CN110106948A - A kind of anti-siphonic closet tank intake valve of water - Google Patents

A kind of anti-siphonic closet tank intake valve of water Download PDF

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Publication number
CN110106948A
CN110106948A CN201910470672.1A CN201910470672A CN110106948A CN 110106948 A CN110106948 A CN 110106948A CN 201910470672 A CN201910470672 A CN 201910470672A CN 110106948 A CN110106948 A CN 110106948A
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CN
China
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water
valve
pressure
inlet pipe
water inlet
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CN201910470672.1A
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CN110106948B (en
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张子鹏
刘永茂
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LAB (XIAMEN) SANITARY FITTINGS Inc
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LAB (XIAMEN) SANITARY FITTINGS Inc
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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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

The present invention discloses a kind of anti-siphonic closet tank intake valve of water, including valve seat, pressure water check valve, buoyancy control mechanism, water inlet pipe, accommodating cavity is formed on valve seat, the water outlet of water inlet pipe is arranged in the bottom of accommodating cavity, the bottom of accommodating cavity is equipped with the exhalant canal for leading to the water outlet lateral wall of water inlet pipe, the water outlet of the exhalant canal exposes to accommodating cavity bottom outer surface, higher than the maximum water level of cistern setting, pressure water check valve is mounted in accommodating cavity, and buoyancy control mechanism makes to form hydraulic pressure inside pressure water check valve or the on-off of water flow is realized in pressure release.This case advantage is that the water outlet of exhalant canal is directly exposed at seat bottom portion, higher than the maximum water level of cistern setting, the water outlet of exhalant canal so is directly communicated with atmospheric pressure, when the water in water inlet pipe is in rapid decompression, atmospheric pressure is directly filled into water inlet pipe by the water outlet of exhalant canal, make the air pressure and external holding relative equilibrium in intake tunnel, prevents siphon from generating, it is ensured that anti-siphon function never fails.

Description

A kind of anti-siphonic closet tank intake valve of water
Technical field
The invention belongs to toilet water tank water inlet valve, in particular to a kind of anti-siphon pressure sealing toilet water tank water inlet valve.
Background technique
The prior art has toilet water tank water inlet valve, and water inlet or resistance are mainly realized using the hydraulic pressure in domestic water pipe network Break, including valve body, pressure water check valve, buoyancy control mechanism, water inlet pipe, pressure water check valve are mounted on valve body, valve body, which connects, to be set On water inlet pipe, buoyancy control mechanism makes to form hydraulic pressure inside pressure water check valve or the on-off of water flow is realized in pressure release.Wherein closestool water Case inlet valve is divided into side inlet type inlet valve, bottom inlet type inlet valve, according to pressure water stop valve structure according to water intake mode difference Mode is different, and is divided into back pressure inlet valve, needle-valve inlet valve.
As shown in Figure 1 and Figure 2, CN102345315U document discloses a kind of side inlet type back pressure inlet valve, including valve body 100, pressure water check valve 200, buoyancy control mechanism 300, water inlet pipe 400, water inlet pipe 400, which connects, to be set in the side of valve body 100, pressure Power water check valve 200 includes upper cover 201, rubber water-proof pad 202, inner core tube 203, forms vertical exhalant canal 101 on valve body 100, Inner core tube 203 is horizontally installed in valve body 100, inner core tube 203 and valve body 100 and between form lateral intake tunnel 102, it is interior Core pipe water outlet 2031 is communicated with vertical exhalant canal 101, and 2032 end face of inner core tube water inlet end forms sealing face, rubber water-proof Pad 202 is arranged in inner core tube water inlet end 2032, and rubber water-proof pad 202 and valve body 100 are sealed by upper cover 201, upper cover Pressure chamber is formed between 201 and rubber water-proof pad 202, pressure chamber has inlet opening and relief hole, inlet opening and laterally water inlet respectively Channel 102 communicates, and buoyancy control mechanism 300 is arranged outside relief hole.When installation, water inlet pipe 400, which is transversely mounted, to be set in closestool water On case (figure does not regard out), water inlet pipe 400 connects with domestic water pipe network, there is pressure water check valve 200 higher than cistern Water is caused in cistern to pass sequentially through water inlet pipe 400, lateral intake tunnel 102, interior to avoid siphon is generated in peak level face Core pipe 203, vertical exhalant canal 101 and enter domestic water pipe network in.In use, the water because of cistern is discharged, thus Make 300 loss of buoyance of buoyancy control mechanism, relief hole is opened, and water is logical from water inlet pipe 400, pressure water check valve 200, vertical water outlet Road 101 enters in cistern, meanwhile, sub-fraction water enters pressure chamber by inlet opening, then is flowed out by relief hole, this When achieve the purpose that into water;When the water level in cistern rises to predetermined position, the movement of triggering buoyancy control mechanism 300 is stifled Firmly relief hole prevents relief hole from draining outward, because the inlet opening of pressure chamber is communicated with water inlet pipe 400, to cause stress chamber In hydraulic pressure increase suddenly so that rubber water-proof pad 202 occur elastic expansion deformation, block the sealing of inner core tube water inlet end 2032 Face cuts off the water flow between lateral intake tunnel 102 and inner core tube 203, achievees the purpose that sealing.
