WO2020237654A1 - 一种防虹吸马桶水箱进水阀 - Google Patents

一种防虹吸马桶水箱进水阀 Download PDF

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Publication number
WO2020237654A1
WO2020237654A1 PCT/CN2019/089608 CN2019089608W WO2020237654A1 WO 2020237654 A1 WO2020237654 A1 WO 2020237654A1 CN 2019089608 W CN2019089608 W CN 2019089608W WO 2020237654 A1 WO2020237654 A1 WO 2020237654A1
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WO
WIPO (PCT)
Prior art keywords
water
water inlet
valve
pressure
stop
Prior art date
Application number
PCT/CN2019/089608
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English (en)
French (fr)
Inventor
张子鹏
刘永茂
Original Assignee
厦门立业卫浴工业有限公司
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Priority to PCT/CN2019/089608 priority Critical patent/WO2020237654A1/zh
Publication of WO2020237654A1 publication Critical patent/WO2020237654A1/zh

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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
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

Definitions

  • the invention belongs to a toilet water tank inlet valve, and particularly relates to an anti-siphon pressure water-stop toilet water tank inlet valve.
  • the prior art has a toilet tank inlet valve, which mainly uses the water pressure in the domestic water pipe network to achieve water inlet or block, including a valve body, a pressure stop valve, a buoyancy control mechanism, an inlet pipe, and the pressure stop valve is installed in 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 water stop valve to realize the on and off of the water flow.
  • the toilet tank inlet valve is divided into side inlet type inlet valve and bottom inlet type inlet valve according to different water inlet methods. According to the different structure of pressure stop valve, it is divided into back pressure inlet valve and needle valve. Inlet valve.
  • the CN102345315U document discloses a side-inlet back pressure water inlet valve, which includes a valve body 100, a pressure stop valve 200, a buoyancy control mechanism 300, a water inlet pipe 400, and the water inlet pipe 400 is connected.
  • the pressure water stop valve 200 On the side of the valve body 100, the pressure water stop valve 200 includes an upper cover 201, a rubber water stop gasket 202, and an inner core tube 203.
  • a vertical water outlet channel 101 is formed on the valve body 100, and the inner core tube 203 is horizontally arranged on the valve body 100.
  • the inner core tube 203 and the valve body 100 form a horizontal water inlet channel 102, the inner core tube water outlet 2031 communicates with the vertical water outlet channel 101, the inner core tube water inlet 2032 end surface forms a water stop surface, and a rubber water stop gasket 202 is arranged at the water inlet end 2032 of the inner core tube.
  • the upper cover 201 seals the rubber water stop gasket 202 and the valve body 100 together.
  • a pressure chamber is formed between the upper cover 201 and the rubber water stop gasket 202.
  • the pressure chambers have water inlet holes respectively.
  • the pressure relief hole, the water inlet hole communicates with the lateral water inlet channel 102, and the buoyancy control mechanism 300 is provided outside the pressure relief hole.
  • the water inlet pipe 400 is horizontally installed on the toilet tank (not shown in the figure), and the water inlet pipe 400 is connected to the domestic water pipe network.
  • the pressure stop valve 200 is higher than the toilet tank to have the highest water level to avoid siphoning , Causing the water in the toilet tank to enter the domestic water pipe network through the water inlet pipe 400, the horizontal water inlet channel 102, the inner core pipe 203, and the vertical water outlet channel 101 in sequence.
  • the buoyancy control mechanism 300 loses its buoyancy, the pressure relief hole is opened, and the water enters the toilet tank from the water inlet pipe 400, the pressure stop valve 200, and the vertical water outlet channel 101.
  • a small part of water enters the pressure chamber through the water inlet hole, and then flows out through the pressure relief hole.
  • the purpose of water intake is achieved; when the water level in the toilet tank rises to a predetermined position, the buoyancy control mechanism 300 is triggered to block the pressure relief.
  • the hole prevents the pressure relief hole from draining outward, because the water inlet hole of the pressure chamber communicates with the water inlet pipe 400, which causes the water pressure in the pressure chamber to increase suddenly, causing the rubber waterstop 202 to elastically expand and deform, blocking the inner core
  • the water stop surface of the water inlet end 2032 of the pipe cuts off the water flow between the transverse water inlet channel 102 and the inner core pipe 203 to achieve the purpose of water stop.
  • the CN202274155U document discloses a bottom-inlet back pressure water inlet valve, which includes a valve body 1', a pressure stop valve 2', a buoyancy control mechanism 3', a water inlet pipe 4', and a water inlet pipe 4' Connected to the lower part of the valve body 1', the pressure water stop valve 2'includes an upper cover 21', a rubber water stop cushion 22', and an inner core tube 23'.
  • the end surface of the inner core tube water outlet 231' forms a water stop surface, and the inner core tube enters
  • the water end 232' is inserted in the water inlet pipe to form a vertical water inlet channel 11', the inner core pipe 23' and the water inlet pipe 4'are sealed by a sealing ring, and the valve body 1'is sleeved on the water inlet pipe 4'
  • a vertical water outlet channel 12' is formed between the valve body 1'and the inner core pipe 23' and the water inlet pipe 4'
  • the rubber water stop cushion 22' is arranged at the inner core pipe water outlet 231', the upper cover 21' and the valve body 1'are sealed together, and a pressure chamber 24' is formed between the upper cover 21' and the rubber water stop cushion 22'.
  • the pressure chamber 24' has a water inlet 241' and a pressure relief hole 242', and the water inlet 241' and the vertical It communicates with the water inlet channel 11', and a buoyancy control mechanism 3'is provided outside the pressure relief hole 242'.
  • the water inlet pipe 4' is vertically installed on the toilet tank (not shown in the figure), and the water inlet pipe is connected to the domestic water pipe network.
  • the pressure stop valve 2' is higher than the toilet tank to have the highest water level to avoid production
  • the siphon causes the water in the toilet tank to enter the domestic water pipe network through the water inlet pipe 4', the vertical water inlet channel 11', the inner core pipe 23', and the vertical water outlet channel 12' in sequence.
  • the principle is the same as that of the side-inlet toilet tank inlet valve.
  • the water in the toilet tank is discharged, so that the buoyancy control mechanism 3'loses buoyancy, the pressure relief hole 242' is opened, and the water flows from the inlet pipe. 4'and the pressure stop valve 2'enter the toilet tank.
  • a small part of water enters the pressure chamber 24' through the water inlet 241', and then flows out through the pressure relief hole 242'.
  • the buoyancy control mechanism 3' is triggered to block the pressure relief hole 242' and prevent the pressure relief hole 242' from draining outward, because the water inlet hole 241' of the pressure chamber and the water inlet pipe 4 'Communication, causing the water pressure in the pressure chamber to suddenly increase, causing the rubber water stop cushion to elastically expand and deform, blocking the water stop surface of the inner core tube outlet 231', cutting off the vertical water inlet channel 11' and the vertical water outlet
  • the water flow between the channels 12' achieves the purpose of stopping water.
  • the above two types of toilet tank inlet valves need to be designed with anti-siphon, as shown in Figure 1 and Figure 2, the vertical outlet channel 101 of the side inlet water inlet valve
  • the water outlet extends to the bottom of the toilet tank, and the highest water level is set at the far bottom of the toilet tank. It is easy to form a water seal between the vertical water outlet channel and the bottom of the toilet tank. Therefore, between the water outlet end 2031 of the inner core pipe and the vertical water outlet channel 101 An anti-siphon plug 500 is installed in the middle. When the water in the water inlet pipe loses pressure suddenly, the rubber water stop pad 202 cannot block the water stop surface of the inner core pipe.
