Middle spraying device and cleaning machine

Abstract

The utility model discloses a middle spraying device and a cleaning machine, and belongs to the technical field of kitchen electric appliances. The middle spraying device comprises a middle spraying pipe, the middle spraying pipe comprises an inner pipe and an outer pipe arranged outside the inner pipe in a sleeving mode, an inner through hole is formed in the pipe wall of the inner pipe, and an outer through hole is formed in the pipe wall of the outer pipe. And a sealing ring is arranged between the inner pipe and the outer pipe and is used for sealing the matching part between the inner pipe and the outer pipe and increasing the friction force between the inner pipe and the outer pipe. In practical application, the inner pipe can rotate relative to the outer pipe, so that the middle spraying pipe is provided with a maximum flow position where the inner through hole is completely communicated with the outer through hole, a middle flow position where the inner through hole is partially communicated with the outer through hole and a closing position where the inner through hole is staggered from the outer through hole, the flow of the middle spraying pipe is adjusted, and different cleaning requirements are met. According to the cleaning machine, the middle spraying device is applied, the flow of the middle spraying device can be adjusted according to cleaning requirements, and waste of water resources is reduced under the condition that the cleaning effect is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a center spray device and a cleaning machine. Background Art

[0002] Dishwashers, such as dishwashers, can be used to clean and dry dishes, significantly reducing tedious manual labor, lowering user labor intensity, and improving user experience. Most existing washing machines only have upper and lower spray arms, with the upper spray arm located above the bowl basket and the lower spray arm located below the bowl basket. By providing spray arms above and below the bowl basket, respectively, the cleaning effect can be improved. However, the upper and lower spray arms can only spray the entire bowl basket and are unable to provide specific, enhanced cleaning for different locations within the basket. Furthermore, there are still corners within the bowl basket that conventional spray arms cannot reach, resulting in mediocre cleaning results that fail to meet users' demand for enhanced cleaning effects.

[0003] In the related art, a central nozzle is added to the bowl basket and driven by a drive mechanism to rotate the nozzle around a horizontal axis to achieve enhanced cleaning of specific locations in the basket. However, the water flow rate of the existing central nozzle cannot be controlled. If the central nozzle sprays a small amount of water, it is easy to not clean greasy dishes thoroughly. If the central nozzle sprays a large amount of water, it is easy to waste water on dishes with little or no greasy stains.

[0004] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0005] The purpose of this application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of this application is to provide a middle spray device and a cleaning machine, which can adjust the flow rate of the middle spray device according to the cleaning needs, thereby reducing water waste while ensuring the cleaning effect.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a middle spray device for a cleaning machine, comprising:

[0008] The middle nozzle comprises an inner tube and an outer tube sleeved outside the inner tube, wherein the inner tube has an inner through hole on its wall, and the outer tube has an outer through hole on its wall;

[0009] A sealing ring is provided between the inner tube and the outer tube, the sealing ring being used to seal the fitting portion between the inner tube and the outer tube and to increase the friction between the inner tube and the outer tube;

[0010] The inner tube and the outer tube can rotate relative to each other so that the middle nozzle has a maximum flow position where the inner through hole is completely connected to the outer through hole, an intermediate flow position where the inner through hole is partially connected to the outer through hole, and a closed position where the inner through hole is staggered from the outer through hole.

[0011] As an optional solution for the middle spray device, one end of the outer tube is used to be connected to the water inlet pipe of the cleaning machine, and the other end of the outer tube has an opening for the inner tube to penetrate.

[0012] As an optional solution for the middle spray device, the inner tube includes an inner tube body with a hollow interior, the end of the inner tube body facing the water inlet pipe is connected to the inner cavity of the outer tube, and the end of the inner tube body facing away from the water inlet pipe has a sealing plate.

[0013] As an optional solution for the middle spray device, the inner tube further includes an operating rod, one end of which is fixed to the sealing plate, and the other end of which extends out of the inner tube body.

