Switching mechanism and liquid output device

Abstract

A switching mechanism, comprising a housing assembly (10) having a liquid intake flow channel (100), a mounting cavity (200) and at least one liquid output flow channel (300), a switching assembly (20), a return spring (32) and a driving member (31), wherein the mounting cavity (200) has a first position (201) and a second position (202) which are sequentially arranged in a first direction, the first position (201) having a plurality of switching positions; and the driving member (31) can move relative to the switching assembly (20) in the first direction under the action of an external force to compress the return spring (32), drives the switching assembly (20) to move out of one of the plurality of switching positions after moving for a certain distance, and is at least partially located in the second position (202). Further disclosed is a liquid output device comprising the switching mechanism.

Description

Switching mechanism and liquid outlet device

[0001] The present application claims priority from the Chinese patent application No. 202421471061.1 filed on June 25, 2024, and the name of the invention is "Switching mechanism and liquid outlet device", the content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The embodiments of the present disclosure relate to, but are not limited to, kitchen and bathroom technology, and in particular to a switching mechanism and a liquid outlet device. BACKGROUND

[0003] Some liquid outlet devices generally move the switching component to the liquid driving position, so that the switching component can rotate by using the driving action of the liquid to realize the switching of the liquid path. The switching component generally uses a return spring to realize the reset, and the return spring is always in contact with the switching component during the rotation of the switching component, which hinders the rotation of the switching component. Therefore, in the case that the driving force of the liquid is small, the switching component does not rotate, which causes the liquid outlet device to be unable to switch the liquid path.

[0004] SUMMARY

[0005] The following is a summary of the subject matter of the detailed description of the present disclosure. This summary is not intended to limit the scope of protection of the claims.

[0006] The embodiments of the present disclosure provide a switching mechanism, comprising:

[0007] A housing assembly has a liquid inlet flow channel, a mounting cavity and at least one liquid outlet flow channel, the mounting cavity is communicated between the liquid inlet flow channel and the liquid outlet flow channel, the mounting cavity has a first position and a second position arranged in sequence along a first direction, and the first position has a plurality of switching positions;

[0008] A switching component is movably mounted in the mounting cavity, the switching component is at least partially located in the first position, and is arranged to be capable of being connected to different switching positions to change the on-off state of the mounting cavity and at least one liquid outlet flow channel;

[0009] A return spring is arranged in the housing assembly and can generate a driving force to resist the switching component in the first position; and

[0010] A driving member movably mounted to the housing assembly, the driving member being configured to be moved relative to the switching assembly along the first direction under an external force to compress the return spring and to drive the switching assembly out of one of the plurality of switching positions and at least partially into the second position after moving a distance, so that the switching assembly is rotatable about the first direction under the liquid driving force of the liquid entering the mounting cavity through the liquid inlet channel to be limitedly connected to the housing assembly, so that the switching assembly is movable out of the second position and to be limitedly connected to another one of the plurality of switching positions under the driving force and the limitation of the housing assembly after the external force is removed, and the driving member is configured to be reset under the return spring.

[0011] In some embodiments of the switching mechanism, the driving member comprises an abutting portion and a driving portion.

[0012] The abutting portion is located between the return spring and the switching assembly, and the driving force is configured to act on the switching assembly through the abutting portion.

[0013] The driving portion is configured to drive the abutting portion to separate from the switching assembly and compress the return spring through the abutting portion, and the driving portion is configured to drive the switching assembly out of one of the plurality of switching positions and at least partially into the second position after moving a distance.

[0014] In some embodiments of the switching mechanism, the switching assembly is provided with an abutting groove, and the abutting portion is movably mounted to the abutting groove.

[0015] The switching assembly is further provided with a through groove, and the through groove and the abutting groove are coaxially arranged along the first direction and communicate with each other, the driving portion passes through the through groove, and abuts against a side of the abutting portion away from the return spring.

[0016] In some embodiments of the switching mechanism, a groove bottom of the abutting groove is provided with a first positioning groove, and the abutting portion is provided with a positioning protrusion matched with the first positioning groove.

[0017] In some embodiments of the switching mechanism, a circumferential outer side of the driving portion has a driving protrusion, and the driving protrusion is configured to abut against a side of the switching assembly away from the abutting portion to drive the switching assembly out of one of the plurality of switching positions and at least partially into the second position after moving a distance.

[0018] In some embodiments of the switching mechanism, a side of the switching assembly away from the abutting portion is provided with a second positioning groove, and the driving protrusion is configured to be positioned matched with the second positioning groove.

[0019] In some embodiments of the switching mechanism, the housing assembly is provided with a guide post extending along the first direction, and the abutting portion and the driving portion are respectively provided with a through slot and a guide slot in guided cooperation with the guide post.

[0020] In some embodiments of the switching mechanism, the housing assembly is provided with a flow guide member disposed in the mounting cavity and configured to direct the liquid in a direction to drive the switching assembly to rotate about the first direction to the position of the housing assembly;

[0021] The flow guide member comprises a deflection portion and a flow limiting portion, the deflection portion faces and deflects the direction of the liquid flowing into the mounting cavity, and the flow limiting portion is disposed between the deflection portion and the housing assembly.

[0022] In some embodiments of the switching mechanism, the switching assembly has at least one stopper, each of which is at least partially located in the second position during movement of the switching assembly from one of the plurality of switching positions;

[0023] The housing assembly is provided with at least one first limiting portion disposed in the second position, wherein the number of at least one of the stopper and the first limiting portion is consistent with the number of the switching positions;

[0024] The flow guide member is configured to direct the liquid in a direction to at least one of the stoppers to drive the switching assembly to rotate about the first direction to at least one of the stoppers in limiting cooperation with the first limiting portion.

[0025] In some embodiments of the switching mechanism, the switching assembly has at least one stopper, each of which is at least partially located in the second position during movement of the switching assembly from one of the plurality of switching positions;

[0026] The number of the limiting members is consistent with the number of the switching positions, and each of the second limiting portions can be in limiting cooperation with a different limiting member to limit the switching assembly to a different switching position;

[0027] The driving member is arranged to move relative to the switching assembly along the first direction under the action of an external force, compress the reset spring, and drive the switching assembly after moving a distance, so that the second limiting part can be separated from one of the plurality of limiting members, so that the switching assembly can move out of one of the plurality of switching positions, and each of the stoppers can be at least partially located in the second position, so that the switching assembly can be rotated around the first direction under the driving of the liquid to at least one of the stoppers and the first limiting part limiting connection, so that the switching assembly can move out of the second position under the action of the driving force and the limiting of the limiting connection of the stopper and the first limiting part, so that the second limiting part can be limitingly connected with another of the plurality of limiting members, so that the switching assembly can be limitingly connected with another of the plurality of switching positions; or

[0028] The switching assembly has at least one limiting member, and the shell assembly is provided with at least one second limiting part, and the second limiting part is arranged in the first position;

[0029] The number of the second limiting parts is consistent with the number of the switching positions, and each of the limiting members can be limitingly connected with different second limiting parts, so that the switching assembly is limitingly connected with different switching positions;

[0030] The driving member is arranged to move relative to the switching assembly along the first direction under the action of an external force, compress the reset spring, and drive the switching assembly after moving a distance, so that the second limiting part can be separated from one of the plurality of limiting members, so that the switching assembly can move out of one of the plurality of switching positions, and each of the stoppers can be at least partially located in the second position, so that the switching assembly can be rotated around the first direction under the driving of the liquid to at least one of the stoppers and the first limiting part limiting connection, so that the switching assembly can move out of the second position under the action of the driving force and the limiting of the limiting connection of the stopper and the first limiting part, so that the second limiting part can be limitingly connected with another of the plurality of limiting members, so that the switching assembly can be limitingly connected with another of the plurality of switching positions; or

[0031] In some embodiments of the switching mechanism, one of the limiting member and the second limiting part is a protruding structure, and the other has a groove structure, and the protruding structure can be accommodated in the groove structure, so that the limiting member and the second limiting part are limitingly connected.

