Waterway switching device and shower head

Abstract

The application discloses a water path switching device, which comprises a water passing body, a water distributing part, a fixing disc, an elastic part and a driving shaft. The water passing body is provided with a containing cavity. The water distributing part and the fixing disc are coaxially arranged in the containing cavity. The water distributing part comprises a water distributing disc which can switch the water path when rotating. The driving shaft penetrates through the fixing disc and is used for being pressed by a user to rotate the water distributing disc. The elastic part is used for driving the water distributing part to reset. The water distributing part further comprises a rotating shaft. The rotating shaft is coaxial with the fixing disc, one end of the rotating shaft is coaxially connected with the water distributing disc, and the other end of the rotating shaft is in contact with the driving shaft. The fixing disc and the inner wall of the containing cavity are respectively and uniformly provided with a plurality of first and second guide protrusions. The second guide protrusions are staggered with the first guide protrusions. The circumferential surface of the other end of the rotating shaft is uniformly provided with a plurality of cylindrical rib strips. The cylindrical rib strips are located between the first and second guide protrusions. The forces of the elastic part and the driving shaft on the water distributing part respectively drive the cylindrical rib strips to move along the first and second guide protrusions to rotate the water distributing part, so that the water path is switched. The water path switching device has the advantages of compact structure and simple operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shower function switching, in particular to a waterway switching device and a shower. BACKGROUND

[0002] With the continuous updating and replacement of shower products, the existing shower is generally designed with multiple water functions to meet the different use requirements of users, and multiple waterways are designed inside the shower to match different water functions, so a waterway switching structure needs to be configured on the shower to realize the switching of the water function. The existing waterway switching structure is mostly a linkage structure of a button and a water distribution disc, the button is arranged at the handle position, the water distribution disc is arranged at the panel position, and the two are transmitted through a mechanical linkage structure. Due to the scattered design, the existing waterway switching structure not only causes the structure of the shower to become complex and bulky, which is difficult to meet the increasingly light and thin design requirements, but also has a relatively high precision requirement for parts, and there is often an unsmooth operation in the use process, resulting in poor user experience. SUMMARY

[0003] The purpose of the present application is to provide a waterway switching device and a shower with compact structure design and simple and smooth operation.

[0004] In order to achieve the above purpose, one of the solutions of the present application is:

[0005] A waterway switching device, comprising a water passing body, a water distribution part, a fixed disc, an elastic member and a driving shaft, the water passing body is provided with a cavity, the water distribution body and the fixed disc are coaxially arranged in the cavity, the water distribution body comprises a water distribution disc capable of switching the waterway of the water passing body when rotating; the driving shaft penetrates the fixed disc and is used for user pressing operation to rotate the water distribution disc; the elastic member is used to reset the water distribution body after being pressed; the water distribution part further comprises a rotating shaft; the rotating shaft is coaxially arranged with the fixed disc, one end of the rotating shaft is coaxially connected with the water distribution disc, and the other end of the rotating shaft is in contact with the driving shaft; the fixed disc and the inner wall circumference of the cavity are respectively and uniformly provided with a plurality of first guide protrusions and second guide protrusions, the second guide protrusions are arranged in an upper and lower staggered manner with the first guide protrusions; a plurality of cylindrical ribs are uniformly arranged on the circumferential surface of the other end of the rotating shaft, the cylindrical ribs are located between the first guide protrusions and the second guide protrusions; the forces of the elastic member and the driving shaft on the water distribution part respectively drive the cylindrical ribs to move along the first guide protrusions and the second guide protrusions to rotate the water distribution part, so as to realize the waterway switching of the water passing body.

[0006] The lower side of the first guide protrusion comprises a first descending slope and a first ascending slope, the upper side of the second guide protrusion comprises a second descending slope and a second ascending slope, and the upper end of the second descending slope is opposite to the gap between two adjacent first guide protrusions in the axial direction, and the lower end of the second descending slope is opposite to the lower end of the first ascending slope in the axial direction.

[0007] The water passing body is provided with a water inlet channel and a plurality of water distribution channels; the accommodating cavity is divided into a water passing cavity and a mounting cavity arranged coaxially by a partition layer; the water inlet channel is communicated to the water passing cavity; a plurality of water distribution holes are arranged on the circumference of the partition layer close to the water passing cavity, and the water distribution holes are communicated to the water distribution channels one by one; the water distribution disc is located in the water passing cavity, and a water passing gap is arranged on the circumferential surface of the water distribution disc, the water passing gap is opposite to a water distribution hole of the water distribution disc with the rotation of the water distribution disc; the other end of the rotating shaft penetrates through the partition layer and extends into the mounting cavity; the fixing disc is sealingly matched with the mounting cavity, the first guide protrusion is arranged on the circumference of the fixing disc close to the partition layer, the second guide protrusion is arranged on the circumference of the partition layer close to the fixing disc, and the elastic member is arranged between the water passing cavity and the water distribution disc to make the water distribution disc tightly adhere to the partition layer.

