Push-flow switching device and water outlet device

Abstract

The application discloses a pressurized flow switching device and belongs to the technical field of waterway switching structures. When the second driving end part of the rotor valve rod is matched with the guide sleeve at the first locking position, the water area formed by the second driving end part and the water outlet is small, and at this time, water flow with small flow rate flows out from the flow guide hole of the side part of the guide sleeve through the water passing space; the second driving end part of the rotor valve rod is driven to move by the first driving end part of the stator valve rod through pressurization, so that the first locking position is released, the second end part of the rotor valve rod is driven to move, and under the action of water pressure, the second end part is switched to the second locking position matched with the guide sleeve, and under the action of water pressure, the second end part is kept at the second locking position, and at this time, water flow with large flow rate flows out from the flow guide hole of the side part of the guide sleeve through the water passing space. In this way, the device capable of pressurized circulation switching of flow rate is provided through the above setting mode, and the operation convenience of users is effectively improved.

Description

Technical Field

[0001] This application relates to the field of water circuit switching structure technology, and in particular to a press-to-flow switching device and a water outlet device. Background Technology

[0002] Most commercially available flow-boosting functions require manual operation or cannot be switched back to low flow mode once the flow is increased, requiring the water to be turned off to restore low flow. To provide a more convenient and feature-rich way to operate a single button, there is an urgent need for a function that allows for cyclical switching between high and low flow rates by pressing a button, while restoring low flow after the water is turned off and on again. Utility Model Content

[0003] This application provides a press-button flow rate switching device and a water outlet device. It solves the technical problem of the prior art urgently needing a press-button cyclic switching device for large / small flow rates in water circuits. The technical solution is as follows: On the one hand, a press flow switching device is provided, the press flow switching device comprising: a guide sleeve, a stator valve stem, and a rotor valve stem; The bottom of the guide sleeve has a connected inlet and outlet. The stator valve stem has a first driving end that extends from the top of the guide sleeve into the guide sleeve, and the rotor valve stem has a second driving end that extends from the top of the guide sleeve into the guide sleeve. The second driving end is closer to the outlet than the first driving end. The second driving end and the guide sleeve are provided with a plurality of first locking positions and a plurality of second locking positions that can be switched with each other. At the first locking position, the water passage area formed by the second driving end and the outlet is smaller than the water passage area formed by the second driving end and the outlet at the second locking position. When the water is on, pressing the stator valve rod drives the second drive end of the rotor valve rod to move through the first drive end, thereby releasing one of the first and second locking positions; driving the second end of the rotor valve rod to move and, under the action of water pressure, switching and maintaining the other of the first and second locking positions; when the water is off, the bottom of the rotor valve rod is connected to the part of the guide sleeve with the water inlet through a transmission component, so that the second drive end of the rotor valve rod moves to the standby position corresponding to the first or second locking position.

[0004] Optionally, after releasing either the first locking position or the second locking position, the second drive end can be connected to the first drive end for transmission and, in conjunction with water pressure, switch and maintain the other of the first and second locking positions.

[0005] Optionally, the transmission component includes: a plurality of guide protrusions disposed at the bottom of the rotor valve stem and distributed along its circumference, and a plurality of guide inclined surfaces disposed at the water inlet of the guide sleeve and cooperating with the guide protrusions, wherein there is a gap between two adjacent sets of guide inclined surfaces; In the water-off state, the rotor valve rod drives the guide protrusion to move downward and contact the guide inclined surface. Under the guidance of the guide inclined surface, it slides to the empty position, so that the second driving end of the rotor valve rod moves to the standby position corresponding to the first locking position or the second locking position.

[0006] Optionally, the positions of the plurality of guide protrusions are respectively set to correspond to the portions of the second drive end that cooperate with the guide sleeve to form a plurality of first locking positions.

[0007] Optionally, each set of guide ramps includes two symmetrically arranged guide sub-ramps, each guide sub-ramps tilting upwards in a direction away from the water inlet, and one side of the two guide sub-ramps intersecting and overlapping.