[0032] In some embodiments of the switching mechanism, the protrusion structure has a first guide surface and a second guide surface, the first guide surface and the second guide surface are coaxially arranged with the first direction, the first guide surface spirals upward clockwise around the first direction, and the second guide surface spirals downward clockwise around the first direction;

[0033] The groove structure has a first groove bottom and a second groove bottom. The first groove bottom and the second groove bottom are coaxially arranged with the first direction. The first groove bottom spirals upward clockwise around the first direction and can slide with the first guide surface. The second groove bottom spirals downward clockwise around the first direction and can slide with the second guide surface.

[0034] After the external force is removed, the switching component can move out of the second position under the action of the driving force and the limiting of the stop member and the first limiting part. Then, the first guide surface can be attached to the bottom of the first groove and slide relative to the bottom of the first groove, or the second guide surface can be attached to the bottom of the second groove and slide relative to the bottom of the second groove, so that the protruding structure can be received in the groove structure.

[0035] In some embodiments of the switching mechanism, the housing assembly is provided with at least one third limiting portion, which is disposed in the mounting cavity;

[0036] The third limiting part and the first limiting part are arranged at intervals around the first direction. The third limiting part has a first end facing the first position along the first direction and a second end facing away from the first position. The first limiting part has a third end facing the first position. The plane where the third end is located is located between the first end and the second end along the first direction.

[0037] The stop member is configured to engage with the third limiting part after the switching component is limited to different switching positions;

[0038] During the movement of the driving member a certain distance, the protruding structure can separate from the groove structure, and the stop member can separate from the third limiting part and be at least partially located in the second position so that it can rotate around the first direction under the drive of the liquid to cooperate with the first limiting part.

[0039] After the switching assembly is removed from the second position under the action of the driving force and the limiting connection of the stopper and the first limiting portion, the stopper can be separated from the first limiting portion and can be rotated in the first direction under the driving of the liquid to be limited in cooperation with the third limiting portion, and the protruding structure can be accommodated in the groove structure, so that the switching assembly is limited to be connected to another of the plurality of switching positions.

[0040] In some embodiments of the switching mechanism, the housing assembly is provided with a liquid distribution surface facing the second position, and each of the liquid outlet channels can pass through the liquid distribution surface to form a liquid distribution hole in communication with the mounting cavity at the liquid distribution surface.

[0041] The switching assembly includes an elastic portion, the switching assembly is limited to be connected to one of the plurality of switching positions, and the elastic portion can be elastically abutted to the liquid distribution surface to block at least one of the plurality of liquid distribution holes.

[0042] In some embodiments of the switching mechanism, the switching assembly further includes a body, and the stopper, the limiting member and the elastic portion are all arranged in the body.

[0043] The embodiments of the present disclosure also provide a liquid outlet device, which comprises:

[0044] The switching mechanism as described above.

[0045] The embodiments of the present disclosure have the following beneficial effects:

[0046] The switching mechanism of the above scheme is applied to the liquid outlet device, which can not only have a better liquid path switching effect, but also can avoid the reset spring from hindering the rotation of the switching assembly, thereby ensuring the stability of the liquid path switching of the liquid outlet device. Specifically, the switching mechanism includes a housing assembly having a liquid inlet channel, a mounting cavity and at least one liquid outlet channel, a switching assembly, a reset spring and a driving member. The mounting cavity has a first position and a second position arranged in sequence along a first direction. The first position has a plurality of switching positions. The driving member can move relative to the switching assembly along the first direction under the action of an external force, compress the reset spring, and drive the switching assembly to move out of one of the plurality of switching positions and at least partially locate in the second position after moving a distance, so that the driving force generated by the reset spring can be avoided to act on the switching assembly, so that the reset spring does not hinder the rotation of the switching assembly in the process of driving the switching assembly to rotate by the liquid, and the switching assembly can still be rotated under the condition that the driving force of the liquid is small, thereby ensuring the stability of the liquid path switching of the liquid outlet device.

[0047] Other aspects can become apparent after reading and understanding the drawings and detailed description.

[0048] SUMMARY

[0049] The accompanying drawings are intended to provide a better understanding of the technical scheme of the present disclosure, and constitute a part of the specification, and together with the embodiments of the present disclosure serve to explain the technical scheme of the present disclosure, and do not constitute a limitation on the technical scheme of the present disclosure.

[0050] Fig. 1 is a structural schematic diagram of a switching mechanism in an embodiment of the present disclosure;

[0051] Fig. 2 is an exploded structural schematic diagram of the switching mechanism shown in Fig. 1;

[0052] Fig. 3 is an enlarged structural schematic diagram of part A in Fig. 2;

[0053] Fig. 4 is a sectional view of the switching mechanism shown in Fig. 1;

[0054] Fig. 5 is a sectional view of the switching mechanism shown in Fig. 1 from another perspective;

[0055] Fig. 6 is a structural schematic diagram of a liquid inlet member in the switching mechanism shown in Fig. 1;

[0056] Fig. 7 is a structural schematic diagram of a switching assembly in the switching mechanism shown in Fig. 1;

[0057] Fig. 8 is a structural schematic diagram of a liquid distribution member in the switching mechanism shown in Fig. 1;

[0058] Figs. 9A to 9D are schematic diagrams of liquid flow directions of the switching mechanism shown in Fig. 1;

[0059] Figs. 10A and 10B are sectional views of the switching mechanism shown in Fig. 1, in which the switching assembly is limitingly connected to one of a plurality of switching positions;

[0060] Figs. 11A and 11B are sectional views of the switching mechanism shown in Fig. 1, in which the stopper is in a state of gradually leaving the limitation of the third limiting portion;

[0061] Figs. 12A and 12B are sectional views of the switching mechanism shown in Fig. 1, in which the stopper is in a state of being limited by the first limiting portion;

[0062] Figs. 13A and 13B are sectional views of the switching mechanism shown in Fig. 1, in which the stopper is in a state of gradually leaving the limitation of the first limiting portion;

[0063] Figs. 14A and 14B are sectional views of the switching mechanism shown in Fig. 1, in which the stopper is in a state of being limited by the third limiting portion;

[0064] Figs. 15A and 15B are sectional views of the switching mechanism shown in Fig. 1, in which the switching assembly is limitingly connected to another one of a plurality of switching positions.

