310, thereby avoid great residue to block up the mesh of cylinder filter screen 310 for less residue can pass through the mesh smoothly, reduces the quantity that the residue is gathered on the filter screen, reduces the frequency of clearing up cylinder filter screen 310, has improved user experience, need not to be repeated be, and water supply installation 400 is used for supplying water for spraying lid 200, and water supply installation 400 communicates the inlet opening 200a that sprays lid 200.

In an embodiment, referring to fig. 4 to 6 together, the filtering structure further includes a cylindrical bracket 320, the cylindrical bracket 320 includes a cylindrical bracket body 321 for the cylindrical filter net 310 to be sleeved on, and a rotating shaft 322 connected to the cylindrical bracket body 321, one end of the rotating shaft 322 is rotatably connected to the water cup 100, specifically, the cylindrical bracket body 321 is used for the cylindrical filter net 310 to be installed, so that the shape of the cylindrical filter net 310 is kept stable, the cylindrical bracket body 321 rotates relative to the water cup 100 through the rotating shaft 322 to drive the cylindrical filter net 310 and water in the water cup 100 to move relatively, so that residues attached to the cylindrical filter net 310 fall off, thereby reducing the frequency of cleaning the cylindrical filter net 310 and improving user experience;

however, the design is not limited thereto, in other embodiments, one end of the rotating shaft 322 is fixed to the cup 100, and the cylindrical bracket body 321 and the rotating shaft 322 rotate relatively to drive the filter screen and the water in the cup 100 to move relatively, but of course, the cylindrical bracket body 321 and the rotating shaft 322 may rotate relatively and one end of the rotating shaft 322 is rotatably connected to the cup 100.

Further, in an embodiment, the other end of the rotating shaft 322 is connected to the spraying cover 200, the rotating shaft 322 is provided with a water passing channel 322a penetrating along the axial direction of the rotating shaft 322, one end of the water passing channel 322a is communicated with the water supply device 400, and the other end is communicated with the water inlet hole 200a, it can be understood that water provided by the water supply device 400 is conveyed into the spraying cover 200 through the water passing channel 322a, and additional pipelines are avoided from being arranged to communicate with the spraying cover 200 and the water supply device 400, which is beneficial to miniaturization of the filtering system, the rotating shaft 322 supplies water to the spraying cover 200 in addition to rotating the columnar bracket 320, greatly enriches the functions of the rotating shaft 322, and worth mentioning, the water supply device 400 comprises a washing pump 410 and a spraying pipe 420, the bottom of the water returning cavity 100a is provided with a water receiving hole, one end of the spraying pipe 420 is communicated with the washing pump 410, the other end is communicated with the water receiving hole, and the water receiving hole is also communicated with one end of the rotating shaft 322 close to the water receiving hole, so that the water supply device 400 supplies water to the spraying cover 200;

of course, in other embodiments, if the rotating shaft 322 needs to maintain a high structural strength, a pipeline may be added to connect the water supply device 400 and the shower cover 200.

There are various connection manners of the rotating shaft 322 and the cylindrical bracket body 321, in an embodiment, the rotating shaft 322 and the cylindrical bracket body 321 are integrally formed, so that the assembling processes of the rotating shaft 322 and the bracket body are reduced, for example, the rotating shaft 322 and the bracket body can be integrally formed by injection molding; however, the design is not limited thereto, and in other embodiments, in view of reducing the manufacturing difficulty of the cylindrical bracket 320, in other embodiments, both the cylindrical bracket body 321 and the rotating shaft 322 may be provided as separate components and then connected together in an assembling manner, for example, the cylindrical bracket body 321 is provided with a fixing hole for interference fit of the rotating shaft 322, so that the rotating shaft 322 and the cylindrical bracket body 321 are tightly fitted together; alternatively, the cylindrical bracket body 321 and the rotating shaft 322 may be provided with engaging structures, such as a buckle portion, which are engaged with each other; for another example, the columnar holder body 321 and the rotation shaft 322 are connected by a screw or the like. Of course, in another embodiment, the cylindrical bracket body 321 and the rotating shaft 322 may be connected by welding to improve the structural strength of the cylindrical bracket 320, and of course, the cylindrical bracket body 321 and the rotating shaft 322 may be connected by bonding in consideration of the manufacturing cost of the cylindrical bracket 320.

