CN220658478U

CN220658478U - Household appliance

Info

Publication number: CN220658478U
Application number: CN202321942631.6U
Authority: CN
Inventors: 王仁华; 郑永波; 刘文涛
Original assignee: Hisense Home Appliances Group Co Ltd; Hisense Shandong Kitchen and Bathroom Co Ltd
Current assignee: Hisense Home Appliances Group Co Ltd; Hisense Shandong Kitchen and Bathroom Co Ltd
Priority date: 2023-06-20
Filing date: 2023-07-21
Publication date: 2024-03-26
Anticipated expiration: 2033-07-21
Also published as: CN220937973U; CN220675936U; CN220695204U; CN220695203U; CN220917369U; CN220635484U; CN220695205U; CN220695202U

Abstract

The present utility model relates to a household appliance comprising: a case; an inner cavity is arranged in the box body; the spray head is arranged in the inner cavity; the shower nozzle includes: the water injection pipe is arranged on the top wall of the inner cavity, a nozzle is formed at one end of the water injection pipe, and the other end of the water injection pipe is used for being connected with a water source; the water distribution plates are arranged at intervals at the water outlet end of the water injection pipe and are oppositely arranged at intervals with the nozzles; the water injection pipe can spray water to the water distribution plate through the nozzle to spray by the week side edge of water distribution plate to the inner wall of inner chamber on, need not external power, can change the power of water into the spraying force, produce the effect of evenly spraying, make the hydroenergy evenly spray to each inner wall of cavity on, and then improve the clean effect to the inner wall of inner chamber.

Description

Household appliance

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a household appliance.

Background

With the development of technology, household appliances such as ovens and dish washers are becoming more popular. With the improvement of living standard, the performance requirements of people on household appliances such as ovens, dish washers and the like are also higher and higher.

At present, in some related household appliances, the cleaning mode of the oil stain on the inner wall of a cavity of the household appliance generally comprises high-temperature cleaning and steam cleaning, wherein the steam cleaning is auxiliary cleaning and only can clean light oil stain; the sealing material in the household appliances such as the oven, the dish washer and the like has 280 ℃ at the highest temperature resistance, and the temperature of the whole cavity is about 450 ℃ in a high-temperature self-cleaning mode, so that the high-temperature cleaning cannot be used generally, and the inner wall of the cavity of the household appliance is difficult to clean. Some parts also adopt the clear scheme of water, set up the shower nozzle on the inner wall of cavity, but the structural design of shower nozzle can not spray water evenly to the inner wall of cavity well on, therefore clean effect is not ideal enough.

Disclosure of Invention

The utility model aims to provide a household appliance, so as to optimize the structure of a spray head of the household appliance in the related technology and improve the cleaning effect.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a home appliance including: a case forming a housing outside the home appliance; an inner cavity is arranged in the box body; the spray head is arranged in the inner cavity; the spray head comprises: the water injection pipe is arranged in the inner cavity, a nozzle is formed at one end of the water injection pipe, and the other end of the water injection pipe is used for being connected with a water source; the water distribution discs are arranged at intervals at the water outlet end of the water injection pipe, and are oppositely arranged at intervals with the nozzles; the water injection pipe can spray water to the water distribution disc through the nozzle, and the water is sprayed to the inner wall of the inner cavity through the peripheral edge of the water distribution disc.

In some embodiments of the present application, a water injection cavity is formed in the water injection pipe, and the bottom end of the water injection cavity is communicated with the nozzle; a shrinkage part is formed between the water injection cavity and the nozzle, and the caliber of the water injection cavity is larger than that of the nozzle; the aperture of the necking part gradually decreases in the direction from the water injection cavity to the nozzle.

In some embodiments of the present application, a water guide column protruding toward the nozzle is convexly arranged at the center of the top surface of the water distribution disc, and the nozzle and the water guide column are oppositely arranged at intervals; the water sprayed from the nozzle can be guided to the periphery of the water distribution disc through the water guide column so as to be sprayed to the inner wall of the inner cavity through the periphery of the water distribution disc.