As shown in figure 3, CN202274155U document discloses a kind of bottom inlet type back pressure inlet valve, including valve body 1 ', pressure Power water check valve 2 ', buoyancy control mechanism 3 ', water inlet pipe 4 ', in succession in the lower part of valve body 1 ', pressure water check valve 2 ' wraps water inlet pipe 4 ' Upper cover 21 ', rubber water-proof pad 22 ', inner core tube 23 ' are included, 231 ' end face of inner core tube water outlet forms sealing face, inner core tube water inlet end 232 ' are plugged in water inlet pipe and form vertical intake tunnel 11 ', real by setting sealing ring between inner core tube 23 ' and water inlet pipe 4 ' Now seal, be socketed on water inlet pipe 4 ' outside valve body 1 ', on valve body 1 ' and inner core tube 23 ' and water inlet pipe 4 ' between formed and be vertically discharged Channel 12 ', rubber water-proof pad 22 ' are arranged in inner core tube water outlet 231 ', and upper cover 21 ' is sealed with valve body 1 ', upper cover Pressure chamber 24 ' is formed between 21 ' and rubber water-proof pad 22 ', pressure chamber 24 ' has inlet opening 241 ' and relief hole 242 ' respectively, into Water hole 241 ' is communicated with vertical intake tunnel 11 ', and relief hole 242 ' is external to be arranged buoyancy control mechanism 3 '.When installation, water inlet pipe 4 ' are mounted vertically on cistern (figure does not regard out), and water inlet pipe connects with domestic water pipe network, usually makes pressure water check valve 2 ' There is peak level face higher than cistern to avoid siphon is generated, water is caused in cistern to pass sequentially through water inlet pipe 4 ', vertical Intake tunnel 11 ', inner core tube 23 ', vertical exhalant canal 12 ' and enter domestic water pipe network in.In use, the ipsilateral water inlet of principle The principle of formula toilet water tank water inlet valve is the same, is also because the water of cistern is discharged, so that buoyancy control mechanism 3 ' be made to lose Buoyancy, relief hole 242 ' are opened, and water enters in cistern from water inlet pipe 4 ' and pressure water check valve 2 ', meanwhile, sub-fraction Water by inlet opening 241 ' enter pressure chamber 24 ', then by relief hole 242 ' flow out, achieve the purpose that at this time into water;Work as horse When water level in bucket water tank rises to predetermined position, relief hole 242 ' is blocked in the movement of triggering buoyancy control mechanism 3 ', prevents pressure release Hole 242 ' drains outward, because the inlet opening 241 ' of pressure chamber is communicated with water inlet pipe 4 ', so that the hydraulic pressure caused stress in chamber is rapid So increase, so that elastic expansion deformation occurs for rubber water-proof pad, block the sealing face of inner core tube water outlet 231 ', cutting vertically into Water flow between aquaporin 11 ' and vertical exhalant canal 12 ', achievees the purpose that sealing.
The water in domestic water pipe network is contaminated in order to prevent, and above two toilet water tank water inlet valve needs to carry out anti-siphon Design, as shown in Figure 1 and Figure 2, the water outlet of the vertical exhalant canal 101 of side inlet type inlet valve stretches to cistern bottom, far Bottom is set with maximum water level in cistern, water seal easy to form between vertical exhalant canal and cistern bottom, therefore, It is provided with anti-siphon plug 500 between inner core tube water outlet 2031 and vertical exhalant canal 101, when the water in water inlet pipe loses suddenly When pressure, cause rubber water-proof pad 202 that cannot block the sealing face of inner core tube, anti-siphon plug 500 is because of suck-back blocking inner core tube water outlet End 2031, prevents the aqueous reflux of cistern from entering in domestic water pipe network, avoids the water in domestic water pipe network contaminated.Such as Shown in Fig. 3, the water outlet of the vertical exhalant canal 12 ' of bottom inlet type inlet valve also stretches to cistern bottom, and remote bottom is in closestool Water tank is set with maximum water level, water seal easy to form between vertical exhalant canal and cistern bottom, therefore, vertically it is being discharged It is provided with anti-siphon pad 5 ' in channel, when the water in water inlet pipe 4 ' is in rapid decompression, causes rubber water-proof pad 22 ' that cannot block The sealing face of inner core tube 23 ', anti-siphon pad 5 ' vertical exhalant canal 12 ' because suck-back seals, prevents the aqueous reflux of cistern from entering In domestic water pipe network, avoid the water in domestic water pipe network contaminated.
For this purpose, the present inventor is directed to above-mentioned disadvantage, toilet water tank water inlet valve is improved.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-siphonic closet tank intake valve of water, when the water in water inlet pipe loses suddenly Pressure, can interrogate speed makes air pressure and outside in intake tunnel keep relative equilibrium, prevents siphon from generating, it is ensured that anti-siphon function is forever It does not fail.
To achieve the goals above, technical scheme is as follows:
A kind of anti-siphonic closet tank intake valve of water, including valve seat, pressure water check valve, buoyancy control mechanism, water inlet pipe, valve seat The water outlet of water inlet pipe is arranged in upper formation accommodating cavity, the bottom of accommodating cavity, and the bottom of accommodating cavity, which is equipped with, leads to going out for water inlet pipe The exhalant canal of water end (W.E.) lateral wall, the water outlet of the exhalant canal expose to accommodating cavity bottom outer surface, set higher than cistern Fixed maximum water level, pressure water check valve are mounted in accommodating cavity, and buoyancy control mechanism makes to form hydraulic pressure inside pressure water check valve Or the on-off of water flow is realized in pressure release.
Further, the pressure water check valve includes upper cover, rubber water-proof pad, inner core tube, inner core tube water outlet end face shape At sealing face, inner core tube water inlet end, which is plugged in water inlet pipe, forms vertical intake tunnel, by setting between inner core tube and water inlet pipe It sets sealing ring and realizes sealing, rubber water-proof pad is arranged in inner core tube water outlet, and upper cover is by rubber water-proof pad and valve seal one It rises, forms pressure chamber between upper cover and rubber water-proof pad, pressure chamber has inlet opening and relief hole, inlet opening and vertical water inlet respectively Channel communicates, and buoyancy control mechanism controls relief hole opens or closes.
