Filtering device and tableware treatment device

Abstract

The utility model discloses a filtering device and a tableware treatment device, and belongs to the technical field of electrical equipment. The filtering device comprises a shell, a filtering piece and a switching piece, the shell is provided with a filtering cavity, a water inlet channel, a water outlet channel and a switching channel, the water inlet channel, the water outlet channel and the filtering cavity are all communicated with the switching channel, and the filtering cavity is communicated with the water outlet channel; the filtering piece is arranged in the filtering cavity; the switching piece is arranged in the switching channel and can be switched between a first position and a second position; under the condition that the switching piece is located at the first position, the water inlet channel communicates with the water outlet channel through the switching channel; under the condition that the switching piece is located at the second position, the water inlet channel is communicated with the filtering cavity through the switching channel.

Description

Technical Field

[0001] This application belongs to the field of electrical equipment technology, and in particular relates to a filtration device and a tableware processing device. Background Technology

[0002] Filtration devices are widely used in electrical appliances, such as in tableware processing equipment. In some processing stages, purified water is required, while in others, tap water can be used directly. This necessitates one water path that filters the water before it enters the inner tank of the tableware processing equipment, while another path allows the water to enter directly without filtration. In related technologies, multiple water paths are required to achieve this dual-inlet configuration, controlled by multiple control valves. However, the use of multiple control valves increases the overall cost of the filtration system and also makes it larger and less convenient to install in the tableware processing equipment. Utility Model Content

[0003] This application aims to at least partially solve the technical problem of high cost of filtration devices. To this end, this application provides a filtration device and a tableware processing device.

[0004] In a first aspect, an embodiment of this application provides a filtering device, comprising:

[0005] The housing has a filter chamber, a water inlet channel, a water outlet channel, and a switching channel. The water inlet channel, the water outlet channel, and the filter chamber are all connected to the switching channel, and the filter chamber is connected to the water outlet channel.

[0006] A filter element is disposed within the filter chamber;

[0007] A switching element is disposed within the switching channel and is capable of switching between a first position and a second position;

[0008] When the switching element is in the first position, the water inlet channel is connected to the water outlet channel through the switching channel; when the switching element is in the second position, the water inlet channel is connected to the filter chamber through the switching channel.

[0009] In this embodiment, a single switching element can be used to switch between the two water paths, allowing the entire filtration device to filter both purified water and directly supply tap water. This single switching element reduces the number of components in the filtration device, thus lowering its cost. Furthermore, since the single switching element reduces the overall number of components, the filtration device can be more compactly designed, further reducing its size.

[0010] In an optional embodiment of this application, the switching channel has a first inlet, a first switching port and a second switching port, wherein the first inlet is connected to the inlet channel, the second switching port is connected to the filter chamber and the first switching port is connected to the outlet channel;

[0011] When the switching element is in the first position, the switching element can open the first switching port and close the second switching port; when the switching element is in the second position, the switching element can open the second switching port and close the first switching port.

[0012] In an optional embodiment of this application, the first water inlet is disposed on the side wall of the switching channel, and the first switching port and the second switching port are spaced apart along the axial direction of the switching channel.

[0013] In an optional embodiment of this application, the first water inlet is disposed between the first switching port and the second switching port.

[0014] In an optional embodiment of this application, the switching element passes through the first switching port, and the second switching port is disposed at the end of the switching channel.

[0015] In an optional embodiment of this application, the switching component includes a first blocking part and a second blocking part. When the switching component is in the first position, the second blocking part passes through the second switching port to block the second switching port, thereby opening the first switching port. When the switching component is in the second position, the first blocking part passes through the first switching port to block the first switching port, thereby opening the second switching port and closing the first switching port.

[0016] In an optional embodiment of this application, the switching element has a first sealing surface and a second sealing surface;

[0017] When the switching element is in the first position, the first sealing surface can open the first switching port and the second sealing surface can close the second switching port. When the switching element is in the second position, the second sealing surface can open the second switching port and the first sealing surface can close the first switching port.

