WO2018045963A1 - 防虹吸进水阀和马桶 - Google Patents
防虹吸进水阀和马桶 Download PDFInfo
- Publication number
- WO2018045963A1 WO2018045963A1 PCT/CN2017/100704 CN2017100704W WO2018045963A1 WO 2018045963 A1 WO2018045963 A1 WO 2018045963A1 CN 2017100704 W CN2017100704 W CN 2017100704W WO 2018045963 A1 WO2018045963 A1 WO 2018045963A1
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- WIPO (PCT)
- Prior art keywords
- siphon
- opening
- water
- cavity
- inlet valve
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/32—Arrangement of inlet valves
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- 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Definitions
- the invention relates to the field of sanitary ware, in particular to an anti-siphon inlet valve and a toilet.
- the existing anti-siphon structure of the inlet valve is mostly provided with an anti-siphon plug with an anti-siphon pad on the water flow channel.
- the pressure water pushes the anti-siphon plug up, so that the anti-siphon pad blocks the anti-siphon
- the air inlet prevents the pressure water from being sprayed outward.
- the anti-siphon plug is reset under the action of gravity, and the anti-siphon air inlet is opened, so that the water flow passage in the water inlet valve is passed through the air inlet port.
- the air area to the upper part of the inner tank of the water tank is kept unobstructed to prevent the water in the water tank from being siphoned into the water inlet pipe when the water inlet pipe is under negative pressure due to sudden water stoppage and the like, so as to prevent the siphon plug from moving up and down.
- the anti-siphon plug has a certain guiding length in the longitudinal direction, and the guide portion and the overflow hole of the existing inlet valve anti-siphon structure
- the upper and lower sides are arranged in the longitudinal direction, so that the structure of the anti-siphoning area of the inlet valve protrudes a lot of the valve body, thereby causing the height of the valve body to be raised, and the inlet valve cannot be adapted to a relatively short height. Water tank Poor.
- an anti-siphon inlet valve includes an inlet body assembly, a longitudinally movable engagement with the inlet body assembly, and an opening and closing of the inlet port provided on the inlet valve.
- the water inlet body assembly comprises a through-flow tube having a lateral portion, the upper wall of the lateral portion of the through-flow tube is provided with an opening, and the inside of the through-flow tube The water can flow out of the draft tube through the opening, and the anti-siphon plug is located between the air inlet and the opening of the draft tube and moves toward the air inlet under the action of the water flowing out of the opening to block the air inlet, and the position of the guiding portion is not high. In the position of the opening.
- the guide is provided on the side of the opening.
- the guiding portion is disposed on the water inlet body assembly, and the anti-siphon plug is in guiding engagement with the water inlet body assembly.
- the upper wall of the lateral portion of the draft tube is provided with a concave receiving cavity
- the anti-siphon plug is movably disposed to receive a cavity is disposed in a bottom wall of the accommodating cavity, and a bottom wall of the accommodating cavity at least one side of the opening is recessed downward to form a cavity, and the cavity is formed in a radial direction of the draft tube.
- the cavity forms a guiding portion, and the anti-siphon plug extends into the cavity to cooperate with the cavity;
- the guiding portion is located in the cavity, and the anti-siphon plug extends into the cavity to cooperate with the guiding portion.
- the peripheral edge of the opening of the draft tube extends upward to form an annular small boss, and the annular small boss is located in the receiving cavity.
- the water in the through-flow pipe flows out from the annular small boss and flows into the receiving cavity through the opening, and the anti-siphon plug It is longitudinally movable in the accommodating cavity and adheres to the annular small boss under the action of its own gravity or separates from the annular small boss under the action of water pressure.
- the anti-siphon plug includes a baffle that can open and close the air inlet and a side wall extending downward from the side of the baffle, the side wall extending into the cavity and guiding with the guiding portion in the cavity or the cavity .
- the guiding portion comprises a guiding rib and a guiding groove, one of the guiding rib and the guiding groove is disposed on the inner wall of the cavity, and the other is disposed on the side wall of the anti-siphon plug.
- two recesses are provided, and the two cavities are symmetrically arranged on both sides of the opening along the radial direction of the draft tube, and two side walls of the baffle are correspondingly disposed.
- the lower wall of the transverse portion of the draft tube is provided with a counterbore at a position corresponding to the opening, and the counterbore forms a guiding portion, and the anti-siphon plug extends into the counterbore to cooperate with the counterbore; or the guiding portion is located at the sinking Inside the hole, the anti-siphon plug extends into the counterbore to match the guide.
