Water outlet device

Abstract

The invention discloses a water outlet device which comprises a water inlet main body and a water outlet main body, the 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] The present invention relates to the technical field of water-using devices, and particularly to a water outlet device. Background Art

[0002] Some existing water outlet devices, such as shower heads, achieve water path switching to change the water outlet mode through water pressure. However, when the water pressure in the water supply system is relatively low, the water outlet device cannot achieve the switching function. And when the water pressure is relatively high, the back pressure of the pipeline of the water outlet device is large, and the switching component has a function lag delay, and the switching function cannot be carried out smoothly. Summary of the Invention

[0003] The present invention aims to solve at least one of the above technical problems in the related art to some extent. For this purpose, the present invention provides a water outlet device.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

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

[0006] An inlet main body, the inlet main body includes a first chamber and a second chamber, and an inlet section for water inlet is provided between the first chamber and the second chamber;

[0007] A water outlet mechanism, the water outlet mechanism is communicated with the first chamber;

[0008] A central member, the central member passes through the inlet section, the central member has a first end and a second end, the pressure-bearing area of the first end is smaller than the pressure-bearing area of the second end, and the central member is configured to move in the inlet section according to the change of the pressure difference between the first end and the second end, so as to open or close the communication between the inlet section and the first chamber through the first end;

[0009] A piston member, the piston member is installed in the second chamber, and the piston member is configured to move to a first position as the water pressure in the second chamber increases and reset to a second position as the water pressure in the second chamber decreases;

[0010] A switching mechanism, the switching mechanism is connected between the water outlet mechanism and the piston member, and 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 the present invention has at least the following beneficial effects: Through the energy storage and pressure-holding effect of the second chamber, the central member and the piston member 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 in a very large pressure range.

[0012] According to some embodiments of the present invention, the first end portion and the second end portion are connected by a connecting shaft. The surface of the first end portion facing the second end portion is the first pressure-bearing surface, the surface of the second end portion facing the first end portion is the second pressure-bearing surface, and the surface of the second end portion away from the first end portion is the 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 portion extends into the first cavity, and the first pressure-bearing surface is in the shape of a conical surface with an outer diameter gradually increasing in the direction from the first end portion to the second end portion.

[0014] According to some embodiments of the present invention, a water-passing member is installed at the connection between the first cavity and the water inlet section. The interior of the water-passing member is hollow to form a water-passing cavity. The two ends of the water-passing cavity are open to form a first water-passing port and a second water-passing port respectively. The water-passing cavity is communicated with the first cavity through the first water-passing port, and the water-passing cavity is communicated with the water inlet section through the second water-passing port. The opening area of the first water-passing port is smaller than the opening area of the second water-passing port. The central member is slidably inserted through the water-passing cavity, and when the central member moves, it controls the opening and closing of the first water-passing port through the first end portion.

[0015] According to some embodiments of the present invention, a first guiding groove is provided inside the water-passing cavity. The extending direction of the first guiding groove is consistent with the moving direction of the central member. A peripheral edge is provided on the central member, and the peripheral edge is slidably connected to the first guiding groove.

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

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

[0018] According to some embodiments of the present invention, the switching mechanism further includes a stop member, and the stop member can abut against the ratchet to limit the rotation of the ratchet in the second direction. The first direction is opposite to the second direction.

[0019] According to some embodiments of the present invention, the lever group includes a first connecting rod and a second connecting rod. Two ends of the first connecting rod are respectively hinged to one end of the piston member 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. A fulcrum hinged to the water inlet main body is provided on the second connecting rod, and the fulcrum is closer to the end of the second connecting rod hinged to the push rod.

[0020] According to some embodiments of the present invention, the push rod includes a first rod section and a second rod section hinged to each other. One end of the first rod section is hinged to the lever group. One end of the second rod section faces the ratchet wheel. A second guiding groove is provided on the water inlet main body. The second rod section is slidably disposed in the second guiding groove. A ball is provided on the second rod section. The ball elastically expands and contracts relative to the second rod section perpendicular to the translation direction of the second rod section. One end of the ball abuts against the groove wall of the second guiding groove.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

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

[0024] Figure 2 is a schematic diagram of the water outlet device when no water has entered initially;

[0025] Figure 3 is Figure 2 a schematic diagram when the water inlet section of

[0026] Figure 4 is Figure 3 a schematic diagram when the piston member of

[0027] Figure 5 a cross-sectional view of the central member;

[0028] Figure 6 is an exploded schematic diagram of the central member and the water passing member;

[0029] Figure 7 is a schematic diagram of the structure of the water passing member.

