Switching mechanism and liquid outlet device

Abstract

The embodiment of the utility model discloses a switching mechanism and a liquid outlet device, and relates to but is not limited to kitchen and bath technologies. The switching mechanism comprises a shell assembly, a switching assembly, a reset spring and a driving piece, wherein the shell assembly is provided with a liquid inlet flow channel, a mounting cavity and at least one liquid outlet flow channel. The mounting cavity is provided with a first position and a second position which are sequentially arranged in the first direction. The first position has a plurality of switching positions. The driving part can move relative to the switching assembly in the first direction under the action of external force, compresses the reset spring, drives the switching assembly to move out of one of the multiple switching positions after moving by a certain distance, and is at least partially located at the second position, so that the driving force generated by the reset spring can be prevented from acting on the switching assembly, and the switching effect is improved. Through the arrangement of the reset spring, in the process that the liquid drives the switching assembly to rotate, the reset spring does not hinder rotation of the switching assembly, rotation of the switching assembly can still be guaranteed under the condition that the liquid driving force is small, and then the stability of liquid path switching of the liquid outlet device is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to but is not limited to kitchen and bathroom technology, and in particular to a switching mechanism and a liquid outlet device. Background Art

[0002] Some liquid discharge devices generally move the switching component to the liquid driving position so that the switching component can rotate by the driving force of the liquid to switch the liquid path. The switching component generally uses a reset spring to reset, and during the rotation of the switching component, the reset spring is always in contact with the switching component, hindering the rotation of the switching component. Therefore, when the driving force of the liquid is small, the switching component may not rotate, resulting in the inability of the liquid discharge device to switch the liquid path. Utility Model Content

[0003] The present disclosure provides a switching mechanism and a liquid outlet device, aiming to solve the technical problem that a return spring in some liquid outlet devices is always in contact with a switching component, resulting in the liquid outlet device being unable to switch the liquid path when the liquid driving force is small.

[0004] The present disclosure provides a switching mechanism, comprising:

[0005] A housing assembly, comprising a liquid inlet channel, a mounting cavity and at least one liquid outlet channel, wherein the mounting cavity is connected 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, and the first position has a plurality of switching positions;

[0006] A switching component, movably mounted in the mounting cavity, the switching component is at least partially located in the first position, and is configured to be limitably connected to different switching positions to change the on-off state of the mounting cavity and at least one of the liquid outlet channels;

[0007] a return spring, disposed on the housing assembly, capable of generating a driving force to hold the switching assembly at the first position; and

[0008] A driving member is movably mounted on the shell assembly, and the driving member is configured to be able 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 to move out of one of the multiple switching positions after moving a certain distance, and at least partially locate in the second position, so that the switching assembly can be driven by the liquid entering the mounting cavity through the liquid inlet channel to rotate around the first direction to be limitedly connected with the shell assembly, so that after the external force is removed, the switching assembly can be moved out of the second position and limitedly connected to another one of the multiple switching positions under the action of the driving force and the limit of the shell assembly, and the driving member can be reset under the action of the return spring.

[0009] In some embodiments of the switching mechanism, the driving member includes a holding portion and a driving portion;

[0010] The abutment portion is located between the return spring and the switching assembly, and the driving force can act on the switching assembly through the abutment portion;

[0011] The driving part can drive the abutting part to separate from the switching component and compress the return spring through the abutting part. After moving a certain distance, the driving part drives the switching component to move out of one of the multiple switching positions and at least partially locate in the second position.

[0012] In some embodiments of the switching mechanism, the switching assembly is provided with a holding groove, and the holding portion is movably mounted in the holding groove;

[0013] The switching assembly is further provided with a through slot, the through slot and the abutting slot are coaxially arranged along the first direction and are connected to each other, the driving part passes through the through slot and abuts against a side of the abutting part away from the return spring.

[0014] In some embodiments of the switching mechanism, a first positioning groove is provided at the bottom of the abutting groove, and the abutting portion is provided with a positioning protrusion that is positioned and matched with the first positioning groove.

[0015] In some embodiments of the switching mechanism, the driving portion has a driving protrusion on the circumferential outer side. After the driving portion moves a certain distance, the driving protrusion can abut against the side of the switching component away from the abutting portion to drive the switching component to move out of one of the multiple switching positions and be at least partially located in the second position.

[0016] In some embodiments of the switching mechanism, a second positioning groove is provided on a side of the switching component away from the abutting portion, and the driving protrusion can be positioned and matched with the second positioning groove.

[0017] In some embodiments of the switching mechanism, a guide column extending along the first direction is provided on the housing assembly, and the abutting portion and the driving portion are respectively provided with a through groove and a guide groove that cooperate with the guide column for guidance.

[0018] In some embodiments of the switching mechanism, the housing assembly is provided with a flow guide, which is arranged in the mounting cavity and configured to guide the liquid to the switching assembly in a certain direction, so as to drive the switching assembly to rotate around the first direction until it is limitedly connected with the housing assembly;

[0019] The flow guide comprises a deflection portion and a flow limiting portion. The deflection portion faces the direction in which the liquid flows into the installation cavity and deflects in the direction. The flow limiting portion is arranged between the deflection portion and the housing assembly.

[0020] In some embodiments of the switching mechanism, the switching assembly has at least one stopper, each of the stoppers being capable of being at least partially located in the second position during the movement of the switching assembly out of one of the plurality of switching positions;

[0021] The housing assembly is provided with at least one first limiting portion, the first limiting portion being provided at 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;

[0022] The guide member is configured to guide the liquid to at least one of the stop members in a certain direction, so as to drive the switching assembly to rotate around the first direction until at least one of the stop members is in limiting connection with the first limiting portion.