[0018] In an optional embodiment of this application, the housing further has a communication channel connecting the filter chamber and the switching channel. The communication channel has a first connecting segment and a second connecting segment that are interconnected. The first connecting segment is connected to the switching channel, and the second connecting segment is connected to the filter chamber. The first connecting segment and the second connecting segment are staggered.

[0019] In an optional embodiment of this application, the first connecting segment has a first connecting port communicating with the switching channel, and the second connecting segment has a second connecting port communicating with the first connecting segment and a third connecting port communicating with the filter cavity;

[0020] The first connection port is located below the second connection port.

[0021] In an optional embodiment of this application, the water inlet channel has a first water inlet section and a second water inlet section, wherein the second water inlet section connects the first water inlet section and the switching channel;

[0022] The first water inlet section and the second water inlet section are arranged at an angle.

[0023] In an optional embodiment of this application, the second water inlet section has a second water inlet communicating with the switching channel and a third water inlet communicating with the first water inlet section, wherein the second water inlet is located below the third water inlet.

[0024] In an optional embodiment of this application, the water outlet channel has a first water outlet, a second water outlet, and a third water outlet that are interconnected. The first water outlet is connected to a first switching port, the second water outlet is connected to the filter chamber, and the third water outlet is disposed between the first water outlet and the second water outlet.

[0025] In an optional embodiment of this application, the water inlet channel and the water outlet channel are located on both sides of the switching channel, and the filter chamber is disposed at one end of the switching channel.

[0026] Secondly, embodiments of this application provide a tableware processing device, including a main body and the aforementioned filtering device, wherein the filtering device is installed on the main body.

[0027] The beneficial effects of the tableware processing device provided in the second aspect are the same as those of the filtering device provided in the first aspect, and will not be repeated here. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of the filtering device provided in an embodiment of this application is shown.

[0030] Figure 2 A schematic diagram of the structure of the filtration device for removing filter elements provided in an embodiment of this application is shown.

[0031] Figure 3 A cross-sectional view is shown of the switching element of a filtering device provided in some embodiments of this application in a first position.

[0032] Figure 4 A cross-sectional view is shown of the switching element of a filtering device provided in some embodiments of this application in a second position.

[0033] Figure 5 It shows Figure 3 A magnified view of a portion of point A in the middle.

[0034] Figure 6 It shows Figure 4 A magnified view of a section at point B in the middle.

[0035] Figure 7 A cross-sectional view is shown of the switching element of a filtering device provided in another embodiment of this application in a first position.

[0036] Figure 8 A cross-sectional view is shown of the switching element of a filtering device provided in another embodiment of this application in a second position.

[0037] Figure 9 It shows Figure 7 A magnified view of a section at point C.

[0038] Figure 10 It shows Figure 8 A magnified view of a section at point D.

[0039] Figure 11 A partial structural schematic diagram of a filtering device provided in some embodiments of this application is shown.

[0040] Figure 12 It shows Figure 11 A magnified view of a section at point E in the middle.

[0041] Reference numerals: 100 - Filter device, 110 - Housing, 112 - Filter chamber;

[0042] 113 - Water inlet channel, 113a - First water inlet section, 113b - Second water inlet section, 113d - Second water inlet, 113e - Third water inlet;

[0043] 114 - Water outlet channel, 114a - First water outlet, 114b - Second water outlet, 114c - Third water outlet;

[0044] 115 - Switching channel, 115a - First inlet, 115b - First switching port, 115c - Second switching port;

[0045] 116 - Connecting channel, 116a - First connecting segment, 116b - Second connecting segment, 116c - First connecting port, 116d - Second connecting port, 116e - Third connecting port;

[0046] 120 - Filter element;

[0047] 130 - Switching component, 132 - First sealing part, 134 - Second sealing part, 135 - Connecting part, 136 - First sealing surface, 137 - Second sealing surface. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0052] Filtration devices are widely used in electrical appliances. For example, in tableware processing devices, some processing steps require purified water, while others can use tap water directly. This means that one water path needs to pass through a filtration device before entering the inner tank of the tableware processing device, while another water path enters the inner tank directly without going through a filtration device.