Further, the water surface until the head of the water outlet of the water inlet pipe, the pressure water check valve include upper cover, stop Waterstop pad is sealed in the accommodating cavity of valve seat by water cushion, upper cover, and waterstop pad is located at the head sealing face of the water outlet of water inlet pipe, Pressure chamber is formed between waterstop pad and upper cover, pressure chamber has inlet opening and relief hole respectively, and inlet opening is communicated with water inlet pipe, buoyancy Control mechanism control relief hole opens or closes.
Further, the pressure water check valve is back-pressure water check valve, including upper cover, rubber water-proof pad, back pressure pad, institute The inlet opening stated is arranged on the guide post of upper cover, and guide post is perforated through rubber water-proof pad, and the top of upper cover is arranged in the relief hole Portion, the buoyancy control mechanism include water tank, keg float, connecting rod, swing rod, correspond on swing rod and the back is arranged at relief hole Pressure pad, swing rod one end are hubbed on lid, and the swing rod other end is connect by connecting rod with keg float, and keg float is placed in water tank, water tank It covers on water inlet pipe.
Further, the pressure water check valve is needle-valve pressure water check valve, including upper end cover, waterstop pad, stainless pin, institute Through being arranged on waterstop pad, the inlet through hole is also arranged on waterstop pad the pressure release through-hole stated, and stainless pin passes through upper End cap is inserted in pressure release through-hole, and stainless pin is equipped with water-carrying groove, and the buoyancy control mechanism includes water tank, keg float, connection Bar, swing rod correspond on swing rod and are equipped with stainless pin at relief hole, and swing rod one end is hubbed on upper end cover, and the swing rod other end passes through Connecting rod is connect with keg float, and keg float is placed in water tank, and water tank cover is on water inlet pipe.
Further, close to the water outlet lateral wall of water inlet pipe, the exhalant canal is equipped with the water outlet of the exhalant canal Inclined-plane makes water outlet lateral wall of the water outlet of exhalant canal towards water inlet pipe.
Further, for the water outlet of the exhalant canal close to the water outlet lateral wall of water inlet pipe, the exhalant canal is oblique Channel makes water outlet lateral wall of the water outlet of exhalant canal towards water inlet pipe.
Further, the water outlet of the valve seat and water inlet pipe is integrally formed.
Further, the valve seat is clamped or is screwed onto the water outlet of water inlet pipe.
Further, the toilet water tank water inlet valve is bottom inlet type inlet valve, i.e. the water inlet end of water inlet pipe is mounted on horse Bucket water tank bottom.
Further, the toilet water tank water inlet valve is side inlet type inlet valve, i.e. the water inlet end of water inlet pipe is mounted on horse Bucket water tank side.
Further, diversion pipe is cased on the water inlet pipe, the buoyancy control mechanism is nested on diversion pipe.
Compared with present technology, main advantage is for this case: the water outlet of exhalant canal is directly exposed at seat bottom portion, high In the maximum water level of cistern setting, the water outlet of such exhalant canal is directly communicated with atmospheric pressure, and exhalant canal will not Form water seal between cistern bottom, when the water in water inlet pipe is in rapid decompression, cause rubber water-proof pad cannot block into When the sealing face of water pipe, atmospheric pressure is directly filled into water inlet pipe by the water outlet of exhalant canal, makes the air pressure in intake tunnel Relative equilibrium is kept with outside, prevents siphon from generating, while ensuring that anti-siphon function never fails, also removes anti-siphon pad or anti-rainbow Inhale piston part.
Detailed description of the invention
Fig. 1 is the sectional side view of existing side inlet type inlet valve;
Fig. 2 is the top view of existing side inlet type inlet valve;
Fig. 3 is the sectional side view of existing bottom inlet type inlet valve;
Fig. 4 is bottom inlet type inlet valve perspective view of the invention;
Fig. 5 is bottom inlet type back pressure water intake valve status diagram of the invention;
Fig. 6 is bottom inlet type back pressure inlet valve cross-sectional view two of the invention;
Fig. 7 is bottom inlet type back pressure water intake valve state decomposition figure of the invention;
Fig. 8 is inlet type back pressure water inlet valve seal state cross-sectional view in bottom of the invention;
Fig. 9 is the working principle diagram one of bottom inlet type back pressure inlet valve of the invention;
Figure 10 is that the rubber water-proof pad of bottom inlet type back pressure inlet valve of the invention and upper cover cooperate schematic diagram;
Figure 11 is inlet type needle-valve water inlet valve seal state cross-sectional view in bottom of the invention;
Figure 12 is bottom inlet type needle-valve inlet valve cross-sectional view one of the invention;
Figure 13 is the cross-sectional view two of bottom inlet type needle-valve inlet valve of the invention;
Figure 14 is the sectional exploded view of bottom inlet type needle-valve inlet valve of the invention;
Figure 15 is the working principle diagram one of bottom inlet type needle-valve inlet valve of the invention;
Figure 16 is the waterstop pad and stainless needle decomposition diagram of bottom inlet type needle-valve inlet valve of the invention;
Figure 17 is bottom inlet type water inlet valve base and water inlet pipe clamping dismantling schematic diagram of the invention;
Figure 18 is that bottom inlet type back pressure water inlet valve base and water inlet pipe of the invention are clamped decomposition diagram;
Figure 19 is that bottom inlet type back pressure water inlet valve base and water inlet pipe of the invention are clamped assembling schematic diagram;
Figure 20 is that inlet type water inlet valve base in bottom of the invention is threadedly coupled dismantling schematic diagram with water inlet pipe;
Figure 21 is that inlet type back pressure water inlet valve base in bottom of the invention is threadedly coupled decomposition diagram with water inlet pipe;
Figure 22 is that inlet type back pressure water inlet valve base in bottom of the invention is threadedly coupled assembling schematic diagram with water inlet pipe;
Figure 23 is that bottom inlet type needle-valve water inlet valve base and water inlet pipe of the invention are clamped decomposition diagram;
Figure 24 is that inlet type needle-valve water inlet valve base in bottom of the invention is threadedly coupled decomposition diagram with water inlet pipe;
Figure 25 is side inlet type inlet valve perspective view one of the invention;
Figure 26 is inlet type needle-valve water inlet valve seal state cross-sectional view one in side of the invention;
Figure 27 is side inlet type needle-valve inlet valve cross-sectional view two of the invention;
Figure 28 is side inlet type needle-valve inlet valve perspective view two of the invention;
Figure 29 is the sectional exploded view of side inlet type needle-valve inlet valve of the invention;
Figure 30 is the working principle diagram one of side inlet type needle-valve inlet valve of the invention.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing introduction needed in technical description, it should be apparent that, the accompanying drawings in the following description is only some embodiments, For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings Obtain other technical solutions.