[0008] Optionally, the guide sleeve includes: a guide sleeve body and a reset kit, the reset kit being fitted into the lower part of the guide sleeve body, the reset kit having the water inlet and the water outlet disposed opposite to each other, the side of the guide sleeve body having a guide hole communicating with the water outlet; and the bottom of the reset kit having the plurality of guide protrusions.

[0009] Optionally, the first driving end is provided with a plurality of first ratchet teeth arranged circumferentially thereon, and the second driving end is provided with a plurality of second ratchet teeth arranged circumferentially thereon, each second ratchet tooth including two sub-ratches distributed circumferentially. Among them, the sub-ratchet of the multiple second ratchet teeth cooperates with the multiple first ratchet teeth one by one, and under the action of water pressure, the second drive end can move along the axial direction of the guide sleeve and rotate synchronously.

[0010] Optionally, each second ratchet is provided with a limiting blind groove distributed between two sub-ratches, and a limiting through groove is provided between two adjacent second ratchets; the inner sidewall of the guide sleeve has a plurality of limiting guide posts that cooperate with each limiting blind groove or limiting through groove. Specifically, at the first locking position, a portion of the limiting guide post is engaged in the limiting blind groove; at the second locking position, a portion of the limiting guide post is engaged in the limiting through groove.

[0011] Optionally, the press-to-flow switching device includes: a button and a first elastic element, the button being mounted on the top of the stator valve stem, and the first elastic element being sleeved on the stator valve stem with its two ends contacting the top of the button and the top of the guide sleeve, respectively.

[0012] Optionally, the stator valve stem has a hollow groove extending along its axial direction, and a portion of the rotor valve stem is slidably connected to the stator valve stem within the hollow groove; the press flow switching device further includes a second elastic element located within the hollow groove, the two ends of the second elastic element contacting the bottom wall of the hollow groove and the top of the rotor valve stem, respectively.

[0013] On the other hand, a water outlet device is provided, the water outlet device comprising: a device body and any of the above-described pressure flow switching devices.

[0014] The beneficial effects of the technical solutions provided in this application include at least the following: When the second driving end of the rotor valve rod is in the first locked position with the guide sleeve, the water passage area formed by the second driving end and the outlet is small. At this time, a smaller flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. By pressing the stator valve rod, the second driving end of the rotor valve rod is driven to move through the first driving end, thereby releasing the first locked position. At the same time, the second end of the rotor valve rod is driven to move and, under the action of water pressure, switches to the second locked position with the guide sleeve, and remains in the second locked position under the action of water pressure. At this time, a larger flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. In this way, the above-described configuration provides a device that can switch between large and small flow rates by pressing and cycling, effectively improving the user's ease of operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of a press flow switching device provided in an embodiment of this application; Figure 2 yes Figure 1 The diagram shown illustrates the structure of the press flow switching device. Figure 3 This is a cross-sectional view of another press flow switching device provided in the embodiments of this application; Figure 4 yes Figure 3 The diagram shown illustrates the structure of the press flow switching device. Figure 5 This is a partially exploded schematic diagram of a press-to-flow switching device provided in an embodiment of this application; Figure 6This is a schematic diagram illustrating the fit between a stator valve stem and a rotor valve stem according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a rotor valve stem provided in an embodiment of this application; Figure 8 yes Figure 7 A schematic diagram of the rotor valve stem from another perspective is shown; Figure 9 This is a schematic diagram of the structure of a guide sleeve provided in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of a reset kit provided in an embodiment of this application.