[0065] Explanation of reference signs:

[0066] 10, housing assembly; 11, liquid inlet; 111, connecting part; 12, liquid distributor; 13, cover plate; 14, guide post; 20, switching assembly; 21, stopper; 211, blade; 212, stopper part; 22, limiting part; 221, first guide surface; 222, second guide surface; 23, elastic part; 24, body; 31, driving part; 311, abutting part; 3111, positioning protrusion; 312, driving part; 3121, driving protrusion; 32, return spring; 40, flow guide; 41, deflection part; 42, flow limiting part; 50, first limiting part; 51, third end; 60, second limiting part; 61, first groove bottom; 62, second groove bottom; 70, liquid distribution surface; 71, annular protrusion; 80, sealing part; 90, third limiting part; 91, first end; 100, liquid inlet flow channel; 200, mounting cavity; 201, first position; 202, second position; 300, liquid outlet flow channel; 301, first liquid outlet flow channel; 302, second liquid outlet flow channel; 400, groove structure; 500, liquid distribution hole; 501, first liquid distribution hole; 502, second liquid distribution hole; 600, abutting groove; 601, first positioning groove; 700, through groove; 800, second positioning groove; 900, through groove; 1000, guide groove.

[0067] DETAILED DESCRIPTION

[0068] The present disclosure describes a number of embodiments, but this description is exemplary rather than limiting and there can be numerous embodiments and implementations within the scope of the embodiments described in the disclosure that will occur to those skilled in the art. Although a number of possible combinations of features have been set forth in the appended figures and discussed in the detailed description, many other combinations of the disclosed features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or in replacement of any other feature or element in any other embodiment.

[0069] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed herein can also be combined with any conventional features or elements to form a unique application that is defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other applications to form another unique application that is defined by the claims. Thus, it will be understood that any of the features shown and / or discussed in the present disclosure can be implemented alone or in any appropriate combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Additionally, various modifications and changes can be made within the scope of the following claims.

[0070] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the particular order of steps, this description should not be construed as limiting upon the scope of the claims. Other steps can be performed in between described steps without departing from the spirit of the embodiments of the present disclosure. Use of the term "step" does not imply that all embodiments include the recited step. Further, words such as "thereafter", "then", "next", etc., are not necessarily used to indicate a chronological order, and are not necessarily used to indicate sequential or chronological phases. Embodiments can be practiced in which such phrases are used in different contexts. Thus, the particular order of the steps presented and / or described in the specification is not an inherent part of the embodiments of the present disclosure, but is a result of preference and / or simplicity of collating the description. The specification has been presented for the purpose of illustration and description and is not intended to limit the embodiments of the present disclosure in any way.

[0071] Some liquid outlet devices generally move the switching assembly to the liquid driving position, so that the switching assembly can rotate by the driving action of the liquid to realize the switching of the liquid path. The switching assembly generally uses a return spring to realize the reset, and the return spring is always in contact with the switching assembly during the rotation of the switching assembly, which hinders the rotation of the switching assembly. Therefore, in the case that the driving force of the liquid is small, the switching assembly does not rotate, which causes the liquid outlet device to be unable to switch the liquid path.

[0072] The embodiments of the present disclosure provide a switching mechanism and a liquid outlet device. The liquid outlet device can be installed in various environments such as companies, schools, families, and factories to improve the quality of life and health of people. The liquid outlet device can be, but is not limited to, any one or a combination of more than one of a water outlet, a shower, a top spray, and a spray gun.

[0073] Please refer to FIG. 1, FIG. 2, FIG. 4, FIG. 5 and FIG. 9A to FIG. 9D, the switching mechanism provided by the embodiment of the present disclosure will be described. The switching mechanism includes a housing assembly 10, a switching assembly 20, a reset spring 32 and a driving member 31. The housing assembly 10 has a liquid inlet flow channel 100, a mounting cavity 200 and at least one liquid outlet flow channel 300. The mounting cavity 200 is communicated between the liquid inlet flow channel 100 and the liquid outlet flow channel 300, and the mounting cavity 200 has a first position 201 and a second position 202 arranged in a first direction in sequence, and the first position 201 has a plurality of switching positions. In the embodiment of the present disclosure, the number of liquid outlet flow channels 300 is two, which are a first liquid outlet flow channel 301 and a second liquid outlet flow channel 302. The number of switching positions is four, which are a first switching position, a second switching position, a third switching position and a fourth switching position. It can be understood that in other embodiments, the number of liquid outlet flow channels 300 can also be other values. The number of switching positions can also be other values. The first direction is parallel to the direction indicated by arrow X in FIG. 4. The switching assembly 20 is movably mounted in the mounting cavity 200. The switching assembly 20 is at least partially located in the first position 201 and is arranged to be limitedly connected to different switching positions to change the on-off state of the mounting cavity 200 and the at least one liquid outlet flow channel 300. In the embodiment of the present disclosure, the switching assembly 20 is limitedly connected to different switching positions, so that at least one of the two liquid outlet flow channels 300 can flow out. As shown in FIG. 9A, the switching assembly 20 is limitedly connected to the first switching position, and the first liquid outlet flow channel 301 and the second liquid outlet flow channel 302 flow out together. As shown in FIG. 9B, the switching assembly 20 is limitedly connected to the second switching position, and only the first liquid outlet flow channel 301 flows out. As shown in FIG. 9C, the switching assembly 20 is limitedly connected to the third switching position, and the first liquid outlet flow channel 301 and the second liquid outlet flow channel 302 flow out together. As shown in FIG. 9D, the switching assembly 20 is limitedly connected to the fourth switching position, and only the second liquid outlet flow channel 302 flows out. It can be understood that in other embodiments, the plurality of switching positions can also include a fifth switching position. The switching assembly 20 is limitedly connected to the fifth switching position, and the first liquid outlet flow channel 301 and the second liquid outlet flow channel 302 stop flowing out together.

[0074] The reset spring 32 is arranged in the housing assembly 10 and can generate a driving force to resist the switching assembly 20 to the first position 201, so that the switching assembly 20 is stably arranged in a certain switching position. The reset spring 32 can be directly elastically abutted on the switching assembly 20 to directly transmit the driving force to the switching assembly 20. The reset spring 32 can also be elastically abutted on the switching assembly 20 through the driving member 31 to transmit the driving force to the switching assembly 20 through the driving member 31. The driving member 31 is movably arranged in the housing assembly 10, and the driving member 31 is arranged to be movable in the first direction relative to the switching assembly 20 to compress the reset spring 32, and to drive the switching assembly 20 to move out of one of the switching positions and at least partially locate in the second position 202 after moving a distance, so that the switching assembly 20 can be rotated in the first direction to be limitedly connected with the housing assembly 10 under the driving of the liquid entering the mounting cavity 200 through the liquid inlet channel 100, that is, the switching assembly 20 can be rotated in the first direction to be limitedly connected with the housing assembly 10 under the driving of the liquid after moving out of one of the switching positions, so that the switching assembly 20 can move out of the second position 202 under the driving of the driving force and the limitation of the housing assembly 10 and be limitedly connected with another one of the switching positions after the external force is removed, and the driving member 31 can be reset under the action of the reset spring 32. Under the driving of the liquid and the limitation of the housing assembly 10, the switching assembly 20 can be rotated by a certain angle, so that the switching assembly 20 can be limitedly connected with another one of the switching positions when being driven by the reset spring 32 again, and the on-off state of the liquid outlet channel 300 is switched. In the embodiment of the present disclosure, the housing assembly 10 is provided with a connecting portion 111. The connecting portion 111 can be connected with an external pipeline in a mode such as but not limited to threaded connection, plug-in connection, clamping connection or welding. The external pipeline can be a hose or a hard pipe. The external pipeline is arranged to provide liquid to the liquid outlet device. The external pipeline can be provided with a valve structure controlled manually or electrically to control the on-off state of the external pipeline and realize the communication or disconnection between the liquid outlet device and a liquid source. The liquid includes but is not limited to clean water or pure water from a municipal water network.

