Pressing waterway switching mechanism and outward pulling type pulling head

Abstract

The utility model discloses a pressing waterway switching mechanism, and belongs to the technical field of faucets. The first end of the switching valve is connected with the transmission part, the swing part is in transmission fit with the keys and the transmission part, and the keys are distributed on the side, away from the transmission part, of the swing part and matched with the swing part. Thus, the key and the switching valve are axially arranged in the first direction through transmission connection of the swing part and the transmission part, when the key is driven to move in the first direction, movement of the switching valve in the first direction is converted through transmission of the swing part and the transmission part, and therefore the functions of closing one of the two water channels and conducting the other water channel are achieved. By means of the arrangement mode, the pressing waterway switching mechanism is compact in structure and small in appearance size, and miniaturization design of the outer pulling type pulling head integrated with the pressing waterway switching mechanism is facilitated.

Description

Technical Field

[0001] This application relates to the field of faucet technology, and in particular to a press-type water circuit switching mechanism and an external pull-out head. Background Technology

[0002] To meet different usage scenarios, pull-out drawers typically feature multiple different water spray patterns, thus requiring a water path switching mechanism within the drawer. Currently, there are various water path switching mechanisms on the market, but most of them have a relatively large overall size, which is not conducive to the miniaturization design of pull-out drawers. Utility Model Content

[0003] This application provides a press-type water path switching mechanism and an external pull-out head. This solves the problem that the overall size of existing water path switching mechanisms is large, which is not conducive to the miniaturization design of the pull-out head. The technical solution is as follows:

[0004] On the one hand, a press-to-switch water circuit switching mechanism is provided, which includes: a base housing, a switching valve, a transmission component, a swing component, an elastic arm, and a button;

[0005] The base shell extends along a first direction and is provided with a water inlet, a first water outlet, and a second water outlet along the first direction; the water flow path from the water inlet outlet to the first water outlet is a first water channel, and the water flow path from the water inlet outlet to the second water outlet is a second water channel. In the initial state, the water inlet is connected to the first water channel.

[0006] The switching valve is slidably installed inside the base housing and its central axis is parallel to the first direction;

[0007] One end of the transmission component is connected to the first end of the switching valve, and the other end is connected to the swing component; the button is located on the side of the swing component away from the transmission component and cooperates with the swing component;

[0008] The elastic arm is mounted on the base shell and has two contact portions;

[0009] The button is configured such that, during the process of moving the swing member to the first or second position in the second direction, the second end of the switching valve is driven to move in the direction close to or away from the button via the transmission component, so that the switching valve closes the first water channel and opens the second water channel or closes the second water channel and opens the first water channel, wherein the second direction is perpendicular to the first direction; at the first or second position, an elastic deformation is generated after a contact portion of the elastic arm abuts against the second end of the swing member.

[0010] Optionally, the transmission component includes: a sliding member and a rotating member arranged along a first direction, the swing member being transmittedly connected to the sliding member, the sliding member having an inner groove on the side opposite to the swing member; the rotating member being rotatably connected to the base shell and having a protruding handle on the side facing the sliding member, a portion of the protruding handle extending into the inner groove and being slidably connected to the side wall of the inner groove.

[0011] The first end of the switching valve is limitedly connected to the rotating component, and the switching valve is not coaxial with the protruding handle.

[0012] Optionally, the rotating component includes: a support, a rotating shaft, and the protruding handle. The rotating shaft is fixedly connected to the side of the support and rotatably connected to the base shell. The protruding handle is fixed to the top of one end of the support, and the other end of the support has a limiting groove facing the switching valve. The first end of the switching valve is located in the limiting groove.

[0013] Optionally, the press-to-switch mechanism includes: a first rotating shaft, which is connected to both the swing member and the sliding member, and is slidably connected to the base shell.

[0014] Optionally, the swing member has a limiting mounting groove on the side facing the slider, and a portion of the slider is located within the limiting mounting groove;

[0015] The swing member can rotate relative to the slider until it contacts the edge of the limiting mounting groove.

[0016] Optionally, the switching valve includes a central valve stem, the second end of which has an annular snap-fit ​​groove; the press-to-switch water circuit mechanism further includes a sealing ring installed in the snap-fit ​​groove.

[0017] The second end of the central valve stem, in conjunction with a sealing ring, is used to open or close the first and second water channels.

