Water outlet device

Abstract

The utility model discloses a water outlet device which is characterized in that a water inlet main body comprises a first cavity and a second cavity, and a water inlet section used for water inlet is arranged between the first cavity and the second cavity; the water outlet mechanism is communicated with the first cavity; the center piece penetrates through the water inlet section and is provided with a first end part and a second end part, the pressure bearing area of the first end part is smaller than that of the second end part, and the center piece is configured to move in the water inlet section according to the pressure difference change of the first end part and the second end part; the piston piece is installed in the second cavity, and the piston piece is configured to move towards the first position along with the increase of the water pressure of the second cavity and reset towards the second position along with the decrease of the water pressure of the second cavity; the switching mechanism moves along with the piston piece to switch the water outlet mode of the water outlet mechanism; through the energy storage and pressure building effect of the second cavity, the center piece and the piston piece can move smoothly, then it is guaranteed that the switching mechanism can switch the water outlet mode of the water outlet mechanism smoothly, and the water outlet mechanism can be suitable for the water pressure working condition within the large pressure range.

Description

Technical Field

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

[0002] Some existing water outlet devices, such as overhead sprayers, use water pressure to switch water paths and change the water outlet mode. However, if the water pressure in the water supply system is low, the water outlet device cannot perform the switching function. Conversely, if the water pressure is high, the back pressure in the water outlet device's pipeline is large, causing a functional lag and delay in the switching components, preventing smooth switching. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a water outlet device.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] The water outlet device according to a first aspect embodiment of the present invention includes:

[0006] The water inlet body includes a first cavity and a second cavity, and a water inlet section for water intake is provided between the first cavity and the second cavity;

[0007] A water outlet mechanism, which is connected to the first cavity;

[0008] A central component, which is disposed in the water inlet section, has a first end and a second end, wherein the pressure-bearing area of ​​the first end is smaller than that of the second end, and the central component is configured to move in the water inlet section according to the pressure difference between the first end and the second end, so as to open or close the communication between the water inlet section and the first cavity through the first end.

[0009] A piston assembly is installed in the second chamber and is configured to move to a first position as the water pressure in the second chamber increases and to return to a second position as the water pressure in the second chamber decreases.

[0010] A switching mechanism is connected between the water outlet mechanism and the piston member. The switching mechanism switches the water outlet mode of the water outlet mechanism as the piston member moves.

[0011] The water outlet device according to the embodiment of this utility model has at least the following beneficial effects: through the energy storage and pressure-holding effect of the second chamber, the central component and the piston component can move smoothly, thereby ensuring that the switching mechanism can smoothly switch the water outlet mode of the water outlet mechanism, and can be applied to water pressure conditions with a wide pressure range.

[0012] According to some embodiments of the present invention, the first end and the second end are connected by a connecting shaft. The surface of the first end facing the second end is a first pressure-bearing surface, the surface of the second end facing the first end is a second pressure-bearing surface, and the surface of the second end away from the first end is a third pressure-bearing surface. The area of ​​the first pressure-bearing surface is smaller than the area of ​​the second pressure-bearing surface, and the area of ​​the first pressure-bearing surface is smaller than the area of ​​the third pressure-bearing surface.

[0013] According to some embodiments of the present invention, the first end extends into the first cavity, and the first pressure-bearing surface is a conical surface with an outer diameter that gradually increases from the first end to the second end.

[0014] According to some embodiments of this utility model, a water-passing component is installed at the connection between the first cavity and the water inlet section. The water-passing component is hollow inside to form a water-passing cavity. The two ends of the water-passing cavity are respectively formed as a first water inlet and a second water inlet. The water-passing cavity is connected to the first cavity through the first water inlet and to the water inlet section through the second water inlet. The opening area of ​​the first water inlet is smaller than the opening area of ​​the second water inlet. The central component is slidably inserted into the water-passing cavity. When the central component moves, the opening and closing of the first water inlet is controlled by the first end.

[0015] According to some embodiments of the present invention, a first guide groove is provided inside the water passage cavity, the extension direction of the first guide groove is consistent with the movement direction of the central member, and the central member is provided with an extension edge, which is slidably connected to the first guide groove.

[0016] According to some embodiments of the present invention, the piston includes a plug body and an elastic member. The plug body is slidably mounted in the second cavity, and the elastic member applies an elastic force to the plug body to move it to the second position.