[0075] In summary, the embodiments of the present disclosure have the following beneficial effects: the switching mechanism of the above-mentioned scheme is applied to the liquid outlet device, in addition to having a better liquid path switching effect, it can also avoid the reset spring 32 from hindering the rotation of the switching assembly 20, and ensure the stability of the liquid path switching of the liquid outlet device. Specifically, the switching mechanism includes a housing assembly 10 having a liquid inlet channel 100, a mounting cavity 200, and at least one liquid outlet channel 300, a switching assembly 20, a reset spring 32, and a driving member 31. The mounting cavity 200 has a first position 201 and a second position 202 arranged in sequence along a first direction. The first position 201 has a plurality of switching positions. The driving member 31 can move relative to the switching assembly 20 along the first direction under the action of an external force, compress the reset spring 32, and drive the switching assembly 20 to move out of one of the plurality of switching positions after moving a distance, and at least partially located in the second position 202. In this way, the driving force generated by the reset spring 32 can be used to drive the switching assembly 20, so that during the rotation of the switching assembly 20 driven by the liquid, the reset spring 32 does not hinder the rotation of the switching assembly 20, and the switching assembly 20 can still be rotated under the condition that the driving force of the liquid is small, thereby ensuring the stability of the liquid path switching of the liquid outlet device.

[0076] In an exemplary embodiment, please refer to FIGS. 3-5, 10A, 11A, 12A, 13A, 14A, and 15A, the driving member 31 includes an abutting portion 311 and a driving portion 312. The abutting portion 311 is located between the reset spring 32 and the switching assembly 20, and the driving force can act on the switching assembly 20 through the abutting portion 311. In this way, by providing the abutting portion 311, the area of the reset spring 32 acting on the switching assembly 20 can be increased, so that the driving force can more stably act on the switching assembly 20 to abut the switching assembly 20 to the first position 201. The driving portion 312 can drive the abutting portion 311 to separate from the switching assembly 20, and compress the reset spring 32 through the abutting portion 311. The driving portion 312 drives the switching assembly 20 to move out of one of the plurality of switching positions after moving a distance, and at least partially located in the second position 202. In this way, during the rotation of the switching assembly 20, the abutting portion 311 can resist the driving force generated by the reset spring 32, and the abutting portion 311 does not contact the switching assembly 20, which can reduce the contact area between the driving member 31 and the switching assembly 20, thereby reducing the resistance to the rotation of the switching assembly 20.

[0077] In the exemplary embodiment, please refer to FIG. 4 and FIG. 5, the switching assembly 20 is provided with a bearing groove 600. The bearing part 311 is movably mounted in the bearing groove 600. Thus, the bearing groove 600 can limit the movement of the bearing part 311, so as to ensure the stability of the cooperation between the bearing part 311 and the switching assembly 20, and ensure the accuracy of the separation and bearing of the bearing part 311 and the switching assembly 20. The switching assembly 20 is also provided with a through groove 700. The through groove 700 and the bearing groove 600 are coaxially arranged along the first direction and are in communication with each other. The driving part 312 passes through the through groove 700 and abuts against the side of the bearing part 311 away from the reset spring 32. Thus, the through groove 700 can limit the movement of the driving part 312, so as to ensure the cooperation accuracy of the driving part 312 and the bearing part 311. In the embodiment of the present disclosure, the driving part 312 is in a cylindrical shape and is partially exposed outside the housing assembly 10, so as to be driven by external force. The bearing part 311 is in a disc shape, so as to ensure that the bearing part 311 has a large contact area with the switching assembly 20 and ensure the stability of the driving force transmission. In addition, the disc-shaped bearing part 311 has a large area facing the reset spring 32, so as to ensure the stability of the compression of the reset spring 32 by the bearing part 311.

[0078] In the exemplary embodiment, please refer to FIG. 4 and FIG. 5, the bottom of the bearing groove 600 is provided with a first positioning groove 601, and the bearing part 311 is provided with a positioning protrusion 3111 which is positioned and matched with the first positioning groove 601. Thus, the first positioning groove 601 and the positioning protrusion 3111 can further improve the bearing accuracy of the bearing part 311 and the switching assembly 20, so as to avoid the movement of the bearing part 311 relative to the switching assembly 20 during the bearing process, which affects the on-off state between the mounting cavity 200 and the liquid outlet flow channel 300. In the embodiment of the present disclosure, the positioning protrusion 3111 is in a frustum shape, and the small end surface of the positioning protrusion 3111 faces the first positioning groove 601. The small end surface and the circumferential wall of the positioning protrusion 3111 and the circumferential wall and the bearing part 311 all have a round corner transition. The shape of the first positioning groove 601 matches the shape of the positioning protrusion 3111.

[0079] In an exemplary embodiment, please refer to FIG. 3 to FIG. 5, the circumferential outer side of the driving part 312 is provided with a driving protrusion 3121, and after the driving part 312 moves a distance, the driving protrusion 3121 can abut against the side of the switching assembly 20 away from the bearing part 311 to drive the switching assembly 20 to move out of one of the plurality of switching positions and at least partially to the second position 202. In the embodiment of the present disclosure, the driving protrusion 3121 is annular and surrounds the circumferential outer side of the driving part 312 in the first direction, so that the external force can be more uniformly transmitted to the switching assembly 20 through the driving protrusion 3121, ensuring the stability of the movement of the switching assembly 20 in the first direction. When the driving part 312 is in the initial state, the driving protrusion 3121 can be spaced apart from the switching assembly 20, ensuring that under the action of the driving piece 31, the compression of the return spring 32 occurs first, and then the movement of the switching assembly 20 in the first direction occurs, avoiding the rotation of the switching assembly 20 being hindered by the return spring 32.

[0080] In an exemplary embodiment, please refer to FIG. 3 to FIG. 5, the side of the switching assembly 20 away from the bearing part 311 is provided with a second positioning groove 800, and the driving protrusion 3121 can be positioned and matched with the second positioning groove 800. In this way, through the arrangement of the second positioning groove 800, the movement of the driving protrusion 3121 can be limited, so as to ensure the cooperation precision between the driving protrusion 3121 and the switching assembly 20. In the embodiment of the present disclosure, the through groove 700 can penetrate the groove bottom of the second positioning groove 800 to form an annular surface surrounding the through groove 700. The driving protrusion 3121 can abut against the annular surface to drive the switching assembly 20 to move out of one of the plurality of switching positions and at least partially to the second position 202.

