WO2021026727A1 - 一种防虹吸马桶水箱压力止水进水阀 - Google Patents

一种防虹吸马桶水箱压力止水进水阀 Download PDF

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Publication number
WO2021026727A1
WO2021026727A1 PCT/CN2019/100213 CN2019100213W WO2021026727A1 WO 2021026727 A1 WO2021026727 A1 WO 2021026727A1 CN 2019100213 W CN2019100213 W CN 2019100213W WO 2021026727 A1 WO2021026727 A1 WO 2021026727A1
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Prior art keywords
water
stop
valve
pressure
water outlet
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PCT/CN2019/100213
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English (en)
French (fr)
Inventor
张子鹏
刘永茂
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厦门立业卫浴工业有限公司
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Priority to PCT/CN2019/100213 priority Critical patent/WO2021026727A1/zh
Publication of WO2021026727A1 publication Critical patent/WO2021026727A1/zh

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30Valves 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
    • E03D1/32Arrangement of inlet valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side

Definitions

  • the invention belongs to a pressure stop water inlet valve for a toilet tank, and particularly relates to an anti-siphon toilet tank pressure stop water inlet valve.
  • the prior art toilet tank pressure stop water inlet valve mainly uses the water pressure in the domestic water pipe network to achieve water inflow or blocking, including valve body, pressure stop valve, buoyancy control mechanism, water inlet pipe, pressure water stop
  • the valve is installed on the valve body, the valve body is connected to the water inlet pipe, and the buoyancy control mechanism makes the water pressure or pressure relief inside the pressure stop valve to realize the on and off of the water flow.
  • the pressure stop valve of the toilet tank is divided into back pressure valve and needle valve according to the different structure of the pressure stop valve.
  • the CN202274155U document discloses a toilet tank back pressure inlet valve, which includes a valve body 1', a pressure stop valve 2', a buoyancy control mechanism 3', an inner core pipe 23', and a water inlet pipe 4', the valve body 1'includes a top containing cavity and a lower sleeve 18'.
  • the valve body 1' is sleeved on the outside of the inlet pipe 4'through the sleeve 18', and the water outlet end 231 of the inner core pipe 23' 'Protruding from the bottom of the containing cavity, the end surface of the water outlet 231' of the inner core tube 23' forms a water stop surface, and the water inlet 232' of the inner core tube 23' is sealed and inserted into the water inlet pipe 4'through the containing cavity to form water inlet
  • the space between the passage 11', the sleeve 18' and the inner core pipe 23' and the water inlet pipe 4' forms a water outlet channel 12', the water outlet 121' of the water outlet channel 12' extends to the bottom of the toilet tank, and the pressure stop valve 2'is
  • the back pressure valve includes an upper cover 21', a rubber water stop cushion 22', and a back pressure cushion 25'.
  • the rubber water stop cushion 22' is arranged above the water outlet 231' of the inner core tube 23', and the upper cover 21' stops the rubber
  • the water cushion 22' is sealed in the accommodating cavity of the valve body 1’, a water-passing cavity 19’ is formed between the rubber water-stopping cushion 22’ and the bottom of the accommodating cavity, and a water-passing cavity 19’ is formed between the rubber water-stopping cushion 22’ and the upper cover 21’
  • the pressure chamber 24' and the pressure chamber 24' respectively have a water inlet hole 241' and a pressure relief hole 242'.
  • the water inlet hole 241' is provided on the guide post 211' of the upper cover 21' and communicates with the water inlet channel 11'
  • the guide post 211' penetrates the rubber water stop cushion 22'
  • the pressure relief hole 242' is provided on the upper cover 21'
  • the buoyancy control mechanism 3' includes a water tank 31', a floating bucket 32', and a connection
  • the rod 33', the swing rod 34', the back pressure pad 25' is provided on the swing rod 34' corresponding to the pressure relief hole 242', one end of the swing rod 34' is pivoted on the upper cover 21', and the other of the swing rod 34'
  • One end is connected to the floating bucket 32' through the connecting rod 33'
  • the floating bucket 32' is placed in the water tank 31'
  • the water tank 31' is sleeved on the sleeve 18'
  • the buoyancy control mechanism 3' controls the pressure relief hole 242' to open and close .
  • the water inlet pipe 4' is vertically installed in the toilet tank (not shown in the figure), and the water inlet pipe 4'is connected to the domestic water pipe network.
  • the pressure stop valve 2' is higher than the highest water level of the toilet tank. Avoid siphoning, and prevent the water in the toilet tank from entering the domestic water pipe network through the water outlet channel 12', the water passage 19', and the water inlet channel 11' in sequence.
  • the toilet tank pressure stop water inlet valve needs to be anti-siphon design, as shown in Figure 1, because the sleeve 18' at the lower part of the valve body 1'is sleeved on the inlet pipe 4'.
  • the space between the sleeve 18' and the inner core tube 23' and the water inlet pipe 4' forms a water outlet channel 12', so the water path of the water inlet valve is directly bent after the water inlet channel 11' extends upward through the water cavity 19' It extends downward with the water outlet channel 12', the outlet 121' of the water outlet channel 12' extends to the bottom of the toilet tank, and the water outlet 121' of the water outlet channel 12' is far from the toilet tank with the highest water level set.
  • the water outlet channel 12' and A water seal is easily formed between the bottom of the toilet tank. Therefore, an anti-siphon pad 5'is provided in the water passage 19' between the water outlet channel 12' and the water inlet channel 11'.
