WO2023206736A1 - 提拉式切换阀与出水装置 - Google Patents

提拉式切换阀与出水装置 Download PDF

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Publication number
WO2023206736A1
WO2023206736A1 PCT/CN2022/098099 CN2022098099W WO2023206736A1 WO 2023206736 A1 WO2023206736 A1 WO 2023206736A1 CN 2022098099 W CN2022098099 W CN 2022098099W WO 2023206736 A1 WO2023206736 A1 WO 2023206736A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
water outlet
switching valve
sealing ring
switching shaft
Prior art date
Application number
PCT/CN2022/098099
Other languages
English (en)
French (fr)
Inventor
林方棋
胡力宏
江国斌
Original Assignee
漳州松霖智能家居有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 漳州松霖智能家居有限公司 filed Critical 漳州松霖智能家居有限公司
Publication of WO2023206736A1 publication Critical patent/WO2023206736A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings

Definitions

  • the present disclosure relates to the field of sanitary ware technology, and specifically to a pull-type switching valve and a water outlet device.
  • the lift-type switching valve is used more and more widely.
  • the lift-type switching valve has a stuck feeling during the process of switching water channels, and requires a large lifting force and pressing force.
  • the purpose of this disclosure is to provide a pull-type switching valve and water outlet device, which have a smooth switching feel and no stuck feeling.
  • a lift-type switching valve includes: a switching valve body including a through hole, one end of the through hole is a mounting hole, and the other end is a first water outlet. ; Also includes a water inlet and a second water outlet connected to the through hole and arranged oppositely in the radial direction of the through hole; a switching shaft, located in the through hole, including a first end and a second end, the third One end protrudes from the mounting hole, and the first end can control the switching shaft to switch between the pressing position and the lifting position in the through hole; the body part of the switching shaft is provided with a structure close to the A first sealing portion at the first end and a second sealing portion close to the second end, the diameters of the first sealing portion and the second sealing portion are larger than the diameter of the body portion; A first Y-shaped sealing ring and a second Y-shaped sealing ring are provided with openings facing each other; a limiting member is provided on the first water outlet
  • the second sealing part when the switching shaft is in the lifted position, the second sealing part achieves sealing through the first Y-shaped sealing ring and the inner wall of the through hole, and the third There is a gap between the two Y-shaped sealing rings and the inner wall of the through hole.
  • the second sealing part when the switching shaft is in the pressed position, the second sealing part achieves sealing through the second Y-shaped sealing ring and the inner wall of the through hole, and the first There is a gap between the Y-shaped sealing ring and the inner wall of the through hole.
  • the limiting member extends into the first water outlet, and when the switching shaft is in the pressing position, the second sealing portion is located in the water outlet, And through the second Y-shaped sealing ring and the limiting member, the water path between the water inlet and the first water outlet is closed.
  • the limiting member is inserted into the first water outlet of the switching valve body and interference-fits with the first water outlet.
  • the switching shaft is formed with a recessed hole extending toward the first end from the second end, and a recessed hole is formed on the switching shaft to communicate with the recessed hole.
  • a communication hole of a through hole, and the communication hole is located on a side of the first sealing part close to the first end.
  • the first sealing part is provided with a sealing ring.
  • a shaft sealing ring is provided between the first end of the switching shaft and the mounting hole of the switching valve body.
  • the lift-type switching valve further includes: a lifting head provided on the first end of the switching shaft.
  • a water outlet device which includes the above-mentioned pull-type switching valve.
  • the second sealing portion on the switching shaft is provided with a first Y-shaped sealing ring and a second Y-shaped sealing ring with openings facing each other.
  • the opening of the first Y-shaped sealing ring faces the first Y-shaped sealing ring.
  • the opening of the second Y-shaped sealing ring faces the installation hole; when switching the axial lifting position and moving, since the opening of the first Y-shaped sealing ring is opposite to the moving direction, the first Y-shaped sealing ring can be formed through the opening
  • the space shrinks and deforms, so that when the switching shaft moves to the pulling position, the pulling is smooth, the pulling force has no sudden change, and there is no jam; when the switching shaft moves from the pulling position to the pressing position, due to the second Y-shaped sealing ring
  • the opening is opposite to the direction of movement, and the second Y-shaped sealing ring can shrink and deform through the space formed at the opening, so that when switching the axial pressing position, the lifting is smooth and without jamming; through the first Y-shaped sealing ring and the second Y-shaped sealing ring,
  • the cooperation of the type sealing ring achieves a smooth switching feel of the pull-type switching valve without any stuck feeling.
  • FIG. 1 is a schematic diagram of a lift-type switching valve according to an embodiment of the present disclosure.
  • FIG. 2 is an exploded view of a lift-type switching valve according to an embodiment of the present disclosure.
  • Figure 3 is a schematic diagram of a switching valve body provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic cross-sectional view of a switching shaft according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic cross-sectional view of a pull-type switching valve in a pull-up state according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic cross-sectional view of a pull-type switching valve in a pressed state according to an embodiment of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments. To those skilled in the art.
