CN210315847U - Anti-siphon toilet cistern inlet valve - Google Patents
Anti-siphon toilet cistern inlet valve Download PDFInfo
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- CN210315847U CN210315847U CN201920818855.3U CN201920818855U CN210315847U CN 210315847 U CN210315847 U CN 210315847U CN 201920818855 U CN201920818855 U CN 201920818855U CN 210315847 U CN210315847 U CN 210315847U
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Abstract
The utility model discloses an anti-siphon toilet water tank water intaking valve, including disk seat, pressure stagnant valve, buoyancy control mechanism, inlet tube, form the holding chamber on the disk seat, the bottom setting in holding chamber is at the play water end of inlet tube, and the bottom in holding chamber is equipped with the play water passageway that accesss to the play water end lateral wall of inlet tube, and the delivery port of play water passageway exposes in holding chamber bottom surface, is higher than the highest water level line that toilet water tank set for, and the pressure stagnant valve is installed at the holding intracavity, and buoyancy control mechanism makes the inside water pressure or the break-make that the pressure release realized rivers of forming of pressure stagnant valve. The present case advantage is that the delivery port of outlet channel directly exposes in the disk seat bottom, is higher than the highest water level line that toilet tank set for, and the delivery port of outlet channel directly leads to with atmospheric pressure like this, and water when the inlet tube loses pressure suddenly, directly mends atmospheric pressure to the inlet tube through the delivery port of outlet channel, makes the atmospheric pressure in the inlet channel keep balance relatively with the outside, prevents the siphon and produces, ensures that anti-siphon function never loses efficacy.
Description
Technical Field
The utility model belongs to a water inlet valve of a toilet water tank, in particular to a water inlet valve of a siphon-proof pressure water-stop toilet water tank.
Background
The prior art has a water inlet valve of a toilet water tank, which mainly utilizes the water pressure in a domestic water pipe network to realize water inlet or blocking and comprises a valve body, a pressure water stop valve, a buoyancy control mechanism and a water inlet pipe, wherein the pressure water stop valve is arranged on the valve body, the valve body is connected on the water inlet pipe, and the buoyancy control mechanism enables the pressure water stop valve to form water pressure or pressure release inside to realize the on-off of water flow. The water inlet valve of the toilet water tank is divided into a side water inlet valve and a bottom water inlet valve according to different water inlet modes, and is divided into a back pressure water inlet valve and a needle valve water inlet valve according to different pressure water stop valve structure modes.
As shown in fig. 1 and 2, CN102345315U discloses a side-inlet back-pressure water inlet valve, which includes a valve body 100, a pressure water stop valve 200, a buoyancy control mechanism 300, and a water inlet pipe 400, wherein the water inlet pipe 400 is connected to a side of the valve body 100, the pressure water stop valve 200 includes an upper cover 201, a rubber water stop pad 202, and an inner core pipe 203, a vertical water outlet channel 101 is formed on the valve body 100, the inner core pipe 203 is transversely disposed in the valve body 100, a transverse water inlet channel 102 is formed between the inner core pipe 203 and the valve body 100, a water outlet end 2031 of the inner core pipe is communicated with the vertical water outlet channel 101, a water stop surface is formed on an end surface of a water inlet end 2032 of the inner core pipe, the rubber water stop pad 202 is disposed on the water inlet end 2032 of the inner core pipe, the rubber water stop pad 202 and the valve body 100 are sealed by the upper cover 201, a pressure chamber is formed between the upper, a buoyancy control mechanism 300 is provided outside the pressure relief hole. When the water inlet pipe 400 is installed on a toilet water tank (not shown), the water inlet pipe 400 is connected with a domestic water pipe network, and the pressure water stop valve 200 is usually higher than the highest water level of the toilet water tank to avoid siphoning, so that water in the toilet water tank sequentially passes through the water inlet pipe 400, the transverse water inlet channel 102, the inner core pipe 203 and the vertical water outlet channel 101 to enter the domestic water pipe network. When the water inlet device is used, water in the toilet water tank is discharged, so that the buoyancy control mechanism 300 loses buoyancy, the pressure relief hole is opened, water enters the toilet water tank from the water inlet pipe 400, the pressure water stop valve 200 and the vertical water outlet channel 101, meanwhile, a small part of water enters the pressure cavity through the water inlet hole and then flows out through the pressure relief hole, and the purpose of water inlet is achieved; when the water level in the toilet water tank rises to a preset position, the floating force control mechanism 300 is triggered to act to block the pressure relief hole and prevent the pressure relief hole from discharging water outwards, and because the water inlet hole of the pressure cavity is communicated with the water inlet pipe 400, the water pressure in the pressure cavity is increased suddenly, so that the rubber water stop pad 202 generates elastic expansion deformation and blocks the water stop surface of the water inlet end 2032 of the inner core pipe, the water flow between the transverse water inlet channel 102 and the inner core pipe 203 is cut off, and the purpose of water stop is achieved.