[0023] In some embodiments of the switching mechanism, the switching assembly has at least one limiting member, the housing assembly is provided with at least one second limiting portion, and the second limiting portion is provided at the first position;

[0024] The number of the limiting members is consistent with the number of the switching positions, and each of the second limiting portions can be connected to different limiting members to limit the switching assembly to different switching positions;

[0025] The driving member is configured to be able 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 portion can be separated from one of the multiple limiting members, so that the switching assembly can be moved out of one of the multiple switching positions, and each of the stop members can be at least partially located in the second position, so that the switching assembly can be driven by the liquid to rotate around the first direction until at least one of the stop members is limit-connected with the first limiting portion, so that after the external force is removed, the switching assembly can be moved out of the second position under the action of the driving force and the limit of the limit-connected stop member and the first limiting portion, so that the second limiting portion can be limit-connected with another of the multiple limiting members, so that the switching assembly can be limit-connected to another of the multiple switching positions; or

[0026] The switching assembly has at least one limiting member, and the housing assembly is provided with at least one second limiting portion, and the second limiting portion is provided at the first position;

[0027] The number of the second limiting parts is consistent with the number of the switching positions, and each of the limiting members can be connected to different second limiting parts to limit the switching assembly to different switching positions;

[0028] The driving member is configured to be able to move relative to the switching component along the first direction under the action of an external force, compress the return spring, and drive the switching component after moving a certain distance, so that the limiting member can be separated from one of the multiple second limiting parts, so that the switching component can be moved out from one of the multiple switching positions, and each of the stop members can be at least partially located in the second position, so that the switching component can be driven by the liquid to rotate around the first direction until at least one of the stop members is limit-connected with the first limiting part, so that after the external force is removed, the switching component can be moved out of the second position under the action of the driving force and the limit of the stop member and the first limiting part, so that the limiting member can be limit-connected with another one of the multiple second limiting parts, so that the switching component can be limit-connected to another one of the multiple switching positions.

[0029] In some embodiments of the switching mechanism, one of the limiting member and the second limiting portion is a protruding structure, and the other has a groove structure, and the protruding structure can be received in the groove structure to enable the limiting member and the second limiting portion to be connected in a limiting manner.

[0030] In some embodiments of the switching mechanism, the protruding 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 spirally rises clockwise around the first direction, and the second guide surface spirally descends clockwise around the first direction;

[0031] The groove structure comprises 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 spirally rises clockwise around the first direction and can slide with the first guide surface, and the second groove bottom spirally descends clockwise around the first direction and can slide with the second guide surface;

[0032] After the external force is removed, the switching assembly can be moved out from the second position under the action of the driving force and the limit of the stopper connected to the limit position and the first limit portion, and the first guide surface can be in contact with the first groove bottom and slide relative to the first groove bottom, or the second guide surface can be in contact with the second groove bottom and slide relative to the second groove bottom, so that the protrusion structure can be accommodated in the groove structure.

[0033] In some embodiments of the switching mechanism, the housing assembly is provided with at least one third limiting portion, and the third limiting portion is provided in the mounting cavity;

[0034] The third limiting portion and the first limiting portion are arranged at intervals around the first direction, the third limiting portion has a first end arranged along the first direction facing the first position and a second end arranged away from the first position, the first limiting portion has a third end arranged facing the first position, and the plane where the third end is located is located between the first end and the second end along the first direction;

[0035] The stopper is configured to cooperate with the third limiting portion after the switching assembly is limitedly connected to different switching positions;

[0036] When the driving member moves a certain distance, the protrusion structure can be separated from the groove structure, and the stopper can be separated from the third limiting portion and at least partially located at the second position, so that it can be rotated around the first direction under the drive of the liquid to be in limiting cooperation with the first limiting portion;

[0037] After the external force is removed, the switching component can be moved out of the second position under the action of the driving force and the limitation of the stopper connected to the limit and the first limit part, the stopper can be separated from the first limit part, and can be rotated around the first direction under the drive of the liquid until it is limited to cooperate with the third limit part, and the protrusion structure can be accommodated in the groove structure so that the switching component is limitedly connected to another one of the multiple switching positions.

[0038] In some embodiments of the switching mechanism, the housing assembly is provided with a liquid separation surface facing the second position, and each of the liquid outlet channels can penetrate the liquid separation surface to form a liquid separation hole on the liquid separation surface that communicates with the mounting cavity;

[0039] The switching component includes an elastic portion, the switching component is limitedly connected to one of the multiple switching positions, and the elastic portion can elastically abut against the liquid separation surface to block at least one of the multiple liquid separation holes.

[0040] 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 disposed on the body.

[0041] The present disclosure also provides a liquid outlet device, comprising:

[0042] Switching mechanism as described above.

[0043] Implementing the embodiments of the present disclosure will have the following beneficial effects:

[0044] The switching mechanism of the above scheme is applied to the liquid outlet device. In addition to having a better liquid circuit switching effect, it can also avoid the reset spring from hindering the rotation of the switching component, thereby ensuring the stability of the liquid circuit switching of the liquid outlet device. Specifically, the switching mechanism includes a housing component having a liquid inlet channel, a mounting cavity and at least one liquid outlet channel, a switching component, a reset spring and a driving member. Among them, the mounting cavity has a first position and a second position sequentially arranged along a first direction. The first position has a plurality of switching positions. The driving member can move relative to the switching component along the first direction under the action of an external force, compress the reset spring, and drive the switching component to move out of one of the plurality of switching positions after moving a certain distance, and at least partially locate in the second position, so that the driving force generated by the reset spring can be avoided from acting on the switching component, so that in the process of the liquid driving the switching component to rotate, the reset spring does not hinder the rotation of the switching component, and the switching component can still be ensured to rotate when the liquid driving force is small, thereby ensuring the stability of the liquid circuit switching of the liquid outlet device.

[0045] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. Other advantages of the present disclosure can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure.

[0047] Figure 1 It is a structural schematic diagram of a switching mechanism in an embodiment of the present disclosure;

[0048] Figure 2 for Figure 1 An exploded structural diagram of the switching mechanism shown;

[0049] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0050] Figure 4 for Figure 1 A cross-sectional view of the switching mechanism shown;

[0051] Figure 5 for Figure 1 A cross-sectional view of the switching mechanism shown in another perspective;

[0052] Figure 6 for Figure 1 A schematic diagram of the structure of the liquid inlet part in the switching mechanism shown;

[0053] Figure 7 for Figure 1 A schematic diagram of the structure of a switching component in the switching mechanism shown;

[0054] Figure 8 for Figure 1 A schematic diagram of the structure of the liquid dispensing component in the switching mechanism shown;

[0055] 9A to 9D for Figure 1 A schematic diagram of the liquid flow direction of the switching mechanism shown;

[0056] Fig. 10A and Fig. 10B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the switching assembly is positionally connected to one of a plurality of switching positions;

[0057] Fig.11A and Fig. 11B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the stopper gradually breaks away from the restriction of the third limiting portion;

[0058] Fig. 12A and Fig. 12B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the stopper is limited by the first limiting portion;

[0059] Fig.13A and Fig. 13B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the stopper gradually breaks away from the restriction of the first limiting portion;

[0060] Fig.14A and Fig. 14B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the stopper is limited by the third limiting portion;

[0061] Fig.15A and Fig. 15B for Figure 1 A cross-sectional view of the switching mechanism shown, wherein the switching component reset limit is connected to another one of the multiple switching positions.