[0008] The water inlet channel and the water distribution channel are respectively arranged at two ends of the water passing body along the long axis direction of the water passing body; the axial direction of the accommodating cavity is perpendicular to the long axis direction of the water passing body, the water inlet channel is communicated to the side wall of the water passing cavity, the water distribution hole is arranged along the axial direction of the accommodating cavity, and the water distribution channel is communicated to the side surface of the water distribution hole.

[0009] The water passing body comprises a water inlet half body and a water distribution half body; the water inlet channel is arranged on the water inlet half body, the accommodating cavity and the water distribution channel are arranged on the water distribution half body, and the water inlet half body is sealingly matched at the opening of the water passing cavity.

[0010] Preferably, a first sealing ring is arranged at the connection between the water inlet half body and the water distribution half body.

[0011] A first through hole is arranged on the partition layer for the rotating shaft to penetrate, and a plurality of accommodation gaps matched with the cylindrical ribs are arranged on the side wall of the first through hole.

[0012] A second through hole is arranged on the fixing disc for the driving shaft to movably match; a limiting flange is protruded along the radial direction of the driving shaft and formed at one end of the driving shaft close to the water distribution member, and the limiting flange movably matches the inner side of the second through hole.

[0013] Preferably, the waterway switching device further comprises a second sealing ring and a fixed cover; the fixed disc is provided with a mounting groove at the outer side end of the second through hole, the second sealing ring is sleeved on the outer periphery of the driving shaft and fitted in the mounting groove; and the fixed cover is detachably fitted on the water passing body and covers the surface of the fixed disc.

[0014] Preferably, the circumferential surface of the fixed disc is sealingly fitted with the mounting cavity through a third sealing ring.

[0015] The waterway switching device further comprises a guide shaft; the driving shaft is coaxially arranged with the rotating shaft of the water distribution piece, the guide shaft is arranged in the water passing cavity and sequentially penetrates the water distribution piece and the driving shaft; and the elastic member is a spring sleeved on the guide shaft.

[0016] Preferably, the water distribution piece is provided with a third through hole penetrating the water distribution disc and the rotating shaft, one end of the driving shaft close to the water distribution piece is provided with a movable groove, the upper end of the guide shaft is movably arranged in the third through hole and inserted into the movable groove; the lower end of the guide shaft is formed with a step along the radial direction of the guide shaft; and the two ends of the elastic member are respectively applied to the third through hole and the step.

[0017] Preferably, the inner wall of the water passing cavity is provided with a shaft groove for the rotating cooperation of the lower end of the guide shaft.

[0018] The waterway switching device further comprises a sealing sleeve sleeved on the surface of the water distribution disc, and the sealing sleeve is made of elastic material.

[0019] The waterway switching device further comprises a button for user operation; the middle section of the button is pivotally fitted on the water passing body, and one end of the button is arranged opposite to the driving shaft.

[0020] Preferably, the waterway switching device further comprises a positioning bead assembly arranged at the other end of the button; the side surface of the other end of the button is provided with a mounting hole; the surface of the water passing body is provided with a protruding portion arranged opposite to the other end of the button, and the side wall of the protruding portion is provided with a positioning hole; the positioning bead assembly comprises a positioning spring and a positioning bead arranged in the mounting hole in sequence, the positioning spring drives the positioning bead to tightly contact the side wall of the protruding portion, and the positioning bead is embedded in or separated from the positioning hole along with the swing of the button.

[0021] Preferably, the surface of the water passing body is provided with a shaft portion for the pivotal fitting of the button.

[0022] The second solution of the present application is:

[0023] A shower head comprising the water path switching device, a shower body, a water passing pipe, a water sealing base and a water outlet assembly; the water path switching device, the water passing pipe, the water sealing base and the water outlet assembly are all installed on the shower body, and the water path flows along the water passing pipe, the water path switching device, the water sealing base and the water outlet assembly in sequence.

[0024] The water sealing base is provided with a plurality of function cavities for the water passing body to communicate, the inlet end of the function cavity communicates with different water paths of the water passing body, and the outlet end of the function cavity communicates with the water outlet assembly.