[0017] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0020] Please refer to Figures 1 to 10 , Figure 1 This is a cross-sectional view of a press-to-flow switching device provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shown illustrates the structure of the press flow switching device. Figure 3 This is a cross-sectional view of another press-to-flow switching device provided in this application embodiment. Figure 4 yes Figure 3 The diagram shown illustrates the structure of the press flow switching device. Figure 5 This is a partially exploded schematic diagram of a press-to-flow switching device provided in an embodiment of this application. Figure 6 This is a schematic diagram illustrating the fit between a stator valve stem and a rotor valve stem according to an embodiment of this application. Figure 7 This is a schematic diagram of the structure of a rotor valve stem provided in an embodiment of this application. Figure 8 yes Figure 7 The diagram shows a structural schematic of the rotor valve stem from another perspective. Figure 9 This is a schematic diagram of a guide sleeve provided in an embodiment of this application. Figure 10 This is a schematic diagram of a reset kit provided in an embodiment of this application. The press flow switching device may include: a guide sleeve 100, a stator valve stem 200, and a rotor valve stem 300.

[0021] The bottom of the guide sleeve 100 in the pressure flow switching device may have a connected inlet k1 and outlet k2. Here, the side of the guide sleeve 100 is provided with a guide hole k3 that communicates with the outlet k2.

[0022] The stator valve stem 200 in the pressure flow switching device may have a first drive end 201 extending into the guide sleeve 100 from the top, and the rotor valve stem 300 may have a second drive end 301 extending into the guide sleeve 100 from the top, with the second drive end 301 being closer to the outlet k2 than the first drive end 201. The second drive end 301 in the rotor valve stem 300 may be configured with multiple first locking positions W1 and multiple second locking positions W2 that can be switched with each other in cooperation with the guide sleeve 100. At the first locking position W1, the water passage area formed between the second drive end 301 of the rotor valve stem 300 and the outlet k2 is smaller than the water passage area formed between the second drive end 301 of the rotor valve stem 300 and the outlet k2 at the second locking position W2.

[0023] In the hot water state, pressing the stator valve stem 200 drives the second drive end 301 of the rotor valve stem 300 through the first drive end 201 of the stator valve stem 200, thereby releasing one of the first locking position W1 and the second locking position W2; driving the rotor valve stem 300 to move and, under the action of water pressure, switching and maintaining the other of the first locking position W1 and the second locking position W2. In the hot water state, the bottom of the second drive end 301 of the rotor valve stem 300 is connected to the part of the guide sleeve 100 with the water inlet k1 through a transmission component, so that the second drive end 301 of the rotor valve stem 300 moves to the standby position corresponding to the first locking position or the second locking position. Here, in the hot water state, water flow is introduced into the guide sleeve 100 from the water inlet k1, and the second drive end 301 of the rotor valve stem 300 is subjected to water pressure. In addition, multiple first locking positions W1 can be distributed along the axial direction of the second drive end surrounding the rotor valve stem and the axial direction of the guide sleeve, and multiple second locking positions W2 can be distributed along the axial direction of the second drive end surrounding the rotor valve stem and the axial direction of the guide sleeve.

[0024] For example, when the second driving end 301 of the rotor valve stem 300 is in the first locking position W1, which is engaged with the guide sleeve 100, the water passage area formed by the second driving end 301 and the outlet k2 is small. At this time, a smaller flow rate of water flows out through the guide hole k3 on the side of the guide sleeve 100 through the water passage space. By pressing the stator valve stem 200, the second driving end 301 of the rotor valve stem 300 is driven to move through the first driving end 201, thereby releasing the first locking position W1. At the same time, the second driving end 301 of the rotor valve stem 300 is driven to move and, under the action of the water pressure, switches to the second locking position W2, which is engaged with the guide sleeve 100, and remains in the second locking position W2 under the action of water pressure. At this time, a larger flow rate of water flows out through the guide hole k3 on the side of the guide sleeve 100 through the water passage space. In this way, the above-described configuration provides a device that can switch between large and small flow rates by pressing and cycling, effectively improving the user's ease of operation. Furthermore, in the water-off state, the second driving end 301 of the rotor valve stem 300 moves towards the inlet k1 in the guide sleeve 100 under gravity. Through the coordinated movement of the transmission components, the second driving end 301 of the rotor valve stem 300 moves to a standby position corresponding to the first or second locking position, improving the flexibility of the flow switching device and the user experience. This standby position corresponding to the first or second locking position means that the next time the water is turned on, under water pressure, the second driving end 301 of the rotor valve stem 300 will move and engage with the guide sleeve 100 to be in the first or second locking position. It should be noted that when the second driving end 301 of the rotor valve stem 300 is engaged with the guide sleeve 100 in the second locking position W2, the same method can be used to switch to the first locking position W1, which will not be elaborated here.