As shown in fig. 3, the CN202274155U document discloses a bottom water inlet type back pressure water inlet valve, which includes a valve body 1 ', a pressure water stop valve 2 ', a buoyancy control mechanism 3 ', a water inlet pipe 4 ' connected to the lower portion of the valve body 1 ', the pressure water stop valve 2 ' including an upper cover 21 ', a rubber water stop pad 22 ', an inner core pipe 23 ', an end surface of a water outlet end 231 ' of the inner core pipe forming a water stop surface, a water inlet end 232 ' of the inner core pipe inserted into the water inlet pipe to form a vertical water inlet channel 11 ', a sealing ring arranged between the inner core pipe 23 ' and the water inlet pipe 4 ' for sealing, the valve body 1 ' externally sleeved on the water inlet pipe 4 ', a vertical water outlet channel 12 ' formed between the valve body 1 ' and the inner core pipe 23 ' and the water inlet pipe 4 ', the rubber water stop pad 22 ' arranged at the water outlet end 231 ' of the inner core pipe, the upper cover 21 ' sealed, the pressure chamber 24 ' has a water inlet 241 ' and a pressure relief hole 242 ', the water inlet 241 ' is communicated with the vertical water inlet channel 11 ', and the buoyancy control mechanism 3 ' is arranged outside the pressure relief hole 242 '. During installation, the water inlet pipe 4 'is vertically installed on a toilet water tank (not shown), the water inlet pipe is connected with a domestic water pipe network, and the pressure water stop valve 2' is usually higher than the highest water level surface of the toilet water tank so as to avoid siphoning, so that water in the toilet water tank sequentially passes through the water inlet pipe 4 ', the vertical water inlet channel 11', the inner core pipe 23 'and the vertical water outlet channel 12' and enters the domestic water pipe network. When the water inlet type closestool water tank water inlet valve is used, the principle is the same as that of a water inlet type closestool water tank water inlet valve, namely, water in the closestool water tank is discharged, so that the buoyancy control mechanism 3 ' loses buoyancy, the pressure relief hole 242 ' is opened, water enters the closestool water tank from the water inlet pipe 4 ' and the pressure water stop valve 2 ', meanwhile, a small part of water enters the pressure cavity 24 ' through the water inlet hole 241 ', and then flows out through the pressure relief hole 242 ', and the purpose of water inlet is achieved; when the water level in the toilet water tank rises to a preset position, the buoyancy control mechanism 3 'is triggered to act to block the pressure relief hole 242', and the pressure relief hole 242 'is prevented from discharging water outwards, and because the water inlet hole 241' of the pressure cavity is communicated with the water inlet pipe 4 ', the water pressure in the pressure cavity is increased suddenly, so that the rubber water stop pad is elastically expanded and deformed to block the water stop surface of the water outlet end 231' of the inner core pipe, and the water flow between the vertical water inlet channel 11 'and the vertical water outlet channel 12' is cut off, and the purpose of stopping water is achieved.
In order to prevent water in the domestic water pipe network from being polluted, the above two toilet tank inlet valves need to be designed to prevent siphoning, as shown in fig. 1 and 2, the outlet of the vertical water outlet channel 101 of the side-inlet type inlet valve extends to the bottom of the toilet tank, the highest water level is set at the position far from the toilet tank, and water is easily sealed between the vertical water outlet channel and the bottom of the toilet tank, so that a siphoning-preventing plug 500 is arranged between the water outlet end 2031 of the inner core pipe and the vertical water outlet channel 101, when the water in the inlet pipe suddenly loses pressure, the rubber water-stopping pad 202 cannot block the water-stopping surface of the inner core pipe, the siphoning-preventing plug 500 blocks the water outlet end 2031 of the inner core pipe due to suck-back, the water in the toilet tank is prevented from flowing back into the domestic water pipe network, and the water in the domestic. As shown in fig. 3, the outlet of the vertical outlet channel 12 ' of the bottom inlet type inlet valve also extends to the bottom of the toilet tank, and the highest water level is set far from the toilet tank, so that water is easily sealed between the vertical outlet channel and the bottom of the toilet tank, therefore, the anti-siphon pad 5 ' is arranged in the vertical outlet channel, when the water in the inlet pipe 4 ' is suddenly decompressed, the rubber water stop pad 22 ' cannot block the water stop surface of the inner core pipe 23 ', and the anti-siphon pad 5 ' seals the vertical outlet channel 12 ' due to back suction, so as to prevent the water in the toilet tank from flowing back into the domestic water pipe network, thereby preventing the water in the domestic water pipe network from being polluted.
Therefore, the utility model discloses the people improves the closestool water tank water intaking valve to foretell shortcoming.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anti-siphon closestool water tank water intaking valve, water when the inlet tube in the sudden decompression, can make atmospheric pressure and outside in the inhalant canal keep relative balance fast, prevent that the siphon from producing, ensure that anti-siphon function never loses efficacy.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the utility model provides an anti-siphon closestool water tank water intaking valve, includes disk seat, pressure stagnant valve, buoyancy control mechanism, inlet tube, forms the holding chamber on the disk seat, and the bottom setting in holding chamber is at the play water end of inlet tube, and the bottom in holding chamber is equipped with the delivery channel who accesss to the play water end lateral wall of inlet tube, the delivery port of delivery channel exposes in holding chamber bottom surface, is higher than the highest water level line that the closestool water tank set for, and the pressure stagnant valve is installed in the holding intracavity, and buoyancy control mechanism makes the inside water pressure or the break-make that realizes rivers that form of pressure stagnant valve.