  • an anti-siphon pad 5' is provided in the water passage 19' between the water outlet channel 12' and the water inlet channel 11'.
  • the inventor of the present invention has improved the water outlet channel of the pressure stop water inlet valve of the toilet tank in view of the above-mentioned shortcomings.
  • the purpose of the present invention is to provide an anti-siphon toilet tank water tank pressure stop water inlet valve, the water in the water inlet valve in the water inlet pipe will not produce a water seal when the water in the water inlet pipe suddenly loses pressure, so as to prevent the generation of siphon.
  • An anti-siphon toilet tank pressure stop water inlet valve comprising a valve seat, a pressure stop valve, a buoyancy control mechanism, an inlet channel, and a water outlet channel.
  • the valve seat forms an accommodation cavity, and the bottom of the accommodation cavity is provided with water inlet
  • the water outlet end of the channel and the end surface of the water outlet end form a water stop surface.
  • the pressure water stop valve includes an upper cover and a rubber water stop pad. The upper cover seals the rubber water stop pad in the containing cavity. The rubber water stop pad is placed above the water stop surface.
  • a water passage cavity is formed between the water stop cushion and the bottom of the accommodating cavity. The water inlet of the water outlet channel communicates with the water passage cavity.
  • the water outlet channel extends upwards along the side wall of the valve seat, and the water outlet of the water outlet channel is exposed outside the upper edge of the valve seat ,
  • a pressure cavity is formed between the rubber water stop cushion and the upper cover, and the buoyancy control mechanism controls the water pressure of the pressure cavity to deform the rubber water stop cushion to block or leave the water stop surface to realize the water flow of the inlet valve.
  • the rubber water stopper has a water inlet hole and a pressure relief hole respectively.
  • the water inlet hole communicates the pressure chamber with the water outlet end of the water inlet channel, and the buoyancy control mechanism controls the pressure relief hole to open or close to control the water in the pressure chamber.
  • the pressure causes the rubber water stop cushion to deform and block or leave the water stop surface to cut off the water flow of the inlet valve.
  • the water inlet channel is formed by a water inlet pipe, which is arranged at the bottom of the valve seat and is integrally formed with the valve seat.
  • the water inlet channel is formed by a water inlet pipe, which is connected to the bottom of the valve seat and formed separately from the valve seat.
  • water inlet pipe is clamped or screwed to the bottom of the valve seat.
  • a ferrule is nested in the side wall of the valve seat, an accommodating cavity is formed in the ferrule, and the water outlet channel is formed between the inner side of the side wall of the valve seat and the ferrule.
  • the water outlet of the water outlet channel is provided with an inclined surface, so that the water outlet of the water outlet channel faces the outside of the valve seat.
  • the water outlet of the water outlet channel is an oblique channel, and the water outlet of the water outlet channel faces the outside of the valve seat.
  • the water outlet of the water outlet channel is higher than the water stop surface of the water outlet port of the water inlet channel.
  • the pressure water stop valve is a back pressure valve, including an upper cover, a rubber water stop pad, and a back pressure pad.
  • the water inlet hole is provided on the guide post of the upper cover, and the guide post penetrates the rubber water stop The said pressure relief hole is arranged on the upper cover.
  • the pressure water stop valve is a needle valve, which includes an upper cover, a rubber water stop pad, and a stainless steel needle.
  • the rubber water stop pad includes a sealing ring, a water stop seat, and a needle sleeve.
  • the water stop seat is a circular ring and the water stop seat.
  • the bottom part is the blocking surface
  • the middle part of the water stop is provided with a needle sleeve
  • the needle sleeve is provided with a longitudinal through hole along the axis
  • the upper section of the longitudinal through hole is a pressure relief hole
  • the middle section corresponding to the longitudinal through hole is on the side wall of the needle sleeve
  • the lower part of the needle sleeve is elastically connected to the inner side of the ring, and the sealing ring is elastically connected to the outer side of the water stop.
  • the upper section of the stainless steel needle is a polished rod tightly matched with the pressure relief hole.
  • the middle section is a necking, and the lower section of the stainless steel needle is provided with a water tank.
  • the lower part of the needle sleeve is elastically connected with the upper or lower inner edge of the ring.
  • the water outlet channel of the traditional water inlet valve is formed by the space between the sleeve and the inner core tube and the water inlet pipe, and the water path extends downward, that is, the water of the traditional water inlet valve enters from the water inlet channel After the water stop overflows, and then passes through the water cavity, it continues to flow downward along the water outlet channel.
  • This case is modified from the usual design of those skilled in the art.
  • the main improvement is that the water outlet channel extends upwards along the side wall of the valve seat, and the outlet of the water outlet channel is exposed Outside the upper edge of the valve seat, the water path of the water outlet channel continues to extend upward, so that the outlet position of the water outlet channel is higher than the water stop surface of the water outlet port of the water inlet channel and also higher than the highest water level set by the toilet tank.
  • Figure 1 is a side sectional view of a conventional bottom inlet water inlet valve
  • Figure 2 is a partial enlarged view of Figure 1;
  • Figure 3 is a perspective view of the present invention
  • Figure 4 is a longitudinal sectional view of the present invention.
  • Figure 5 is a second longitudinal sectional view of the present invention.
  • Figure 6 is a partial enlarged view of Figure 4.
  • Figure 7 is an exploded view 1 of Figure 6;
  • Figure 8 is the second exploded view of Figure 6;
  • FIG. 9 is a working principle diagram of the present invention.