  • the anti-siphon plug 500 blocks the water outlet end of the inner core pipe 2031 due to back suction. , To prevent the water in the toilet tank from flowing back into the domestic water pipe network, and avoid the water in the domestic water pipe network from being polluted.
  • the outlet of the vertical water outlet channel 12' of the bottom water inlet valve also extends to the bottom of the toilet tank.
  • the maximum water level line is set far from the toilet tank, and the vertical water outlet channel is connected to the bottom of the toilet tank. It is easy to form a water seal between them, so an anti-siphon pad 5'is provided in the vertical water outlet channel.
  • the rubber water stop pad 22' cannot block the inner core tube.
  • the inventor of the present invention has improved the toilet water tank inlet valve in response to the above-mentioned shortcomings.
  • the purpose of the present invention is to provide an anti-siphon toilet tank water inlet valve.
  • the water in the water inlet pipe suddenly loses pressure, it can quickly keep the air pressure in the water inlet channel in a relative balance with the outside, preventing siphon generation and ensuring anti-siphoning The function never fails.
  • An anti-siphon toilet tank water inlet valve includes a valve seat, a pressure stop valve, a buoyancy control mechanism, and a water inlet pipe.
  • the valve seat forms an accommodation cavity.
  • the bottom of the accommodation cavity is set at the water outlet end of the water inlet pipe.
  • the accommodation cavity The bottom of the water inlet is provided with a water outlet channel leading to the outer side wall of the water outlet end of the water inlet pipe.
  • the water outlet of the water outlet channel is exposed on the outer surface of the bottom of the accommodating cavity and is higher than the highest water level set by the toilet tank.
  • the pressure water stop valve is installed in In the accommodating cavity, the buoyancy control mechanism makes the water pressure or pressure relief formed inside the pressure water stop valve to realize the on and off of the water flow.
  • the pressure water stop valve includes an upper cover, a rubber water stop cushion, and an inner core tube.
  • the water outlet end of the inner core tube forms a water stop surface, and the water inlet end of the inner core tube is inserted into the water inlet pipe to form a vertical water inlet channel ,
  • the inner core tube and the water inlet pipe are sealed by setting a sealing ring, the rubber water stop gasket is arranged at the water outlet end of the inner core tube, the upper cover seals the rubber water stop gasket and the valve body together, the upper cover and the rubber water stop gasket
  • a pressure chamber is formed between the pressure chambers, and the pressure chambers are respectively provided with a water inlet hole and a pressure relief hole, the water inlet hole communicates with the vertical water inlet channel, and the buoyancy control mechanism controls the pressure relief hole to open or close.
  • the head of the water outlet end of the water inlet pipe stops the water surface
  • the pressure water stop valve includes an upper cover and a water stop cushion.
  • the upper cover seals the water stop cushion in the accommodating cavity of the valve seat, and the water stop cushion is located At the head water stop surface of the water outlet end of the water inlet pipe, a pressure cavity is formed between the water stop cushion and the upper cover.
  • the pressure cavity has a water inlet and a pressure relief hole respectively.
  • the water inlet and the water inlet pipe communicate with each other, and the buoyancy control mechanism controls the pressure relief hole Turn on or off.
  • the pressure water stop valve is a back pressure water stop 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 Rubber water-stop pad
  • the pressure relief hole is provided on the top of the upper cover
  • the buoyancy control mechanism includes a water tank, a floating bucket, a connecting rod, a swing rod, and the back pressure is set on the swing rod corresponding to the pressure relief hole
  • one end of the swing rod is pivoted on the upper cover, and the other end of the swing rod is connected with the floating bucket through the connecting rod.
  • the floating bucket is placed in the water tank, and the water tank is sleeved on the water inlet pipe.
  • the pressure water stop valve is a needle valve pressure water stop valve, which includes an upper end cover, a water stop pad, and a stainless steel needle.
  • the pressure relief through hole is provided through the water stop pad, and the water inlet through hole is also The stainless steel needle is inserted into the pressure relief through hole through the upper end cover.
  • the stainless steel needle is provided with a water tank.
  • the buoyancy control mechanism includes a water tank, a floating bucket, a connecting rod, and a swing rod.
  • the pressure relief hole is provided with a stainless steel needle, one end of the swing rod is pivoted on the upper end cover, the other end of the swing rod is connected with the floating bucket through the connecting rod, the floating bucket is placed in the water tank, and the water tank is sleeved on the water inlet pipe.
  • the water outlet of the water outlet channel is close to the outer side wall of the water outlet end of the water inlet pipe, and the water outlet channel is provided with a slope so that the water outlet of the water outlet channel faces the outer side wall of the water outlet end of the water inlet pipe.
  • the water outlet of the water outlet channel is close to the outer side wall of the water outlet end of the water inlet pipe, the water outlet channel is an inclined channel, and the water outlet of the water outlet channel faces the outer side wall of the water outlet end of the water inlet pipe.
  • valve seat and the water outlet end of the water inlet pipe are integrally formed.
  • valve seat is clamped or screwed to the water outlet end of the water inlet pipe.
  • the toilet tank water inlet valve is a bottom water inlet valve, that is, the water inlet end of the water inlet pipe is installed at the bottom of the toilet tank.
  • the toilet tank water inlet valve is a side water inlet valve, that is, the water inlet end of the water inlet pipe is installed on the side of the toilet water tank.
  • a draft tube is sheathed on the water inlet pipe, and the buoyancy control mechanism is sheathed on the draft tube.
  • the main advantage of this case is that the water outlet of the water outlet is directly exposed at the bottom of the valve seat, which is higher than the highest water level set by the toilet tank, so that the outlet of the water outlet is directly connected to the atmospheric pressure, and the water outlet will not be A water seal is formed between the bottom of the toilet tank.
  • the water inlet pipe suddenly loses pressure, causing the rubber water stop cushion to not block the water stop surface of the water inlet pipe, the water inlet pipe of the water outlet channel is directly filled with atmospheric pressure to make The air pressure in the water inlet channel is relatively balanced with the outside to prevent siphoning, and at the same time to ensure that the anti-siphon function never fails. Also go to the anti-siphon pad or anti-siphon plug.
  • Figure 1 is a side sectional view of a conventional side inlet water inlet valve
  • Figure 2 is a top view of a conventional side inlet water inlet valve
  • Figure 3 is a side sectional view of a conventional bottom-inlet water inlet valve
  • Figure 4 is a perspective view of the bottom water inlet valve of the present invention.
  • Fig. 5 is a schematic diagram of the water inlet state of the bottom water inlet type back pressure inlet valve of the present invention.
  • Figure 6 is a second cross-sectional view of the bottom water inlet type back pressure water inlet valve of the present invention.
  • Figure 7 is an exploded view of the bottom water inlet type back pressure water inlet valve of the present invention.
  • FIG. 8 is a cross-sectional view of the bottom water inlet type back pressure water inlet valve of the present invention in a water stop state
  • FIG. 9 is a working principle diagram 1 of the bottom water inlet type back pressure water inlet valve of the present invention.