Further, the pressure water stop valve comprises an upper cover, a rubber water stop pad and an inner core pipe, wherein the water outlet end face of the inner core pipe forms a water stop surface, the water inlet end of the inner core pipe is inserted into the water inlet pipe to form a vertical water inlet channel, sealing is realized by arranging a sealing ring between the inner core pipe and the water inlet pipe, the rubber water stop pad is arranged at the water outlet end of the inner core pipe, the upper cover seals the rubber water stop pad and the valve body together, a pressure cavity is formed between the upper cover and the rubber water stop pad and is respectively provided with a water inlet hole and a pressure release hole, the water inlet hole is communicated with the vertical water inlet channel, and the buoyancy.
Furthermore, the head of the water outlet end of the water inlet pipe is the water stop surface, the pressure water stop valve comprises an upper cover and a water stop gasket, the upper cover seals the water stop gasket in the containing cavity of the valve seat, the water stop gasket is positioned at the water stop surface of the head of the water outlet end of the water inlet pipe, a pressure cavity is formed between the water stop gasket and the upper cover, the pressure cavity is respectively provided with a water inlet hole and a pressure relief hole, the water inlet hole is communicated with the water inlet pipe, and the buoyancy control mechanism controls the pressure relief hole to be opened or closed.
Further, pressure stagnant water valve be backpressure pressure stagnant water valve, including upper cover, rubber stagnant water pad, back pressure pad, the inlet opening set up on the guide pillar of upper cover, the guide pillar pierces through the rubber stagnant water pad, the pressure release hole set up at the top of upper cover, buoyancy control mechanism include water tank, floating barrel, connecting rod, pendulum rod, correspond pressure release hole department on the pendulum rod and set up the backpressure pad, the pivot of pendulum rod one end is established on the upper cover, the pendulum rod other end passes through the connecting rod and is connected with the floating barrel, the floating barrel is arranged in the water tank, the water tank cover is on the inlet tube.
Further, pressure stagnant water valve be needle valve pressure stagnant water valve, including upper end cover, stagnant water pad, stainless steel needle, the pressure release hole run through the setting and lean on at stagnant water pad, the inlet opening also set up on stagnant water pad, the stainless steel needle passes the upper end cover and inserts in the pressure release hole, is equipped with the basin on the stainless steel needle, buoyancy control mechanism include water tank, floating barrel, connecting rod, pendulum rod, correspond pressure release hole department on the pendulum rod and be equipped with the stainless steel needle, pendulum rod one end pivot is established on the upper end cover, the pendulum rod other end passes through the connecting rod and is connected with floating barrel, in the water tank was arranged in to the floating barrel, the water tank cover was on the inlet tube.
Furthermore, 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 an inclined plane, 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.
Furthermore, 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 an inclined channel, 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.
Furthermore, the valve seat and the water outlet end of the water inlet pipe are integrally formed.
Furthermore, the valve seat is clamped or screwed at the water outlet end of the water inlet pipe.
Furthermore, the water inlet valve of the toilet water tank is a bottom water inlet type water inlet valve, namely the water inlet end of the water inlet pipe is arranged at the bottom of the toilet water tank.
Furthermore, the water inlet valve of the toilet water tank is a side water inlet type water inlet valve, namely the water inlet end of the water inlet pipe is arranged on the side part of the toilet water tank.
Furthermore, the water inlet pipe is sleeved with a flow guide pipe, and the buoyancy control mechanism is sleeved on the flow guide pipe.
Compared with the prior art, the scheme has the main advantages that: the water outlet of the water outlet channel is directly exposed at the bottom of the valve seat and is higher than the highest water level line set by the toilet water tank, so that the water outlet of the water outlet channel is directly communicated with the atmospheric pressure, a water seal can not be formed between the water outlet channel and the bottom of the toilet water tank, when the water in the water inlet pipe is suddenly decompressed and cannot block the water stop surface of the water inlet pipe, the atmospheric pressure is directly supplemented into the water inlet pipe through the water outlet of the water outlet channel, so that the air pressure in the water inlet channel is kept relatively balanced with the outside, the siphon is prevented from being generated, the siphon prevention function is ensured to be never failed, and the siphon prevention pad or the siphon prevention plug part is also removed.