  • Figure 10 is an exploded view of the threaded connection between the inlet valve seat and the inlet pipe of the present invention.
  • FIG 11 is a second working principle diagram of the present invention.
  • Figure 12 is a partial cross-sectional view of the present invention in a water-stop state
  • Figure 13 is a partial cross-sectional view of the water intake state of the present invention.
  • Figure 14 is a partial cross-sectional view of the water outlet state of the present invention.
  • Figure 15 is a combined view of the rubber water-stop pad and the stainless steel needle of the needle valve of the present invention.
  • 16 is a cross-sectional view of the rubber water stop gasket and stainless steel needle combination of the needle valve of the present invention.
  • Figure 17 is an exploded view of the rubber water stopper and the stainless steel needle of the needle valve of the present invention.
  • Figure 18 is a perspective view of the rubber waterstop of the needle valve of the present invention.
  • Figure 19 is a cross-sectional view of the rubber waterstop of the needle valve of the present invention.
  • Figure 20 is a two-dimensional view of the rubber waterstop of the needle valve of the present invention.
  • Figure 21 is a second cross-sectional view of the rubber waterstop of the needle valve of the present invention.
  • 22 is a cross-sectional view of the rubber water-stop pad and stainless needle combination of the needle valve of the present invention.
  • Figure 23 is a partial cross-sectional view of the present invention in a water-stop state
  • Figure 24 is a partial cross-sectional view of the water outlet state of the present invention.
  • an anti-siphon toilet tank pressure stop water inlet valve includes a valve seat 1, a pressure stop valve 4, a buoyancy control mechanism 2, a water inlet channel 3, a water outlet channel 5, and a valve seat 1.
  • An accommodating cavity 10 is formed on the upper part.
  • the bottom 11 of the accommodating cavity 10 is provided with a water outlet end 31 of the water inlet channel 3.
  • the end surface of the water outlet end 31 forms a water stop surface 32.
  • the pressure water stop valve 4 includes an upper cover 41 and a rubber water stop gasket. 42.
  • the upper cover 41 seals the rubber water-stop pad 42 in the accommodating cavity 10, the rubber water-stop pad 42 is placed above the water-stop surface 32, and water is formed between the rubber water-stop pad 42 and the bottom 11 of the accommodating cavity 10.
  • the water inlet 51 of the water outlet channel 5 communicates with the water passage cavity 12
  • the water outlet channel 5 extends upwards along the side wall of the valve seat 1
  • the water outlet 52 of the water outlet channel 5 is exposed on the outer side 14 of the upper edge of the valve seat 1
  • rubber stop A pressure cavity 43 is formed between the water cushion 42 and the upper cover 41
  • the buoyancy control mechanism 2 controls the water pressure of the pressure cavity 43 to deform and block the rubber water stop cushion 42 or leave the water stop surface 32 to cut off the water flow of the inlet valve.
  • the water inlet channel 3 is directly formed by the water inlet pipe 33, eliminating the need for the existing inner core pipe, and replacing the inner core pipe with the water inlet pipe 33, so that the water inlet pipe 33 has an inner core
  • the pipe function is to directly form a water stop surface 32 on the end surface of the water outlet end 31 of the water inlet channel 3, which reduces the installation of the inner core pipe in the valve seat 1 and reduces unnecessary water leakage points.
  • the water inlet pipe 33 is arranged at the bottom of the valve seat 1, and is integrally formed with the valve seat 1. Of course, it can also be formed separately from the valve seat 1.
  • the water inlet pipe 33 is screwed on the bottom of the valve seat 1 (as shown in Figure 10), the same is true According to product design requirements, the water inlet pipe 33 can also be clamped to the bottom of the valve seat 1. Of course, the valve seat 1 cannot be moved on the inlet pipe 33, and the height cannot be adjusted. As a result, the pressure stop valve 4 cannot be adjusted according to the height of the toilet tank and the distance between the bottom of the toilet tank, but as long as the inlet pipe 33 is set in height Properly, it can meet the installation needs of common toilet tanks.
  • the water outlet 52 of the water outlet channel 5 is set as a slope, so that the water outlet 52 of the water outlet channel 5 faces the upper edge outer side 14 of the valve seat 1.
  • the water outlet channel 5 The water outlet 52 of the water outlet 52 can also be an oblique channel, so that the water from the water outlet 52 of the water outlet channel 5 flows downstream into the toilet tank along the upper edge 14 of the valve seat 1, so that the water will not splash randomly and can reduce the inlet Water noise.
  • the water outlet 52 of the water outlet channel 5 is exposed on the outer side 14 of the upper edge of the valve seat 1, and is not a relatively closed empty pipe. Water flows on the outer side of the valve seat 1 and the water inlet pipe 33 and does not form resonance. The water inlet noise will also be reduced.
  • a draft tube 6 is sleeved on the water inlet pipe 33.
  • the upper end 61 of the draft tube 6 is in the shape of a funnel and is connected to the water outlet 52 of the water outlet channel 5.
  • the buoyancy control mechanism 2 is sheathed on the draft tube 6.
  • the pressure stop valve 4 is higher than the highest water level of the toilet tank to avoid siphoning, and to prevent the water in the toilet tank from entering the domestic water pipe network through the water outlet channel 11 and the water inlet pipe 33.
  • the present invention not only retains the design that the pressure stop valve 4 is higher than the highest water level of the toilet tank, but more importantly, it improves the water outlet of the water outlet channel 5.
