Multifunctional drawing head

Abstract

The utility model discloses a multifunctional drawing head which comprises a body provided with a water inlet channel and a first water distribution cavity, the body is further provided with a first inlet and a second inlet which can be communicated with the first water distribution cavity, a first switching mechanism is arranged in the first water distribution cavity, and the first switching mechanism can enable water to pass through the first inlet or the second inlet. The second inlet can be communicated with the flaky water outlet module; the water dispenser further comprises a second water distribution cavity capable of being communicated with the first inlet, the body is further provided with a third inlet and a fourth inlet which can be communicated with the second water distribution cavity, a second switching mechanism is arranged in the second water distribution cavity, the second switching mechanism can enable water to pass through the third inlet or the fourth inlet, the third inlet can be communicated with the water outlet hole, and the fourth inlet can be communicated with the water outlet hole. The fourth inlet can be communicated with the bubble water outlet module, and the drawing head has an excellent water spray effect and can be applied to various occasions.

Description

Technical Field

[0001] The utility model relates to a multifunctional pulling head. Background Art

[0002] The water splashes of the multifunctional pull-out heads on the market are basically a combination of shower water, bubbling water and other water splashes. However, the splash-proof effect of bubbling water is limited and there will be suction noise. At the same time, for consumers to simply clean some fruit plates or large areas, shower water has a strong impact and is easy to splash, while bubbling water has a small cleaning range and insufficient impact. Obviously, these two types of water splashes are not particularly suitable for consumers' usage scenarios. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a multifunctional pulling head.

[0004] The utility model is realized by the following technical solutions:

[0005] A multifunctional pull-out head comprises a body having a water inlet and a first water diversion chamber, the body further being provided with a first inlet and a second inlet which can be communicated with the first water diversion chamber, the first water diversion chamber being provided with a first switching mechanism, the first switching mechanism being able to allow water to flow through the first inlet or the second inlet, the second inlet being able to be communicated with a sheet water outlet module; and further comprising a second water diversion chamber which can be communicated with the first inlet, the body further being provided with a third inlet and a fourth inlet which can be communicated with the second water diversion chamber, the second water diversion chamber being provided with a second switching mechanism, the second switching mechanism being able to allow water to flow through the third inlet or the fourth inlet, the third inlet being able to be communicated with a water outlet hole, the fourth inlet being able to be connected with a bubble water outlet module.

[0006] In the embodiment of the utility model, it also includes a lower cover located at the water outlet end of the main body, the water outlet hole is arranged on the lower cover, and the sheet water outlet module and the bubble water outlet module can be connected to the main body through the lower cover.

[0007] In an embodiment of the utility model, the sheet-like water outlet module includes a hollow second shell, a second buffer zone connected to its water inlet end is arranged in the second shell, a connected water outlet and a chamber for rectification are also arranged in the second shell, the chamber is located between the second buffer zone and the water outlet, and the chamber is bowl-shaped; the edges of the water inlet end and / or the water outlet end of the water outlet are arc edges.

[0008] In an embodiment of the utility model, the cross-sections of the water inlet end and the water outlet end of the water outlet are elliptical, the size of the water outlet along the water outlet direction gradually increases, the maximum diameter of the chamber is larger than the major axis size of the water inlet end of the water outlet, the water inlet end of the water outlet is connected to the middle part of the chamber along the water flow direction, the chamber can be coaxially arranged with the water outlet, and a second buffer step is also arranged in the second shell, the second buffer step is located on the outer peripheral side of the opening of the water inlet end of the chamber, the cross-section of the second buffer zone is larger than the cross-section of the water inlet end of the chamber, and the second buffer zone can be coaxially arranged with the chamber.

[0009] In an embodiment of the utility model, a second rectifying piece is provided at the water inlet end of the second buffer zone, and the water flow entering the second shell can flow into the second buffer zone through the second rectifying piece. A second annular step surface is provided in the second shell located on the outer periphery above the second buffer zone, and the second rectifying piece is mounted on the second annular step surface. It also includes at least one second rectifying net, and the second rectifying net is arranged above the second rectifying piece. A second groove is provided on the inner peripheral wall of the second shell, and the second groove can be located above the second annular step surface. A second protrusion is provided on the outer periphery of the second rectifying net, and when the second rectifying net is installed in the second shell, the second protrusion can be matched and connected with the second groove.