Drawings
FIG. 1 is a side sectional view of a prior art side entry water fill valve;
FIG. 2 is a top view of a prior art side entry water inlet valve;
FIG. 3 is a side cross-sectional view of a prior art bottom entry fill valve;
FIG. 4 is a perspective view of the bottom inlet water inlet valve of the present invention;
FIG. 5 is a schematic view of the bottom water inlet type back pressure water inlet valve of the present invention;
fig. 6 is a second cross-sectional view of the bottom water inlet type back pressure water inlet valve of the present invention;
FIG. 7 is an exploded view of the bottom water inlet type back pressure water inlet valve of the present invention;
FIG. 8 is a 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 first schematic diagram of the bottom water inlet type back pressure water inlet valve of the present invention;
FIG. 10 is a schematic view of the bottom inlet back pressure inlet valve of the present invention showing the engagement of the rubber water stop and the upper cover;
FIG. 11 is a sectional view of the bottom inlet type needle valve inlet valve of the present invention in a water stop state;
FIG. 12 is a first cross-sectional view of the bottom inlet type needle valve inlet valve of the present invention;
FIG. 13 is a second cross-sectional view of the bottom inlet type needle valve inlet valve of the present invention;
FIG. 14 is a sectional exploded view of the bottom feed needle valve inlet valve of the present invention;
FIG. 15 is a first schematic view of the bottom inlet type needle valve inlet valve of the present invention;
FIG. 16 is an exploded view of the water stop gasket and the stainless needle of the bottom entry needle valve of the present invention;
FIG. 17 is a schematic view of the bottom inlet type inlet valve with the valve seat and the inlet pipe being connected and disconnected;
FIG. 18 is an exploded view of the bottom inlet back pressure inlet valve of the present invention with the valve seat and the inlet pipe engaged together;
FIG. 19 is a schematic view of the bottom inlet back pressure inlet valve of the present invention with the valve seat and the inlet pipe engaged together;
FIG. 20 is a schematic view of the bottom entry type inlet valve of the present invention illustrating the threaded connection and disassembly of the valve seat and the inlet tube;
FIG. 21 is an exploded view of the bottom inlet back pressure inlet valve of the present invention showing the threaded connection between the valve seat and the inlet pipe;
fig. 22 is a schematic view of the threaded connection assembly of the valve seat and the water inlet pipe of the bottom water inlet type back pressure water inlet valve of the present invention;
FIG. 23 is an exploded view of the bottom inlet type needle valve inlet valve of the present invention with the valve seat and the inlet tube engaged together;
FIG. 24 is an exploded view of the bottom inlet type needle valve inlet valve seat and inlet tube threaded connection of the present invention;
FIG. 25 is a first perspective view of the side entry valve of the present invention;
FIG. 26 is a sectional view showing a first water stop state of the side inlet needle valve according to the present invention;
FIG. 27 is a sectional view of the side inlet needle valve assembly of the present invention;
FIG. 28 is a second perspective view of the side inlet needle valve of the present invention;
FIG. 29 is a cut-away exploded view of the side entry needle valve inlet of the present invention;
fig. 30 is a first schematic diagram of the side water inlet type needle valve of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be described below, and it is obvious that the drawings in the following description are only some embodiments, and those skilled in the art can also obtain other technical solutions according to the drawings without inventive labor.
As is well known, the water inlet valve of the toilet cistern is divided into a side water inlet valve and a bottom water inlet valve according to different water inlet modes, and is also divided into a back pressure water inlet valve and a needle valve water inlet valve according to different pressure water stop valve structures. The utility model discloses earlier with the embodiment of end water inlet formula water intaking valve to make the key introduction, the utility model discloses a structural relation and principle are equally suitable for to the side formula water intaking valve that intakes, and the embodiment of offside water inlet formula water intaking valve is introduced briefly again.
As shown in figure 4, the water inlet valve for the bottom of the toilet water tank comprises a valve seat 1, a pressure water stop valve, a buoyancy control mechanism 2 and a water inlet pipe 3, wherein a containing cavity is formed on the valve seat 1, the bottom of the containing cavity is arranged at the water outlet end of the water inlet pipe 3, a water outlet channel leading to the outer side wall of the water outlet end of the water inlet pipe is arranged at the bottom of the containing cavity, the water outlet of the water outlet channel is exposed out of the outer surface of the bottom of the containing cavity and is higher than the highest water level line set by the toilet water tank, the pressure water stop valve is arranged in the containing cavity, the pressure water stop valve is the prior art and comprises an upper cover, a rubber water stop pad and an inner core pipe, the water outlet end face of the inner core pipe forms a water stop surface, the water inlet end of the inner core pipe is inserted into the water inlet pipe to form a vertical water inlet channel, a sealing, form the pressure chamber between upper cover and the rubber stagnant water pad, the pressure chamber has inlet opening and pressure release hole respectively, and the inlet opening communicates with each other with vertical inhalant canal, and buoyancy control mechanism 2 opens or the shutoff pressure release hole makes the inside water pressure that forms of pressure stagnant water valve or the break-make that the pressure release realized rivers. The water inlet valve at the bottom of the toilet water tank is divided into a bottom water inlet type backpressure water inlet valve and a bottom water inlet type needle valve water inlet valve according to different structural modes of the pressure water stop valve.