[0017] According to some embodiments of the present invention, the switching mechanism includes a lever assembly, a push rod, and a ratchet. The lever assembly is connected between the piston and the push rod. When the piston moves to the first position, the push rod moves away from the ratchet. When the piston moves to the second position, the push rod abuts against the ratchet and pushes the ratchet to rotate in a first direction. The water outlet mechanism includes a water divider plate, and the ratchet is connected to the water divider plate.

[0018] According to some embodiments of the present invention, the switching mechanism further includes a stop member that can abut against the ratchet to restrict the ratchet from rotating in a second direction, the first direction being opposite to the second direction.

[0019] According to some embodiments of the present invention, the lever assembly includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively hinged to one end of the piston and one end of the second connecting rod. The other end of the second connecting rod is hinged to one end of the push rod. The second connecting rod is provided with a fulcrum that is hinged to the water inlet body. The fulcrum is closer to the end of the second connecting rod that is hinged to the push rod.

[0020] According to some embodiments of the present invention, the push rod includes a first rod segment and a second rod segment that are hinged to each other. One end of the first rod segment is hinged to the lever assembly, and one end of the second rod segment faces the ratchet. The water inlet body is provided with a second guide groove. The second rod segment is slidably inserted into the second guide groove. A ball is provided on the second rod segment. The ball elastically extends and retracts relative to the second rod segment in a direction perpendicular to the translation of the second rod segment. One end of the ball abuts against the groove wall of the second guide groove.

[0021] 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

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the structural classification of the water outlet device;

[0024] Figure 2 This is a schematic diagram of the water outlet device when it is initially empty of water;

[0025] Figure 3 yes Figure 2 A schematic diagram of the water intake section during water intake;

[0026] Figure 4 yes Figure 3 A schematic diagram of the piston moving to the first position;

[0027] Figure 5 This is a sectional view of the central component;

[0028] Figure 6 This is an exploded view of the central component and the water-passing component;

[0029] Figure 7 This is a structural diagram of the water passage component.

[0030] Reference numerals: Water inlet body 100; First cavity 110; Second cavity 120; Water inlet section 130; Second guide groove 140; Water outlet mechanism 200; Water distribution plate 210; Central component 300; First end 310; First pressure bearing surface 311; Second end 320; Second pressure bearing surface 321; Third pressure bearing surface 322; Connecting shaft 330; Extension edge 340; Piston component 400; Plug body 410; Elastic component 420; Switching mechanism 500; Lever assembly 510; First connecting rod 511; Second connecting rod 512; Fulcrum 513; Push rod 520; First rod segment 521; Second rod segment 522; Ball bearing 523; Ratchet 530; Stop component 540; Water passage component 600; Water passage cavity 610; First water passage 620; Second water passage 630; First guide groove 640. Detailed Implementation

[0031] 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.

[0032] This utility model relates to a water outlet device, including a water inlet body 100, a water outlet mechanism 200, a central component 300, a piston component 400, and a switching mechanism 500. The water outlet device can be a water-using product such as a shower head or overhead sprayer.

[0033] like Figure 1 and Figure 2As shown, the water inlet body 100 includes a first cavity 110 and a second cavity 120, with a water inlet section 130 between the first cavity 110 and the second cavity 120. In the illustrated direction, the left end of the water inlet section 130 communicates with the first cavity 110, and the right end of the water inlet section 130 communicates with the second cavity 120. The water inlet section 130 is used for water intake, and an inlet can be opened on the side wall of the water inlet section 130. The inlet can be connected to an external water supply system via an inlet pipe. The water outlet mechanism 200 communicates with the first cavity 110. The water outlet mechanism 200 can be provided with multiple water outlet channels, spraying different water shapes from different outlet channels to achieve different water outlet modes. A central member 300 passes through the water inlet section 130 and can slide within the water inlet section 130. The central member 300 has a first end 310 and a second end 320, with the pressure-bearing area of ​​the first end 310 being smaller than that of the second end 320. The first end 310 faces the first cavity 110, and the second end 320 faces the second cavity 120. When water flows into the inlet section 130, the water flow impacts the first end 310 and the second end 320. Due to the different pressure-bearing areas of the first end 310 and the second end 320, a pressure difference is formed between them. Driven by this pressure difference, the central member 300 moves towards the end with higher pressure. As the central member 300 moves, the first end 310 can move to open or close the connection between the inlet section 130 and the first cavity 110. The piston member 400 is installed in the second cavity 120, and it moves according to the water pressure changes in the second cavity 120. When the water pressure in the second cavity 120 rises, the piston member 400 moves towards the first position, which is its limit position. As the piston member 400 moves towards the first position, the space between the second cavity 120 and the piston member 400 gradually increases. When the water pressure in the second chamber 120 decreases, the piston 400 can move to the second position to reset, and the space between the second chamber 120 and the piston 400 gradually shrinks. The switching mechanism 500 is connected between the water outlet mechanism 200 and the piston 400. When the piston 400 moves, it will drive the switching mechanism 500 to move, thereby changing the water outlet mode of the water outlet mechanism 200.