  • Figure 10 is a schematic diagram of the cooperation between the rubber water stop pad and the upper cover of the bottom water inlet type back pressure water inlet valve of the present invention.
  • Figure 11 is a cross-sectional view of the bottom water inlet needle valve of the present invention in a water-stop state
  • Figure 12 is a cross-sectional view of a bottom water inlet needle valve inlet valve of the present invention.
  • Figure 13 is a second cross-sectional view of the bottom water inlet needle valve of the present invention.
  • FIG. 15 is a working principle diagram 1 of the bottom water inlet needle valve water inlet valve of the present invention.
  • 16 is an exploded schematic view of the water stop pad and the stainless needle of the bottom water inlet needle valve water inlet valve of the present invention
  • Fig. 17 is a schematic diagram of the clamped disassembly and disassembly of the valve seat of the bottom water inlet valve and the water inlet pipe of the present invention
  • Figure 18 is an exploded schematic view of the bottom water inlet type back pressure water inlet valve valve seat and the water inlet pipe of the present invention
  • 19 is a schematic diagram of the clamping assembly of the bottom water inlet type back pressure water inlet valve seat and the water inlet pipe of the present invention.
  • 20 is a schematic diagram of the threaded connection disassembly of the bottom water inlet valve seat and the water inlet pipe of the present invention
  • Figure 21 is an exploded schematic view of the threaded connection between the bottom inlet type back pressure inlet valve valve seat and the inlet pipe of the present invention
  • Figure 22 is a schematic view of the threaded connection assembly of the bottom water inlet type back pressure water inlet valve seat and the water inlet pipe of the present invention
  • Figure 23 is an exploded schematic diagram of the bottom water inlet needle valve inlet valve seat and the water inlet pipe of the present invention.
  • 24 is an exploded schematic view of the threaded connection between the inlet valve seat of the bottom inlet needle valve and the inlet pipe of the present invention
  • Figure 25 is a perspective view 1 of the side inlet water inlet valve of the present invention.
  • Figure 26 is a cross-sectional view of the side water inlet needle valve water stop state of the present invention.
  • Figure 27 is the second cross-sectional view of the side-inlet needle valve water inlet valve of the present invention.
  • Figure 28 is a second perspective view of the side-inlet needle valve water inlet valve of the present invention.
  • Figure 29 is a cross-sectional exploded view of the side-inlet needle valve water inlet valve of the present invention.
  • Fig. 30 is a working principle diagram 1 of the side-inlet needle valve water inlet valve of the present invention.
  • the toilet tank inlet valve is divided into side inlet type inlet valve and bottom inlet type inlet valve according to different water inlet methods. According to the different structure of pressure stop valve, it is divided into back pressure inlet valve and needle. Valve inlet valve.
  • the present invention first focuses on the introduction of the embodiment of the bottom inlet water inlet valve. The structural relationship and principle of the patent of the present invention are also applicable to the side inlet water inlet valve, and then the embodiment of the side inlet water inlet valve is made brief introduction.
  • a toilet water tank bottom inlet water inlet valve includes a valve seat 1, a pressure stop valve, a buoyancy control mechanism 2, an inlet pipe 3, and an accommodating cavity is formed on the valve seat 1.
  • the bottom is arranged at the water outlet end of the water inlet pipe 3, and the bottom of the accommodating cavity is provided with a water outlet channel leading to the outer side wall of the water outlet end of the water inlet pipe.
  • the water outlet of the water outlet is exposed on the outer surface of the accommodating cavity bottom and is higher than the toilet tank Set the highest water level line, the pressure stop valve is installed in the containing cavity, the pressure stop valve is the prior art, the pressure stop valve includes the upper cover, the rubber water stop cushion, the inner core tube, and the water outlet end surface of the inner core tube The water stop surface is formed, the water inlet end of the inner core tube is inserted into the water inlet pipe to form a vertical water inlet channel, the inner core tube and the water inlet tube are sealed by setting a sealing ring, and the rubber water stop pad is arranged at the water outlet end of the inner core tube.
  • the upper cover seals the rubber water stop gasket and the valve body together.
  • a pressure chamber is formed between the upper cover and the rubber water stop gasket.
  • the pressure chambers have water inlet and pressure relief holes respectively, and the water inlet is communicated with the vertical water inlet channel.
  • the buoyancy control mechanism 2 opens or blocks the pressure relief hole to form water pressure or pressure relief inside the pressure stop valve to realize the on-off of the water flow.
  • the toilet tank bottom water inlet valve is divided into bottom water inlet back pressure inlet valve and bottom water needle valve inlet valve according to the different pressure stop valve structure.
  • a bottom water inlet type back pressure water inlet valve including a valve seat 1, a back pressure water stop valve 4, a buoyancy control mechanism 2, a water inlet pipe 3.
  • the valve seat 1 is formed with an accommodation cavity 10 in which the valve back pressure pressure stop valve 4 is installed.
  • the bottom 14 of the accommodation cavity 10 is provided at the water outlet end 31 of the water inlet pipe 3, and the bottom 14 of the accommodation cavity 10 is provided with a water inlet pipe
  • the back pressure water stop valve 4 mainly includes an upper cover 42, a rubber water stop gasket 43.
  • the back pressure pad 48, the upper cover 42 seals the rubber water stop cushion 43 in the accommodating cavity 10 of the valve seat 1.
  • the rubber water stop cushion 43 is located at the head water stop surface 32 of the water outlet end 31 of the water inlet pipe 3.
  • a pressure chamber 45 is formed between the water stop cushion 43 and the upper cover 42.
  • the pressure chamber 45 has a water inlet 46 and a pressure relief hole 47, respectively.
  • the water inlet 46 is arranged on the guide post 49 of the upper cover 42 (as shown in FIG.
  • the buoyancy control mechanism 2 is a common structure of the existing toilet water inlet valve, which is the prior art, including the water tank 20, the floating bucket 21, the connecting rod 22, the swing rod 23, and the pressure relief hole 47 on the swing rod 23 A back pressure pad 48 is provided.
  • One end of the swing rod 23 is pivoted on the upper cover 42, and 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, and the water tank 20 is sleeved in the water inlet pipe 3.
  • the above-mentioned water inlet pipe 3 is vertically installed on the toilet tank (not shown in the figure), and the water inlet end of the water inlet pipe 3 is installed at the bottom of the toilet water tank and the domestic water pipe network (not shown in the figure).
  • the back pressure water stop valve 4 is higher than the highest water level of the toilet tank to avoid siphoning, causing the water in the toilet tank to enter the domestic water pipe network through the water outlet channel 11 and the water inlet pipe 3 in turn.
  • the water in the toilet tank When in use, the water in the toilet tank is drained, causing the water in the water tank 20 of the buoyancy control mechanism 2 to leak out, the floating bucket 21 loses buoyancy, the swing rod 23 is not lifted upwards, and the back pressure pad 24 does not block the pressure relief hole 47. Therefore, the water flowing into the pressure cavity 45 from the water inlet 46 can be discharged from the pressure relief hole 4, and the pressure cavity 45 inside the rubber water stop cushion 43 will not generate water pressure. The rubber water stop cushion 43 continues under the action of the water inlet pressure.
  • the side of the upper cover 42 is deformed, the rubber water stop pad 43 is separated from the head water stop surface 32 of the water outlet end 31 of the water inlet pipe 3, and the domestic water pipe network enters from the water inlet pipe 3, and then flows into the toilet tank from the water outlet channel 11. Purpose of water intake.