  • the same reference numerals in the drawings indicate the same or similar structures, and thus their detailed descriptions will be omitted.
  • the pull-type switching valve includes: a switching valve body 10 , a switching shaft 20 and a limiter 30 .
  • the switching valve body 10 includes a through hole 100, one end of the through hole 100 is an installation port 140, and the other end is a first water outlet 120. It also includes a water inlet 110 and a third water inlet 110 that communicate with the through hole 100 and are oppositely arranged in the radial direction of the through hole 100.
  • Two water outlets 130; the switching shaft 20 is located in the through hole 100 and includes a first end 211 and a second end 212. The first end 211 extends from the installation port 140.
  • the first end 211 can control the switching shaft 20 in the through hole 100.
  • the body part 210 of the switching shaft 20 is provided with a first sealing part 221 close to the first end 211 and a second sealing part 222 close to the second end 212, the first sealing part 221 and The diameter of the second sealing part 222 is larger than the diameter of the body part 210;
  • the second sealing part 222 is provided with a first Y-shaped sealing ring 231 and a second Y-shaped sealing ring 232 with openings facing each other;
  • the limiting member 30 is provided on the first
  • the water outlet 120 is formed to limit the switching shaft 20 from exiting the through hole 100;
  • the limiter 30 is provided with a water outlet hole 310 communicating with the through hole 100.
  • the second sealing part 222 moves to the side close to the installation port 140 , and the water inlet 110 and the second sealing part 222 face the side of the first water outlet 120 .
  • the through hole 100 is connected, and the second water outlet 130 is connected with the through hole 100 on the side of the second sealing portion 222 facing the installation port 140; as shown in Figure 6, when the switching shaft 20 is in the pressed position, the water inlet 110 and the second water outlet 130 is simultaneously connected with the through hole 100 on the side of the second sealing part 222 facing the installation port 140, and the second sealing part 222 blocks the first water outlet 120.
  • the second sealing portion 222 on the switching shaft 20 is provided with a first Y-shaped sealing ring 231 and a second Y-shaped sealing ring 232 with openings facing each other.
  • the first Y-shaped sealing ring 231 The opening (open end) faces the first water outlet 120, and the opening of the second Y-shaped sealing ring 232 faces the installation port 140; when the switching shaft 20 moves to the lifting position, due to the opening and moving direction of the first Y-shaped sealing ring 231
  • the first Y-shaped sealing ring can shrink and deform through the space formed at the opening, so that when the switching shaft 20 moves to the lifting position, the lifting is smooth, there is no sudden change in the lifting force, and there is no jam; when the switching shaft 20 moves from the lifting position,
  • the second Y-shaped sealing ring can shrink and deform through the space formed at the opening
  • the second sealing portion 222 achieves sealing through the first Y-shaped sealing ring 231 and the inner wall of the through hole 100 , and the second Y-shaped sealing ring 231 is sealed with the inner wall of the through hole 100 .
  • There is a gap between the Y-shaped sealing ring 232 and the inner wall of the through hole 100 that is, in the pulled position, only the first Y-shaped sealing ring 231 is used to achieve sealing with the inner wall of the through hole 100 .
  • the switching shaft 20 Since the opening direction of the second Y-shaped sealing ring 232 is the same as the direction in which the switching shaft 20 moves toward the pulling position, the switching shaft 20 only realizes contact with the inner wall of the through hole 100 through the first Y-shaped sealing ring 231 in the pulling position. Sealing prevents the second Y-shaped sealing ring 232 from sealing with the inner wall of the through hole 100, thereby preventing the second Y-shaped sealing ring 232 from receiving a force opposite to the direction of its opening, thereby preventing the switching shaft 20 from moving to the pull position. There is a sudden change in the lifting force and the lifting is not smooth.
  • the cross-sections of the first Y-shaped sealing ring 231 and the second Y-shaped sealing ring 232 are Y-shaped (V-shaped).
  • the Y-shaped sealing rings rely on their open lips to adhere to the sealing surface without internal pressure. At this time, only a small contact pressure is generated due to the deformation of the lip tip.
  • every point in contact with the sealing medium has a normal pressure equal to the medium pressure, so the bottom of the lip ring will be axially compressed, the lip will be circumferentially compressed, and the contact with the sealing surface will become wider.
  • the contact stress increases.
  • the internal pressure increases again, the distribution pattern and size of the contact pressure further change, and the lip and sealing surface cooperate more closely, so the sealing performance is better, that is, the "self-sealing effect" of the Y-shaped sealing ring.
  • the sealing with the inner wall of the through hole 100 is only achieved through the first Y-shaped sealing ring 231 .
  • the first Y-shaped sealing ring used for sealing The opening of 231 faces the water path between the water inlet 110 and the first water outlet 120, and is subject to the force of water pressure, so that the lip of the first Y-shaped sealing ring 231 and the sealing surface cooperate more closely, and the sealing performance is better, achieving "Self-proclaimed effect".
