A shower

Abstract

The present invention discloses a shower, including a body, a valve core and a handle, wherein the valve core is installed on the body and is provided with a plurality of valve core water holes, the handle is fixed to the valve stem of the valve core, and the body is provided with a body water hole for correspondingly communicating with the valve core water hole; it also includes: a valve seat, which is located between the body and the valve core and circumferentially matched with the body; the valve seat is provided with a plurality of mutually independent water passages, and each water passage is always connected with a corresponding body water passage hole; the valve core rotates between a plurality of positions relative to the body, and at any position, the valve core water passage is connected with the corresponding body water passage through the water passage. A shower adopting the above structure can match handles with a variety of rotation ranges, without the need to redesign and produce the shower, which effectively reduces the manufacturing cost.

Description

Technical Field

[0001] The invention relates to the technical field of showers, and in particular to a shower. Background Art

[0002] Existing showers mainly include a main body, a valve core and a handle, wherein a plurality of water passages are arranged in the main body for realizing the inflow and outflow of water. The valve core can be divided into a thermostatic valve and a switching valve. The thermostatic valve is used to control the water outlet temperature, and the switching valve is used to switch the water outlet waterway. The handle is generally connected to the valve stem of the switching valve or the thermostatic valve to operate the valve core. Generally speaking, in order to facilitate the adjustment of water temperature or switching of waterways, thermostatic valves or switching valves are generally controlled by rotation. This control method can provide more gears than the push-type valve core, and the water outlet of this rotating valve core is generally arranged at the bottom of the valve core. When the valve core is installed on the main body of the shower, the water outlet at the bottom of the valve core needs to be sealed and connected with the corresponding water inlet on the main body, which means that when the position of the water inlet on the main body is determined, the installation position of the valve core is also determined. At the same time, the rotation of the rotating valve core is generally fixed, and the positions of the starting point and the end point have been pre-set. When the hand wheel is used for adjustment and control, it can be unaffected by the external environment (such as the wall). However, when the handle is used for control, due to the long handle, the rotation range of the handle may need to be adjusted according to the actual situation, for example, the handle that originally rotates within the vertical sector range is adjusted to rotate within the horizontal sector range, and this requires the installation position of the valve core to be adjusted synchronously, and the position of the water inlet on the main body needs to be adjusted. This adjustment requires the redesign and production of the main body molding mold, which obviously greatly increases the manufacturing cost. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a showerhead that can match handles with various rotation ranges without the need to redesign and produce the showerhead, thereby effectively reducing manufacturing costs.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A shower, comprising a body, a valve core and a handle, wherein the valve core is mounted on the body and is provided with a plurality of valve core water holes, the handle is fixedly connected to the valve stem of the valve core, and the body is provided with a body water hole for correspondingly communicating with the valve core water hole; further comprising: a valve seat, which is located between the body and the valve core and circumferentially matched with the body; the valve seat is provided with a plurality of mutually independent water passages, and each of the water passages is always communicated with a corresponding body water hole; the valve core rotates between a plurality of positions relative to the body, and at any position, the valve core water hole is communicated with the corresponding body water hole through the water passage.

[0006] Furthermore, the valve seat is provided with a plurality of concentric circular or annular through grooves penetrating two opposite walls of the valve seat to form the water passage; each of the water through holes of the main body is sealedly connected to a through groove; each of the water through holes of the valve core is within the communication range of the corresponding through groove when the valve core rotates to any position relative to the main body.

[0007] Furthermore, the valve seat cooperates with the body along the axial direction to form a plurality of water flow chambers, and each of the water flow chambers is connected to a water flow channel; the body water flow hole is arranged along the axial direction of the body; the range of the water flow chamber at least corresponds to the rotation range of the valve core, and when the valve seat rotates within this range, each of the body water flow hole remains connected to a corresponding water flow chamber.

[0008] Furthermore, the valve seat includes a plurality of water sealing plates and water passing pipes; the water sealing plates are arranged in sequence along the axial direction of the valve seat, and are provided with water sealing plate water passing holes penetrating along the axial direction of the valve seat, and their circumferences are sealed with the body to form the water passing cavity; the water passing pipe connects the water sealing plate water passing holes of two adjacent water sealing plates to form the water passing channel.