[0062] Description of Figure Numbers:

[0063] 10. Shell assembly; 11. Liquid inlet; 111. Connecting part; 12. Liquid dispensing part 12; 13. Cover plate; 14. Guide column; 20. Switch assembly; 21. Stopper; 211. Blade; 212. Stopper; 22. Limiter; 221. First guide surface; 222. Second guide surface; 23. Elastic part; 24. Body; 31. Driving member; 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 part; 61, first groove bottom; 62, second groove bottom; 70, liquid separation surface; 71, annular protrusion; 80, sealing member; 90, third limiting portion; 91, first end; 100, liquid inlet channel; 200, mounting cavity; 201, first position; 202, second position; 300, liquid outlet channel; 301, first liquid outlet channel; 302, second liquid outlet channel; 400, groove structure; 500, liquid separation hole; 501, first liquid separation hole; 502, second liquid separation hole; 600, supporting groove; 601, first positioning groove; 700, through groove; 800, second positioning groove; 900, through groove; 1000, guide groove.

[0064] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0065] The present disclosure describes multiple embodiments, but the description is exemplary rather than restrictive, and it is apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0066] 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 in the present disclosure may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present disclosure may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0067] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the disclosed steps, the method or process should not be limited to the steps in the specific order. As will be appreciated by those of ordinary skill in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the disclosed embodiments.

[0068] Some liquid discharge devices generally move the switching component to the liquid driving position so that the switching component can rotate by the driving force of the liquid to switch the liquid path. The switching component generally uses a reset spring to reset, and during the rotation of the switching component, the reset spring is always in contact with the switching component, hindering the rotation of the switching component. Therefore, when the driving force of the liquid is small, the switching component may not rotate, resulting in the inability of the liquid discharge device to switch the liquid path.

[0069] The embodiment of the present disclosure provides a switching mechanism and a liquid outlet device, which can be installed in various occasions such as companies, schools, homes, factories, etc. to improve people's quality of life and health. The liquid outlet device can be, but is not limited to, one or more combinations of a faucet, a shower, a top spray, and a spray gun.

[0070] Please combine Figure 1 , Figure 2 , Figure 4 , Figure 5 and 9A to 9D, the switching mechanism provided in the embodiment of the present disclosure is now described. The switching mechanism includes a housing assembly 10, a switching assembly 20, a return spring 32 and a driving member 31. The housing assembly 10 has a liquid inlet channel 100, a mounting cavity 200 and at least one liquid outlet channel 300. The mounting cavity 200 is connected between the liquid inlet channel 100 and the liquid outlet channel 300, and the mounting cavity 200 has a first position 201 and a second position 202 sequentially arranged along a first direction, and the first position 201 has a plurality of switching positions. In the embodiment of the present disclosure, the number of liquid outlet channels 300 is two, namely the first liquid outlet channel 301 and the second liquid outlet channel 302. The number of switching positions is four, namely the first switching position, the second switching position, the third switching position and the fourth switching position. It can be understood that in other embodiments, the number of liquid outlet channels 300 may also be other values. The number of switching positions may also be other values. Among them, the first direction is parallel to Figure 4 The direction indicated by the arrow X in the figure. The switching assembly 20 can be movably installed in the installation cavity 200. The switching assembly 20 is at least partially located in the first position 201, and is configured to be able to be limitedly connected to different switching positions to change the on-off state between the installation cavity 200 and at least one liquid outlet channel 300. In the embodiment of the present disclosure, the switching assembly 20 is limitedly connected to different switching positions to enable at least one of the two liquid outlet channels 300 to discharge liquid. Fig. 9A As shown, the switching assembly 20 is limitedly connected to the first switching position, and the first liquid outlet channel 301 and the second liquid outlet channel 302 discharge liquid at the same time. Fig. 9B As shown, the switching assembly 20 is limitedly connected to the second switching position, and only the first liquid outlet channel 301 discharges liquid. Fig. 9C As shown, 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 at the same time. Fig.9D As shown, the switching assembly 20 is limitedly connected to the fourth switching position, and only the second liquid outlet flow channel 302 discharges liquid. It can be understood that in other embodiments, the multiple 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 discharging liquid at the same time.

[0071] The return spring 32 is disposed on the housing assembly 10, and can generate a driving force to hold the switching assembly 20 at the first position 201, so that the switching assembly 20 is stably in a certain switching position. The return spring 32 can directly elastically abut against the switching assembly 20, and directly transmit the driving force to the switching assembly 20. The return spring 32 can also elastically abut against the switching assembly 20 through the driving member 31, and transmit the driving force to the switching assembly 20 through the driving member 31. The driving member 31 is movably mounted on the shell assembly 10, and the driving member 31 is configured to be able to move relative to the switching assembly 20 along a 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 multiple switching positions after moving a certain distance, and at least partially locate in the second position 202, so that the switching assembly 20 can be driven by the liquid entering the mounting cavity 200 from the liquid inlet channel 100 to rotate around the first direction to be limitedly connected with the shell assembly 10, that is, after the switching assembly 20 is moved out of one of the multiple switching positions, it can be driven by the liquid to rotate around the first direction to be limitedly connected with the shell assembly 10, so that after the external force is removed, the switching assembly 20 can be moved out of the second position 202 under the action of the driving force and the limit of the shell assembly 10 and be limitedly connected to another one of the multiple switching positions, and the driving member 31 can be reset under the action of the reset spring 32. Driven by the liquid and restricted by the shell assembly 10, the switching assembly 20 can rotate to a certain angle, so that when the switching assembly 20 is driven by the return spring 32 again, it can be limitedly connected to another one of the multiple switching positions to switch the on-off state of the liquid outlet channel 300. In the embodiment of the present disclosure, the shell assembly 10 is provided with a connecting portion 111. The connecting portion 111 can be connected to the external pipeline by means of, but not limited to, threaded connection, plug connection, snap connection or welding. The external pipeline can be a hose or a hard pipe. The external pipeline is configured to provide liquid to the liquid outlet device. The external pipeline can control the on-off state of the external pipeline by setting a manually controlled or electrically controlled valve structure to achieve connection or disconnection between the liquid outlet device and the liquid source. The liquid includes, but is not limited to, clean water or pure water from the municipal water network.