  • the second sealing part 222 achieves sealing with the inner wall of the through hole 100 through the second Y-shaped sealing ring 232 , and the first Y-shaped There is a gap between the sealing ring 231 and the inner wall of the through hole 100 , that is, in the pressing position, only the second Y-shaped sealing ring 232 is used to achieve sealing with the inner wall of the through hole 100 .
  • the switching shaft 20 is sealed with the inner wall of the through hole 100 only through the second Y-shaped sealing ring 232 in the pulling position.
  • the first Y-shaped sealing ring 231 is prevented from being in sealing contact with the inner wall of the through hole 100 , thereby preventing the first Y-shaped sealing ring 231 from being subjected to a force opposite to the direction of its opening, thereby preventing the switching shaft 20 from moving to the pressing position.
  • the pressing force suddenly changes and the pressing is not smooth.
  • the switching shaft 20 When the switching shaft 20 is in the pressed position, the first water outlet 120 is sealed only by the second Y-shaped sealing ring 232. At this time, the opening of the second Y-shaped sealing ring 232 for sealing faces the water inlet. 110 and the second water outlet 130, and is subject to the force of water pressure, so that the lip of the second Y-shaped sealing ring 232 and the sealing surface fit more closely, the sealing performance is better, and the "self-sealing effect" is achieved.
  • the limiting member 30 extends into the first water outlet 120.
  • the second sealing portion 222 is located in the water outlet formed by the limiting member 30.
  • the water path between the water inlet 110 and the first water outlet 120 is closed.
  • the inserted end of the limiter 30 can cooperate with the second end 212 of the switching shaft 20 to seal the first water outlet 120; as shown in Figure 5, when the third end of the switching shaft 20 When the two ends 212 withdraw from the limiting member 30 , the water path between the water inlet 110 and the first water outlet 120 is connected.
  • the limiting member 30 is inserted into the first water outlet 120 of the switching valve body 10 and interference-fits with the first water outlet 120 .
  • the limiter 30 is provided with a sealing ring 320. After being inserted into the first water outlet 120 of the switching valve body 10, the sealing ring 320 is located between the limiter 30 and the first water outlet 120 of the switching valve body 10 to form a current.
  • the limiting member 30 can also be connected to the switching valve body 10 by threading, snapping or bonding, etc., and this disclosure does not limit this.
  • a sealing ring 221 is provided on the first sealing part 221 , and the sealing ring 221 may be an O-shaped sealing ring.
  • the sealing ring 221 is used to achieve sealing between the first sealing portion 221 and the inner wall of the through hole 100 .
  • One, two or more sealing rings 221 may be provided on the first sealing part 221, and this disclosure does not limit this.
  • the cross-section of the sealing ring 221 may be circular, rectangular, trapezoidal or other irregular shapes. Anything that can achieve the sealing technical effect falls within the protection scope of the present disclosure.
  • the sealing ring 221 can be installed between the switching shaft 20 and the switching valve body 10 by providing an installation groove on the inner wall of the switching shaft 20 .
  • an installation groove may also be formed in the through hole 100 to install the shaft sealing ring 50 between the switching shaft 20 and the switching valve body 10 .
  • a shaft sealing ring 50 is provided between the first end 211 of the switching shaft 20 and the installation port 140 of the switching valve body 10 to realize the switching shaft 20 seal with the mounting port 140.
  • One, two or more shaft sealing rings 50 may be disposed between the first end 211 of the switching shaft 20 and the installation port 140 of the switching valve body 10, and this disclosure does not limit this.
  • the cross-section of the shaft sealing ring 50 may be circular, rectangular, trapezoidal or other irregular shapes. Anything that can achieve the sealing technical effect falls within the protection scope of the present disclosure.
  • the shaft sealing ring 50 can be installed between the switching shaft 20 and the switching valve body 10 by providing an installation groove on the inner wall of the through hole 100 .
  • an installation groove can also be formed on the switching shaft 20 so that the shaft sealing ring 50 can be installed between the switching shaft 20 and the switching valve body 10 .
  • the lift-type switching valve further includes: a lift head 40 , and the lift head 40 is provided on the first end 211 of the switching shaft 20 .
  • the lifting head 40 Through the lifting head 40, the switching shaft 20 can be easily controlled to switch between the lifting position and the pressing position.
  • a snap-in hole can be formed in the lifting head 40, the first end 211 of the switching shaft 20 forms a snap-in structure that matches the snap-in hole, and the first end 211 of the switching shaft 20 is inserted into the snap-in hole to realize the lifting head.
  • a mounting hole can be formed in the lifting head 40, and the first end 211 of the switching shaft 20 is inserted into the mounting hole and interference-fits with the mounting hole to realize the lifting head 40 and the switching shaft 20
  • Fixed connection alternatively, a threaded hole is formed in the lifting head 40, an external thread is formed on the first end 211 of the switching shaft 20, and the lifting head 40 and the switching shaft 20 are threadedly connected;
  • the connection method is not limited, and any technical solution that can realize fixed connection falls within the scope of protection of the present disclosure.