- the opening is provided on the bottom wall of the receiving cavity, and the guiding portion is disposed directly below the opening.
- the water inlet body assembly comprises at least one horizontally arranged water inlet passage, and a water stop member with a back pressure diaphragm is arranged between the lateral portion of the water inlet passage and the flow tube, and the water stop member can be used for water pressure
- the lower movement is such that the water inlet passage communicates with or is disconnected from the draft tube, the guide portion is juxtaposed with the lateral portion of the water inlet passage, or the guide portion is lower than the lateral portion of the water inlet passage.
- a toilet comprising:
- the above-mentioned anti-siphon inlet valve, the anti-siphon inlet valve is installed on the water tank to replenish the water tank.
- the water inlet body assembly comprises a through-flow tube having a transverse portion, the upper wall of the transverse portion of the through-flow tube is provided with an opening, the water in the through-flow tube flows out of the through-flow tube through the opening, and the anti-siphon plug is located at the air inlet and the passage
- the position of the opening of the flow tube corresponds to the position of the opening, and the position of the guiding portion is not higher than the position of the opening.
- the horizontal space of the inlet valve saves the longitudinal space, and the integral height of the inlet valve can be reduced while satisfying the requirement of the anti-siphon stopper guiding length, so that the inlet valve has better compatibility, the appearance is more beautiful and the integrity Strong.
- the guiding portion is disposed on the side of the opening, so that the lateral space of the inlet valve can be fully utilized to save the longitudinal space thereof compared with the prior art, and the guiding portion structure is easy to set.
- the lower wall of the transverse portion of the draft tube is provided with a counterbore at a position corresponding to the opening, the counterbore is formed as a guiding portion, or the guiding portion is located in the counterbore, and the guiding portion of the prior art is moved by providing a counterbore Below the opening of the draft tube, the overall height of the inlet valve is greatly reduced, and the structure is simple and compact.
- a recessed receiving cavity is formed in the upper wall of the lateral portion of the draft tube, the opening is disposed on the bottom wall of the receiving cavity, and the bottom wall of the receiving cavity at least one side of the opening is recessed downward to form a cavity, and the cavity is formed.
- the concave cavity forms a guiding portion, and the anti-siphon plug extends into the concave cavity to cooperate with the concave cavity; or the guiding portion is located in the concave cavity, and the anti-siphon plug extends into the concave cavity and the guiding portion
- the overall height of the inlet valve can be further reduced and the structure is more compact.
- the anti-siphon plug includes a baffle that can open and close the air inlet and a side wall extending downward from the side of the baffle.
- the side wall extends into the cavity and is guided and cooperated with the guiding portion in the cavity or the cavity. Keep the anti-siphon plug in balance while preventing yaw and smooth movement.
- Fig. 1 is a schematic view showing the state of the water inlet valve of the first embodiment of the present invention when it enters the water. At this time, the anti-siphon plug moves up away from the annular small boss and closes the air inlet.
- Figure 2 is an enlarged view of A in Figure 1.
- Fig. 3 is a view showing the state of the water inlet valve of the first embodiment of the present invention at the time of intake, at which time the anti-siphon plug is lowered to fit the annular small boss and the air inlet is opened.
- Figure 4 is an enlarged view of B in Figure 3.
- Fig. 5 is a partially sectional perspective view showing the water inlet valve of the first embodiment of the present invention.
- FIG. 6 is a schematic view showing the assembly of the through-flow pipe and the anti-siphon plug of the water inlet body assembly of the water inlet valve according to the embodiment of the present invention.
- Fig. 7 is a perspective view showing the through pipe of the water inlet body assembly of the water inlet valve of the embodiment of the present invention.
- Fig. 8 is a perspective view showing the anti-siphon plug of the water inlet valve of the embodiment of the present invention.
- Fig. 9 is a view showing the state of the water inlet valve of the second embodiment of the present invention when it enters the water. At this time, the anti-siphon plug moves up away from the annular small boss and closes the air inlet.
- Figure 10 is an enlarged view of C in Figure 9.
- Embodiment 1 (the guiding portion is located on the opening side):
- an anti-siphon inlet valve the inlet valve 100 includes an inlet body assembly 1 , a longitudinally movable engagement with the inlet body assembly 1 , and an opening and closing inlet valve 100 .