  • a bottom water inlet needle valve inlet valve the same as a bottom water inlet back pressure inlet valve is valve seat 1, buoyancy control mechanism 2 , Water inlet pipe 3, the difference is that the needle valve pressure stop valve 5 replaces the back pressure pressure stop valve 4.
  • the valve seat 1 forms an accommodating cavity 10 in which a needle valve pressure stop valve 5 is installed.
  • the bottom 14 of the accommodating cavity 10 is provided at the water outlet end 31 of the water inlet pipe 3, and the bottom 14 of the accommodating cavity 10 is provided with a water inlet pipe 3
  • the needle pressure water stop valve 5 mainly includes an upper end cover 52 , Water stop cushion 53, stainless steel needle 58, upper end cover 52 seals water stop cushion 53 in the accommodating cavity 10 of valve seat 1.
  • Water stop cushion 53 is located at the head water stop surface 32 of the water outlet end 31 of the water inlet pipe 3.
  • a pressure cavity 55 is formed between the water stop cushion 53 and the upper end cover 52.
  • the pressure cavity 55 has a water inlet through hole 56 and a pressure relief through hole 57 respectively.
  • the pressure relief through hole 57 is penetrated on the water stop cushion 53, and the water inlet
  • the through hole 56 is also provided on the water stop cushion 53, and the buoyancy control mechanism 2 is a common structure of the existing toilet water inlet valve, which is the prior art, and includes a water tank 20, a floating bucket 21, a connecting rod 22, and a swing rod 23.
  • the pendulum rod 23 is provided with a stainless steel needle 58 corresponding to the pressure relief through hole 57.
  • the stainless steel needle 58 passes through the upper end cover 52 and is inserted into the pressure relief through hole 57.
  • the stainless steel needle 58 is provided with a water groove 59 (as shown in Figure 16)
  • One end of the pendulum rod 23 is pivoted on the upper end cover 52, and the other end of the pendulum 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, and the water tank 20 is sleeved on the water inlet pipe 3.
  • the pendulum rod 23 rotates and falls on the upper end cover 52, the stainless steel needle 58 is partially drawn out from the pressure relief hole 47, and the pressure relief hole 47 is opened.
  • the above-mentioned water inlet pipe 3 is vertically installed on the toilet tank (not shown), and the water inlet end of the water inlet pipe 3 is installed at the bottom of the toilet tank and the domestic water pipe network (not shown in the figure).
  • the needle valve pressure stop valve 5 is higher than the highest water level of the toilet tank to avoid siphoning, causing the water in the toilet tank to pass through the water outlet channel 11 and the water inlet pipe 3 to enter the domestic water pipe network.
  • the water in the toilet tank is drained, causing the water in the water tank 20 of the buoyancy control mechanism 2 to leak out, and the floating bucket 21 loses buoyancy.
  • the main advantages of the two types of bottom-inlet toilet tank inlet valves listed above are that the inner core tube is omitted, and the inner core tube is replaced by the inlet tube, so that the inlet tube has the function of the inner core tube, namely The water stop surface is formed directly on the water outlet end of the inlet pipe.
  • the inner core pipe component is omitted, which reduces the installation of the inner core pipe in the valve seat and reduces unnecessary water leakage points.
  • the valve body is easier to manufacture.
  • the bottom of the accommodating cavity 10 of the valve seat 1 is set at the water outlet end 31 of the water inlet pipe 3, and the bottom 14 of the accommodating cavity 10 of the valve seat 1 forms a water outlet channel 11 ,
  • the water outlet 12 of the water outlet channel 11 is exposed on the outer surface 19 of the accommodating cavity bottom, which is higher than the highest water level set by the toilet tank. It is higher than the highest water level 7 set by the toilet tank, so that the water outlet 12 of the water outlet channel 11 is directly connected to atmospheric pressure, and there will be no water seal between the water outlet channel 11 and the bottom of the toilet tank.
  • the water outlet 12 of the water outlet channel 11 is close to the outer side wall 34 of the outlet end 31 of the water inlet pipe 3.
  • the water outlet channel 11 is provided with a slope 13 so that the water outlet 12 of the water outlet channel 11 faces the water inlet pipe 3
  • the outlet channel 11 can also be an inclined channel, so that the outlet 12 of the outlet channel 11 faces the outer side wall 34 of the outlet end 31 of the inlet pipe 3, so that the The water flows downstream along the outer side wall 34 of the water inlet pipe 3 into the toilet tank. The water will not splash randomly and can reduce the water inlet noise.
  • the water outlet 12 of the water outlet channel 11 is exposed on the outer surface 15 of the accommodating cavity bottom. Relatively closed empty pipes, the water flowing in the pipe will not form resonance, and the noise of water intake will also be reduced.
  • a diversion tube 6 is sleeved on the water inlet pipe 3.
  • the upper end 61 of the diversion pipe 6 is in the shape of a funnel and is connected to the water outlet channel 11. Below the water outlet 12.
  • the buoyancy control mechanism 2 is sheathed on the draft tube 6.
  • the bottom 14 of the accommodating cavity 10 of the valve seat 1 and the water outlet 31 of the water inlet pipe 3 are integrally formed.
  • the valve seat 1 cannot be moved on the inlet pipe 3 in this way.
  • the height of the valve seat 1 on the inlet pipe 3 cannot be adjusted, resulting in back pressure pressure stop valve 4, needle
  • the valve pressure stop valve 5 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 height of the inlet pipe is set appropriately, it can meet the installation needs of common toilet tanks.
  • the bottom of the accommodating cavity of the valve seat is movably installed at the outlet end of the water inlet pipe, as shown in Figure 17, Figure 18, Figure 19, and Figure 23, the bottom 14 of the accommodating cavity 10 of the valve seat 1 is clamped on the inlet
  • the tooth 35 is screwed into the slot 16 to be clamped on the outlet end 31 of the water inlet pipe 3.
  • valve seat 1 is screwed to the water outlet end 31 of the water inlet pipe 3, and the side surface of the water outlet end 31 is formed with an external thread 36.
  • the housing of the valve seat 1 The bottom 14 of the cavity 10 forms a socket tube 15, the inner wall of the socket tube 15 forms an internal thread 17, and the valve seat 1 is screwed into the external thread 36 through the internal thread 17 to be screwed to the water outlet end 31 of the water inlet pipe 3.
  • valve seat 1 with different height sleeves can be selected to match the toilet tank of different height, and it is also convenient for the valve seat 1 and the back pressure pressure stop valve 4 and the needle pressure stop valve 5 to enter
  • the water pipe is easy to assemble and disassemble.
  • the pressure stop valve fails, replace the back pressure stop valve 4 and the needle valve pressure stop valve 5.
  • the above embodiments of the bottom water inlet valve give a complete introduction to the innovations of the present invention regarding the structure improvement of the inlet pipe, the anti-siphon, and the replaceable valve seat. Among them, there are innovations in the improvement of the inlet pipe structure and the anti-siphon.
  • the water inlet valve is also applicable.
  • the side inlet needle valve inlet valve is listed below for description.
  • a toilet tank side water inlet valve includes a valve seat 8, a pressure stop valve, a buoyancy control mechanism 2, and a water inlet pipe 9.
  • the water-stop surface 92 of the head of the water outlet end 91 of the water inlet pipe 9 (as shown in Figs.