  • the outlet channel 5 is designed to extend upward along the side wall of the valve seat 1, and the water outlet channel 5
  • the water outlet 52 is exposed on the outer side 14 of the upper edge of the valve seat 1, and the water path of the water outlet channel 5 continues to extend upward, so that the position of the water outlet 52 of the water outlet channel 5 is higher than the water stop surface 32 of the water outlet end 31 of the water inlet channel 3.
  • Above the highest water level set by the toilet tank. When the water in the water inlet pipe 33 suddenly loses pressure, causing the rubber water-stop cushion 42 to fail to block the water-stop surface 32 of the water outlet end 31 of the water inlet channel 3, the water outlet 52 of the water outlet channel 5 directly fills the water inlet pipe 33.
  • the air pressure in the water inlet channel 3 is relatively balanced with the outside, preventing siphon generation, while ensuring that the anti-siphon function never fails, and eliminating the risk of failure of the anti-siphon pad or anti-siphon plug component and structure, and the valve seat structure
  • the design is simpler.
  • the purpose of the invention in this case is to prevent siphoning, and the key change is the water path of the inlet valve. Therefore, the pressure stop valve 4 and the buoyancy control mechanism 2 adopt the existing structure. According to the knowledge of the industry, the pressure stop valve 4 is based on the pressure The structure of the water stop valve is different, including a back pressure valve and a needle valve. The background technology of the present invention uses a back pressure valve, which is also applicable to the technical solution of the present invention. The needle valve is listed below.
  • the pressure water stop valve 4 shown in Figure 24 is a needle valve, which mainly includes an upper cover 41, a rubber water stop cushion 42, a stainless steel needle 46, and the rubber water stop cushion 42 includes a sealing ring 421, a water stop seat 422, a needle sleeve 423, and a water stop
  • the seat 422 is a circular ring
  • the bottom 426 of the water stop seat 422 is a blocking surface
  • the middle of the water stop seat 422 is provided with a needle sleeve 423
  • the needle sleeve 423 is provided with a longitudinal through hole 40 along the axis
  • the upper section of the longitudinal through hole 40 is
  • the pressure relief hole 45 corresponding to the middle section of the longitudinal through hole 40, is provided with a radial water inlet hole 44 on the side wall of the needle sleeve 423.
  • the lower part of the needle sleeve 423 is connected with the inner ring 427 of the water stop seat 422, and the sealing ring 421 is connected with The outer ring 429 of the water stop 422 is elastically connected, the upper section of the stainless steel needle 46 is a polished rod 461 tightly fitted with the pressure relief hole 45, the middle section of the stainless steel needle 46 is a section of necking 462, and the lower section of the stainless steel needle 46 is provided with a water trough 47.
  • the upper cover 41 seals the rubber water stop gasket 42 in the accommodating cavity 10 of the valve seat 1.
  • the rubber water stop gasket 42 is located above the water stop surface 32 of the water outlet end 31 of the water inlet channel 3.
  • a pressure cavity 43 is formed between the rubber water stop cushion 42 and the upper cover 41.
  • the water inlet hole 44 on the rubber water stop cushion 42 communicates the pressure cavity 43 with the water outlet 31 of the water inlet channel 3.
  • the buoyancy control mechanism 2 includes The water tank 20, the floating bucket 21, the connecting rod 22, the pendulum rod 23, the pendulum rod 23 is fixed with a stainless steel pin 46 corresponding to the pressure relief through hole 45, the stainless steel pin 46 passes through the upper cover 41 and is inserted into the longitudinal through hole 40, the pendulum rod 23 One end is pivoted on the upper cover 41, the other end of the swing rod 23 is connected to the floating bucket 21 through the connecting rod 22, the floating bucket 21 is placed in the water tank 20, the water tank 20 is sleeved on the water inlet pipe 33, when the floating bucket 21 is in the water tank 20 When the buoyancy is lost, the pendulum rod 23 rotates and falls on the upper cover 41, and the stainless steel needle 46 is partially withdrawn from the longitudinal through hole 40.
  • the neck 462 of the stainless steel needle 46 corresponds to the pressure relief hole 45, and the pressure relief hole 45 is opened ( 14 and 24), the water flows out from the gap between the constriction 462 and the pressure relief hole 45, so the pressure chamber 43 inside the rubber waterstop 42 will not generate water pressure, and the rubber waterstop 42 is entering Under the action of water pressure, the side of the upper cover 41 continues to deform, the rubber water stop cushion 42 is separated from the water stop surface 32 of the water inlet channel 3 (as shown in Figure 13, Figure 14, Figure 24), and water enters from the water inlet pipe 33. Then it flows into the toilet tank from the water outlet channel 5 to achieve the purpose of water intake.