[0034] In actual use, such as Figure 2 As shown, initially, piston 400 is in the second position. Water flows into inlet section 130, impacting the first end 310 and second end 320 of center member 300. Figure 5 As shown, at this time, water forms a force F1 on the first end 310 and a force F2 on the second end 320. F1 is directed towards the first cavity 110 (to the left), and F2 is directed towards the second cavity 120 (to the right). F1 is less than F2, and the central component 300 moves towards the second cavity 120. Figure 3As shown, the first end 310 blocks the connection between the inlet section 130 and the first chamber 110, preventing water from flowing from the inlet section 130 into the first chamber 110. Water flows through the inlet section 130 into the second chamber 120. The water pushes the piston 400 from the second position to the first position until it stops at the first position. Water in the inlet section 130 can no longer flow into the second chamber 120. Figure 4 As shown, at this time, the water in the second chamber 120 exerts a force F3 opposite to F2 on the second end 320. The force F3 cancels out the force F2, and the central member 300 moves to the left under the action of the force F1. The first end 310 leaves the connection between the water inlet section 130 and the first chamber 110. The water in the water inlet section 130 flows into the first chamber 110 and is discharged to the water outlet mechanism 200 through the first chamber 110 for use. When the water inlet section 130 stops entering water, the pressure in the water inlet section 130 decreases rapidly. The water in the second chamber 120 flows through the water inlet section 130 to the first chamber 110 under the reset action of the piston member 400, and the piston member 400 resets to the second position. When the water inlet section 130 enters water again, the central member 300 and the piston member 400 repeat the above actions. When the piston member 400 changes position between the first and second positions, it drives the switching mechanism 500 to perform a switching action, causing the water outlet mechanism 200 to change the water outlet mode once. During the water intake process of the inlet section 130, the change in force exerted by water on the central component 300 causes the central component 300 to automatically switch positions. Water preferentially flows into the second chamber 120 to gradually accumulate energy and build up pressure until the second chamber 120 is full of water. At this point, the piston component 400 moves to the first position, and the central component 300 opens the first chamber 110, allowing water to flow into the first chamber 110. Regardless of the water pressure of the external water supply system, even if the water pressure is as low as 0.05 MPa or as high as 0.5 MPa, the energy accumulation and pressure building effect of the second chamber 120 allows the central component 300 and the piston component 400 to move smoothly. This ensures that the switching mechanism 500 can smoothly switch the water outlet mode of the water outlet mechanism 200, making it suitable for water pressure conditions with a wide pressure range.

[0035] In some embodiments of this utility model, 5 and Figure 6The first end 310 and the second end 320 are connected by a connecting shaft 330. As shown in the diagram, the first end 310 and the second end 320 are distributed left and right, and the axis of the connecting shaft 330 is oriented left and right. The surface of the first end 310 facing the second end 320 is the first bearing surface 311, that is, the right side of the first end 310 is the first bearing surface 311. The surface of the second end 320 facing the first end 310 is the second bearing surface 321, and the surface of the second end 320 away from the first end 310 is the third bearing surface 322. That is, the left side of the second end 320 is the second bearing surface 321, and the right side is the third bearing surface 322. The area S1 of the first bearing surface 311 is smaller than the area S2 of the second bearing surface 321, and the area S3 of the third bearing surface 322 is smaller than the area S3 of the third bearing surface 322. When water enters the inlet section 130, the water pressure is P, and the applied forces are F1=P*S1, F2=P*S2, and F3=P*S3, thus achieving F1 less than F2. Preferably, the area S3 of the third pressure-bearing surface 322 is greater than or equal to the area S2 of the second pressure-bearing surface 321, ensuring that after the second cavity 120 is filled with water, the central component 300 can quickly move to the left to open the first cavity 110.