[0010] In an embodiment of the utility model, the bubble water outlet module includes a hollow third shell, a third buffer zone is arranged in the third shell, a third buffer step is arranged in the third shell, the third buffer step is located on the peripheral side of the water outlet of the third shell, the cross-sectional area of ​​the third buffer zone is larger than the cross-sectional area of ​​the water outlet of the third shell; the diameter of the water outlet of the third shell gradually increases along the water outlet direction so that the water inlet end of the water outlet of the third shell forms a sharp corner, and the peripheral wall of the water outlet of the third shell forms an inclined surface; it also includes a water baffle for forming water splashes, and the water flow flowing out of the water outlet of the third shell can impact one end face of the water baffle.

[0011] In the embodiment of the utility model, one end face of the water retaining plate is a plane, the plane can be perpendicular to the impact direction of the water flow, and the outer peripheral edge of the plane is a right angle.

[0012] In an embodiment of the utility model, it also includes a third rectifying net located in a third shell body, the middle part of the third rectifying net is connected to one end of a connecting rod, the other end of the connecting rod can extend out of the third shell body, the other end of the connecting rod is matched and connected with one end face of a water baffle plate, a third annular step surface is arranged in the third shell body, the lower end face of the third rectifying net abuts against the third annular step surface, the third rectifying net is coaxially arranged with the connecting rod and the water baffle plate, a third rectifying sheet is arranged above the third rectifying net, another third rectifying net is arranged above the third rectifying sheet, a third groove is arranged on the inner peripheral wall of the third shell body, a third protrusion is arranged on the outer periphery of the third rectifying net, when the third rectifying net is installed in the third shell body, the third protrusion can be matched and connected with the third groove, and the major diameter of the water baffle plate is not greater than the minimum diameter of the water outlet of the third shell body.

[0013] In an embodiment of the utility model, the first switching mechanism includes a first bushing arranged in a first water diversion chamber, a first movable shaft is arranged in the first bushing, a first sealing ring is arranged on the first movable shaft, the first sealing ring can be matched and connected with the first inlet and the second inlet, a spring is also arranged between one end of the first movable shaft and the main body, the spring can keep the first sealing ring and the second inlet sealedly connected when there is no water flow, and the other end of the first movable shaft is connected to a button arranged on the main body.

[0014] In an embodiment of the utility model, the second switching mechanism includes a second bushing arranged in the second water-dividing chamber, a second movable shaft is arranged in the second bushing, a second sealing ring is arranged at one end of the second movable shaft, and the second sealing ring can be connected with the third inlet and the fourth inlet in cooperation; the other end of the second movable shaft can be connected with one end of a button, and the button is arranged on the main body, and the middle part of the button is hinged with the main body, and pressing one end or the other end of the button can control the movement of the second movable shaft in the second water-dividing chamber.

[0015] The utility model provides a multifunctional pull-out head with the following beneficial effects: it is suitable for cleaning a larger area, the water splashes softly, and the water splashes outward, while ensuring that no water splashes during flushing, giving users a good cleaning experience; it can also adapt to cleaning of a large area; at the same time, the water flow out of the water outlet of the third shell has an impact force between that of direct flushing water and that of bubbling water, which not only has a certain impact force, but also does not cause splashing of water. This water flow impacts the water retaining plate, causing a water jump phenomenon, thereby forming a good bubbling water shape, and at the same time will not splash a lot of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an exploded schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of state 1 of the utility model.

[0019] Figure 3 It is a schematic diagram of state 2 of the utility model.

[0020] Figure 4 This is a schematic diagram of the third state of the utility model. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the third state of the utility model. Figure 2 .

[0022] Figure 6 It is a schematic diagram of the second switching mechanism in the utility model.

[0023] Figure 7 It is a cross-sectional view of the bubble water outlet module in the utility model.

[0024] Figure 8 It is an exploded view of the bubble water outlet module in the utility model.

[0025] Fig. 9 It is a cross-sectional view of the sheet-shaped water outlet module in the utility model.

[0026] Fig.10 It is an exploded view of the sheet-shaped water outlet module in the utility model.

[0027] Fig.11 It is a schematic diagram of the second shell in the utility model Figure 1 .

[0028] Fig.12 It is a schematic diagram of the second shell in the utility model Figure 2 .