  • the switching shaft 20 when switching from the first water outlet 120 to the second water outlet 130, the switching shaft 20 is pressed, and the small end of the second Y-shaped sealing ring 232 on the switching shaft 20 first extends into the stopper 30. Sealing, then the open end of the second Y-shaped sealing ring 232 deforms and enters the sealing surface to block the first water outlet 120. At the same time, the second Y-shaped sealing ring 232 detaches, opening the water path of the second water outlet 130 to realize water path switching.
  • a limiting step is provided on the inner wall of one end of the through hole 100 close to the installation opening 140.
  • the switching shaft 20 When the first sealing part 221 contacts the limiting step, the switching shaft 20 is in the pulling position. At this time, the first sealing part 221 is close to the limiting step. There is an accommodation space between one side of the installation opening 140 and the through hole 100 .
  • the switching shaft 20 is formed with a recessed hole 250 extending from the second end 212 toward the first end 211 , the switching shaft 20 is provided with a communication hole connecting the recessed hole 250 and the through hole 100 260, and the communication hole 260 is located on the side of the first sealing part 221 close to the first end 211; after the water path between the water inlet 110 and the first water outlet 120 is connected, the water flow will flow to the recessed hole 250 through the recessed hole 250, And flows through the recessed hole 250 into the accommodation space on the side of the first sealing part 221 close to the installation opening 140.
  • the surface of the first sealing part 221 facing away from the second sealing part 222 is subject to water pressure; at the same time, the second sealing part 222 faces away from the second sealing part 222.
  • the surface of a sealing portion 221 is also subjected to water pressure.
  • the cross-sectional area of the first sealing part 221 is smaller than the cross-sectional area of the second sealing part 222.
  • the direction of the water pressure force received by the second sealing part 222 is opposite to the direction of the pressing operation.
  • the water pressure received by the first sealing part 221 The force can offset part of the hydraulic pressure force received by the second sealing part 222, thereby reducing the pressing operation force and realizing labor-saving operation of water path switching.