[0053] In related technologies, multiple water channels are required to achieve dual water inlet, with multiple control valves controlling the opening and closing of different channels. However, using multiple control valves increases the overall cost and size of the filtration device, making it inconvenient to install on a tableware processing device. The filtration device and tableware processing device provided in this application improve upon these problems. The filtration device and tableware processing device provided in this application reduce the overall number of components in the filtration device, allowing for a more compact layout and reducing costs to some extent.

[0054] This application is described below with reference to the accompanying drawings and specific embodiments:

[0055] Please see Figure 1 and Figure 2 This application provides a filter device 100. The filter device 100 provided by this application can reduce the overall number of components in the filter device 100, enabling the entire filter device 100 to be laid out more compactly, and can also reduce the cost of the filter device 100 to a certain extent.

[0056] Please see Figure 3 and Figure 4 In this embodiment, the filtration device 100 includes: a housing 110, a filter element 120, and a switching element 130. The housing 110 has a filter chamber 112, a water inlet channel 113, a water outlet channel 114, and a switching channel 115. The water inlet channel 113, the water outlet channel 114, and the filter chamber 112 are all connected to the switching channel 115, and the filter chamber 112 is connected to the water outlet channel 114. The filter element 120 is disposed in the filter chamber 112. The switching element 130 is disposed in the switching channel 115 and can be switched between a first position and a second position. When the switching element 130 is in the first position, the water inlet channel 113 is connected to the water outlet channel 114 through the switching channel 115. When the switching element 130 is in the second position, the water inlet channel 113 is connected to the filter chamber 112 through the switching channel 115.

[0057] The housing 110 is the basic component of the entire filtration device 100. Filter elements 120, switching elements 130 and other structures can be installed inside the housing 110. The housing 110 can provide a base for the installation of filter elements 120, switching elements 130 and other structures.

[0058] The filter element 120 is installed inside the filter chamber 112 and is mainly used to filter the water entering the filter chamber 112. It can filter out some impurities in the water. For ease of description, the water filtered by the filter element 120 is defined as purified water, and the water that has not been filtered by the filter element 120 is defined as tap water. The filter element 120 is detachably installed in the filter chamber 112 and can be replaced periodically according to the usage time or number of uses.

[0059] The switching element 130 is disposed within the switching channel 115. The switching element 130 can move within the switching channel 115, connecting the inlet channel 113 with one of the outlet channel 114 and the filter chamber 112. If the switching element 130 connects the inlet channel 113 with the filter chamber 112, the tap water entering the inlet channel 113 can enter the filter chamber 112, be processed by the filter element 120, and become purified water before flowing out of the outlet channel 114. If the switching element 130 connects the inlet channel 113 with the outlet channel 114, the tap water entering the inlet channel 113 can directly enter and exit the outlet channel 114 through the switching channel 115, so that the tap water does not pass through the filter element 120 and flows directly out of the outlet channel 114.

[0060] Similarly, for ease of description, the water path (the water path from which tap water flows out) connecting the inlet channel 113, the switching channel 115, and the outlet channel 114 is defined as the tap water path, and the water path (the water path from which purified water flows out) connecting the inlet channel 113, the switching channel 115, the filter chamber 112, and the outlet channel 114 is defined as the purified water path.

[0061] Specifically, the switching element 130 can move within the switching channel 115 and between a first position and a second position. When the switching element 130 is in the first position, the inlet channel 113 is connected to the outlet channel 114 through the switching channel 115, and tap water flows directly out of the outlet channel 114 without passing through the filter element 120. When the switching element 130 is in the second position, the inlet channel 113 is connected to the filter chamber 112 through the switching channel 115, and the tap water entering the inlet channel 113 enters the filter chamber 112 through the switching channel 115. After being filtered into pure water by the filter element 120, it flows out through the outlet channel 114.

