A dishwasher reversing spray arm and dishwasher

Abstract

The application relates to the field of dishwashers, and discloses a reversing spray arm of a dishwasher and the dishwasher, which comprises a body and a reversing assembly. The body is provided with multiple water inlets and multiple spray holes. The multiple water inlets are respectively formed with water inlet channels. Each water inlet channel is respectively communicated with a spray hole. The reversing assembly comprises a valve body and a valve core. The valve body is fixedly connected with the body. The valve core is arranged in the valve body and is slidably connected with the valve body. The valve core comprises valve sheets and a valve rod which are connected with each other. The bottom of the valve body is provided with a connecting hole and multiple second guide walls which are arranged in a circumferential direction along an axis of the valve body. Second guide grooves are formed between adjacent second guide walls. The valve rod is inserted into the connecting hole. The valve sheets can cover part of the water inlets. Multiple first guide sheets and multiple second guide sheets which are distributed in a circumferential direction of the valve sheets are respectively arranged on the valve sheets. The first guide sheets are arranged in correspondence with the first guide grooves. The second guide sheets are arranged in correspondence with the second guide grooves. Therefore, when water flows into the valve body, the reversing of the spray arm can be realized, and it is unnecessary to arrange complicated electric control pipelines and components.

Description

Technical Field

[0001] This application relates to the field of dishwashers, and in particular to a dishwasher reversing spray arm and a dishwasher. Background Technology

[0002] Inside the dishwasher, a rotating spray arm typically sprays water onto the dishes. However, the spray arm of a traditional dishwasher can only rotate in one direction, making it difficult for some parts of the dishes to be sprayed with water, resulting in incomplete cleaning. In response, some spray arms that can spray water in both directions have appeared on the market. However, these spray arms are all driven by motors. The motor drives the spray arm to switch between forward and reverse rotation, which not only requires a separate motor but also requires related electronic control components, resulting in a complex structure and space-consuming features. Utility Model Content

[0003] This application aims to improve at least one technical problem in the background art.

[0004] The first aspect of this application provides a dishwasher reversing spray arm, which includes a body and a reversing assembly; the body is provided with a plurality of water inlets and a plurality of spray holes, the plurality of water inlets respectively forming a water inlet channel, each of the water inlet channels communicating with the spray holes, and the bottom of the body is provided with a plurality of first guide walls arranged circumferentially along the body, and a first guide groove is formed between adjacent first guide walls. The reversing assembly includes a valve body and a valve core. The valve body is fixedly connected to the main body, and the valve core is disposed within the valve body and slidably connected to the valve body. The valve core includes a valve plate and a valve stem connected to each other. The bottom of the valve body is provided with a connecting hole and a plurality of second guide walls arranged circumferentially along the valve body axis. A second guide groove is formed between adjacent second guide walls. The valve stem is inserted into the connecting hole. The valve plate can cover part of the water inlet. The valve plate is provided with a plurality of first guide plates and second guide plates distributed circumferentially along the valve plate. The first guide plates are correspondingly arranged with the first guide groove, and the second guide plates are correspondingly arranged with the second guide groove.

[0005] According to some technical solutions of this application, the valve plate is provided with a shielding plate, which corresponds to the water inlet, so that when water flows in and causes the valve core to float, the shielding plate can block part of the water inlet.

[0006] According to some technical solutions of this application, the main body includes an upper spray arm and a lower spray arm. The upper spray arm and the lower spray arm are connected to form a water inlet channel. The spray hole is provided on the upper spray arm and the water inlet is provided on the lower spray arm. The water inlet channel is provided with multiple partition plates to form multiple outwardly extending diversion channels.

[0007] According to some technical solutions of this application, a sealing ring is provided between the lower plate of the spray arm and the valve body.

[0008] According to some technical solutions of this application, both the upper and lower spray arm plates are cross-shaped spray arms, which are divided into four flow channels by the aforementioned partition plates.

[0009] According to some technical solutions of this application, the valve body is provided with a hook on the top and a slot on the outside of the main body, and the hook and the slot are connected in cooperation.

[0010] According to some technical solutions of this application, a spray arm seat and a rotating seat are further provided below the reversing assembly. The spray arm seat is sleeved on the outer wall of the valve body and fixedly connected to the valve body. The spray arm seat is rotatably connected to the rotating seat.

[0011] According to some technical solutions of this application, it also includes a nut connector, which is disposed between the spray arm seat and the valve body, and the connecting hole is disposed on the nut connector.