[0025] Preferably, the water outlet assembly comprises a water outlet surface cover and a bubbler; the peripheral surface of the water outlet surface cover is provided with an elastic sheet opposite to the water path switching device.

[0026] After the above technical scheme is adopted, the present application has the following technical effects:

[0027] ①By integrating the water path switching structure of the shower head into an independent device, the structure design is compact, and the space occupied is small;

[0028] ②The water passing body is provided with a water inlet channel and a water distribution channel, and a water distribution piece is arranged between the water inlet channel and the water distribution channel to realize the communication and switching of the water inlet channel and the water distribution channel; the first guide protrusion and the second guide protrusion between the fixed disc and the partition layer form a track groove for the cylindrical rib of the water distribution piece to move and guide; when the water distribution piece is driven by the shaft to move axially, the cylindrical rib will move along the track groove to make the water distribution piece rotate, so that the water passing gap on the water distribution piece communicates with a water distribution hole to achieve the purpose of water path switching;

[0029] ③For the user, only the driving shaft needs to be pressed, and the water path switching can be completed by pushing the water distribution piece by the driving shaft; the force exerted by the user is directly transmitted to the water distribution piece for switching function through the driving shaft, and the traditional linkage structure is omitted, so that the operation becomes simple, more labor-saving and smooth. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a three-dimensional view of the water path switching device of the embodiment of the present application Figure 1 ;

[0031] Figure 2 It is a three-dimensional view of the water path switching device of the embodiment of the present application Figure 2 ;

[0032] Figure 3 It is an exploded view of the water path switching device of the embodiment of the present application Figure 1 ;

[0033] Figure 4 It is an exploded view of the water path switching device of the embodiment of the present application Figure 2 ;

[0034] Figure 5 A sectional view of the water distribution member and the fixed disc of a specific embodiment of the present application;

[0035] Figure 6 A schematic diagram of the working principle of the water distribution member of a specific embodiment of the present application;

[0036] Figure 7 A schematic diagram of the state of the water route switching device before switching operation of a specific embodiment of the present application;

[0037] Figure 8 A schematic diagram of the state of the water route switching device during switching operation of a specific embodiment of the present application;

[0038] Figure 9 A schematic diagram of the state of the water route switching device after switching operation of a specific embodiment of the present application;

[0039] Figure 10 An exploded view of the shower head of a specific embodiment of the present application;

[0040] Figure 11 A sectional view of the shower head of a specific embodiment of the present application;

[0041] Explanation of the reference numerals:

[0042] 1----water passing body; 1a---water inlet half body; 1b---water distribution half body;

[0043] 11---water inlet channel; 12---water distribution channel; 13---partition layer;

[0044] 131---water distribution hole; 132---second guide protrusion; 1321---second descending slope;

[0045] 1322---second ascending slope; 133---first through hole; 1331---accommodation notch;

[0046] 14---water passing cavity; 15---mounting cavity; 16---shaft groove;

[0047] 17---protruding part; 171---positioning hole; 18---shaft part;

[0048] 2----water distribution member; 21---water distribution disc; 211---water passing notch;

[0049] 22---rotating shaft; 221---cylindrical rib; 23---third through hole;

[0050] 3----fixed disc; 31---first guide protrusion; 311---first descending slope;

[0051] 312 - first upward slope; 32 - second through hole; 33 - mounting groove;

[0052] 4 - elastic member; 5 - driving shaft; 51 - limiting flange;

[0053] 52 - movable groove; 6 - first sealing ring; 7 - second sealing ring;

[0054] 8 - fixed cover; 9 - third sealing ring; 10 - guide shaft;

[0055] 101 - step; 20 - sealing sleeve; 30 - button;

[0056] 301 - mounting hole; 40 - positioning bead assembly; 401 - positioning spring;

[0057] 402 - positioning bead; 50 - shower body; 60 - water pipe;

[0058] 70 - water sealing seat; 701 - functional cavity; 80 - water outlet cover;

[0059] 801 - elastic sheet; 90 - bubbler. DETAILED DESCRIPTION

[0060] In order to further explain the technical solutions of the present application, the present application will be described in detail below through specific embodiments.

[0061] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0062] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope to be protected by the present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope to be protected by the present application.