It is well known that toilet water tank water inlet valve according to water intake mode difference, be divided into side inlet type inlet valve, bottom inlet type into Water valve, it is different according to pressure water stop valve structure mode, and it is divided into back pressure inlet valve, needle-valve inlet valve.The present invention is first intake the bottom of with The embodiment of formula inlet valve introduces, and the structural relation and principle of the invention patent are equally suitable for side inlet type inlet valve With, then the embodiment of opposite side inlet type inlet valve briefly introduces.
As shown in figure 4, a kind of cistern bottom inlet type inlet valve, including valve seat 1, pressure water check valve, buoyancy control machine Structure 2, water inlet pipe 3 form accommodating cavity on valve seat 1, and the water outlet of water inlet pipe 3, the bottom of accommodating cavity is arranged in the bottom of accommodating cavity Exhalant canal equipped with the water outlet lateral wall for leading to water inlet pipe, the water outlet of the exhalant canal expose to accommodating cavity bottom appearance Face, higher than the maximum water level of cistern setting, pressure water check valve is mounted in accommodating cavity, and pressure water check valve is existing skill Art, pressure water check valve include upper cover, rubber water-proof pad, inner core tube, and inner core tube water outlet end face forms sealing face, inner core water inlet tube End, which is plugged in water inlet pipe, forms vertical intake tunnel, realizes sealing, rubber by setting sealing ring between inner core tube and water inlet pipe Glue waterstop pad is arranged in inner core tube water outlet, upper cover by rubber water-proof pad with valve seal together with, upper cover and rubber water-proof pad Between form pressure chamber, pressure chamber has inlet opening and relief hole respectively, and inlet opening is communicated with vertical intake tunnel, buoyancy control machine Relief hole is opened or blocked to structure 2 makes the on-off that hydraulic pressure or pressure release realization water flow are formed inside pressure water check valve.Wherein, cistern Bottom inlet type inlet valve is different according to pressure water stop valve structure mode, and is divided into bottom inlet type back pressure inlet valve, bottom inlet type needle Valve inlet valve.
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of bottom inlet type back pressure inlet valve, including valve seat 1, back-pressure water check valve 4, buoyancy control mechanism 2, water inlet pipe 3.The accommodating cavity 10 of installation valve back-pressure water check valve 4 is formed on valve seat 1, accommodating cavity 10 The water outlet 31 of water inlet pipe 3 is arranged in bottom 14, and the bottom 14 of accommodating cavity 10 is equipped with the water outlet lateral wall 34 for leading to water inlet pipe 3 Exhalant canal 11, the water surface 32 (as shown in Figure 9) until the head of the water outlet 31 of water inlet pipe 3, back-pressure water check valve 4 is main Including upper cover 42, rubber water-proof pad 43, back pressure pad 48, rubber water-proof pad 43 is sealed in the accommodating cavity 10 of valve seat 1 by upper cover 42, Rubber water-proof pad 43 is located at the head sealing face 32 of the water outlet 31 of water inlet pipe 3, shape between rubber water-proof pad 43 and upper cover 42 At pressure chamber 45, pressure chamber 45 has inlet opening 46 and relief hole 47 respectively, and inlet opening 46 is arranged on the guide post 49 of upper cover 42 (such as Shown in Figure 10), guide post 49 is perforated through rubber water-proof pad 43, it play the guiding role to rubber water-proof pad 43, inlet opening 46 and water inlet pipe 3 It communicates (as shown in Figure 5), relief hole 47 is arranged in upper cover 42, and the buoyancy control mechanism 2 is that existing closestool water inlet valve is normal With structure, it is the prior art, including water tank 20, keg float 21, connecting rod 22, swing rod 23, corresponds on swing rod 23 and set at relief hole 47 There is back pressure pad 48,23 one end of swing rod is hubbed in upper cover 42, and 23 other end of swing rod is connect by connecting rod 22 with keg float 21, keg float 21 are placed in water tank 20,20 sets of water tank on water inlet pipe 3, when the loss of buoyance in water tank 20 of keg float 21, swing rod 23 is in upper cover Rotation is fallen on 42, and back pressure pad 48 leaves relief hole 47, and relief hole 47 is opened, when keg float 21 is made in water tank 20 by buoyancy Used time, swing rod 23 are rotated in upper cover 42 and are lifted, and back pressure pad 48 blocks relief hole 47, and relief hole 47 is closed.
