WO2023098121A1 - 一种出水切换机构 - Google Patents

一种出水切换机构 Download PDF

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Publication number
WO2023098121A1
WO2023098121A1 PCT/CN2022/109183 CN2022109183W WO2023098121A1 WO 2023098121 A1 WO2023098121 A1 WO 2023098121A1 CN 2022109183 W CN2022109183 W CN 2022109183W WO 2023098121 A1 WO2023098121 A1 WO 2023098121A1
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WIPO (PCT)
Prior art keywords
water outlet
button
seat
switching mechanism
housing
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PCT/CN2022/109183
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English (en)
French (fr)
Inventor
谢炜
黄辉
蔡涛
许文聪
沈灯辉
邹绍福
Original Assignee
箭牌家居集团股份有限公司
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Application filed by 箭牌家居集团股份有限公司 filed Critical 箭牌家居集团股份有限公司
Publication of WO2023098121A1 publication Critical patent/WO2023098121A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers

Definitions

  • the invention relates to the technical field of water outlet switching, in particular to a water outlet switching mechanism.
  • showers generally have a single-button switching structure, which is easy to operate, but there is a common problem that consumers tend to press the button too far and miss the desired water outlet mode. This is because consumers often don’t know how many times they need to press the button to select the desired water outlet mode. If they press the button too quickly, it is easy to miss the desired water outlet mode. After missing the desired water outlet mode, they need to press enough cycles to select The desired function is out of water, resulting in a poor user experience.
  • buttons In order to facilitate the switching of water outlet modes, showers with multiple buttons have appeared on the market. Consumers can directly select the desired water outlet mode by pressing different buttons.
  • the existing multi-button switching structure generally gathers a plurality of buttons in one operating area, and the button operation feels tight and is easy to get stuck, and because the positions of several buttons are relatively close, it is easy to misuse.
  • the multi-button switching structure also has a certain distance between several button positions to obtain a better switching feel, there are many parts, difficult assembly, and relatively poor product production stability.
  • the technical problem to be solved by the present invention is to provide a water outlet switching mechanism whose water outlet mode switching is intuitive, easy and convenient, and has good structural stability.
  • the present invention provides a water outlet switching mechanism, which includes a housing, a switching switch arranged on the housing, a valve body inside the housing, and a switching lever associated with the switching switch ,
  • a water inlet cavity and at least two water outlet cavities are formed in the housing, the valve body is arranged correspondingly to the water outlet cavity, the valve body is provided with a first via hole communicating with the corresponding water outlet cavity and the water inlet cavity, and the switching The rod passes through the valve body, and a first sealing member is provided under the first through hole;
  • the water inlet cavity is provided with a first elastic reset member abutting against the switching lever, and the first elastic reset member makes the first sealing member block the first via hole when the switch is not pressed;
  • the changeover switch includes a button and a positioning seat, and the housing is provided with an accommodating chamber matching the positioning seat, and a swing fulcrum is provided at the center of the bottom of the positioning seat; the middle part of the button is in contact with the housing
  • the body is hinged, the bottom of the button protrudes into the accommodating cavity, and remains in elastic contact with the positioning seat, and the upper part of the button is formed with a driving part corresponding to the switching lever; when any driving part is pressed , the corresponding switching lever and the first sealing member on it move downwards, so that the corresponding water outlet chamber communicates with the water inlet chamber, and the positioning seat is centered on the swing fulcrum in the accommodating chamber to move away from the pressed One side of the drive unit swings downward.
  • a limiting groove is provided on the top surface of the positioning seat, and when the driving part is pressed to the bottom, the bottom of the button is in elastic contact with the groove bottom and the groove wall of the limiting groove at the same time.
  • the positioning seat is formed with support arms arranged around the swing fulcrum and corresponding to the driving parts one by one.
  • the support arm abuts against the bottom surface of the accommodation cavity.
  • the swing fulcrum is a protrusion formed at the center of the bottom of the positioning seat, the protrusion abuts against the bottom surface of the accommodating cavity, and the surface of the protrusion is a spherical or conical surface.
  • guide ribs are provided on the outer periphery of the protrusion, the guide ribs are located between two adjacent support arms, and the thickness of the guide ribs perpendicular to the bottom surface of the accommodating cavity does not exceed the thickness of the protrusion. 2/3;
  • the bottom surface of the guide rib is connected to the side wall by a chamfer or a round transition, and the end surface of the guide rib away from the end of the protrusion is connected to the bottom surface by a round transition.
  • the button includes a button body, a bushing seat and a latch, and the bushing seat is provided with a hinge shaft that is movable and hinged with the casing, and the hinge shaft is arranged crosswise with the latch pin, and the button The body is hinged to the bush seat through the bolt.
  • the button body is provided with a guide cylinder with an opening at the bottom, and a third elastic reset member and a positioning pin are arranged inside the guide cylinder, and one end of the positioning pin abuts against the third elastic reset member , and the other end abuts against the positioning seat.