[0029] Fig.13 It is a bottom view of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] Referring to the drawings of the specification, a multifunctional pull-out head includes a main body 10 having a water inlet 11 and a first water diversion chamber 12. Water flows into the water inlet from the water inlet end of the main body and then flows into the first water diversion chamber. The main body is also provided with a first inlet 13 and a second inlet 14 which can be connected to the first water diversion chamber. A first switching mechanism 20 is arranged in the first water diversion chamber. The first switching mechanism can make water flow through the first inlet or the second inlet, that is, the first switching mechanism can control the flow direction of the water flow in the first water diversion chamber. The second inlet can be connected to the sheet water outlet module 200. In the default state, the first inlet is open and the second inlet is closed. Only when the first switching mechanism is started in the default state can the sheet water outlet module discharge water; it also includes a second water diversion chamber 15 which can be connected to the first inlet. In the default state, In this state, water flows from the first water diversion chamber to the second water diversion chamber. The body is also provided with a third inlet 16 and a fourth inlet 17 which can be communicated with the second water diversion chamber. A second switching mechanism 30 is provided in the second water diversion chamber. The second switching mechanism can make water flow through the third inlet or the fourth inlet, that is, the second switching mechanism can control the flow direction of the water in the second water diversion chamber. The third inlet can be connected to the water outlet hole 41, which can be a shower water outlet hole, which is the default water outlet splash. The fourth inlet can be connected to the bubble water outlet module 300. When water flows out of the water outlet hole, the second switching mechanism can be controlled to switch to the bubble water outlet module for water discharge. No matter whether water flows out of the water outlet hole or the bubble water outlet module, as long as the first switching mechanism is controlled, water can be directly switched to the sheet water outlet module for water discharge.

[0036] Furthermore, it also includes a lower cover 40 located at the water outlet end of the body, the water outlet hole is arranged on the lower cover, and the sheet water outlet module and the bubble water outlet module can be connected to the body through the lower cover.

[0037] Among them: the sheet water outlet module 200 includes a hollow second shell 210, and water can flow through the hollow area inside the second shell. A second buffer zone 211 that can be connected to its water inlet end is arranged in the second shell. A connected water outlet 212 and a chamber 213 for rectification are also arranged in the second shell. The chamber is located between the second buffer zone and the water outlet, and the chamber is bowl-shaped; the edge of the water inlet end and / or the water outlet end of the water outlet is an arc edge 217. In use, the water outlet is a flat mouth, and its size gradually increases and expands outward along the direction of water flow.

[0038] Preferably, the cross-sections of the water inlet and outlet ends of the water outlet are elliptical, and the size of the water outlet gradually increases along the water outlet direction. Referring to the figure in the specification, the dotted line is the water outlet end of the water outlet, and the arc edge allows the outermost water splashes of the sheet water to have more water flow ratio, while no sharp corners are generated to cause excessive squeezing of the outer water flow, thereby preventing the sheet water from spreading outward and splashing.

[0039] Furthermore, the maximum diameter of the chamber is larger than the long axis size of the water inlet end of the water outlet, and the long axis size of the water outlet channel is larger than the maximum diameter of the chamber, and even larger than the major diameter of the second buffer zone. The water inlet end of the water outlet is connected to the middle of the chamber along the water flow direction, and the chamber can be coaxially arranged with the water outlet. A second buffer step 214 is also arranged in the second shell, and the second buffer step is located on the outer peripheral side of the opening of the water inlet end of the chamber. The cross section of the second buffer zone is larger than the cross section of the water inlet end of the chamber, and the second buffer zone can be coaxially arranged with the chamber.

[0040] Furthermore, a second rectifying piece 220 is provided at the water inlet end of the second buffer zone, and the water flow entering the second housing can flow into the second buffer zone through the second rectifying piece. A second annular step surface 215 is provided in the second housing located on the outer periphery above the second buffer zone, and the second rectifying piece is mounted on the second annular step surface.

[0041] Preferably, at least one second rectifying net 230 is further included. The second rectifying net is arranged above the second rectifying sheet, and two of the second rectifying nets may be stacked.

[0042] Furthermore, the inner circumferential wall of the second shell is provided with a second groove 216, and the second groove can be located above the second annular step surface. The outer periphery of the second rectifying net is provided with a second protrusion 231. When the second rectifying net is installed in the second shell, the second protrusion can be matched and connected with the second groove, and at the same time, radial rotation of the rectifying net can be avoided.