[0062] In other words, in this embodiment, the switching between the two water paths can be achieved through a single switching element 130. This allows the entire filtration device 100 to filter both purified water and directly supply tap water. Using a single switching element 130 to switch between the two water paths reduces the number of components in the filtration device 100, thus reducing its cost. Furthermore, since the switching between the two water paths through the single switching element 130 reduces the overall number of components in the filtration device 100, a more compact layout can be achieved, further reducing the size of the filtration device 100 to some extent.

[0063] In some embodiments, under normal conditions, the switching element 130 can be located in either a first position or a second position, meaning that either the tap water path or the purified water path is normally open. Specifically, under normal conditions, the switching element 130 can be located in the first position, where the inlet channel 113 is connected to the outlet channel 114 via the switching channel 115, and the tap water path is normally open. Alternatively, under normal conditions, the switching element 130 can be located in the second position, where the inlet channel 113 is connected to the filter chamber 112 via the switching channel 115, meaning the purified water path is normally open.

[0064] Please see Figure 5 and Figure 6 In some embodiments, the switching channel 115 has a first inlet 115a, a first switching port 115b, and a second switching port 115c. The first inlet 115a is connected to the inlet channel 113, the second switching port 115c is connected to the filter chamber 112, and the first switching port 115b is connected to the outlet channel 114. When the switching member 130 is in the first position, the switching member 130 can open the first switching port 115b and close the second switching port 115c. When the switching member 130 is in the second position, the switching member 130 can open the second switching port 115c and close the first switching port 115b.

[0065] The first inlet 115a is normally open, and one of the first switching port 115b and the second switching port 115c can be opened and the other closed under the action of the switching element 130. That is, under the action of the switching element 130, only one of the tap water circuit and the purified water circuit is open and the other is closed, thereby improving the control accuracy of the switching element 130.

[0066] The operation of the switching element 130 can be controlled by a driver. The motor controls the movement of the switching element 130 within the switching channel 115, enabling the switching element 130 to open or close the first switching port 115b and / or open or close the second switching port 115c. The driver can be located outside the switching channel 115.

[0067] In some embodiments, a first inlet 115a is disposed on the side wall of the switching channel 115, and a first switching port 115b and a second switching port 115c are disposed at an axial distance along the switching channel 115.

[0068] The switching channel 115 is roughly cylindrical. The first inlet 115a can be set on the side wall of the switching channel 115. The first switching port 115b and the second switching port 115c can be spaced apart along the axial direction of the switching channel 115. The switching element 130 can reciprocate along the axial direction of the switching channel 115, so that the switching element 130 can open or close the first switching port 115b and open or close the second switching port 115c.

[0069] The first inlet 115a is disposed on the side wall of the switching channel 115, and the switching element 130 is disposed inside the switching channel 115. The switching element 130 moves axially along the switching channel 115. The switching element 130 can be spaced apart from the side wall of the switching channel 115, that is, at least the position of the switching element 130 corresponding to the first inlet 115a does not contact the side wall of the switching channel 115. During the process of the switching element 130 moving axially along the switching channel 115, the switching element 130 will never close the first inlet 115a, so that the first inlet 115a is always in the normally open state.

[0070] The first inlet 115a is located on the side wall of the switching channel 115, which can be considered as being radially arranged along the switching channel 115. The first switching port 115b and the second switching port 115c are arranged axially along the switching channel 115. This allows tap water entering the switching channel 115 radially to move axially along the switching channel 115 and flow out from either the first switching port 115b or the second switching port 115c. This arrangement allows water to enter the switching channel 115 radially and exit axially. The tap water changes its flow direction after entering the switching channel 115, which can also play a role in slowing down the flow to some extent.