- the anti-siphon plug 20 of the air inlet 31 and the guiding portion 15 for guiding the longitudinal direction of the anti-siphon plug 20 further include a sleeve 30 sleeved outside the water inlet body assembly 1, and the air inlet 31 is provided On the upper wall of the casing 30, the water inlet body assembly 1 can control the water inlet and the water stop of the water inlet valve 100, and the water inlet body assembly 1 includes a through-flow tube 10 having a lateral portion, the lateral direction of the through-flow tube 10
- the upper wall 17 of the portion is provided with an opening 13 through which water in the through-flow tube 10 can flow out, the anti-siphon plug 20 being located at the air inlet 31 and the through-flow tube 10 Between the openings 13 and corresponding to the position of the opening 13, the position of the guide portion 15 is not higher than the position of the opening 13.
- the guide portion 15 is preferably disposed in the side orientation of the opening 13 (ie, the guide portion 15 and the opening 13 are not on the same axis in the longitudinal direction).
- the guiding portion 15 is disposed on the water inlet body assembly 1
- the anti-siphon plug 20 is in guiding engagement with the water inlet body assembly 1
- the guiding portion 15 can also be disposed on the sleeve 30 .
- the anti-siphon plug 20 is in guiding engagement with the sleeve 30, or the guide portion 15 may be disposed on other components of the inlet valve 100 as long as the guide portion is disposed at the side orientation of the opening 13 and the position of the guide portion 15
- the object of the present invention can be achieved not higher than the position of the opening 13, and the guide portion 15 is specifically disposed on which member, without limitation.
- the upper wall 17 of the lateral portion of the draft tube 10 is provided with a concave receiving cavity 11 , and the opening 13 is disposed at the bottom wall of the receiving cavity 11 , and the air inlet 31 is opposite to the opening. .
- the anti-siphon plug 20 When the anti-siphon inlet valve is closed, the anti-siphon plug 20 is disengaged from the position of the air inlet 31 by gravity to open the air inlet 31.
- the bottom wall of the accommodating cavity 11 on both sides of the opening 13 is recessed downward to form two recesses 12, and the two cavities 12 are juxtaposed on the radial sides of the draft tube 10, and the guiding portion 15 is located in the cavity 12.
- the anti-siphon plug 20 extends into the cavity 12 to cooperate with the guiding portion 15, or the cavity 12 directly forms the guiding portion, and the anti-siphon plug 20 extends into the cavity 12 and is guided by the cavity 12.
- the periphery of the opening 13 of the through-flow tube 10 extends upward to form an annular small boss 14 .
- the annular small boss 14 is located in the accommodating cavity 11 , and the water in the through-flow pipe 10 passes through the opening 13 . Then, it flows out from the annular small boss 14 and flows into the accommodating cavity 11.
- the anti-siphon plug 20 is longitudinally movable in the accommodating cavity 11 and adheres to the annular small boss 14 under the action of its own gravity or under the action of water pressure and ring
- the small boss 14 is separated from each other. Specifically, as shown in FIG. 1 and FIG.
- the guiding portion 15 is disposed on the inner wall of the two recesses 12. Specifically, the two guiding portions 15 are respectively located on the inner wall of the two recesses 12 on the side close to the opening 13. Similarly, the guiding portion 15 is disposed on the side away from the opening 13 The effect is also the same on the inner wall.
- the anti-siphon plug 20 includes a baffle 24 that can open and close the air inlet 31 and a side wall 21 that extends downward from the two sides of the baffle 24, respectively. The side wall 21 extends into the cavity 12 and is in guiding engagement with the guiding portion 15.
- the upper end of the anti-siphon plug 20 is fixedly connected with an anti-siphon pad 23 which can form a seal to the air inlet 31, and the water inlet valve 100 is filled with water.
- the anti-siphon pad 23 seals the air inlet 31, effectively preventing the water from flowing out of the valve body, and the baffle 24 is driven when the water inlet valve 100 stops entering the water.
- the anti-siphon pad 23 is dropped to open the air inlet 31 and is fitted to the annular small boss 14.
- the cavity 12 of the present embodiment is provided with two (i.e., two guide portions 15 are provided), and the two cavity 12 are symmetrically arranged on both sides of the opening 13 along the radial direction of the draft tube 10, and Two side walls 21 of the baffle plate 24 are correspondingly provided.
- the two guiding portions 15 and the two side walls 21 are provided to make the guiding effect on the anti-siphon plug 20 better.
- a plurality of cavities 12, a plurality of guide portions 15, and a plurality of side walls 21 may be provided, and may be selected as needed.
- the guiding portion 15 is a guiding rib or a guiding groove
- the anti-siphoning plug 20 is correspondingly provided with a guiding groove or a guiding rib.