[0063] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0064] In the description of the embodiments of the present application, it needs to be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the purpose of simplifying the description of the embodiments of the present application, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0065] In addition, the terms "first", "second", "third", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0066] In the description of the embodiments of the present application, it also needs to be explained that, unless otherwise specifically specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In the present application, unless otherwise specifically specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0068] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0069] In addition, the present application provides various specific examples of processes and materials, but one of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0070] Reference Figures 1 to 9 As shown, the present application discloses a waterway switching device, comprising a water passing body 1, a water distribution member 2, a fixed disc 3, an elastic member 4 and a driving shaft 5, the water passing body 1 is provided with a containing cavity, the water distribution member 2 and the fixed disc 3 are coaxially arranged in the containing cavity, the water distribution member 2 comprises a water distribution disc 21 capable of switching the waterway of the water passing body 1 when rotating; the driving shaft 5 penetrates through the fixed disc 3, for user pressing operation to rotate the water distribution disc 21; the elastic member 4 is used to reset the water distribution member 2 after being pressed;

[0071] The water distribution member 2 further comprises a rotating shaft 22; the rotating shaft 22 is coaxially arranged with the fixed disc 3, one end of the rotating shaft 22 is coaxially connected with the water distribution disc 21, and the other end of the rotating shaft 22 is in contact with the driving shaft 5;

[0072] The fixed disc 3 and the inner wall of the containing cavity are respectively and uniformly provided with a plurality of first guide protrusions 31 and second guide protrusions 132 on the circumference, the second guide protrusions 132 are arranged in an upper and lower staggered manner with the first guide protrusions 31; a plurality of cylindrical rib strips 221 are uniformly arranged on the circumferential surface of the other end of the rotating shaft 22, and the cylindrical rib strips 221 are located between the first guide protrusions 31 and the second guide protrusions 132;

[0073] The forces of the elastic member 4 and the driving shaft 5 on the water distribution member 2 respectively drive the cylindrical rib strips 221 to move along the first guide protrusions 31 and the second guide protrusions 132 to rotate the water distribution member 2, so as to realize the waterway switching of the water passing body 1.

[0074] The following shows a specific embodiment of the waterway switching device.

[0075] Reference Figure 5 The lower side of the first guide protrusion 31 comprises a first descending slope 311 and a first ascending slope 312, the upper side of the second guide protrusion 132 comprises a second descending slope 1321 and a second ascending slope 1322, and the upper end of the second descending slope 1321 is opposite to the gap between the adjacent two first guide protrusions 31 in the axial direction, and the lower end of the second descending slope 1321 is opposite to the lower end of the first ascending slope 312 in the axial direction. Reference Figure 6The dotted circle in the figure is the moving track of the cylindrical rib 221: in normal state, the cylindrical rib 221 is fitted in the gap between two adjacent first guiding protrusions 31 due to the elastic force of the elastic member 4; when the driving shaft 5 is pressed, the cylindrical rib 221 tends to move along the axial direction of the cavity, that is, starts to move downward, at this time, it will contact the second descending slope 1321 and move between the first descending slope 311 and the second descending slope 1321, so that the rotating shaft 22 drives the water distribution member 2 to start to rotate, when the cylindrical rib 221 moves to the lower end of the second descending slope 1321, it has already contacted the first ascending slope 312, thus, after the pressure applied to the driving shaft 5 is removed, the elastic member 4 will push the water distribution member 2 (that is, the cylindrical rib 221) to ascend, so that the cylindrical rib 221 contacts the first ascending slope 312 and moves between the first ascending slope 312 and the second ascending slope 1322, continuing to drive the water distribution member 2 to rotate, until the cylindrical rib 221 moves to the gap of the next set of adjacent first guiding protrusions 31.

[0076] The water passing body 1 is provided with a water inlet channel 11 and a plurality of water distribution channels 12; the cavity is divided into a water passing cavity 14 and a mounting cavity 15 which are coaxially arranged by a partition layer 13; the water inlet channel 11 is communicated to the water passing cavity 14; a plurality of water distribution holes 131 are arranged on the circumference of the partition layer 13 close to the water passing cavity 14, and the water distribution holes 131 are communicated to the water distribution channels 12 one by one; a water distribution disc 21 is located in the water passing cavity 14, and a water passing gap 211 is arranged on the circumferential surface of the water distribution disc 21, the water passing gap 211 is opposite to a water distribution hole 131 with the rotation of the water distribution disc 21; the other end of a rotating shaft 22 penetrates through the partition layer 13 and extends into the mounting cavity 15; a fixed disc 3 is sealingly fitted with the mounting cavity 15, and first guiding protrusions 31 are arranged on the circumference of the fixed disc 3 close to the partition layer 13; second guiding protrusions 132 are arranged on the circumference of the partition layer 13 close to the fixed disc 3; an elastic member 4 is arranged between the water passing cavity 14 and the water distribution disc 21, so that the water distribution disc 21 is tightly attached to the partition layer 13.