  • the sealing ring 421 and the outer ring 429 of the waterstop 422 are connected by a first elastic bending portion 424, and the waterstop 422 and the inner ring 427 of the needle sleeve 423 are connected by a second elastic
  • the curved portion 425 is connected, as shown in Figures 18 and 19, the upper edge of the inner side 427 of the needle sleeve 423 and the lower part of the needle sleeve 423 are connected by a second elastic curved portion 425, as shown in Figures 20 and 21, the needle sleeve 423
  • the lower edge of the inner side 427 of the ring and the lower part of the needle sleeve 423 are connected by the second elastic bending portion 425. Because the rubber water stop cushion 42 has two elastic bending portions, it has the characteristic of being sensitive to movement and deformation.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Life Sciences & Earth Sciences (AREA)
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  • Sanitary Device For Flush Toilet (AREA)

Abstract

一种防虹吸马桶水箱压力止水进水阀,包括阀座(1)、压力止水阀(4)、浮力控制机构(2)、进水通道(3)、出水通道(5),阀座(1)上形成容置腔(10),容置腔(10)的底部(11)设有进水通道(3)的出水端(31),出水端(31)的端面形成止水面(32),压力止水阀(4)包括上盖(41)、橡胶止水垫(42),上盖(41)将橡胶止水垫(42)密封在容置腔(10)内,橡胶止水垫(42)置于止水面(32)上方,橡胶止水垫(42)与容置腔(10)的底部(11)之间形成过水腔(12),出水通道(5)的进水口(51)与过水腔(12)相通,出水通道(5)沿阀座(1)的侧壁向上延伸,出水通道(5)的出水口(52)外露在阀座(1)的上边沿外侧(14),橡胶止水垫(42)与上盖(41)之间形成压力腔(43),浮力控制机构(2)控制压力腔(43)的水压,使橡胶止水垫(42)变形封堵或离开止水面(32),实现进水阀的水流通断。

Description

一种防虹吸马桶水箱压力止水进水阀 技术领域
本发明属于马桶水箱压力止水进水阀,特别涉及一种防虹吸马桶水箱压力止水进水阀。
背景技术
现有技术的马桶水箱压力止水进水阀,主要利用生活用水管网中的水压来实现进水或阻断,包括阀体、压力止水阀、浮力控制机构、进水管,压力止水阀安装在阀体上,阀体接置在进水管上,浮力控制机构使压力止水阀内部形成水压或泄压实现水流的通断。其中马桶水箱压力止水进水阀根据压力止水阀结构方式不同,又分为背压进水阀、针阀进水阀。
如图1、图2所示,CN202274155U文献公开了一种马桶水箱背压进水阀,包括阀体1’、压力止水阀2’、浮力控制机构3’、内芯管23’、进水管4’,阀体1’包括顶部的容置腔和下部的套管18’组成,阀体1’通过套管18’套接在进水管4’的外侧,内芯管23’的出水端231’凸出于容置腔底部,内芯管23’的出水端231’端面形成止水面,内芯管23’的进水端232’通过容置腔密封插置在进水管4’形成进水通道11’,套管18’与内芯管23’和进水管4’之间空间形成出水通道12’,出水通道12’的出水口121’伸向马桶水箱底部,压力止水阀2’为背压阀,包括上盖21’、橡胶止水垫22’,背压垫25’,橡胶止水垫22’设置在内芯管23’的出水端231’上方,上盖21’将橡胶止水垫22’密封在阀体1’的容置腔内,橡胶止水垫22’与容置腔底部之间形成过水腔19’,橡胶止水垫22’与上盖21’之间形成压力腔24’,压力腔24’分别有进水孔241’和泄压孔242’,所述的进水孔241’设置在上盖21’的导柱211’上与进水通道11’相通,导柱211’穿透过橡 胶止水垫22’,所述的泄压孔242’设置在上盖21’上,所述的浮力控制机构3’包括水箱31’、浮桶32’、连接杆33’、摆杆34’,摆杆34’上对应泄压孔242’处设置所述的背压垫25’,摆杆34’一端枢设在上盖21’上,摆杆34’另一端通过连接杆33’与浮桶32’连接,浮桶32’置于水箱31’中,水箱31’套在套管18’上,浮力控制机构3’控制泄压孔242’有开启和关闭。