[0018] Optionally, the press-to-switch water circuit mechanism further includes a reset elastic element, the two ends of which are in contact with the base housing and the second end of the central valve stem, respectively.

[0019] Optionally, the button has two symmetrically arranged and intersecting first driving slopes on the side facing the swing member; the swing member has two second driving slopes that cooperate with the two first driving slopes.

[0020] Optionally, the press-to-switch mechanism further includes a first reset elastic element installed between the button and the base housing, wherein both ends of the first reset elastic element are in contact with the button and the base housing, respectively.

[0021] On the other hand, an external pull-out drawer is provided, the device comprising: a drawer body, and a press-to-water-path switching mechanism installed at the end of the drawer body, wherein the press-to-water-path switching mechanism is any of the press-to-water-path switching mechanisms given above.

[0022] The beneficial effects of the technical solutions provided in this application include at least the following:

[0023] By connecting the first end of the switching valve to the transmission component, the oscillating element is driven by both the button and the transmission component, with the button located on the side of the oscillating element opposite to the transmission component and engaging with it. In this way, the button, through the transmission connection of the oscillating element and the transmission component, is axially arranged with the switching valve along a first direction. When the button is driven to move along the first direction, the transmission between the oscillating element and the transmission component converts this movement into movement of the switching valve along the first direction, thereby achieving the function of closing one waterway and opening the other. This arrangement results in a compact structure and small overall size for the push-button water circuit switching mechanism, facilitating the miniaturization design of the pull-out head integrating this mechanism. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a cross-sectional view of a press-type water circuit switching mechanism provided in an embodiment of this application;

[0026] Figure 2 This is a cross-sectional view from another perspective provided in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram showing the effect when the first waterway of the waterway switching mechanism is activated.

[0028] Figure 4 This is a schematic diagram showing the effect when the second waterway of the waterway switching mechanism is activated.

[0029] Figure 5 This is a schematic diagram illustrating the contact effect between the swinging component and the elastic arm during the process of switching from the first waterway to the second waterway.

[0030] Figure 6 This is a cross-sectional view of another press-type water circuit switching mechanism provided in this application embodiment;

[0031] Figure 7 This is a cross-sectional view of another press-type water circuit switching mechanism provided in the embodiments of this application;

[0032] Figure 8 This is an exploded schematic diagram of a press-type water circuit switching mechanism provided in an embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the structure of a swinging component provided in an embodiment of this application;

[0034] Figure 10 This is a schematic diagram of the structure of a rotating component provided in an embodiment of this application;

[0035] Figure 11 This is a schematic diagram illustrating the effect of switching from the first waterway to the second waterway according to an embodiment of this application;

[0036] Figure 12 This is a schematic diagram illustrating the effect of switching from the second waterway to the first waterway according to an embodiment of this application;

[0037] Figure 13 This is a schematic diagram of a press-type water circuit switching mechanism provided in an embodiment of this application.

[0038] 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

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0040] 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.

[0041] 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.

[0042] Currently, products with cyclical press-to-switch functionality and a water shut-off reset feature are only found in pull-down faucets. This is achieved through a floating press mechanism that drives a pressure-bearing central valve. The floating press mechanism helps users switch between different water types during water flow. The press mechanism is located on the side of the faucet, with the pressing direction perpendicular to the movement direction of the central valve. Faucets with the pressing direction coaxial with the central valve typically lack a water shut-off reset feature.

[0043] Please refer to Figure 1 and Figure 2 , Figure 1 This is a cross-sectional view of a press-type water circuit switching mechanism provided in an embodiment of this application. Figure 2 This is a cross-sectional view from another perspective provided in the embodiments of this application. The press-to-switch water circuit mechanism may include: a base housing 100, a switching valve 200, a transmission component 300, a swing component 400, an elastic arm 500, and a button 600.

[0044] The base shell 100 of the press-to-switch water circuit mechanism can extend along a first direction f1, and is provided with a water inlet K, a first water outlet k1, and a second water outlet k2 along the first direction f1. The water flow path from the outlet k3 of the water inlet K to the first water outlet k1 can be a first water channel S1, and the water flow path from the outlet k3 of the water inlet K to the second water outlet k2 can be a second water channel S2. In the initial state, the water inlet K is connected to the first water channel, that is, the water entering the press-to-switch water circuit mechanism flows out from the first water outlet k1 through the water inlet K and the first water channel.