In some embodiments of the present application, the water distribution plate is circular, and a water distribution groove with a concave center is formed in the top surface of the water distribution plate; the water guide column protrudes upwards from the center of the bottom surface of the water diversion channel, is conical, and gradually reduces in diameter in the direction towards the nozzle; the water sprayed from the nozzle is guided into the water diversion groove through the water guide column and sprayed to the inner wall of the inner cavity along the peripheral edge of the water diversion groove.

In some embodiments of the present application, a water guiding rib is arranged on the peripheral wall of the water distribution disc, and the water guiding rib extends outwards in a radial direction and is arranged obliquely upwards; the water guide ribs are arranged in a plurality, and the water guide ribs are circumferentially arranged around the periphery of the water distribution disc at intervals.

In some embodiments of the present application, the spray head further includes a sleeve, the sleeve is disposed in the inner cavity, the sleeve is detachably sleeved on the periphery of the water injection pipe, and the nozzle is exposed at the bottom end of the sleeve; the bottom end of the sleeve is fixedly connected with the water diversion disk so as to arrange the water diversion disk below the nozzle at intervals.

In some embodiments of the present application, the outer periphery of the water injection pipe is provided with external threads, the inner wall of the sleeve is provided with internal threads, and the sleeve threads are sleeved on the outer periphery of the water injection pipe.

In some embodiments of the present application, a water guide column protruding toward the nozzle is convexly arranged at the center of the top surface of the water distribution disc, and the nozzle and the water guide column are oppositely arranged at intervals; the spray head also comprises a connecting arm arranged between the sleeve and the water distribution disc; the top of the connecting arm is connected with the bottom of the sleeve, and the bottom of the connecting arm is connected with the water guide column.

In some embodiments of the present application, the connecting arms are provided in a plurality, and the plurality of connecting arms are circumferentially uniformly spaced around the periphery of the water guide column.

In some embodiments of the present application, the top surface of the water distribution disc is convexly provided with water guide protrusions extending upwards, and the water guide protrusions are arranged at intervals on the periphery of the water guide column; the guide surface is formed on one side of the water guide protrusion facing the water guide column, and the guide surface is obliquely and upwards arranged in an extending manner in the radial outward direction of the water distribution disc.

In some embodiments of the present application, the water guiding protrusions are provided in a plurality, and the plurality of water guiding protrusions are circumferentially uniformly spaced around the periphery of the water guiding column.

In some embodiments of the present application, the top end of the water injection pipe is detachably connected to the top wall of the inner cavity, and the top end of the water injection pipe protrudes out of the outer wall of the inner cavity.

The embodiment of the utility model has the following advantages and positive effects:

in the household appliance provided by the embodiment of the utility model, a spray head is arranged in an inner cavity, the spray head comprises a water injection pipe and a water distribution disc, the spray head is fixed on the top wall of the inner cavity by using the water injection pipe, one end of the water injection pipe forms a spray nozzle, and the other end of the water injection pipe is connected with a water source; the water distribution plate is arranged at the water outlet end of the water injection pipe at intervals, and the water distribution plate and the nozzles are arranged at intervals in a relative mode, so that water can be sprayed into the water distribution plate through the nozzles of the water injection pipe, the water is sprayed onto the inner wall of the inner cavity through the peripheral side edges of the water distribution plate, external power is not needed, the power of the water can be converted into spraying force, an even spraying effect is generated, the water can be evenly sprayed onto all the inner walls of the cavity, and then the cleaning effect on the inner wall of the inner cavity is improved.

Drawings

Fig. 1 is a schematic view of a structure of a home appliance according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a part of the structure of the inside of fig. 1.

Fig. 3 is a schematic view of the top wall of the liner and the nozzle in fig. 2.

Fig. 4 is a cross-sectional view taken along A-A in fig. 3.

Fig. 5 is an enlarged schematic view of the area B in fig. 4.

Fig. 6 is a schematic view of the structure of the shower head of fig. 5.

Fig. 7 is an exploded view of fig. 6.

Fig. 8 is a front view of fig. 6.

Fig. 9 is a side view of fig. 8.