[0043] The sheet water outlet module is more specific: the water flows into the second shell, passes through the second rectifying net and the second rectifying sheet, and then enters the second buffer zone, thereby forming a laminar flow state (making the water film of the sheet water longer) and then flows out from the outlet. The water flows from the rectifying cavity (that is, the chamber) and the outlet of the water outlet cavity to form sheet water; the second rectifying sheet is fixed on the second annular step surface, the second rectifying net has a plurality of water outlet holes, and the water outlet holes are arranged in a hexagonal shape; the second rectifying sheet is a stainless steel filter; the second shell has a second annular step The water outlet gradually spreads outward along the direction of water flow. The second annular step surface and the second buffer step are used to limit the height of the second rectifying sheet to form a second buffer zone. The cross-section of the rectifying cavity is a circular or elliptical regular geometric figure. The water outlet is a flat opening with arc edges at both ends of the water outlet (the arc edges allow the outermost water splashes of the sheet water to have more water flow ratio to avoid the sheet water spreading outward). The gradual outward diffusion of the water outlet can well avoid affecting the water flow at the water outlet.

[0044] Wherein: the bubble water outlet module 300 includes a hollow third shell 310, a third buffer zone 311 is arranged in the third shell, the third buffer zone can be connected with the water inlet end of the third shell, a third buffer step 312 is arranged in the third shell, the third buffer step is arranged at the bottom of the third buffer zone, the third buffer step is located on the periphery of the water outlet 313 of the third shell, the third classroom water outlet is coaxially arranged with the third buffer zone and the third buffer step, the cross-sectional area of ​​the third buffer zone is larger than the cross-sectional area of ​​the water outlet of the third shell; the diameter of the water outlet of the third shell gradually increases along the water outlet direction, so as to A sharp angle 314 is formed at the water inlet end of the water outlet of the third shell, and the sharp angle is an acute angle. The peripheral wall of the water outlet of the third shell is formed with an inclined surface 315. The sharp angle and the inclined surface can effectively avoid the sticky flow of water flow, so that the water flow will not adhere to the side wall of the water outlet, affecting the water outlet shape when the water is discharged, and the water path of the water outlet has a certain impact force; it also includes a water baffle 320 for forming water splashes. The water flow flowing out of the water outlet of the third shell can impact one end face of the water baffle, and the water flow with a certain impact force impacts one end face (upper end face) of the water baffle, so that a bubble water (also known as light bulb water, lampshade water) with a good shape can be formed.

[0045] Preferably, one end face of the water baffle is a plane 321, which can be perpendicular to the direction of water flow impact, and the outer peripheral edge 322 of the plane is a right angle, which can ensure that the water flow vertically impacts the plane and a uniform and good water jump phenomenon occurs, thereby forming an excellent bubble water shape.

[0046] Furthermore, it also includes a third rectifying net 330 located in the third shell, the middle part of the third rectifying net is connected to one end of the connecting rod 340, the other end of the connecting rod can extend out of the outside of the third shell, and the other end of the connecting rod is matched and connected with one end face of the water baffle, so that there is a certain distance between the plane and the water outlet of the third shell, which is convenient for forming an excellent bubble water shape. A third annular step surface 316 is arranged in the third shell, and the lower end face of the third rectifying net abuts on the third annular step surface, and the third rectifying net is coaxially arranged with the connecting rod and the water baffle. A third rectifying sheet 350 is arranged above the third rectifying net, and another third rectifying net is arranged above the third rectifying sheet, so that there are two third rectifying nets, and a third rectifying sheet is sandwiched between the two third rectifying nets.

[0047] Furthermore, a third groove 317 is provided on the inner wall of the third shell, and a third protrusion 331 is provided on the outer periphery of the third rectifying net. When the third rectifying net is installed in the third shell, the third protrusion can be connected with the third groove, so that the third rectifying net can be prevented from rotating. The major diameter of the water baffle is not greater than the minimum diameter of the water outlet of the third shell, so that an excellent bubble water form can be formed under the interaction of water flow.

