Waterway switching structure and water outlet device applying same

Abstract

This utility model discloses a water path switching structure and a water outlet device with the water path switching structure. The water path switching structure includes: an inlet component comprising a first flow channel, a second flow channel, and a central plug; a drive mechanism comprising a piston assembly and an energy storage chamber; and an outlet mechanism comprising a water distributor, a movable component, a guide component, and at least two outlet channels. The water distributor is rotatably disposed between the second flow channel and each outlet channel. The movable component is linked with the piston assembly and can translate relative to the guide component between a first position and a second position. The water distributor can translate with the movable component and rotate along the guide component. The entire switching process is controlled by hydraulic power, requiring no electrical control components, battery replacement, or charging. Under the water storage and drainage function of the energy storage chamber, the switching operation can still be achieved even at low water pressure. The structure is low in cost and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of water outlet equipment technology, and in particular to a water circuit switching structure and a water outlet device using the same. Background Technology

[0002] Existing water outlet devices, such as shower heads and overhead sprayers, generally use electronically controlled water circuit switching structures, which are costly and require periodic battery replacement or charging, causing inconvenience to users. Utility Model Content

[0003] This utility model aims to at least partially solve one of the aforementioned technical problems in related technologies. To this end, this utility model proposes a waterway switching structure.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: This utility model also proposes a water outlet device having the above-mentioned water path switching structure.

[0005] The waterway switching structure according to a first aspect embodiment of the present invention includes: The water inlet assembly includes a first flow channel, a second flow channel, and a central plug. A first connecting port is provided between the first flow channel and the second flow channel. The central plug moves in response to changes in the water pressure difference between the two sides to open or block the first connecting port. A drive mechanism, comprising a piston assembly and an energy storage chamber, wherein the energy storage chamber is connected to the first flow channel, and the piston assembly moves in response to changes in water pressure within the energy storage chamber; The water outlet mechanism includes a water distribution component, a movable component, a guide component, and at least two water outlet channels. The water distribution component is rotatably disposed between the second channel and each of the water outlet channels to sequentially switch the second channel to communicate with one of the water outlet channels. The movable component is linked with the piston assembly and can translate relative to the guide component between a first position and a second position. The water distribution component can translate with the movable component and rotate along the guide component.

[0006] The water circuit switching structure according to the embodiment of this utility model has at least the following beneficial effects: the entire switching process is controlled by hydraulic power, without the need to install electronic control components, without the need to replace batteries or charge, and under the water storage and drainage function of the energy storage chamber, the switching operation can still be achieved even at low water pressure. The structure has low cost and is easy to operate.

[0007] According to some embodiments of this utility model, the guide member is provided with a guide cavity, and the inner wall of the guide cavity is provided with a first guide rib. Multiple first guide ribs are sequentially spaced around the central axis of the guide cavity. The ends of the first guide ribs are provided with a first guide slope. The movable member is coaxially and movably inserted into the guide cavity. The movable member is provided with a plurality of second guide ribs, which are paired and inserted between adjacent first guide ribs. The ends of the second guide ribs are provided with a second guide slope. The inclination directions of each first guide slope and each second guide slope around the central axis of the guide cavity are consistent. The water distribution member is provided with a plurality of third guide ribs sequentially spaced around its central axis, and each third guide rib extends into the guide cavity. When the movable part moves from the first position to the second position, the second guide slopes are paired up and abut against the ends of the third guide ribs, and the third guide ribs slide down the second guide slopes to the first guide slopes. When the movable part moves from the second position to the first position, the third guide rib slides along the first guide ramp and inserts into the interval between two adjacent first guide ribs.

[0008] According to some embodiments of the present invention, the water outlet mechanism further includes a first elastic element and a second elastic element. The first elastic element applies an elastic force to the movable element to move it toward the first position, and the second elastic element applies an elastic force to the water distribution element to move it toward the movable element.