Specifically, in one embodiment, the pillar-shaped support 320 includes an upper ring frame, a lower ring frame parallel to the upper ring frame, and a plurality of support rods connecting the upper ring frame and the lower ring frame, the plurality of support rods are spaced along the axial direction of the upper ring frame, and the plurality of support rods are parallel to each other. Of course, in an embodiment, the upper ring frame and/or the lower ring frame is provided with a connecting portion, and the connecting portion is provided with a fixing hole.

It can be understood that the spray cover 200 plays a very important role in the filtering system in addition to the filtering structure, and the spray cover 200 drops the residue attached to the cylindrical surface filter screen 310, thereby reducing the frequency of cleaning the cylindrical surface filter screen 310 and improving the user experience; the spraying cover 200 is provided with a water inlet 200a and a water outlet 200b communicated with the water inlet 200a, in one embodiment, the spraying cover 200 is provided with a rotation axis, and a vector of the orientation direction of the water outlet 200b has a component tangential to the circumferential direction of the rotation axis, specifically, the spraying cover 200 is connected to a rotation shaft 322 of a cylindrical bracket 320, the rotation axis is also the axis of the rotation shaft 322, the water velocity of water sprayed by the water outlet 200b has a component velocity perpendicular to the rotation axis to drive the rotation shaft 322 to rotate, so that the cylindrical filter screen 310 arranged on the cylindrical bracket body 321 is provided with power for moving relative to water in the water cup 100, thus, residues on the cylindrical filter screen 310 can be driven by water in the water cup 100, so as to reduce the residues attached to the cylindrical filter screen 310, and it can be understood that the spraying cover 200, the cylindrical bracket 320 and the cylindrical filter screen 310 rotate as a whole, water sprayed by the spraying cover 200 provides rotating power for the whole, and in the process of rotating, water sprayed by the spraying cover 200 can also pass through meshes on the water return water chamber wall 310 of the cylindrical filter screen 100a to reduce the cost of a dishwasher, thereby reducing the cost for cleaning the residues attached to clean the water chamber 100 attached to a user;

of course, in other embodiments, the direction of the outlet hole 200b is parallel to the rotation axis, and faces the filter cavity defined by the cylindrical filter screen 310, so that the water flow speed in the filter cavity can be increased, the water in the filter cavity is changed to the turbulent flow state, and under the impact of the water flow in the turbulent flow state, the residue attached to the mesh wire of the cylindrical filter screen 310 is washed away by the water flow, so as to be separated from the cylindrical filter screen 310, thereby reducing the frequency of cleaning the filter screen by the user, and greatly improving the user experience.

It should be noted that, in other embodiments, a motor may also be used to provide a power source for the spraying cover 200, the motor is connected to the spraying cover 200 in a driving manner, and in addition, another motor may also provide a power source for the column bracket 320.

In an embodiment, the spray cover 200 further includes a housing 210 and a water guide portion 220 disposed on an outer surface of the housing 210, the housing 210 has a communication port 200c communicating the water inlet hole 200a and the water outlet hole 200b, the water guide portion 220 and the housing 210 limit a first water guide channel communicating the communication port 200c, and the water outlet hole 200b is a notch of the first water guide channel, so that a water flow direction of water flowing through the communication port 200c is changed by a guiding function of the first water guide channel, it is worth mentioning that the water guide portion 220 and the housing 210 may be manufactured separately, and the water guide portion 220 and the housing 210 may be connected by bonding, welding, and the like, so that the manufacture of the spray cover 200 is simplified, and the water guide portion 220 may be added to an old version of the spray cover 200 to obtain a new version of the spray cover 200, thereby reducing a development cost of the spray cover 200.

Further, in an embodiment, a side wall of the first water chute opposite to the communication port 200c shields a portion of the communication port 200c, and specifically, the water in the spray cover 200 flows out from the openings defined by the communication port 200c and the water outlet hole 200b, so that on one hand, the speed of the sprayed water has a component perpendicular to the rotation axis, and on the other hand, the spraying range of the spray cover 200 is increased, so that more residues attached to the cylindrical screen 310 are sprayed, and the residues are separated from the cylindrical screen 310. Of course, in other embodiments, the tank side wall of the first water guide tank opposite to the communication port 200c completely shields the communication port 200c to ensure a large rotation speed of the shower cover 200.