[0036] The first end 310 can extend to the left into the first cavity 110. The first pressure-bearing surface 311 faces the water inlet section 130. The connection between the water inlet section 130 and the first cavity 110 can be sealed by the first pressure-bearing surface 311. Alternatively, a sealing ring can be installed on the circumferential sidewall of the first end 310, and the connection between the water inlet section 130 and the first cavity 110 can be sealed by the sealing ring in conjunction with the first end 310. The first pressure-bearing surface 311 is conical, and the outer diameter of the first pressure-bearing surface 311 gradually increases from the first end 310 to the second end 320. The component of the force exerted by the water pressure on the conical surface of the first pressure-bearing surface 311 along the axial direction of the connecting shaft 330 is the aforementioned force F1. The conical shape of the first pressure-bearing surface 311 can increase the structural strength of the connection between the first end 310 and the connecting shaft 330, and prevent the connection between the first end 310 and the connecting shaft 330 from being deformed due to water pressure; at the same time, it can ensure that the area of ​​the first pressure-bearing surface 311 is not too small, and ensure that the force F1 formed is not too small and affects the smooth sliding of the center part 300 towards the first cavity 110.

[0037] In one embodiment, such as Figure 2 , Figure 6 and Figure 7As shown, a water-passing component 600 is installed at the connection between the first cavity 110 and the water inlet section 130. The first cavity 110 and the water inlet section 130 are connected by the water-passing component 600. The interior of the water-passing component 600 is hollow, forming a water-passing cavity 610. The two ends of the water-passing cavity 610 have openings forming a first water-passing port 620 and a second water-passing port 630, respectively. The water-passing cavity 610 is connected to the first cavity 110 through the first water-passing port 620 and to the water inlet section 130 through the second water-passing port 630. The opening area of ​​the first water-passing port 620 is smaller than that of the second water-passing port 630, ensuring that water can flow smoothly into the water-passing cavity 610. The first water-passing port 620 is mainly used to fit with the first end 310 so that it can be blocked or opened by the first end 310. The center component 300 is slidably inserted into the water-passing cavity 610. Both the first end 310 and the second end 320 can be located outside the water passage cavity 610. Water in the inlet section 130 flows into the first cavity 110 through the second water outlet 630, the water passage cavity 610, and the first water outlet 620. Preferably, the cross-sectional area of ​​the second water outlet 630 is less than or equal to the pressure-bearing surface of the second pressure-bearing surface 321. The opening position of the water inlet of the inlet section 130 is located in the space between the second water outlet 630 and the second end 320. A water passage component 600 with a corresponding opening size can be selected according to the shape and cross-sectional area of ​​the first end 310, thereby selecting a corresponding water passage component 600 to match the center component 300 according to the model of the water outlet device.

[0038] Furthermore, such as Figure 6 As shown, a first guide groove 640 is provided inside the water passage cavity 610. The extension direction of the first guide groove 640 is consistent with the movement direction of the central member 300. One or more first guide grooves 640 can be provided, and the central member 300 is provided with an extension edge 340. The extension edge 340 can extend radially from the connecting shaft 330. The extension edge 340 is slidably connected to the first guide groove 640. The sliding engagement between the first guide groove 640 and the extension edge 340 guides the movement of the central member 300, preventing the central member 300 from deflecting and failing to seal the first water passage 620.

[0039] Among them, such as Figure 2 , Figure 3 and Figure 4As shown, the piston component 400 includes a plug body 410 and an elastic element 420. The plug body 410 is slidably mounted in the second cavity 120. A sealing ring can be fitted onto the plug body 410 to increase the watertightness with the second cavity 120. The elastic element 420 can be a spring, which applies an elastic force to the plug body 410, causing it to move to a second position. When the second cavity 120 is accumulating energy, the water entering the second cavity 120 acts on the lower end face of the plug body 410. The force of the water on the plug body 410 is greater than the elastic force applied by the elastic element 420, causing the plug body 410 to move to a first position. When the plug body 410 moves to the first position, the elastic element 420 undergoes compression deformation. When the water supply section 130 stops supplying water, the plug body 410 moves to the second position under the elastic reset action of the elastic element 420, discharging the water from the second cavity 120 into the water supply section 130.