- the guiding portion 15 is a guiding rib integrally formed with the inner wall of the cavity 12.
- the inner sides of the two side walls 21 of the anti-siphon plug 20 are respectively provided with guiding grooves 22 which are guided and fitted with the guiding ribs.
- the water inlet body assembly 1 includes a water stop member 19 with a back pressure diaphragm 19, and the water stop member 19 can be moved left and right under the action of water pressure and back pressure to allow the inlet valve to enter or stop the water.
- a water stop member 19 with a back pressure diaphragm 19
- the water stop member 19 can be moved left and right under the action of water pressure and back pressure to allow the inlet valve to enter or stop the water.
- the inflow water flow of the present embodiment is aligned with the middle portion of the water stop member 19 and flows out from the outer ring of the water stop member 19,
- the guide portion 15 of the present embodiment is disposed in the side orientation of the opening 13 to be particularly suitable for the water passage structure of the above-described water inlet valve, and the guide portion 15 can be avoided while ensuring that the position of the guide portion 15 is not higher than the position of the opening 13. The effect of moving down on the influent water flow.
- the water inlet body assembly 1 includes at least one horizontally arranged water inlet passage 40, and a water stop member with a back pressure diaphragm is disposed between the lateral portion of the water inlet passage 40 and the draft tube 10. 19.
- the water stop member 19 is movable under the action of water pressure to connect or disconnect the water inlet passage 40 with the draft tube 10, and the guide portion is juxtaposed with the lateral portion of the water inlet passage 40.
- the two guide portions 15 are respectively located on both sides of the lateral portion of the water inlet passage 40.
- the guide portion is lower than the lateral portion of the water inlet passage 40.
- the present embodiment also provides a toilet including a water tank and the above-described anti-siphon inlet valve for hydrating the water tank.
- Embodiment 2 (the guide is located directly below the opening):
- the difference between this embodiment and the first embodiment is that the guide portion 15 of the present embodiment is not disposed at the side orientation of the opening 13 of the draft tube 10, but is disposed directly below the opening 13.
- a counterbore is provided downwardly at a position corresponding to the opening 13 of the lower wall 18 of the lateral portion of the draft tube 10, the counterbore forming the guiding portion 15, and the anti-siphon plug 20 is extended
- the counterbore is matched with the counterbore; or the guiding portion 15 is located in the counterbore, and the anti-siphon plug 20 extends into the counterbore to cooperate with the guiding portion.
- the prior art guide portion 15 is moved below the opening 13 of the draft tube, thereby greatly reducing the overall height of the inlet valve, and the structure is simple and compact.
- the water path structure inside the water inlet body assembly 1 is different from that in the first embodiment.
- the inflow water flow of the present embodiment is aligned with the outside of the water stop member 19.
- the ring, and flowing out from the middle of the water stop member 19, the guide portion 15 of the present embodiment is disposed directly below the opening 13 and is particularly suitable for the embodiment.
- the waterway structure of the inlet valve makes the guiding structure simple and compact.
- the structure in which the guide portion 15 of the first embodiment is disposed at the side orientation of the opening 13 is also applicable to the water inlet valve waterway structure of the second embodiment, and the second embodiment of the guide portion 15 is disposed directly below the opening 13.
- the structure is also applicable to the water inlet valve structure of the first embodiment.