[0030] Reference numerals: water inlet main body 100; first chamber 110; second chamber 120; water inlet section 130; second guide groove 140; water outlet mechanism 200; water distribution plate 210; central member 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; edge extension 340; piston member 400; plug body 410; elastic member 420; switching mechanism 500; lever group 510; first connecting rod 511; second connecting rod 512; fulcrum 513; push rod 520; first rod section 521; second rod section 522; ball 523; ratchet wheel 530; stop member 540; water passing member 600; water passing chamber 610; first water passing port 620; second water passing port 630; first guide groove 640. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] The present invention relates to a water outlet device, including a water inlet main body 100, a water outlet mechanism 200, a central member 300, a piston member 400, and a switching mechanism 500. The water outlet device can be a water-using product such as a shower head or a ceiling spray.

[0033] Such as Figure 1 And Figure 2As shown in the figure, the water inlet main body 100 includes a first chamber 110 and a second chamber 120, and a water inlet section 130 is provided between the first chamber 110 and the second chamber 120. In the illustrated direction, the left end of the water inlet section 130 communicates with the first chamber 110, and the right end of the water inlet section 130 communicates with the second chamber 120. The water inlet section 130 is used for water inlet. A water inlet can be provided on the side wall of the water inlet section 130, and the water inlet can be connected to an external water supply system through a water inlet pipe. The water outlet mechanism 200 communicates with the first chamber 110. The water outlet mechanism 200 can be provided with a plurality of water outlet channels, and different water shapes are ejected from different water outlet channels to achieve different water outlet modes. The central member 300 is inserted through the water inlet section 130, and the central member 300 can slide in the water inlet section 130. The central member 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 first end 310 faces the first chamber 110, and the second end 320 faces the second chamber 120. When water flows into the water inlet section 130, the water flow will impact on 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 the first end 310 and the second end 320. Driven by the pressure difference, the central member 300 will move 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 water inlet section 130 and the first chamber 110. The piston member 400 is installed in the second chamber 120, and the piston member 400 moves with the change of the water pressure in the second chamber 120. When the water pressure in the second chamber 120 rises, the piston member 400 moves to the first position, and the first position is the limit position when it moves to the first position. When the piston member 400 moves to the first position, the space formed between the second chamber 120 and the piston member 400 gradually becomes larger. When the water pressure in the second chamber 120 drops, the piston member 400 can move back to the second position, and the space formed between the second chamber 120 and the piston member 400 gradually shrinks. The switching mechanism 500 is connected between the water outlet mechanism 200 and the piston member 400. When the piston member 400 moves, it will drive the switching mechanism 500 to move, thereby changing the water outlet mode of the water outlet mechanism 200.

[0034] During actual use, as Figure 2 shown, initially the piston member 400 is located at the second position. Water flows into the water inlet section 130, and the water will impact on the first end 310 and the second end 320 of the central member 300. As Figure 5 shown, at this time, a force F1 is formed on the first end 310 by the water, and a force F2 is formed on the second end 320 by the water. F1 faces the first chamber 110 (to the left), F2 faces the second chamber 120 (to the right), F1 is less than F2, and the central member 300 moves towards the second chamber 120. As Figure 3As shown, the first end portion 310 seals the connection between the water inlet section 130 and the first chamber 110, and water cannot flow from the water inlet section 130 into the first chamber 110. Water flows into the second chamber 120 through the water inlet section 130. The water pushes the piston member 400 from the second position towards the first position until the piston member 400 moves to the first position and stops at the first position. The water in the water inlet section 130 can no longer flow into the second chamber 120. As Figure 4 shown, at this time, the water in the second chamber 120 exerts a force F3 on the second end portion 320 in the direction opposite to the direction of F2. The force F3 cancels out the force F2. Under the action of the force F1, the central member 300 moves to the left, the first end portion 310 leaves the connection between the water inlet section 130 and the first chamber 110, and the water in the water inlet section 130 flows into the first chamber 110 and is discharged through the first chamber 110 for use by the water outlet mechanism 200. When the water inlet section 130 stops admitting water, the pressure in the water inlet section 130 rapidly decreases. The water in the second chamber 120 flows through the water inlet section 130 into the first chamber 110 and is discharged 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 admits water again, the central member 300 and the piston member 400 repeat the above actions. When the piston member 400 changes its position between the first position and the second position, it drives the switching mechanism 500 to perform a switching action, causing the water outlet mechanism 200 to change its water outlet mode once. During the water inlet process of the water inlet section 130, the central member 300 automatically switches its position due to the change in the force exerted by the water on the central member 300. The water first flows into the second chamber 120 to gradually store energy and build up pressure until the second chamber 120 is filled with water, the piston member 400 moves to the first position, and the central member 300 opens the first chamber 110, and the water flows into the first chamber 110. Regardless of the water pressure of the external water supply system, even if the water pressure of the water supply system is as low as 0.05 Mpa or as high as 0.5 MPa, through the energy storage and pressure build-up effect of the second chamber 120, the central member 300 and the piston member 400 can move smoothly, thereby ensuring that the switching mechanism 500 can smoothly switch the water outlet mode of the water outlet mechanism 200 and can be applied to water pressure conditions within a large pressure range.