[0040] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the switching mechanism 500 includes a lever assembly 510, a push rod 520, and a ratchet 530. The lever assembly 510 is connected between the piston 400 and the push rod 520. When the piston 400 moves to the first position, the push rod 520 moves away from the ratchet 530. When the piston 400 moves to the second position, the push rod 520 abuts against the ratchet 530, pushing the ratchet 530 to rotate a certain angle in the first direction. The water outlet mechanism 200 includes a water divider plate 210, and the ratchet 530 is connected to the water divider plate 210. When the ratchet 530 rotates a certain angle, the water divider plate 210 rotates synchronously by a certain angle. Through the change in the position of the water divider plate 210, the first chamber 110 is switched to a different water outlet channel than that of the water outlet mechanism 200, thereby changing the water outlet mode. The lever assembly 510 reduces the thrust required for the piston 400 to push the push rod 520 using the lever principle.

[0041] Furthermore, the switching mechanism 500 also includes a stop member 540. The stop member 540 can be a spring or a lever. The stop member 540 can abut against the ratchet 530. The stop member 540 restricts the ratchet 530 from rotating in a second direction, the first direction being opposite to the second direction. In the illustrated direction, when the push rod 520 moves upward, it abuts against the ratchet 530, pushing the ratchet 530 to rotate counterclockwise. The stop member 540 abuts against the ratchet 530, preventing the ratchet 530 from rotating clockwise.

[0042] Specifically, such as Figure 2 , Figure 3 and Figure 4As shown, the lever assembly 510 includes a first connecting rod 511 and a second connecting rod 512. The two ends of the first connecting rod 511 are respectively hinged to one end of the piston component 400 and one end of the second connecting rod 512 via a pivot. The other end of the second connecting rod 512 is hinged to one end of the push rod 520 via a pivot. The second connecting rod 512 has a fulcrum 513 that is hinged to the water inlet body 100. Compared to the hinge points between the fulcrum 513 and the first connecting rod 511 and the second connecting rod 512, the fulcrum 513 is closer to the hinge point between the second connecting rod 512 and the push rod 520, thus achieving the purpose of pushing the push rod 520 with less effort through the second connecting rod 512.

[0043] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the push rod 520 includes a first rod segment 521 and a second rod segment 522 that are hinged to each other. One end of the first rod segment 521 is hinged to the lever assembly 510 via a pivot. One end of the second rod segment 522 faces the ratchet 530, and the end of the second rod segment 522 can be provided with a V-shaped notch to fit with the teeth on the ratchet 530. The water inlet body 100 is provided with a second guide groove 140, and the extension direction of the second guide groove 140 is consistent with the movement direction of the push rod 520. The second rod segment 522 is slidably inserted into the second guide groove 140. A ball bearing 523 is provided on the second rod segment 522. The ball bearing 523 elastically expands and contracts relative to the second rod segment 522 in a direction perpendicular to the translational direction of the second rod segment 522, and one end of the ball bearing 523 abuts against the groove wall of the second guide groove 140. The first rod segment 521, the second rod segment 522, the second connecting rod 512, and the second guide groove 140 cooperate to form a crank-connecting rod mechanism. Under the action of the ball 523, the second rod segment 522 can abut against the side wall of the second guide groove 140, so that the second connecting rod 512 moves in a straight line without shaking, ensuring the stability of the second rod segment 522 when pushing the ratchet 530.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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 water outlet device, characterized in that, include: The water inlet body (100) includes a first cavity (110) and a second cavity (120), and a water inlet section (130) for water inlet is provided between the first cavity (110) and the second cavity (120). A water outlet mechanism (200) is connected to the first cavity (110); A central component (300) is disposed in the water inlet section (130). The central component (300) has a first end (310) and a second end (320). The pressure-bearing area of ​​the first end (310) is smaller than that of the second end (320). The central component (300) is configured to move in the water inlet section (130) according to the pressure difference between the first end (310) and the second end (320) to open or close the connection between the water inlet section (130) and the first cavity (110) through the first end (310). A piston (400) is installed in the second chamber (120) and is configured to move to a first position as the water pressure in the second chamber (120) increases and to return to a second position as the water pressure in the second chamber (120) decreases. A switching mechanism (500) is connected between the water outlet mechanism (200) and the piston (400). The switching mechanism (500) switches the water outlet mode of the water outlet mechanism (200) as the piston (400) moves.