[0045] The switching valve 200 is slidably installed inside the base housing 100 and the central axis of the switching valve 200 is parallel to the first direction f1.

[0046] One end of the transmission component 300 is connected to the first end of the switching valve 200, and the other end of the transmission component 300 is connected to the swing member 400; the button 600 is located on the side of the swing member 400 away from the transmission component 300 and cooperates with the swing member 400 for driving. Here, the other end of the transmission component 300 is partially rotatably connected to the portion between the first end and the second end of the swing member 400; the first end and the second end of the swing member 400 are arranged along the first direction f1, and the button 600 is located on the side of the swing member away from the transmission component and cooperates with the first end of the swing member.

[0047] The elastic arm 500 can be mounted on the base housing 100 and has two contact portions 501. Here, the two contact portions 501 are distributed on both sides of the swing member 400 along a second direction f2, which can be perpendicular to the first direction.

[0048] The button 600 can be configured such that, during the movement to drive the oscillating member 400 to move along the second direction f2 to the first position, the transmission member 300 drives the second end of the switching valve 200 to move in a direction close to the button 600, so that the switching valve 200 closes the first water channel S1 and opens the second water channel S2. Alternatively, during the movement to drive the oscillating member 400 to rotate relative to the transmission member 300 and move along the second direction f2 to the second position, the transmission member 300 drives the second end of the switching valve 200 to move in a direction away from the button 600, so that the switching valve 200 closes the second water channel and opens the first water channel. In the first or second position, an elastic deformation occurs after one contact portion of the elastic arm 500 abuts against the second end of the oscillating member. For example, in the first position, one side of the oscillating member 400 abuts against one contact portion of the elastic arm 500; in the second position, the other side of the oscillating member 400 abuts against the other contact portion of the elastic arm 500.

[0049] In this embodiment, the first end of the switching valve 200 is connected to the transmission component 300, and the swing member 400 is driven by both the button 600 and the transmission component 300. The button 600 is located on the side of the swing member 400 away from the transmission component 300 and engages with the swing member 400. Thus, the button 600 is axially arranged with the switching valve 200 along the first direction f1 through the transmission connection between the swing member 400 and the transmission component 300. When the button 600 is driven to move along the first direction f1, the transmission between the swing member 400 and the transmission component 300 converts this movement into movement of the switching valve 200 along the first direction f1, thereby achieving the function of closing one waterway and opening the other. This arrangement results in a compact structure and small overall size for the push-button waterway switching mechanism, which is beneficial for the miniaturization design of the pull-out head integrating this mechanism.

[0050] For example, please refer to Figure 3 , Figure 3 This is a schematic diagram showing the effect when the first water channel of the press-to-switch water circuit mechanism is open. Initially, the inlet hole K and the first water channel are connected. After water is introduced into the press-to-switch water circuit mechanism, the water can flow through the first water channel and out from the first outlet k1. Please refer to... Figure 4 , Figure 2 and Figure 5 , Figure 4 This is a schematic diagram showing the effect when the second water channel of the water circuit switching mechanism is activated. Figure 5This is a schematic diagram illustrating the contact effect between the oscillating component and the elastic arm during the switching from the first waterway to the second waterway. Pressing button 600 causes the oscillating component 400 to deflect relative to the transmission component 300 at a certain angle, making contact with the transmission component 300 and moving along a second direction (e.g., to the left) to the first position. During this process, the transmission component 300 drives the switching valve 200 to move along a direction closer to button 600, causing the second end of the switching valve 200 to close the first waterway and open the second waterway. Furthermore, after the oscillating component 400 moves to the first position, it contacts a part 501 of the elastic arm 500, causing deformation at that contact point. This contact point 501 exerts a reaction force on the oscillating component 400, causing it to deflect in the opposite direction, preparing for the next waterway switching.

[0051] If it is necessary to switch to the first water channel outlet, the top of the swing member 400 and the button 600 will deflect in the opposite direction to the other side of the top of the button 600. After the button 600 is pressed and the swing member 400 comes into contact, the swing member will deflect at a certain angle relative to the transmission component 300 and move to the second position in the second direction (e.g., to the right). During this process, the transmission component 300 will drive the switching valve 200 to move away from the button 600, so that the switching valve 200 closes the second water channel and opens the first water channel.