[0012] The dishwasher reversing spray arm provided in this application has at least the following beneficial effects: When water flows into the valve body, the valve core rises due to buoyancy, and the first guide plate slides along the first guide wall, causing the valve core to rotate to a first position. At this time, a specific water inlet opens, and the spray arm rotates and sprays water in a first direction. When the water supply stops, the valve core falls, and the second guide plate slides along the second guide wall, causing the valve core to rotate to a second position. When water is supplied again, another set of water inlets opens, thereby realizing the reversing of the spray arm, without the need for complex electrical control pipelines and components.

[0013] A second aspect of this application also provides a dishwasher that includes a dishwasher reversing spray arm as described in any of the preceding claims. Attached Figure Description

[0014] Figure 1 A perspective view of the dishwasher reversing spray arm provided in an embodiment of this application; Figure 2 This is a bottom structural diagram of the dishwasher reversing spray arm provided in an embodiment of this application; Figure 3 This is a side view of the dishwasher reversing spray arm provided in an embodiment of this application. Figure 4 This is an exploded view of the dishwasher reversing spray arm provided in an embodiment of this application. Figure 5 This is an exploded view of another dishwasher reversing spray arm provided in an embodiment of this application.

[0015] In the attached diagram: 100 - Body; 200 - Reversing assembly; 300 - Sealing ring; 400 - Nut connector; 500-Spray arm seat; 600-Rotating seat; 110-Water inlet; 120-Spray hole; 130-Water inlet channel; 140-First guide wall; 150-First guide groove; 160-Upper spray arm plate; 170-Lower spray arm plate; 210-Valve body; 220-Valve core; 221-Valve plate; 222-Valve stem; 230-Second guide wall; 240-Second guide groove; 2211-First guide plate; 2212-Second guide plate; 410-Connecting hole. Detailed Implementation

[0016] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0017] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Regarding directional descriptions, such as up, down, front, back, left, right, etc., the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0018] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0019] The following is combined Figures 1 to 5 The embodiments of this utility model are described below.

[0020] The first aspect of this application provides a dishwasher reversing spray arm, which includes a body 100 and a reversing assembly 200; the body 100 is provided with a plurality of water inlets 110 and a plurality of spray holes 120, the plurality of water inlets 110 respectively form water inlet channels 130, each water inlet channel 130 is respectively connected to the spray hole 120, and the bottom of the body 100 is provided with a plurality of first guide walls 140 arranged circumferentially along the body 100, and a first guide groove 150 is formed between adjacent first guide walls 140; The reversing assembly 200 includes a valve body 210 and a valve core 220. The valve body 210 is fixedly connected to the main body 100. The valve core 220 is disposed inside the valve body 210 and slidably connected to the valve body 210. The valve core 220 includes a valve plate 221 and a valve stem 222 connected to each other. The bottom of the valve body 210 is provided with a connecting hole 410 and a plurality of second guide walls 230 arranged circumferentially along the axis of the valve body 210. A second guide groove 240 is formed between adjacent second guide walls 230. The valve stem 222 is inserted into the connecting hole 410. The valve plate 221 can cover part of the inlet 110. The valve plate 221 is provided with a plurality of first guide plates 2211 and second guide plates 2212 distributed circumferentially along the valve plate 221. The first guide plates 2211 are correspondingly arranged with the first guide groove 150, and the second guide plates 2212 are correspondingly arranged with the second guide groove 240.

[0021] When water flows into the valve body 210, the valve core 220 moves upward under buoyancy. At this time, the first guide plate 2211 slides along the first guide wall 140, causing the valve core 220 to rotate to the first position. In this position, the valve plate 221 closes part of the water inlet, and the water flows in through the other part of the unclosed water inlet. Then, it sprays outward from the nozzle along the corresponding water inlet channel. In this way, the spray arm can rotate and spray water in the first direction. When the water supply stops, the valve core 220 falls due to its own gravity. During the falling process, the second guide plate 2212 slides along the second guide wall 230, causing the valve core 220 to rotate to the second position. When the water supply resumes, when the valve core 220 floats up, the valve plate 221 closes the part of the water inlet that was not closed before, and the other set of water inlet channels will be connected. The water flows out from the nozzle on this set of water inlet channels, thereby realizing the reversal of the spray arm.

[0022] Therefore, the buoyancy of the water flow and the gravity of the valve core 220 itself can be used to drive the valve core 220 to rise and fall. At the same time, the valve core 220 is guided to rotate by setting a guide wall. The rotation of the valve core 220 allows the valve plate 221 to alternately close different water inlets, thereby realizing the switching of the opening and closing states of different water inlet channels 130, thus realizing the reversal of the spray arm, greatly expanding the cleaning coverage of the spray arm, and effectively improving the cleaning uniformity.