[0009] Furthermore, the diameters of the plurality of water sealing plates decrease sequentially from the outside to the inside along the axial direction of the valve seat.

[0010] Furthermore, the valve seat comprises a first water sealing plate, a second water sealing plate and a third water sealing plate; the first water sealing plate and the second water sealing plate cooperate with the body to form a first water passage cavity, the second water sealing plate and the third water sealing plate cooperate with the body to form a second water passage cavity, and the third water sealing plate cooperates with the body to form a third water passage cavity;

[0011] The first water sealing plate is provided with three first water sealing plate water passing holes, one end of which is connected to the first water passing cavity and the other end is connected to a valve core water passing hole, and the other two first water sealing plate water passing holes are connected to the first water passing pipe and the second water passing pipe respectively;

[0012] The second water sealing plate is provided with two second water sealing plate water holes, one end of which is connected to the second water passage cavity and the other end is connected to the first water passage pipe, and the other end of which is connected to the second water passage pipe and the other end is connected to the third water passage pipe;

[0013] A third water sealing plate water passing hole is provided on the third water sealing plate, one end of the third water sealing plate water passing hole is connected to the third water passing cavity, and the other end is connected to the third water passing pipe.

[0014] Furthermore, a plurality of positioning grooves are provided on the body along the circumferential direction; a positioning protrusion is provided on the valve seat; and the positioning protrusion is configured to achieve position adjustment of the valve seat by plugging and cooperating with the positioning groove.

[0015] Furthermore, there are three positioning grooves, and at least one of the positioning grooves has a phase angle difference of 90° with the other two positioning grooves.

[0016] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A valve seat separated from the body and the valve core is provided, and the valve seat is circumferentially matched with the body, so that the valve seat can rotate relative to the body when needed, and the valve core can also rotate relative to the body. Depending on the shape of the water passage provided on the valve seat, when the valve core rotates, the valve seat can rotate with the valve core, or it can stop at a fixed position. It is only necessary to meet the requirement that the valve seat always remains connected with the water passage hole of the body. When the valve seat remains connected with the water passage hole of the body, the valve core remains connected with the water passage of the valve seat when it rotates to any position, so that the water passage hole of the valve core can be connected with the corresponding water passage hole of the body, and the valve core can be rotated at will without affecting the water flow of the shower. When the handle position needs to be adjusted, there is no need to redesign the body structure, and the valve core can be directly rotated to the appropriate position, and the handle can be fixed to the valve stem of the valve core.

[0018] 2. Concentric circular or annular through grooves are provided on the valve seat to form a water passage, and the water through hole of the main body is connected to the water passage. Since the water passage is a groove-like structure with a length, when the position of the valve core water through hole on the valve core changes, as long as the valve core water through hole is within the range of the through groove, it can maintain communication with the water passage. In this way, the valve core can be rotated to any position within the range of the through groove while still maintaining communication with the corresponding water through hole of the main body.

[0019] 3. The valve seat can also cooperate with the body to form a water flow cavity arranged along the axial direction. Each water flow channel is independently connected to a water flow cavity. At the same time, each water flow cavity is connected to a water flow hole of the body, and the coverage range of the water flow cavity at least corresponds to the rotation range of the valve core. In this way, when the valve core rotates, the valve seat can also rotate with it, and at the same time be connected to the water flow hole of the body through the water flow cavity.

[0020] 4. The valve seat is provided with a water sealing plate and a water passing pipe. The water sealing plate is used to cooperate with the body to form a water passing cavity, and the water passing pipe is used to form an independent water passing channel.

[0021] 5. From the axial direction of the valve seat, the diameter of the water sealing plate decreases from the outside to the inside, which allows the valve seat to be better plugged into the body and facilitates confirmation of the correct installation direction of the valve seat.

[0022] 6. Three water sealing plates and three water flow pipes are provided. The three water sealing plates cooperate with the main body to form three independent water flow chambers. The three water flow pipes respectively form two water flow channels. The water flow hole of the first water sealing plate on the first water sealing plate forms a water flow channel. Thus, a total of three water flow channels are formed, and each water flow channel is independently connected to a corresponding water flow chamber.

[0023] 7. A positioning groove is provided on the body, and a positioning protrusion is provided on the valve seat. By making the positioning protrusion engage with the positioning groove, the position of the valve seat can be determined without deviation.