[0048] The bubble water outlet module is more specific: the water flows through the third shell, the turbulent flow passes through the third rectifying net, the third rectifying sheet, and then passes through a third rectifying net, and then passes through the third buffer zone, thereby forming a laminar flow state, and then flows out from the water outlet of the third shell, the water flow hits the water baffle, and a water jump phenomenon occurs, thereby forming a bubble water shape; two third rectifying nets and third rectifying sheets are fixed on the third annular step surface, and a third buffer zone is formed between the third rectifying net located below and the third buffer step; the two third rectifying nets have multiple water outlet holes, and the water outlet holes are arranged in a hexagonal shape, with a third protrusion, which is combined with the third groove in the third shell; the rectifying sheet is a stainless steel filter mesh or a nylon filter mesh, and has multiple water outlet holes; the third shell has a third annular step surface, a third buffer step, a sharp corner and an inclined surface, and the third annular step surface and the third buffer step are used to limit the height of the third rectifying net located below to form a third buffer zone.

[0049] Furthermore, the first switching mechanism 20 includes a first bushing 21 arranged in the first water diversion chamber, a first movable shaft 22 is arranged in the first bushing, a first sealing ring 23 is arranged on the first movable shaft, the first sealing ring can be matched and connected with the first inlet and the second inlet, and a spring 24 is also arranged between one end of the first movable shaft and the main body, and the spring can keep the first sealing ring and the second inlet sealed when there is no water flow, so that the water can flow from the first water diversion chamber to the second water diversion chamber after turning off the water and turning on the water again, and the other end of the first movable shaft is connected to a button 51 arranged on the main body.

[0050] Furthermore, the second switching mechanism 30 includes a second bushing 31 disposed in the second water-dividing chamber, a second movable shaft 32 is disposed in the second bushing, a second sealing ring 33 is disposed at one end of the second movable shaft, and the second sealing ring can be connected with the third inlet and the fourth inlet. The other end of the second movable shaft can be connected with one end of a button 52, the button is disposed on the body, the middle part of the button is hinged with the body, and pressing one end or the other end of the button can control the movement of the second movable shaft in the second water-dividing chamber. The second switching mechanism can also have another spring, which can keep the second sealing ring and the fourth inlet in a sealed connection, so that water can be discharged from the water outlet each time the water is turned off and then turned on again. This is the most commonly used shower water outlet.

[0051] The utility model is more specific: State 1: water flows from the water inlet end of the body through the first water distribution chamber and the second water distribution chamber to the water outlet hole to discharge the shower water, refer to the attached figure of the specification Figure 2 State 2: Water flows from the water inlet of the body through the first water distribution chamber, press the button, the second sealing ring blocks the third inlet, opens the fourth inlet, and water flows through the first bushing to the bubble water outlet module. Refer to the attached figure of the instruction manual Figure 3 State 3: Water flows from the water inlet of the body through the first water distribution chamber. Press the button, the first sealing ring blocks the first inlet, the inlet is opened, and water flows through the second bushing to the sheet water outlet module. Refer to the attached figure of the instruction manual. Figure 4 , Figure 5 When the button is released, the first sealing ring and the first movable shaft are reset under the action of the spring, the second inlet is blocked, the first inlet is opened, and the water flows from the first water diversion chamber to the second water diversion chamber. The two switching mechanisms are basically the same, both having a bushing and a movable shaft, and each bushing is sealed with the inner circumferential wall of the corresponding water diversion chamber. The movable shaft and the bushing are also sealed, and the bushing is used to limit the movable shaft, and the inside of the bushing can be used for water flow; the movement of the movable shaft can open or close the corresponding inlet. The two water outlet modules are installed on the main body and fixed by the lower cover.

[0052] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A multifunctional pull-out head, comprising a body having a water inlet and a first water diversion cavity, characterized in that: The main body is also provided with a first inlet and a second inlet which can be communicated with the first water diversion chamber, a first switching mechanism is arranged in the first water diversion chamber, the first switching mechanism can make water pass through the first inlet or the second inlet, and the second inlet can be communicated with the sheet water outlet module; it also includes a second water diversion chamber which can be communicated with the first inlet, the main body is also provided with a third inlet and a fourth inlet which can be communicated with the second water diversion chamber, a second switching mechanism is arranged in the second water diversion chamber, the second switching mechanism can make water pass through the third inlet or the fourth inlet, the third inlet can be connected with the water outlet hole, and the fourth inlet can be connected with the bubble water outlet module.

2. A multifunctional pull-out head according to claim 1, characterized in that: It also includes a lower cover located at the water outlet end of the body, the water outlet hole is arranged on the lower cover, and the sheet water outlet module and the bubble water outlet module can be connected to the body through the lower cover.