Abstract
一种防虹吸进水阀(100)，进水阀(100)包括进水本体组件(1)、与进水本体组件(1)纵向活动配合并可开闭进水阀(100)上设有的进气口(31)的防虹吸塞(20)以及对防虹吸塞(20)纵向方向进行导向的导向部(15)，进水本体组件(1)包括一具有横向部的通流管(10)，通流管(10)的横向部之上壁(17)设有开口(13)，通流管(10)内的水能够经由开口(13)流出通流管(10)，防虹吸塞(20)位于进气口(31)与通流管(10)的开口(13)之间并在开口(13)流出的水的作用下朝进气口(31)移动来堵塞进气口(31)，导向部(15)的位置不高于开口(13)的位置。还公开一种具有防虹吸进水阀(100)的马桶。
Description
本发明涉及卫浴领域，具体涉及一种防虹吸进水阀和马桶。
现有进水阀防虹吸结构大都是在水流通道上设置装有防虹吸垫的防虹吸塞，进水阀在进水时，压力水推动防虹吸塞上移，使防虹吸垫堵住防虹吸进气口防止压力水向外喷出，在进水阀停止进水后，防虹吸塞在重力作用下复位，防虹吸进气口被打开，从而通过进气口使得进水阀内的水流通道到水箱内腔上部的空气区域保持畅通以防止当进水管路因突然停水等原因发生负压时水箱内的水被虹吸到进水管路内而污染水源，为使防虹吸塞在上下运动过程中不至于出现卡死的现象以保证其可顺利开闭防虹吸进气口，要求防虹吸塞在纵向上具有一定的导向长度，而现有进水阀防虹吸结构的导向部和过流孔一般在纵向上都是上下排布，这样使得进水阀的防虹吸区域的结构凸出阀体很多，从而导致加高了阀体的整体高度，将使得进水阀不能适配较矮高度的水箱，通配性差。
发明内容
本发明的目的是提出一种防虹吸进水阀和马桶，其克服了背景技术所存在的不足。本发明解决其技术问题所采用的技术方案是：
根据本申请的一个方面，提供了一种防虹吸进水阀，进水阀包括进水本体组件、与进水本体组件纵向活动配合并可开闭进水阀上设有的进气口的防虹吸塞以及对防虹吸塞纵向方向进行导向的导向部，可选地：进水本体组件包括一具有横向部的通流管，通流管的横向部之上壁设有开口，通流管内的水能够经由开口流出通流管，防虹吸塞位于进气口与通流管的开口之间并在开口流出的水的作用下朝进气口移动来堵塞进气口，导向部的位置不高于开口的位置。
可选地，导向部设于开口的侧部。
可选地，导向部设于进水本体组件上，防虹吸塞与进水本体组件导向配合。
可选地，通流管的横向部的上壁设有凹入的容纳腔，防虹吸塞可移动地设在容纳
腔内，开口设于容纳腔的底壁，位于开口至少一侧的容纳腔底壁向下凹陷形成凹腔，凹腔形成于通流管的径向方向上，
凹腔形成导向部，防虹吸塞伸入凹腔内与凹腔相配合；或
导向部位于凹腔内，防虹吸塞伸入凹腔内与导向部相配合。
可选地，通流管的开口周缘向上延伸形成一环形小凸台，环形小凸台位于容纳腔内，通流管内的水经开口后从环形小凸台流出并流入容纳腔，防虹吸塞在容纳腔内纵向活动并在自身重力作用下与环形小凸台相贴合或在水压作用下与环形小凸台相分离。
可选地，防虹吸塞包括一可开闭进气口的挡板及从挡板侧边向下延伸的侧壁，侧壁伸入凹腔并与凹腔或凹腔内的导向部导向配合。
可选地，导向部包括导向筋条和导向槽，导向筋条和导向槽中的一个设置在凹腔的内壁上，另一个设在防虹吸塞的侧壁上。
可选地，凹腔设有两个，两凹腔沿通流管的径向对称布置在开口的两侧，挡板的侧壁对应设有两个。
可选地，通流管的横向部之下壁对应开口的位置向下设有一沉孔，沉孔形成导向部，防虹吸塞伸入沉孔内与沉孔相配合；或者，导向部位于沉孔内，防虹吸塞伸入沉孔内与导向部相配合。
可选地，开口设在容纳腔的底壁上，导向部设在开口的正下方。
可选地，进水本体组件包括至少一段横向布置的进水通道，进水通道的横向部分与通流管之间设有带背压膜片的止水件，止水件可在水压作用下移动以使进水通道与通流管相连通或相切断，导向部与进水通道的横向部分并列布置，或，导向部低于进水通道的横向部分。
根据本申请的另一方面，还提供了一种马桶，马桶包括：
水箱；以及
上述的防虹吸进水阀，防虹吸进水阀安装在水箱上，用以对水箱进行补水。
本技术方案与背景技术相比，它具有如下优点：
1.进水本体组件包括一具有横向部的通流管，通流管的横向部之上壁设有开口，通流管内的水经由开口流出通流管，防虹吸塞位于进气口与通流管的开口之间并与开口的位置相对应，导向部的位置不高于开口的位置，采用上述结构设计，可以充分利