[0024] 8. Three positioning slots are set to meet the needs in most cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A partial structural cross-sectional view of Example 1 of a shower provided by the present invention;

[0027] Figure 2 for Figure 1 Structure diagram of the middle valve seat Figure 1 ;

[0028] Figure 3 for Figure 1 Structure diagram of the middle valve seat Figure 2 ;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure of the body;

[0030] Figure 5 A schematic diagram of the structure of a valve seat used in Embodiment 2 of a shower provided by the present invention;

[0031] Figure 6 This is a schematic diagram of the state of the handle of Embodiment 1 or 2 of a shower provided by the present invention being in different installation positions.

[0032] Description of main reference numerals:

[0033] 10. Main body; 11. First water passage cavity; 12. Second water passage cavity; 13. Third water passage cavity; 141. First positioning groove; 142. Second positioning groove; 143. Third positioning groove; 20. Valve core; 30. Handle; 40. Valve seat; 41. First water sealing plate; 411. First water passage pipe; 412. Second water passage pipe; 413. First side wall; 414. Second side wall; 42. Second water sealing plate; 421. Third water passage pipe; 43. Third water sealing plate; 44. Positioning protrusion; 451. First water passage hole of first water sealing plate; 452. Second water passage hole of first water sealing plate; 453. Third water passage hole of first water sealing plate; 461. First water passage hole of second water sealing plate; 471. Water passage hole of third water sealing plate; 481. First through groove; 482. Second through groove; 483. Third through groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0037] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0038] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0039] A shower device provided by the present invention includes Embodiment 1 and Embodiment 2 in this specification. Embodiment 1 will be explained below.

[0040] See also Figure 1 , Figure 1 A partial structural schematic diagram of embodiment 1 of a shower provided by the present invention is shown. The shower mainly comprises a body 10 , a valve core 20 , a handle 30 and a valve seat 40 .

[0041] In this embodiment, the shower includes a thermostatic valve core part and a water-dividing valve core part. The thermostatic valve core part is provided with a thermostatic valve core, which is connected to two water paths of hot water and cold water supplied from the outside, and mixes water through the thermostatic valve core to form warm water with a suitable temperature, and the warm water then enters the water-dividing valve core part. The water-dividing valve core part is provided with three water paths, namely a warm water inlet path connected to the thermostatic valve core, and a shower outlet path and a top spray outlet path used in the shower head or top spray.

[0042] The body 10 is the main part of the shower, which is provided with a plurality of water passages therein and is connected to an external water supply pipe or a water outlet pipe through an interface. A thermostatic valve core is mounted at one end of the body 10, and a water diversion valve core is mounted at the other end of the body 10. Between the thermostatic valve core and the water diversion valve core, the body 10 is provided with a water passage connecting the two valve cores, and the water passage is connected to warm water.

[0043] Whether in the thermostatic valve core or the water diversion valve core, the body 10 is provided with three water paths. For the thermostatic valve core, the three water paths on the body 10 are the hot water supply path, the cold water supply path and the warm water outlet path; for the water diversion valve core, the three water paths on the body 10 are the warm water inlet path, the shower outlet path and the top spray outlet path. Therefore, if Figure 1 As shown, in this partial structure, the main body 10 forms an inwardly recessed chamber in the axial direction, and three main body water holes are arranged on the side wall of the chamber from the outside to the inside. These three main body water holes can be used for water inlet or outlet.

[0044] Furthermore, the chamber on the main body 10 is arranged as a two-level stepped structure in cross section, and the inner diameter decreases from the outside to the inside.

[0045] In addition, if Figure 4As shown, the body 10 is also provided with a positioning groove. In this embodiment, there are three positioning grooves, namely, a first positioning groove 141, a second positioning groove 142 and a third positioning groove 143, and at least one of the positioning grooves has a phase angle difference of 90° with the other two positioning grooves. In this embodiment, the phase angle difference between the second positioning groove 142 and the first positioning groove 141 and the third positioning groove 143 is 90°, and, further, Figure 4 The horizontal direction shown is the horizontal axis of the rectangular coordinate system, the first positioning groove 141 is at the 90° position, the second positioning groove 142 is at the 180° position, and the third positioning groove 143 is at the 270° position.