[0052] In summary, this application provides a push-button water circuit switching mechanism, which may include: a base housing, a switching valve, a transmission component, a swing component, an elastic arm, and a button. The first end of the switching valve is connected to the transmission component, and the swing component is driven by both the button and the transmission component. The button is located on the side of the swing component facing away from the transmission component and engages with the swing component. Thus, the button is axially arranged with the switching valve along a first direction via the transmission connection of the swing component and the transmission component. When the button is driven to move along the first direction, the movement of the button is converted into movement of the switching valve along the first direction by the transmission of the swing component and the transmission component, thereby achieving the function of closing one water channel and opening the other. This arrangement makes the push-button water circuit switching mechanism more compact and smaller in size, which is beneficial for the miniaturized design of an external pull-out head integrating this mechanism.

[0053] Optional, please refer to Figure 6 , Figure 7 and Figure 8 , Figure 6 This is a cross-sectional view of another press-type water circuit switching mechanism provided in this application embodiment. Figure 7 This is a cross-sectional view of another press-type water circuit switching mechanism provided in the embodiments of this application. Figure 8This is an exploded view of a press-type water circuit switching mechanism provided in an embodiment of this application. The transmission component 300 in the press-type water circuit switching mechanism may include a sliding member 301 and a rotating member 302 arranged along a first direction f1. A swing member 400 can be transmittedly connected to the sliding member 301. The side of the sliding member 301 facing away from the swing member 400 may have an inner groove 301a. The rotating member 302 is rotatably connected to the base housing 100 and may have a protruding handle 302a on the side facing the sliding member 301. A portion of the protruding handle 302a extends into the inner groove 301a of the sliding member 301 and can be slidably connected to the side wall of the inner groove 301a. The first end of the switching valve 200 is limitedly connected to the rotating member 302, and the switching valve 200 and the protruding handle 302a are not coaxial.

[0054] In this configuration, via the sliding member 301 and rotating member 302 provided in the transmission component 300, pressing the button 600 drives the swing member 400 to deflect relative to the sliding member 301 to a certain angle and contact the sliding member 301. As the swing member 400 moves towards the first position, it can drive the sliding member 301 to move synchronously along the second direction f2. The sliding member 301, through the inner groove 301a and the protruding handle 302a in the rotating member 302, forms a lever mechanism, so that as the rotating member 302 rotates, it can drive the first end of the switching valve 200 to move along the first direction f1.

[0055] For example, please refer to Figure 9 , Figure 9 This is a schematic diagram of a swing member provided in an embodiment of this application. The swing member 400 may have a limiting mounting groove 401 on the side facing the slider 301, and a portion of the slider 301 may be located within the limiting mounting groove 401. The swing member 400 can rotate relative to the slider 301 until the edge of the limiting mounting groove 401 contacts the slider 301. In this case, after the swing member 400 deflects relative to the slider 301 at a certain angle under the drive of the button 600, the edge of the limiting mounting groove 401 of the swing member 400 can contact the top of the slider 301. Under the drive of the button 600, the swing member 400 and the slider 301 can move synchronously along the second direction f2. During the movement of the slider 301, the rotating member 302 can be driven to rotate through the cooperation of the inner groove 301a and the protruding handle 302a.

[0056] In the embodiments of this application, please refer to Figure 10 , Figure 10This is a schematic diagram of a rotating component provided in an embodiment of this application. The rotating component 302 may include: a support 302c, a rotating shaft 302b, and a protruding handle 302a. The rotating shaft 302b can be fixedly connected to the side of the support 302c and rotatably connected to the base shell 100. The protruding handle 302a can be fixed to the top of one end of the support 302c. The other end of the support 302c has a limiting groove C facing the switching valve 200, and the first end of the switching valve 200 is located in the limiting groove C.

[0057] Optional, such as Figures 6 to 8 As shown, the press-to-switch water path switching mechanism may include a first rotating shaft 700, which can be connected to both the swing member 400 and the sliding member 301, and can be slidably connected to the base housing 100. Thus, by connecting the swing member 400 and the sliding member 301 through the first rotating shaft 700, when the swing member 400 rotates relative to the sliding member 301, the swing member 400 and the sliding member 301 can move synchronously along the second direction f2.

[0058] For example, such as Figures 6 to 8 As shown, the first rotating shaft 700 can be fastened to the sliding member 301, and the swing member 400 is sleeved on the first rotating shaft 700 and can be rotatably connected to the first rotating shaft 700. Alternatively, the swing member 400 can be sleeved on the first rotating shaft 700 and can be fastened to the first rotating shaft 700, and the sliding member 301 can be sleeved on the first rotating shaft 700 and can be rotatably connected to the first rotating shaft 700.