Fig. 10 is a cross-sectional view taken along line C-C in fig. 9.

The reference numerals are explained as follows: 1. a case; 10. an inner cavity; 11. an inner container; 12. a door; 13. a door frame; 131. a door seal; 2. a spray head; 21. a water injection pipe; 211. a nozzle; 212. a water injection cavity; 213. a pinch portion; 214. an external thread; 215. a limit groove; 22. a water distribution plate; 220. a water diversion trench; 221. a water guide column; 222. a water guide rib; 223. a water guiding protrusion; 2231. a guide surface; 23. a sleeve; 231. an internal thread; 24. and a connecting arm.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Fig. 1 is a schematic view of a structure of a home appliance according to an embodiment of the present utility model. Fig. 2 is a schematic view of a part of the structure of the inside of fig. 1.

Referring to fig. 1 to 2, a household appliance according to an embodiment of the present utility model mainly includes a case 1 and a nozzle 2 disposed in the case 1. The respective structures of the home appliances will be described below using an oven as an example.

Wherein, the box body 1 is constructed as a shell of the household appliance, and the box body 1 is in a rectangular hollow structure. In other embodiments, the case 1 may also have a housing structure with other shapes, and the specific shape of the case 1 may be adjusted according to the need, which is not limited herein.

An inner cavity 10 is formed in the case 1, and the inner cavity 10 can be used for high-temperature cooking treatment such as steaming and baking of food. It should be noted that in other embodiments, the inner cavity 10 may be used as a functional cavity. For example, when the household appliance is a dishwasher, the interior chamber 10 may be used to perform a cleaning process on dishes, e.g., bowls, plates, etc. When the household appliance is a disinfection cabinet, the inner cavity 10 can be used for disinfecting tableware such as bowls, dishes and the like.

Referring to fig. 2, a container 11 is disposed in the case 1, and an inner cavity 10 is formed in the container 11. The front end of the inner container 11 is provided with an opening, and the front end opening of the inner container 11 is communicated with the inner cavity 10.

In some embodiments, the front side wall of the case 1 is provided with an opening, and the front opening of the case 1 is disposed opposite to the front opening of the inner cavity 10 of the liner 11. Therefore, the food material to be cooked can be put into the inner cavity 10 through the front opening of the case 1 for high temperature cooking treatment. Meanwhile, after cooking is finished, the food material can be taken out from the inner cavity 10 through the front opening of the case 1.

Referring to fig. 1, in some embodiments, a front side of the cabinet 1 is provided with a cabinet door 12. The box door 12 is movably arranged on the front side wall of the box body 1, and the box door 12 can open and close the front side opening of the box body 1, so as to open and close the inner cavity 10.

In some embodiments, the first edge of the door 12 is rotatably coupled to the cabinet 1, i.e., the door 12 is rotatably coupled to the cabinet 1 by its first edge.

In some embodiments, the first edge of the door 12 is provided at its bottom end side, i.e., the bottom end side of the door 12 is rotatably connected to the bottom area of the front end of the cabinet 1.

Referring to fig. 1 and 2, in some embodiments, a door frame 13 is provided on a front side wall of the case 1, and a door 12 is rotatably coupled to the front side of the door frame 13. The front opening of the case 1 is opened in the center of the door frame 13, i.e., the door frame 13 is circumferentially arranged on the periphery of the front opening of the case 1. The front opening of the inner chamber 10 in the inner container 11 is right against the center of the door frame 13, and the door frame 13 is arranged around the periphery of the front opening of the inner container 11. When the door 12 is closed, the peripheral edge of the door 12 is bonded to the front side of the door frame 13, and the gap between the door 12 and the door frame 13 is sealed, thereby closing the inner chamber 10.

In some embodiments, the front side of the opening of the case 1 is provided with a door seal 131, and the door seal 131 is provided in a gap between the peripheral side of the liner 11 and the door frame 13. When the door 12 is closed, the door 12 can abut against the door seal 131, sealing the gap between the door frame 13 and the door 12, and further sealing the front opening of the case 1, that is, the front opening of the inner chamber 10.