  • a second via hole connecting the water outlet chamber and the water inlet chamber is provided in the housing, and the valve body includes a valve seat provided in the water outlet chamber, a second elastic valve seat provided in the valve seat A reset member, and a second sealing member abutted on the second through hole by the second elastic reset member, the second sealing member is sealed with the inner wall of the valve seat.
  • the side of the second sealing member away from the second via hole is provided with an inner chamber for accommodating the second elastic reset member, and the cross-sectional area of the inner chamber is larger than that of the second via hole.
  • the cross-sectional area of the via is larger than that of the second via hole.
  • the second seal includes a seal seat, an end face gasket and a wall seal ring, the wall seal ring is sleeved on the outer periphery of the seal seat, and the end face seal is arranged between the seal seat and the wall seal ring.
  • the first elastic return member is a tower spring
  • the inner diameter of the tower spring gradually decreases from bottom to top
  • a protruding ring abutting against the top of the tower spring is provided on the switching lever.
  • the housing includes a base and an upper cover, the upper cover is in sealing connection with the base, the water inlet cavity, the water outlet cavity and the accommodation cavity are formed on the base, the button is connected to the The upper cover is hinged.
  • the invention provides a water outlet switching mechanism.
  • the switching lever By setting a switching switch and a switching lever linked with it, the switching lever is set correspondingly to the water outlet chamber, and a driving part corresponding to the switching lever is formed on the button of the switching switch. Press any driving part , the switching lever and the first sealing member on it can be moved downward, and the first sealing member unblocks the first through hole on the valve body, so that the corresponding water outlet chamber communicates with the water inlet chamber;
  • Pressing the different driving parts on the button can switch the water outlet of different water outlet chambers, and the switching of the water outlet mode is intuitive, which is convenient for the user to choose the desired water outlet mode;
  • the button is hinged with the housing, the bottom of the button is in elastic contact with the positioning seat, and the positioning seat can swing with a swing fulcrum in the installation cavity.
  • the driving part of the button is pressed and abuts against the switching lever.
  • the hinged button of the shell is free to deflect as a whole, and the positioning seat is centered on the swing fulcrum to swing downward to the side away from the pressed driving part.
  • the entire switch is in a balanced state, and the button will not be twisted, deformed or stuck.
  • the situation, good structural stability, long service life, and the pressing process is very smooth, easy to switch, and feels good.
  • Fig. 1 is a three-dimensional structural schematic diagram of an embodiment of a water outlet switching mechanism of the present invention
  • Fig. 2 is the front view of the base of Fig. 1;
  • Fig. 3 is a schematic diagram of the A-A section structure of Fig. 2;
  • Fig. 4 is the plan view of the base of Fig. 1;
  • Fig. 5 is a schematic diagram of the B-B cross-sectional structure of Fig. 4;
  • Fig. 6 is a schematic diagram of an exploded structure of Fig. 1;
  • Fig. 7 is a first perspective view of the positioning seat of Fig. 6;
  • Figure 8 is a top view of Figure 1;
  • Fig. 9 is a schematic diagram of the C-C cross-sectional structure of Fig. 8.
  • Fig. 10 is a schematic diagram of the enlarged structure of part E of Fig. 9;
  • Fig. 11 is a second perspective view of the positioning seat of Fig. 6;
  • Fig. 12 is a schematic diagram of the D-D cross-sectional structure of Fig. 8;
  • FIG. 13 is a schematic diagram of an enlarged structure of part F in FIG. 12 .
  • the present invention provides an embodiment of a water outlet switching mechanism, including a housing 1, a switch 2 disposed on the housing 1, a valve body disposed inside the housing 1, and a The switching lever 4 linked by the switching switch 2, referring to Fig. 2 to Fig. 5, a water inlet chamber a and at least two water outlet chambers b are formed in the housing 1, referring to Fig.
  • valve body is provided with a first through hole 311 communicating with the corresponding water outlet chamber b and the water inlet chamber a, the switching rod 4 runs through the valve body, and is provided below the first through hole 311 There is a first sealing member 5; a first elastic return member 6 abutting against the switching lever 4 is provided in the water inlet chamber a, and the first elastic return member 6 makes the first elastic return member 6 when the switch 2 is not pressed.
  • a sealing member 5 blocks the first via hole 311;
  • the switch 2 includes a button 21 and a positioning seat 22, and the housing 1 is provided with an accommodating cavity c matching the positioning seat 22, combined with 7, the center of the bottom of the positioning seat 22 is provided with a swing fulcrum 221;
  • the middle part of the button 21 is hinged with the housing 1, and the bottom of the button 21 extends into the accommodating cavity c, and is aligned with the positioning
  • the seat 22 remains in elastic contact, and the upper part of the button 21 is formed with a driving part 21A corresponding to the switching lever 4; when any driving part 21A is pressed, the corresponding switching lever 4 and the first sealing member 5 on it will Move downwards so that the corresponding water outlet chamber b communicates with the water inlet chamber a, and the positioning seat 22 swings downward in the accommodating chamber c centering on the swing fulcrum 221 to the side away from the pressed driving part 21A .