[0077] The water inlet channel 11 and the water distribution channel 12 are respectively arranged at two ends of the water passing body 1 along the long axis direction of the water passing body 1, so as to be communicated and assembled with other components in the shower; correspondingly, the axial direction of the cavity is perpendicular to the long axis direction of the water passing body 1, thus the water inlet channel 11 is communicated to the side wall of the water passing cavity 14, the water distribution holes 131 are arranged along the axial direction of the cavity, and the water distribution channels 12 are communicated to the side of the water distribution holes 131.

[0078] The water passing body 1 comprises a water inlet half body 1a and a water distribution half body 1b; the water inlet channel 11 is arranged on the water inlet half body 1a, the cavity and the water distribution channel 12 are arranged on the water distribution half body 1b, and the water inlet half body 1a is tightly fitted at the opening of the water passing cavity 14. The water passing body 1 is divided into the water inlet half body 1a and the water distribution half body 1b, which are arranged separately, mainly for facilitating the molding of the corresponding channels, cavities and other structures, so that the molding of the parts becomes easy, the mold opening is facilitated, and the cost is reduced.

[0079] Further, the connection between the water inlet half body 1a and the water distribution half body 1b (mainly the position of the opening of the water passing cavity 14) is provided with a first sealing ring 6 to prevent water leakage and improve the sealing performance; the water inlet half body 1a and the water distribution half body 1b are locked by screws.

[0080] The first through hole 133 is provided on the partition layer 13 and is provided with a plurality of displacement notches 1331 matched with the cylindrical ribs 221. The first through hole 133 communicates the water passing cavity 14 with the mounting cavity 15, and the displacement notches 1331 on the side wall of the first through hole 133 facilitate the passing of the cylindrical ribs 221 on the rotating shaft 22 during assembly, so that the rotating shaft 22 can pass through the first through hole 133 and be installed in the mounting cavity 15 between the first guide protrusion 31 and the second guide protrusion 132.

[0081] The second through hole 32 is arranged on the fixed disc 3 and is movably fitted with the driving shaft 5; the end of the driving shaft 5 close to the water distribution member 2 protrudes radially and forms a limiting flange 51, and the limiting flange 51 is movably fitted on the inner side of the second through hole 32 to prevent the driving shaft 5 from being pushed out of the second through hole 32 by the water distribution member 2 under the action of the elastic member 4.

[0082] Further, the water path switching device further comprises a second sealing ring 7 and a fixed cover 8; the fixed disc 3 is provided with a mounting groove 33 at the outer end of the second through hole 32, the second sealing ring 7 is sleeved on the outer periphery of the driving shaft 5 and is fitted in the mounting groove 33; the fixed cover 8 is detachably fitted on the water passing body 1 and covers the surface of the fixed disc 3, and is used for limiting the second sealing ring 7. The second sealing ring 7 can prevent water leakage at the fitting position of the driving shaft 5 and the fixed disc 3, and improve the sealing performance of the product; the fixed cover 8 can prevent the second sealing ring 7 from being driven by the axial movement of the driving shaft 5 and separating from the mounting groove 33, and can also limit the fixed disc 3. In the embodiment, the second sealing ring 7 is a V-shaped or Y-shaped sealing ring, which can achieve better movable sealing effect.

[0083] Meanwhile, the peripheral surface of the fixed disc 3 is sealed and fitted with the mounting cavity 15 by the third sealing ring 9.

[0084] The waterway switching device further comprises a guide shaft 10; the driving shaft 5 is coaxially arranged with the rotating shaft 22 of the water distribution piece 2, the guide shaft 10 is arranged in the water passing cavity 14 and sequentially penetrates the water distribution piece 2 and the driving shaft 5; and the elastic member 4 is a spring sleeved on the guide shaft 10. By arranging the guide shaft 10, the coaxiality of the driving shaft 5 and the water distribution piece 2 can be ensured, the pressure borne by the driving shaft 5 when being pressed can be coaxially transmitted to the water distribution piece 2, and the water distribution piece 2 is driven to stably move along the axial direction of the accommodating cavity without yawing, so that the hand feeling when the user performs the pressing operation and the smoothness when the shower function is switched are ensured.