In some embodiments, a heating device (not shown) is disposed in the case 1, and the heating device is disposed on a rear sidewall of the inner container 11, and is used to heat air in the inner cavity 10, thereby raising the temperature inside the inner cavity 10.

In some embodiments, a heating fan (not shown in the figure) is disposed at the rear sidewall of the inner cavity 10, and the heating fan is used for generating wind power and delivering hot air generated by the heating device to other areas of the inner cavity 10, so that the inner portion of the inner cavity 10 can be uniformly heated.

It should be noted that, in other embodiments, the heating device may be disposed on the top wall of the inner cavity 10, and heat the inner portion of the inner cavity 10 from the top area of the inner cavity 10.

Fig. 3 is a schematic view of the top wall of the liner 11 and the shower head 2 in fig. 2. Fig. 4 is a cross-sectional view taken along A-A in fig. 3. Fig. 5 is an enlarged schematic view of the area B in fig. 4.

Referring to fig. 2 to 5, the spray head 2 is disposed in the inner cavity 10, and the spray head 2 is used for spraying water or cleaning agent to the inner wall of the inner cavity 10, so as to achieve the self-cleaning function of the inner wall of the inner cavity 10.

Specifically, the top end of the spray head 2 protrudes out of the inner cavity 10 and is exposed to the outer wall of the inner container 11, and the top end of the spray head 2 is used for connecting a water source, wherein the water source can be pure water or a mixture of water and a cleaning agent. The bottom of shower nozzle 2 is located inside inner chamber 10, and the bottom intercommunication inner chamber 10 of shower nozzle 2. Therefore, the spray head 2 can spray water or cleaning agent into the inner wall of the inner cavity 10, thereby realizing the self-cleaning function of the inner wall of the inner cavity 10.

Referring to fig. 5, in some embodiments, the spray head 2 includes a water injection pipe 21 and a water distribution tray 22. The water injection pipe 21 is disposed in the inner cavity 10, and the water injection pipe 21 is disposed on a top wall of the inner cavity 10. One end of the water injection pipe 21 protrudes out of the inner cavity 10 and is exposed outside the inner container 11 so as to be connected with a water source. The other end of the water injection pipe 21 is formed with a nozzle 211, and the nozzle 211 serves as the water outlet end of the water injection pipe 21. Thus, the water injection pipe 21 may spray water into the inner chamber 10 through the nozzle 211.

In some embodiments, the water injection pipe 21 is disposed in an extending manner, and the nozzle 211 is formed at the bottom end of the water injection pipe 21. The water distribution plates 22 are arranged at intervals at the water outlet end of the water injection pipe 21, the water distribution plates 22 are arranged opposite to the nozzles 211 at intervals, and the centers of the water distribution plates 22 are arranged right below the nozzles 211. When the water injection pipe 21 sprays water into the inner cavity 10 through the nozzle 211, the nozzle 211 can spray water to the water distribution plate 22, the water distribution plate 22 can convert the power of the water into spraying force, and then the spraying force is sprayed to each inner wall of the inner cavity 10 through the peripheral edge of the water distribution plate 22, so that the uniform spraying effect is generated, and the cleaning effect on the inner cavity 10 is further improved.

It should be noted that, in other embodiments, the water injection pipe 21 may also be disposed in a downward extending manner, or may be disposed in a downward extending manner in a bent pipe structure.

Referring to fig. 5, in some embodiments, a water injection cavity 212 is formed in the water injection pipe 21, and the bottom end of the water injection cavity 212 is communicated with the nozzle 211. Thus, water outside the interior chamber 10 can flow through the water injection chamber 212 to the nozzle 211 and then be sprayed through the nozzle 211 into the interior chamber 10.