[0009] According to some embodiments of this utility model, when the water pressure in the energy storage chamber increases, the piston assembly moves to the third position and moves away from the movable member, and the movable member moves to the first position; when the water pressure in the energy storage chamber decreases, the piston assembly moves to the fourth position, the piston assembly abuts against the movable member and pushes the movable member to the second position.

[0010] According to some embodiments of the present invention, the driving mechanism further includes a cylinder, the piston assembly includes a plug, a linkage member and a third elastic member, the plug is movably installed in the cylinder, the plug separates the interior of the cylinder into a pressure chamber and an energy storage chamber, the third elastic member applies an elastic force to the plug to move it to the fourth position, a portion of the plug extends out of the cylinder and is connected to the linkage member, and the linkage member is linked with the movable member.

[0011] According to some embodiments of this utility model, the linkage includes a first link, a second link, and a third link. A support plate extends from the outer side of the cylinder. One end of the first link is hinged to the plug body. The other end of the first link is hinged to one end of the second link, and the hinge point is the first hinge point. The other end of the second link is hinged to one end of the third link, and the hinge point is the second hinge point. The second link is hinged to the support plate, and the hinge point is the third hinge point. The third hinge point is located between the first hinge point and the second hinge point, and the third hinge point is closer to the second hinge point. The third link is slidably mounted on the support plate, and the third link can abut against or move away from the movable part.

[0012] According to some embodiments of the present invention, the central bolt has a first pressure-bearing surface, a second pressure-bearing surface, and a third pressure-bearing surface. The first pressure-bearing surface and the second pressure-bearing surface are arranged opposite to each other, and the second pressure-bearing surface and the third pressure-bearing surface face the same direction. The area of ​​the first pressure-bearing surface is larger than the area of ​​the second pressure-bearing surface, and the sum of the areas of the second pressure-bearing surface and the third pressure-bearing surface is larger than the area of ​​the first pressure-bearing surface. The first pressure-bearing surface faces the first communication port, and the third pressure-bearing surface faces the energy storage cavity.

[0013] According to some embodiments of the present invention, the water distribution component is provided with a second port, which is switched sequentially to the position opposite to the inlet end of one of the water outlet channels as the water distribution component rotates, and the second channel is connected to the water outlet channel through the second port.

[0014] According to some embodiments of the present invention, the water distribution component includes a water distribution plate, the second port is opened on the water distribution plate, the water outlet mechanism further includes a water outlet component, the water outlet component and the guide component define each of the water outlet channels, each of the water inlets is opened on the guide component, when the movable component is in the first position, the water distribution plate abuts against the guide component, the second port is opposite to one of the water inlets, and the water distribution plate blocks the other water inlets.

[0015] The water outlet device according to a second aspect embodiment of the present invention includes a water path switching structure.

[0016] The water outlet device according to the embodiments of this utility model has at least the following beneficial effects: it is easy to switch and does not require electricity to operate.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural diagram of the waterway switching structure; Figure 2 This is a schematic diagram of the internal structure of the waterway switching structure; Figure 3 yes Figure 1 Another usage status diagram; Figure 4 This is an exploded view of the water outlet mechanism. Figure 5 This is a schematic diagram of the internal structure of the water outlet mechanism; Figure 6 This is a structural schematic diagram of the guide component; Figure 7 This is a structural diagram of the moving parts; Figure 8 This is a schematic diagram of the water distribution component; Figure 9 This is a schematic diagram showing the fit between the guide component and the moving component; Figure 10 yes Figure 9 Another usage status diagram; Figure 11 This is a schematic diagram of the central plug.