[0025] In summary, this application provides a press-to-switch flow rate device, which may include a guide sleeve, a stator valve rod, and a rotor valve rod. When the second driving end of the rotor valve rod is in the first locked position with the guide sleeve, the water passage area formed by the second driving end and the outlet is small. At this time, the smaller flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. By pressing the stator valve rod, the second driving end of the rotor valve rod is driven to move through the first driving end to release the first locked position. At the same time, the second end of the rotor valve rod is driven to move and, under the action of water pressure, switches to the second locked position with the guide sleeve and remains in the second locked position under the action of water pressure. At this time, the larger flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. In this way, the above-described configuration provides a device that can switch between large and small flow rates by pressing, effectively improving the user's ease of operation.

[0026] Optional, such as Figures 1 to 6As shown, after the second driving end 301 of the rotor valve stem 300 moves relative to the guide sleeve 100 to release one of the first locking position W1 and the second locking position W2, the second driving end 301 of the rotor valve stem 300 can be drivenly connected to the first driving end 201 of the stator valve stem 200, and cooperate with the water pressure to switch and maintain the other of the first locking position W1 and the second locking position W2. In this case, after the first driving end 201 of the stator valve stem 200 drives the second driving end 301 of the rotor valve stem 300 to release one of the first locking position W1 and the second locking position W2 from the guide sleeve 100, the second driving end 301 of the rotor valve stem 300 can rotate under the driving action of the water pressure and the second driving end of the stator valve stem 200 to switch and maintain the other of the first locking position W1 and the second locking position W2. In other words, there is no need to use other drive mechanisms to drive the rotor valve stem. The switching of the locking position is completed through the transmission connection between the second drive end 301 and the first drive end 201 and the action of water pressure.

[0027] In this application, as Figure 1 , Figure 3 , Figure 7 and Figure 10 As shown, the transmission component may include: multiple guide protrusions 302 distributed circumferentially at the bottom of the rotor valve stem 300; multiple sets of guide inclined surfaces M that cooperate with the guide protrusions 302 at the water inlet k1 of the guide sleeve 100; and a gap K between adjacent sets of guide inclined surfaces. In the water-off state, the guide protrusions 302 move downwards and contact the guide inclined surfaces M, then slide to the gap K under the guidance of the guide inclined surfaces M, so that the second driving end 301 of the rotor valve stem 300 moves to the standby position corresponding to the first or second locking position. Thus, in the water-off state, the cooperation between the guide protrusions 302 in the rotor valve stem 300 and the guide inclined surfaces M in the guide sleeve 100 allows the rotor valve stem 300 to be in any standby position after the water is turned off, and it can automatically switch to a low-flow-rate or high-flow-rate state after the water is turned on again.

[0028] Here, the positions of the multiple guide protrusions 302 correspond to the portions of the second drive end 301 of the rotor valve stem 300 that cooperate with the guide sleeve to form multiple first locking positions W1. In this way, after the water is turned off, the water dispenser can automatically switch to the low-flow-rate outlet device the next time it is turned on.

[0029] For example, each set of guide ramps M includes two symmetrically arranged guide sub-ramps m. Each guide sub-ramps m slopes upward in a direction away from the inlet k1, and one side of each guide sub-ramps m intersects and overlaps. In this way, after the rotor valve stem 300 moves downward, the guide protrusion 302 can contact either guide sub-ramps m and then move accordingly, improving the guiding flexibility of the rotor valve stem 300. Furthermore, the guide sub-ramps m can spirally slope upward, reducing the moving resistance of the guide protrusion 302 after contacting it.