In some embodiments, a constriction 213 is formed between the water injection chamber 212 and the nozzle 211. Wherein the caliber of the water injection cavity 212 is larger than the caliber of the nozzle 211. The top end of the constriction 213 is in smooth contact with the peripheral wall of the water injection chamber 212, and the bottom end of the constriction 213 is in smooth contact with the peripheral wall of the nozzle 211. The aperture of the narrowed opening 213 gradually decreases in a direction from the water injection chamber 212 toward the nozzle 211. Therefore, when the external water source flows to the nozzle 211 through the water injection cavity 212, the water flow can be accelerated at the necking part 213, so that the water pressure sprayed by the nozzle 211 is increased, the spraying force to each inner wall of the inner cavity 10 is further improved, the spraying area and the spraying range are increased, and the cleaning effect to the inner cavity 10 is further improved.

It should be noted that, in other embodiments, the nozzle 211 may be directly formed at a port of the necking portion 213 away from the water injection cavity 212. That is, the axial length of the nozzle 211 is zero at this time, and the bottom end opening of the narrowed portion 213 is used as the nozzle 211.

Referring to fig. 5, in some embodiments, a water guiding column 221 protruding toward the nozzle 211 is protruding from the center of the top surface of the water distribution tray 22, and the nozzle 211 and the water guiding column 221 are disposed opposite to each other at an upper-lower interval. Accordingly, the water injected from the water injection pipe 21 through the nozzle 211 flows toward the water guide 221, is guided to the peripheral side of the water distribution plate 22 through the outer wall of the water guide 221, and is sprayed into the respective inner walls of the inner chamber 10 through the peripheral side edge of the water distribution plate 22.

Fig. 6 is a schematic view of the structure of the shower head 2 in fig. 5. Fig. 7 is an exploded view of fig. 6. Fig. 8 is a front view of fig. 6.

Referring to fig. 5 to 8, in some embodiments, the water guide column 221 has a conical structure. In the upward direction, the diameter of the water guide column 221 gradually decreases. Therefore, when the water injected from the injection pipe 21 through the nozzle 211 flows toward the water guide 221 in a facing direction, the water can be split along the outer wall of the water guide 221, and dispersed toward the peripheral side of the water distribution plate 22, and then sprayed toward the inner walls of the inner chamber 10 through the peripheral side of the water distribution plate 22.

In some embodiments, the water diversion disk 22 is circular, the top surface of the water diversion disk 22 is concavely provided with a water diversion groove 220 with a center recessed downwards, and the cross section of the water diversion groove 220 is arc-shaped, i.e. the water diversion groove 220 is in an arc-shaped groove structure. The water guide column 221 protrudes upward from the center of the bottom surface of the water diversion trench 220. Therefore, when the water sprayed from the nozzle 211 directly flows to the water guide column 221, the water flows can be split along the outer wall of the water guide column 221, respectively flow into the water diversion trench 220, and flow to the peripheral side of the water diversion trench 220 in a dispersed manner along the trench wall of the water diversion trench 220, and are sprayed obliquely upwards to the top wall and each peripheral side wall of the inner cavity 10 through the peripheral side edge of the water diversion trench 220, so that the flushing effect on the top wall and each peripheral wall of the inner cavity 10 is effectively ensured.

Fig. 9 is a side view of fig. 8. Fig. 10 is a cross-sectional view taken along line C-C in fig. 9.

Referring to fig. 5 to 10, in some embodiments, the peripheral wall of the water distribution tray 22 is provided with outwardly extending water guide ribs 222, and the water guide ribs 222 extend radially outwardly and are disposed obliquely upward. The plurality of water guide ribs 222 are circumferentially spaced around the outer peripheral wall of the water distribution tray 22, i.e., the plurality of water guide ribs 222 are circumferentially spaced around the outer periphery of the water distribution tray 22. Therefore, when the water flows are split along the outer wall of the water guide column 221 and respectively flow to the peripheral edges of the water distribution tray 22, part of the water flows can flow along the water guide ribs 222 and be sprayed to the inner wall of the inner cavity 10 through the outer ends of the water guide ribs 222, so that the spraying area of the water distribution tray 22 is increased. Meanwhile, part of water flow can be directly sprayed to the inner wall of the inner cavity 10 through the gaps between the adjacent water guide ribs 222, so that the water flow can be sprayed to the inner wall of the cavity along different spraying paths, the spraying effect of the water flow is improved, and the cleaning effect of the inner wall of the inner cavity 10 is further improved.