[0071] Regarding the specific locations of the first inlet 115a, the first switching port 115b, and the second switching port 115c, in some embodiments, the first inlet 115a can be located between the first switching port 115b and the second switching port 115c. Since the first inlet 115a is located on the side wall of the switching channel 115, and the first switching port 115b and the second switching port 115c are respectively located on both sides of the first inlet 115a (defined as the first switching port 115b located on the right side of the first inlet 115a, and the second switching port 115c located on the left side of the first inlet 115a), the tap water path and the purified water path flow out in different directions, allowing the tap water path and the purified water path to flow independently, thereby reducing the interference between the tap water path and the purified water path.

[0072] As for the layout of the switching element 130 in the switching channel 115, the switching element 130 can be inserted through the first switching port 115b, and the second switching port 115c can be located at the end of the switching channel 115.

[0073] The first switching port 115b is located inside the switching channel 115, and the second switching port 115c is located in a section of the switching channel 115. The switching element 130 passes through the first switching port 115b, so that the switching element 130 can move along the axial direction of the switching channel 115 and can close the first switching port 115b or the second switching port 115c.

[0074] The specific structure of the switching element 130 can be varied, as long as it enables the first switching port 115b and the second switching port 115c to be opened or closed. Two implementation methods of the switching element 130 will be described below as examples.

[0075] In some embodiments, the switching member 130 includes a first blocking part 132 and a second blocking part 134. When the switching member 130 is in the first position, the second blocking part 134 passes through the second switching port 115c to block the second switching port 115c, thereby opening the first switching port 115b. When the switching member 130 is in the second position, the first blocking part 132 passes through the first switching port 115b to block the first switching port 115b, thereby opening the second switching port 115c and closing the first switching port 115b.

[0076] The switching component 130 also includes a connecting part 135. The first blocking part 132 and the second blocking part are both installed on the connecting part 135, and the connecting part 135 passes through the first switching port 115b. The first blocking part 132 and the second blocking part 134 are both disposed between the first switching port 115b and the second switching port 115c. The driver can drive the first blocking part 132 and the second blocking part 134 to move along the axial direction of the switching channel 115 through the connecting part 135.

[0077] The first sealing part 132 can be generally conical or frustum-shaped. The diameter of the first sealing part 132 gradually decreases in the direction from the first inlet 115a toward the first switching port 115b. When it is necessary to block the first switching port 115b, the first sealing part 132 moves toward the first switching port 115b, so that the first sealing part 132 gradually extends into the first switching port 115b (through the first switching port 115b) until the outer surface of the first sealing part 132 abuts against the inner wall of the first switching port 115b, thereby blocking the first switching port 115b. At this time, the entire switching component 130 is in the first position.

[0078] Similarly, the second sealing part 134 can also be roughly conical or frustum-shaped. The diameter of the second sealing part 134 gradually decreases in the direction from the first inlet 115a toward the second switching port 115c. When it is necessary to seal the second switching port 115c, the second sealing part 134 moves toward the direction of the second switching port 115c, so that the second sealing part 134 gradually extends into the second switching port 115c (through the second switching port 115c) until the outer surface of the second sealing part 134 abuts against the inner wall of the second switching port 115c, thereby sealing the second switching port 115c. At this time, the entire switching component 130 is in the second position.

[0079] Since the first blocking part 132 and the second blocking part 134 are fixedly installed on the connecting part 135, when the connecting part 135 moves, both the first blocking part 132 and the second blocking part 134 will move along with the connecting part 135. Even if the first switching port 115b and the second switching port 115c are not blocked simultaneously, when the first blocking part 132 blocks the first switching port 115b, the second blocking part 134 is separate from the second switching port 115c. When the second blocking part 134 blocks the second switching port 115c, the first blocking part 132 is separate from the first switching port 115b.

[0080] Please see Figure 7 , Figure 8 , Figure 9 and Figure 10 In some other embodiments, the switching member 130 has a first sealing surface 136 and a second sealing surface 137; when the switching member 130 is in the first position, the first sealing surface 136 can open the first switching port 115b and the second sealing surface 137 can close the second switching port 115c; when the switching member 130 is in the second position, the second sealing surface 137 can open the second switching port 115c and the first sealing surface 136 can close the first switching port 115b.