As shown in fig. 5, 6, 7 and 8, the bottom water inlet type back pressure water inlet valve comprises a valve seat 1, a back pressure water stop valve 4, a buoyancy control mechanism 2 and a water inlet pipe 3. The valve seat 1 is provided with a containing cavity 10 for installing the valve backpressure water stop valve 4, the bottom 14 of the containing cavity 10 is arranged at the water outlet end 31 of the water inlet pipe 3, the bottom 14 of the containing cavity 10 is provided with a water outlet channel 11 leading to the outer side wall 34 of the water outlet end of the water inlet pipe 3, the head of the water outlet end 31 of the water inlet pipe 3 is connected with the water stop surface 32 (shown in figure 9), the backpressure water stop valve 4 mainly comprises an upper cover 42, a rubber water stop pad 43 and a backpressure pad 48, the rubber water stop pad 43 is sealed in the containing cavity 10 of the valve seat 1 by the upper cover 42, the rubber water stop pad 43 is positioned at the water stop surface 32 of the head of the water outlet end 31 of the water inlet pipe 3, a water stop pad 43 and the upper cover 42 form a pressure cavity 45, the pressure cavity 45 is respectively provided with a water inlet hole 46 and a pressure relief hole 47, the water inlet hole 46 is arranged on a guide post 49 (shown, the water inlet hole 46 is communicated with the water inlet pipe 3 (as shown in fig. 5), the pressure relief hole 47 is arranged on the upper cover 42, the buoyancy control mechanism 2 is a common structure of the existing toilet water inlet valve, and comprises a water tank 20, a floating bucket 21, a connecting rod 22 and a swing rod 23, a back pressure pad 48 is arranged on the swing rod 23 corresponding to the pressure relief hole 47, one end of the swing rod 23 is pivoted on the upper cover 42, the other end of the swing rod 23 is connected with the floating bucket 21 through the connecting rod 22, the floating bucket 21 is arranged in the water tank 20, the water tank 20 is sleeved on the water inlet pipe 3, when the floating bucket 21 loses buoyancy in the water tank 20, the swing rod 23 rotates on the upper cover 42 and falls down, the back pressure pad 48 leaves the pressure relief hole 47, the pressure relief hole 47 is opened, and when the floating bucket 21 is subjected to buoyancy in the water tank 20, the swing rod 23 rotates on the upper cover 42 and.
As shown in fig. 5-10, the above-mentioned water inlet pipe 3 is vertically installed on a toilet water tank (not shown), the water inlet end of the water inlet pipe 3 is installed at the bottom of the toilet water tank and connected to a domestic water pipe network (not shown), and usually the back pressure water stop valve 4 is higher than the highest water level of the toilet water tank to avoid siphon, so that the water in the toilet water tank passes through the water outlet channel 11 and the water inlet pipe 3 to enter the domestic water pipe network. During the use, because of the water of toilet tank is discharged, thereby lead to the water of the water tank 20 of buoyancy control mechanism 2 to spill, keg float 21 loses buoyancy, pendulum rod 23 does not upwards lift, pressure release hole 47 is not blockked up to back pressure pad 24, so follow the hydroenergy of inlet opening 46 inflow pressure chamber 45 and discharge from pressure release hole 4, the inboard pressure chamber 45 of rubber water stop pad 43 can not produce water pressure, rubber water stop pad 43 lasts to upper cover 42 one side deformation under the effect of inlet pressure, the head stagnant water face 32 phase separation of rubber water stop pad 43 and the play water end 31 of inlet tube 3, the entering from inlet tube 3 of domestic water pipe network, flow into toilet tank from outlet channel 11 again, reach the purpose of intaking. When the water in the toilet water tank rises to fully pass through the floating barrel 21, the floating barrel 21 floats to drive the swing rod 23 to lift up, the back pressure pad 24 on the swing rod 23 presses the pressure relief hole 47, so that the water pressure flowing into the pressure cavity 45 on the inner side of the rubber water stop pad 43 is increased to exceed the water inlet pressure on the outer side of the rubber water stop pad 43, the rubber water stop pad 43 is elastically deformed and pressed on the head water stop surface 32 of the water outlet end 31 of the water inlet pipe 3, the water inlet is closed, and the automatic water stop function is realized.
As shown in fig. 11, 12, 13 and 14, a bottom-inlet needle valve inlet valve is similar to a bottom-inlet back pressure inlet valve in that it includes a valve seat 1, a buoyancy control mechanism 2 and a water inlet pipe 3, and is different in that a needle valve pressure water stop valve 5 is used instead of the back pressure water stop valve 4. The valve seat 1 is provided with an accommodating cavity 10 for installing the needle valve pressure water stop valve 5, the bottom 14 of the accommodating cavity 10 is arranged at the water outlet end 31 of the water inlet pipe 3, the bottom 14 of the accommodating cavity 10 is provided with a water outlet channel 11 leading to the outer side wall 34 of the water outlet end of the water inlet pipe 3, the head of the water outlet end 31 of the water inlet pipe 3 reaches the water surface 32 (as shown in figures 19, 20 and 21), the needle valve pressure water stop valve 5 mainly comprises an upper end cover 52, a water stop pad 53 and a stainless steel needle 58, the upper end cover 52 seals the water stop pad 53 in the accommodating cavity 10 of the valve seat 1, the water stop pad 53 is positioned 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 pad 53 and the upper end cover 52, the pressure cavity 55 is respectively provided with a water inlet hole 56 and a pressure relief hole 57, the common pressure relief hole 57 is arranged on the water stop pad 53, the water tank comprises a water tank 20, a floating bucket 21, a connecting rod 22 and a swing rod 23, wherein a stainless steel needle 58 is arranged on the swing rod 23 corresponding to a pressure relief hole 57, the stainless steel needle 58 penetrates through an upper end cover 52 and is inserted into the pressure relief hole 57, a water passing groove 59 (shown in figure 16) is arranged on the stainless steel needle 58, one end of the swing rod 23 is pivoted on the upper end cover 52, the other end of the swing rod 23 is connected with the floating bucket 21 through the connecting rod 22, the floating bucket 21 is arranged in the water tank 20, the water tank 20 is sleeved on a water inlet pipe 3, when the floating bucket 21 loses buoyancy in the water tank 20, the swing rod 23 rotates on the upper end cover 52 and falls down, the stainless steel needle 58 is partially extracted from the pressure relief hole 57, the pressure relief hole 57 is opened, when the floating bucket 21 is exerted on the water tank 20, the swing rod 23 rotates and rises on the upper end cover 52, the stainless steel needle 58.