[0072] In summary, the implementation of the disclosed embodiment will have the following beneficial effects: the switching mechanism of the above scheme is applied to the liquid outlet device. In addition to having a better liquid circuit switching effect, it can also prevent the reset spring 32 from hindering the rotation of the switching component 20, thereby ensuring the stability of the liquid circuit switching of the liquid outlet device. Specifically, the switching mechanism includes a housing component 10 having a liquid inlet channel 100, a mounting cavity 200 and at least one liquid outlet channel 300, a switching component 20, a reset spring 32 and a driving member 31. Among them, the mounting cavity 200 has a first position 201 and a second position 202 arranged in sequence along the first direction. The first position 201 has multiple switching positions. The driving member 31 can move relative to the switching assembly 20 along a first direction under the action of an external force, compress the return spring 32, and drive the switching assembly 20 to move out of one of the multiple switching positions after moving a certain distance, and at least partially locate in the second position 202, so as to avoid the driving force generated by the return spring 32 from acting on the switching assembly 20, so that during the rotation of the liquid-driven switching assembly 20, the return spring 32 does not hinder the rotation of the switching assembly 20, and can still ensure the rotation of the switching assembly 20 when the liquid driving force is small, thereby ensuring the stability of the liquid path switching of the liquid outlet device.

[0073] In the exemplary embodiment, please combine Figures 3 to 5 , Fig. 10A , Fig.11A , Fig. 12A , Fig.13A , Fig.14A and Fig.15A The driving member 31 includes a supporting portion 311 and a driving portion 312. The supporting portion 311 is located between the reset spring 32 and the switching assembly 20. The driving force can act on the switching assembly 20 through the supporting portion 311. Thus, the setting of the supporting portion 311 can increase the area of ​​the reset spring 32 acting on the switching assembly 20, so that the driving force can act on the switching assembly 20 more stably, and the switching assembly 20 is held at the first position 201. The driving portion 312 can drive the supporting portion 311 to separate from the switching assembly 20, and compress the reset spring 32 through the supporting portion 311. After moving a certain distance, the driving portion 312 drives the switching assembly 20 to move out of one of the multiple switching positions and at least partially to the second position 202. In this way, during the rotation of the switching component 20, the abutting portion 311 can resist the driving force generated by the return spring 32, and the abutting portion 311 does not contact the switching component 20, which can reduce the contact surface area between the driving member 31 and the switching component 20, thereby reducing the resistance to the rotation of the switching component 20.

[0074] In the exemplary embodiment, please combine Figure 4 and Figure 5, the switching assembly 20 is provided with a supporting groove 600. The supporting portion 311 can be movably mounted on the supporting groove 600. In this way, the switching assembly 20 can limit the movement of the supporting portion 311 through the provision of the supporting groove 600, so as to ensure the stability of the cooperation between the supporting portion 311 and the switching assembly 20, and ensure the accuracy of the separation and abutment between the supporting portion 311 and the switching assembly 20. The switching assembly 20 is also provided with a through groove 700. The through groove 700 and the supporting groove 600 are coaxially arranged along the first direction and are interconnected. The driving portion 312 passes through the through groove 700 and abuts against the side of the supporting portion 311 away from the reset spring 32. In this way, the switching assembly 20 can limit the movement of the driving portion 312 through the provision of the through groove 700, so as to ensure the cooperation accuracy between the driving portion 312 and the supporting portion 311. In the embodiment of the present disclosure, the driving portion 312 is cylindrical and partially exposed to the housing assembly 10 to facilitate external force driving. The abutting portion 311 is in a disc shape, which ensures that the abutting portion 311 can have a larger contact surface area with the switching assembly 20, thereby ensuring the stability of the driving force transmission. In addition, the abutting portion 311 is in a disc shape, which also allows the abutting portion 311 to have a larger area facing the return spring 32, thereby ensuring the stability of the return spring 32 compressed by the abutting portion 311.

[0075] In an exemplary embodiment, please continue to refer to Figure 4 and Figure 5 , a first positioning groove 601 is provided at the bottom of the abutting groove 600, and a positioning protrusion 3111 is provided on the abutting portion 311 to be positioned and matched with the first positioning groove 601. In this way, by providing the first positioning groove 601 and the positioning protrusion 3111, the abutting accuracy between the abutting portion 311 and the switching component 20 can be further improved, and the abutting portion 311 is prevented from moving relative to the switching component 20 during the abutting process, thereby affecting the on-off state between the mounting cavity 200 and the liquid outlet channel 300. In the disclosed embodiment, the positioning protrusion 3111 is in a frustum shape, and the small end face of the positioning protrusion 3111 faces the first positioning groove 601. There is a rounded transition between the small end face and the circumferential wall of the positioning protrusion 3111, and between the circumferential wall and the abutting portion 311. The shape of the first positioning groove 601 matches the shape of the positioning protrusion 3111.

[0076] In the exemplary embodiment, please combine Figures 3 to 5, the circumferential outer side of the driving part 312 has a driving protrusion 3121. After the driving part 312 moves a certain distance, the driving protrusion 3121 can abut against the side of the switching component 20 away from the abutting part 311, so as to drive the switching component 20 to move out of one of the multiple switching positions and at least partially locate in the second position 202. In the embodiment of the present disclosure, the driving protrusion 3121 is annular and is located on the circumferential outer side of the driving part 312 around the first direction, so that the external force can be more evenly transmitted to the switching component 20 through the driving protrusion 3121, thereby ensuring the stability of the switching component 20 moving along the first direction. When the driving part 312 is in the initial state, the driving protrusion 3121 can be spaced apart from the switching component 20, ensuring that under the action of the driving member 31, the compression of the reset spring 32 occurs first, and then the movement of the switching component 20 occurs along the first direction, thereby preventing the reset spring 32 from hindering the rotation of the switching component 20.

[0077] In an exemplary embodiment, please continue to refer to Figures 3 to 5 , a second positioning groove 800 is provided on the side of the switching component 20 away from the abutting portion 311, and the driving protrusion 3121 can be positioned and matched with the second positioning groove 800. In this way, the setting of the second positioning groove 800 enables the switching component 20 to limit the movement of the driving protrusion 3121 to ensure the matching accuracy between the driving protrusion 3121 and the switching component 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 component 20 to move out of one of the multiple switching positions and at least partially locate in the second position 202.