As shown in fig. 5-10, above-mentioned water inlet pipe 3 vertically set on cistern (figure does not regard out) by installation, water inlet pipe 3 Water inlet end device connect in cistern bottom and domestic water pipe network (figure is not depending on out), usual back-pressure water check valve 4 is high In the peak level face of cistern to avoid siphon is generated, water in cistern is caused to pass sequentially through exhalant canal 11, water inlet Pipe 3 and enter domestic water pipe network in.In use, the water because of cistern is discharged, so as to cause the water of buoyancy control mechanism 2 The water of case 20 leaks out, and 21 loss of buoyance of keg float, swing rod 23 is not lifted up, and back pressure pad 24 does not block relief hole 47, so from The water energy of 46 feed pressure chamber 45 of inlet opening is discharged from relief hole 4, and the pressure chamber 45 of the inside of rubber water-proof pad 43 will not generate Hydraulic pressure, rubber water-proof pad 43 continue upward the deformation of 42 side of lid, rubber water-proof pad 43 and water inlet pipe under the action of intake pressure 32 phase of head sealing face of 3 water outlet 31 separates, and the slave water inlet pipe 3 of domestic water pipe network enters, then flows from exhalant canal 11 Enter cistern, achievees the purpose that into water.When in cistern it is waterborne be raised to expired keg float 21 when, keg float 21 floats drive swing rod 23 lift, and the back pressure pad 24 on swing rod 23 pushes down relief hole 47, make the water for flowing into the pressure chamber 45 of the inside of rubber water-proof pad 43 Press it is increasing, it is big to the water feeding pressure for being more than 43 outside of rubber water-proof pad, rubber water-proof pad 43 occur flexible deformation be pressed in into On the head sealing face 32 of the water outlet 31 of water pipe 3, water inlet is closed, realizes automatic water stopping function.
As shown in Figure 11, Figure 12, Figure 13, Figure 14, a kind of bottom inlet type needle-valve inlet valve, with a kind of bottom inlet type back pressure into Identical water valve is valve seat 1, buoyancy control mechanism 2, water inlet pipe 3, the difference is that needle-valve pressure water check valve 5 stops instead of back-pressure Water valve 4.The accommodating cavity 10 of installation needle-valve pressure water check valve 5 is formed on valve seat 1, the bottom 14 of accommodating cavity 10 is arranged in water inlet pipe 3 Water outlet 31, the bottom 14 of accommodating cavity 10 is equipped with the exhalant canal 11 for leading to the water outlet lateral wall 34 of water inlet pipe 3, water inlet The water surface 32 (as shown in Figure 19, Figure 20, Figure 21) until the head of the water outlet 31 of pipe 3, needle-valve pressure water check valve 5 mainly include Waterstop pad 53 is sealed in the accommodating cavity 10 of valve seat 1 by upper end cover 52, waterstop pad 53, stainless pin 58, upper end cover 52, waterstop pad 53 are located at the head sealing face 32 of the water outlet 31 of water inlet pipe 3, form pressure cavities between waterstop pad 53 and upper end cover 52 55, pressure cavities 55 have inlet through hole 56 and pressure release through-hole 57 respectively, and pressure release through-hole 57 is intake through being arranged on waterstop pad 53 Through-hole 56 is also arranged on waterstop pad 53, and the buoyancy control mechanism 2 is existing closestool water inlet valve common structure, is existing skill Art, including water tank 20, keg float 21, connecting rod 22, swing rod 23 correspond on swing rod 23 and are equipped with stainless pin 58 at pressure release through-hole 57, Stainless pin 58 passes through upper end cover 52 and is inserted in pressure release through-hole 57, and stainless pin 58 is equipped with water-carrying groove 59 (as shown in figure 16), 23 one end of swing rod is hubbed on upper end cover 52, and 23 other end of swing rod is connect by connecting rod 22 with keg float 21, and keg float 21 is placed in water In case 20,20 sets of water tank on water inlet pipe 3, when the loss of buoyance in water tank 20 of keg float 21, swing rod 23 on upper end cover 52 turn Dynamic to fall, stainless pin 58 is partially extracted out from relief hole 47, and relief hole 47 is opened, when keg float 21 in water tank 20 by floating Masterpiece used time, swing rod 23 are rotated on upper end cover 52 and are lifted, and stainless pin 58 is fully inserted into relief hole 47, blocks relief hole 47, relief hole 47 is closed.
As shown in Figure 11-Figure 16, above-mentioned water inlet pipe 3 vertically set on cistern (figure does not regard out) by installation, water inlet pipe 3 water inlet end device connects in cistern bottom with domestic water pipe network (figure is not depending on out), usual needle-valve pressure water check valve 5 Higher than the peak level face of cistern to avoid siphon is generated, cause in cistern water pass sequentially through exhalant canal 11, into Water pipe 3 and enter domestic water pipe network in.In use, the water because of cistern is discharged, so as to cause buoyancy control mechanism 2 The water of water tank 20 leaks out, and 21 loss of buoyance of keg float, when the water in water tank does not rise to keg float position, swing rod 23 is not lifted, no Rust steel needle 58 is not fully inserted into the pressure release through-hole 57 for blocking 53 top of waterstop pad, so flowing into the water of 53 inside of waterstop pad It can be discharged from pressure release through-hole 57, the inside pressure cavity 55 of waterstop pad 53 will not generate hydraulic pressure, and waterstop pad 53 is in intake pressure The deformation of 52 side of end cap is continued upward under effect, waterstop pad 53 is separated with 32 phase of sealing face of water inlet pipe 3, domestic water pipe network Enter from water inlet pipe 3, then flow into cistern from exhalant canal 11, achievees the purpose that into water.It is raised to when waterborne in cistern When expiring keg float 21, keg float 21, which floats, drives swing rod 23 to lift, and the stainless pin 58 on swing rod 23 is fully inserted into the top of waterstop pad 53 In the pressure release through-hole 57 in portion, the water for flowing into 53 inside of waterstop pad be discharged can not, the hydraulic pressure of 53 inside of waterstop pad is increasing, The big water feeding pressure to more than 53 outside of waterstop pad, waterstop pad 53 occur flexible deformation and are pressed on the sealing face 32 of water inlet pipe 3, close It closes into water, realizes automatic water stopping function.