[0019] Reference numerals: Water inlet assembly 100; First flow channel 110; Water inlet 111; Second flow channel 120; Center plug 130; First pressure bearing surface 131; Second pressure bearing surface 132; Third pressure bearing surface 133; First connecting port 140; Drive mechanism 200; Piston assembly 210; Plug body 211; Third elastic element 212; Energy storage chamber 220; Cylinder body 230; Linkage element 240; First connecting rod 241; Second connecting rod 242; Third connecting rod 243; First hinge point 244; Second hinge point 245; Third hinge point 246; Water outlet mechanism 300; Water distribution component 310; Third guide rib 311; Second opening 312; Water distribution plate 313; Movable component 320; Second guide rib 321; Second guide slope 322; Guide component 330; Guide cavity 331; First guide rib 332; First guide slope 333; Water outlet channel 340; Water inlet end 341; First elastic component 350; Second elastic component 360; Water outlet component 370. Detailed Implementation

[0020] The embodiments of this utility model 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] This utility model relates to a water path switching structure, including a water inlet component 100, a drive mechanism 200, and a water outlet mechanism 300. The water path switching structure is applied to a water outlet device, which can be a shower head, overhead spray, spray gun, etc.

[0022] like Figure 1 and Figure 2As shown, the water inlet assembly 100 includes a first flow channel 110, a second flow channel 120, and a central plug 130. The inlet 111 of the first flow channel 110 is used to connect to an external water supply system. The first flow channel 110 and the second flow channel 120 are interconnected, and the connection point between the first flow channel 110 and the second flow channel 120 is a first connecting port 140. The central plug 130 is installed at the first connecting port 140, and the central plug 130 axially translates relative to the first connecting port 140 according to changes in the water pressure it receives. When the central plug 130 translates to one side, it opens the first connecting port 140, allowing the first flow channel 110 and the second flow channel 120 to connect; when the central plug 130 translates to the other side, it blocks the first connecting port 140, preventing the first flow channel 110 and the second flow channel 120 from connecting. The drive mechanism 200 includes a piston assembly 210 and an energy storage chamber 220. The energy storage chamber 220 is connected to the first flow channel 110. Water from the first flow channel 110 can be transported to the energy storage chamber 220, and water in the energy storage chamber 220 can also flow back to the first flow channel 110. One side of the piston assembly 210 faces the energy storage chamber 220. As water flows into the energy storage chamber 220, the water pressure in the energy storage chamber 220 increases, pushing the piston assembly 210 to one side. When the water in the energy storage chamber 220 flows back to the first flow channel 110, the water pressure in the energy storage chamber 220 decreases, and the piston assembly 210 returns to its original position on the other side. The water outlet mechanism 300 includes a water distributor 310, a movable component 320, a guide component 330, and at least two water outlet channels 340. The water distributor 310 is located between the second flow channel 120 and each of the water outlet channels 340. The second flow channel 120 is selectively connected to one of the water outlet channels 340 through the water distributor 310. The piston assembly 210 and the movable component 320 are linked. The movable component 320 can translate relative to the guide component 330 between a first position and a second position. The water distributor 310 rotates relative to the guide component 330 under the combined action of the movable component 320 and the guide component 330. Each rotation of the water distributor 310 switches from its current alignment to alignment with the next water outlet channel 340, thereby connecting the second channel 120 to the next water outlet channel 340. The water pattern ejected through each water outlet channel 340 can be set to be different, thus changing the water pattern of the water path switching structure by switching the position of the water distributor 310.