[0081] Both the first sealing surface 136 and the second sealing surface 137 can be planar, and the area of ​​the first sealing surface 136 can be larger than the area of ​​the first switching port 115b. Similarly, the area of ​​the second sealing surface 137 can be larger than the area of ​​the second switching port 115c.

[0082] Both the first sealing surface 136 and the second sealing surface 137 are disposed between the first switching port 115b and the second switching port 115c. If it is necessary to block the first switching port 115b, the first sealing surface 136 moves closer to the first sealing surface 136 under the action of the switching member 130, so that the first sealing surface 136 covers the first switching port 115b, thereby blocking the first switching port 115b. If it is necessary to block the second switching port 115c, the second sealing surface 137 moves closer to the second sealing surface 137 under the action of the switching member 130, so that the second sealing surface 137 covers the second switching port 115c, thereby blocking the second switching port 115c.

[0083] Similarly, the connecting portion 135 of the switching component 130 passes through the first switching port 115b, and the first sealing surface 136 and the second sealing surface 137 can be disposed on the connecting portion 135. In the two embodiments of the switching component 130 provided above, the structure of the connecting portion 135 can be the same. Along the radial cross section of the switching channel 115, the connecting portion 135 can be approximately cross-shaped, so that the part of the connecting portion 135 corresponding to the first water inlet 115a does not contact the inner wall of the switching channel 115. This ensures that the connecting portion 135 will not contact the first water inlet 115a during the axial movement along the switching channel 115, and will not significantly affect the entry of tap water into the switching channel 115, allowing the entire filtration device 100 to operate normally.

[0084] Please see Figure 11 and Figure 12 In some embodiments, the housing 110 also has a communication channel 116 that connects the filter chamber 112 and the switching channel 115. The communication channel 116 has a first connecting segment 116a and a second connecting segment 116b that are connected to each other. The first connecting segment 116a is connected to the switching channel 115, and the second connecting segment 116b is connected to the filter chamber 112. The first connecting segment 116a and the second connecting segment 116b are staggered.

[0085] The switching channel 115 is connected to the filter chamber 112 via a connecting channel, allowing tap water to be buffered before entering the transition chamber. The first connecting section 116a and the second connecting section 116b are staggered, causing the tap water to change direction as it enters the second connecting section 116b from the first connecting section 116a. This slows down the speed at which tap water enters the filter chamber 112, minimizing the risk of excessive flow velocity that could damage the filter element 120. It also prevents excessive flow velocity from causing the tap water to remain in the filter chamber 112 for too short a time, resulting in less contact with the filter element 120 and affecting the filtration effect.

[0086] In some embodiments, the first connecting segment 116a has a first connecting port 116c communicating with the switching channel 115, and the second connecting segment 116b has a second connecting port 116d communicating with the first connecting segment 116a and a third connecting port 116e communicating with the filter chamber 112; the first connecting port 116c is located below the second connecting port 116d.

[0087] Since the first connection port 116c is located above the second connection port 116d, the tap water entering the first connection section 116a from the switching channel 115 will not directly enter the second connection section 116b. Instead, it will accumulate to a certain height in the first connection section 116a before entering the second connection section 116b. This results in a slower flow rate of the tap water entering the second connection section 116b, which increases the contact time between the tap water and the filter element 120 in the filter chamber 112, thereby maximizing the filtration effect.

[0088] In some embodiments, the water inlet channel 113 has a first water inlet section 113a and a second water inlet section 113b, the second water inlet section 113b connecting the first water inlet section 113a and the switching channel 115; the first water inlet section 113a and the second water inlet section 113b are arranged at an angle, so that the water flow directions of the first water inlet section 113a and the second water inlet section 113b are different. When the tap water enters the second water inlet section 113b from the first water inlet section 113a, the tap water can be further collected due to the different flow directions, avoiding excessive local flow velocity and damage to the switching element 130 or the filter element 120.