用进水阀的横向空间而节省其纵向空间，在满足防虹吸塞导向长度要求的同时，可降低进水阀的整体高度，从而使进水阀通配性更好，外形更美观、整体性强。
2.导向部设于开口之侧方位，这样，相对于现有技术而言，可以充分利用进水阀的横向空间而节省其纵向空间，并且导向部结构容易设置。
3.通流管的横向部之下壁对应开口的位置向下设有一沉孔，沉孔形成导向部，或者，导向部位于沉孔内，通过设置沉孔，将现有技术的导向部移至通流管开口之下，从而大大降低进水阀的整体高度，结构简单、紧凑。
4.通过在通流管的横向部之上壁设有一凹入的容纳腔，开口设于容纳腔的底壁，位于开口至少一侧的容纳腔底壁向下凹陷形成凹腔，凹腔形成于通流管的径向方向上，凹腔形成导向部，防虹吸塞伸入凹腔内与凹腔相配合；或者，导向部位于凹腔内，防虹吸塞伸入凹腔内与导向部相配合，可以进一步降低进水阀的整体高度，结构更紧凑。
5.防虹吸塞包括一可开闭进气口的挡板及从挡板侧边向下延伸的侧壁，侧壁伸入凹腔并与凹腔或凹腔内的导向部导向配合，可使防虹吸塞活动时保持平衡，防止偏摆，运动更顺畅自如。
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了本发明实施例一的进水阀在进水时的状态示意图，此时，防虹吸塞上移而远离环形小凸台且关闭进气口。
图2是图1中A的放大图。
图3示出了本发明实施例一的进水阀在进气时的状态示意图，此时，防虹吸塞回落而贴合环形小凸台且打开进气口。
图4是图3中B的放大图。
图5示出了本发明实施例一的进水阀部分剖视示意图。
图6示出了本发明实施例一进水阀的进水本体组件的通流管与防虹吸塞的装配示意图。
图7示出了本发明实施例一进水阀的进水本体组件的通流管的立体示意图。
图8示出了本发明实施例一进水阀的防虹吸塞的立体示意图。
图9示出了本发明实施例二的进水阀在进水时的状态示意图，此时，防虹吸塞上移而远离环形小凸台且关闭进气口。
图10是图9中C的放大图。
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。
实施例一(导向部位于开口侧方位)：
如图1至图8所示，一种防虹吸进水阀，进水阀100包括进水本体组件1、与所述进水本体组件1纵向活动配合并可开闭进水阀100上设有的进气口31的防虹吸塞20以及对所述防虹吸塞20纵向方向进行导向的导向部15，还包括套设于进水本体组件1外的套管30，所述进气口31设于套管30的上壁，进水本体组件1可控制进水阀100的进水和止水，进水本体组件1包括一具有横向部的通流管10，所述通流管10的横向部之上壁17设有开口13，所述通流管10内的水能够经由所述开口13流出所述通流管，所述防虹吸塞20位于进气口31与所述通流管10的开口13之间并与所述开口13的位置相对应，导向部15的位置不高于开口13的位置。本实施例优选将所述导向部15设于所述开口13的侧方位(即导向部15与开口13纵向上不在同一轴线上)。采用上述结构设计，可以充分利用进水阀100的横向空间，节省了其纵向空间，在满足防虹吸塞20导向长度要求的同时，可降低进水阀100的整体高度，从而使进水阀100通配性更好，外形更美观、整体性强。
本实施例中，所述导向部15设于所述进水本体组件1上，所述防虹吸塞20与所述进水本体组件1导向配合，所述导向部15还可以设置在套管30上，防虹吸塞20与套管30导向配合，或者，导向部15还可以设置在进水阀100的其他部件上，只要使导向部设于所述开口13的侧方位并且导向部15的位置不高于开口13的位置，均可实现本发明的目的，而导向部15具体设置于哪个部件上，不受限制。
本实施例中，所述通流管10的横向部的上壁17设有一凹入的容纳腔11，所述开口13设于所述容纳腔11的底壁，进气口31与开口相对设置。
在防虹吸进水阀打开时，通流管10内的水流向开口13，防虹吸塞20在开口13流出的水的作用下向位于防虹吸塞20的上方的进气口运动，以封堵进气口31，以起
到防止水从进气口流出。
当防虹吸进水阀关闭后，防虹吸塞20在重力的作用下脱离封堵进气口31的位置，以打开进气口31。