[0023] In actual use, such as Figure 2As shown, initially, there is no water in the first flow channel 110, the second flow channel 120, and the energy storage chamber 220. The external water supply system begins supplying water to the first flow channel 110. After the water flows into the first flow channel 110, the water pressure acts on the central plug 130. Under this water pressure, the central plug 130 moves to the position blocking the first connection port 140. Water is then transported through the first flow channel 110 to the energy storage chamber 220, increasing the water pressure in the energy storage chamber 220. The piston assembly 210 moves to one side. When the water storage capacity of the energy storage chamber 220 reaches its maximum, the water pressure reaches its maximum. The position to which the piston assembly 210 moves under the maximum water pressure is defined as the third position. When the piston assembly 210 is in the third position, the movable part 320 is in the first position. After the water storage capacity of the energy storage chamber 220 reaches its maximum, no more water can be added, as... Figure 3 As shown, at this time, the central plug 130 moves towards opening the first connecting port 140 due to the water pressure change in the first flow channel 110. The first connecting port 140 opens, and water from the first flow channel 110 is transported to the second flow channel 120. Water from the second flow channel 120 flows into the currently connected outlet flow channel 340 through the water divider 310. When it is necessary to switch the outlet water pattern of the water circuit switching structure, the user shuts off the external water supply system to stop supplying water to the water circuit switching structure. After the first flow channel 110 stops receiving water, the water in the energy storage chamber 220 flows back to the first flow channel 110. As the water pressure in the energy storage chamber 220 decreases, the piston assembly 210 resets to the fourth position. The water in the energy storage chamber 220 is discharged to the outlet flow channel 340 through the first flow channel 110, the first connecting port 140, the second flow channel 120, and the water divider 310. After the water in the energy storage chamber 220 is completely discharged, the piston assembly 210 resets to the fourth position. At this time, the piston assembly 210 pushes the movable part 320 to the second position, and the movable part 320 simultaneously pushes the water distributor 310 to move, so that the water distributor 310 enters the position to be rotated or rotates a certain angle. The user restarts the external water supply system, and the water supply system resumes supplying water to the first flow channel 110, continuing the process of the water pressure in the energy storage chamber 220 gradually increasing. The piston moves to the third position, at which time the movable part 320 moves back to the first position, and the water distributor 310 moves along the direction of the movable part 320's reset, while under the guidance of the guide part 330, it further rotates to be aligned with the next water outlet flow channel 340, thus completing the switching of the water distributor 310 and the water outlet channel. The entire switching process is hydraulically controlled, requiring no electrical control components, battery replacement, or charging. Under the water storage and drainage function of the energy storage chamber 220, the switching operation can still be achieved even when the water pressure of the external water supply system is lower than 0.05MPa. The structure is low-cost and easy to operate.

[0024] In one embodiment, such as Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the guide member 330 has a guide cavity 331, which can be cylindrical. Multiple first guide ribs 332 are provided on the inner wall of the guide cavity 331. Each first guide rib 332 is distributed sequentially at intervals around the central axis of the guide cavity 331, extending parallel to the central axis. Each end of the first guide rib 332 has a first guide slope 333. The first guide slope 333 on each first guide rib 332 has the same inclination direction around the central axis of the guide cavity 331. The movable member 320 is a cylindrical structure, coaxially passing through the guide cavity 331, and can translate axially relative to the guide cavity 331. The movable member 320 has several second guide ribs 321. The number of second guide ribs 321 is the same as the number of intervals formed between the first guide ribs 332. The second guide ribs 321 are paired and passed between the intervals of adjacent first guide ribs 332. When the movable part 320 moves relative to the guide cavity 331, the second guide rib 321 slides relative to the gap formed between each of the first guide ribs 332. A second guide slope 322 is provided on the end of the second guide rib 321 located on the same side as the first guide slope 333, and the inclination directions of the second guide slope 322 and the first guide slope 333 are consistent. The water distribution part 310 is provided with a plurality of third guide ribs 311 distributed sequentially and at intervals around the central axis of the water distribution part 310. The extending direction of the third guide ribs 311 is parallel to the central axis of the water distribution part 310. Each third guide rib 311 is cylindrical in its distribution position. Each third guide rib 311 extends into the guide cavity 331. The water distribution part 310, the movable part 320, and the guide cavity 331 are in a coaxial position. Figure 5As shown, the water distribution component 310 is located above the movable component 320. The first guide slope 333 is located at the upper end of the first guide rib 332, and the second guide slope 322 is located at the upper end of the second guide rib 321. Initially, the movable component 320 is in the first position, the second guide slope 322 is lower than the first guide slope 333, and the third guide rib 311 passes downward into the gap between two adjacent first guide ribs 332 and abuts against the second guide slope 322. The second guide rib 321 supports the third guide rib 311. When the movable component 320 moves from the first position to the second position, the second guide rib 321 slides upward relative to the first guide rib 332, and the second guide rib 321 lifts the third guide rib 311. When the movable component 320 moves to the second position, the second guide slope 322 is higher than the first guide slope 333, and the third guide rib 311 slides along the second guide slope 322 and slides down onto the first guide slope 333. The water distribution component 310 then rotates by a certain angle. When the movable component 320 moves from the second position to the first position, it moves downward relative to the guide cavity 331 until the second guide slope 322 descends below the first guide slope 333. The lower end of the third guide rib 311 slides along the first guide slope 333 and falls into the gap between two adjacent first guide ribs 332. This causes the water-dividing component 310 to rotate further to align with the next water outlet channel 340. In this manner, the movable component 320 moves from the first position to the second position and then from the second position to the first position, while simultaneously completing a position rotation switch of the water-dividing component 310 with the cooperation of the guide component 330.