  • the valve seat 8 is formed with a housing cavity 80, and the bottom 84 of the housing cavity 80 is arranged at the water outlet end 91 of the water inlet pipe 9 ,
  • the bottom 84 of the accommodating cavity 80 is provided with a water outlet channel 81 leading to the outer side wall 94 of the water outlet end of the water inlet pipe 9, and the accommodating cavity 80 is equipped with a needle valve pressure stop valve 5, and a back pressure pressure stop valve can also be installed,
  • the buoyancy control mechanism 2 controls the needle valve pressure stop valve 5 or the back pressure pressure stop valve to realize the on-off of the water flow.
  • the buoyancy control mechanism 2, the needle valve pressure stop valve 5, the back pressure pressure stop valve structure and the drainage principle are exactly the same as the bottom water inlet valve introduced above, and will not be repeated here.
  • the water outlet 82 of the water outlet channel 81 is exposed on the outer surface 89 of the accommodating cavity bottom, which is higher than the highest water level 7 set by the toilet tank, so that the water outlet 82 of the water outlet channel 81 is directly connected to the atmospheric pressure. Connected, no water seal will be formed between the water outlet channel 81 and the bottom of the toilet tank to prevent siphon generation and ensure that the anti-siphon function never fails.
  • the outlet 82 of the outlet channel 81 is close to the outer side wall 94 of the outlet end 91 of the water inlet pipe 9, and the outlet channel 81 is provided with an inclined surface 83 or an inclined channel so that the outlet 82 of the outlet channel 81 faces
  • the outer side wall 94 of the water outlet end 91 of the water inlet pipe 9 makes the water from the water outlet channel 91 flow downstream along the outer side wall 94 of the water inlet pipe 9 into the toilet tank to prevent the water from splashing.
  • a diversion tube 6 is sleeved on the water inlet pipe 9 and the upper end 61 of the diversion pipe 6 is in the shape of a funnel and is connected under the water outlet 82 of the water outlet channel 81. After the draft tube 6 is sheathed on the inlet pipe 9, the buoyancy control mechanism 2 is sheathed on the draft tube 6.

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Abstract

本发明公开一种防虹吸马桶水箱进水阀，包括阀座、压力止水阀、浮力控制机构、进水管，阀座上形成容置腔，容置腔的底部设置在进水管的出水端，容置腔的底部设有通向进水管的出水端外侧壁的出水通道,所述出水通道的出水口外露于容置腔底外表面，高于马桶水箱设定的最高水位线，压力止水阀安装在容置腔内，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。本案优点是出水通道的出水口直接外露在阀座底部，高于马桶水箱设定的最高水位线，这样出水通道的出水口直接与大气压相通，当进水管中的水在突然失压，通过出水通道的出水口向进水管直接补入大气压，使进水通道内的气压与外部保持相对平衡，防止虹吸产生，确保防虹吸功能永不失效。

Description

一种防虹吸马桶水箱进水阀 技术领域
本发明属于马桶水箱进水阀，特别涉及一种防虹吸压力止水马桶水箱进水阀。
背景技术
现有技术有马桶水箱进水阀，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。其中马桶水箱进水阀根据进水方式不同，分为侧进水式进水阀、底进水式进水阀,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，CN102345315U文献公开了一种侧进水式背压进水阀，包括阀体100、压力止水阀200、浮力控制机构300、进水管400，进水管400接置在阀体100的侧部，压力止水阀200包括上盖201、橡胶止水垫202、内芯管203，阀体100上形成竖向出水通道101，内芯管203横向设置在阀体100中，内芯管203与阀体100与之间形成横向进水通道102，内芯管出水端2031与竖向出水通道101相通，内芯管进水端2032端面形成止水面，橡胶止水垫202设置在内芯管进水端2032，上盖201将橡胶止水垫202与阀体100密封在一起，上盖201与橡胶止水垫202之间形成压力腔，压力腔分别有进水孔和泄压孔，进水孔与横向进水通道102相通，泄压孔外部设置浮力控制机构300。安装时，进水管400横向安装置在马桶水箱(图未视出)上，进水管400 与生活用水管网相接，通常使压力止水阀200高于马桶水箱有最高水位面以避免产生虹吸，造成马桶水箱中水依次通过进水管400、横向进水通道102、内芯管203、竖向出水通道101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300失去浮力，泄压孔被打开，水从进水管400、压力止水阀200、竖向出水通道101进入马桶水箱中，同时，一小部分水的通过进水孔进入压力腔，再通过泄压孔流出，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300动作堵住泄压孔，阻止泄压孔向外排水，因为压力腔的进水孔与进水管400相通，从而造成压力腔中的水压骤然增大，使得橡胶止水垫202发生弹性膨胀变形，堵住内芯管进水端2032的止水面，切断横向进水通道102与内芯管203之间的水流，达到止水的目的。