2. The water outlet device according to claim 1, characterized in that: The first end (310) and the second end (320) are connected by a connecting shaft (330). The surface of the first end (310) facing the second end (320) is the first bearing surface (311), the surface of the second end (320) facing the first end (310) is the second bearing surface (321), and the surface of the second end (320) away from the first end (310) is the third bearing surface (322). The area of ​​the first bearing surface (311) is smaller than the area of ​​the second bearing surface (321), and the area of ​​the first bearing surface (311) is smaller than the area of ​​the third bearing surface (322).

3. The water outlet device according to claim 2, characterized in that: The first end (310) extends into the first cavity (110), and the first pressure-bearing surface (311) is a conical surface with an outer diameter that gradually increases from the first end (310) to the second end (320).

4. The water outlet device according to claim 1 or 2, characterized in that: A water-passing component (600) is installed at the connection between the first cavity (110) and the water inlet section (130). The interior of the water-passing component (600) is hollow to form a water-passing cavity (610). The two ends of the water-passing cavity (610) are respectively formed as a first water inlet (620) and a second water inlet (630). The water-passing cavity (610) is connected to the first cavity (110) through the first water inlet (620) and to the water inlet section (130) through the second water inlet (630). The opening area of ​​the first water inlet (620) is smaller than the opening area of ​​the second water inlet (630). The central component (300) is slidably inserted into the water-passing cavity (610). When the central component (300) moves, it controls the opening and closing of the first water inlet (620) through the first end (310).

5. The water outlet device according to claim 4, characterized in that: The water passage cavity (610) is provided with a first guide groove (640) inside. The extension direction of the first guide groove (640) is consistent with the movement direction of the center member (300). The center member (300) is provided with an extension edge (340), which is slidably connected to the first guide groove (640).

6. The water outlet device according to claim 1, characterized in that: The piston (400) includes a plug (410) and an elastic element (420), the plug (410) being slidably mounted in the second cavity (120), and the elastic element (420) applying an elastic force to the plug (410) to move it to the second position.

7. The water outlet device according to claim 1, characterized in that: The switching mechanism (500) includes a lever assembly (510), a push rod (520), and a ratchet (530). The lever assembly (510) is connected between the piston (400) and the push rod (520). When the piston (400) moves to the first position, the push rod (520) moves away from the ratchet (530). When the piston (400) moves to the second position, the push rod (520) abuts against the ratchet (530) and pushes the ratchet (530) to rotate in the first direction. The water outlet mechanism (200) includes a water divider plate (210), and the ratchet (530) is connected to the water divider plate (210).

8. The water outlet device according to claim 7, characterized in that: The switching mechanism (500) further includes a stop (540) that can abut against the ratchet (530) to restrict the ratchet (530) from rotating in a second direction, the first direction being opposite to the second direction.

9. The water outlet device according to claim 7, characterized in that: The lever assembly (510) includes a first connecting rod (511) and a second connecting rod (512). The two ends of the first connecting rod (511) are respectively hinged to one end of the piston (400) and one end of the second connecting rod (512). The other end of the second connecting rod (512) is hinged to one end of the push rod (520). The second connecting rod (512) is provided with a fulcrum (513) that is hinged to the water inlet body (100). The fulcrum (513) is closer to the end of the second connecting rod (512) that is hinged to the push rod (520).

10. The water outlet device according to claim 7, characterized in that: The push rod (520) includes a first rod segment (521) and a second rod segment (522) that are hinged to each other. One end of the first rod segment (521) is hinged to the lever assembly (510), and one end of the second rod segment (522) faces the ratchet (530). The water inlet body (100) is provided with a second guide groove (140). The second rod segment (522) is slidably inserted into the second guide groove (140). The second rod segment (522) is provided with a ball (523). The ball (523) elastically expands and contracts relative to the second rod segment (522) in a translational direction perpendicular to the second rod segment (522). One end of the ball (523) abuts against the groove wall of the second guide groove (140).

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