[0059] In the embodiments of this application, such as Figure 6-8 As shown, the switching valve 200 may include a central valve stem 201, the second end of which may have an annular snap-fit ​​groove 201a. The press-to-switch water circuit mechanism may further include a sealing ring 800 installed in the snap-fit ​​groove 201a. The second end of the central valve stem 201, in conjunction with the sealing ring 800, can be used to open or close the first and second water channels.

[0060] Optional, such as Figure 6-8As shown, the water circuit switching mechanism can further include a reset elastic element 900, the two ends of which can respectively contact the base housing 100 and the second end of the central valve stem 201. In this case, by setting the reset elastic element 900 between the base housing 100 and the second end of the central valve stem 201, when the water supply is closed and the water pressure disappears while the second water channel is flowing, the second end of the central valve stem 201 is pushed away from the button 600 under the action of the reset elastic element 900, thereby blocking the second water outlet. After the water is turned on again, water flows out of the first water outlet, realizing the function of resetting to the initial state after the water is turned off. During the process of the central valve stem 201 being pushed by the reset elastic element 900, the rotating part 302 connected to the central valve stem 201 rotates, driving the sliding part 301 to move to the right. The swinging part 400 is also driven to move to the right, and because the swinging part 400 contacts the contact part 501 of the elastic arm 500, the swinging part 400 deflects to the position of the initial state under the deformation of the elastic arm.

[0061] It should be noted that when the second waterway S2 is open, if it is necessary to switch to the first waterway S1 for water output, since the swing member 400 has already deflected to the other side of the top of the button 600 after the waterway switching mechanism opens the second waterway and closes the first waterway, pressing the button 600 causes the button 600 to move downward, driving the swing member 400 to move to the right. This drives the sliding member 301 to move to the right and push the rotating member 302. The rotating member 302 drives the second end of the central valve stem 201 to move in the direction away from the button 600, blocking the second waterway and opening the first waterway. It should also be noted that when the second waterway is open, the pressure exerted by the water flow on the second end of the central valve stem 201 can overcome the pressure of the reset elastic member 900, causing the central valve stem to close the first waterway and maintain water output from the second waterway.

[0062] For example, the reset elastic element 900 can be a helical spring sleeved on the central valve stem 201.

[0063] In this application, as Figure 6 and Figure 9 As shown, the side of the button 600 facing the oscillating member 400 may have two symmetrically arranged and intersecting first driving slopes m1, and the oscillating member 400 may have two second driving slopes m2 that cooperate with the two first driving slopes. In this way, the cooperation between the two first driving slopes m1 in the button 600 and the two second driving slopes m2 in the oscillating member 400 enables the oscillating member 400 to be driven when the button 600 is pressed.

[0064] Optional, such as Figures 6-8As shown, the press-to-switch water path mechanism may further include a first reset elastic member 1000 installed between the button 600 and the base housing 100, the two ends of which can respectively contact the button 600 and the base housing 100. Thus, by providing the first reset elastic member 1000 between the button 600 and the base housing 100, the button 600 can return to its original position after being pressed, facilitating the next pressing operation. For example, the first reset elastic member 1000 may be a coil spring.

[0065] For example, please refer to Figure 11 and Figure 12 , Figure 11 This is a schematic diagram illustrating the effect of switching from the first waterway to the second waterway according to an embodiment of this application. Figure 12 This is a schematic diagram illustrating the effect of switching from the second waterway to the first waterway according to an embodiment of this application. The working process and principle of the press-to-switch waterway mechanism are illustrated here:

[0066] In the initial state, after pressing the water circuit switching mechanism to turn on the water, soft water is discharged from the first water channel and the first water outlet;

[0067] Press the button to press the rotating part of the water circuit switching mechanism to lift the central valve rod, and the flow channel switches to the second water channel, from which the shower water comes out from the second outlet;

[0068] After the button is released, it is pushed back to its initial position by the first reset elastic element, and the swinging element is swung to another position by the elastic arm (relative to the position of the swinging element in the initial state).

[0069] Press the button again to press down the rotating part of the water circuit switching mechanism and press down the central valve rod. The flow channel switches to the first water channel and soft water flows out from the first outlet.