  • the switching shaft 20 when switching from the second water outlet 130 to the first water outlet 120 , the switching shaft 20 is pulled up, and the small end of the first Y-shaped sealing ring 231 on the switching shaft 20 first enters the sealing surface of the through hole 100 , then the open end of the first Y-shaped sealing ring 231 deforms and seals with the inner wall of the through hole 100 to block the second water outlet 130.
  • the second Y-shaped sealing ring 232 breaks away from the sealing surface of the limiter 30 and opens the second Y-shaped sealing ring 232.
  • a water channel with a water outlet 120 realizes water channel switching.
  • the water outlet hole 310 of the limiting member 30 is provided with a limiting step. When the second end 212 of the switching shaft 20 contacts the limiting step, the switching shaft 20 is in the pressing position.
  • the lifting force needs to mainly overcome the hydraulic pressure difference caused by the difference in cross-sectional area between the second sealing portion 222 and the first sealing portion 221 of the switching shaft 20 .
  • the cross-sectional areas are relatively close, so the pressure difference under water pressure is small at this time, thus achieving labor-saving switching.
  • the water inlet 110, the first water outlet 120 and the second water outlet 130 of the switching valve body 10 are all provided with external threads, so that For threaded connection with pipelines.
  • An embodiment of the present disclosure also provides a water outlet device, which includes the above-mentioned pull-type switching valve.
  • the water outlet device may be, for example, a faucet, a shower, or other sanitary device with a pop-up switching valve. Please refer to the above discussion on the pop-up switching valve for its beneficial effects, which will not be described again here.

Abstract

一种提拉式切换阀和出水装置，该提拉式切换阀包括：切换阀主体、切换轴和限位件，切换轴位于通孔中，切换轴的本体部上设有靠近第一端的第一密封部和靠近第二端的第二密封部，第一密封部与第二密封部的直径大于本体部的直径；第二密封部上设有开口相向设置的第一Y型密封圈和第二Y型密封圈；其中，当切换轴位于提拉位置，第二密封部移动至靠近安装孔的一侧，进水口与第二密封部朝向第一出水口一侧的通孔连通，第二出水口与第二密封部朝向安装孔一侧的通孔连通；当切换轴位于按压位置，进水口与第二出水口同时与第二密封部朝向安装孔一侧的通孔连通，第二密封部封堵第一出水口。该提拉式切换阀，切换手感顺畅，无卡顿感。

Description

提拉式切换阀与出水装置 技术领域
本公开涉及卫浴技术领域，具体而言，涉及一种提拉式切换阀与出水装置。
 背景技术
随着人民生活水平的逐渐提升，人们对家庭卫浴用具的要求也越来越高。提拉式切换阀作为一种便捷的出水切换阀，其应用越来越广泛。
目前，提拉式切换阀在切换水路的过程中，具有卡顿感，且要施加较大的提拉力和按压力。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
 技术问题
本公开的目的在于提供一种提拉式切换阀与出水装置，切换手感顺畅，无卡顿感。
 技术解决方案
根据本公开的一个方面，提供了一种提拉式切换阀，该提拉式切换阀包括：切换阀主体，包括通孔，所述通孔的一端为安装孔，另一端为第一出水口；还包括连通所述通孔且在所述通孔的径向上相对设置的进水口和第二出水口；切换轴，位于所述通孔中，包括第一端和第二端，所述第一端从所述安装孔伸出，通过所述第一端能控制所述切换轴在所述通孔中在按压位置和提拉位置切换；所述切换轴的本体部上设有靠近所述第一端的第一密封部和靠近所述第二端的第二密封部，所述第一密封部与所述第二密封部的直径大于所述本体部的直径；所述第二密封部上设有开口相向设置的第一Y型密封圈和第二Y型密封圈；限位件，设于所述第一出水口上，形成对所述切换轴退出所述通孔的限位；所述限位件上设有连通所述通孔的出水孔；其中，当所述切换轴位于所述提拉位置，所述第二密封部移动至靠近所述安装孔的一侧，所述进水口与所述第二密封部朝向所述第一出水口一侧的所述通孔连通，所述第二出水口与所述第二密封部朝向所述安装孔一侧的所述通孔连通；当所述切换轴位于按压位置，所述进水口与所述第二出水口同时与所述第二密封部朝向所述安装孔一侧的所述通孔连通，所述第二密封部封堵所述第一出水口。