[0089] The second water inlet section 113b has a second water inlet 113d connected to the switching channel 115 and a third water inlet 113e connected to the first water inlet section 113a. The second water inlet 113d is located below the third water inlet 113e.

[0090] The second inlet 113d is located below the third inlet 113e, so that there is a certain height difference between the third inlet 113e and the second inlet 113d. This allows some of the gravitational potential energy of the tap water to be converted into kinetic energy as it enters the second inlet 113d from the third inlet 113e. This allows the water entering the switching channel 115 to have a certain flow velocity, and then it can flow out from the first switching port 115b or the second switching port 115c.

[0091] Specifically, the opening area of ​​the third inlet 113e can be smaller than the width of the first inlet section 113a, so that the water in the first inlet section 113a can be collected at the third inlet 113e, which can increase the flow rate of tap water entering the second inlet section 113b, so that the tap water in the second inlet section 113b can have a certain speed.

[0092] In some embodiments, the water outlet channel 114 has a first water outlet 114a, a second water outlet 114b, and a third water outlet 114c that are interconnected. The first water outlet 114a is connected to the first switching port 115b, the second water outlet 114b is connected to the filter chamber 112, and the third water outlet 114c is disposed between the first water outlet 114a and the second water outlet 114b.

[0093] Whether it's tap water or purified water, the water will eventually converge into the outlet channel 114 and be discharged to the outside of the housing 110 through the third outlet 114c. The drainage of two water paths is achieved through one outlet channel 114, which reduces the number of outlet channels 114 and makes the entire filter device 100 more compact.

[0094] In some embodiments, the inlet channel 113 and the outlet channel 114 are located on both sides of the switching channel 115, and the filter chamber 112 is disposed at one end of the switching channel 115. This arrangement makes the structure of the entire filter device 100 more compact and enables the entire filter device 100 to be miniaturized.

[0095] The working principle of the filtration device 100 provided in this application embodiment is as follows: In this application embodiment, if the tableware processing device needs to be washed with tap water, the driver drives the entire switching element 130 to move towards the direction of the second switching port 115c, so that the switching element 130 opens the first switching port 115b and closes the second switching port 115c. The tap water in the water inlet channel 113 enters the water outlet channel 114 through the switching channel 115 and is directly discharged from the third water outlet 114c. If the tableware processing device needs to be washed with purified water, the driver drives the entire switching element 130 to move towards the direction of the first switching port 115b, so that the switching element 130 opens the second switching port 115c and closes the first switching port 115b. The tap water in the water inlet channel 113 enters the filter chamber 112 through the switching channel 115, becomes purified water after being filtered by the filter element 120, and then enters the water outlet channel 114 through the second water outlet 114b, so that the purified water is directly discharged from the third water outlet 114c.

[0096] Based on the same inventive concept, this application provides a tableware processing device, including a main body and a filter device 100 as described above, wherein the filter device 100 is installed on the main body. The tableware processing device can be a dishwasher or a sterilizer.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0098] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0099] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A filtration device, characterized in that, include: The housing (110) has a filter chamber (112), a water inlet channel (113), a water outlet channel (114), and a switching channel (115). The water inlet channel (113), the water outlet channel (114), and the filter chamber (112) are all connected to the switching channel (115), and the filter chamber (112) is connected to the water outlet channel (114). A filter element (120) is disposed within the filter chamber (112); A switching element (130) is disposed within the switching channel (115) and is capable of switching between a first position and a second position; When the switching element (130) is in the first position, the water inlet channel (113) is connected to the water outlet channel (114) through the switching channel (115); when the switching element (130) is in the second position, the water inlet channel (113) is connected to the filter chamber (112) through the switching channel (115).