[0081] In an exemplary embodiment, please refer to FIG. 4 and FIG. 5, the housing assembly 10 is provided with a guide column 14 extending in the first direction, and the bearing part 311 and the driving part 312 are respectively provided with a through groove 900 and a guide groove 1000 which are guided and matched with the guide column 14. In this way, through the guide and matching of the through groove 900 and the guide groove 1000 with the guide column 14, the movement precision of the bearing part 311 and the driving part 312 can be further improved. The guide column 14 can be arranged in the through groove 900 and partially extend into the guide groove 1000. In the embodiment of the present disclosure, the return spring 32 is a spiral spring and is sleeved on the guide column 14, so as to ensure the stability of the elastic deformation of the return spring 32 and the direction precision of the elastic force generated by the return spring 32.

[0082] In an exemplary embodiment, as shown in FIG. 6, the housing assembly 10 is provided with a flow guide 40, which is arranged in the mounting cavity 200 and is configured to guide the liquid to the switching assembly 20 in a certain direction to drive the switching assembly 20 to rotate around the first direction to be limitedly connected with the housing assembly 10. In this way, the liquid has a certain flow direction through the arrangement of the flow guide 40, which facilitates the rotation of the switching assembly 20 around the first direction. In the embodiment of the present disclosure, the flow guide 40 includes a deflection portion 41 and a flow limiting portion 42. The deflection portion 41 faces the direction of the liquid flowing into the mounting cavity 200 and deflects in this direction, so that the liquid can flow along the shape of the deflection portion 41 to generate a clockwise liquid flow or a counterclockwise liquid flow around the axis of the switching assembly 20 when it hits the deflection portion 41. The flow limiting portion 42 is arranged between the deflection portion 41 and the housing assembly 10 to limit the flow of one of the clockwise liquid flow and the counterclockwise liquid flow, so that the liquid in the mounting cavity 200 can drive the switching assembly 20 to rotate around the first direction in the flow direction of the other one of the clockwise liquid flow and the counterclockwise liquid flow. The flow limiting portion 42 can be, but is not limited to, a batten-shaped structure, which can stop the liquid flow. In the embodiment of the present disclosure, please refer to FIGS. 10B, 11B, 12B, 13B, 14B and 15B together. The arrangement of the deflection portion 41 can also avoid the movement and rotation of the switching assembly 20 along and around the first direction, and the deflection portion 41 can also abut against the switching assembly 20 to ensure the stability of the movement and rotation of the switching assembly 20 along and around the first direction.

[0083] In the exemplary embodiments, please refer to FIG. 3, FIG. 6, FIG. 10B, FIG. 11B, FIG. 12B, FIG. 13B, FIG. 14B and FIG. 15B, the switching assembly 20 has at least one stopper 21, each of which is capable of being at least partially located in the second position 202 during the movement of the switching assembly 20 from one of the plurality of switching positions. The housing assembly 10 is provided with at least one first limiting part 50, which is arranged in the second position 202. The number of at least one of the stopper 21 and the first limiting part 50 is consistent with the number of switching positions, so as to ensure that the number of limiting cooperation positions of the switching assembly 20 with the housing assembly 10 in the second position 202 in the first direction is consistent with the number of switching positions. In the embodiments of the present disclosure, the number of stoppers 21 is consistent with the number of switching positions, which is four. The number of first limiting parts 50 is one. Since the position of the first limiting part 50 is arranged on the movement path of the switching assembly 20 and protrudes from the housing assembly 10, it has a blocking effect on the liquid. Therefore, a smaller number of first limiting parts 50 is beneficial to the flow of liquid guided by the flow guide 40. It can be understood that in other embodiments, the number of first limiting parts 50 can also be two, three or four. The flow guide 40 is arranged to guide the liquid in a certain direction to at least one stopper 21, so as to drive the switching assembly 20 to rotate in the first direction to at least one stopper 21 and the first limiting part 50. In this way, the stopper 21 can form a limiting cooperation with the first limiting part 50 on one hand, and on the other hand, it can increase the area of the switching assembly 20 to block the liquid, which is beneficial to the rotation of the switching assembly 20 in the first direction under the driving action of the liquid. Since the stopper 21 is beneficial to the driving of the switching assembly 20 by the liquid, a larger number of stoppers 21 is beneficial to the contact of at least one stopper 21 with the liquid flowing upstream, so as to obtain a greater driving force. In the embodiments of the present disclosure, the stopper 21 includes a blade 211 and a stopper 212 located on the circumferential outer side of the blade 211. The blade 211 can ensure that the stopper 21 has sufficient area to contact the liquid. The stopper 212 can ensure the limiting precision and stability of the stopper 21 and the first limiting part 50.

[0084] In the exemplary embodiment, please refer to FIG. 3, FIG. 7 and FIG. 8, the switching assembly 20 has at least one limiting member 22. The housing assembly 10 is provided with at least one second limiting portion 60. The second limiting portion 60 is arranged at the first position 201. The number of the limiting members 22 is consistent with the number of the switching positions, so as to ensure that the number of the limiting positions of the limiting members 22 and the second limiting portion 60 is consistent with the number of the switching positions. The limiting positions of the limiting members 22 and the second limiting portion 60 can not coincide with the switching positions. Each second limiting portion 60 can be limitedly connected with a different limiting member 22, so as to limit the connection of the switching assembly 20 with different switching positions. The driving member 31 is arranged to be capable of moving relative to the switching assembly 20 in the first direction under the action of an external force, compressing the return spring 32, and driving the switching assembly 20 after moving a distance, so that the second limiting portion 60 can be separated from one of the plurality of limiting members 22, so that the switching assembly 20 can move out of one of the plurality of switching positions, and each stop member 21 can be at least partially located at the second position 202, so that the switching assembly 20 can be rotated in the first direction under the driving of the liquid to limit the connection of the stop member 21 with the first limiting portion 50, so that after the external force is removed, the switching assembly 20 can move out of the second position 202 under the action of the driving force and the limiting connection of the stop member 21 with the first limiting portion 50, so that the second limiting portion 60 can be limitedly connected with another of the plurality of limiting members 22, so that the switching assembly 20 can be limitedly connected with another of the plurality of switching positions. Thus, the switching of the switching assembly 20 in one switching position can be completed, so as to complete the switching of the liquid path once. As shown in FIG. 9A to FIG. 9D, the above-mentioned switching process is repeated for multiple times, and the switching assembly 20 can return to the initial switching position. In the embodiment of the present disclosure, the number of the limiting members 22 is four, and the number of the second limiting portion 60 is four. It can be understood that in other embodiments, the number of the second limiting portion 60 can also be two, three or four, so that two limiting members 22, three limiting members 22 or four limiting members 22 can be limitedly connected with the corresponding second limiting portion 60, improving the limiting stability of the switching assembly 20 in the switching position.