安装时,进水管4’竖向安装在马桶水箱(图未视出)内,进水管4’与生活用水管网相接,通常使压力止水阀2’高于马桶水箱有最高水位面以避免产生虹吸,避免马桶水箱中水依次通过出水通道12’、过水腔19’、进水通道11’而进入生活用水管网中。使用时,因马桶水箱的水被排出,从而使浮力控制机构3’的浮桶32’失去浮力,摆杆34’向下转动,背压垫25’离开泄压孔242’,水从进水通道11’、过水腔19’、出水通道12’进入马桶水箱中,同时,一小部分的水通过进水孔241’进入压力腔24’,再通过泄压孔242’流出,此时达到进水的目的;当马桶水箱中的水位上升到预定位置时,触发浮力控制机构3’的浮桶32’因浮力而上升,摆杆34’向上转动,背压垫25’堵住泄压孔242’,阻止泄压孔242’向外排水,因为压力腔的进水孔241’与进水管4’相通,从而造成压力腔24’中的水压骤然增大,使得橡胶止水垫22’发生弹性膨胀变形,堵住内芯管23’的出水端231’的止水面,切断进水通道11’与出水通道12’之间的水流,达到止水的目的。
为了防止生活用水管网中的水被污染,马桶水箱压力止水进水阀需要进行防虹吸设计,如图1所示,由于阀体1’下部的套管18’套接在进水管4’的外侧,套管18’与内芯管23’和进水管4’之间空间形成出水通道12’,故进水阀的水路在进水通道11’向上延伸经过水腔19’后直接弯折向下随出水通道12’延伸,出水通道12’的出水口121’伸向马桶水箱底部,出水通 道12’的出水口121’远底于马桶水箱设定有最高水位线,出水通道12’与马桶水箱底部之间容易形成水封,故,在出水通道12’与进水通道11’之间过水腔19’内设置有防虹吸垫5’,当进水管4’中的水在突然失压时,造成橡胶止水垫22’不能堵住内芯管23’的出水端231’的止水面,防虹吸垫5’因倒吸封住出水通道12’,防止马桶水箱的水倒流入生活用水管网中,避免生活用水管网中的水被污染。
为此,本发明人针对上述的缺点,对马桶水箱压力止水进水阀的出水通道进行了改进。
发明内容
本发明的目的在于提供一种防虹吸马桶水箱压力止水进水阀,该进水阀在进水管中的水在突然失压不会产生水封,防止虹吸产生。
为了实现上述目的,本发明的技术方案如下:
一种防虹吸马桶水箱压力止水进水阀,包括阀座、压力止水阀、浮力控制机构、进水通道、出水通道,阀座上形成容置腔,容置腔的底部设有进水通道的出水端,出水端的端面形成止水面,压力止水阀包括上盖、橡胶止水垫,上盖将橡胶止水垫密封在容置腔内,橡胶止水垫置于止水面上方,橡胶止水垫与容置腔底部之间形成过水腔,出水通道的进水口与过水腔相通,出水通道沿阀座的侧壁向上延伸,出水通道的出水口外露在阀座的上边沿外侧,橡胶止水垫与上盖之间形成压力腔,浮力控制机构控制压力腔的水压使橡胶止水垫变形封堵或离开止水面实现进水阀的水流通断。
进一步,所述的橡胶止水垫分别有进水孔和泄压孔,进水孔将压力腔与进水通道的出水端相通,浮力控制机构控制泄压孔开启或关闭来控制压力腔的水压使橡胶止水垫变形封堵或离开止水面实现进水阀的水流通断。
进一步,所述的进水通道由进水管形成,进水管设置在阀座的底部,与阀座一体成型。
进一步,所述的进水通道由进水管形成,进水管接置在阀座的底部,与阀座分体成型。
进一步,所述的进水管卡接或螺接在阀座的底部。
进一步,所述的阀座的侧壁内嵌套有套圈,套圈内形成容置腔,出水通道形成在阀座的侧壁内侧与套圈之间。
进一步,所述出水通道的出水口设有斜面,使出水通道的出水口朝向阀座的外侧。
进一步,所述出水通道的出水口为斜通道,使出水通道的出水口朝向阀座的外侧。
进一步,所述出水通道的出水口高于进水通道的出水端口的止水面。
进一步,所述的压力止水阀为背压阀,包括上盖、橡胶止水垫、背压垫,所述的进水孔设置在上盖的导柱上,导柱穿透过橡胶止水垫,所述的泄压孔设置在上盖上。
进一步,所述的压力止水阀为针阀,包括上盖、橡胶止水垫、不锈钢针,橡胶止水垫包括密封圈、止水座、针套,止水座为圆环,止水座的底部为封堵面,止水座中部设有针套,针套的沿轴线设有纵向通孔,纵向通孔的上段为泄压孔,对应纵向通孔的中段在针套的侧壁上设有径向的进水孔,针套的下部与圆环的环内侧弹性连接,密封圈与止水座的外侧弹性连接,不锈钢针的上段为与泄压孔紧配合的光杆,不锈钢针的中段为一段缩颈,不锈钢针的下段开设有过水槽。
进一步,针套的下部与圆环的环内侧上沿或下沿弹性连接。
本案与现在技术相比,传统进水阀的出水通道是由套管与内芯管和进水管之间空间形成的,水路是向下延伸,即传统的进水阀的水从进水通道进入, 经过止水面溢出,再经过水腔之后,沿出水通道继续向下流出,而本案一改本领域技术人员贯常设计,主要改进在于出水通道沿阀座侧壁向上延伸,出水通道的出口外露在阀座的上边沿外侧,出水通道的水路是继续向上延伸,如此出水通道的出口位置高于进水通道的出水端口的止水面,也高于马桶水箱设定的最高水位线。当进水通道中的水在突然失压,造成橡胶止水垫或止水垫不能堵住进水通道的出水端的止水面时,通过出水通道的出水口向进水管中直接补入大气压,使进水通道内的气压与外部保持相对平衡,防止虹吸产生,同时确保防虹吸功能永不失效,也省去防虹吸垫或防虹吸塞部件及结构失效风险,且阀座结构设计得更简单。
附图说明
图1是现有的底进水式进水阀的侧剖图;
图2是图1的局部放大图;
图3是本发明的立体图;
图4是本发明的纵向剖视图一;
图5是本发明的纵向剖视图二;
图6是图4的局部放大图;
图7是图6是的分解图一;
图8是图6是的分解图二;
图9是本发明的工作原理图一;
图10是本发明的进水阀阀座与进水管螺纹连接分解图;
图11是本发明的的工作原理图二;
图12是本发明的止水状态局部剖视图;
图13是本发明的进水状态局部剖视图;
图14是本发明的出水状态局部剖视图;
图15是本发明的针阀的橡胶止水垫与不锈钢针组合图;
图16是本发明的针阀的橡胶止水垫与不锈钢针组合剖视图;
图17是本发明的针阀的橡胶止水垫与不锈钢针分解视图;
图18是本发明的针阀的橡胶止水垫一立体图;
图19是本发明的针阀的橡胶止水垫一剖视图;
图20是本发明的针阀的橡胶止水垫二立体图;
图21是本发明的针阀的橡胶止水垫二剖视图;
图22是本发明的针阀的橡胶止水垫与不锈针组合剖视图;
图23是本发明的止水状态局部剖视图;
图24是本发明的出水状态局部剖视图。
具体实施方式