[0025] The movable component 320 moves between the first and second positions, which can be driven by the piston assembly 210. Alternatively, it can be, as... Figure 4 and Figure 5As shown, the water outlet mechanism 300 also includes a first elastic element 350 and a second elastic element 360. The first elastic element 350 and the second elastic element 360 can be components such as springs. The first elastic element 350 can be installed between the movable member 320 and the water distribution member 310, and the first elastic element 350 applies an elastic force to the movable member 320, causing the movable member 320 to move to a first position. The piston assembly 210 pushes the movable member 320 to a second position, and the movable member 320 returns to the first position under the elastic action of the first elastic element 350 after losing the thrust of the piston assembly 210. Alternatively, when the water pressure in the energy storage chamber 220 increases, the piston assembly 210 moves to a third position and moves away from the movable member 320, and the movable member 320 moves to the first position. When the water pressure in the energy storage chamber 220 decreases, the piston assembly 210 moves to a fourth position, the plug assembly abuts against the movable member 320 and pushes the movable member 320 to the second position. The second elastic element 360 can be installed between the inner wall of the second flow channel 120 and the water distribution element 310. The second elastic element 360 applies an elastic force to the water distribution element 310, causing the water distribution element 310 to move closer to the movable element 320. When the movable element 320 moves from the first position to the second position, the movable element 320 pushes the water distribution element 310 to translate axially. When the movable element 320 moves from the second position to the first position, the water distribution element 310 moves with the movable element 320 towards the first position under the elastic action of the second elastic element 360.

[0026] Based on the above embodiments, such as Figure 1 and Figure 2 As shown, the drive mechanism 200 also includes a cylinder 230. The piston assembly 210 includes a plug 211, a linkage 240, and a third elastic member 212. The plug 211 is movably mounted in the cylinder 230. The plug 211 divides the interior of the cylinder 230 into a pressure chamber and an energy storage chamber 220. The third elastic member 212, which may be a spring or similar component, is mounted in the pressure chamber. The third elastic member 212 applies an elastic force to the plug 211, causing the plug 211 to move to a fourth position. When water enters the energy storage chamber 220, the energy storage chamber 220 gradually increases in size, the plug 211 moves to the third position, and the pressure chamber gradually decreases in size. When water is drained from the energy storage chamber 220, the energy storage chamber 220 gradually decreases in size, the plug 211 moves to the fourth position under the action of the third elastic member 212, and the pressure chamber gradually increases in size. A portion of the plug 211 can extend out of the cylinder 230 in the form of a rod. The portion of the plug 211 extending out of the cylinder 230 is connected to the linkage 240. The plug 211 drives the linkage 240 to move, and the linkage 240 is linked with the movable part 320.