[0046] The valve core 20 can be a thermostatic valve core or a water-dividing valve core, on which a valve stem and three valve core water holes are provided. The valve core water holes are used to connect to the external water supply and form corresponding water outlets after being controlled by the valve core 20; the valve stem is used to control the water inlet and outlet of the valve core 20, and it extends to the outside relative to the valve core 20. An inwardly recessed valve stem mounting hole is provided at the end position of the valve stem, and a circle of outwardly extending flanges is provided near the end position of the valve stem.

[0047] The handle 30 is a long handle structure, and a protrusion is arranged near one end thereof, and an inwardly recessed mounting hole is formed in the protrusion.

[0048] The structure of the valve seat 40 is as follows: Figure 1 , Figure 2 and Figure 3 As shown, a plurality of independent water passages are provided on it. Specifically, the valve seat 40 includes a plurality of water sealing plates and water passage pipes. The water sealing plates are arranged in sequence along the axial direction of the valve seat. A water sealing plate water passage hole penetrating along the axial direction of the valve seat is provided on it. The water passage pipe connects two adjacent water sealing plate water passage holes to form a water passage. In addition, the diameters of the plurality of water sealing plates decrease in sequence from the outside to the inside along the axial direction of the valve seat.

[0049] More specifically, in this embodiment, the valve seat 40 includes a first water sealing plate 41, a second water sealing plate 42, and a third water sealing plate 43, as well as a first water pipe 411, a second water pipe 412, and a third water pipe 421, and a positioning protrusion 44. Of course, the valve seat 40 can be integrally formed of plastic, and its division into the above structure does not mean that the valve seat 40 can only be a split structure, but is only for the convenience of expression and a clear decomposition of the structure of the valve seat 40 for the understanding of those skilled in the art.

[0050] The first water sealing plate 41 is provided with three first water sealing plate water holes, namely, the first water sealing plate first water hole 451, the first water sealing plate second water hole 452, and the first water sealing plate third water hole 453. Each of the first water sealing plate water holes penetrates the first water sealing plate 41 along the axial direction of the first water sealing plate 41. For the first water sealing plate first water hole 451, it itself forms a water passage. The first side wall 413 is formed on the outward side of the first water sealing plate 41, and the second side wall 414 is formed on the inward side. The periphery of the first water sealing plate 41 is provided with a groove for installing a sealing ring.

[0051] The second water sealing plate 42 is provided with two second water sealing plate water holes, namely the second water sealing plate first water hole 461 and the second water sealing plate second water hole, each of which penetrates the second water sealing plate along the axial direction of the second water sealing plate 42. The periphery of the second water sealing plate 42 is provided with a groove for installing a sealing ring.

[0052] The third water sealing plate 43 is provided with a third water sealing plate water through hole 471, which penetrates the third water sealing plate 43 along the axial direction of the third water sealing plate 43. The third water sealing plate 43 is provided with a groove for installing a sealing ring at its periphery.

[0053] The first water passing pipe 411 is disposed between the first water sealing plate 41 and the second water sealing plate 42 , and two ends thereof are connected to the third water passing hole 453 of the first water sealing plate and the first water passing hole 461 of the second water sealing plate respectively.

[0054] The second water passing pipe 412 is disposed between the first water sealing plate 41 and the second water sealing plate 42, and two ends thereof are connected to the second water passing hole 452 of the first water sealing plate and the second water passing hole of the second water sealing plate respectively.

[0055] The third water passing pipe 421 is disposed between the second water sealing plate 42 and the third water sealing plate 43 , and its two ends are respectively connected to the second water passing hole of the second water sealing plate and the water passing hole 471 of the third water sealing plate.

[0056] The positioning protrusion 44 is disposed on the second side wall 414 of the first water sealing plate, and is a cylindrical structure protruding relative to the plane of the second side wall 414 .

[0057] In addition, the valve seat 40 is located between the main body 10 and the valve core 20, and is circumferentially matched with the main body. The water passage on the valve seat 40 is always connected to a corresponding water passage hole of the main body; when the valve core 20 rotates between several positions relative to the main body, at any position, the water passage hole of the valve core is connected to the corresponding water passage hole of the main body through the water passage on the valve seat 40.