[0035] In some embodiments of the present invention, 5 and Figure 6, the first end portion 310 and the second end portion 320 are connected by a connecting shaft 330. In the illustrated direction, the first end portion 310 and the second end portion 320 are distributed left and right, and the axial direction of the connecting shaft 330 is left and right. The surface of the first end portion 310 facing the second end portion 320 is the first pressure-bearing surface 311, that is, the right side surface of the first end portion 310 is the first pressure-bearing surface 311. The surface of the second end portion 320 facing the first end portion 310 is the second pressure-bearing surface 321, and the surface of the second end portion 320 away from the first end portion 310 is the third pressure-bearing surface 322. That is, the left side surface of the second end portion 320 is the second pressure-bearing surface 321, and the right side surface is the third pressure-bearing surface 322. Among them, the area S1 of the first pressure-bearing surface 311 is smaller than the area S2 of the second pressure-bearing surface 321, and the area S1 of the first pressure-bearing surface 311 is smaller than the area S3 of the third pressure-bearing surface 322. When the water inlet section 130 intakes water, the water inlet pressure is P, the acting force F1 = P * S1, the acting force F2 = P * S2, and the acting force F3 = P * S3, so that F1 is less than F2 is achieved. 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 the central member 300 can quickly move to the left to open the first chamber 110 after the second chamber 120 is filled with water.

[0036] Among them, the first end portion 310 can extend leftward into the first chamber 110. The first pressure-bearing surface 311 faces the water inlet section 130. The connection between the water inlet section 130 and the first chamber 110 can be sealed by the first pressure-bearing surface 311. It can also be that a sealing ring is installed on the circumferential side wall of the first end portion 310, and the connection between the water inlet section 130 and the first chamber 110 is blocked by the cooperation of the sealing ring and the first end portion 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 portion 310 to the second end portion 320. The component of the acting force of 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 above-mentioned acting force F1. The conical shape of the first pressure-bearing surface 311 can increase the structural strength of the connection between the first end portion 310 and the connecting shaft 330, avoiding deformation of the connection between the first end portion 310 and the connecting shaft 330 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, ensuring that the formed acting force F1 is not too small to affect the smooth sliding of the central member 300 in the direction of the first chamber 110.

[0037] In one embodiment, such as Figure 2 , Figure 6 and Figure 7As shown, a water passing member 600 is installed at the connection between the first chamber 110 and the water inlet section 130. The first chamber 110 and the water inlet section 130 are connected through the water passing member 600. The inside of the water passing member 600 is hollow to form a water passing cavity 610. The two ends of the water passing cavity 610 are respectively opened to form a first water passing port 620 and a second water passing port 630. The water passing cavity 610 is connected to the first chamber 110 through the first water passing port 620, and the water passing cavity 610 is connected 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 the opening area 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 be adapted to the first end portion 310 so as to be blocked or opened by the first end portion 310. The central member 300 is slidably disposed through the water passing cavity 610. It is possible that both the first end portion 310 and the second end portion 320 are located outside the water passing cavity 610. The water in the water inlet section 130 flows into the first chamber 110 from the second water passing port 630, the water passing cavity 610, and the first water passing port 620. Preferably, the cross-sectional area of the second water passing port 630 is less than or equal to the bearing surface connection of the second bearing surface 321. The opening position of the water inlet of the water inlet section 130 is located at the spatial position between the second water passing port 630 and the second end portion 320. The water passing member 600 with a corresponding opening size can be selected according to the shape and cross-sectional area size of the first end portion 310, so as to select the corresponding water passing member 600 according to the model of the water outlet device to be paired with the central member 300.