[0085] In another exemplary embodiment, the switching assembly 20 has at least one limiting member 22, the housing assembly 10 is provided with at least one second limiting portion 60, and the second limiting portion 60 is arranged at the first position 201. The number of the second limiting portion 60 is consistent with the number of the switching positions, so that the number of the limiting positions of the limiting member 22 and the second limiting portion 60 is consistent with the number of the switching positions. The limiting positions of the limiting member 22 and the second limiting portion 60 can not coincide with the switching positions. The switching positions can also be located at the second limiting portion 60, so that the limiting positions of the limiting member 22 and the second limiting portion 60 coincide with the switching positions. Each limiting member 22 can be limitedly connected with a different second limiting portion 60, so that the switching assembly 20 is limitedly connected with different switching positions. The driving member 31 is arranged to be capable of moving relative to the switching assembly 20 in the first direction under the action of an external force, compressing the return spring 32, and driving the switching assembly 20 after moving a distance, so that the limiting member 22 can be separated from one of the plurality of second limiting portions 60, so that the switching assembly 20 can move out of one of the plurality of switching positions, and each stop member 21 can be at least partially located at the second position 202, so that the switching assembly 20 can be rotated in the first direction under the driving of the liquid to be limitedly connected with the first limiting portion 50 by the limiting of the stop member 21, so that after the external force is removed, the switching assembly 20 can move out of the second position 202 under the action of the driving force and the limiting of the limiting stop member 21 and the first limiting portion 50, so that the limiting member 22 can be limitedly connected with another of the plurality of second limiting portions 60, so that the switching assembly 20 can be limitedly connected with another of the plurality of switching positions. Thus, the switching of the switching assembly 20 can be completed once, so that the switching of the liquid path can be completed once. After the above switching process is repeated for multiple times, the switching assembly 20 can return to the initial switching position. Since each stop member 21 can be at least partially located at the second position 202 during the process of driving the switching assembly 20 to move out of one of the plurality of switching positions by the driving member 31, and the return spring 32 can drive the switching assembly 20 and move out of the second position 202 under the limiting of the limiting stop member 21 and the first limiting portion 50, that is, before the switching assembly 20 completely moves out of one of the plurality of switching positions and before the switching assembly 20 completely moves out of the second position 202, the switching assembly 20 will be limited by the housing assembly 10, ensuring the movement accuracy of the switching assembly 20, thereby ensuring the accuracy of the liquid path switching.

[0086] In the exemplary embodiment, please refer to FIG. 3, FIG. 7 and FIG. 8, one of the limiting member 22 and the second limiting portion 60 is a protruding structure, and the other has a groove structure 400. The protruding structure can be accommodated in the groove structure 400, so that the limiting member 22 and the second limiting portion 60 are limitedly connected. In the embodiment of the present disclosure, the limiting member 22 is a protruding structure. The second limiting portion 60 has a groove structure 400. The protruding structure has a first guide surface 221 and a second guide surface 222, which are coaxially arranged with the first direction, the first guide surface 221 spirally rises clockwise around the first direction, and the second guide surface 222 spirally descends clockwise around the first direction, so that the adjacent positions of the first guide surface 221 and the second guide surface 222 can form an outward protruding tip. The groove structure 400 has a first groove bottom 61 and a second groove bottom 62, which are coaxially arranged with the first direction, the first groove bottom 61 spirally rises clockwise around the first direction and can be slidably matched with the first guide surface 221, and the second groove bottom 62 spirally descends clockwise around the first direction and can be slidably matched with the second guide surface 222, so that the first groove bottom 61 and the second groove bottom 62 can form a groove accommodating the outward protruding tip. After the switching assembly 20 is moved out of the second position 202 under the action of the driving force and the limited connection of the stopper 21 and the first limiting portion 50, the first guide surface 221 can be attached to the first groove bottom 61 and slide relative to the first groove bottom 61 or the second guide surface 222 can be attached to the second groove bottom 62 and slide relative to the second groove bottom 62, so that the protruding structure can be accommodated in the groove structure 400, ensuring the precision of the limiting connection of the limiting member 22 and the second limiting portion 60, and further ensuring the stability of the liquid path switching. In the embodiment of the present disclosure, the number of protruding structures is four, and correspondingly, the number of groove structures 400 is four, which ensures the matching precision between the switching assembly 20 and the housing assembly 10.

[0087] In the exemplary embodiments, please refer to FIG. 4, FIG. 5, FIG. 6 and FIG. 10A to FIG. 15B, the housing assembly 10 is provided with at least one third limiting portion 90, which is arranged in the mounting cavity 200. In the embodiments of the present disclosure, the number of the third limiting portion 90 is one. The third limiting portion 90 and the first limiting portion 50 are arranged at intervals along the first direction, the third limiting portion 90 has a first end 91 arranged along the first direction to face the first position 201 and a second end arranged away from the first position 201, and the first limiting portion 50 has a third end 51 arranged to face the first position 201, the plane where the third end 51 is located is between the first end 91 and the second end along the first direction, so that the third limiting portion 90 and the first limiting portion 50 partially overlap along the direction around the first direction, which facilitates the switching assembly 20 to be released from the restriction of one of the third limiting portion 90 and the first limiting portion 50 and to rotate by a certain angle, and then to be restricted by the other one of the third limiting portion 90 and the first limiting portion 50, so that the switching assembly 20 moves back and forth along the first direction once and rotates by an angle twice in the process of liquid path switching once, avoiding that the switching assembly 20 completes the liquid path switching through only one rotation in the process of liquid path switching, which causes the rotation angle of the switching assembly 20 to be too large and causes a relatively large impact on the housing assembly 10. The stopper 21 is arranged to limit and cooperate with the third limiting portion 90 after the switching assembly 20 is limitedly connected to different switching positions. In this way, the switching assembly 20 can be restricted by the stopper 21 and the third limiting portion 90 and restricted by the limiting piece 22 and the first limiting portion 50 after being limitedly connected to different switching positions, which further ensures that the switching assembly 20 is stably located at a certain switching position. In the process of moving a distance by the driving piece 31, the protruding structure can be separated from the groove structure 400, and the stopper 21 can be separated from the third limiting portion 90 and at least partially located in the second position 202, so as to be able to rotate around the first direction to limit and cooperate with the first limiting portion 50 under the driving of the liquid. After the switching assembly 20 is removed from the second position 202 under the action of the driving force and the limitation of the stopper 21 and the first limiting portion 50, the stopper 21 can be separated from the first limiting portion 50 and can rotate around the first direction to limit and cooperate with the third limiting portion 90 under the driving of the liquid, and the protruding structure can be accommodated in the groove structure 400, so that the switching assembly 20 is limitedly connected to another one of the plurality of switching positions.