[0030] Optionally, the guide sleeve 100 in the press flow switching device includes: a guide sleeve body A1 and a reset kit A2. The reset kit A2 is fitted into the lower part of the guide sleeve body A1. The reset kit A2 has an inlet K1 and an outlet K2 disposed opposite to each other. The side of the guide sleeve body A1 has a guide hole K3 communicating with the outlet K2. The bottom of the reset kit A2 has a plurality of guide protrusions 302. For example, the guide sleeve body A1 can be a sleeve structure with openings at both ends, and the reset kit A2 can also be a sleeve structure with openings at both ends, and the length of the reset kit A2 is less than the length of the guide sleeve body A1.

[0031] In this application, as Figures 1 to 6 As shown, the first driving end 201 of the stator valve stem 200 is provided with a plurality of first ratchet teeth 201a arranged circumferentially thereon, and the second driving end 301 of the rotor valve stem 300 is provided with a plurality of second ratchet teeth 301a arranged circumferentially thereon. Each second ratchet tooth 301a includes two sub-rat teeth J distributed circumferentially. The sub-rat teeth J of the plurality of second ratchet teeth 301a engage one-to-one with the plurality of first ratchet teeth 201a, enabling the second driving end 301 of the rotor valve stem 300 to move axially along the guide sleeve 100 and rotate synchronously under water pressure. Here, the engagement of the first ratchet teeth 201a and the second ratchet teeth 301a is similar to the structure of a ballpoint pen. Through the engagement of the guide slope on the first ratchet tooth 201a and the guide slope of the sub-rat teeth J in the second ratchet tooth 301a, the movement trajectory of the second driving end 301 in the rotor valve stem 300 is changed.

[0032] Optional, such as Figures 1 to 8As shown, each second ratchet 301a is provided with a limiting blind groove C1 distributed between two sub-ratchets J, and a limiting through groove C2 is provided between two adjacent second ratchets 301a. The inner sidewall of the guide sleeve 100 may have a plurality of limiting guide posts 101 that mate with each limiting blind groove C1 or limiting through groove C2. Specifically, at the first locking position W1, a portion of the limiting guide post 101 is engaged in the limiting blind groove C1; at the second locking position W2, a portion of the limiting guide post 101 is engaged in the limiting through groove C2. For example, when the second driving end 301 of the rotor valve rod 300 is engaged with the guide sleeve 100 at the first locking position W1, that is, when the limiting guide post 101 in the guide sleeve 100 is engaged with the limiting blind groove C1 to restrict the rotation of the rotor valve rod 300, the first driving end 201 drives the second driving end 301 to move axially along the guide sleeve 100 by pressing the stator valve rod 200. After a certain stroke, the limiting blind groove C1 separates from the limiting guide post 101. At this time, the second driving end 301 of the rotor valve rod 300 is engaged with the first driving end 201 of the stator valve rod 200, and under the action of water pressure, the second driving end 301 of the rotor valve rod 300 rotates and moves axially at the same time, so that the limiting through groove C2 at the second driving end 301 is aligned with the limiting guide post 101 in the guide sleeve 100 and engaged at the second locking position W2. At this time, the switching device can output water flow in a small flow state. It should be noted that when the pressure on the stator valve stem 200 is released, it will not affect the movement of the second drive end 301 of the rotor valve stem 300 and the limiting engagement with the limiting guide post 101.

[0033] Press the stator valve rod 200 again, and the first driving end 201 of the stator valve rod 200 drives the second driving end 301 of the rotor valve rod 300 to move axially along the guide sleeve 100. After a certain stroke, the limiting through groove C2 separates from the limiting guide post 101. At this time, the second driving end 301 of the rotor valve rod 300 cooperates with the first driving end 201 of the stator valve rod 200. Under the action of water pressure, the second driving end 301 of the rotor valve rod 300 rotates and moves axially at the same time, so that the limiting blind groove C1 at the second driving end 301 is aligned with the limiting guide post 101 in the guide sleeve 100 and is in the first locking position W1. At this time, the switching device can output water flow in a large flow state.