[0078] In the exemplary embodiment, please combine Figure 4 and Figure 5 , a guide post 14 extending along the first direction is provided on the housing assembly 10, and the abutting portion 311 and the driving portion 312 are respectively provided with a through slot 900 and a guide slot 1000 which are guided and matched with the guide post 14. In this way, the movement accuracy of the abutting portion 311 and the driving portion 312 can be further improved through the guiding cooperation between the through slot 900 and the guide slot 1000 and the guide post 14. The guide post 14 can be inserted into the through slot 900 and partially extend into the guide slot 1000. In the embodiment of the present disclosure, the reset spring 32 is a coil spring and is sleeved on the guide post 14, so that the stability of the elastic deformation of the reset spring 32 can be ensured, and the directional accuracy of the elastic force generated by the reset spring 32 can be ensured.

[0079] In an exemplary embodiment, Figure 6As shown, the housing assembly 10 is provided with a flow guide 40, which is arranged in the mounting cavity 200 and is arranged to guide the liquid to the switching assembly 20 in a certain direction, so as to drive the switching assembly 20 to rotate around a first direction until it is limitedly connected with the housing assembly 10. In this way, the arrangement of the flow guide 40 can make the liquid have a certain flow direction, which is convenient for driving the switching assembly 20 to rotate 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, and the deflection portion 41 faces the direction in which the liquid flows into the mounting cavity 200 and deflects in this direction, so that when the liquid hits the deflection portion 41, it can follow the shape of the deflection portion 41 to generate a liquid flow that flows clockwise or counterclockwise around the axial direction of the switching assembly 20. The flow limiting portion 42 is disposed between the deflection portion 41 and the housing assembly 10 to limit the flow of one of the clockwise flow and the counterclockwise flow, so that the liquid in the mounting cavity 200 can drive the switching assembly 20 to rotate about the first direction roughly in the flow direction of the other of the clockwise flow and the counterclockwise flow. The flow limiting portion 42 may be, but is not limited to, a slat-shaped structure that can stop the flow. In the embodiments of the present disclosure, please refer to the embodiment of the present disclosure. Fig. 10B , Fig. 11B , Fig. 12B , Fig. 13B , Fig. 14B and Fig. 15B The setting of the deflection portion 41 can also avoid the switching component 20 from moving along the first direction and rotating around the first direction, and the deflection portion 41 can also abut against the switching component 20 to ensure the stability of the switching component 20 moving along the first direction and rotating around the first direction.

[0080] In the exemplary embodiment, please combine Figure 3 , Figure 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 can be at least partially located at the second position 202 during the process of the switching assembly 20 moving out of one of the multiple switching positions. The housing assembly 10 is provided with at least one first limiting portion 50, and the first limiting portion 50 is arranged at the second position 202, wherein the number of at least one of the stopper 21 and the first limiting portion 50 is consistent with the number of switching positions, so that the number of limiting matching positions of the switching assembly 20 and the housing assembly 10 at the second position 202 around the first direction can be consistent with the number of switching positions. In the embodiment of the present disclosure, the number of the stopper 21 is consistent with the number of switching positions, both of which are four. The number of the first limiting portion 50 is one. Since the position of the first limiting portion 50 is arranged on the movement path of the switching assembly 20 and protrudes from the housing assembly 10, it has a stopping effect on the liquid. Therefore, the smaller number of the first limiting portions 50 is conducive to the liquid flowing along the guidance of the guide member 40. It can be understood that in other embodiments, the number of the first limiting portions 50 can also be two, three or four. The flow guide 40 is configured to guide the liquid to at least one stopper 21 in a certain direction, so as to drive the switching assembly 20 to rotate around the first direction until at least one stopper 21 is in a limiting connection with the first limiting portion 50. In this way, the stopper 21 can form a limiting match with the first limiting portion 50 on the one hand, and can increase the area of ​​the switching assembly 20 that stops the liquid on the other hand, which is conducive to rotating around the first direction under the driving action of the liquid. Since the stopper 21 is conducive to the driving of the switching assembly 20 by the liquid, a large number of stoppers 21 is conducive to at least one stopper 21 being able to contact the liquid close to the upstream of the liquid flow to obtain a greater driving force. In the embodiment 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. Among them, the blade 211 can ensure that the stopper 21 has a sufficient area to contact the liquid. The stopper 212 can ensure the limiting accuracy and stability of the stopper 21 and the first limiting portion 50.

[0081] In the exemplary embodiment, please combine Figure 3 , Figure 7 and Figure 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 limiting members 22 is consistent with the number of switching positions, so that the number of limiting matching positions of the limiting member 22 and the second limiting portion 60 is ensured to be consistent with the number of switching positions. The limiting matching position of the limiting member 22 and the second limiting portion 60 may not overlap with the switching position. Each second limiting portion 60 can be connected to different limiting members 22 so that the switching assembly 20 is connected to different switching positions. The driving member 31 is configured to be able to 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 after moving a certain distance, so that the second limiting portion 60 can be separated from one of the multiple limiting portions 22, so that the switching assembly 20 can be moved out of one of the multiple switching positions, and each stopper 21 can be at least partially located in the second position 202, so that the switching assembly 20 can be driven by the liquid to rotate around the first direction until at least one stopper 21 is limitedly connected to the first limiting portion 50, so that after the external force is removed, the switching assembly 20 can be moved out of the second position 202 under the action of the driving force and the limit of the limit-connected stopper 21 and the first limiting portion 50, so that the second limiting portion 60 can be limitedly connected to another of the multiple limiting portions 22, so that the switching assembly 20 can be limitedly connected to another of the multiple switching positions. In this way, the switching position of the switching assembly 20 can be switched once, so as to complete the switching of a liquid circuit. 9A to 9D As shown, after the above switching process is repeated multiple times, 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 portions 60 is four. It can be understood that in other embodiments, the number of the second limiting portions 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 simultaneously connected to the corresponding second limiting portions 60, thereby improving the limiting stability of the switching assembly 20 in the switching position.