在本公开的一种示例性实施例中，当所述切换轴位于提拉位置，所述第二密封部通过所述第一Y型密封圈与所述通孔的内壁实现密封，所述第二Y型密封圈与所述通孔的内壁之间具有间隙。
在本公开的一种示例性实施例中，当所述切换轴位于按压位置，所述第二密封部通过所述第二Y型密封圈与所述通孔的内壁实现密封，所述第一Y型密封圈与所述通孔的内壁之间具有间隙。
在本公开的一种示例性实施例中，所述限位件伸入所述第一出水口中，当所述切换轴位于所述按压位置，所述第二密封部位于所述出水孔中，且通过所述第二Y型密封圈与所述限位件密封连接，将所述进水口与所述第一出水孔之间的水路关闭。
在本公开的一种示例性实施例中，所述限位件插设于所述切换阀主体的所述第一出水口上，并与所述第一出水口过盈配合。
在本公开的一种示例性实施例中，所述切换轴从所述第二端形成有朝向所述第一端延伸的凹陷孔，所述切换轴上设有连通所述凹陷孔与所述通孔的连通孔，且所述连通孔位于所述第一密封部靠近所述第一端的一侧。
在本公开的一种示例性实施例中，所述第一密封部设有密封圈。
在本公开的一种示例性实施例中，所述切换轴的所述第一端与所述切换阀主体的所述安装孔之间设有轴密封圈。
在本公开的一种示例性实施例中，所述提拉式切换阀还包括：提拉头，设于所述切换轴的所述第一端上。
根据本公开的另一个方面，提供了一种出水装置，该出水装置包括上述的提拉式切换阀。
 有益效果
本公开提供的提拉式切换阀，切换轴上的第二密封部上设有开口相向设置的第一Y型密封圈和第二Y型密封圈，第一Y型密封圈的开口朝向第一出水口，第二Y型密封圈的开口朝向安装孔；在切换轴向提拉位置移动时，由于第一Y型密封圈的开口与移动方向相反，第一Y型封圈可通过开口处形成的空间进行收缩形变，使得切换轴向提拉位置移动时提拉平顺，提拉力无突变，无卡顿；当切换轴从提拉位置向按压位置进行移动时，由于第二Y型密封圈的开口与移动方向相反，第二Y型封圈可通过开口处形成的空间进行收缩形变，使得切换轴向按压位置移动时提拉平顺，无卡顿；通过第一Y型密封圈和第二Y型密封圈配合，实现了提拉式切换阀切换手感顺畅，无卡顿感。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
 附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开的一种实施例提供的提拉式切换阀的示意图。
图2为本公开的一种实施例提供的提拉式切换阀的爆炸图。
图3为本公开的一种实施例提供的切换阀主体的示意图。
图4为本公开的一种实施例提供的切换轴的剖面示意图。
图5为本公开的一种实施例提供的提拉式切换阀处于提拉状态的剖面示意图。
图6为本公开的一种实施例提供的提拉式切换阀处于按压状态的剖面示意图。
 本发明的实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”等仅作为标记使用，不是对其对象的数量限制。
本公开实施方式提供了一种提拉式切换阀，如图1-图6所示，该提拉式切换阀包括：切换阀主体10、切换轴20和限位件30。切换阀主体10包括通孔100，通孔100的一端为安装口140，另一端为第一出水口120，还包括连通通孔100且在通孔100的径向上相对设置的进水口110和第二出水口130；切换轴20位于通孔100中，包括第一端211和第二端212，第一端211从安装口140伸出，通过第一端211能控制切换轴20在通孔100中在按压位置和提拉位置切换；切换轴20的本体部210上设有靠近第一端211的第一密封部221和靠近第二端212的第二密封部222，第一密封部221与第二密封部222的直径大于本体部210的直径；第二密封部222上设有开口相向设置的第一Y型密封圈231和第二Y型密封圈232；限位件30设于第一出水口120上，形成对切换轴20退出通孔100的限位；限位件30上设有连通通孔100的出水孔310。
其中，如图5所示，当切换轴20位于提拉位置，第二密封部222移动至靠近安装口140的一侧，进水口110与第二密封部222朝向第一出水口120一侧的通孔100连通，第二出水口130与第二密封部222朝向安装口140一侧的通孔100连通；如图6所示，当切换轴20位于按压位置，进水口110与第二出水口130同时与第二密封部222朝向安装口140一侧的通孔100连通，第二密封部222封堵第一出水口120。
本公开提供的提拉式切换阀，切换轴20上的第二密封部222上设有开口相向设置的第一Y型密封圈231和第二Y型密封圈232，第一Y型密封圈231的开口（张开端）朝向第一出水口120，第二Y型密封圈232的开口朝向安装口140；在切换轴20向提拉位置移动时，由于第一Y型密封圈231的开口与移动方向相反，第一Y型封圈可通过开口处形成的空间进行收缩形变，使得切换轴20向提拉位置移动时提拉平顺，提拉力无突变，无卡顿；当切换轴20从提拉位置向按压位置进行移动时，由于第二Y型密封圈232的开口与移动方向相反，第二Y型封圈可通过开口处形成的空间进行收缩形变，使得切换轴20向按压位置移动时提拉平顺，无卡顿；通过第一Y型密封圈231和第二Y型密封圈232配合，实现了提拉式切换阀切换手感顺畅，无卡顿感。
在本公开的一种实施例中，如图5所示，当切换轴20位于提拉位置，第二密封部222通过第一Y型密封圈231与通孔100的内壁实现密封，第二Y型密封圈232与通孔100的内壁之间具有间隙，即在提拉位置仅通过第一Y型密封圈231实现与通孔100的内壁密封。
其中，由于第二Y型密封圈232的开口方向与切换轴20朝向提拉位置移动的方向相同，切换轴20在提拉位置仅通过第一Y型密封圈231实现与通孔100的内壁的密封，避免了第二Y型密封圈232与通孔100的内壁进行密封，从而避免了第二Y型密封圈232受到与其开口方向相反的力，进而避免了切换轴20向提拉位置移动时出现提拉力突变，提拉不顺的情况。
如图4所示，第一Y型密封圈231和第二Y型密封圈232的截面呈Y形（V型），Y形密封圈依靠其张开的唇边贴于密封面，无内压时，仅仅因唇尖的变形而产生很小的接触压力。在密封的情况下，与密封介质接触的每一点上均有与介质压力相等的法向压力，所以唇形圈底部将受到轴向压缩，唇部受到周向压缩，与密封面接触变宽，同时接触应力增加。当内压再升高时，接触压力的分布形式和大小进一步改变，唇部与密封面配合更紧密，所以密封性更好，即Y形密封圈的“自封作用”。