[0058] Specifically, the valve seat 40 cooperates with the main body 10 along the axial direction to form a plurality of water flow chambers, each of which is connected to a water flow channel. The main body water flow hole is arranged along the axial direction of the main body 10. The range of the water flow chamber at least corresponds to the rotation range of the valve core 20. When the valve seat 40 rotates within this range, each main body water flow hole remains connected to a corresponding water flow chamber.

[0059] The water passage cavity is formed by the sealing cooperation between the water sealing plate on the valve seat 40 and the body 10. Figure 1 As shown, the first water sealing plate 41 and the second water sealing plate 42 cooperate with the body 10 to form a first water passage cavity 11, the second water sealing plate 42 and the third water sealing plate 43 cooperate with the body 10 to form a second water passage cavity 12, and the third water sealing plate 43 cooperates with the body 10 to form a third water passage cavity 13.

[0060] Specifically, the periphery of the first water sealing plate 41 is sealed with the inner wall of the chamber of the body 10, and the periphery of the second water sealing plate 42 is sealed with the inner wall of the chamber of the body 10, and the body 10 is provided with a body water passage hole between the two. When the first water passage hole 451 of the first water sealing plate on the valve seat 40 is connected with a valve core water passage hole on the valve core 20, the first water passage chamber 11 can also be connected with the valve core 20. Similarly, the second water sealing plate 42 and the third water sealing plate 43 also form the second water passage chamber 12 through the sealing cooperation of the periphery with the body 10. After the third water passage hole 453 of the first water sealing plate is connected with a valve core water passage hole on the valve core 20, the second water passage chamber 12 can also be connected with the valve core 20 through the first water passage pipe 411 and the first water passage hole 461 of the second water sealing plate. Similarly, the third water sealing plate 43 directly forms the third water flow chamber 13 by sealing with the main body 10. After the second water flow hole 452 of the first water sealing plate is connected to a valve core water flow hole on the valve core 20, the third water flow chamber 13 can be connected to the valve core 20 through the second water flow pipe 412, the third water flow pipe 421 and the third water sealing plate water flow hole 471.

[0061] Furthermore, due to the existence of the water passage chamber, when the valve core 20 rotates and the valve seat 40 rotates therewith, the main body water passage hole can still be connected with the valve core water passage hole on the valve core 20 through the water passage chamber, thereby allowing the valve core 20 to rotate within the connection range between the water passage chamber and the main body water passage hole.

[0062] In this embodiment, the valve core 20 is configured to switch between three positions, which correspond to the three positioning grooves provided on the body 10. The positioning protrusion 44 on the valve seat 40 corresponds to the positioning groove on the body 10, and is configured to achieve position adjustment of the valve seat 40 by plugging and matching with the positioning groove. Specifically, the shape of the positioning protrusion 44 matches the shape of the positioning groove, and it can switch between the first positioning groove 141, the second positioning groove 142, and the third positioning groove 143, and fix its position by matching with the shape of the positioning groove.

[0063] During assembly, the valve seat 40 is installed in the cavity of the body 10 , and then the valve core 20 is installed, and then the handle 30 is fixed to the valve stem of the valve core 20 .

[0064] When using, Figure 6 As shown, if the direction of the handle 30 needs to be changed, the position of the valve seat 40 can be adjusted before assembly, and then the position of the valve core 20 can be adjusted, so that the rotation range of the valve stem can be changed, and the direction of the handle 30 can also be changed.

[0065] In addition, the present invention further provides Example 2, which is different from Example 1 in that the structures of the valve seat 40 and the body 10 are different.

[0066] In Example 2, the valve seat 40 is a plate-like structure, on which are provided a plurality of concentric circular or annular through grooves that pass through two opposite walls of the valve seat 40 to form a water passage, and each water through hole of the main body is sealed and connected to a through groove, and each water through hole of the valve core is within the communication range of the corresponding through groove when the valve core 20 rotates to any position relative to the main body 10.

[0067] Specifically, Figure 5 As shown, three through grooves are provided on the valve seat 40, namely the first through groove 481, the second through groove 482 and the third through groove 483. The first through groove 481 is a circular hole located in the center of the valve seat 40, the second through groove 482 is an incomplete circular ring structure concentric with the first through groove 481, and the third through groove 483 is an incomplete circular ring structure concentric with the first through groove 481 and located on the outside of the second through groove 482.