[0082] In another exemplary embodiment, the switching assembly 20 has at least one limit member 22, and the housing assembly 10 is provided with at least one second limit portion 60, and the second limit portion 60 is provided at the first position 201. The number of the second limit portions 60 is consistent with the number of switching positions, so that the number of limit matching positions of the limit member 22 and the second limit portion 60 can be consistent with the number of switching positions. The position of the limit matching of the limit member 22 and the second limit portion 60 may not overlap with the switching position. The switching position may also be located at the second limit portion 60, so that the position of the limit matching of the limit member 22 and the second limit portion 60 overlaps with the switching position. Each limit member 22 can be connected to different second limit portions 60 to limit the switching assembly 20 to different switching positions. The driving member 31 is configured to move relative to the switching assembly 20 along the first direction under the action of an external force, compress the return spring 32, and drive the switching assembly 20 after moving a certain 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 be moved out of one of the plurality of switching positions, and each stopper 21 can be at least partially located at the second position 202, so that the switching assembly 20 can rotate around the first direction under the drive of the liquid until at least one stopper 21 is limitedly connected with the first limiting portion 50, so that after the external force is removed, the switching assembly 20 can be moved out of the second position 202 under the action of the driving force and the limit of the limit-connected stopper 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 to another of the plurality of switching positions. In this way, the switching position of the switching assembly 20 can be switched once, so as to switch the liquid circuit once. After the above switching process is repeated for multiple times, the switching assembly 20 can return to the initial switching position. Since each stopper 21 can be at least partially located at the second position 202 during the process of the driving member 31 driving the switching assembly 20 to move out of one of the multiple switching positions, and the return spring 32 can drive the switching assembly 20 and move out of the second position 202 under the limit of the stopper 21 and the first limit part 50 connected to the limit, that is, before the switching assembly 20 is completely moved out of one of the multiple switching positions and before the switching assembly 20 is completely moved 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 fluid circuit switching.

[0083] In the exemplary embodiment, please combine Figure 3 , Figure 7 and Figure 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 connected in a limiting manner. 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, and the first guide surface 221 and the second guide surface 222 are coaxially arranged with the first direction, the first guide surface 221 spirally rises around the first direction in a clockwise manner, and the second guide surface 222 spirally descends around the first direction in a clockwise manner, so that adjacent positions of the first guide surface 221 and the second guide surface 222 can form an outer convex 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, and the first groove bottom 61 spirally rises around the first direction in a clockwise manner and can slide with the first guide surface 221, and the second groove bottom 62 spirally descends around the first direction in a clockwise manner and can slide with the second guide surface 222, so that the first groove bottom 61 and the second groove bottom 62 can form a groove for accommodating the outer convex tip. After the external force is removed, the switching assembly 20 can be moved out of the second position 202 under the action of the driving force and the limit of the stopper 21 and the first limit portion 50 connected to the limit, and 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 accuracy of the limit connection between the limiter 22 and the second limit portion 60, thereby ensuring the stability of the liquid circuit switching. In the disclosed embodiment, the number of the protrusion structures is four, and correspondingly, the number of the groove structures 400 is four, thereby ensuring the matching accuracy between the switching assembly 20 and the housing assembly 10 .

[0084] In the exemplary embodiment, please combine Figure 4 , Figure 5 , Figure 6 and FIG. 10A to FIG. 15BThe housing assembly 10 is provided with at least one third limiting portion 90, and the third limiting portion 90 is provided in the installation cavity 200. In the embodiment 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 around the first direction, and the third limiting portion 90 has a first end 91 arranged along the first direction facing the first position 201 and a second end arranged away from the first position 201. The first limiting portion 50 has a third end 51 arranged facing the first position 201, and the plane where the third end 51 is located is located between the first end 91 and the second end along the first direction. In this way, the third limiting portion 90 and the first limiting portion 50 partially overlap in the direction around the first direction, so that the switching component 20 is convenient to break away from the restriction of one of the third limiting portion 90 and the first limiting portion 50 and rotate a certain angle before being restricted by the other of the third limiting portion 90 and the first limiting portion 50, so that in the process of one liquid circuit switching, the switching component 20 moves back and forth once in the first direction and completes two angles of rotation, so as to avoid the switching component 20 completing the liquid circuit switching by only one rotation during the liquid circuit switching process, resulting in the switching component 20 rotating at an excessively large angle, causing a greater impact on the housing component 10. The stopper 21 is configured to cooperate with the third limit portion 90 after the switching assembly 20 is limitedly connected to different switching positions. In this way, after the switching assembly 20 is limitedly connected to different switching positions, it can be limited by the stopper 21 and the third limit portion 90 and the limiter 22 and the first limit portion 50 at the same time, further ensuring that the switching assembly 20 is stably in a certain switching position. During the process of the driving member 31 moving a certain distance, the protrusion structure can be separated from the groove structure 400, and the stopper 21 can be separated from the third limit portion 90 and at least partially located in the second position 202, so that it can be driven by the liquid to rotate around the first direction to cooperate with the first limit portion 50. After the external force is removed, the switching component 20 can be moved out of the second position 202 under the action of the driving force and the limitation of the stopper 21 connected to the limit and the first limit part 50, the stopper 21 can be separated from the first limit part 50, and can be rotated around the first direction under the drive of the liquid to be limited and matched with the third limit part 90, and the protrusion structure can be accommodated in the groove structure 400 so that the switching component 20 is limited and connected to another one of the multiple switching positions.

[0085] In the exemplary embodiment, please combine Figure 3 , Figure 5 , Figure 7 , Figure 8 , 9A to 9D and FIG. 10A to FIG. 15B, the housing assembly 10 is provided with a liquid separation surface 70 facing the second position 202, and each liquid outlet channel 300 can penetrate the liquid separation surface 70 to form a liquid separation hole 500 on the liquid separation surface 70 that is connected to the mounting cavity 200. In the embodiment of the present disclosure, the number of liquid outlet channels 300 is two, namely a first liquid outlet channel 301 and a second liquid outlet channel 302. The first liquid outlet channel 301 can form a first liquid separation hole 501 that is connected to the mounting cavity 200 on the liquid separation surface 70. The second liquid outlet channel 302 can form a second liquid separation hole 502 that is connected to the mounting cavity 200 on the liquid separation surface 70. The switching component 20 includes an elastic portion 23. The switching component 20 is limitedly connected to one of the multiple switching positions, and the elastic portion 23 can elastically abut against the liquid separation surface 70 to block at least one of the multiple liquid separation holes 500. In this way, the elastic part 23 can be arranged to better fit the liquid separation surface 70 by utilizing its elastic deformation ability, and can be partially accommodated in the first liquid separation hole 501 when passing through the first liquid separation hole 501, thereby increasing the sealing area of ​​the first liquid separation hole 501 and improving the blocking effect. Similarly, the elastic part 23 can be partially accommodated in the second liquid separation hole 502 when passing through the second liquid separation hole 502, thereby increasing the sealing area of ​​the second liquid separation hole 502 and improving the blocking effect. In the disclosed embodiment, the elastic part 23 can be made of an elastomeric material.