[0088] In the exemplary embodiments, please refer to FIG. 3, FIG. 5, FIG. 7, FIG. 8, FIG. 9A to FIG. 9D and FIG. 10A to FIG. 15B, the housing assembly 10 is provided with a distribution surface 70 facing the second position 202, and each liquid outlet channel 300 can pass through the distribution surface 70 to form a distribution hole 500 in the distribution surface 70 that is in communication with the mounting cavity 200. In the embodiments of the present disclosure, the number of liquid outlet channels 300 is two, which are a first liquid outlet channel 301 and a second liquid outlet channel 302. The first liquid outlet channel 301 can form a first distribution hole 501 in the distribution surface 70 that is in communication with the mounting cavity 200. The second liquid outlet channel 302 can form a second distribution hole 502 in the distribution surface 70 that is in communication with the mounting cavity 200. The switching assembly 20 includes an elastic part 23. The switching assembly 20 is limited to connect to one of the plurality of switching positions, and the elastic part 23 can elastically abut against the distribution surface 70 to block at least one of the plurality of distribution holes 500. In this way, the elastic part 23 can better adhere to the distribution surface 70 by using its elastic deformation capability, and can be partially accommodated in the first distribution hole 501 when passing through the first distribution hole 501, thereby increasing the sealing area of the first distribution hole 501 and improving the blocking effect. Similarly, the elastic part 23 can be partially accommodated in the second distribution hole 502 when passing through the second distribution hole 502, thereby increasing the sealing area of the second distribution hole 502 and improving the blocking effect. In the embodiments of the present disclosure, the elastic part 23 can be made of an elastomer material.

[0089] In the embodiments of the present disclosure, please refer to FIG. 1, FIG. 2, FIG. 4, FIG. 5, FIG. 6 and FIG. 8, the housing assembly 10 includes a liquid inlet piece 11, a distribution piece 12 and a cover plate 13. The liquid inlet piece 11 and the distribution piece 12 enclose the mounting cavity 200, and the liquid inlet channel 100, the flow guide piece 40, the first limiting part 50, the third limiting part 90 and the guide column 14 are arranged on the liquid inlet piece 11. The distribution surface 70 and the second limiting part 60 are arranged on the distribution piece 12. The distribution piece 12 and the cover plate 13 enclose the liquid outlet channel 300.

[0090] The side of the distribution surface 70 facing the elastic part 23 is provided with an annular protrusion 71, and the circumferential outer side of each distribution hole 500 is provided with an annular protrusion 71. In this way, the deformation degree of the elastic part 23 can be improved when the elastic part 23 abuts against the distribution surface 70 by providing the annular protrusion 71, and at least one side of the annular protrusion 71 away from the distribution surface 70 can be wrapped to form a sealing structure around the circumferential outer side of the distribution hole 500, thereby further improving the blocking effect of the elastic part 23 on the distribution hole 500. In order to improve the sealing performance of the housing assembly 10, the position where the driving part 312 extends out of the housing assembly 10 is also provided with a sealing piece 80. The housing assembly 10 is provided with a mounting groove. The sealing piece 80 is sleeved on the driving part 312 and accommodated in the mounting groove.

[0091] In the exemplary embodiment, please refer to FIGS. 3-5 and 7, the switching assembly 20 further comprises a body 24, the stopper 21, the limiting member 22 and the elastic part 23 are all arranged on the body 24. The stopper 21 is arranged on the side of the body 24 facing the second position 202. The limiting member 22 and the elastic part 23 are arranged on the side of the body 24 facing the first position 201. The side of the body 24 facing the first position 201 is further provided with a connecting groove, and the elastic part 23 is arranged in the connecting groove. In the embodiment, the body 24 can be made of hard material to improve the strength of the switching assembly 20 and ensure the accuracy of the liquid path switching.

[0092] In the embodiment, the switching mechanism can introduce liquid into the installation cavity 200 through the liquid inlet channel 100, and at this time, the switching assembly 20 is limitedly connected to one of the plurality of switching positions. For example, the switching assembly 20 is limitedly connected to the second switching position, and only the first liquid outlet channel 301 discharges liquid, as shown in FIGS. 9B, 10A and 10B. Under the action of external force, the driving part 312 can drive the abutting part 311 to compress the reset spring 32, and make the abutting part 311 separate from the switching assembly 20, and after moving a distance, drive the switching assembly 20 to move out of the second switching position, so that the stopper 21 gradually separates from the limitation of the third limiting part 90, as shown in FIGS. 11A and 11B; the stopper 21 completely separates from the limitation of the third limiting part 90 and is at least partially located in the second position 202, and the switching assembly 20 can be rotated in the first direction under the drive of liquid to be limitedly connected to the first limiting part 50, as shown in FIGS. 12A and 12B; after the external force is removed, the reset spring 32 can be driven by the abutting part 311 to move to the first position 201, and the stopper 21 gradually separates from the limitation of the first limiting part 50, as shown in FIGS. 13A and 13B; the stopper 21 completely separates from the limitation of the first limiting part 50 and is rotated in the first direction under the drive of liquid to be limitedly connected to the third limiting part 90, as shown in FIGS. 14A and 14B; and the stopper 21 and the third limiting part 90 are limitedly connected, and the switching assembly 20 is limitedly connected to the third switching position, and the first liquid outlet channel 301 and the second liquid outlet channel 302 discharge liquid together, as shown in FIGS. 9C, 15A and 15B.

[0093] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "perimeter", "mouth structure" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0094] In the description of the embodiments of the present disclosure, unless specifically defined and limited otherwise, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0095] Although the embodiments disclosed in the present disclosure are as above, the content described is only the embodiments adopted for the convenience of understanding the present disclosure, and is not intended to limit the present disclosure. It should be noted that the above examples or embodiments are only exemplary and not limiting. Therefore, the present disclosure is not limited to the specific embodiments shown and described herein. Various modifications, replacements or omissions can be made to the forms and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A switching mechanism, comprising: A housing assembly has a liquid inlet channel, a mounting cavity, and at least one liquid outlet channel. The mounting cavity communicates between the liquid inlet channel and the liquid outlet channel. The mounting cavity has a first position and a second position sequentially arranged along a first direction. The first position has multiple switching positions. A switching component is movably mounted in the mounting cavity, the switching component being at least partially located in the first position and configured to be limited to different switching positions to change the on / off state of the mounting cavity and at least one of the liquid outlet channels; A reset spring, disposed in the housing assembly, is capable of generating a driving force to hold the switching component against the first position; and A drive member, movably mounted to the housing assembly, is configured to move relative to the switching assembly in a first direction under the action of an external force, compressing the return spring and, after moving a certain distance, driving the switching assembly to move out from one of the plurality of switching positions and at least partially to the second position, such that the switching assembly can rotate about the first direction under the drive of liquid entering the mounting cavity from the liquid inlet channel to a limiting connection with the housing assembly, so that after the external force is removed, the switching assembly can move out from the second position under the action of the driving force and the limiting connection of the housing assembly and be limited to another of the plurality of switching positions, and the drive member can be reset under the action of the return spring.

2. The switching mechanism according to claim 1, wherein, The driving component includes a supporting part and a driving part; The abutment is located between the reset spring and the switching assembly, and the driving force can act on the switching assembly through the abutment; The driving unit can drive the supporting part to separate from the switching component and compress the reset spring through the supporting part. After moving a certain distance, the driving unit drives the switching component to move out from one of the plurality of switching positions and at least partially to the second position.