[0027] Among them, such as Figure 2 and Figure 3As shown, the linkage 240 includes a first link 241, a second link 242, and a third link 243. A support plate extends from the outer side of the cylinder 230. One end of the first link 241 is hinged to the plug 211, and the other end of the first link 241 is hinged to one end of the second link 242. The hinge point of the first link 241 and the second link 242 is defined as the first hinge point 244. The other end of the second link 242 is hinged to one end of the third link 243. The hinge point of the second link 242 and the third link 243 is defined as the second hinge point 245. The second link 242 is hinged to the support plate. The hinge point of the second link 242 and the support plate is defined as the third hinge point 246. The third hinge point 246 is located between the first hinge point 244 and the second hinge point 245. The third hinge point 246 is closer to the second hinge point 245, meaning the distance between the second hinge point 245 and the third hinge point 246 is less than the distance between the first hinge point 244 and the third hinge point 246. The third link 243 is slidably mounted on the support plate. A slide rail can be provided on the support plate, and the third link 243 slides on the slide rail, guiding the movement of the third link 243. Figure 3 As shown, when the plug 211 moves from the fourth position to the third position, the plug 211 drives the first connecting rod 241 to move. The first connecting rod 241 drives the second connecting rod 242 to rotate around the third connecting rod 246 through the first hinge point 244. The second connecting rod 242 drives the third connecting rod 243 to translate through the second hinge point 245, and the third connecting rod 243 moves away from the moving part 320. Figure 2 When the plug 211 moves from the third position to the fourth position, it drives the first connecting rod 241 to move. The first connecting rod 241 drives the second connecting rod 242 to rotate around the third connecting rod 246 via the first hinge point 244. The second connecting rod 242 drives the third connecting rod 243 to translate via the second hinge point 245. The third connecting rod 243 approaches and abuts against the movable part 320, pushing the movable part 320 from the first position to the second position. The linkage 240 forms a force-saving lever structure, making it easier to push the movable part 320 to move when the plug moves.

[0028] In one embodiment, such as Figure 2 , Figure 3 and Figure 11As shown, the central bolt 130 has a first pressure-bearing surface 131, a second pressure-bearing surface 132, and a third pressure-bearing surface 133. The axial direction of the central bolt 130 is left-right, as shown in the diagram. The central bolt 130 can be shaped similarly to a dumbbell. The left side of the right end of the central bolt 130 is the first pressure-bearing surface 131, the right side of the left end of the central bolt 130 is the second pressure-bearing surface 132, and the right side of the right end of the central bolt 130 is the third pressure-bearing surface 133. The first pressure-bearing surface 131 and the second pressure-bearing surface 132 are arranged opposite each other, with both the second pressure-bearing surface 132 and the third pressure-bearing surface 133 facing to the right, and the first pressure-bearing surface 131 facing to the left. The central bolt 130 passes through the first connecting port 140. The right end of the central bolt 130 is closer to the energy storage cavity 220 than the left end. The area of ​​the first pressure-bearing surface 131 is larger than the area of ​​the second pressure-bearing surface 132, and the sum of the areas of the second pressure-bearing surface 132 and the third pressure-bearing surface 133 is greater than the area of ​​the first pressure-bearing surface 131. The first pressure-bearing surface 131 faces the first connecting port 140, and the third pressure-bearing surface 133 faces the energy storage cavity. When water initially enters the first flow channel 110, the water pressure acts on the first pressure-bearing surface 131 and the second pressure-bearing surface 132. Since the area of ​​the first pressure-bearing surface 131 is larger than the area of ​​the second pressure-bearing surface 132, the force on the first pressure-bearing surface 131 is greater, causing the central plug 130 to move to the right, and the left end of the central plug 130 blocks the first connecting port 140. Water flows through the first flow channel 110 into the energy storage cavity 220. When the energy storage cavity 220 reaches its maximum water storage capacity, the water pressure in the first flow channel 110 simultaneously acts on the first pressure-bearing surface 131, the second pressure-bearing surface 132, and the third pressure-bearing surface 133. Since the sum of the areas of the second pressure-bearing surface 132 and the third pressure-bearing surface 133 is greater than the area of ​​the first pressure-bearing surface 131, the sum of the forces acting on the second pressure-bearing surface 132 and the third pressure-bearing surface 133 is greater than the forces acting on the first pressure-bearing surface 131. The central bolt 130 moves to the left, the first connecting port 140 opens, and the water in the first flow channel 110 is transported to the second flow channel 120. At the same time, the energy storage cavity 220 maintains the maximum water storage capacity.