In one embodiment, the plurality of water outlet holes 200b are provided, and the plurality of water outlet holes 200b is beneficial to increase the cleaning range, so that more residues attached to the cylindrical screen 310 are sprayed, and the residues are further promoted to be separated from the cylindrical screen 310. Specifically, the sum vector of the directions of the water outlet holes 200b has a component perpendicular to the rotation axis, but in other embodiments, the directions of the water outlet holes 200b are parallel to the rotation axis.

Further, the lid 200 that sprays still has the intercommunication inlet opening 200a and a plurality of apopore 200 b's water storage chamber 200d, particularly speaking, the water that comes from inlet opening 200a can be full of water storage chamber 200d, and the water in the water storage chamber 200d is from apopore 200b blowout, and water storage chamber 200d provides the retaining space, is favorable to guaranteeing that apopore 200 b's rivers can share the blowout, and when next start-up sprays lid 200, because there is water in the water storage chamber 200d, water can be stood the horse and spout apopore 200b, very rapidly. However, the design is not limited thereto, and a plurality of water inlets 200a are provided, and one water inlet 200a is disposed corresponding to one water outlet 200 b.

Further, in order to accelerate the water of the water inlet 200a to be sprayed out of the water outlet 200b, in an embodiment, the water storage cavity 200d has a first cavity wall provided with the water inlet 200a, the first cavity wall is provided with a second water guiding groove 211a extending from the water inlet 200a to the corresponding water outlet 200b, the water entering the water storage cavity 200d from the water inlet 200a under the guidance of the second water guiding groove 211a can be quickly sprayed out of the water outlet 200b, specifically, the second water guiding grooves 211a are provided in plurality, one end of each of the second water guiding grooves 211a is connected and communicated with the water inlet 200a, and the water is scattered from the water inlet 200a to the corresponding water outlet 200 b.

In one embodiment, the spray cap 200 includes a base 211 having the water inlet 200a and a cap 212 covering the base 211, the cap 212 has the water outlet 200b, the base 211 and the cap 212 limit the water storage cavity 200d, and a distance between the base 211 and the cap 212 gradually decreases from the water inlet 200a toward a periphery of the base 211, specifically, water entering from the water inlet 200a flows into the water outlet 200b along an inner wall surface of the cap 212 after being sprayed to the cap 212, so as to accelerate the water to be sprayed from the water outlet 200 b. Specifically, the housing 210 includes a base plate 211 and a housing cover 212. Of course, in other embodiments, the cover 212 has an inner wall surface that is parallel to the base plate 211.

In an embodiment, the inner wall surface of the housing cover 212 is an arc surface, which is beneficial to reducing the resistance of water flowing on the inner wall of the housing cover 212, the arc surface may be a spherical arc surface, an ellipsoidal arc surface, or even an irregular arc surface, as long as the arc surface satisfies that the distance between the substrate 211 and the housing cover 212 is gradually reduced from the water inlet 200a to the peripheral direction of the substrate 211, and certainly, in other embodiments, the inner wall of the housing cover 212 encloses a pyramid-shaped space, such as a triangular prism, a rectangular pyramid, and the like.

In one embodiment, the connection between the cover 212 and the base 211 is smooth to reduce the flow resistance of water in the water storage cavity 200 d.

It is worth mentioning, the shell cover 212 and the base plate 211 integrated into one piece set up, be favorable to reducing the assembly process that sprays the lid, integrated into one piece's mode has a plurality ofly, for example shell cover 212 and base plate 211 can be through the mode integrated into one piece of blow molding, of course, in other embodiments, shell cover 212 and base plate 211 can also set up to solitary component, link together through the mode of mutual assembly, thus, the processing degree of difficulty that forms water storage chamber 200d has been reduced, reduce the research and development cost, of course, except the mode of assembly, shell cover 212 and base plate 211 can also link together through modes such as welding, thus, can eliminate the joint gap between shell cover 212 and the base plate 211 basically, guarantee that water all discharges from apopore 200b, improved the utilization ratio of spraying lid 200 to water.