Main advantage is two kinds of bottom inlet type toilet water tank water inlet valves listed above compared with prior art: eliminating Inner core tube makes water inlet pipe have the function of inner core tube, i.e., directly in the water outlet end face of water inlet pipe with water inlet pipe instead of inner core tube Sealing face is formed, eliminates inner core tube component relative to bottom inlet type toilet water tank water inlet valve, reduces inner core tube in valve seat Installation, and unnecessary leakage point is reduced, relative to side inlet type inlet valve, valve body manufacture is simpler.
For another example shown in Fig. 5-8, Figure 11-14, the water outlet 31 of water inlet pipe 3, valve is arranged in the bottom of the accommodating cavity 10 of valve seat 1 Exhalant canal 11 is formed on the bottom 14 of the accommodating cavity 10 of seat 1, the water outlet 12 of exhalant canal 11 exposes to accommodating cavity bottom appearance Face 19, higher than the maximum water level of cistern setting.Higher than the maximum water level 7 of cistern setting, such exhalant canal 11 water outlet 12 is directly communicated with atmospheric pressure, not will form water seal between exhalant canal 11 and cistern bottom, is worked as water inlet Water in pipe 3 causes rubber water-proof pad or waterstop pad that cannot block the head sealing of water outlet 31 of water inlet pipe 3 in rapid decompression When face 32, atmospheric pressure is directly filled into water inlet pipe 3 by the water outlet 12 of exhalant canal 11, makes the air pressure in intake tunnel 11 Relative equilibrium is kept with outside, prevents siphon from generating, while ensuring that anti-siphon function never fails, also saves anti-siphon pad or anti- Siphon plunger member and structural failure risk, and valve seat construction can be designed simpler.
For another example shown in Fig. 5, Figure 12, the lateral wall of the water outlet 12 of exhalant canal 11 close to the water outlet of water inlet pipe 3 31 34, exhalant canal 11 is equipped with inclined-plane 13, makes lateral wall of the water outlet 12 of exhalant canal 11 towards the water outlet of water inlet pipe 3 31 34, certainly, the exhalant canal 11 can also be access ramp, make the water outlet 12 of exhalant canal 11 towards the water outlet of water inlet pipe 3 31 lateral wall 34, thus make from the water of exhalant canal 11 along water inlet pipe 3 34 fair current of lateral wall into cistern, water will not It disorderly splashes, and water inlet noise can be reduced, meanwhile, the water outlet 12 of exhalant canal 11 exposes to accommodating cavity bottom outer surface 15, not The blank pipe of relative closure, water flows in pipeline not will form sympathetic response, and water inlet noise can also become smaller.
As shown in Fig. 4, Fig. 5, Figure 12, in order to be better protected from the splashing of water, diversion pipe 6, water conservancy diversion are cased on water inlet pipe 3 The upper end 61 of pipe 6 is funnel-shaped, connects in the lower section of the water outlet 12 of exhalant canal 11.Certainly diversion pipe 6 is cased on water inlet pipe 3 Afterwards, buoyancy control mechanism 2 is just nested on diversion pipe 6.
For another example shown in Fig. 5-8, Figure 11-14, the bottom 14 of the accommodating cavity 10 of valve seat 1 and 31 one of water outlet of water inlet pipe 3 Forming.Certainly, such valve seat 1 cannot move on water inlet pipe 3, for the inlet type inlet valve of bottom, valve seat 1 into Height cannot be adjusted on water pipe 3, cause back-pressure water check valve 4, needle-valve pressure water check valve 5 that cannot need according to cistern Height adjustment cistern bottom between distance still as long as water inlet pipe height is arranged properly, can satisfy common horse The installation of bucket water tank needs.
In consideration of it, the bottom of the accommodating cavity of valve seat is movably arranged on the water outlet of water inlet pipe, as Figure 17, Figure 18, Figure 19, Shown in Figure 23, the bottom 14 of the accommodating cavity 10 of valve seat 1 is connected to the water outlet 31 of water inlet pipe 3, and the side of water outlet 31 is to overhanging Socket pipe 15 is formed on latch 35 out, the bottom 14 of the accommodating cavity 10 of valve seat 1, and 15 inner wall of socket pipe forms card slot 16, and valve seat 1 passes through Latch 35 is screwed in card slot 16 and is connected on the water outlet 31 of water inlet pipe 3.Can also as shown in Figure 20, Figure 21, Figure 22, Figure 24, The valve seat 1 is screwed onto the water outlet 31 of water inlet pipe 3, and the side of water outlet 31 forms external screw thread 36, the accommodating cavity 10 of valve seat 1 Bottom 14 formed socket pipe 15,15 inner wall of socket pipe formed internal screw thread 17, valve seat 1 pass through internal screw thread 17 screw in external screw thread 36 It is spirally connected and connects on the water outlet of water inlet pipe 3 31.In this way, different height socket pipe can be selected according to the height of cistern Valve seat 1, to match the cistern of different height, also facilitate valve seat 1 and back-pressure water check valve 4, needle-valve pressure water check valve 5 from Convenient for assembly and disassembly on water inlet pipe, in pressure sealing defective valve, the back-pressure water check valve 4 that more renews, needle-valve pressure are stopped Water valve 5.