[0014] As an optional solution for the middle spray device, the inner tube further includes a limiting member, which is fixed to the outer surface of the inner tube body and can abut against the end surface of the outer tube.

[0015] As an optional solution for the middle spray device, in the axial direction of the middle spray pipe, at least one sealing ring is located between the sealing plate and the limiting member.

[0016] As an optional solution of the middle spray device, the outer surface of the inner tube body has a groove for accommodating the sealing ring, and a portion of the sealing ring protrudes outside the groove; or

[0017] The inner surface of the outer tube has a groove for accommodating the sealing ring, and a portion of the sealing ring protrudes out of the groove.

[0018] As an optional solution for the middle spray device, the middle spray device also includes a first connecting seat and a second connecting seat, one end of the middle spray pipe is rotatably connected to the first connecting seat through its outer tube, and the other end of the middle spray pipe is rotatably connected to the second connecting seat through its inner tube.

[0019] As an optional solution for the middle spray device, the middle spray device also includes a rotating arm, which is sleeved on the outside of the outer tube and cooperates with the outer tube to form a flow channel connected to the outer through hole, and the rotating arm has a first spray hole and a second spray hole for driving itself to rotate relative to the first connecting seat and the second connecting seat, and the first spray hole and the second spray hole are both connected to the flow channel; the first spray hole and the second spray hole are respectively located on both sides of the extension line of any diameter of the middle nozzle and the spraying directions of both are opposite to the rotation direction of the rotating arm.

[0020] In a second aspect, the present application provides a cleaning machine comprising an inner tank, a bowl basket and the middle spray device as described above, wherein the bowl basket is installed in the inner tank and the middle spray device is installed on the bowl basket.

[0021] The beneficial effects of this application are:

[0022] The central spray device provided in the present application includes a central spray pipe, which includes an inner pipe and an outer pipe sleeved outside the inner pipe. The inner pipe wall has an inner through hole, and the outer pipe wall has an outer through hole. A sealing ring is provided between the inner and outer pipes, which is used to seal the mating portion between the inner and outer pipes and to increase the friction between the inner and outer pipes. In practical applications, the inner pipe can be rotated relative to the outer pipe to enable the central spray pipe to have a maximum flow position where the inner through hole is completely connected to the outer through hole, an intermediate flow position where the inner through hole is partially connected to the outer through hole, and a closed position where the inner through hole is staggered from the outer through hole, thereby adjusting the flow rate of the central spray pipe to meet different cleaning needs.

[0023] The cleaning machine provided in the present application, by applying the above-mentioned middle spray device, can adjust the flow rate of the middle spray device according to the cleaning needs, thereby reducing water waste while ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without any creative work.

[0025] Figure 1 A schematic diagram of the partial structure of the cleaning machine provided in an embodiment of the present application is shown.

[0026] Figure 2 A schematic diagram of an exploded view of the middle spray device provided in an embodiment of the present application is shown.

[0027] Figure 3 A schematic cross-sectional view of the middle spray device provided in an embodiment of the present application in one direction is shown.

[0028] Figure 4 Shown Figure 3 A partial enlarged view of the middle spray device.

[0029] Figure 5 A schematic cross-sectional view of the middle spray device provided in an embodiment of the present application in another direction is shown.