  • the switch 2 and the switch lever 4 linked with it are provided.
  • the switch lever 4 is set corresponding to the water outlet chamber b.
  • the button 21 of the switch 2 forms a driving part 21A corresponding to the switch lever 4. Press any drive part 21A, the switching lever 4 and the first sealing member 5 on it can be moved downward, and the first sealing member 5 releases the blockage of the first through hole 311 on the valve body, so that the corresponding water outlet chamber b and the water inlet chamber a is connected; pressing different driving parts 21A on the button 21 can switch different water outlet chambers;
  • the different driving parts 21A of different driving parts can realize more than two types of water outlet switching, which simplifies the assembly of parts and facilitates assembly; in addition, the button 21 is hinged with the housing 1, and the bottom of the button 21 is in elastic contact with the positioning seat 22, and the positioning seat 22 can be in the The installation cavity swings with the swing fulcrum 221.
  • the driving part 21A of the button 21 is pressed and abuts against the switching lever 4.
  • the button 21 hinged with the housing 1 is free to deflect as a whole, and the positioning seat 22 Centering on the swing fulcrum 221 and swinging downward to the side away from the pressed driving part 21A, the entire switch 2 is in a balanced state, the button 21 will not be twisted, deformed or stuck, the structure is stable and the service life is long , and the pressing process is very smooth, easy to switch, and feels good.
  • the housing 1 includes a base 11 and an upper cover 12, the upper cover 12 is in sealing connection with the base 11, and the water inlet chamber a, the water outlet chamber b and the accommodating chamber c are all formed in the base 11
  • the button 21 is hinged with the upper cover 12 .
  • the button 21 specifically includes a button body 211, a bushing seat 212 and a pin 213.
  • the bushing seat 212 is provided with a hinge shaft that is articulated with the upper cover 12, and the hinge shaft is connected to the The pins 213 are arranged crosswise, and the button body 211 is hinged to the bush seat 212 through the pins 213 .
  • the upper cover 12 is provided with a shaft hole 121 for the hinge shaft to be installed.
  • the shaft hole 121 has a preset distance along the pressing direction, so that the hinge shaft can be generated in the shaft hole 121 along the pressing direction. displacement.
  • the button body 211 is provided with a guide cylinder 21B with an opening at the bottom, and the upper cover 12 is provided with a through hole for the guide cylinder 21B of the button 21 to pass through. , the pin 213 passes through the guide cylinder 21B and the bush seat 212 .
  • the guide cylinder 21B is provided with a third elastic resetting member 214 and a positioning pin 215 , one end of the positioning pin 215 abuts against the third elastic resetting member 214 , and the other end abuts against the positioning seat 22 .
  • the positioning seat 22 swings to an inclined state centered on the swing fulcrum 221 in the center of the bottom, and its top surface is an inclined surface.
  • the frictional force opposite to the elastic force of 6 can be made greater than the elastic force of the first elastic reset member 6 by roughening the slope or the end surface of the positioning pin 215 .
  • the top surface of the positioning seat 22 in this embodiment is provided with a limiting groove 222.
  • the bottom of the button 21 is elastically connected to the groove bottom and the groove wall of the limiting groove 222 at the same time. touch.
  • This can limit the overall deflection angle of the button 21 when the driving part 21A is pressed down to a certain extent, and when the pressure applied to the driving part 21A is too large, it can play a protective role and prevent the button 21 from being subjected to external heavy pressure on the driving part 21A.
  • a large deflection occurs during the action, causing the switching rod 4 to break, resulting in failure of the water outlet switching structure.
  • the swing fulcrum 221 can be directly formed on the bottom surface of the accommodation cavity c of the base 11 , or can be formed in the center of the bottom of the positioning seat 22 .
  • the swing fulcrum 221 is preferably a protrusion formed in the center of the bottom of the positioning seat 22, the protrusion abuts against the bottom surface of the accommodating cavity c, and the surface of the protrusion is spherical or conical face, to ensure that the positioning seat 22 can swing freely when the top is stressed.
  • the positioning seat 22 is formed with a support arm 223 arranged around the swing fulcrum 221 and corresponding to the driving parts 21A one-to-one.
  • the supporting arm 223 abuts against the bottom surface of the receiving cavity c.
  • the supporting arm 223 of the positioning seat 22 swings downward, the driving part 21A and the switching lever 4 that are pressed down are located in the opposite direction of the guide cylinder 21B.
  • the outer periphery of the protrusion is provided with guide ribs 224, the guide ribs 224 are located in the middle of two adjacent support arms 223, and the thickness of the guide ribs 224 perpendicular to the bottom surface of the accommodating cavity c does not exceed 2% of the thickness of the protrusion. /3;
  • the bottom surface of the guide rib 224 is connected to the side wall by a chamfer or rounded transition, and the end surface of the guide rib 224 away from the end of the protrusion is connected to the bottom surface by a rounded transition.