The present invention is improved about water inlet pipe structure above by the embodiment of bottom inlet type inlet valve, anti-siphon, valve seat The equal innovative points that can convert have done complete description, wherein improving about water inlet pipe structure, anti-siphon has innovative point for side inlet type Inlet valve is equally applicable, is exemplified below side inlet type needle-valve inlet valve and is illustrated.
As shown in Figure 25-Figure 30, a kind of cistern side inlet type inlet valve, including valve seat 8, pressure water check valve, buoyancy Control mechanism 2, water inlet pipe 9.The water surface 92 (as shown in Figure 29, Figure 30) until the head of the water outlet 91 of water inlet pipe 9, on valve seat 8 Accommodating cavity 80 is formed, the water outlet 91 of water inlet pipe 9 is arranged in the bottom 84 of accommodating cavity 80, and the bottom 84 of accommodating cavity 80, which is equipped with, to be led to The exhalant canal 81 of the water outlet lateral wall 94 of water inlet pipe 9, accommodating cavity 80 are installed needle-valve pressure water check valve 5, equally be can choose Back-pressure water check valve is installed, buoyancy control mechanism 2 controls needle-valve pressure water check valve 5 or back-pressure water check valve realizes water flow On-off.Its buoyancy control mechanism 2, needle-valve pressure water check valve 5, back-pressure water stop valve structure and realization drainage principle are situated between with more than The bottom inlet type inlet valve to continue is identical, and which is not described herein again.
For another example shown in Figure 27, Figure 28, the water outlet 82 of exhalant canal 81 exposes to accommodating cavity bottom outer surface 89, is higher than horse The maximum water level 7 of bucket water tank setting, the water outlet 82 of such exhalant canal 81 directly communicates with atmospheric pressure, exhalant canal 81 with Cistern not will form water seal between bottom, prevent siphon from generating, it is ensured that anti-siphon function never fails.
For another example shown in Figure 27, Figure 28, the lateral wall of the water outlet 82 of exhalant canal 81 close to the water outlet of water inlet pipe 9 91 94, exhalant canal 81 is equipped with inclined-plane 83 or access ramp, uses the water outlet 82 of water channel 81 towards the water outlet of water inlet pipe 9 91 Lateral wall 94, make from the water of exhalant canal 91 along water inlet pipe 9 94 fair current of lateral wall into cistern, prevent water from disorderly splashing.More The splashing for preventing water well is cased with diversion pipe 6 on water inlet pipe 9, and the upper end 61 of diversion pipe 6 is funnel-shaped, connects in exhalant canal The lower section of 81 water outlet 82.After being cased with diversion pipe 6 on water inlet pipe 9, buoyancy control mechanism 2 is just nested on diversion pipe 6.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and Its equivalent thereof.

Claims (10)

1. a kind of anti-siphonic closet tank intake valve of water, including valve seat, pressure water check valve, buoyancy control mechanism, water inlet pipe, feature Be: forming accommodating cavity on valve seat, the bottom of accommodating cavity is arranged in the water outlet of water inlet pipe, the bottom of accommodating cavity be equipped with lead into The exhalant canal of the water outlet lateral wall of water pipe, the water outlet of the exhalant canal expose to accommodating cavity bottom outer surface, are higher than horse The maximum water level of bucket water tank setting, pressure water check valve are mounted in accommodating cavity, and buoyancy control mechanism makes inside pressure water check valve It forms hydraulic pressure or the on-off of water flow is realized in pressure release.
2. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the pressure water check valve packet Upper cover, rubber water-proof pad, inner core tube are included, inner core tube water outlet end face forms sealing face, and inner core tube water inlet end is plugged on water inlet pipe It is middle to form vertical intake tunnel, realize that sealing, the setting of rubber water-proof pad exist by setting sealing ring between inner core tube and water inlet pipe Rubber water-proof pad together with valve seal, is formed pressure chamber between upper cover and rubber water-proof pad by inner core tube water outlet, upper cover, Pressure chamber has inlet opening and relief hole respectively, and inlet opening is communicated with vertical intake tunnel, and buoyancy control mechanism controls relief hole is opened It opens or closes.
3. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the water outlet of the water inlet pipe The water surface until the head at end, the pressure water check valve include upper cover, waterstop pad, and waterstop pad is sealed in the accommodating of valve seat by upper cover Intracavitary, waterstop pad is located at the head sealing face of the water outlet of water inlet pipe, and pressure chamber, pressure chamber are formed between waterstop pad and upper cover There are inlet opening and relief hole respectively, inlet opening is communicated with water inlet pipe, and buoyancy control mechanism controls relief hole opens or closes.
4. a kind of anti-siphonic closet tank intake valve of water as claimed in claim 3, it is characterised in that: the pressure water check valve is Back-pressure water check valve, including upper cover, rubber water-proof pad, back pressure pad, the inlet opening are arranged on the guide post of upper cover, guide post It is perforated through rubber water-proof pad, the relief hole is arranged on upper lid, and the buoyancy control mechanism includes water tank, keg float, company Extension bar, swing rod correspond on swing rod and the back pressure pad are arranged at relief hole, and swing rod one end is hubbed on lid, the swing rod other end It is connect by connecting rod with keg float, keg float is placed in water tank, and water tank cover is on water inlet pipe.