[0085] Further, the water distribution piece 2 is provided with a third through hole 23 penetrating the water distribution disc 21 and the rotating shaft 22, the driving shaft 5 is provided with a movable groove 52 at one end close to the water distribution piece 2, the upper end of the guide shaft 10 is movably arranged in the third through hole 23 and inserted into the movable groove 52; the lower end of the guide shaft 10 is formed with a step 101 protruding along the radial direction of the guide shaft 10; and the two ends of the elastic member 4 act on the third through hole 23 and the step 101 respectively.

[0086] Further, the inner wall of the water passing cavity 14 is provided with a shaft groove 16 for rotating cooperation of the lower end of the guide shaft 10. The shaft groove 16 is arranged to limit the position of the end of the guide shaft 10, so as to ensure the coaxiality of the guide shaft 10 and the accommodating cavity, and further ensure the coaxiality of the water distribution piece 2, the driving shaft 5 and the accommodating cavity.

[0087] The waterway switching device further comprises a sealing sleeve 20 sleeved on the surface of the water distribution disc 21, and the sealing sleeve 20 is made of elastic material, such as silica gel, rubber and the like. By arranging the sealing sleeve 20, the water distribution disc 21 can achieve better sealing of the water distribution hole 131 when being tightly attached to the partition layer 13.

[0088] The waterway switching device further comprises a button 30 for user operation; the middle section of the button 30 is pivotally connected to the water passing body 1, and one end of the button 30 is arranged opposite to the driving shaft 5. When the user presses the button 30, one end of the button 30 contacts the driving shaft 5 and exerts pressure on the driving shaft 5, so that the driving shaft 5 drives the water distribution piece 2 to axially move.

[0089] Further, the waterway switching device further comprises a positioning bead assembly 40 arranged at the other end of the button 30; a mounting hole 301 is arranged at the side of the other end of the button 30; the surface of the water passing body 1 is provided with a protrusion 17 arranged opposite to the other end of the button 30, and the side wall of the protrusion 17 is provided with a positioning hole 171; the positioning bead assembly 40 comprises a positioning spring 401 and a positioning bead 402 arranged in the mounting hole 301 in sequence, the positioning spring 401 drives the positioning bead 402 to tightly contact the side wall of the protrusion 17, and the positioning bead 402 is embedded in or separated from the positioning hole 171 along with the swing of the button 30. By arranging the positioning bead assembly 40, the button 30 can be limited, and the user has a "gear feeling" when operating the button 30, and the user experience is better.

[0090] Meanwhile, the surface of the water passing body 1 is provided with the shaft part 18 for the pivotal connection of the button 30.

[0091] In the embodiment, the water distribution channel 12 is provided with three corresponding water distribution holes 131, and the three water distribution holes 131 are arranged at equal angles around the center line of the partition layer 13, that is, one water distribution hole 131 is arranged in every 120°; meanwhile, the first guide protrusion 31 and the second guide protrusion 132 are also three; as shown in the reference Figures 7 to 9 The working principle of the waterway switching device is as follows:

[0092] ①The water passing body 1 is provided with three (or two) water distribution channels 12 communicated with the water sealing seat 70 of the shower, and the water distribution channels 12 are communicated with different function water distribution holes 131, the different water distribution holes 131 on the water passing body 1 are sealed by the water distribution piece 2, and the switching of different function water flowers is realized;

[0093] ②Referring to Figure 8 When the button 30 moves downward, the driving shaft 5 is pushed to move downward; since the driving shaft 5 is axially fixed in the first through hole 133 of the water passing body 1, only the relative up-down movement and rotation are allowed, and the side of the water distribution piece 2 has three (or two) cylindrical rib strips 221, in the process of moving downward, the lower half of the cylindrical rib strips 221 cooperates with the second guide protrusion 132 of the hole of the water passing body 1, so that the water distribution piece 2 rotates; when pressed to the limit position, the water distribution piece rotates by 60°; at this time, the switching operation is half completed, the water distribution disc 21 is away from the partition layer 13, and the shower is in the state that all the water outlets are watered;

[0094] When the button 30 is released, the water distribution member 2 moves upward due to the water pressure and the elastic member 4, the upper half of the three cylindrical ribs 221 cooperates with the first guide protrusion 31 of the fixed disc 3, and the water distribution member 2 is pushed to rotate, when the cylindrical rib 221 drops into the gap between the adjacent first guide protrusions 31, the water distribution disc 21 rotates 60° on the basis of ②, that is, the water distribution disc 21 rotates 120° in total after ② and ③, and the function switching is realized;

[0095] When the button 30 is pressed three times, the water distribution member 2 rotates 360°, and a function cycle is completed.