[0034] It should be noted that the limiting blind groove C1 in the second drive end 301 of the rotor valve stem 300 at the standby position corresponding to the first locking position is aligned with the limiting guide post 101 in the guide sleeve 100, so that the switching device can be in a low flow state after the next water is turned on. The positions of the multiple guide protrusions 302 are respectively set to correspond to the multiple limiting blind grooves C1 set in the second drive end.

[0035] In the embodiments of this application, such as Figures 1 to 4As shown, the press-to-flow switching device may include a button 400 and a first elastic element 500. The button 400 may be mounted on the top of the stator valve stem 200, and the first elastic element 500 is sleeved on the stator valve stem 200, with both ends respectively contacting the tops of the button 400 and the guide sleeve 100. Thus, after pressing the button 400 to drive the stator valve stem 200 to move, the first elastic element 500 can be compressed; and after the pressing force on the button 400 is released, the first elastic element 500 can drive the button 400 to move to the initial position under the action of elastic force. Here, the initial position is the position where the button 400 is not pressed. For example, the first elastic element 500 may be a helical spring sleeved on the stator valve stem 200.

[0036] Optional, such as Figures 1 to 4 As shown, the stator valve stem 200 may have a hollow groove 202 extending along its axial direction, and a portion of the rotor valve stem 300 is located within the hollow groove 202 and slidably connected to the stator valve stem 200. The press-to-flow switching device may further include a second elastic element 600 located within the hollow groove 202, with both ends of the second elastic element 600 contacting the bottom wall of the hollow groove 202 and the top of the rotor valve stem 300, respectively. Thus, in the water-off state, the rotor valve stem 300 can move downward under the elastic force of the second elastic element 600 to block the outlet k2 of the guide sleeve 100. It should be noted that in the water-on state, the water pressure on the second drive end 301 of the rotor valve stem 300 is greater than the elastic force of the second elastic element 600. For example, the second elastic element 600 may be a helical spring disposed within the hollow groove 202.

[0037] In summary, this application provides a press-to-switch flow rate device, which may include a guide sleeve, a stator valve rod, and a rotor valve rod. When the second driving end of the rotor valve rod is in the first locked position with the guide sleeve, the water passage area formed by the second driving end and the outlet is small. At this time, the smaller flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. By pressing the stator valve rod, the second driving end of the rotor valve rod is driven to move through the first driving end to release the first locked position. At the same time, the second end of the rotor valve rod is driven to move and, under the action of water pressure, switches to the second locked position with the guide sleeve and remains in the second locked position under the action of water pressure. At this time, the larger flow rate of water flows out through the guide hole on the side of the guide sleeve through the water passage space. In this way, the above-described configuration provides a device that can switch between large and small flow rates by pressing, effectively improving the user's ease of operation.

[0038] This application embodiment also provides a water outlet device, which may include: a device body (not shown in the figure) and any of the above-described pressure flow switching devices.

[0039] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0040] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pressure-activated flow rate switching device, characterized in that, include: Guide sleeve, stator valve stem, and rotor valve stem; The bottom of the guide sleeve has a connected inlet and outlet. The stator valve stem has a first driving end that extends from the top of the guide sleeve into the guide sleeve, and the rotor valve stem has a second driving end that extends from the top of the guide sleeve into the guide sleeve. The second driving end is closer to the outlet than the first driving end. The second driving end and the guide sleeve are provided with a plurality of first locking positions and a plurality of second locking positions that can be switched with each other. At the first locking position, the water passage area formed by the second driving end and the outlet is smaller than the water passage area formed by the second driving end and the outlet at the second locking position. When the water is on, pressing the stator valve rod drives the second drive end of the rotor valve rod to move through the first drive end, thereby releasing one of the first and second locking positions; driving the second end of the rotor valve rod to move and, under the action of water pressure, switching and maintaining the other of the first and second locking positions; when the water is off, the bottom of the second drive end of the rotor valve rod is connected to the part of the guide sleeve with the water inlet through a transmission component, so that the second drive end of the rotor valve rod moves to the standby position corresponding to the first or second locking position.