[0068] By arranging a sealing gasket between the valve seat 40 and the main body 10 and the valve core 20, the through groove on the valve seat 40 can be connected with the main body water hole and the valve core water hole independently of each other, and due to the structure of the valve seat 40 itself, when the valve core 20 rotates, as long as the corresponding valve core water hole is within the range of the corresponding through groove, this valve core water hole can maintain communication with the corresponding main body water hole.

[0069] A shower head provided by the present invention, by setting a valve seat 40 separated from a body 10 and a valve core 20, utilizes the water passageway on the valve seat to ensure that the water passageway of the body can always maintain communication with the water passageway of the valve core when the position of the valve core 20 changes, thereby solving the problem that the rotation range of the handle 30 cannot be changed, so that the shower head can be matched with handles of various rotation ranges without the need to redesign and produce the shower head, thereby effectively reducing the manufacturing cost.

[0070] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A shower, comprising a body, a valve core and a handle, wherein the valve core is mounted on the body and is provided with a plurality of valve core water holes, the handle is fixed to a valve stem of the valve core, and the body is provided with body water holes for correspondingly communicating with the valve core water holes; It is characterized in that Also includes: The valve seat is located between the body and the valve core and is circumferentially matched with the body; the valve seat is provided with a plurality of mutually independent water passages, and each of the water passages is always connected to a corresponding water passage hole of the body; The valve core rotates relative to the body between several positions, and at any position, the water through hole of the valve core is communicated with the corresponding water through hole of the body through the water through channel.

2. A shower as claimed in claim 1, characterized in that: The valve seat is provided with a plurality of concentric circular or annular through grooves penetrating two opposite walls of the valve seat to form the water passage; each of the water holes of the body is sealedly connected to one of the through grooves; each of the water holes of the valve core is within the communication range of the corresponding through groove when the valve core rotates to any position relative to the body.

3. A shower device as claimed in claim 1, characterized in that: The valve seat cooperates with the body along the axial direction to form a plurality of water passage cavities, and each of the water passage cavities is connected to a water passage; the body water passage hole is arranged along the axial direction of the body; the range of the water passage cavity at least corresponds to the rotation range of the valve core, and when the valve seat rotates within this range, each of the body water passage hole remains connected to a corresponding water passage cavity.

4. A shower device as claimed in claim 3, characterized in that: The valve seat comprises a plurality of water sealing plates and water passing pipes; the water sealing plates are arranged in sequence along the axial direction of the valve seat, and are provided with water sealing plate water passing holes penetrating along the axial direction of the valve seat, and their circumferences are sealed with the body to form the water passing cavity; the water passing pipe connects the water sealing plate water passing holes of two adjacent water sealing plates to form the water passing channel.

5. A shower device as claimed in claim 4, characterized in that: The diameters of the plurality of water sealing plates decrease sequentially from outside to inside along the axial direction of the valve seat.

6. A shower device according to any one of claims 4 or 5, characterized in that: The valve seat comprises a first water sealing plate, a second water sealing plate and a third water sealing plate; the first water sealing plate and the second water sealing plate cooperate with the body to form a first water passage cavity, the second water sealing plate and the third water sealing plate cooperate with the body to form a second water passage cavity, and the third water sealing plate cooperates with the body to form a third water passage cavity; The first water sealing plate is provided with three first water sealing plate water passing holes, one end of which is connected to the first water passing cavity and the other end is connected to a valve core water passing hole, and the other two first water sealing plate water passing holes are connected to the first water passing pipe and the second water passing pipe respectively; The second water sealing plate is provided with two second water sealing plate water holes, one end of which is connected to the second water passage cavity and the other end is connected to the first water passage pipe, and the other end of which is connected to the second water passage pipe and the other end is connected to the third water passage pipe; A third water sealing plate water passing hole is provided on the third water sealing plate, one end of the third water sealing plate water passing hole is connected to the third water passing cavity, and the other end is connected to the third water passing pipe.

7. A shower device as claimed in claim 6, characterized in that: A plurality of positioning grooves are arranged on the body along the circumferential direction; a positioning protrusion is arranged on the valve seat; and the positioning protrusion is configured to achieve position adjustment of the valve seat by plugging and cooperating with the positioning groove.

8. A shower device as claimed in claim 7, characterized in that: There are three positioning grooves, and at least one of the positioning grooves has a phase angle difference of 90° with the other two positioning grooves.

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