如图3所示，CN202274155U文献公开了一种底进水式背压进水阀，包括阀体1’、压力止水阀2’、浮力控制机构3’、进水管4’，进水管4’接连在阀体1’的下部，压力止水阀2’包括上盖21’、橡胶止水垫22’、内芯管23’，内芯管出水端231’端面形成止水面，内芯管进水端232’插置在进水管中形成竖向进水通道11’，内芯管23’与进水管4’之间通过设置密封圈实现密封，阀体1’外套接在进水管4’上，阀体1’与内芯管23’和进水管4’上之间形成竖向出水通道12’，橡胶止水垫22’设置在内芯管出水端231’，上盖21’与阀体1’密封在一起，上盖21’与橡胶止水垫22’之间形成压力腔24’，压力腔24’分别有进水孔241’和泄压孔242’，进水孔241’与竖向进水通道11’相通，泄压孔242’外部设置浮力控制机构3’。安装时，进水管4’竖向安装在马桶水箱(图未视出)上，进水管与生活用水 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，造成马桶水箱中水依次通过进水管4’、竖向进水通道11’、内芯管23’、竖向出水通道12’而进入生活用水管网中。使用时，原理同侧进水式马桶水箱进水阀的原理一样，亦是因马桶水箱的水被排出，从而使浮力控制机构3’失去浮力，泄压孔242’被打开，水从进水管4’和压力止水阀2’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’动作堵住泄压孔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，从而造成压力腔中的水压骤然增大，使得橡胶止水垫发生弹性膨胀变形，堵住内芯管出水端231’的止水面，切断竖向进水通道11’与竖向出水通道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，上述两种马桶水箱进水阀需要进行防虹吸设计，如图1、图2所示，侧进水式进水阀的竖向出水通道101的出水口伸向马桶水箱底部，远底于马桶水箱设定有最高水位线，竖向出水通道与马桶水箱底部之间容易形成水封，故，在内芯管出水端2031与竖向出水通道101之间设置有防虹吸塞500，当进水管中的水在突然失压时，造成橡胶止水垫202不能堵住内芯管的止水面，防虹吸塞500因倒吸堵塞内芯管出水端2031，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。如图3所示，底进水式进水阀的竖向出水通道12’的出水口亦伸向马桶水箱底部，远底于马桶水箱设定有最高水位线，竖向出水通道与马桶水箱底部之间容易形成水封，故，在竖向出水通道中设置有防虹吸垫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’的止水面，防虹吸垫5’因倒吸封住竖向出水通道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，对马桶水箱进水阀进行了改进。
发明内容
本发明的目的在于提供一种防虹吸马桶水箱进水阀，当进水管中的水在突然失压，能够讯速使进水通道内的气压与外部保持相对平衡，防止虹吸产生，确保防虹吸功能永不失效。
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进水阀，包括阀座、压力止水阀、浮力控制机构、进水管，阀座上形成容置腔，容置腔的底部设置在进水管的出水端，容置腔的底部设有通向进水管的出水端外侧壁的出水通道,所述出水通道的出水口外露于容置腔底外表面，高于马桶水箱设定的最高水位线，压力止水阀安装在容置腔内，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。
进一步，所述的压力止水阀包括上盖、橡胶止水垫、内芯管，内芯管出水端端面形成止水面，内芯管进水端插置在进水管中形成竖向进水通道，内芯管与进水管之间通过设置密封圈实现密封，橡胶止水垫设置在内芯管出水端，上盖将橡胶止水垫与阀体密封在一起，上盖与橡胶止水垫之间形成压力腔，压力腔分别有进水孔和泄压孔，进水孔与竖向进水通道相通，浮力控制机构控制泄压孔开启或关闭。
进一步，所述的进水管的出水端的头部为止水面，所述的压力止水阀包括上盖、止水垫，上盖将止水垫密封在阀座的容置腔内，止水垫位于进水管的出水端的头部止水面处，止水垫与上盖之间形成压力腔，压力腔分别有进 水孔和泄压孔，进水孔与进水管相通，浮力控制机构控制泄压孔开启或关闭。
进一步，所述的压力止水阀为背压压力止水阀，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的顶部，所述的浮力控制机构包括水箱、浮桶、连接杆、摆杆，摆杆上对应泄压孔处设置所述的背压垫，摆杆一端枢设在上盖上，摆杆另一端通过连接杆与浮桶连接，浮桶置于水箱中，水箱套在进水管上。
进一步，所述的压力止水阀为针阀压力止水阀，包括上端盖、止水垫、不锈钢针，所述的泄压通孔贯穿设置在止水垫上，所述的进水通孔亦设置在止水垫上，不锈钢针穿过上端盖插在泄压通孔中，不锈钢针上设有过水槽，所述的浮力控制机构包括水箱、浮桶、连接杆、摆杆，摆杆上对应泄压孔处设有不锈钢针，摆杆一端枢设在上端盖上，摆杆另一端通过连接杆与浮桶连接，浮桶置于水箱中，水箱套在进水管上。
进一步，所述出水通道的出水口靠近进水管的出水端外侧壁，所述出水通道设有斜面，使出水通道的出水口朝向进水管的出水端外侧壁。
进一步，所述出水通道的出水口靠近进水管的出水端外侧壁，所述出水通道为斜通道，使出水通道的出水口朝向进水管的出水端外侧壁。
进一步，所述的阀座与进水管的出水端一体成形。
进一步，所述的阀座卡接或螺接在进水管的出水端。
进一步，所述的马桶水箱进水阀为底进水式进水阀，即进水管的进水端安装在马桶水箱底部。
进一步，所述的马桶水箱进水阀为侧进水式进水阀，即进水管的进水端安装在马桶水箱侧部。
进一步，所述的进水管上套有导流管，所述的浮力控制机构套置在导流管上。
本案与现在技术相比，主要优势在于：出水通道的出水口直接外露在阀 座底部，高于马桶水箱设定的最高水位线，这样出水通道的出水口直接与大气压相通，出水通道不会与马桶水箱底部之间形成水封，当进水管中的水在突然失压，造成橡胶止水垫不能堵住进水管的止水面时，通过出水通道的出水口向进水管直接补入大气压，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，也去防虹吸垫或防虹吸塞部。
附图说明
图1是现有的侧进水式进水阀的侧剖图；
图2是现有的侧进水式进水阀的俯视图；
图3是现有的底进水式进水阀的侧剖图；
图4是本发明的底进水式进水阀立体图；
图5是本发明的底进水式背压进水阀进水状态示意图；
图6是本发明的底进水式背压进水阀剖视图二；
图7是本发明的底进水式背压进水阀进水状态分解图；
图8是本发明的底进水式背压进水阀止水状态剖视图；
图9是本发明的底进水式背压进水阀的工作原理图一；
图10是本发明的底进水式背压进水阀的橡胶止水垫与上盖配合示意图；
图11是本发明的底进水式针阀进水阀止水状态剖视图；
图12是本发明的底进水式针阀进水阀剖视图一；
图13是本发明的底进水式针阀进水阀的剖视图二；
图14是本发明的底进水式针阀进水阀的剖视分解图；
图15是本发明的底进水式针阀进水阀的工作原理图一；
图16是本发明的底进水式针阀进水阀的止水垫与不锈针分解示意图；
图17是本发明的底进水式进水阀阀座与进水管卡接拆解示意图；
图18是本发明的底进水式背压进水阀阀座与进水管卡接分解示意图；
图19是本发明的底进水式背压进水阀阀座与进水管卡接装配示意图；
图20是本发明的底进水式进水阀阀座与进水管螺纹连接拆解示意图；
图21是本发明的底进水式背压进水阀阀座与进水管螺纹连接分解示意图；
图22是本发明的底进水式背压进水阀阀座与进水管螺纹连接装配示意图；
图23是本发明的底进水式针阀进水阀阀座与进水管卡接分解示意图；
图24是本发明的底进水式针阀进水阀阀座与进水管螺纹连接分解示意图；
图25是本发明的侧进水式进水阀立体图一；
图26是本发明的侧进水式针阀进水阀止水状态剖视图一；
图27是本发明的侧进水式针阀进水阀剖视图二；
图28是本发明的侧进水式针阀进水阀立体图二；
[根据细则91更正 23.09.2019]　
图29是本发明的侧进水式针阀进水阀的剖视分解图；
图30是本发明的侧进水式针阀进水阀的工作原理图一。
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。