  • the guiding rib 224 helps the positioning seat 22 to swing quickly until the supporting arm 223 abuts against the bottom surface of the accommodating cavity c.
  • the base 11 is provided with a second through hole 111 connecting the water outlet chamber b and the water inlet chamber a
  • the valve body includes a valve seat 31 arranged in the water outlet chamber b, and a The second elastic restoring member 32 in the valve seat 31 and the second sealing member 33 abutted against the second via hole 111 by the second elastic restoring member 32, the second sealing member 33 and the The inner wall of the valve seat 31 is sealed.
  • the top of the valve seat 31 is provided with a third seal 7 which is sealingly connected with the upper cover 12 .
  • the side of the second sealing member 33 away from the second via hole 111 is provided with an inner cavity d for accommodating the second elastic reset member 32, and the first sealing member 5 can prevent the water in the inner cavity d from directly entering the water outlet In cavity b.
  • the cross-sectional area of the cavity d is preferably larger than the cross-sectional area of the second via hole 111 .
  • This pressure difference can help the second sealing part 33 to be pressed against the end face of the second via hole 111, relying on the water pressure difference for sealing, helping The water in the water inlet chamber a is prevented from entering the water outlet chamber b directly through the second via hole 111 .
  • the second elastic reset member 32 can additionally provide pressure for the second sealing member 33 to abut against the end surface of the second via hole 111, thereby preventing the failure of the water pressure differential seal caused by the instantaneous fluctuation of the water pressure in the water inlet chamber a. .
  • the second seal 33 specifically includes a seal seat 331, an end face gasket 332 and a wall seal ring 333, the wall seal ring 333 is sleeved on the outer periphery of the seal seat 331, and the end face seal 332 is arranged on the A side of the sealing seat 331 opposite to the second via hole 111 .
  • the wall sealing ring 333 can prevent the water in the inner chamber d from directly entering the water outlet chamber b, and the end face gasket 332 can help prevent the water in the water inlet chamber a from directly entering the water outlet chamber b through the second via hole 111 .
  • the first elastic reset member 6 of this embodiment is preferably Tower spring, the inner diameter of the tower spring gradually decreases from bottom to top, and the switching lever 4 is provided with a protruding ring 41 abutting against the top of the tower spring.
  • the second sealing member 33 is matched with the switching rod 4 to realize the sealing and blocking of the water outlet chamber b and the water inlet chamber a.
  • the diameter of the switching rod 4 is small, and the force of the bottom water pressure is small. The driving force can realize the water outlet switch, and the switch is easy and labor-saving.
  • the first seal 5 on the switch lever 4 seals the first through hole 311 of the seal seat 331 .
  • the water inlet chamber a and the inner cavity d in the sealing seat 331 form a closed area, because the cross-sectional area of the inner cavity d is larger than the cross-sectional area of the second via hole 111, it is bound to make the end face sealing gasket 332 and
  • the sealing seat 331 presses against the end surface of the second via hole 111 on the base 11, and seals by means of water pressure difference, so that the water channel in this state is in a closed state.
  • the switching lever 4 moves downward, so that the first through hole 311 is opened, so that the water flow from the inner chamber d
  • the first through hole 311 flows out, and the above-mentioned closed area is affected by the pressure relief.
  • the water inlet pressure of the water inlet chamber a is lower than the water flow pressure of the inner chamber d.
  • the water flow in the chamber a directly flows into the specific water outlet chamber b through the second via hole 111 to form a water outlet state.
  • the water outlet switching mechanism of this embodiment can be applied to hand showers, head showers, and structural applications of various valves.