[0023] According to some technical solutions of this application, a baffle plate is provided inside the valve plate 221. The baffle plate corresponds to the water inlet 110 so that when water flows in and causes the valve core 220 to float, the baffle plate can block part of the water inlet 110. When the valve core 220 rises, the baffle plate rotates with the valve plate 221 and blocks part of the water inlet 110, so that the water flows only through a specific channel.

[0024] For example, four first guide plates 2211 are provided, and four first guide grooves 150 are provided. When water is supplied to the reversing assembly 200, water enters the body 100 from the valve body 210. The valve core 220 is gradually raised by the buoyancy of the water. During the rising process, the end of the first guide plate 2211 contacts the first guide wall 140 and slides relative to the inclined surface under the guidance of the inclined surface of the first guide wall 140, thereby causing the valve core 220 to rotate in the first direction. Then, the first guide plate 2211 and the first guide groove 150 are connected to each other, so that the water outlet on the valve plate 221 is aligned with the first water inlet 110. At the same time, the valve plate 221 blocks other water inlets 110, so that water can only enter the water inlet channel 130, so that multiple water inlet channels 130 spray water at the same time, causing the body 100 to rotate in the first direction.

[0025] When the water supply stops, the valve core 220 falls into the valve body 210 under the guidance of the valve stem 222. During the falling process, the end of the second guide plate 2212 contacts the second guide wall 230 and slides along the inclined surface under the guidance of the inclined surface of the second guide wall 230, thereby causing the valve core 220 to rotate. Then the second guide plate 2212 engages with the second guide groove 240. Similarly, when water is introduced again, the direction of the valve core 220 is switched. The valve core 220 blocks the second water inlet 110, and water can only enter the water inlet channel 130, causing the body 100 to rotate in the second direction. That is, the direction of the spray arm can be changed by switching the water supply state. There is no need to set up complex electrical control pipelines and components, which not only simplifies the structure but also saves space.

[0026] According to some technical solutions of this application, the body 100 includes an upper spray arm 160 and a lower spray arm 170. The upper spray arm 160 and the lower spray arm 170 are connected to form a water inlet channel 130. The spray hole 120 is provided on the upper spray arm 160, and the water inlet 110 is provided on the lower spray arm 170. The water inlet channel 130 is provided with a plurality of partition plates to form a plurality of outwardly extending diversion channels through the partition plates.

[0027] According to some technical solutions of this application, a sealing ring 300 is provided between the lower spray arm plate 170 and the valve body 210. The sealing ring 300 forms a seal between the lower spray arm plate 170 and the valve body 210 to prevent water leakage.

[0028] According to some technical solutions of this application, both the upper spray arm 160 and the lower spray arm 170 are cross-shaped spray arms, forming four diversion channels through the aforementioned partition plates. The cross-shaped spray arm structure evenly distributes water flow to the spray holes 120 in four directions through the four diversion channels, expands the coverage area through bidirectional rotation, and enhances the rinsing force on the tableware through multi-angle water spraying, thereby further expanding the cleaning range and improving the uniformity of cleaning.

[0029] According to some technical solutions of this application, the valve body 210 is provided with a hook at the top, and the body 100 is provided with a slot on the outside, and the hook and the slot are connected in a cooperative manner. The valve body 210 achieves quick assembly and fixation by engaging the hook with the slot on the outside of the body 100.

[0030] According to some technical solutions of this application, a spray arm seat 500 and a rotating seat 600 are further provided below the reversing assembly 200. The spray arm seat is sleeved on the outer wall of the valve body and fixedly connected to the valve body. The spray arm seat is rotatably connected to the rotating seat. The spray arm seat is fixed on the valve body and forms a rotating pair with the rotating seat, supporting the rotation of the spray arm and ensuring that the spray arm rotates flexibly.

[0031] Furthermore, the rotating seat 600 is provided with a connecting groove, and the outer side of the body 100 is provided with a connecting protrusion, the connecting groove and the connecting protrusion are connected in a cooperative manner.

[0032] According to some technical solutions of this application, the reversing spray arm also includes a nut connector 400, which is disposed between the spray arm seat 500 and the valve body 210, and the connecting hole 410 is disposed on the nut connector 400. The water inlet pipe is threadedly connected to the nut connector 400, so that when the dishwasher is working, the water inlet pipe can deliver water to the reversing spray arm, so that the water flow can stably enter the valve body and then flow to the water inlet of the main body.