众所周知，马桶水箱进水阀根据进水方式不同，分为侧进水式进水阀、底进水式进水阀,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。本发明先以底进水式进水阀的实施例作重点介绍，本发明专利的结构关系及原理对于侧进水式进水阀同样适用，再对侧进水式进水阀的实施例作简要介绍。
如图4所示，一种马桶水箱底进水式进水阀，包括阀座1、压力止水阀、浮力控制机构2、进水管3，阀座1上形成容置腔，容置腔的底部设置在进水管3的出水端，容置腔的底部设有通向进水管的出水端外侧壁的出水通道,所述出水通道的出水口外露于容置腔底外表面，高于马桶水箱设定的最高水位线，压力止水阀安装在容置腔内，压力止水阀为现有技术，压力止水阀包括上盖、橡胶止水垫、内芯管，内芯管出水端端面形成止水面，内芯管进水端插置在进水管中形成竖向进水通道，内芯管与进水管之间通过设置密封圈实现密封，橡胶止水垫设置在内芯管出水端，上盖将橡胶止水垫与阀体密封在一起，上盖与橡胶止水垫之间形成压力腔，压力腔分别有进水孔和泄压孔，进水孔与竖向进水通道相通，浮力控制机构2打开或封堵泄压孔使压力止水阀内部形成水压或泄压实现水流的通断。其中，马桶水箱底进水式进水阀根据压力止水阀结构方式不同，又分为底进水式背压进水阀、底进水式针阀进 水阀。
如图5、图6、图7、图8所示，一种底进水式背压进水阀，包括阀座1、背压压力止水阀4、浮力控制机构2、进水管3。阀座1上形成安装阀背压压力止水阀4的容置腔10，容置腔10的底部14设置在进水管3的出水端31，容置腔10的底部14设有通向进水管3的出水端外侧壁34的出水通道11,进水管3的出水端31的头部为止水面32(如图9所示)，背压压力止水阀4主要包括上盖42、橡胶止水垫43、背压垫48，上盖42将橡胶止水垫43密封在阀座1的容置腔10内，橡胶止水垫43位于进水管3的出水端31的头部止水面32处，橡胶止水垫43与上盖42之间形成压力腔45，压力腔45分别有进水孔46和泄压孔47，进水孔46设置在上盖42的导柱49上(如图10所示)，导柱49穿透过橡胶止水垫43,给橡胶止水垫43起导向作用，进水孔46与进水管3相通(如图5所示)，泄压孔47设置在上盖42上，所述的浮力控制机构2为现有马桶进水阀常用结构，为现有技术，包括水箱20、浮桶21、连接杆22、摆杆23，摆杆23上对应泄压孔47处设有背压垫48，摆杆23一端枢设在上盖42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3上，当浮桶21在水箱20中失去浮力时，摆杆23在上盖42上转动落下，背压垫48离开泄压孔47,泄压孔47被打开，当浮桶21在水箱20中受到浮力作用时，摆杆23在上盖42上转动抬起，背压垫48堵住泄压孔47,泄压孔47被关闭。
如图5-图10所示，上述的进水管3竖向安装置在马桶水箱(图未视出)上，进水管3的进水端装置在马桶水箱底部与生活用水管网(图未视出)相接，通常背压压力止水阀4高于马桶水箱的最高水位面以避免产生虹吸，造成马桶水箱中水依次通过出水通道11、进水管3而进入生活用水管网中。使用时，因马桶水箱的水被排出，从而导致浮力控制机构2的水箱20的水漏出， 浮桶21失去浮力，摆杆23未向上抬起，背压垫24没有堵住泄压孔47，所以从进水孔46流入压力腔45的水能从泄压孔4排出，橡胶止水垫43的内侧的压力腔45不会产生水压，橡胶止水垫43在进水压力的作用下持续向上盖42一侧变形，橡胶止水垫43与进水管3的出水端31的头部止水面32相分离，生活用水管网的从进水管3进入，再从出水通道11流入马桶水箱，达到进水的目的。当马桶水箱中水上升到满过浮桶21时，浮桶21浮起带动摆杆23抬起，摆杆23上的背压垫24压住泄压孔47，使流入橡胶止水垫43的内侧的压力腔45的水压越来越大，大到超过橡胶止水垫43外侧的进水水压，橡胶止水垫43发生弹性变形压在进水管3的出水端31的头部止水面32上，关闭进水，实现自动止水功能。
如图11、图12、图13、图14所示，一种底进水式针阀进水阀，与一种底进水式背压进水阀相同的是阀座1、浮力控制机构2、进水管3,不同的是针阀压力止水阀5代替背压压力止水阀4。阀座1上形成安装针阀压力止水阀5的容置腔10，容置腔10的底部14设置在进水管3的出水端31，容置腔10的底部14设有通向进水管3的出水端外侧壁34的出水通道11,进水管3的出水端31的头部为止水面32(如图19、图20、图21所示)，针阀压力止水阀5主要包括上端盖52、止水垫53、不锈钢针58，上端盖52将止水垫53密封在阀座1的容置腔10内，止水垫53位于进水管3的出水端31的头部止水面32处，止水垫53与上端盖52之间形成压力空腔55，压力空腔55分别有进水通孔56和泄压通孔57，泄压通孔57贯穿设置在止水垫53上，进水通孔56亦设置在止水垫53上，所述的浮力控制机构2为现有马桶进水阀常用结构，为现有技术，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57处设有不锈钢针58,不锈钢针58穿过上端盖52插在泄压通孔57 中，不锈钢针58上设有过水槽59(如图16所示)，摆杆23一端枢设在上端盖52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3上，当浮桶21在水箱20中失去浮力时，摆杆23在上端盖52上转动落下，不锈钢针58从泄压孔47中部分抽出,泄压孔47被打开，当浮桶21在水箱20中受到浮力作用时，摆杆23在上端盖52上转动抬起，不锈钢针58完全插入泄压孔47中，堵住泄压孔47,泄压孔47被关闭。
如图11-图16所示，上述的进水管3竖向安装置在马桶水箱(图未视出)上，进水管3的进水端装置在马桶水箱底部与生活用水管网(图未视出)相接，，通常针阀压力止水阀5高于马桶水箱的最高水位面以避免产生虹吸，造成马桶水箱中水依次通过出水通道11、进水管3而进入生活用水管网中。使用时，因马桶水箱的水被排出，从而导致浮力控制机构2的水箱20的水漏出，浮桶21失去浮力，当水箱中的水未上升到浮桶位置时,摆杆23未抬起，不锈钢针58没有完全插入堵住止水垫53顶部的泄压通孔57中，所以流入止水垫53内侧的水能从泄压通孔57排出，止水垫53的内侧压力空腔55不会产生水压，止水垫53在进水压力的作用下持续向上端盖52一侧变形，止水垫53与进水管3的止水面32相分离，生活用水管网的从进水管3进入，再从出水通道11流入马桶水箱，达到进水的目的。当马桶水箱中水上升到满过浮桶21时，浮桶21浮起带动摆杆23抬起，摆杆23上的不锈钢针58完全插入止水垫53顶部的泄压通孔57中，使流入止水垫53内侧的水无法排出,止水垫53内侧的水压越来越大，大到超过止水垫53外侧的进水水压，止水垫53发生弹性变形压在进水管3的止水面32上，关闭进水，实现自动止水功能。
以上列举的两种底进水式马桶水箱进水阀与现有技术相比主要优势在于：省去了内芯管，用进水管代替了内芯管，使进水管具有内芯管功能，即直接在进水管的出水端端面形成止水面，相对于底进水式马桶水箱进水阀省去了内芯管部件，减少内芯管在阀座内的安装，且减少不必要的漏水点,相对于侧进水式进水阀，阀体制造更简单。
再如图5-8、图11-14所示，阀座1的容置腔10的底部设置在进水管3的出水端31，阀座1的容置腔10的底部14上形成出水通道11，出水通道11的出水口12外露于容置腔底外表面19，高于马桶水箱设定的最高水位线。高于马桶水箱设定的最高水位线7，这样出水通道11的出水口12直接与大气压相通，出水通道11与马桶水箱底部之间不会形成水封，当进水管3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管3的出水端31的头部止水面32时，通过出水通道11的出水口12向进水管3中直接补入大气压，使进水通道11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，且阀座结构可以设计得更简单。
再如图5、图12所示，出水通道11的出水口12靠近进水管3的出水端31的外侧壁34，出水通道11设有斜面13，使出水通道11的出水口12朝向进水管3的出水端31的外侧壁34，当然，所述出水通道11也可为斜通道，使出水通道11的出水口12朝向进水管3的出水端31的外侧壁34，从而使从出水通道11的水沿进水管3的外侧壁34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11的出水口12外露于容置腔底外表面15，并非相对封闭的空管，水在管道内流动不会形成共鸣，进水噪音也会变小。