[0029] In one embodiment, such as Figure 8As shown, the water distribution component 310 can be configured in a disc shape. The water distribution component 310 has a second port 312. The second port 312 rotates with the water distribution component 310 and sequentially switches to a position opposite to the inlet end 341 of one of the outlet channels 340. The second channel 120 communicates with the outlet channel 340 through the second port 312. The water distribution component 310 includes a water distribution disc 313. The second port 312 is formed on the water distribution disc 313. The water outlet mechanism 300 also includes an outlet component 370. A guide component 330 is installed on the outlet component 370, defining each outlet channel 340 between the outlet component 370 and the guide component 330. The inlet end 341 of each outlet channel 340 is formed on the guide component 330. When the movable part 320 is in the first position, the water distribution plate 313 abuts against the guide part 330, the second port 312 is aligned with one of the water inlets 341, and the water distribution plate 313 blocks the other water inlets 341. When the movable part 320 moves to the second position, it pushes the water distribution plate 313 away from the second port 312, reducing the friction when the water distribution plate 313 rotates and ensuring the smoothness of the water distribution plate 313 rotation.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, references to terms such as "some specific embodiments" 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 the present invention. In this specification, 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.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A waterway switching structure, characterized by comprising: include: The water inlet assembly (100) includes a first flow channel (110), a second flow channel (120) and a central plug (130). A first connecting port (140) is provided between the first flow channel (110) and the second flow channel (120). The central plug (130) moves due to the change in water pressure difference on both sides to open or block the first connecting port (140). The drive mechanism (200) includes a piston assembly (210) and an energy storage chamber (220), the energy storage chamber (220) being connected to the first flow channel (110), and the piston assembly (210) moving in response to changes in water pressure in the energy storage chamber (220); The water outlet mechanism (300) includes a water distribution component (310), a movable component (320), a guide component (330), and at least two water outlet channels (340). The water distribution component (310) is rotatably disposed between the second channel (120) and each of the water outlet channels (340) to sequentially switch the second channel (120) to communicate with one of the water outlet channels (340). The movable component (320) is linked with the piston assembly (210). The movable component (320) can translate relative to the guide component (330) between a first position and a second position. The water distribution component (310) can translate with the movable component (320) and rotate along the guide component (330).

2. The waterway switching structure according to claim 1, characterized in that: The guide member (330) is provided with a guide cavity (331), and a first guide rib (332) is provided on the inner wall of the guide cavity (331). Multiple first guide ribs (332) are distributed sequentially at intervals around the central axis of the guide cavity (331). The ends of the first guide ribs (332) are provided with first guide inclined surfaces (333). The movable member (320) is coaxially and movably inserted through the guide cavity (331). The movable member (320) is provided with a plurality of second guide ribs (321). 1) The second guide ribs (321) are paired and inserted between the intervals of two adjacent first guide ribs (332). The end of the second guide rib (321) is provided with a second guide slope (322). The inclination direction of each first guide slope (333) and each second guide slope (322) around the central axis of the guide cavity (331) is consistent. The water distribution component (310) is provided with a plurality of third guide ribs (311) that are sequentially spaced around its central axis. Each third guide rib (311) extends into the guide cavity (331). When the movable part (320) moves from the first position to the second position, the second guide slope (322) is paired with the end of the third guide rib (311), and the third guide rib (311) slides down along the second guide slope (322) to the first guide slope (333). When the movable part (320) moves from the second position to the first position, the third guide rib (311) slides along the first guide ramp (333) and inserts into the interval between two adjacent first guide ribs (332).