As shown in fig. 7, it can be seen that the outer surface of the housing cover 212 has connecting traces, in one embodiment, in order to reduce the manufacturing difficulty of the housing cover 212, a plurality of connecting portions are divided from the center of the housing cover 212 toward the periphery of the housing cover 212, and the plurality of connecting portions are sequentially connected around the center to form the housing cover 212, which greatly reduces the processing difficulty of the housing cover 212, and of course, in other embodiments, the housing cover 212 may also be integrally formed to reduce the manufacturing processes of the housing cover 212, for example, by injection molding.

In an embodiment, the periphery of the water inlet hole 200a is provided with a mounting protrusion 230 protruding along the axial direction of the water inlet hole 200a, specifically, the mounting protrusion 230 is used for the rotation shaft 322 to pass through so as to conduct the water supply device 400 and the water inlet hole 200a, and the mounting protrusion 230 can enable the spray cover 200 and the rotation shaft 322 to be stably connected.

In order to improve the function of the filtering system, in an embodiment, the filtering structure further includes a planar filtering net 330 having a mounting hole and a carrying cup 340 disposed in the mounting hole, the water return cavity 100a of the water cup 100 has a water return opening facing upward, the planar filtering net 330 covers the water return opening, the mounting hole is communicated with the filtering cavity of the cylindrical filtering net 310, and the carrying cup 340 includes a filtering portion for filtering the residue to prevent the residue from entering the filtering cavity, thereby realizing the preliminary filtering.

The above is only the optional embodiment of the present invention, and not limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the attached drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (15)

1. The utility model provides a spray the lid for dishwasher, dishwasher includes around spray the cylinder filter screen that the lid set up, spray the lid and locate the top of cylinder filter screen, its characterized in that, spray the lid and have the inlet opening, and communicate the apopore of inlet opening.

2. The spray cap of claim 1, wherein the spray cap has an axis of rotation, and wherein the vector of the direction of orientation of the outlet apertures has a component in a circumferential direction that is tangential to the axis of rotation.

3. The spray cap according to claim 2, wherein the spray cap comprises a housing and a water guide portion disposed on an outer surface of the housing, the housing has a communication opening for communicating the water inlet hole and the water outlet hole, the water guide portion and the housing define a first water guide channel communicated with the communication opening, and the water outlet hole is a notch of the first water guide channel.

4. The shower cover according to claim 3, wherein a side wall of the first water guide groove opposite to the communication port blocks a portion of the communication port.

5. The spray cap of claim 1, wherein the outlet hole is provided in plurality.

6. The spray cap of claim 5, further comprising a water storage chamber communicating the water inlet opening and the plurality of water outlet openings.

7. The spray cap of claim 6, wherein the water storage chamber has a first chamber wall provided with the water inlet hole, and the first chamber wall is provided with a second water guide channel extending from the water inlet hole toward the corresponding water outlet hole.

8. The spray cap of claim 6, wherein the spray cap comprises a base plate having the inlet opening and a cap covering the base plate, the cap defining the outlet opening, the base plate and the cap defining the reservoir cavity, the distance between the base plate and the cap decreasing from the inlet opening toward the periphery of the base plate.

9. The spray cap of claim 1, wherein the periphery of the inlet opening is provided with a mounting protrusion protruding in the axial direction of the inlet opening.

10. A filtration system, comprising:

the water cup is provided with a water return cavity;

the spray cap of any of claims 1 to 9;

the filter structure comprises a cylindrical filter screen arranged around the spray cover, and the cylindrical filter screen is arranged in the water return cavity and below the spray cover; and

and the water supply device is communicated with the water inlet hole of the spraying cover.

11. The filtration system of claim 10, wherein the filter structure further comprises a cylindrical support, the cylindrical support comprises a cylindrical support body for the cylindrical filter screen to be sleeved on, and a rotating shaft connected to the cylindrical support body, and one end of the rotating shaft is rotatably connected to the water cup.

12. The filtering system as claimed in claim 11, wherein the other end of the rotary shaft is connected to the shower cover, the rotary shaft is provided with a water passage penetrating in the axial direction of the rotary shaft, one end of the water passage is communicated with the water supply device, and the other end is communicated with the water inlet hole.

13. The filtration system of claim 11, wherein the rotating shaft is integrally formed with the cylindrical stent body.

14. The filtration system of claim 11, wherein the cylindrical stent body is provided with a fixation hole for interference fit of the rotating shaft.

15. A dishwasher, comprising:

a dishwasher body; and

a filtration system as claimed in any one of claims 10 to 14.

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