In some embodiments, the plurality of water guide ribs 222 are circumferentially and uniformly spaced around the periphery of the water distribution tray 22, thereby improving the uniformity of spraying of the water distribution tray 22 and the water guide ribs 222. It should be noted that the number of the water guide ribs 222 and the size of the interval between the adjacent water guide ribs 222 may be adjusted as required, and the present utility model is not limited thereto.

Referring to fig. 5-10, in some embodiments, the spray head 2 further includes a sleeve 23 and a connecting arm 24. Wherein, sleeve 23 is located in inner chamber 10, sleeve 23 detachably overlaps and establishes at the periphery of water injection pipe 21, and nozzle 211 exposes in the bottom of sleeve 23. The bottom end of the sleeve 23 is fixedly connected to the water distribution tray 22 by a connecting arm 24, so that the water distribution tray 22 can be arranged under the nozzle 211 at intervals. When the inner wall of the inner cavity 10 does not need to be self-cleaned, the sleeve 23 can be detached from the water injection pipe 21, so that the sleeve 23, the connecting arm 24 and the water distribution plate 22 can be detached from the water injection pipe 21 together and taken out of the inner cavity 10, and the inner space of the inner cavity 10 is prevented from being occupied, and the cooking treatment of the food materials in the inner cavity 10 is prevented from being influenced.

In some embodiments, the outer circumference of the water injection tube 21 is provided with external threads 214. Meanwhile, the inner wall of the sleeve 23 is provided with an internal thread 231 which is matched with the external thread 214 of the water injection pipe 21. Therefore, the sleeve 23 can be detachably screw-coupled to the outer circumference of the water injection pipe 21, thereby facilitating the installation and the removal.

In other embodiments, the sleeve 23 may be integrally formed on the outer periphery of the water injection pipe 21, and the water distribution plate 22 is directly fixed to the bottom end of the water injection pipe 21 through the connecting arm 24.

Referring to fig. 5-10, in some embodiments, the top end of the connecting arm 24 is connected to the bottom end of the sleeve 23, and the bottom end of the connecting arm 24 is connected to the outer wall of the water guide column 221. Therefore, the bottom end of the sleeve 23 can be integrally connected to the water guide 221 via the connecting arm 24, and further integrally connected to the water distribution tray 22, thereby fixing the water distribution tray 22 and the water guide 221 at a distance below the nozzle 211.

It should be noted that in other embodiments, the bottom ends of the connecting arms 24 may be connected to other areas of the top surface of the water distribution tray 22, or the bottom ends of the connecting arms 24 may be connected to the peripheral side wall or bottom wall of the water distribution tray 22.

In some embodiments, two connecting arms 24 are provided, the two connecting arms 24 are respectively disposed on two opposite sides of the water guiding column 221, and the two connecting arms 24 are symmetrically disposed on the periphery of the water guiding column 221.

In some embodiments, the plurality of connecting arms 24 are provided, and the plurality of connecting arms 24 are circumferentially uniformly spaced around the outer periphery of the water guide column 221.

It should be noted that the number of the connection arms 24 and the size of the interval between the adjacent connection arms 24 may be adjusted as needed, and the present utility model is not limited thereto.

Referring to fig. 5 to 10, in some embodiments, the top surface of the water distribution tray 22 is provided with water guiding protrusions 223 extending upwards, and the water guiding protrusions 223 are spaced apart from the water guiding column 221, i.e. the water guiding protrusions 223 are spaced apart from the water guiding column 221 on the periphery of the water guiding column 221. Meanwhile, a guide surface 2231 is formed on a side of the water guide protrusion 223 facing the water guide column 221, and the guide surface 2231 is arranged to extend obliquely upward in a radially outward direction of the water distribution plate 22. Therefore, when the water injection pipe 21 injects water to the water guide column 221 through the nozzle 211, the water can be split through the outer wall of the water guide column 221, and flows to the peripheral edge of the water distribution tray 22, wherein part of the water is blocked by the water guide protrusion 223, and then is sprayed obliquely upwards to the top wall or each peripheral side wall of the inner cavity 10 along the guiding surface 2231 on the water guide protrusion 223, and part of the water can flow to the peripheral edge of the water distribution tray 22, and is sprayed to each inner wall of the inner cavity 10 through the water guide ribs 222 or gaps between the water guide ribs 222, so that the water can be sprayed to the inner wall of the cavity along a plurality of different spraying paths, the spraying uniformity of the water is improved, and the cleaning effect of the inner wall of the inner cavity 10 is improved.