[0038] Further, as Figure 6 shown, a first guiding groove 640 is provided on the inside of the water passing cavity 610. The extending direction of the first guiding groove 640 is the same as the moving direction of the central member 300. One or more first guiding grooves 640 can be provided. A peripheral edge 340 is provided on the central member 300. The peripheral edge 340 can extend radially from the connecting shaft 330. The peripheral edge 340 is slidably connected to the first guiding groove 640. The movement of the central member 300 is guided through the sliding fit between the first guiding groove 640 and the peripheral edge 340, preventing the central member 300 from being deflected and unable to block the first water passing port 620.

[0039] Among them, as Figure 2 、 Figure 3 and Figure 4As shown, the piston member 400 includes a piston body 410 and an elastic member 420. The piston body 410 is slidably mounted in the second chamber 120. A sealing ring can be sleeved on the piston body 410 to increase the watertightness with the second chamber 120. The elastic member 420 can be a spring, and the elastic member 420 applies an elastic force to the piston body 410 to move it toward the second position. When the second chamber 120 stores energy, the water entering the second chamber 120 acts on the lower end surface of the piston body 410, and the force of the water on the piston body 410 is greater than the elastic force applied by the elastic member 420 to the piston body 410, causing the piston body 410 to move toward the first position. When the piston body 410 moves toward the first position, the elastic member 420 undergoes compressive deformation. When the water supply in the water inlet section 130 stops, the piston body 410 moves to the second position under the elastic reset action of the elastic member 420, and discharges the water in the second chamber 120 toward the water inlet section 130.

[0040] In one embodiment, as Figure 2 、 Figure 3 and Figure 4 shown, the switching mechanism 500 includes a lever group 510, a push rod 520, and a ratchet wheel 530. The lever group 510 is connected between the piston member 400 and the push rod 520. When the piston member 400 moves to the first position, the push rod 520 is away from the ratchet wheel 530. When the piston member 400 moves to the second position, the push rod 520 abuts against the ratchet wheel 530, and the ratchet wheel 530 is pushed to rotate a certain angle in the first direction through the push rod 520. The water outlet mechanism 200 includes a water distribution plate 210, and the ratchet wheel 530 is connected to the water distribution plate 210. When the ratchet wheel 530 rotates a certain angle, the water distribution plate 210 synchronously rotates a certain angle. Through the position change of the water distribution plate 210, the first chamber 110 is switched to communicate with a water outlet flow channel different from the water outlet mechanism 200, thereby changing the water outlet mode. The lever group 510 can reduce the thrust required when the piston member 400 pushes the push rod 520 through the lever principle.

[0041] Further, the switching mechanism 500 further includes a stop member 540. The stop member 540 can be a spring piece or a rod. The stop member 540 can abut against the ratchet wheel 530. The rotation of the ratchet wheel 530 in the second direction is restricted by the stop member 540, and the first direction is opposite to the second direction. In the illustrated direction, when the push rod 520 moves upward, it abuts against the ratchet wheel 530 and pushes the ratchet wheel 530 to rotate counterclockwise. The stop member 540 abuts against the ratchet wheel 530 to prevent the ratchet wheel 530 from rotating clockwise.

[0042] Specifically, as Figure 2 、 Figure 3 and Figure 4As shown in the figure, the lever group 510 includes a first connecting rod 511 and a second connecting rod 512. The two ends of the first connecting rod 511 can be hinged to one end of the piston member 400 and one end of the second connecting rod 512 through a rotating shaft respectively. The other end of the second connecting rod 512 can be hinged to one end of the push rod 520 through a rotating shaft. A fulcrum 513 hinged to the water inlet main body 100 is provided on the second connecting rod 512. Compared with the hinged joints of the fulcrum 513 with the first connecting rod 511 and the second connecting rod 512, the fulcrum 513 is closer to the hinged joint of the second connecting rod 512 and the push rod 520, so as to achieve the purpose of saving effort to push the push rod 520 through the second connecting rod 512.