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图介绍,显而易见地,下面描述中的附图仅仅是一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的技术方案。
如图3-图7所示,一种防虹吸马桶水箱压力止水进水阀,包括阀座1、压力止水阀4、浮力控制机构2、进水通道3、出水通道5,阀座1上形成容置腔10,容置腔10的底部11的设有进水通道3的出水端31,出水端31的端面形成止水面32,压力止水阀4包括上盖41、橡胶止水垫42,上盖41将橡胶止水垫42密封在容置腔10内,橡胶止水垫42置于止水面32的上方,橡胶止水垫42与容置腔10的底部11之间形成过水腔12,出水通道5的进水口51与过水腔12相通,出水通道5沿阀座1的侧壁向上延伸,出水通道5的出水口52外露在阀座1的上边沿外侧14,橡胶止水垫42与上盖41之间形成压力腔43,浮力控制机构2控制压力腔43的水压使橡胶止水垫42变形封堵或离开止水面32实现进水阀的水流通断。
如图4、图6、图9所示,进水通道3直接由进水管33形成,省去了现有的内芯管,用进水管33代替了内芯管,使进水管33具有内芯管功能,即直接在进水通道3的出水端31的端面形成止水面32,减少内芯管在阀座1内的安装,减少不必要的漏水点。进水管33设置在阀座1的底部,与阀座1一体成型,当然也可以与阀座1分体成型,进水管33螺接在阀座1的底部(如图10所示),同理根据产品设计需要,进水管33也可以卡接在阀座1的底部。当然,这样阀座1在进水管33上不可以移动,不能够调整高度,导致压力止水阀4不能需要根据马桶水箱的高度调整与马桶水箱底部之间距离,但是,只要进水管33高度设置得适当,就能满足常用马桶水箱的安装需要。
如图4-图8所示,鉴于出水通道5的进水口51与过水腔12相通,出水口52又外露在阀座1的上边沿外侧14,所以出水通道5的出水水路较为弯折,为了更好制造出水通道5,设有与阀座1的侧壁内侧13大小相适应的套圈15,套圈15内形成容置腔10,套圈15嵌套于的阀座1的侧壁内侧13,出水通道5形成在阀座1的侧壁内侧13与套圈15之间。
如图4、图5、图7所示,所述出水通道5的出水口52设为斜面,使出水通道5的出水口52朝向阀座1的上边沿外侧14,当然,所述出水通道5的出水口52也可为斜通道,使从出水通道5的出水口52的出来的水沿阀座1的上边沿外侧14顺流到马桶水箱中,水不会乱溅,又能够减小进水噪音,同时,出水通道5的出水口52外露在阀座1的上边沿外侧14,并非相对封闭的空管,水在阀座1和进水管33中的外侧面流动,不会形成共鸣,进水噪音也会变小。
如图4、图5所示,为了更好地防止水的飞溅,在进水管33上套有导流管6,导流管6的上端61呈漏斗状,接在出水通道5的出水口52的下方。当然在进水管33上套有导流管6后,浮力控制机构2就套置在导流管6上。
通常压力止水阀4高于马桶水箱的最高水位面以避免产生虹吸,避免马桶水箱中水通过出水通道11、进水管33而进入生活用水管网中。而本发明不仅保留压力止水阀4高于马桶水箱的最高水位面的设计之外,更重要是改进出水通道5的出水水路,设计出水通道5沿阀座1侧壁向上延伸,出水通道5的出水口52外露在阀座1的上边沿外侧14,出水通道5的水路是继续向上延伸,如此出水通道5的出水口52位置高于进水通道3的出水端31的止水面32,也高于马桶水箱设定的最高水位线。当进水管33中的水在突然失压,造成橡胶止水垫42不能堵住进水通道3的出水端31的止水面32时,通过出水通道5的出水口52向进水管33中直接补入大气压,使进水通道3内的气压 与外部保持相对平衡,防止虹吸产生,同时确保防虹吸功能永不失效,也省去防虹吸垫或防虹吸塞部件及结构失效风险,且阀座结构设计得更简单。
本案的发明目的是防虹吸产生,重点改变的是进水阀的水路,故,压力止水阀4、浮力控制机构2均采用现有结构,根据本行业知识可知,压力止水阀4根据压力止水阀结构方式不同,分为背压阀、针阀,本发明背景技术使用的就是背压阀,对于本发明技术方案同样适用,下面列举针阀。
如图15
Figure PCTCN2019100213-appb-000001
图24所示压力止水阀4为针阀,主要包括上盖41、橡胶止水垫42、不锈钢针46,橡胶止水垫42包括密封圈421、止水座422、针套423,止水座422为圆环,止水座422的底部426为封堵面,止水座422的中部设有针套423,针套423的沿轴线设有纵向通孔40,纵向通孔40的上段为泄压孔45,对应纵向通孔40的中段在针套423的侧壁上设有径向的进水孔44,针套423的下部与止水座422的环内侧427连接,密封圈421与止水座422的环外侧429弹性连接,不锈钢针46的上段为与泄压孔45紧配合的光杆461,不锈钢针46的中段为一段缩颈462,不锈钢针46的下段开设有过水槽47。
如图4-图24所示,上盖41将橡胶止水垫42密封在阀座1的容置腔10内,橡胶止水垫42位于进水通道3的出水端31的止水面32上方,橡胶止水垫42与上盖41之间形成压力腔43,橡胶止水垫42上的进水孔44将压力腔43与进水通道3的出水端31相通,所述的浮力控制机构2包括水箱20、浮桶21、连接杆22、摆杆23,摆杆23上对应泄压通孔45处固定不锈钢针46,不锈钢针46穿过上盖41插在纵向通孔40中,摆杆23一端枢设在上盖41上,摆杆23另一端通过连接杆22与浮桶21连接,浮桶21置于水箱20中,水箱20套在进水管33上,当浮桶21在水箱20中失去浮力时,摆杆23在上盖41 上转动落下,不锈钢针46从纵向通孔40中部分抽出,此时不锈钢针46的缩颈462与泄压孔45对应,泄压孔45被打开(如图14、图24所示),水从缩颈462与泄压孔45之间的缝隙流出,所以橡胶止水垫42内侧的压力腔43不会产生水压,橡胶止水垫42在进水压力的作用下持续向上盖41一侧变形,橡胶止水垫42与进水通道3的止水面32相分离(如图13、图14、图24所示),水从进水管33进入,再从出水通道5流入马桶水箱,达到进水的目的。当浮桶21在水箱20中受到浮力作用时,摆杆23在上盖41上转动抬起,不锈钢针46的光杆461完全插入泄压孔45中,与泄压孔45形成紧配合,堵住泄压孔45,泄压孔45被关闭(如图9、图11、图12、图23所示),由于进水孔44将压力腔43与进水通道3的出水端31相通,橡胶止水垫42内侧的水压越来越大,橡胶止水垫42发生弹性变形,止水座422的底部426压在进水通道3的止水面32上(如图12、图23所示),关闭进水,实现自动止水功能。以此来控制压力腔43的水压使橡胶止水垫42变形封堵或离开止水面32实现进水阀的水流通断。