[0070] This application embodiment also provides an external pull-out drawer, which may include: a drawer body (not shown in the figure), and a press-to-water-path switching mechanism 000 installed at the end of the drawer body. The press-to-water-path switching mechanism 000 may be any of the press-to-water-path switching mechanisms given above. For example, please refer to... Figure 13 , Figure 13 This is a schematic diagram of a press-to-switch water path switching mechanism provided in an embodiment of this application. The press-to-switch water path switching mechanism can be installed on the end of the pull-out head body.

[0071] 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.

[0072] 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 press-type water circuit switching mechanism, characterized in that, include: Base housing, switching valve, transmission components, swinging component, elastic arm, and buttons; The base shell extends along a first direction and is provided with a water inlet, a first water outlet, and a second water outlet along the first direction; the water flow path from the water inlet outlet to the first water outlet is a first water channel, and the water flow path from the water inlet outlet to the second water outlet is a second water channel. In the initial state, the water inlet is connected to the first water channel. The switching valve is slidably installed inside the base housing and its central axis is parallel to the first direction; One end of the transmission component is connected to the first end of the switching valve, and the other end is rotatably connected to the swing component; the button is located on the side of the swing component away from the transmission component and cooperates with the swing component; The elastic arm is mounted on the base shell and has two contact portions; The button is configured such that, during the process of moving the swing member to the first or second position in the second direction, the second end of the switching valve is driven to move in the direction close to or away from the button via the transmission component, so that the switching valve closes the first water channel and opens the second water channel or closes the second water channel and opens the first water channel, wherein the second direction is perpendicular to the first direction; at the first or second position, an elastic deformation is generated after a contact portion of the elastic arm abuts against the second end of the swing member.

2. The press-type water circuit switching mechanism according to claim 1, characterized in that, The transmission component includes: a sliding member and a rotating member arranged along a first direction; the swing member is connected to the sliding member in a transmission manner; the sliding member has an inner groove on the side opposite to the swing member; the rotating member is rotatably connected to the base shell and has a protruding handle on the side facing the sliding member; a portion of the protruding handle extends into the inner groove and is slidably connected to the side wall of the inner groove. The first end of the switching valve is limitedly connected to the rotating component, and the switching valve is not coaxial with the protruding handle.

3. The press-type water circuit switching mechanism according to claim 2, characterized in that, The rotating component includes: a support, a rotating shaft, and a protruding handle. The rotating shaft is fixedly connected to the side of the support and rotatably connected to the base shell. The protruding handle is fixed to the top of one end of the support, and the other end of the support has a limiting groove facing the switching valve. The first end of the switching valve is located in the limiting groove.

4. The press-type water circuit switching mechanism according to claim 2, characterized in that, The press-to-water-path switching mechanism includes: a first rotating shaft, which is connected to both the swing member and the sliding member, and is slidably connected to the base shell.

5. The press-type water circuit switching mechanism according to claim 2, characterized in that, The swing member has a limiting mounting groove on the side facing the slider, and a portion of the slider is located within the limiting mounting groove; The swing member can rotate relative to the slider until it contacts the edge of the limiting mounting groove.

6. The press-type water circuit switching mechanism according to any one of claims 1-5, characterized in that, The switching valve includes a central valve stem, the second end of which has an annular snap-fit ​​groove; the press-to-switch water circuit mechanism further includes a sealing ring installed in the snap-fit ​​groove. The second end of the central valve stem, in conjunction with a sealing ring, is used to open or close the first and second water channels.

7. The press-type water circuit switching mechanism according to claim 6, characterized in that, The press-to-switch water circuit mechanism further includes a reset elastic element, the two ends of which are in contact with the base housing and the second end of the central valve stem, respectively.

8. The press-type water circuit switching mechanism according to claim 6, characterized in that, The button has two symmetrically arranged and intersecting first driving slopes on the side facing the swing member; the swing member has two second driving slopes that cooperate with the two first driving slopes.

9. The press-type water circuit switching mechanism according to claim 6, characterized in that, The press-to-switch mechanism further includes a first reset elastic element installed between the button and the base shell, wherein the two ends of the first reset elastic element are in contact with the button and the base shell, respectively.

10. An external pull-out drawer, characterized in that, include: The pull-out head body and the press-to-water-path switching mechanism installed at the end of the pull-out head body, wherein the press-to-water-path switching mechanism is the press-to-water-path switching mechanism described in any one of claims 1-9.

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