[0030] Reference numerals:

[0031] 100, bowl basket; 200, center spray device;

[0032] 11. First connecting seat; 12. Second connecting seat;

[0033] 2. Middle nozzle; 21. Inner tube; 210. Inner through hole; 211. Inner tube body; 2111. Sealing plate; 2112. Groove; 212. Operating lever; 213. Positioning member; 22. Outer tube; 220. Outer through hole;

[0034] 3. Rotating arm; 30. Flow channel; 301. First spray hole; 302. Second spray hole; 31. First clamp; 32. Second clamp;

[0035] 4. End cap;

[0036] 5. Sealing ring. DETAILED DESCRIPTION

[0037] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0038] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0039] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0040] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0041] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0042] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0043] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0044] Figure 1 FIG. 1 shows a partial structural diagram of a cleaning machine provided in an embodiment of the present application. Figure 1 As shown, the present application provides a washing machine, including an inner tank (not shown in the figure), a bowl basket 100, a spray arm device (not shown in the figure) and a middle spray device 200. The bowl basket 100 is installed in the inner tank and is used to place tableware to be washed. The spray arm device is installed in the inner tank, and the middle spray device 200 is installed in the bowl basket 100. The spray arm device has a larger spraying range than the middle spray device 200. The middle spray device 200 is used to enhance the cleaning of tableware. The spray arm device cooperates with the middle spray device 200 to improve the cleaning efficiency of the washing machine.

[0045] In addition, the cleaning machine also includes a water supply system, which is used to supply clean water to the spray arm device and the middle spray device 200. It should be noted that the water supply system can be selected from the water supply system of the existing cleaning machine, which will not be described in detail here.

[0046] Figure 2 A schematic diagram of an exploded view of the middle spray device 200 provided in an embodiment of the present application is shown. Figure 3 A schematic cross-sectional view of the middle spray device 200 provided in an embodiment of the present application in one direction is shown. Figure 4 Shown Figure 3 A partial enlarged view of the middle spray device 200. Figures 2 to 4 As shown, the central spray device 200 includes a central spray pipe 2, which includes an inner tube 21 and an outer tube 22 sleeved outside the inner tube 21. The inner tube 21 has an inner through hole 210 on its wall, and the outer tube 22 has an outer through hole 220 on its wall. A sealing ring 5 is provided between the inner tube 21 and the outer tube 22, and the sealing ring 5 is used to seal the mating portion between the inner tube 21 and the outer tube 22 and to increase the friction between the inner tube 21 and the outer tube 22. In actual application, the inner tube 21 can be rotated relative to the outer tube 22 so that the central spray pipe 2 has a maximum flow position in which the inner through hole 210 is completely connected to the outer through hole 220, an intermediate flow position in which the inner through hole 210 is partially connected to the outer through hole 220, and a closed position in which the inner through hole 210 is staggered from the outer through hole 220, thereby adjusting the flow rate of the central spray pipe 2 to meet different cleaning needs.

[0047] The central spray device 200 also includes a first connecting seat 11 and a second connecting seat 12. One end of the central spray pipe 2 is rotatably connected to the first connecting seat 11 via its outer tube 22, while the other end of the central spray pipe 2 is rotatably connected to the second connecting seat 12 via its inner tube 21. Furthermore, both the first connecting seat 11 and the second connecting seat 12 engage with the ribs of the bowl basket 100, thereby securing the central spray pipe 2 to the bowl basket 100.

[0048] Furthermore, the outer tube 22 of the middle nozzle 2 is rotatably connected to the first connecting seat 11 via the end cover 4 . This design can improve the connection stability between the middle nozzle 2 and the first connecting seat 11 .

[0049] In this embodiment, one end of the outer tube 22 is connected to the water inlet pipe of the cleaning machine, and the other end of the outer tube 22 has an opening for the inner tube 21 to pass through. Specifically, the first connecting seat 11 has a fluid channel connected to the water inlet pipe, and the end cap 4 has a through hole connecting the fluid channel and the outer tube 22 to the inner cavity, thereby connecting the inner cavity of the outer tube 22 to the water inlet pipe.

[0050] Continue to see Figures 3 and 4As shown, the inner tube 21 includes an inner tube body 211 with a hollow interior. The end of the inner tube body 211 facing the water inlet pipe is connected to the inner cavity of the outer tube 22. The end of the inner tube body 211 facing away from the water inlet pipe has a sealing plate 2111, which is used to prevent water in the inner cavity of the inner tube body 211 from leaking.