[0086] In this disclosure, please combine Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the housing assembly 10 includes a liquid inlet 11, a liquid separator 12 and a cover plate 13. The liquid inlet 11 and the liquid separator 12 together form a mounting cavity 200, and the liquid inlet channel 100, the flow guide 40, the first limiter 50, the third limiter 90 and the guide column 14 are arranged on the liquid inlet 11. The liquid separation surface 70 and the second limiter 60 are arranged on the liquid separator 12. The liquid separator 12 and the cover plate 13 together form a liquid outlet channel 300.

[0087] An annular protrusion 71 is convexly provided on the side of the liquid separation surface 70 facing the elastic part 23, and an annular protrusion 71 is provided around the circumferential outer side of each liquid separation hole 500. In this way, the annular protrusion 71 can be provided to improve the deformation degree of the elastic part 23 when the elastic part 23 abuts against the liquid separation surface 70, and at least the side of the annular protrusion 71 away from the liquid separation surface 70 can be wrapped to form a sealing structure surrounding the circumferential outer side of the liquid separation hole 500, further improving the sealing effect of the elastic part 23 on the liquid separation hole 500. In order to improve the sealing performance of the shell assembly 10, a sealing member 80 is also provided at the position where the driving part 312 extends from the shell assembly 10. An installation groove is provided on the shell assembly 10. The sealing member 80 is sleeved on the driving part 312 and accommodated in the installation groove.

[0088] In the exemplary embodiment, please combine Figures 3 to 5 and Figure 7 The switching assembly 20 also includes a body 24, and the stopper 21, the limiting member 22 and the elastic part 23 are all arranged on the body 24. Among them, the stopper 21 is located on the side of the body 24 facing the second position 202. The limiting member 22 and the elastic part 23 are located on the side of the body 24 facing the first position 201. Among them, the side of the body 24 facing the first position 201 is also provided with a connecting groove, and the elastic part 23 is installed in the connecting groove. In the embodiment of the present disclosure, the body 24 can be made of a hard material to improve the strength of the switching assembly 20 and ensure the accuracy of the liquid circuit switching.

[0089] In the embodiment of the present disclosure, the switching mechanism can introduce liquid into the installation cavity 200 through the liquid inlet channel 100. At this time, the switching component 20 is limitedly connected to one of the multiple switching positions. For example, the switching component 20 is limitedly connected to the second switching position, and only the first liquid outlet channel 301 discharges liquid. Fig. 9B , Fig. 10A and Fig. 10B Under the action of external force, the driving part 312 can drive the abutting part 311 to compress the reset spring 32, and separate the abutting part 311 from the switching assembly 20, and drive the switching assembly 20 to move out of the second switching position after moving a certain distance, so that the stopper 21 gradually breaks away from the restriction of the third limiting part 90, as shown in FIG. Fig.11A and Fig. 11B As shown; the stopper 21 is completely out of the restriction of the third limiting portion 90 and is at least partially located in the second position 202, the switching assembly 20 can be driven by the liquid to rotate around the first direction until the stopper 21 is limitedly connected with the first limiting portion 50, such as Fig. 12A and Fig. 12B After the external force is removed, the return spring 32 can be driven by the abutting portion 311 to move to the first position 201, and the stopper 21 gradually breaks away from the restriction of the first limiting portion 50, as shown Fig.13A and Fig. 13B As shown; the stopper 21 is completely out of the restriction of the first limiting portion 50, and rotates around the first direction under the drive of the liquid until the stopper 21 is limitedly connected with the third limiting portion 90, as Fig.14A and Fig. 14B and moves under the limit of the stopper 21 and the third limit portion 90 until the switching assembly 20 is limited and connected to the third switching position, and the first liquid outlet channel 301 and the second liquid outlet channel 302 simultaneously discharge liquid, such as Fig. 9C , Fig.15A and Fig. 15B shown.

[0090] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do 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.

[0091] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0092] Although the embodiments disclosed in the present disclosure are as above, the contents described are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. It should be noted that the above embodiments or embodiments are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A switching mechanism, characterized in that: include: A housing assembly, comprising a liquid inlet channel, a mounting cavity and at least one liquid outlet channel, wherein the mounting cavity is connected 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, and the first position has a plurality of switching positions; A switching component, movably mounted in the mounting cavity, the switching component is at least partially located in the first position, and is configured to be limitably connected to different switching positions to change the on-off state of the mounting cavity and at least one of the liquid outlet channels; a return spring, disposed on the housing assembly, capable of generating a driving force to hold the switching assembly at the first position; and A driving member is movably mounted on the shell assembly, and the driving member is configured to be able 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 to move out of one of the multiple switching positions after moving a certain distance, and at least partially locate in the second position, so that the switching assembly can be driven by the liquid entering the mounting cavity through the liquid inlet channel to rotate around the first direction to be limitedly connected with the shell assembly, so that after the external force is removed, the switching assembly can be moved out of the second position and limitedly connected to another one of the multiple switching positions under the action of the driving force and the limit of the shell assembly, and the driving member can be reset under the action of the return spring.

2. The switching mechanism according to claim 1, characterized in that: The driving member comprises a supporting portion and a driving portion; The abutment portion is located between the return spring and the switching assembly, and the driving force can act on the switching assembly through the abutment portion; The driving part can drive the abutting part to separate from the switching component and compress the return spring through the abutting part. After moving a certain distance, the driving part drives the switching component to move out of one of the multiple switching positions and at least partially locate in the second position.

3. The switching mechanism according to claim 2, characterized in that: The switching assembly is provided with a supporting groove, and the supporting portion can be movably mounted in the supporting groove; The switching assembly is further provided with a through slot, the through slot and the abutting slot are coaxially arranged along the first direction and are connected to each other, the driving part passes through the through slot and abuts against a side of the abutting part away from the return spring.

4. The switching mechanism according to claim 3, characterized in that: The bottom of the supporting groove is provided with a first positioning groove, and the supporting portion is provided with a positioning protrusion which is positioned and matched with the first positioning groove.