[0033] Therefore, the spray arm can be reversed simply by switching the water supply mode, eliminating the need for complex electrical control piping and components. This not only simplifies the structure but also saves space, improving cleaning effectiveness.

[0034] This application also provides a dishwasher, which includes a dishwasher reversing spray arm as described in any of the preceding claims. The exhaust cabinet disclosed in the embodiments of this application has all the technical effects of the aforementioned dishwasher reversing spray arm, and will not be described again here.

[0035] Furthermore, certain terms in this specification have been used to describe embodiments of this specification. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this specification. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be appropriately combined in one or more embodiments of this specification.

[0036] The preferred embodiments of this application have been described in detail above, but this application is not limited to the embodiments described. Without departing from the spirit and scope of this specification, those skilled in the art can make equivalent modifications or alternative configurations based on the embodiments in this specification to implement the application in this specification. These equivalent modifications or alternatives are all included within the scope defined by the claims of this application.

Claims

1. A dishwasher reversing spray arm, characterized in that: include: The main body (100) is provided with multiple water inlets (110) and multiple spray holes (120). Each of the multiple water inlets (110) forms a water inlet channel (130), and each water inlet channel (130) is connected to the spray hole (120). The bottom of the main body (100) is provided with multiple first guide walls (140) arranged around the circumference of the main body (100), and a first guide groove (150) is formed between adjacent first guide walls (140). A reversing assembly (200) includes a valve body (210) and a valve core (220). The valve body (210) is fixedly connected to the main body (100). The valve core (220) is disposed within the valve body (210) and slidably connected to the valve body (210). The valve core (220) includes a valve plate (221) and a valve stem (222) connected to each other. The bottom of the valve body (210) is provided with a connecting hole (410) and a plurality of second guide walls (230) arranged circumferentially along the axis of the valve body (210). Adjacent second guide walls (230) are connected to each other. A second guide groove (240) is formed between the guide walls (230). The valve stem (222) is inserted into the connecting hole (410). The valve plate (221) can cover part of the water inlet (110). The valve plate (221) is provided with a plurality of first guide plates (2211) and second guide plates (2212) distributed circumferentially along the valve plate (221). The first guide plate (2211) is correspondingly arranged with the first guide groove (150), and the second guide plate (2212) is correspondingly arranged with the second guide groove (240).

2. The dishwasher reversing spray arm according to claim 1, characterized in that: The valve body (210) has a hook on the top and a slot on the outside of the main body (100), and the hook and the slot are connected in a cooperative manner.

3. The dishwasher reversing spray arm according to claim 1, characterized in that: The valve plate (221) is provided with a shielding plate, which corresponds to the water inlet (110) so that when water flows in and causes the valve core (220) to float, the shielding plate can block part of the water inlet (110).

4. The dishwasher reversing spray arm according to claim 1, characterized in that: The main body (100) includes an upper spray arm plate (160) and a lower spray arm plate (170). The upper spray arm plate (160) and the lower spray arm plate (170) are connected to form a water inlet channel (130). The spray hole (120) is provided on the upper spray arm plate (160), and the water inlet (110) is provided on the lower spray arm plate (170). The water inlet channel (130) is provided with multiple partition plates to form multiple outwardly extending diversion channels.

5. The dishwasher reversing spray arm according to claim 4, characterized in that: A sealing ring (300) is provided between the lower blade of the spray arm (170) and the valve body (210).

6. The dishwasher reversing spray arm according to claim 4, characterized in that: Both the upper spray arm (160) and the lower spray arm (170) are cross-shaped spray arms, which are divided into four flow channels by the aforementioned partition plates.

7. The dishwasher reversing spray arm according to claim 1, characterized in that: Below the reversing assembly (200) are also provided a spray arm seat (500) and a rotating seat (600). The spray arm seat (500) is sleeved on the outer wall of the valve body (210) and fixedly connected to the valve body (210). The spray arm seat (500) is rotatably connected to the rotating seat (600).

8. The dishwasher reversing spray arm according to claim 7, characterized in that: The rotating seat (600) is provided with a connecting groove, and the outer side of the body (100) is provided with a connecting protrusion, and the connecting groove and the connecting protrusion are connected in a cooperative manner.

9. The dishwasher reversing spray arm according to claim 7, characterized in that: It also includes a nut connector (400) disposed between the spray arm seat (500) and the valve body (210), and the connection hole (410) is disposed on the nut connector (400).

10. A dishwasher, characterized in that: Includes the dishwasher reversing spray arm as described in any one of claims 1-9.

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