2. The press flow switching device according to claim 1, characterized in that, After releasing either the first locking position or the second locking position, the second drive end can be connected to the first drive end for transmission and, in conjunction with water pressure, switch and maintain the other of the first and second locking positions.

3. The press flow switching device according to claim 2, characterized in that, The transmission component includes: a plurality of guide protrusions disposed at the bottom of the rotor valve stem and distributed along its circumference, and a plurality of guide inclined surfaces disposed at the water inlet of the guide sleeve and cooperating with the guide protrusions, wherein there is a gap between two adjacent sets of guide inclined surfaces; In the water-off state, the rotor valve rod drives the guide protrusion to move downward and contact the guide inclined surface. Under the guidance of the guide inclined surface, it slides to the empty position, so that the second driving end of the rotor valve rod moves to the standby position corresponding to the first locking position or the second locking position.

4. The press flow switching device according to claim 3, characterized in that, The positions of the plurality of guide protrusions are respectively set to correspond to the portions of the second drive end that cooperate with the guide sleeve to form a plurality of first locking positions.

5. The press flow switching device according to claim 4, characterized in that, Each set of guide ramps includes two symmetrically arranged guide sub-ramps, each guide sub-ramps tilting upwards in a direction away from the water inlet, and one side of the two guide sub-ramps intersecting and overlapping.

6. The press flow switching device according to claim 3, characterized in that, The guide sleeve includes: a guide sleeve body and a reset kit. The reset kit is fitted into the lower part of the guide sleeve body. The reset kit has an inlet and an outlet that are arranged opposite to each other. The side of the guide sleeve body has a guide hole that communicates with the outlet. The bottom of the reset kit has the plurality of guide protrusions.

7. The press flow switching device according to any one of claims 2-6, characterized in that, The first driving end is provided with a plurality of first ratchet teeth arranged circumferentially thereon, and the second driving end is provided with a plurality of second ratchet teeth arranged circumferentially thereon, each second ratchet tooth including two sub-ratches distributed circumferentially. Among them, the sub-ratchet of the multiple second ratchet teeth cooperates with the multiple first ratchet teeth one by one, and under the action of water pressure, the second drive end can move along the axial direction of the guide sleeve and rotate synchronously.

8. The press flow switching device according to claim 7, characterized in that, Each second ratchet is provided with a limiting blind groove distributed between two sub-ratchets, and a limiting through groove is provided between two adjacent second ratchets; the inner sidewall of the guide sleeve has a plurality of limiting guide posts that mate with each limiting blind groove or limiting through groove. Specifically, at the first locking position, a portion of the limiting guide post is engaged in the limiting blind groove; at the second locking position, a portion of the limiting guide post is engaged in the limiting through groove.

9. The press flow switching device according to any one of claims 1-6, 8, characterized in that, The press-to-flow switching device includes a button and a first elastic element. The button is mounted on the top of the stator valve stem, and the first elastic element is sleeved on the stator valve stem with its two ends in contact with the top of the button and the top of the guide sleeve, respectively.

10. The press flow switching device according to claim 9, characterized in that, The stator valve stem has a hollow slide groove extending along its axial direction, and a portion of the rotor valve stem is slidably connected to the stator valve stem within the hollow slide groove; the press flow switching device further includes a second elastic element located within the hollow slide groove, the two ends of the second elastic element being in contact with the bottom wall of the hollow slide groove and the top of the rotor valve stem, respectively.

11. A water outlet device, characterized in that, include: The device body and the press flow switching device as described in any one of claims 1-10 above.

Images