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  • Mechanically-Actuated Valves (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

一种出水切换机构，包括壳体（1）、切换开关（2）、阀体及切换杆（4），壳体（1）内形成有进水腔和至少两个出水腔，阀体上设有连通对应出水腔与进水腔的第一过孔（311），切换杆（4）贯穿阀体，且在第一过孔（311）的下方设有第一密封件（5）；切换开关（2）包括按钮（21）和定位座（22），定位座（22）的底部中央设有摆动支点（221）；按钮（21）与壳体（1）铰接，按钮（21）的底部与定位座（22）保持弹性接触，按钮（21）的上部形成有与切换杆（4）对应的驱动部（21A）。该出水切换结构出水模式切换直观、轻松方便，且结构稳定性好。

Description

一种出水切换机构 技术领域
本发明涉及出水切换技术领域，尤其涉及一种出水切换机构。
背景技术
目前，花洒普遍为单按钮切换结构，其操作简单，但普遍存在消费者容易将按钮按过头，错过需要的出水模式的问题。这是因为消费者往往不清楚要按几下按钮才能选择到想要的出水模式，按的太快容易错过想要的出水模式，错过想要的出水模式后需要重新按够循环次数才能选择到想要的功能出水，导致使用体验不佳。
为方便出水模式切换，市面上出现了带有多个按钮的花洒，消费者可以直接通过按压不同的按钮选择想要的出水模式。但现有的多按钮切换结构一般将多个按钮聚集在一块操作区域，按钮操作手感较紧，容易卡住，而且由于几个按钮位置之间靠的比较近，容易误操作。还有的多按钮切换结构虽然将几个按钮位置之间的位置设置一定距离，获得了较好的切换手感，但存在零件繁多，组装困难，产品生产稳定性比较差的问题。
发明内容
本发明所要解决的技术问题在于，提供一种出水切换机构，其出水模式切换直观、轻松方便，且结构稳定性好。
为了解决上述技术问题，本发明提供了一种出水切换机构，包括壳体、设于壳体上的切换开关、设于所述壳体内部的阀体，以及与所述切换开关联动的切换杆，
所述壳体内形成有进水腔和至少两个出水腔，所述阀体与出水腔对应设置，所述阀体上设有连通对应出水腔与进水腔的第一过孔，所述切换杆贯穿所述阀体，且在所述第一过孔的下方设有第一密封件；
所述进水腔内设有与所述切换杆抵接的第一弹性复位件，所述第一弹性复 位件在切换开关不受按压时使第一密封件封堵所述第一过孔；
所述切换开关包括按钮和定位座，所述壳体上开设有与所述定位座相适配的容纳腔，所述定位座的底部中央设有摆动支点；所述按钮的中部与所述壳体铰接，所述按钮的底部伸入所述容纳腔，且与所述定位座保持弹性接触，所述按钮的上部形成有与所述切换杆对应的驱动部；当按下任一驱动部时，对应的切换杆及其上的第一密封件向下移动，使对应的出水腔与进水腔连通，且所述定位座在所述容纳腔内以摆动支点为中心向远离被按下的驱动部一侧朝下摆动。
作为上述方案的改进，所述定位座的顶面开设有限位槽，当所述驱动部按压到底时，所述按钮的底部同时与所述限位槽的槽底和槽壁弹性接触。
作为上述方案的改进，所述定位座形成有绕摆动支点设置，且与所述驱动部一一对应的支撑臂，当按下任一驱动部时，远离被按下的驱动部一侧的所述支撑臂与容纳腔的底面抵接。
作为上述方案的改进，所述摆动支点为形成于定位座底部中央的凸起，所述凸起与所述容纳腔的底面抵接，所述凸起的表面为球面或圆锥面。
作为上述方案的改进，所述凸起的外周设有导向筋，所述导向筋位于相邻两个支撑臂中间，所述导向筋垂直于容纳腔底面方向的厚度不超过所述凸起厚度的2/3；
所述导向筋的底面与侧壁之间以倒角或倒圆过渡连接，所述导向筋远离所述凸起一端的端面与底面之间以倒圆过渡连接。
作为上述方案的改进，所述按钮包括按钮本体、衬套座和插销，所述衬套座上设有与壳体活动铰接的铰接轴，所述铰接轴与所述插销交叉设置，所述按钮本体通过所述插销与所述衬套座铰接。
作为上述方案的改进，所述按钮本体设有底部开口的导向筒，所述导向筒内设有第三弹性复位件和定位销，所述定位销的一端与所述第三弹性复位件抵接，另一端与所述定位座抵接。
作为上述方案的改进，所述壳体内设有连通出水腔与进水腔的第二过孔，所述阀体包括设于出水腔内的阀座、设于所述阀座内的第二弹性复位件、以及被所述第二弹性复位件抵设在所述第二过孔上的第二密封件，所述第二密封件与所述阀座内壁密封。
作为上述方案的改进，所述第二密封件远离所述第二过孔的一侧设有用于容纳所述第二弹性复位件的内腔，所述内腔的横截面面积大于所述第二过孔的横截面积。
作为上述方案的改进，所述第二密封件包括密封座、端面密封垫和壁面密封圈，所述壁面密封圈套设在所述密封座的外周，所述端面密封垫设置在所述密封座与所述第二过孔相对的一侧。
作为上述方案的改进，第一弹性复位件为塔簧，所述塔簧从下到上的内径逐渐减小，所述切换杆上设有与所述塔簧顶部抵接的凸环。