为了让橡胶止水垫42的弹性变形更灵敏,密封圈421与止水座422的环外侧429通过第一弹性弯曲部424连接,止水座422与针套423的环内侧427通过第二弹性弯曲部425连接,如图18、图19所示,针套423的环内侧427上边沿与针套423的下部通过第二弹性弯曲部425连接,如图20、图21所示,针套423的环内侧427下边沿与针套423的下部通过第二弹性弯曲部425连接,由于橡胶止水垫42具有两个弹性弯曲部,使得具有活动变形灵敏的特点。

Claims (10)

  1. 一种防虹吸马桶水箱压力止水进水阀,包括阀座、压力止水阀、浮力控制机构、进水通道、出水通道,其特征在于:阀座上形成容置腔,容置腔的底部设有进水通道的出水端,出水端的端面形成止水面,压力止水阀包括上盖、橡胶止水垫,上盖将橡胶止水垫密封在容置腔内,橡胶止水垫置于止水面上方,橡胶止水垫与容置腔底部之间形成过水腔,出水通道的进水口与过水腔相通,出水通道沿阀座侧壁向上延伸,出水通道的出水口外露在阀座的上边沿外侧,橡胶止水垫与上盖之间形成压力腔,浮力控制机构控制压力腔的水压使橡胶止水垫变形封堵或离开止水面实现进水阀的水流通断。
  2. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的进水通道由进水管形成,进水管设置在阀座的底部,与阀座一体成型。
  3. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的进水通道由进水管形成,进水管接置在阀座的底部,与阀座分体成型。
  4. 如权利要求3所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的进水管卡接或螺接在阀座的底部。
  5. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的阀座的侧壁内侧嵌套有套圈,出水通道形成在阀座的侧壁内侧与套圈之间。
  6. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述出水通道的出水口设有斜面或斜通道,使出水通道的出水口朝向阀座的外侧。
  7. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在 于:所述出水通道的出水口高于进水通道的出水端口的止水面。
  8. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的压力止水阀为背压阀,包括上盖、橡胶止水垫、背压垫,所述的进水孔设置在上盖的导柱上,导柱穿透过橡胶止水垫,所述的泄压孔设置在上盖上。
  9. 如权利要求1所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:所述的压力止水阀为针阀,包括上盖、橡胶止水垫、不锈钢针,橡胶止水垫包括密封圈、止水座、针套,止水座为圆环,止水座的底部为封堵面,止水座中部设有针套,针套的沿轴线设有纵向通孔,纵向通孔的上段为泄压孔,对应纵向通孔的中段在针套的侧壁上设有径向的进水孔,针套的下部与圆环的环内侧弹性连接,密封圈与止水座的外侧弹性连接,不锈钢针的上段为与泄压孔紧配合的光杆,不锈钢针的中段为一段缩颈,不锈钢针的下段开设有过水槽。
  10. 如权利要求9所述的一种防虹吸马桶水箱压力止水进水阀,其特征在于:针套的下部与圆环的环内侧上沿或下沿弹性连接。
PCT/CN2019/100213 2019-08-12 2019-08-12 一种防虹吸马桶水箱压力止水进水阀 WO2021026727A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318062A (en) * 1993-01-06 1994-06-07 Antunez Bruce A Readily serviceable differential pressure actuated ballcock valve
CN2755387Y (zh) * 2004-10-07 2006-02-01 北新集团山东潍坊建筑陶瓷厂 一种防虹吸装置
CN110106948A (zh) * 2019-05-31 2019-08-09 厦门立业卫浴工业有限公司 一种防虹吸马桶水箱进水阀

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318062A (en) * 1993-01-06 1994-06-07 Antunez Bruce A Readily serviceable differential pressure actuated ballcock valve
CN2755387Y (zh) * 2004-10-07 2006-02-01 北新集团山东潍坊建筑陶瓷厂 一种防虹吸装置
CN110106948A (zh) * 2019-05-31 2019-08-09 厦门立业卫浴工业有限公司 一种防虹吸马桶水箱进水阀

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