3. The switching mechanism according to claim 2, wherein, The switching component is provided with a support groove, and the support part is movably installed in the support groove; The switching component is also provided with a through groove, the through groove and the abutment groove are coaxially arranged along the first direction and are interconnected, the driving part passes through the through groove and abuts against the side of the abutment part away from the reset spring.

4. The switching mechanism according to claim 3, wherein, The bottom of the abutment groove is provided with a first positioning groove, and the abutment part is provided with a positioning protrusion that positions and cooperates with the first positioning groove.

5. The switching mechanism according to claim 2, wherein, The drive unit has a drive protrusion on its circumferential outer side. After the drive unit moves a certain distance, the drive protrusion can abut against the side of the switching component away from the abutment, so as to drive the switching component to move out of one of the plurality of switching positions and at least partially to the second position.

6. The switching mechanism according to claim 5, wherein, The switching component has a second positioning groove on the side opposite to the abutment, and the driving protrusion can be positioned and engaged with the second positioning groove.

7. The switching mechanism according to claim 2, characterized in that, The housing assembly is provided with a guide post extending along the first direction, and the supporting part and the driving part are respectively provided with a through groove and a guide groove that guide and cooperate with the guide post.

8. The switching mechanism according to claim 1, wherein, The housing assembly is provided with a flow guide, which is disposed in the mounting cavity and configured to guide the liquid in a certain direction to the switching assembly, so as to drive the switching assembly to rotate around the first direction until it is in a limiting connection with the housing assembly; The flow guide includes a deflection portion and a flow limiting portion. The deflection portion faces the direction in which the liquid flows into the mounting cavity and deflects in that direction. The flow limiting portion is disposed between the deflection portion and the housing assembly.

9. The switching mechanism according to claim 8, wherein, The switching component has at least one stop, each of the stopes being at least partially located in the second position as the switching component moves out of one of the plurality of switching positions; The housing assembly is provided with at least one first limiting part, which is disposed at the second position, wherein the number of at least one of the stop member and the first limiting part is the same as the number of the switching positions; The flow guide is configured to direct liquid in a certain direction to at least one of the stop members, so as to drive the switching component to rotate around the first direction until at least one of the stop members is limited and connected to the first limiting part.

10. The switching mechanism according to claim 9, wherein, The switching component has at least one limiting member, and the housing component is provided with at least one second limiting part, the second limiting part being disposed at the first position; The number of limiting members is the same as the number of switching positions, and each second limiting part can be limited and connected with different limiting members so that the switching component is limited and connected to different switching positions; The driving member is configured to move relative to the switching assembly along the first direction under the action of an external force, compress the return spring, and drive the switching assembly after moving a certain distance, so that the second limiting part can separate from one of the plurality of limiting members, allowing the switching assembly to move out from one of the plurality of switching positions, and each of the stops can be at least partially located in the second position, allowing the switching assembly to rotate around the first direction under the drive of the liquid until at least one of the stops is limitedly connected to the first limiting part, so that after the external force is removed, the switching assembly can move out from the second position under the action of the driving force and the limitation of the limited stop and the first limiting part, allowing the second limiting part to be limitedly connected to another of the plurality of limiting members, allowing the switching assembly to be limitedly connected to another of the plurality of switching positions; or The switching component has at least one limiting member, and the housing component is provided with at least one second limiting part, the second limiting part being disposed at the first position; The number of the second limiting parts is the same as the number of the switching positions, and each limiting member can be limited and connected to different second limiting parts so that the switching component is limited and connected to different switching positions; The driving member is configured to move relative to the switching assembly along the first direction under the action of an external force, compress the return spring, and drive the switching assembly after moving a certain distance, so that the limiting member can separate from one of the plurality of second limiting portions, so that the switching assembly can move out from one of the plurality of switching positions, and each of the stop members can be at least partially located in the second position, so that the switching assembly can rotate around the first direction under the drive of the liquid until at least one of the stop members is limitedly connected to the first limiting portion, so that after the external force is removed, the switching assembly can move out from the second position under the action of the driving force and the limitation of the stop member and the first limiting portion, so that the limiting member can be limitedly connected to another of the plurality of second limiting portions, so that the switching assembly can be limitedly connected to another of the plurality of switching positions.

11. The switching mechanism according to claim 10, wherein, One of the limiting member and the second limiting part is a protruding structure, and the other has a groove structure. The protruding structure can be received in the groove structure so that the limiting member and the second limiting part are connected in a limiting manner.

12. The switching mechanism according to claim 11, wherein, The protruding structure has a first guide surface and a second guide surface, which are coaxially arranged with the first direction. The first guide surface spirals upward clockwise around the first direction, and the second guide surface spirals downward clockwise around the first direction. The groove structure has a first groove bottom and a second groove bottom. The first groove bottom and the second groove bottom are coaxially arranged with the first direction. The first groove bottom spirals upward clockwise around the first direction and can slide with the first guide surface. The second groove bottom spirals downward clockwise around the first direction and can slide with the second guide surface. After the external force is removed, the switching component can move out of the second position under the action of the driving force and the limiting of the stop member and the first limiting part. Then, the first guide surface can be attached to the bottom of the first groove and slide relative to the bottom of the first groove, or the second guide surface can be attached to the bottom of the second groove and slide relative to the bottom of the second groove, so that the protruding structure can be received in the groove structure.

13. The switching mechanism according to claim 12, wherein, The housing assembly is provided with at least one third limiting part, which is disposed in the mounting cavity; The third limiting part and the first limiting part are arranged at intervals around the first direction. The third limiting part has a first end facing the first position along the first direction and a second end facing away from the first position. The first limiting part has a third end facing the first position. The plane where the third end is located is located between the first end and the second end along the first direction. The stop member is configured to engage with the third limiting part after the switching component is limited to different switching positions; During the movement of the driving member a certain distance, the protruding structure can separate from the groove structure, and the stop member can separate from the third limiting part and be at least partially located in the second position so that it can rotate around the first direction under the drive of the liquid to cooperate with the first limiting part. After the external force is removed, the switching component can move out of the second position under the action of the driving force and the limiting of the stop member connected to the first limiting part. The stop member can separate from the first limiting part and can rotate around the first direction under the drive of the liquid to cooperate with the limiting part of the third limiting part. The protruding structure can be received in the groove structure so that the switching component is limited to another of the plurality of switching positions.

14. The switching mechanism according to claim 10, wherein, The housing assembly is provided with a liquid distribution surface facing the second position, and each of the liquid outlet channels can penetrate the liquid distribution surface to form a liquid distribution hole communicating with the mounting cavity on the liquid distribution surface; The switching component includes an elastic part, which is limited to one of the plurality of switching positions. The elastic part can elastically abut against the liquid distribution surface to block at least one of the plurality of liquid distribution holes.

15. The switching mechanism according to claim 14, wherein, The switching component also includes a body, and the stop, the limiting member and the elastic part are all disposed on the body.

16. A liquid dispensing device, comprising: The switching mechanism as described in any one of claims 1 to 15.

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