如图5所示，当切换轴20位于提拉位置时，仅通过第一Y型密封圈231实现与通孔100的内壁密封，此时，用于起到密封作用的第一Y型密封圈231的开口朝向进水口110与第一出水口120之间的水路，且受到水压的作用力，使第一Y型密封圈231的唇部与密封面配合更紧密，密封性更好，实现“自封作用”。
在本公开的一种实施例中，如图6所示，当切换轴20位于按压位置，第二密封部222通过第二Y型密封圈232与通孔100的内壁实现密封，第一Y型密封圈231与通孔100的内壁之间具有间隙，即在按压位置仅通过第二Y型密封圈232实现与通孔100的内壁的密封。
其中，由于第二Y型密封圈232的开口与切换轴20朝向按压位置移动的方向相同，切换轴20在提拉位置仅通过第二Y型密封圈232实现与通孔100的内壁的密封，避免了第一Y型密封圈231与通孔100的内壁进行密封抵接，从而避免了第一Y型密封圈231受到与其开口方向相反的力，进而避免了切换轴20向按压位置移动时出现按压力突变，按压不顺的情况。
当切换轴20位于按压位置位时，仅通过第二Y型密封圈232实现第一出水口120的密封，此时，用于起到密封作用的第二Y型密封圈232的开口朝向进水口110与第二出水口130之间的水路，且受到水压的作用力，使第二Y型密封圈232的唇部与密封面配合更紧密，密封性更好，实现“自封作用”。
在本公开的一种实施例中，限位件30伸入第一出水口120中，如图6所示，当切换轴20位于按压位置，第二密封部222位于限位件30形成的出水孔310中，且通过第二Y型密封圈232与限位件30密封连接，将进水口110与第一出水口120之间的水路关闭。示例的，如图6所示，限位件30插入的端部能够与切换轴20的第二端212配合实现对第一出水口120的密封；如图5所示，当切换轴20的第二端212从限位件30从退出时，进水口110与第一出水口120之间的水路连通。
示例的，如图5和图6所示，限位件30插设于切换阀主体10的第一出水口120上，并与第一出水口120过盈配合。限位件30上设有密封圈320，插设于切换阀主体10的第一出水口120上后，密封圈320位于限位件30与切换阀主体10的第一出水口120之间形成目前。当然，限位件30还可与切换阀主体10螺纹连接、卡接或粘接等方式连接在一起，本公开对此不做限制。
在本公开的一种实施例中，如图4-图6所示，第一密封部221上设有密封圈221，该密封圈221可为O形密封圈。通过密封圈221实现第一密封部221与通孔100内壁之间的密封。第一密封部221上可设置一个、两个或更多个密封圈221，本公开对此不做限制。密封圈221的截面可为圆形、矩形、梯形或其他不规则形成，凡是能实现密封技术效果的，均属于本公开的保护范围。
其中，如图4所示，可通过在切换轴20的内壁上设置安装槽，以将密封圈221安装在切换轴20与切换阀主体10之间。当然，也可在通孔100上形成安装槽，将以将轴密封圈50安装在切换轴20与切换阀主体10之间。
在本公开的一种实施例中，如图5和图6所示，切换轴20的第一端211与切换阀主体10的安装口140之间设有轴密封圈50，以实现切换轴20与安装口140之间的密封。切换轴20的第一端211与切换阀主体10的安装口140之间可设置一个、两个或更多个轴密封圈50，本公开对此不做限制。轴密封圈50的截面可为圆形、矩形、梯形或其他不规则形成，凡是能实现密封技术效果的，均属于本公开的保护范围。
其中，可通过在通孔100的内壁上设置安装槽，以将轴密封圈50安装在切换轴20与切换阀主体10之间。当然，也可在切换轴20上形成安装槽，将以将轴密封圈50安装在切换轴20与切换阀主体10之间。
在本公开的一种实施例中，如图5和图6所示，提拉式切换阀还包括：提拉头40，提拉头40设于切换轴20的第一端211上。通过提拉头40，能够便于控制切换轴20在提拉位置和按压位置进行切换。
示例的，提拉头40中可形成卡接孔，切换轴20的第一端211形成与卡接孔匹配的卡接结构，切换轴20的第一端211插入卡接孔以实现提拉头40与切换轴20的卡接；或者，提拉头40中可形成安装孔，切换轴20的第一端211插入安装孔并与安装孔过盈配合，以实现提拉头40与切换轴20固定连接；或者，提拉头40中形成螺纹孔，在切换轴20的第一端211形成外螺纹，提拉头40与切换轴20螺纹连接；本公开对提拉头40与切换轴20的连接方式不作限制，凡是能够实现固定连接技术方案，均属于本公开的保护范围。
具体地，当从第一出水口120切换至第二出水口130时，对切换轴20进行按压，切换轴20上的第二Y型密封圈232的小端先伸入限位件30中进行密封，接着第二Y型密封圈232张开端变形，进入密封面，实现封堵第一出水口120，同时第二Y型密封圈232脱离，打开第二出水口130的水路，实现水路切换。其中，通孔100内靠近安装口140一端的内壁上设有限位台阶，当第一密封部221与限位台阶抵接时，则切换轴20处于提拉位置，此时第一密封部221靠近安装口140的一侧与通孔100之间具有容纳空间。
在切换过程中，如图5所示，由于切换轴20从第二端212形成有朝向第一端211延伸的凹陷孔250，切换轴20上设有连通凹陷孔250与通孔100的连通孔260，且连通孔260位于第一密封部221靠近第一端211的一侧；进水口110与第一出水口120之间的水路连通后，此时水流会通过凹陷孔250流向凹陷孔250，并通过凹陷孔250流向第一密封部221靠近安装口140一侧的容纳空间内，此时第一密封部221背离第二密封部222的表面受到水压；同时，第二密封部222背离第一密封部221的表面也受到水压。第一密封部221的截面积相对第二密封部222的截面积较小，第二密封部222面受到的水压作用力方向与按压操作的方向相反，通过第一密封部221受到的水压作用力可抵消第二密封部222受到的部分水压作用力，从而减小按压操作力，实现省力操作水路切换。
具体地，当从第二出水口130切换至第一出水口120时，对切换轴20进行提拉，切换轴20上的第一Y型密封圈231的小端先进入通孔100的密封面，接着第一Y型密封圈231的张开端变形，与通孔100的内壁密封，实现封堵第二出水口130，同时第二Y型密封圈232脱离出限位件30的密封面，打开第一出水口120的水路，实现水路切换。其中，限位件30的出水孔310内设有限位台阶，当切换轴20的第二端212与限位台阶抵接时，则切换轴20位于按压位置。