位于开口13两侧的容纳腔11底壁向下凹陷形成两凹腔12，两凹腔12并列布置于所述通流管10的径向两侧，导向部15位于所述凹腔12内，防虹吸塞20伸入凹腔12内与导向部15相配合，或者，也可以是凹腔12直接形成所述导向部，所述防虹吸塞20伸入凹腔12内与凹腔12相导向配合。
本实施例中，所述通流管10的开口13周缘向上延伸形成一环形小凸台14，所述环形小凸台14位于容纳腔11内，所述通流管10内的水经开口13后从环形小凸台14流出并流入容纳腔11，所述防虹吸塞20在容纳腔11内纵向活动并在自身重力作用下与环形小凸台14相贴合或在水压作用下与环形小凸台14相分离，具体为，如图1和图2所示，进水阀100进水时，防虹吸塞20在水压的作用下向上移动与环形小凸台14相分离并关闭进气口31，此时，水流可从环形小凸台14流出并流至下游，且不会从进气口31向外喷出；如图3和图4所示，进水阀100停止进水时，防虹吸塞20在自身重力作用下向下移动与环形小凸台14相贴合并打开进气口31，此时，空气可由进气口31进入进水阀内从而打破由进水管突然停水等原因造成的负压以阻断虹吸，此防虹吸原理为现有技术，这里不再赘述，本实施例中，导向部15设于两凹腔12的内壁上，具体为，两导向部15分别位于所述两凹腔12靠近开口13一侧的内壁上，同样的，导向部15设置于远离开口13一侧的内壁上，效果也是一样的，本实施例中，防虹吸塞20包括一可开闭进气口31的挡板24及从挡板24两侧分别向下延伸的侧壁21，所述两侧壁21伸入凹腔12并与导向部15导向配合，本实施例中，防虹吸塞20的上端固定连接一可对进气口31形成密封的防虹吸垫23，进水阀100进水时，防虹吸塞20在水压作用下向上移动，进而使防虹吸垫23对进气口31进行密封，有效防止水流流出阀体，进水阀100停止进水时，所述挡板24带动防虹吸垫23下落而打开进气口31并与环形小凸台14相贴合。
如上所述，本实施例的凹腔12设有两个(即导向部15设有两个)，两凹腔12沿所述通流管10的径向对称布置在开口13的两侧，而挡板24的侧壁21对应设有两个，这样，设置两导向部15和两侧壁21可使得对防虹吸塞20的导向效果更好，当然如果只设置一个凹腔12、一个导向部15及一个侧壁21也是可以实现导向作用的，此
外，也可以设置多个凹腔12、多个导向部15及多个侧壁21，具体根据需要进行选择。
本实施例中，导向部15为导向筋条或导向槽，防虹吸塞20对应设有导向槽或导向筋条，具体为，导向部15为与凹腔12的内壁一体成型设置的导向筋条，防虹吸塞20的两侧壁21的内侧分别设有与导向筋条导向配合的导向槽22。
本实施例中，进水本体组件1包括带背压膜片的止水件19，止水件19在水压和背压的作用下可左右移动以使进水阀进水或止水，此为现有技术，这里不详细说明，如图1和图2中的箭头所指示的，本实施例的进水水流对准止水件19的中部，并从止水件19的外圈流出，本实施例的导向部15设置在开口13的侧方位尤其适用于上述进水阀的水路结构，在保证导向部15的位置不高于所述开口13的位置的同时，还能避免导向部15下移对进水水流的影响。
如图4和图5所示，进水本体组件1包括至少一段横向布置的进水通道40，进水通道40的横向部分与通流管10之间设有带背压膜片的止水件19，止水件19可在水压作用下移动以使进水通道40与通流管10相连通或相切断，导向部与进水通道40的横向部分并列布置。如图5所示，两个导向部15分别位于进水通道40的横向部分的两侧。
当然，还可以优选地导向部低于进水通道40的横向部分。
根据本申请的另一方面，本实施例还提供了一种马桶，该马桶包括水箱和上述的防虹吸进水阀，防虹吸进水阀用于向水箱内补水。
实施例二(导向部位于开口正下方)：
如图9和图10所示，本实施例与实施例一的区别是：本实施例的导向部15不设置在通流管10的开口13的侧方位，而是设于开口13的正下方位置，具体是，在通流管10的横向部的下壁18对应所述开口13的位置向下设有一沉孔，所述沉孔形成所述导向部15，所述防虹吸塞20伸入所述沉孔内与所述沉孔相配合；或者，所述导向部15位于所述沉孔内，所述防虹吸塞20伸入所述沉孔内与所述导向部相配合，本实施例通过设置沉孔，将现有技术的导向部15移至通流管开口13的下方，从而大大降低进水阀的整体高度，结构简单、紧凑。