As shown in fig. 11-16, the water inlet pipe 3 is vertically installed on a toilet water tank (not shown), the water inlet end of the water inlet pipe 3 is connected to a domestic water pipe network (not shown) at the bottom of the toilet water tank, and usually the needle valve pressure water stop valve 5 is higher than the highest water level of the toilet water tank to avoid siphon, so that the water in the toilet water tank passes through the water outlet channel 11 and the water inlet pipe 3 to enter the domestic water pipe network. When the water-saving toilet is used, water in the toilet water tank is discharged, so that water in the water tank 20 of the buoyancy control mechanism 2 leaks, the floating bucket 21 loses buoyancy, when the water in the water tank does not rise to the position of the floating bucket, the swing rod 23 is not lifted, the stainless steel needle 58 is not completely inserted into the pressure relief hole 57 blocking the top of the water stop pad 53, so that water flowing into the inner side of the water stop pad 53 can be discharged from the pressure relief hole 57, the inner side pressure cavity 55 of the water stop pad 53 cannot generate water pressure, the water stop pad 53 continuously deforms towards one side of the upper end cover 52 under the action of water inlet pressure, the water stop pad 53 is separated from the water stop surface 32 of the water inlet pipe 3, a domestic water pipe network enters from the water inlet pipe 3 and then flows into the toilet water tank from. When the water in the toilet water tank rises to fully pass through the floating barrel 21, the floating barrel 21 floats to drive the swing rod 23 to lift up, the stainless steel needle 58 on the swing rod 23 is completely inserted into the pressure relief hole 57 at the top of the water stop pad 53, so that the water flowing into the inner side of the water stop pad 53 cannot be discharged, the water pressure at the inner side of the water stop pad 53 is increased more and exceeds the water inlet water pressure at the outer side of the water stop pad 53, the water stop pad 53 is elastically deformed to press on the water stop surface 32 of the water inlet pipe 3, the water inlet is closed, and the automatic.
Compared with the prior art, the two bottom water inlet type toilet water tank water inlet valves listed above have the main advantages that: the inner core pipe is omitted, the inner core pipe is replaced by the water inlet pipe, so that the water inlet pipe has the function of the inner core pipe, namely, a water stop surface is directly formed on the end surface of the water outlet end of the water inlet pipe, the inner core pipe part is omitted relative to a bottom water inlet type closestool water tank water inlet valve, the installation of the inner core pipe in a valve seat is reduced, unnecessary water leakage points are reduced, and the valve body is simpler to manufacture relative to a side water inlet type water inlet valve.
As shown in fig. 5-8 and 11-14, the bottom of the accommodating cavity 10 of the valve seat 1 is disposed at the water outlet end 31 of the water inlet pipe 3, a water outlet channel 11 is formed on the bottom 14 of the accommodating cavity 10 of the valve seat 1, and the water outlet 12 of the water outlet channel 11 is exposed out of the outer surface 19 of the bottom of the accommodating cavity and is higher than the highest water level set by the toilet tank. Higher than the highest water level 7 that the toilet water tank set for, the delivery port 12 of outlet channel 11 is direct to communicate with atmospheric pressure like this, can not form the water seal between outlet channel 11 and the toilet water tank bottom, water when inlet tube 3 loses pressure suddenly, when causing rubber water stop pad or water stop pad can not plug up the head stagnant water face 32 of the play water end 31 of inlet tube 3, directly supply atmospheric pressure into inlet tube 3 through outlet channel 11's delivery port 12, make the atmospheric pressure in the inlet channel 11 keep balance with the outside relatively, prevent the siphon and produce, ensure simultaneously that prevent the siphon function and never lose efficacy, also save prevent siphon pad or prevent siphon and block part and structural failure risk, and the valve seat structure can design more simply.
As shown in fig. 5 and 12, the water outlet 12 of the water outlet channel 11 is close to the outer side wall 34 of the water outlet end 31 of the water inlet pipe 3, the water outlet channel 11 is provided with the inclined surface 13, so that the water outlet 12 of the water outlet channel 11 faces the outer side wall 34 of the water outlet end 31 of the water inlet pipe 3, of course, the water outlet channel 11 may also be an inclined channel, so that the water outlet 12 of the water outlet channel 11 faces the outer side wall 34 of the water outlet end 31 of the water inlet pipe 3, so that the water flowing from the water outlet channel 11 flows downstream into the toilet tank along the outer side wall 34 of the water inlet pipe 3, the water is not splashed, the water inlet noise can be reduced, meanwhile, the water outlet 12 of the water outlet channel 11 is exposed on the outer surface 15 of the bottom of the accommodating cavity, and is not a relatively.