作为上述方案的改进，所述壳体包括底座和上盖，所述上盖与所述底座密封连接，所述进水腔、出水腔和容纳腔形成于所述底座上，所述按钮与所述上盖铰接。
实施本发明，具有如下有益效果：
本发明提供了一种出水切换机构，通过设置切换开关及与之联动的切换杆，切换杆与出水腔对应设置，切换开关的按钮上形成与切换杆对应的驱动部，按下任一驱动部，可以使切换杆及其上的第一密封件向下移动，第一密封件解除对阀体上第一过孔的封堵，使对应的出水腔与进水腔连通；
按压按钮上不同的驱动部能够切换不同的出水腔出水，出水模式的切换直观，方便用户选择想要的出水模式；
只需要装配一组切换开关，通过按下按钮的不同驱动部，即能实现两种以上的出水切换，精简了零件装配，方便组装；
此外，按钮与壳体铰接，按钮的底部与定位座弹性接触，定位座能够在安装腔内以摆动支点摆动，在切换过程中，按钮的驱动部被按下，且与切换杆抵接，与壳体铰接的按钮整体发生自由偏转，且使定位座以摆动支点为中心向远离被按下的驱动部一侧朝下摆动，整个切换开关处于平衡状态，按钮不会发生扭曲变形或卡住的情形，结构稳定性好，使用寿命高，且按压过程十分平滑顺畅，切换轻松，手感好。
附图说明
图1是本发明一种出水切换机构一实施例的立体结构示意图；
图2是图1的底座的主视图；
图3是图2的A-A截面结构示意图；
图4是图1的底座的俯视图；
图5是图4的B-B截面结构示意图；
图6是图1的分解结构示意图；
图7是图6的定位座的第一立体示意图；
图8是图1的俯视图；
图9是图8的C-C截面结构示意图；
图10是图9的E部放大结构示意图；
图11是图6的定位座的第二立体结构示意图；
图12是图8的D-D截面结构示意图；
图13是图12的F部放大结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述。
如图1所示，本发明提供了一种出水切换机构的一实施例，包括壳体1、设于壳体1上的切换开关2、设于所述壳体1内部的阀体，以及与所述切换开关2联动的切换杆4，结合图2至图5，所述壳体1内形成有进水腔a和至少两个出水腔b，结合图6，所述阀体与出水腔b对应设置，所述阀体上设有连通对应出水腔b与进水腔a的第一过孔311，所述切换杆4贯穿所述阀体，且在所述第一过孔311的下方设有第一密封件5；所述进水腔a内设有与所述切换杆4抵接的第一弹性复位件6，所述第一弹性复位件6在切换开关2不受按压时使第一密封件5封堵所述第一过孔311；所述切换开关2包括按钮21和定位座22，所述壳体1上开设有与所述定位座22相适配的容纳腔c，结合图7，所述定位座22的底部中央设有摆动支点221；所述按钮21的中部与所述壳体1铰接，所述按钮21的底部伸入所述容纳腔c，且与所述定位座22保持弹性接触，所述按钮21的上部形成有与所述切换杆4对应的驱动部21A；当按下任一驱动部21A时，对应的切换杆4及其上的第一密封件5向下移动，使对应的出水腔b与进水腔a连通，且所述定位座22在所述容纳腔c内以摆动支点221为中心向远离被按下的驱动部21A一侧朝下摆动。
本实施例通过设置切换开关2及与之联动的切换杆4，切换杆4与出水腔b对应设置，切换开关2的按钮21上形成与切换杆4对应的驱动部21A，按下任一驱动部21A，可以使切换杆4及其上的第一密封件5向下移动，第一密封件5解除对阀体上第一过孔311的封堵，使对应的出水腔b与进水腔a连通；按压按钮21上不同的驱动部21A能够切换不同的出水腔b出水，出水模式的切换直观，方便用户选择想要的出水模式；只需要装配一组切换开关2，通过按下按钮21的不同驱动部21A，即能实现两种以上的出水切换，精简了零件装配，方便组装；此外，按钮21与壳体1铰接，按钮21的底部与定位座22弹性接触，定位座22能够在安装腔内以摆动支点221摆动，在切换过程中，按钮21的驱动部21A被按下，且与切换杆4抵接，与壳体1铰接的按钮21整体发生自由偏转，且使定位座22以摆动支点221为中心向远离被按下的驱动部21A一侧朝下摆动，整个切换开关2处于平衡状态，按钮21不会发生扭曲变形或卡住的情形，结构稳定性好，使用寿命高，且按压过程十分平滑顺畅，切换轻松，手感好。
具体地，所述壳体1包括底座11和上盖12，所述上盖12与所述底座11密封连接，所述进水腔a、出水腔b和容纳腔c均形成于所述底座11上，所述按钮21与所述上盖12铰接。
结合图8至图10，所述按钮21具体包括按钮本体211、衬套座212和插销213，所述衬套座212上设有与上盖12活动铰接的铰接轴，所述铰接轴与所述插销213交叉设置，所述按钮本体211通过所述插销213与所述衬套座212铰接。上盖12设有供铰接轴安装的轴孔121，为方便按钮本体211自由偏转，该轴孔121沿按压方向预留有预设距离，使铰接轴能够在该轴孔121内产生沿按压方向的位移。