In some embodiments, the guide surface 2231 may be a sloped ramp or a curved surface configuration, without limitation.

Referring to fig. 5 to 10, in some embodiments, a plurality of water guiding protrusions 223 are disposed on the top surface of the water distribution tray 22, and the plurality of water guiding protrusions 223 are circumferentially arranged around the periphery of the water guiding column 221 at intervals. Therefore, when the water flows through the outer wall of the water guide column 221 to split and respectively flows to the peripheral edges of the water splitting tray 22, the water can be sprayed onto the top wall or each peripheral side wall of the inner cavity 10 along the guiding surfaces 2231 of the water guide protrusions 223 obliquely upwards through the water guide protrusions 223, so that the spraying uniformity of the water flow is further improved, and the cleaning effect on the inner wall of the inner cavity 10 is further improved.

In some embodiments, the plurality of water guiding protrusions 223 are circumferentially and uniformly spaced around the outer circumference of the water guiding column 221, further improving the spray uniformity of the water flow.

It should be noted that the number of the water guiding protrusions 223 and the size of the interval between the adjacent water guiding protrusions 223 may be adjusted according to need, and the present utility model is not limited thereto.

Referring to fig. 5 to 10, in some embodiments, the top end of the water injection tube 21 is detachably connected to the top wall of the inner cavity 10, and the top end of the water injection tube 21 protrudes out of the outer wall of the inner cavity 10, so as to facilitate the detachment of the water injection tube 21, and the water injection tube 21 is connected to a water source through a pipeline.

In some embodiments, the top end of the water injection pipe 21 is concavely provided with a limit groove 215, and the limit groove 215 is annular and is circumferentially arranged on the top end of the water injection pipe 21. Meanwhile, the limiting groove 215 is exposed out of the outer wall of the liner 11. Therefore, the top end of the water injection pipe 21 may be detachably fixed to the top wall of the liner 11 by a structural member such as a retainer ring.

In some embodiments, the water injection tube 21 and the entire spray head 2 are disposed at the center of the top wall of the inner chamber 10. Therefore, when the water injection pipe 21 sprays water to the water distribution plate 22 through the nozzle 211 and sprays water to the inner wall of the inner cavity 10 through the peripheral edge of the water distribution plate 22, water can be more uniformly sprayed to the top wall and the peripheral side wall of the inner cavity 10, the spraying uniformity of water flow is improved, and the cleaning effect on the inner wall of the inner cavity 10 is further improved.

Based on the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

in the household appliance of the embodiment of the utility model, a spray head 2 is arranged in an inner cavity 10, the spray head 2 comprises a water injection pipe 21 and a water distribution disc 22, the spray head 2 is fixed on the top wall of the inner cavity 10 by using the water injection pipe 21, a spray nozzle 211 is formed at the bottom end of the water injection pipe 21, and the top end of a water injection pipe 21 pipeline is connected with a water source; the water distribution disc 22 is arranged at intervals at the lower end of the water injection pipe 21, the center of the water distribution disc 22 is opposite to the nozzles 211, so that water can be sprayed into the water distribution disc 22 through the nozzles 211 of the water injection pipe 21, and is sprayed onto the inner wall of the inner cavity 10 by the peripheral edge of the water distribution disc 22, external power is not needed, the power of the water can be converted into spraying force, the uniform spraying effect is generated, the water can be uniformly sprayed onto all the inner walls of the cavity, and the cleaning effect on the inner wall of the inner cavity 10 is further improved.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A household appliance, comprising:

a case forming a housing outside the home appliance; an inner cavity is arranged in the box body;

the spray head is arranged in the inner cavity; the spray head comprises:

the water injection pipe is arranged in the inner cavity, a nozzle is formed at one end of the water injection pipe, and the other end of the water injection pipe is used for being connected with a water source;

the water distribution discs are arranged at intervals at the water outlet end of the water injection pipe, and are oppositely arranged at intervals with the nozzles;

the water injection pipe can spray water to the water distribution disc through the nozzle, and the water is sprayed to the inner wall of the inner cavity through the peripheral edge of the water distribution disc.