[0043] In one embodiment, as Figure 2 , Figure 3 and Figure 4 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 group 510 through a rotating shaft. One end of the second rod segment 522 faces the ratchet wheel 530, and a V-shaped notch can be provided at the end of the second rod segment 522 to match the teeth on the ratchet wheel 530. A second guide groove 140 is provided on the water inlet main body 100, and the extending direction of the second guide groove 140 is the same as the moving direction of the push rod 520. The second rod segment 522 is slidably disposed in the second guide groove 140. A marble 523 is provided on the second rod segment 522, and the marble 523 elastically expands and contracts relative to the second rod segment 522 perpendicular to the translation direction of the second rod segment 522, and one end of the marble 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 and connecting rod mechanism. Under the action of the marble 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 during movement, ensuring the stability when the second rod segment 522 pushes the ratchet wheel 530.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0048] In the description of this specification, the description with reference to terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water outlet device, characterized in that, Comprising: An inlet main body (100), the inlet main body (100) includes a first chamber (110) and a second chamber (120), and an inlet section (130) for water inlet is provided between the first chamber (110) and the second chamber (120); An outlet mechanism (200), the outlet mechanism (200) is communicated with the first chamber (110); A central member (300), the central member (300) passes through the inlet section (130), the central member (300) has a first end (310) and a second end (320), the pressure-bearing area of the first end (310) is smaller than the pressure-bearing area of the second end (320), and the central member (300) is configured to move in the inlet section (130) according to the change of the pressure difference between the first end (310) and the second end (320), so as to open or close the connection between the inlet section (130) and the first chamber (110) through the first end (310); A piston member (400), the piston member (400) is installed in the second chamber (120), and the piston member (400) is configured to move to a first position as the water pressure in the second chamber (120) increases and reset to a second position as the water pressure in the second chamber (120) decreases; A switching mechanism (500), the switching mechanism (500) is connected between the outlet mechanism (200) and the piston member (400), and the switching mechanism (500) switches the outlet mode of the outlet mechanism (200) as the piston member (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 a first pressure-bearing surface (311), the surface of the second end (320) facing the first end (310) is a second pressure-bearing surface (321), the surface of the second end (320) away from the first end (310) is a third pressure-bearing surface (322), the area of the first pressure-bearing surface (311) is smaller than the area of the second pressure-bearing surface (321), and the area of the first pressure-bearing surface (311) is smaller than the area of the third pressure-bearing surface (322).

3. The water outlet device according to claim 2, characterized in that: The first end (310) extends into the first chamber (110), and the first pressure-bearing surface (311) is in the shape of a conical surface with an outer diameter gradually increasing 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 member (600) is installed at the connection between the first chamber (110) and the water inlet section (130). The interior of the water passing member (600) is hollow to form a water passing chamber (610). The two ends of the water passing chamber (610) are open to form a first water passing port (620) and a second water passing port (630) respectively. The water passing chamber (610) communicates with the first chamber (110) through the first water passing port (620), and the water passing chamber (610) communicates with 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 the opening area of the second water passing port (630). The central member (300) is slidably disposed through the water passing chamber (610). When the central member (300) moves, it controls the opening and closing of the first water passing port (620) through the first end portion (310).

5. The water outlet device according to claim 4, characterized in that: A first guiding groove (640) is provided inside the water passing chamber (610). The extending direction of the first guiding groove (640) is the same as the moving direction of the central member (300). A circumferential edge (340) is provided on the central member (300), and the circumferential edge (340) is slidably connected to the first guiding groove (640).

6. The water outlet device according to claim 1, wherein: The piston member (400) includes a plug body (410) and an elastic member (420). The plug body (410) is slidably installed in the second chamber (120). The elastic member (420) applies an elastic acting force to the plug body (410) to make it move towards the second position.

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

8. The water outlet device according to claim 7, wherein: The switching mechanism (500) further includes a stop member (540). The stop member (540) can abut against the ratchet wheel (530) to limit the rotation of the ratchet wheel (530) in the second direction. The first direction is opposite to the second direction.

9. The water outlet device according to claim 7, wherein: The lever group (510) includes a first connecting rod (511) and a second connecting rod (512). Two ends of the first connecting rod (511) are respectively hinged to one end of the piston member (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). A fulcrum (513) hinged to the water inlet main body (100) is provided on the second connecting rod (512), and the fulcrum (513) is closer to the end of the second connecting rod (512) hinged to the push rod (520).

10. The water outlet device according to claim 7, wherein: The push rod (520) includes a first rod segment (521) and a second rod segment (522) which are hinged to each other. One end of the first rod segment (521) is hinged to the lever group (510). One end of the second rod segment (522) faces the ratchet wheel (530). A second guide groove (140) is provided on the water inlet main body (100). The second rod segment (522) is slidably disposed in the second guide groove (140). A marble (523) is provided on the second rod segment (522). The marble (523) elastically expands and contracts relative to the second rod segment (522) in a direction perpendicular to the translation direction of the second rod segment (522), and one end of the marble (523) abuts against the groove wall of the second guide groove (140).

Images