5. a kind of anti-siphonic closet tank intake valve of water as claimed in claim 3, it is characterised in that: the pressure water check valve is Needle-valve pressure water check valve, including upper end cover, waterstop pad, stainless pin, the pressure release through-hole, which runs through, to be arranged on waterstop pad, institute The inlet through hole stated also is arranged on waterstop pad, and stainless pin passes through upper end cover and is inserted in pressure release through-hole, and stainless pin is equipped with Water-carrying groove, the buoyancy control mechanism include water tank, keg float, connecting rod, swing rod, are corresponded at relief hole on swing rod equipped with stainless Steel needle, swing rod one end are hubbed on upper end cover, and the swing rod other end is connect by connecting rod with keg float, and keg float is placed in water tank, water Housing-case is on water inlet pipe.
6. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the water outlet of the exhalant canal The water outlet lateral wall of the close water inlet pipe of mouth, the exhalant canal are equipped with inclined-plane or access ramp, make the water outlet court of exhalant canal To the water outlet lateral wall of water inlet pipe.
7. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the valve seat and water inlet pipe Water outlet it is integrally formed.
8. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the valve seat clamping or spiral shell It connects in the water outlet of water inlet pipe.
9. a kind of anti-siphonic closet tank intake valve of water as described in claim 1, it is characterised in that: the cistern water inlet Valve is bottom inlet type inlet valve or side inlet type inlet valve.
10. a kind of anti-siphonic closet tank intake valve of water as claimed in claim 9, it is characterised in that: covered on the water inlet pipe There is diversion pipe, the buoyancy control mechanism is nested on diversion pipe.
CN201910470672.1A 2019-05-31 2019-05-31 Anti-siphon toilet cistern inlet valve Active CN110106948B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332346A (en) * 2019-08-12 2019-10-15 厦门立业卫浴工业有限公司 A kind of anti-siphonic closet tank pressure water stop inlet valve
CN111058515A (en) * 2019-12-30 2020-04-24 厦门瑞尔特卫浴科技股份有限公司 Water inlet control device with time delay function
WO2021026727A1 (en) * 2019-08-12 2021-02-18 厦门立业卫浴工业有限公司 Anti-siphon pressure water-stop inlet valve of toilet water tank
CN113136929A (en) * 2021-04-28 2021-07-20 厦门立业卫浴工业有限公司 Water inlet valve fixed on water discharge valve
CN114033001A (en) * 2021-03-17 2022-02-11 刘文健 Water-saving valve for toilet cistern

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2558703Y (en) * 2002-06-26 2003-07-02 谢进侦 Water feeding controlling structure of water feeder
JP2004108655A (en) * 2002-09-18 2004-04-08 Ckd Corp Back flow prevention device
CN201762791U (en) * 2010-09-15 2011-03-16 厦门瑞尔特卫浴工业有限公司 Water inlet valve used for removing siphon negative pressure
CN202274155U (en) * 2011-09-14 2012-06-13 厦门立业卫浴工业有限公司 Novel inlet valve structure
CN205116331U (en) * 2015-10-15 2016-03-30 厦门瑞尔特卫浴科技股份有限公司 Siphon of preventing of water intaking valve improves structure
US20170152652A1 (en) * 2015-03-12 2017-06-01 Fluidmaster, Inc. Flow diverter with antisiphon
CN108443564A (en) * 2017-01-24 2018-08-24 厦门立业卫浴工业有限公司 A kind of water check valve
CN210315847U (en) * 2019-05-31 2020-04-14 厦门立业卫浴工业有限公司 Anti-siphon toilet cistern inlet valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2558703Y (en) * 2002-06-26 2003-07-02 谢进侦 Water feeding controlling structure of water feeder
JP2004108655A (en) * 2002-09-18 2004-04-08 Ckd Corp Back flow prevention device
CN201762791U (en) * 2010-09-15 2011-03-16 厦门瑞尔特卫浴工业有限公司 Water inlet valve used for removing siphon negative pressure
CN202274155U (en) * 2011-09-14 2012-06-13 厦门立业卫浴工业有限公司 Novel inlet valve structure
US20170152652A1 (en) * 2015-03-12 2017-06-01 Fluidmaster, Inc. Flow diverter with antisiphon
CN205116331U (en) * 2015-10-15 2016-03-30 厦门瑞尔特卫浴科技股份有限公司 Siphon of preventing of water intaking valve improves structure
CN108443564A (en) * 2017-01-24 2018-08-24 厦门立业卫浴工业有限公司 A kind of water check valve
CN210315847U (en) * 2019-05-31 2020-04-14 厦门立业卫浴工业有限公司 Anti-siphon toilet cistern inlet valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332346A (en) * 2019-08-12 2019-10-15 厦门立业卫浴工业有限公司 A kind of anti-siphonic closet tank pressure water stop inlet valve
WO2021026727A1 (en) * 2019-08-12 2021-02-18 厦门立业卫浴工业有限公司 Anti-siphon pressure water-stop inlet valve of toilet water tank
CN111058515A (en) * 2019-12-30 2020-04-24 厦门瑞尔特卫浴科技股份有限公司 Water inlet control device with time delay function
CN114033001A (en) * 2021-03-17 2022-02-11 刘文健 Water-saving valve for toilet cistern
CN113136929A (en) * 2021-04-28 2021-07-20 厦门立业卫浴工业有限公司 Water inlet valve fixed on water discharge valve

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