3. The waterway switching structure according to claim 1, characterized in that: The water outlet mechanism (300) further includes a first elastic element (350) and a second elastic element (360). The first elastic element (350) applies an elastic force to the movable element (320) to move it toward the first position, and the second elastic element (360) applies an elastic force to the water distribution element (310) to move it toward the movable element (320).

4. The waterway switching structure according to claim 1 or 3, characterized in that: When the water pressure in the energy storage chamber (220) increases, the piston assembly (210) moves to the third position and moves away from the movable part (320), and the movable part (320) moves to the first position; when the water pressure in the energy storage chamber (220) decreases, the piston assembly (210) moves to the fourth position, and the piston assembly (210) abuts against the movable part (320) and pushes the movable part (320) to the second position.

5. The waterway switching structure according to claim 4, characterized in that: The drive mechanism (200) further includes a cylinder (230), and the piston assembly (210) includes a plug (211), a linkage (240), and a third elastic member (212). The plug (211) is movably installed in the cylinder (230). The plug (211) divides the interior of the cylinder (230) into a pressure chamber and an energy storage chamber (220). The third elastic member (212) applies an elastic force to the plug (211) to move it to the fourth position. A portion of the plug (211) extends out of the cylinder (230) and is connected to the linkage (240). The linkage (240) is linked with the movable member (320).

6. The waterway switching structure according to claim 5, characterized in that: The linkage (240) includes a first connecting rod (241), a second connecting rod (242), and a third connecting rod (243). A support plate extends from the outer side of the cylinder (230). One end of the first connecting rod (241) is hinged to the plug (211), and the other end of the first connecting rod (241) is hinged to one end of the second connecting rod (242), with the hinge point being the first hinge point (244). The other end of the second connecting rod (242) is hinged to one end of the third connecting rod (243), with the hinge point being the second hinge point. (245), the second link (242) is hinged to the support plate and the hinge point is the third hinge point (246), the third hinge point (246) is located between the first hinge point (244) and the second hinge point (245), and the third hinge point (246) is closer to the second hinge point (245). The third link (243) is slidably mounted on the support plate and can abut against or away from the movable member (320).

7. The waterway switching structure according to claim 1, characterized in that: The central bolt (130) has a first pressure-bearing surface (131), a second pressure-bearing surface (132), and a third pressure-bearing surface (133). The first pressure-bearing surface (131) and the second pressure-bearing surface (132) are arranged opposite to each other. The second pressure-bearing surface (132) and the third pressure-bearing surface (133) face the same direction. The area of ​​the first pressure-bearing surface (131) is larger than the area of ​​the second pressure-bearing surface (132). The sum of the areas of the second pressure-bearing surface (132) and the third pressure-bearing surface (133) is larger than the area of ​​the first pressure-bearing surface (131). The first pressure-bearing surface (131) faces the first connecting port (140), and the third pressure-bearing surface (133) faces the energy storage cavity (220).

8. The water passage switching structure according to claim 1 or 2, characterized by: The water distribution component (310) is provided with a second port (312). The second port (312) rotates with the water distribution component (310) and is switched to be opposite to the inlet end (341) of one of the water outlet channels (340). The second channel (120) is connected to the water outlet channel (340) through the second port (312).

9. The waterway switch structure according to claim 8, characterized by: The water distribution component (310) includes a water distribution plate (313), and the second port (312) is opened on the water distribution plate (313). The water outlet mechanism (300) also includes a water outlet component (370). Each water outlet channel (340) is defined between the water outlet component (370) and the guide component (330). Each water inlet (341) is opened on the guide component (330). When the movable component (320) is in the first position, the water distribution plate (313) abuts against the guide component (330), the second port (312) is opposite to one of the water inlets (341), and the water distribution plate (313) blocks the other water inlets (341).

10. A water outlet device, characterized in that: Includes the waterway switching structure as described in any one of claims 1 to 9.

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