As shown in fig. 4, 5, and 12, in order to prevent water from splashing, a guide pipe 6 is fitted to the water inlet pipe 3, and an upper end 61 of the guide pipe 6 is formed in a funnel shape and is connected below the water outlet 12 of the water outlet passage 11. Certainly, after the water inlet pipe 3 is sleeved with the guide pipe 6, the buoyancy control mechanism 2 is sleeved on the guide pipe 6.
As shown in fig. 5-8 and 11-14, the bottom 14 of the receiving cavity 10 of the valve seat 1 is integrally formed with the outlet end 31 of the inlet tube 3. Of course, the valve seat 1 cannot move on the water inlet pipe 3, and particularly for a bottom water inlet type water inlet valve, the height of the valve seat 1 on the water inlet pipe 3 cannot be adjusted, so that the back pressure water stop valve 4 and the needle valve pressure water stop valve 5 cannot adjust the distance between the back pressure water stop valve and the bottom of the toilet water tank according to the height of the toilet water tank, but the installation requirement of the common toilet water tank can be met as long as the height of the water inlet pipe is set to be proper.
In view of this, the bottom of the accommodating cavity of the valve seat is movably mounted at the water outlet end of the water inlet pipe, as shown in fig. 17, 18, 19 and 23, the bottom 14 of the accommodating cavity 10 of the valve seat 1 is clamped at the water outlet end 31 of the water inlet pipe 3, the side surface of the water outlet end 31 extends outwards to form a latch 35, the bottom 14 of the accommodating cavity 10 of the valve seat 1 forms a sleeve 15, a slot 16 is formed on the inner wall of the sleeve 15, and the valve seat 1 is clamped at the water outlet end 31 of the water inlet pipe 3 by screwing the latch 35 into the slot 16. As shown in fig. 20, 21, 22 and 24, the valve seat 1 is screwed to the water outlet end 31 of the water inlet tube 3, the side surface of the water outlet end 31 forms an external thread 36, the bottom 14 of the accommodating cavity 10 of the valve seat 1 forms a sleeve 15, the inner wall of the sleeve 15 forms an internal thread 17, and the valve seat 1 is screwed to the water outlet end 31 of the water inlet tube 3 by screwing the internal thread 17 into the external thread 36. So, can select the disk seat 1 of not co-altitude bell and spigot according to toilet tank's height to match toilet tank of not co-altitude, also make things convenient for disk seat 1 and backpressure pressure stop valve 4, needle valve pressure stop valve 5 to make things convenient for assembly and dismantlement from the inlet tube, when pressure stop valve became invalid, the backpressure pressure stop valve 4, the needle valve pressure stop valve 5 of renewal.
Above through the embodiment of end water inlet formula water intaking valve right the utility model discloses about advance water piping structure improvement, prevent the siphon, the innovation point such as the valve seat can be converted and has been introduced completely, wherein have the innovation point about advance water piping structure improvement, prevent the siphon and be applicable equally to side water inlet formula water intaking valve, list side water inlet formula needle valve water intaking valve in the following and explain.
As shown in fig. 25-30, a side inlet valve for a toilet tank comprises a valve seat 8, a pressure stop valve, a buoyancy control mechanism 2, and an inlet pipe 9. The head of the water outlet end 91 of the water inlet pipe 9 is a water stop surface 92 (as shown in fig. 29 and fig. 30), a containing cavity 80 is formed on the valve seat 8, the bottom 84 of the containing cavity 80 is arranged at the water outlet end 91 of the water inlet pipe 9, the bottom 84 of the containing 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, the needle valve pressure water stop valve 5 is installed in the containing cavity 80, a back pressure water stop valve can be installed selectively, and the buoyancy control mechanism 2 controls the needle valve pressure water stop valve 5 or the back pressure water stop valve to realize. The structure of the buoyancy control mechanism 2, the needle valve pressure water stop valve 5 and the back pressure water stop valve and the principle of realizing water drainage are completely the same as those of the bottom water inlet type water inlet valve described above, and the detailed description is omitted here.
As shown in fig. 27 and 28, the water outlet 82 of the water outlet channel 81 is exposed out of the outer surface 89 of the bottom of the accommodating cavity and is higher than the highest water level 7 set in the toilet water tank, so that the water outlet 82 of the water outlet channel 81 is directly communicated with the atmospheric pressure, no water seal is formed between the water outlet channel 81 and the bottom of the toilet water tank, siphon is prevented, and the anti-siphon function is ensured to be never disabled.