所述按钮本体211设有底部开口的导向筒21B，所述上盖12设有供按钮21的导向筒21B穿过的通孔，所述导向筒21B经由衬套座212伸入容纳腔c内，所述插销213穿过所述导向筒21B和衬套座212。所述导向筒21B内设有第三弹性复位件214和定位销215，所述定位销215的一端与所述第三弹性复位件214抵接，另一端与所述定位座22抵接。
由于驱动部21A按压到底时，定位座22以底部中央的摆动支点221为中心摆动至倾斜状态，其顶面为斜面，按钮21底部的定位销215与该斜面之间存在与第一弹性复位件6的弹力相反的摩擦力，通过将该斜面或定位销215的端面 进行粗化等手段处理，可以使该摩擦力大于第一弹性复位件6的弹力。由此，在松开该驱动部21A时，也能使按钮21的驱动部21A，以及与驱动部21A对应的切换杆4保持在当前位置，即对应的出水腔b与进水腔a继续保持连通。
结合图11，本实施例定位座22的顶面开设有限位槽222，当所述驱动部21A按压到底时，所述按钮21的底部同时与所述限位槽222的槽底和槽壁弹性接触。由此可以在一定程度上限制驱动部21A下压时按钮21整体的偏转角度，当对驱动部21A施加的压力过大时，可以起到保护作用，防止按钮21在驱动部21A受外部重压作用时发生大的偏转，导致切换杆4折断，致使出水切换结构失效。
所述摆动支点221可以直接形成在底座11的容纳腔c底面，也可以形成于定位座22底部中央。为便于结构的成型与配合，该摆动支点221优选为形成于定位座22底部中央的凸起，所述凸起与所述容纳腔c的底面抵接，所述凸起的表面为球面或圆锥面，以确保定位座22在顶部受力时能够自由摆动。
所述定位座22形成有绕摆动支点221设置，且与所述驱动部21A一一对应的支撑臂223，当按下任一驱动部21A时，远离被按下的驱动部21A一侧的所述支撑臂223与容纳腔c的底面抵接。定位座22向下摆动的支撑臂223与被下压的驱动部21A、切换杆4位于导向筒21B的相反方向。
需要说明的是，当按钮21的各驱动部21A均不受按压时，导向筒21B与摆动支点221位于与所述切换杆4平行的同一直线上。
所述凸起的外周设有导向筋224，所述导向筋224位于相邻两个支撑臂223中间，所述导向筋224垂直于容纳腔c底面方向的厚度不超过所述凸起厚度的2/3；所述导向筋224的底面与侧壁之间以倒角或倒圆过渡连接，所述导向筋224远离所述凸起一端的端面与底面之间以倒圆过渡连接。该导向筋224有助于定位座22迅速摆动至支撑臂223与容纳腔c的底面抵接。
结合图12和图13，所述底座11内设有连通出水腔b与进水腔a的第二过孔111，所述阀体包括设于出水腔b内的阀座31、设于所述阀座31内的第二弹性复位件32、以及被所述第二弹性复位件32抵设在所述第二过孔111上的第二密封件33，所述第二密封件33与所述阀座31内壁密封。阀座31的顶部设有与上盖12密封连接的第三密封件7。
所述第二密封件33远离所述第二过孔111的一侧设有用于容纳所述第二弹性复位件32的内腔d，第一密封件5可以防止内腔d的水直接进入出水腔b内。 所述内腔d的横截面面积优选大于所述第二过孔111的横截面积。当出水腔b与进水腔a之间未连通时，由于所述内腔d的横截面面积大于所述第二过孔111的横截面积内外两侧的水压，因此作用在第二密封件33上内腔d侧的压力比进水腔a侧的压力更大，该压力差可以帮助将第二密封件33抵压在第二过孔111的端面，依靠水压差进行密封，帮助防止进水腔a的水直接通过第二过孔111进入出水腔b。
该第二弹性复位件32可以额外提供将第二密封件33抵接在第二过孔111端面的压力，由此可以防止由于进水腔a的水压瞬时波动造成水压差密封失效的问题。
所述第二密封件33具体包括密封座331、端面密封垫332和壁面密封圈333，所述壁面密封圈333套设在所述密封座331的外周，所述端面密封垫332设置在所述密封座331与所述第二过孔111相对的一侧。壁面密封圈333可以防止内腔d的水直接进入出水腔b内，端面密封垫332可以帮助防止进水腔a的水直接通过第二过孔111进入出水腔b。
由于切换杆4的杆径较小，为确保第一弹性复位件6能够稳定地张抵在切换杆4与进水腔a的腔底之间，本实施例的第一弹性复位件6优选为塔簧，所述塔簧从下到上的内径逐渐减小，所述切换杆4上设有与所述塔簧顶部抵接的凸环41。
本实施例将第二密封件33与切换杆4配合实现出水腔b与进水腔a的密封与封堵，切换杆4杆径较小，受到的底部水压作用力小，用较小的驱动力即可实现出水切换，切换轻松省力。
本实施例的出水切换机构在出水腔b与进水腔a未导通时：在塔簧的作用下，切换杆4上的第一密封件5将密封座331的第一过孔311封堵。此时，进水腔a与密封座331内的内腔d形成了一个封闭区域，因内腔d的横截面面积大于所述第二过孔111的横截面积，势必使得端面密封垫332和密封座331压住底座11上第二过孔111的端面，依靠水压差进行密封，使得该状态下的水路处于关闭状态。