此外，本实施例中，进水本体组件1内部的水路结构不同于实施例一，如图9和图10中的箭头所指示的，本实施例的进水水流对准止水件19的外圈，并从止水件19的中部流出，本实施例的导向部15设置在开口13之正下方位置尤其适用于本实施例
的进水阀的水路结构，这样可使得导向结构简单，紧凑。
本实施例其余未述的结构与实施例一相同，这里不再赘述。
另外，需要说明的是，实施例一导向部15设置在开口13的侧方位的结构也适用于实施例二的进水阀水路结构，而实施例二导向部15设置在开口13之正下方位置的结构也同样适用于实施例一的进水阀水路结构。
最后应当说明的是以上实施例仅用以说明本发明的技术方案而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本发明技术方案的精神，其均应涵盖在本发明请求保护的技术方案范围当中。
Claims (12)
- 一种防虹吸进水阀，进水阀包括进水本体组件、与所述进水本体组件纵向活动配合并可开闭进水阀上设有的进气口的防虹吸塞以及对所述防虹吸塞纵向方向进行导向的导向部，其特征在于：所述进水本体组件包括一具有横向部的通流管，所述通流管的横向部之上壁设有开口，所述通流管内的水能够经由所述开口流出所述通流管，所述防虹吸塞位于所述进气口与所述通流管的开口之间并在所述开口流出的水的作用下朝进气口移动来堵塞所述进气口，所述导向部的位置不高于所述开口的位置。
- 根据权利要求1所述的一种防虹吸进水阀，其特征在于，所述导向部设于所述开口的侧部。
- 根据权利要求1所述的一种防虹吸进水阀，其特征在于，所述导向部设于所述进水本体组件上，所述防虹吸塞与所述进水本体组件导向配合。
- 根据权利要求2所述的一种防虹吸进水阀，其特征在于，所述通流管的横向部的上壁设有凹入的容纳腔，所述防虹吸塞可移动地设在所述容纳腔内，所述开口设于所述容纳腔的底壁，位于所述开口至少一侧的所述容纳腔底壁向下凹陷形成凹腔，所述凹腔形成于所述通流管的径向方向上，所述凹腔形成所述导向部，所述防虹吸塞伸入所述凹腔内与所述凹腔相配合；或所述导向部位于所述凹腔内，所述防虹吸塞伸入所述凹腔内与所述导向部相配合。
- 根据权利要求4所述的一种防虹吸进水阀，其特征在于，所述通流管的开口周缘向上延伸形成一环形小凸台，所述环形小凸台位于所述容纳腔内，所述通流管内的水经所述开口后从所述环形小凸台流出并流入所述容纳腔，所述防虹吸塞在所述容纳腔内纵向活动并在自身重力作用下与所述环形小凸台相贴合或在水压作用下与所述环形小凸台相分离。
- 根据权利要求4所述的一种防虹吸进水阀，其特征在于，所述防虹吸塞包括一可开闭所述进气口的挡板及从所述挡板侧边向下延伸的侧壁，所述侧壁伸入所述凹腔并与所述凹腔或凹腔内的导向部导向配合。
- 根据权利要求6所述的一种防虹吸进水阀，其特征在于，所述导向部包括导向筋条和导向槽，所述导向筋条和所述导向槽中的一个设置在所述凹腔的内壁上，另一 个设在所述防虹吸塞的侧壁上。
- 根据权利要求6所述的一种防虹吸进水阀，其特征在于，所述凹腔设有两个，所述两凹腔沿所述通流管的径向对称布置在所述开口的两侧，所述挡板的侧壁对应设有两个。
- 根据权利要求1所述的一种防虹吸进水阀，其特征在于，所述通流管的横向部之下壁对应所述开口的位置向下设有一沉孔，所述沉孔形成所述导向部，所述防虹吸塞伸入所述沉孔内与所述沉孔相配合；或者，所述导向部位于所述沉孔内，所述防虹吸塞伸入所述沉孔内与所述导向部相配合。
- 根据权利要求4所述的一种防虹吸进水阀，其特征在于，所述开口设在容纳腔的底壁上，所述导向部设在开口的正下方。
- 根据权利要求1所述的一种防虹吸进水阀，其特征在于，所述进水本体组件包括至少一段横向布置的进水通道，所述进水通道的横向部分与所述通流管之间设有带背压膜片的止水件，所述止水件可在水压作用下移动以使所述进水通道与所述通流管相连通或相切断，所述导向部与所述进水通道的横向部分并列布置，或，所述导向部低于所述进水通道的横向部分。
- 一种马桶，其特征在于，包括：水箱；以及权利要求1所述的防虹吸进水阀，所述防虹吸进水阀安装在所述水箱上，用以对水箱进行补水。
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