As shown in fig. 27 and 28, the water outlet 82 of the water outlet channel 81 is close to the outer side wall 94 of the water outlet end 91 of the water inlet pipe 9, and the water outlet channel 81 is provided with a slope 83 or an inclined channel, so that the water outlet 82 of the water outlet channel 81 faces the outer side wall 94 of the water outlet end 91 of the water inlet pipe 9, and water from the water outlet channel 91 flows downstream into the toilet tank along the outer side wall 94 of the water inlet pipe 9, thereby preventing water from splashing. The guide pipe 6 is sleeved on the water inlet pipe 9, and the upper end 61 of the guide pipe 6 is funnel-shaped and is connected below the water outlet 82 of the water outlet channel 81. After the water inlet pipe 9 is sleeved with the guide pipe 6, the buoyancy control mechanism 2 is sleeved on the guide pipe 6.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an anti-siphon closestool water tank water intaking valve, includes disk seat, pressure stagnant water valve, buoyancy control mechanism, inlet tube, its characterized in that: 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 line set by the toilet water tank, the pressure water stop valve is installed in the accommodating cavity, and the buoyancy control mechanism enables the interior of the pressure water stop valve to form water pressure or release pressure to realize the on-off of water flow.
2. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: the pressure water stop valve comprises an upper cover, a rubber water stop gasket, an inner core pipe, the end face of the water outlet end of the inner core pipe forms a water stop surface, the water inlet end of the inner core pipe is inserted into the water inlet pipe to form a vertical water inlet channel, sealing is realized by arranging a sealing ring between the inner core pipe and the water inlet pipe, the rubber water stop gasket is arranged at the water outlet end of the inner core pipe, the upper cover seals the rubber water stop gasket and the valve body together, a pressure cavity is formed between the upper cover and the rubber water stop gasket, the pressure cavity is provided with a water inlet hole and a pressure relief hole respectively, the water inlet hole is communicated with the vertical water.
3. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: the pressure water stop valve comprises an upper cover and a water stop pad, the upper cover seals the water stop pad in an accommodating cavity of the valve seat, the water stop pad 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 pad and the upper cover, the pressure cavity is provided with a water inlet hole and a pressure relief hole respectively, the water inlet hole is communicated with the water inlet pipe, and the buoyancy control mechanism controls the pressure relief hole to be opened or closed.
4. An anti-siphon toilet tank inlet valve as claimed in claim 3, wherein: the pressure water stop valve is a backpressure pressure water stop valve and comprises an upper cover, a rubber water stop pad and a backpressure pad, wherein a water inlet hole is formed in a guide pillar of the upper cover, the guide pillar penetrates through the rubber water stop pad, a pressure relief hole is formed in the upper cover, the buoyancy control mechanism comprises a water tank, a floating barrel, a connecting rod and a swing rod, the backpressure pad is arranged on the swing rod corresponding to the pressure relief hole, one end of the swing rod is pivoted on the upper cover, the other end of the swing rod is connected with the floating barrel through the connecting rod, the floating barrel is arranged in the water tank, and the water tank is sleeved on a water inlet pipe.
5. An anti-siphon toilet tank inlet valve as claimed in claim 3, wherein: pressure stagnant water valve be needle valve pressure stagnant water valve, including upper end cover, stagnant water pad, stainless steel needle, the pressure release hole run through the setting on stagnant water pad, the inlet opening also set up on stagnant water pad, the stainless steel needle passes the upper end cover and inserts in the pressure release hole, is equipped with the basin on the stainless steel needle, buoyancy control mechanism include water tank, keg float, connecting rod, pendulum rod, correspond pressure release hole department on the pendulum rod and be equipped with the stainless steel needle, pendulum rod one end pivot is established on the upper end cover, the pendulum rod other end passes through the connecting rod and is connected with the keg float, in the water tank was arranged in to the keg float, the water tank cover was on the inlet tube.
6. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: 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 an inclined surface or an inclined channel, 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.
7. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: the valve seat and the water outlet end of the water inlet pipe are integrally formed.
8. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: the valve seat is clamped or screwed at the water outlet end of the water inlet pipe.
9. An anti-siphon toilet tank inlet valve as claimed in claim 1, wherein: the water inlet valve of the toilet tank is a bottom water inlet type water inlet valve or a side water inlet type water inlet valve.
10. An anti-siphon toilet tank inlet valve as claimed in claim 9, wherein: the water inlet pipe is sleeved with a flow guide pipe, and the buoyancy control mechanism is sleeved on the flow guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818855.3U CN210315847U (en) | 2019-05-31 | 2019-05-31 | Anti-siphon toilet cistern inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818855.3U CN210315847U (en) | 2019-05-31 | 2019-05-31 | Anti-siphon toilet cistern inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210315847U true CN210315847U (en) | 2020-04-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920818855.3U Withdrawn - After Issue CN210315847U (en) | 2019-05-31 | 2019-05-31 | Anti-siphon toilet cistern inlet valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN210315847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106948A (en) * | 2019-05-31 | 2019-08-09 | 厦门立业卫浴工业有限公司 | A kind of anti-siphonic closet tank intake valve of water |
-
2019
- 2019-05-31 CN CN201920818855.3U patent/CN210315847U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106948A (en) * | 2019-05-31 | 2019-08-09 | 厦门立业卫浴工业有限公司 | A kind of anti-siphonic closet tank intake valve of water |
| CN110106948B (en) * | 2019-05-31 | 2024-05-14 | 厦门立业卫浴工业有限公司 | Anti-siphon toilet cistern inlet valve |
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