5. The switching mechanism according to claim 2, characterized in that: The driving portion has a driving protrusion on the circumferential outer side. After the driving portion moves a certain distance, the driving protrusion can abut against the side of the switching component away from the abutting portion to drive the switching component to move out of one of the multiple switching positions and at least partially locate in the second position.

6. The switching mechanism according to claim 5, characterized in that: A second positioning groove is provided on a side of the switching component away from the abutting portion, and the driving protrusion can be positioned and matched with the second positioning groove.

7. The switching mechanism according to claim 2, characterized in that: The housing assembly is provided with a guide column extending along the first direction, and the abutting portion and the driving portion are respectively provided with a through groove and a guide groove which cooperate with the guide column for guidance.

8. The switching mechanism according to claim 1, characterized in that: The housing assembly is provided with a flow guide, which is arranged in the installation cavity and is configured to guide the liquid to the switching assembly in a certain direction, so as to drive the switching assembly to rotate around the first direction until it is limitedly connected with the housing assembly; The flow guide comprises a deflection portion and a flow limiting portion. The deflection portion faces the direction in which the liquid flows into the installation cavity and deflects in the direction. The flow limiting portion is arranged between the deflection portion and the housing assembly.

9. The switching mechanism according to claim 8, characterized in that: The switch assembly has at least one stopper, each of the stoppers being capable of being at least partially located in the second position during the process of the switch assembly being moved out of one of the plurality of switch positions; The housing assembly is provided with at least one first limiting portion, the first limiting portion being provided at 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; The guide member is configured to guide the liquid in a certain direction to at least one of the stop members, so as to drive the switching assembly to rotate around the first direction until at least one of the stop members is in limiting connection with the first limiting portion.

10. The switching mechanism according to claim 9, characterized in that: The switching assembly has at least one limiting member, and the housing assembly is provided with at least one second limiting portion, and the second limiting portion is provided at the first position; The number of the limiting members is consistent with the number of the switching positions, and each of the second limiting portions can be connected to different limiting members to limit the switching assembly to different switching positions; The driving member is configured to be able 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 portion can be separated from one of the multiple limiting members, so that the switching assembly can be moved out of one of the multiple switching positions, and each of the stop members can be at least partially located in the second position, so that the switching assembly can be driven by the liquid to rotate around the first direction until at least one of the stop members is limit-connected with the first limiting portion, so that after the external force is removed, the switching assembly can be moved out of the second position under the action of the driving force and the limit of the limit-connected stop member and the first limiting portion, so that the second limiting portion can be limit-connected with another of the multiple limiting members, so that the switching assembly can be limit-connected to another of the multiple switching positions; or The switching assembly has at least one limiting member, and the housing assembly is provided with at least one second limiting portion, and the second limiting portion is provided at the first position; The number of the second limiting parts is consistent with the number of the switching positions, and each of the limiting members can be connected to different second limiting parts to limit the switching assembly to different switching positions; The driving member is configured to be able to move relative to the switching component along the first direction under the action of an external force, compress the return spring, and drive the switching component after moving a certain distance, so that the limiting member can be separated from one of the multiple second limiting parts, so that the switching component can be moved out from one of the multiple switching positions, and each of the stop members can be at least partially located in the second position, so that the switching component can be driven by the liquid to rotate around the first direction until at least one of the stop members is limit-connected with the first limiting part, so that after the external force is removed, the switching component can be moved out of the second position under the action of the driving force and the limit of the stop member and the first limiting part, so that the limiting member can be limit-connected with another one of the multiple second limiting parts, so that the switching component can be limit-connected to another one of the multiple switching positions.

11. The switching mechanism according to claim 10, characterized in that: One of the limiting member and the second limiting portion 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 portion are connected in a limiting manner.

12. The switching mechanism according to claim 11, characterized in that: The protruding structure comprises 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 spirally rises clockwise around the first direction, and the second guide surface spirally descends clockwise around the first direction; The groove structure comprises 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 spirally rises clockwise around the first direction and can slide with the first guide surface, and the second groove bottom spirally descends clockwise around the first direction and can slide with the second guide surface; After the external force is removed, the switching assembly can be moved out from the second position under the action of the driving force and the limit of the stopper connected to the limit position and the first limit portion, and the first guide surface can be in contact with the first groove bottom and slide relative to the first groove bottom, or the second guide surface can be in contact with the second groove bottom and slide relative to the second groove bottom, so that the protrusion structure can be accommodated in the groove structure.

13. The switching mechanism according to claim 12, characterized in that: The housing assembly is provided with at least one third limiting portion, and the third limiting portion is provided in the installation cavity; The third limiting portion and the first limiting portion are arranged at intervals around the first direction, the third limiting portion has a first end arranged along the first direction facing the first position and a second end arranged away from the first position, the first limiting portion has a third end arranged facing the first position, and the plane where the third end is located is located between the first end and the second end along the first direction; The stopper is configured to cooperate with the third limiting portion after the switching assembly is limitedly connected to different switching positions; When the driving member moves a certain distance, the protrusion structure can be separated from the groove structure, and the stopper can be separated from the third limiting portion and at least partially located at the second position, so that it can be rotated around the first direction under the drive of the liquid to be in limiting cooperation with the first limiting portion; After the external force is removed, the switching component can be moved out of the second position under the action of the driving force and the limitation of the stopper connected to the limit and the first limit part, the stopper can be separated from the first limit part, and can be rotated around the first direction under the drive of the liquid until it is limited to cooperate with the third limit part, and the protrusion structure can be accommodated in the groove structure so that the switching component is limitedly connected to another one of the multiple switching positions.

14. The switching mechanism according to claim 10, characterized in that: The housing assembly is provided with a liquid separation surface facing the second position, and each of the liquid outlet channels can penetrate the liquid separation surface to form a liquid separation hole on the liquid separation surface that is in communication with the mounting cavity; The switching component includes an elastic portion, the switching component is limitedly connected to one of the multiple switching positions, and the elastic portion can elastically abut against the liquid separation surface to block at least one of the multiple liquid separation holes.

15. The switching mechanism according to claim 14, characterized in that: The switching assembly further comprises a body, and the stopper, the limiting member and the elastic portion are all arranged on the body.

16. A liquid discharge device, characterized in that: include: A switching mechanism as claimed in any one of claims 1 to 15.

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