[0051] In order to facilitate the rotation of the inner tube 21 relative to the outer tube 22 , the inner tube 21 further includes an operating rod 212 . One end of the operating rod 212 is fixed to the sealing plate 2111 , and the other end thereof extends out of the inner tube body 211 .

[0052] In one embodiment, the operating rod 212 is in the shape of a hexagonal prism, which facilitates the use of a wrench to rotate the operating rod 212, thereby facilitating the user's rotation of the inner tube 21, saving time and effort. Of course, in other embodiments, the shape of the operating rod 212 can also be designed based on the applicability of existing wrench tools, as long as it facilitates the user's rotation of the inner tube 21. Examples are not given here one by one.

[0053] The inner tube 21 also includes a limiter 213, which is fixed to the outer surface of the inner tube body 211 and can abut against the end face of the outer tube 22 to limit the installation position between the inner tube 21 and the outer tube 22 to prevent the inner tube 21 from being fully inserted into the outer tube 22.

[0054] In the axial direction of the middle nozzle 2, at least one sealing ring 5 is located between the sealing plate 2111 and the limiter 213. On the one hand, it can realize the sealing cooperation between the inner tube 21 and the outer tube 22. On the other hand, it can prevent the inner tube 21 from rotating easily relative to the outer tube 22, which may cause the overall flow of the middle nozzle 2 to be uncontrollable, thereby improving the spraying stability of the middle nozzle 2.

[0055] To facilitate installation of the sealing ring 5, the outer surface of the inner tube body 211 has a groove 2112 for accommodating the sealing ring 5, with a portion of the sealing ring 5 protruding from the groove 2112. Of course, in other embodiments, the inner surface of the outer tube 22 may also have a groove 2112 for accommodating the sealing ring 5, with a portion of the sealing ring 5 protruding from the groove 2112.

[0056] Figure 5 FIG. 2 shows a cross-sectional view of the middle spray device 200 provided in an embodiment of the present application in another direction. Figure 5 Combine Figures 2 to 3As shown, the middle spray device 200 also includes a rotating arm 3, which is sleeved outside the outer tube 22 and cooperates with the outer tube 22 to form a flow channel 30 connected to the outer through hole 220. The rotating arm 3 has a first spray hole 301 and a second spray hole 302 for driving itself to rotate relative to the connecting seat 1. The first spray hole 301 and the second spray hole 302 are respectively located on both sides of the extension line of any diameter of the middle spray pipe 2 and the spray directions of both are opposite to the rotation direction of the rotating arm 3. The middle spray device 200 does not require an additional driving mechanism to drive the middle spray pipe 2 to rotate. It only relies on the fluid sprayed from the first spray hole 301 and the second spray hole 302 to generate two opposite torques on the middle spray pipe 2, causing the middle spray pipe 2 to rotate around its own axis. This not only simplifies the structure of the middle spray device 200, but also reduces the requirements for installation space and improves the space utilization of the inner tank.

[0057] There are at least two rotating arms 3, which are spaced apart along the axis of the central nozzle 2 to enhance the rotational force of the central nozzle 2 and ensure stable rotation of the central nozzle 2. In this embodiment, there are four rotating arms 3, which are evenly spaced apart along the axis of the central nozzle 2.

[0058] The spray directions of the first spray holes 301 of each rotating arm 3 are not all the same, that is, the spray directions of the first spray holes 301 of each rotating arm 3 can be the same or different. Similarly, since the spray directions of the second spray holes 302 are opposite to the spray directions of the first spray holes 301, the spray directions of the second spray holes 302 of each rotating arm 3 can be the same or different.

[0059] It is understandable that the rotating arm 3 can be a one-piece structure or a structure assembled from two or more parts, as long as the rotating arm 3 can be provided with the first spray hole 301 and the second spray hole 302. For example, in this embodiment, the rotating arm 3 includes a first clamping member 31 and a second clamping member 32 that is detachably fixed to the first clamping member 31.