[0096] Reference Figure 10 and Figure 11 As shown in FIGS. 1-9, the application further discloses a shower, which comprises the water path switching device, a shower body 50, a water passing pipe 60, a water sealing base 70 and a water outlet assembly; the water path switching device, the water passing pipe 60, the water sealing base 70 and the water outlet assembly are all installed on the shower body 50, and the water path flows along the water passing pipe 60, the water path switching device, the water sealing base 70 and the water outlet assembly in sequence.

[0097] The following shows a specific embodiment of the shower.

[0098] The water sealing base 70 is provided with a plurality of function cavities 701 which are communicated with the water distribution channel 12, the inlet of the function cavity 701 is communicated with the water distribution channel 12, and the outlet of the function cavity 701 is communicated with the water outlet assembly.

[0099] In the embodiment, the water outlet assembly comprises a water outlet surface cover 80 and a bubbler 90; the circumferential surface of the water outlet surface cover 80 is provided with a spring sheet 801 which is opposite to the water path switching device. The spring sheet 801 can hide the button 30, the driving shaft 5 and other structures of the water path switching device, plays a protection role, and makes the appearance of the shower simple, and the user can directly press the spring sheet position to realize the function switching of the shower.

[0100] Through the above scheme, the waterway switching structure of the shower is integrated into a separate device, the structure design is compact, and the occupied space is small; the water passing body 1 is provided with a water inlet channel 11 and a water distribution channel 12, and a water distribution piece 2 is arranged between the water inlet channel 11 and the water distribution channel 12 to realize the communication and switching of the water inlet channel 11 and the water distribution channel 12; the first guide protrusion 31 and the second guide protrusion 132 between the fixed disc 3 and the partition layer 13 form a track groove for the movement and guidance of the cylindrical rib 221 of the water distribution piece 2; when the water distribution piece 2 is driven by the driven shaft 5 to move axially, the cylindrical rib 221 will move along the track groove to make the water distribution piece 2 rotate, so that the water passing gap 211 on the water distribution piece 2 is communicated with a water distribution hole 131 to achieve the purpose of waterway switching; for the user, only the driven shaft 5 needs to be pressed, and the waterway switching can be completed by pushing the water distribution piece 2 by the driven shaft 5; the force applied by the user is directly transmitted to the water distribution piece 2 for switching function through the driven shaft 5, and the traditional linkage structure is omitted, so that the operation is simple, more labor-saving and smooth.

[0101] The above embodiments and drawings are not limited to the product shape and style of the present application, and any appropriate changes or modifications made by those skilled in the art shall be considered as not departing from the scope of the present application.

Claims

1. A water path switching device, comprising a water passage body, a water distribution component, a fixed plate, an elastic element, and a drive shaft, wherein the water passage body is provided with a cavity, the water distribution component and the fixed plate are coaxially disposed within the cavity, the water distribution component includes a water distribution plate that can switch the water path of the water passage body when rotated; the drive shaft passes through the fixed plate and is used for user pressing operation to rotate the water distribution plate; the elastic element is used to drive the water distribution component to reset after being pressed; characterized in that: The water distribution component also includes a rotating shaft; the rotating shaft is coaxially arranged with the fixed plate, one end of which is coaxially connected to the water distribution plate, and the other end is in contact with the drive shaft; The fixed disk and the inner wall circumference of the cavity are respectively uniformly provided with a plurality of first guide protrusions and second guide protrusions, and the second guide protrusions and the first guide protrusions are arranged alternately vertically; a plurality of cylindrical ribs are uniformly provided on the circumferential surface of the other end of the rotating shaft, and the cylindrical ribs are located between the first guide protrusions and the second guide protrusions. The elastic element and the driving shaft exert force on the water distribution element, respectively, causing the cylindrical ribs to move along the first guide protrusion and the second guide protrusion, thereby causing the water distribution element to rotate and realize the water path switching of the water passage body. The lower side of the first guide protrusion includes a first descending slope and a first ascending slope, and the upper side of the second guide protrusion includes a second descending slope and a second ascending slope. The upper end of the second descending slope is axially opposite to the gap between two adjacent first guide protrusions, and the lower end of the second descending slope is axially opposite to the lower end of the first ascending slope. The water-passing body is provided with an inlet channel and several water-dividing channels; the cavity is divided by a partition into a coaxially arranged water-passing cavity and an installation cavity; the inlet channel is connected to the water-passing cavity; several water-dividing holes are provided on the circumference of the partition near the water-passing cavity, and the water-dividing holes are connected to the water-dividing channels one by one; the water-dividing plate is located in the water-passing cavity, and its circumference is provided with a water-passing notch, which aligns with one of the water-dividing holes as the water-dividing plate rotates; the other end of the rotating shaft passes through the partition and extends into the installation cavity; the fixed plate is sealed to the installation cavity, and the first guide protrusion is provided on the circumference of the fixed plate near the partition; the second guide protrusion is provided on the circumference of the partition near the fixed plate; the elastic element is provided between the water-passing cavity and the water-dividing plate to make the water-dividing plate fit tightly against the partition.