本实施例的出水切换机构在出水腔b与进水腔a导通时：受驱动部21A的切换力作用，切换杆4往下移动，使得第一过孔311打开，使得内腔d水流从第一过孔311流出，上述封闭区域受泄压影响，进水腔a的进水压力小于内腔d 的水流压力，在压差作用下将端面密封垫332和密封座331推开，进水腔a的水流直接经第二过孔111流入特定出水腔b，形成出水状态。
当驱动部21A的切换力卸载时，按钮21底部的定位销215与该斜面之间存在摩擦力，该摩擦力与第一弹性复位件6的弹力相反的分力大于该弹力，使按钮21及与驱动部21A对应的切换杆4保持在当前位置，对应的出水腔b与进水腔a继续保持连通。
本实施例的出水切换机构可以适用于手持花洒，头部花洒，以及各种阀类的结构应用。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (12)

  1. 一种出水切换机构，其特征在于，包括壳体、设于壳体上的切换开关、设于所述壳体内部的阀体，以及与所述切换开关联动的切换杆，
    所述壳体内形成有进水腔和至少两个出水腔，所述阀体与出水腔对应设置，所述阀体上设有连通对应出水腔与进水腔的第一过孔，所述切换杆贯穿所述阀体，且在所述第一过孔的下方设有第一密封件；
    所述进水腔内设有与所述切换杆抵接的第一弹性复位件，所述第一弹性复位件在切换开关不受按压时使第一密封件封堵所述第一过孔；
    所述切换开关包括按钮和定位座，所述壳体上开设有与所述定位座相适配的容纳腔，所述定位座的底部中央设有摆动支点；所述按钮的中部与所述壳体铰接，所述按钮的底部伸入所述容纳腔，且与所述定位座保持弹性接触，所述按钮的上部形成有与所述切换杆对应的驱动部；当按下任一驱动部时，对应的切换杆及其上的第一密封件向下移动，使对应的出水腔与进水腔连通，且所述定位座在所述容纳腔内以摆动支点为中心向远离被按下的驱动部一侧朝下摆动。
  2. 如权利要求1所述的出水切换机构，其特征在于，所述定位座的顶面开设有限位槽，当所述驱动部按压到底时，所述按钮的底部同时与所述限位槽的槽底和槽壁弹性接触。
  3. 如权利要求1或2所述的出水切换机构，其特征在于，所述定位座形成有绕摆动支点设置，且与所述驱动部一一对应的支撑臂，当按下任一驱动部时，远离被按下的驱动部一侧的所述支撑臂与容纳腔的底面抵接。
  4. 如权利要求1所述的出水切换机构，其特征在于，所述摆动支点为形成于定位座底部中央的凸起，所述凸起与所述容纳腔的底面抵接，所述凸起的表面为球面或圆锥面。
  5. 如权利要求4所述的出水切换机构，其特征在于，所述凸起的外周设有导向筋，所述导向筋位于相邻两个支撑臂中间，所述导向筋垂直于容纳腔底面 方向的厚度不超过所述凸起厚度的2/3；
    所述导向筋的底面与侧壁之间以倒角或倒圆过渡连接，所述导向筋远离所述凸起一端的端面与底面之间以倒圆过渡连接。
  6. 如权利要求1所述的出水切换机构，其特征在于，所述按钮包括按钮本体、衬套座和插销，所述衬套座上设有与壳体活动铰接的铰接轴，所述铰接轴与所述插销交叉设置，所述按钮本体通过所述插销与所述衬套座铰接。
  7. 如权利要求6所述的出水切换机构，其特征在于，所述按钮本体设有底部开口的导向筒，所述导向筒内设有第三弹性复位件和定位销，所述定位销的一端与所述第三弹性复位件抵接，另一端与所述定位座抵接。
  8. 如权利要求1所述的出水切换机构，其特征在于，所述壳体内设有连通出水腔与进水腔的第二过孔，所述阀体包括设于出水腔内的阀座、设于所述阀座内的第二弹性复位件、以及被所述第二弹性复位件抵设在所述第二过孔上的第二密封件，所述第二密封件与所述阀座内壁密封。
  9. 如权利要求8所述的出水切换机构，其特征在于，所述第二密封件远离所述第二过孔的一侧设有用于容纳所述第二弹性复位件的内腔，所述内腔的横截面面积大于所述第二过孔的横截面积。
  10. 如权利要求8或9所述的出水切换机构，其特征在于，所述第二密封件包括密封座、端面密封垫和壁面密封圈，所述壁面密封圈套设在所述密封座的外周，所述端面密封垫设置在所述密封座与所述第二过孔相对的一侧。
  11. 如权利要求1或2所述的出水切换机构，其特征在于，第一弹性复位件为塔簧，所述塔簧从下到上的内径逐渐减小，所述切换杆上设有与所述塔簧顶部抵接的凸环。
  12. 如权利要求1或2所述的出水切换机构，其特征在于，所述壳体包括 底座和上盖，所述上盖与所述底座密封连接，所述进水腔、出水腔和容纳腔形成于所述底座上，所述按钮与所述上盖铰接。
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CN114192291A (zh) * 2021-12-03 2022-03-18 箭牌家居集团股份有限公司 一种出水切换机构

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