3. A multifunctional pull-out head according to any one of claims 1 or 2, characterized in that: The sheet-shaped water outlet module includes a hollow second shell, a second buffer zone connected to its water inlet end is arranged in the second shell, a connected water outlet and a chamber for rectification are also arranged in the second shell, the chamber is located between the second buffer zone and the water outlet, and the chamber is bowl-shaped; the edges of the water inlet end and / or the water outlet end of the water outlet are arc edges.

4. A multifunctional pull-out head according to claim 3, characterized in that: The cross-sections of the water inlet end and the water outlet end of the water outlet are elliptical, the size of the water outlet along the water outlet direction gradually increases, the maximum diameter of the chamber is larger than the major axis size of the water inlet end of the water outlet, the water inlet end of the water outlet is connected to the middle part of the chamber along the water flow direction, the chamber can be coaxially arranged with the water outlet, and a second buffer step is also arranged in the second shell, the second buffer step is located on the outer peripheral side of the opening of the water inlet end of the chamber, the cross-section of the second buffer zone is larger than the cross-section of the water inlet end of the chamber, and the second buffer zone can be coaxially arranged with the chamber.

5. A multifunctional pull-out head according to claim 4, characterized in that: A second rectifying piece is provided at the water inlet end of the second buffer zone, and the water flow entering the second shell can flow into the second buffer zone through the second rectifying piece. A second annular step surface is provided in the second shell located on the outer periphery above the second buffer zone, and the second rectifying piece is mounted on the second annular step surface. The second rectifying piece also includes at least one second rectifying net, which is arranged above the second rectifying piece. A second groove is provided on the inner peripheral wall of the second shell, and the second groove can be located above the second annular step surface. A second protrusion is provided on the outer periphery of the second rectifying net, and when the second rectifying net is installed in the second shell, the second protrusion can be matched and connected with the second groove.

6. A multifunctional pull-out head according to any one of claims 1, 2, 4 or 5, characterized in that: The bubble water outlet module includes a hollow third shell, a third buffer zone is arranged in the third shell, a third buffer step is arranged in the third shell, the third buffer step is located on the peripheral side of the water outlet of the third shell, the cross-sectional area of ​​the third buffer zone is larger than the cross-sectional area of ​​the water outlet of the third shell; the diameter of the water outlet of the third shell gradually increases along the water outlet direction so that the water inlet end of the water outlet of the third shell forms a sharp corner, and the peripheral wall of the water outlet of the third shell forms an inclined surface; and it also includes a water baffle plate for forming water splashes, and the water flow flowing out of the water outlet of the third shell can impact one end surface of the water baffle plate.

7. A multifunctional pull-out head according to claim 6, characterized in that: One end face of the water baffle is a plane, the plane can be perpendicular to the impact direction of the water flow, and the outer peripheral edge of the plane is a right angle.

8. A multifunctional pull-out head according to claim 7, characterized in that: The water-repellent composite material is a composite material of a plurality of water-repellent composite materials, and a plurality of water-repellent composite materials are provided in the plurality of water-repellent composite materials. The plurality of water-repellent composite materials are provided with a plurality of water-repellent composite materials. The plurality of water-repellent composite materials are provided with a plurality of water-repellent composite materials. The plurality of water-repellent composite materials are provided with a plurality of water-repellent composite materials.

9. A multifunctional pull-out head according to any one of claims 1, 2, 4, 5, 7 or 8, characterized in that: The first switching mechanism includes a first bushing arranged in a first water diversion chamber, a first movable shaft is arranged in the first bushing, a first sealing ring is arranged on the first movable shaft, the first sealing ring can be matched and connected with the first inlet and the second inlet, a spring is also arranged between one end of the first movable shaft and the main body, the spring can keep the first sealing ring and the second inlet sealed when there is no water flow, and the other end of the first movable shaft is connected to a button arranged on the main body.

10. A multifunctional pull-out head according to claim 9, characterized in that: The second switching mechanism includes a second bushing arranged in the second water-dividing chamber, a second movable shaft is arranged in the second bushing, a second sealing ring is arranged at one end of the second movable shaft, and the second sealing ring can be connected with the third inlet and the fourth inlet; the other end of the second movable shaft can be connected with one end of a button, and the button is arranged on the main body, and the middle part of the button is hinged with the main body, and pressing one end or the other end of the button can control the movement of the second movable shaft in the second water-dividing chamber.

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