2. The waterway switching device according to claim 1, characterized in that: The water inlet channel and the water distribution channel are respectively arranged at both ends of the water passage body along the long axis direction; the axial direction of the cavity is perpendicular to the long axis direction of the water passage body, the water inlet channel is connected to the side wall of the water passage cavity, the water distribution hole is arranged along the axial direction of the cavity and the water distribution channel is connected to the side of the water distribution hole.

3. The waterway switching device according to claim 1, characterized in that: The water passage body includes an inlet half and a outlet half; the inlet channel is disposed on the inlet half, and the cavity and the outlet channel are both disposed on the outlet half, and the inlet half is sealed to fit at the opening of the water passage cavity.

4. The waterway switching device according to claim 1, characterized in that: The partition is provided with a first through hole for the rotating shaft to pass through, and the side wall of the first through hole is provided with a plurality of clearance notches that match the cylindrical ribs.

5. The waterway switching device according to claim 1, characterized in that: The fixed plate is provided with a second through hole for the drive shaft to move and engage; the end of the drive shaft near the water distribution component protrudes radially to form a limiting flange, which is movably engaged inside the second through hole.

6. The waterway switching device according to claim 5, characterized in that: The water circuit switching device also includes a second sealing ring and a fixing cover; the fixing plate has an installation groove at the outer end of the second through hole, the second sealing ring is sleeved on the outer periphery of the drive shaft and fits in the installation groove; the fixing cover is detachably fitted on the water passage body and covers the surface of the fixing plate.

7. The waterway switching device according to claim 1, characterized in that: The water path switching device also includes a guide shaft; the drive shaft is coaxially arranged with the rotating shaft of the water distribution component, the guide shaft is arranged in the water passage cavity and passes through the water distribution component and the drive shaft in sequence; the elastic element is a spring sleeved on the guide shaft.

8. The waterway switching device according to claim 7, characterized in that: The water distribution component is provided with a third through hole that passes through the water distribution plate and the rotating shaft. The drive shaft is provided with a movable groove at one end near the water distribution component. The upper end of the guide shaft is movably inserted through the third through hole and into the movable groove. The lower end of the guide shaft protrudes radially to form a step. The two ends of the elastic element act on the third through hole and the step, respectively.

9. The waterway switching device according to claim 8, characterized in that: The inner wall of the water passage cavity is provided with a shaft groove for the lower end of the guide shaft to rotate and engage.

10. The waterway switching device according to claim 1, characterized in that: The water circuit switching device also includes a sealing sleeve fitted on the surface of the water distribution plate, the sealing sleeve being made of elastic material.

11. The waterway switching device according to claim 1, characterized in that: The water path switching device also includes a button for user operation; the middle section of the button is pivotally connected to the water passage body, and one end of the button is positioned opposite to the drive shaft.

12. The waterway switching device according to claim 11, characterized in that: The water path switching device further includes a positioning bead assembly disposed at the other end of the button; a mounting hole is provided on the side of the other end of the button; a protrusion is provided on the surface of the water passage body opposite to the other end of the button, and a positioning hole is provided on the side wall of the protrusion; the positioning bead assembly includes a positioning spring and a positioning bead disposed sequentially in the mounting hole, the positioning spring drives the positioning bead to adhere to the side wall of the protrusion, and the positioning bead is inserted into or disengaged from the positioning hole as the button swings.

13. The waterway switching device according to claim 11, characterized in that: The surface of the water-passing body is provided with a shaft portion for pivotal engagement with the button.

14. A shower head, comprising a water path switching device according to any one of claims 1 to 13, characterized in that: It also includes a shower head body, a water pipe, a water seal seat, and a water outlet assembly; the water path switching device, the water pipe, the water seal seat, and the water outlet assembly are all installed on the shower head body, and the water path flows sequentially along the water pipe, the water path switching device, the water seal seat, and the water outlet assembly.

15. The shower head according to claim 14, characterized in that: The water sealing seat is provided with several functional cavities for communication with the water passage body. The inlet of each functional cavity is connected to different water passages of the water passage body, and the outlet of each functional cavity is connected to the water outlet assembly.

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