[0060] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A middle spray device for a cleaning machine, characterized in that: include: The middle nozzle (2) comprises an inner tube (21) and an outer tube (22) sleeved outside the inner tube (21), wherein the tube wall of the inner tube (21) has an inner through hole (210), and the tube wall of the outer tube (22) has an outer through hole (220); A sealing ring (5) is provided between the inner tube (21) and the outer tube (22), and the sealing ring (5) is used to seal the fitting portion between the inner tube (21) and the outer tube (22) and to increase the friction force between the inner tube (21) and the outer tube (22); The inner tube (21) and the outer tube (22) are capable of relative rotation, so that the middle nozzle (2) has a maximum flow position in which the inner through hole (210) is completely connected to the outer through hole (220), an intermediate flow position in which the inner through hole (210) is partially connected to the outer through hole (220), and a closed position in which the inner through hole (210) is staggered from the outer through hole (220).

2. The middle spray device according to claim 1, characterized in that: One end of the outer tube (22) is used to be connected to the water inlet pipe of the cleaning machine, and the other end of the outer tube (22) has an opening for the inner tube (21) to penetrate.

3. The middle spray device according to claim 2, characterized in that: The inner tube (21) comprises an inner tube body (211) with a hollow interior. One end of the inner tube body (211) facing the water inlet pipe is connected to the inner cavity of the outer tube (22). The end of the inner tube body (211) facing away from the water inlet pipe is provided with a sealing plate (2111).

4. The middle spray device according to claim 3, characterized in that: The inner tube (21) further comprises an operating rod (212), one end of which is fixed to the sealing plate (2111), and the other end of which extends out of the inner tube body (211).

5. The middle spray device according to claim 4, characterized in that: The inner tube (21) further comprises a limiting member (213), wherein the limiting member (213) is fixed to the outer surface of the inner tube body (211), and the limiting member (213) can abut against the end surface of the outer tube (22).

6. The middle spray device according to claim 5, characterized in that: In the axial direction of the middle nozzle (2), at least one of the sealing rings (5) is located between the sealing plate (2111) and the limiting member (213).

7. The middle spray device according to claim 6, characterized in that: The outer surface of the inner tube body (211) has a groove (2112) for accommodating the sealing ring (5), and a portion of the sealing ring (5) protrudes outside the groove (2112); or The inner surface of the outer tube (22) has a groove (2112) for accommodating the sealing ring (5), and a portion of the sealing ring (5) protrudes outside the groove (2112).

8. The middle spray device according to any one of claims 1 to 7, characterized in that: The central spray device further comprises a first connecting seat (11) and a second connecting seat (12); one end of the central spray pipe (2) is rotatably connected to the first connecting seat (11) via its outer tube (22); and the other end of the central spray pipe (2) is rotatably connected to the second connecting seat (12) via its inner tube (21).

9. The middle spray device according to claim 8, characterized in that: The middle spray device further comprises a rotating arm (3), the rotating arm (3) being sleeved outside the outer tube (22) and cooperating with the outer tube (22) to form a flow channel (30) connected to the outer through hole (220), the rotating arm (3) having a first spray hole (301) and a second spray hole (302) for driving itself to rotate relative to the first connecting seat (11) and the second connecting seat (12), the first spray hole (301) and the second spray hole (302) both being connected to the flow channel (30); the first spray hole (301) and the second spray hole (302) are respectively located on both sides of an extension line of any diameter of the middle spray pipe (2), and the spraying directions of both are opposite to the rotation direction of the rotating arm (3).

10. A cleaning machine, characterized in that: It comprises an inner container, a bowl basket (100) and a middle spray device according to any one of claims 1 to 9, wherein the bowl basket (100) is installed in the inner container, and the middle spray device is installed in the bowl basket (100).

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