如图4、图5、图12所示，为了更好地防止水的飞溅，在进水管3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11的出水口12的下方。当然在进水管3上套有导流管6后，浮力控制机构2就套置在导流管6上。
再如图5-8、图11-14所示，阀座1的容置腔10的底部14与进水管3的出水端31一体成形。当然，这样阀座1在进水管3上不可以移动，特别对于底进水式进水阀而言，阀座1在进水管3上不可以调整高度，导致背压压力止水阀4、针阀压力止水阀5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，只要进水管高度设置得合适，可以满足常用马桶水箱的安装需要。
鉴于此，阀座的容置腔的底部活动安装在进水管的出水端，如图17、图18、图19、图23所示，阀座1的容置腔10的底部14卡接在进水管3的出水端31,出水端31的侧面向外伸出卡齿35，阀座1的容置腔10的底部14形成套接管15,套接管15内壁形成卡槽16,阀座1通过卡齿35旋入卡槽16中而卡接在进水管3的出水端31上。也可如图20、图21、图22、图24所示，所述的阀座1螺接在进水管3的出水端31,出水端31的侧面形成外螺纹36，阀座1的容置腔10的底部14形成套接管15,套接管15内壁形成内螺纹17,阀座1通过内螺纹17旋入外螺纹36而螺接接在进水管3的出水端31上。如此，可以根据马桶水箱的高低，选择不同高度套接管的阀座1，以匹配不同高度的马桶水箱，也方便阀座1和背压压力止水阀4、针阀压力止水阀5从进水管上方便装配和拆卸，在压力止水阀失效时，更换新的背压压力止水阀4、针阀压力止水阀5。
以上通过底进水式进水阀的实施例对本发明关于进水管结构改进、防虹吸、阀座可折换等创新点做了完整介绍，其中关于进水管结构改进、防虹吸有创新点对于侧进水式进水阀同样适用，以下列举侧进水式针阀进水阀进行说明。
如图25-图30所示，一种马桶水箱侧进水式进水阀，包括阀座8、压力止水阀、浮力控制机构2、进水管9。进水管9的出水端91的头部为止水面92(如图29、图30所示)，阀座8上形成容置腔80，容置腔80的底部84设置在进水管9的出水端91，容置腔80的底部84设有通向进水管9的出水端外侧壁94的出水通道81,容置腔80安装针阀压力止水阀5,同样可以选择安装背压压力止水阀，浮力控制机构2控制针阀压力止水阀5或背压压力止水阀实现水流的通断。其浮力控制机构2、针阀压力止水阀5、背压压力止水阀结构及实现排水原理与以上介绍的底进水式进水阀完全相同，这里不再赘述。
再如图27、图28所示，出水通道81的出水口82外露于容置腔底外表面89，高于马桶水箱设定的最高水位线7，这样出水通道81的出水口82直接与大气压相通，出水通道81与马桶水箱底部之间不会形成水封，防止虹吸产生，确保防虹吸功能永不失效。
再如图27、图28所示，出水通道81的出水口82靠近进水管9的出水端91的外侧壁94，出水通道81设有斜面83或斜通道，使出水通道81的出水口82朝向进水管9的出水端91的外侧壁94，使从出水通道91的水沿进水管9的外侧壁94顺流到马桶水箱中，防止水乱溅。更好地防止水的飞溅，在进水管9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81的出水口82的下方。在进水管9上套有导流管6后，浮力控制机构2就套置在导流管6上。
以上显示和描述了本发明的基本原理和主要特征以及本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (10)

  1. 一种防虹吸马桶水箱进水阀，包括阀座、压力止水阀、浮力控制机构、进水管，其特征在于：阀座上形成容置腔，容置腔的底部设置在进水管的出水端，容置腔的底部设有通向进水管的出水端外侧壁的出水通道,所述出水通道的出水口外露于容置腔底外表面，高于马桶水箱设定的最高水位线，压力止水阀安装在容置腔内，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。
  2. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的压力止水阀包括上盖、橡胶止水垫、内芯管，内芯管出水端端面形成止水面，内芯管进水端插置在进水管中形成竖向进水通道，内芯管与进水管之间通过设置密封圈实现密封，橡胶止水垫设置在内芯管出水端，上盖将橡胶止水垫与阀体密封在一起，上盖与橡胶止水垫之间形成压力腔，压力腔分别有进水孔和泄压孔，进水孔与竖向进水通道相通，浮力控制机构控制泄压孔开启或关闭。
  3. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的进水管的出水端的头部为止水面，所述的压力止水阀包括上盖、止水垫，上盖将止水垫密封在阀座的容置腔内，止水垫位于进水管的出水端的头部止水面处，止水垫与上盖之间形成压力腔，压力腔分别有进水孔和泄压孔，进水孔与进水管相通，浮力控制机构控制泄压孔开启或关闭。
  4. 如权利要求3所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的压力止水阀为背压压力止水阀，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，所述的浮力控制机构包括水箱、浮桶、连接杆、摆杆，摆杆上对应泄压孔处设置所述的背压垫，摆杆一端枢设在上盖上，摆杆另一端通过连接杆与 浮桶连接，浮桶置于水箱中，水箱套在进水管上。
  5. 如权利要求3所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的压力止水阀为针阀压力止水阀，包括上端盖、止水垫、不锈钢针，所述的泄压通孔贯穿设置在止水垫上，所述的进水通孔亦设置在止水垫上，不锈钢针穿过上端盖插在泄压通孔中，不锈钢针上设有过水槽，所述的浮力控制机构包括水箱、浮桶、连接杆、摆杆，摆杆上对应泄压孔处设有不锈钢针，摆杆一端枢设在上端盖上，摆杆另一端通过连接杆与浮桶连接，浮桶置于水箱中，水箱套在进水管上。
  6. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述出水通道的出水口靠近进水管的出水端外侧壁，所述出水通道设有斜面或斜通道，使出水通道的出水口朝向进水管的出水端外侧壁。
  7. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的阀座与进水管的出水端一体成形。
  8. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的阀座卡接或螺接在进水管的出水端。
  9. 如权利要求1所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的马桶水箱进水阀为底进水式进水阀或侧进水式进水阀。
  10. 如权利要求9所述的一种防虹吸马桶水箱进水阀，其特征在于：所述的进水管上套有导流管，所述的浮力控制机构套置在导流管上。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033647A (zh) * 2014-06-06 2014-09-10 厦门立业卫浴工业有限公司 一种进水阀的防止小漏水装置
US20160069470A1 (en) * 2014-09-08 2016-03-10 Anthony R. Brandelli Hydraulic valve
CN107558550A (zh) * 2016-07-01 2018-01-09 吉博力国际股份公司 进水套件
CN108443564A (zh) * 2017-01-24 2018-08-24 厦门立业卫浴工业有限公司 一种止水阀

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033647A (zh) * 2014-06-06 2014-09-10 厦门立业卫浴工业有限公司 一种进水阀的防止小漏水装置
US20160069470A1 (en) * 2014-09-08 2016-03-10 Anthony R. Brandelli Hydraulic valve
CN107558550A (zh) * 2016-07-01 2018-01-09 吉博力国际股份公司 进水套件
CN108443564A (zh) * 2017-01-24 2018-08-24 厦门立业卫浴工业有限公司 一种止水阀

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