2. The household appliance of claim 1, wherein a water injection cavity is formed in the water injection pipe, and the bottom end of the water injection cavity is communicated with the nozzle;

a shrinkage part is formed between the water injection cavity and the nozzle, and the caliber of the water injection cavity is larger than that of the nozzle; the aperture of the necking part gradually decreases in the direction from the water injection cavity to the nozzle.

3. The household appliance of claim 1, wherein a center of a top surface of the water distribution plate is convexly provided with a water guide column convexly extending toward the nozzle, and the nozzle is arranged opposite to the water guide column at intervals;

the water sprayed from the nozzle can be guided to the periphery of the water distribution disc through the water guide column so as to be sprayed to the inner wall of the inner cavity through the periphery of the water distribution disc.

4. A household appliance as claimed in claim 3, wherein the water distribution plate is circular, and the top surface of the water distribution plate is provided with a water distribution groove with a concave center;

the water guide column protrudes upwards from the center of the bottom surface of the water diversion channel, is conical, and gradually reduces in diameter in the direction towards the nozzle;

the water sprayed from the nozzle is guided into the water diversion groove through the water guide column and sprayed to the inner wall of the inner cavity along the peripheral edge of the water diversion groove.

5. A household appliance as claimed in claim 3, wherein the peripheral wall of the water distribution tray is provided with water guide ribs which extend radially outwards and are arranged obliquely upwards;

the water guide ribs are arranged in a plurality, and the water guide ribs are circumferentially arranged around the periphery of the water distribution disc at intervals.

6. The household appliance of claim 1, wherein the spray head further comprises a sleeve, the sleeve is arranged in the inner cavity, the sleeve is detachably sleeved on the periphery of the water injection pipe, and the nozzle is exposed out of the bottom end of the sleeve;

the bottom end of the sleeve is fixedly connected with the water diversion disk so as to arrange the water diversion disk below the nozzle at intervals.

7. The household appliance of claim 6, wherein the outer circumference of the water injection pipe is provided with external threads, the inner wall of the sleeve is provided with internal threads, and the sleeve threads are sleeved on the outer circumference of the water injection pipe.

8. The household appliance of claim 6, wherein a center of a top surface of the water distribution plate is convexly provided with a water guide column convexly extending toward the nozzle, and the nozzle is arranged opposite to the water guide column at intervals;

the spray head also comprises a connecting arm arranged between the sleeve and the water distribution disc;

the top of the connecting arm is connected with the bottom of the sleeve, and the bottom of the connecting arm is connected with the water guide column.

9. The home appliance of claim 8, wherein a plurality of the connection arms are provided, the plurality of connection arms being circumferentially uniformly spaced around the outer circumference of the water guide column.

10. A household appliance as claimed in claim 3, wherein the top surface of the water distribution plate is convexly provided with water guide protrusions extending upwards, and the water guide protrusions are arranged at intervals on the periphery of the water guide column;

the guide surface is formed on one side of the water guide protrusion facing the water guide column, and the guide surface is obliquely and upwards arranged in an extending manner in the radial outward direction of the water distribution disc.

11. The household appliance according to claim 10, wherein a plurality of the water guide protrusions are provided, and the plurality of the water guide protrusions are circumferentially uniformly spaced around the outer circumference of the water guide column.

12. The household appliance of claim 1, wherein the top end of the water injection tube is detachably connected to the top wall of the inner cavity, and the top end of the water injection tube protrudes out of the outer wall of the inner cavity.