2. The filtration device according to claim 1, characterized in that, The switching channel (115) has a first inlet (115a), a first switching port (115b), and a second switching port (115c). The first inlet (115a) is connected to the inlet channel (113), the second switching port (115c) is connected to the filter chamber (112), and the first switching port (115b) is connected to the outlet channel (114). When the switching element (130) is in the first position, the switching element (130) can open the first switching port (115b) and close the second switching port (115c). When the switching element (130) is in the second position, the switching element (130) can open the second switching port (115c) and close the first switching port (115b).

3. The filtration device according to claim 2, characterized in that, The first water inlet (115a) is disposed on the side wall of the switching channel (115), and the first switching port (115b) and the second switching port (115c) are spaced apart along the axial direction of the switching channel (115).

4. The filtration device according to claim 3, characterized in that, The first water inlet (115a) is located between the first switching port (115b) and the second switching port (115c).

5. The filtration device according to claim 3, characterized in that, The switching element (130) is inserted through the first switching port (115b), and the second switching port (115c) is located at the end of the switching channel (115).

6. The filtration device according to claim 2, characterized in that, The switching component (130) includes a first blocking part (132) and a second blocking part (134). When the switching component (130) is in the first position, the second blocking part (134) passes through the second switching port (115c) to block the second switching port (115c) and open the first switching port (115b). When the switching element (130) is in the second position, the first blocking part (132) passes through the first switching port (115b) to block the first switching port (115b), so that the second switching port (115c) is opened and the first switching port (115b) is closed.

7. The filtration device according to claim 2, characterized in that, The switching component (130) has a first sealing surface (136) and a second sealing surface (137); When the switching element (130) is in the first position, the first sealing surface (136) can open the first switching port (115b) and the second sealing surface (137) closes the second switching port (115c). When the switching element (130) is in the second position, the second sealing surface (137) can open the second switching port (115c) and the first sealing surface (136) closes the first switching port (115b).

8. The filtration device according to any one of claims 1-7, characterized in that, The housing (110) also has a communication channel (116) connecting the filter chamber (112) and the switching channel (115). The communication channel (116) has a first connecting section (116a) and a second connecting section (116b) that are connected to each other. The first connecting section (116a) is connected to the switching channel (115), and the second connecting section (116b) is connected to the filter chamber (112). The first connecting section (116a) and the second connecting section (116b) are staggered.

9. The filtration device according to claim 8, characterized in that, The first connecting segment (116a) has a first connecting port (116c) communicating with the switching channel (115), and the second connecting segment (116b) has a second connecting port (116d) communicating with the first connecting segment (116a) and a third connecting port (116e) communicating with the filter chamber (112). The first connection port (116c) is located below the second connection port (116d).

10. The filtration device according to any one of claims 1-7, characterized in that, The water inlet channel (113) has a first water inlet section (113a) and a second water inlet section (113b), and the second water inlet section (113b) connects the first water inlet section (113a) and the switching channel (115); The first water inlet section (113a) and the second water inlet section (113b) are arranged at an angle.

11. The filtration device according to claim 10, characterized in that, The second water inlet section (113b) has a second water inlet (113d) communicating with the switching channel (115) and a third water inlet (113e) communicating with the first water inlet section (113a), with the second water inlet (113d) located below the third water inlet (113e).

12. The filtration device according to any one of claims 1-7, characterized in that, The water outlet channel (114) has a first water outlet (114a), a second water outlet (114b), and a third water outlet (114c) that are interconnected. The first water outlet (114a) is connected to the first switching port (115b), the second water outlet (114b) is connected to the filter chamber (112), and the third water outlet (114c) is located between the first water outlet (114a) and the second water outlet (114b).

13. The filtration device according to any one of claims 1-7, characterized in that, The water inlet channel (113) and the water outlet channel (114) are located on both sides of the switching channel (115), and the filter chamber (112) is located at one end of the switching channel (115).

14. A tableware processing device, characterized in that, It includes a main body and a filter device (100) as described in any one of claims 1-13, the filter device (100) being mounted on the main body.

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