在此切换过程中，如图6所示，提拉力需主要克服水压作用在切换轴20的第二密封部222与第一密封部221的截面面积差所产生的水压压力差，由于两处截面面积较为接近，因此此时受水压压力差较小，从而实现省力切换。
在本公开的一种实施例中，如图3、图5和图6所示，切换阀主体10的进水口110、第一出水口120和第二出水口130上均设有外螺纹，以便于与管路进行螺纹连接。
本公开的实施例还提供了一种出水装置，出水装置包括上述的提拉式切换阀。该出水装置例如可为具有提拉式切换阀的水龙头、淋浴器等卫浴装置，其具有的有益效果请参照上述关于提拉式切换阀中的论述，在此不再赘述。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (10)

  1. 一种提拉式切换阀，其特征在于，包括：
    切换阀主体，包括通孔，所述通孔的一端为安装孔，另一端为第一出水口；还包括连通所述通孔且在所述通孔的径向上相对设置的进水口和第二出水口；
    切换轴，位于所述通孔中，包括第一端和第二端，所述第一端从所述安装孔伸出，通过所述第一端能控制所述切换轴在所述通孔中在按压位置和提拉位置切换；所述切换轴的本体部上设有靠近所述第一端的第一密封部和靠近所述第二端的第二密封部，所述第一密封部与所述第二密封部的直径大于所述本体部的直径；所述第二密封部上设有开口相向设置的第一Y型密封圈和第二Y型密封圈；
    限位件，设于所述第一出水口上，形成对所述切换轴退出所述通孔的限位；所述限位件上设有连通所述通孔的出水孔；
    其中，当所述切换轴位于所述提拉位置，所述第二密封部移动至靠近所述安装孔的一侧，所述进水口与所述第二密封部朝向所述第一出水口一侧的所述通孔连通，所述第二出水口与所述第二密封部朝向所述安装孔一侧的所述通孔连通；当所述切换轴位于按压位置，所述进水口与所述第二出水口同时与所述第二密封部朝向所述安装孔一侧的所述通孔连通，所述第二密封部封堵所述第一出水口。
  2. 根据权利要求1所述的提拉式切换阀，其特征在于，当所述切换轴位于提拉位置，所述第二密封部通过所述第一Y型密封圈与所述通孔的内壁实现密封，所述第二Y型密封圈与所述通孔的内壁之间具有间隙。
  3. 根据权利要求1所述的提拉式切换阀，其特征在于，当所述切换轴位于按压位置，所述第二密封部通过所述第二Y型密封圈与所述通孔的内壁实现密封，所述第一Y型密封圈与所述通孔的内壁之间具有间隙。
  4. 根据权利要求1所述的提拉式切换阀，其特征在于，所述限位件伸入所述第一出水口中，当所述切换轴位于所述按压位置，所述第二密封部位于所述出水孔中，且通过所述第二Y型密封圈与所述限位件密封连接，将所述进水口与所述第一出水孔之间的水路关闭。
  5. 根据权利要求4所述的提拉式切换阀，其特征在于，所述限位件插设于所述切换阀主体的所述第一出水口上，并与所述第一出水口过盈配合。
  6. 根据权利要求1所述的提拉式切换阀，其特征在于，所述切换轴从所述第二端形成有朝向所述第一端延伸的凹陷孔，所述切换轴上设有连通所述凹陷孔与所述通孔的连通孔，且所述连通孔位于所述第一密封部靠近所述第一端的一侧。
  7. 根据权利要求1所述的提拉式切换阀，其特征在于，所述第一密封部设有密封圈。
  8. 根据权利要求1所述的提拉式切换阀，其特征在于，所述切换轴的所述第一端与所述切换阀主体的所述安装孔之间设有轴密封圈。
  9. 根据权利要求1所述的提拉式切换阀，其特征在于，所述提拉式切换阀还包括：
    提拉头，设于所述切换轴的所述第一端上。
  10. .一种出水装置，其特征在于，包括权利要求1-9任一项所述的提拉式切换阀。
PCT/CN2022/098099 2022-04-26 2022-06-10 提拉式切换阀与出水装置 WO2023206736A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253177A1 (en) * 1973-11-29 1975-06-27 Knapp Alfons Bath valve with automatic reset - has large spring chamber and shaft to ensure damping with piston
JP2002250453A (ja) * 2001-02-20 2002-09-06 Smc Corp ポペット式スプール
CN201764007U (zh) * 2010-08-27 2011-03-16 厦门市易洁卫浴有限公司 提拉式切换阀
CN102686919A (zh) * 2009-12-04 2012-09-19 株式会社早川阀门制作所 金属制切换旋塞
CN113245080A (zh) * 2021-06-01 2021-08-13 厦门松霖科技股份有限公司 排水阀及出水装置
CN113775007A (zh) * 2021-09-01 2021-12-10 厦门瑞尔特卫浴科技股份有限公司 一种液压驱动结构及具有该结构的马桶装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253177A1 (en) * 1973-11-29 1975-06-27 Knapp Alfons Bath valve with automatic reset - has large spring chamber and shaft to ensure damping with piston
JP2002250453A (ja) * 2001-02-20 2002-09-06 Smc Corp ポペット式スプール
CN102686919A (zh) * 2009-12-04 2012-09-19 株式会社早川阀门制作所 金属制切换旋塞
CN201764007U (zh) * 2010-08-27 2011-03-16 厦门市易洁卫浴有限公司 提拉式切换阀
CN113245080A (zh) * 2021-06-01 2021-08-13 厦门松霖科技股份有限公司 排水阀及出水装置
CN113775007A (zh) * 2021-09-01 2021-12-10 厦门瑞尔特卫浴科技股份有限公司 一种液压驱动结构及具有该结构的马桶装置

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