CN110332346B - A kind of anti-siphon toilet tank pressure water stop water inlet valve - Google Patents
A kind of anti-siphon toilet tank pressure water stop water inlet valve Download PDFInfo
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- CN110332346B CN110332346B CN201910740050.6A CN201910740050A CN110332346B CN 110332346 B CN110332346 B CN 110332346B CN 201910740050 A CN201910740050 A CN 201910740050A CN 110332346 B CN110332346 B CN 110332346B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 458
- 229910001220 stainless steel Inorganic materials 0.000 claims description 20
- 239000010935 stainless steel Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/32—Arrangement of inlet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Check Valves (AREA)
Abstract
本发明公开一种防虹吸马桶水箱压力止水进水阀，包括阀座、压力止水阀、浮力控制机构、进水通道、出水通道，阀座上形成容置腔，容置腔的底部设有进水通道的出水端，出水端的端面形成止水面，压力止水阀包括上盖、橡胶止水垫，上盖将橡胶止水垫密封在容置腔内，橡胶止水垫置于止水面上方，橡胶止水垫与容置腔底部之间形成过水腔，出水通道的进水口与过水腔相通，出水通道沿阀座的侧壁向上延伸，出水通道的出口外露在阀座的上边沿外侧，橡胶止水垫与上盖之间形成压力腔，浮力控制机构控制压力腔的水压使橡胶止水垫变形封堵或离开止水面实现进水阀的水流通断。本案优点是出水通道的出水口外露在阀座上边沿外侧，避免水封形成，防止虹吸产生。
The present invention discloses a pressure stop water inlet valve for an anti-siphon toilet tank, comprising a valve seat, a pressure stop valve, a buoyancy control mechanism, a water inlet channel, and a water outlet channel. A receiving chamber is formed on the valve seat, a water outlet end of the water inlet channel is provided at the bottom of the receiving chamber, and the end face of the water outlet end forms a water stop surface. The pressure stop valve comprises an upper cover and a rubber water stop pad. The upper cover seals the rubber water stop pad in the receiving chamber, the rubber water stop pad is placed above the water stop surface, a water passage chamber is formed between the rubber water stop pad and the bottom of the receiving chamber, the water inlet of the water outlet channel is connected to the water passage chamber, the water outlet channel extends upward along the side wall of the valve seat, the outlet of the water outlet channel is exposed outside the upper edge of the valve seat, a pressure chamber is formed between the rubber water stop pad and the upper cover, and the buoyancy control mechanism controls the water pressure of the pressure chamber to deform and seal the rubber water stop pad or leave the water stop surface to realize the water flow interruption of the water inlet valve. The advantage of this case is that the water outlet of the water outlet channel is exposed outside the upper edge of the valve seat, thereby avoiding the formation of a water seal and preventing siphoning.
Description
Technical Field
The invention belongs to a pressure water-stopping inlet valve of a toilet water tank, and particularly relates to an anti-siphon pressure water-stopping inlet valve of the toilet water tank.
Background
The pressure water stopping and inlet valve mainly utilizes the water pressure in a domestic water pipe network to realize water inflow or blocking, and comprises a valve body, a pressure water stopping valve, a buoyancy control mechanism and a water inlet pipe, wherein the pressure water stopping valve is arranged on the valve body, the valve body is connected to the water inlet pipe, and the buoyancy control mechanism enables the pressure water stopping valve to form water pressure or pressure relief inside to realize water flow on-off. The pressure water stopping inlet valve of the toilet cistern is divided into a back pressure inlet valve and a needle valve inlet valve according to different structural modes of the pressure water stopping valve.
As shown in fig. 1 and 2, CN202274155U discloses a toilet tank back pressure water inlet valve, which comprises a valve body 1', a pressure water stop valve 2', a buoyancy control mechanism 3', an inner core tube 23', a water inlet tube 4', a containing cavity at the top of the valve body 1' and a sleeve 18' at the lower part, wherein the valve body 1' is sleeved outside the water inlet tube 4' through the sleeve 18', a water outlet end 231' of the inner core tube 23' protrudes out of the bottom of the containing cavity, the end face of the water outlet end 231' of the inner core tube 23' forms a water stop surface, a water inlet end 232' of the inner core tube 23' is inserted in the space between the water inlet tube 4' and the inner core tube 23' through the containing cavity to form a water outlet channel 12', a water outlet 121' of the water outlet channel 12' extends to the bottom of the toilet tank, the pressure water stop valve 2' is a back pressure valve, and comprises an upper cover 21', a rubber water stop pad 22', the back pressure pad 25', the rubber water stop pad 22' is arranged above the water outlet end 231' of the inner core tube 23', the upper cover 21' seals the rubber water stop pad 22' in the containing cavity of the valve body 1', a water passing cavity 19' is formed between the rubber water stop pad 22' and the bottom of the containing cavity, a pressure cavity 24' is formed between the rubber water stop pad 22' and the upper cover 21', the pressure cavity 24' is respectively provided with a water inlet hole 241' and a pressure relief hole 242', the water inlet hole 241' is arranged on the guide post 211' of the upper cover 21' and communicated with the water inlet channel 11', the guide post 211' penetrates through the rubber water stop pad 22', the pressure relief hole 242' is arranged on the upper cover 21', the buoyancy control mechanism 3' comprises a water tank 31', a floating barrel 32', a connecting rod 33', a swinging rod 34', and a pressure relief hole 242' on the corresponding position on the swinging rod 34' is provided with one end of the back pressure pad 25', 34' which is pivoted on the upper cover 21', the other end of the swing rod 34' is connected with the floating barrel 32' through a connecting rod 33', the floating barrel 32' is arranged in the water tank 31', the water tank 31' is sleeved on the sleeve 18', and the buoyancy control mechanism 3' controls the pressure release hole 242' to be opened and closed.
When the water inlet pipe 4 'is vertically arranged in a toilet water tank (not shown in the figure), the water inlet pipe 4' is connected with a domestic water pipe network, and the pressure water stop valve 2 'is generally higher than the highest water level surface of the toilet water tank so as to avoid siphon, and water in the toilet water tank is prevented from sequentially passing through the water outlet channel 12', the water passing cavity 19 'and the water inlet channel 11' to enter the domestic water pipe network. When the water-saving toilet is used, the water in the toilet water tank is discharged, so that the floating barrel 32' of the buoyancy control mechanism 3' loses buoyancy, the swing rod 34' rotates downwards, the back pressure pad 25' leaves the pressure relief hole 242', water enters the toilet water tank from the water inlet channel 11', the water passing cavity 19' and the water outlet channel 12', and meanwhile, a small part of water enters the pressure cavity 24' through the water inlet hole 241', flows out through the pressure relief hole 242', and the purpose of water inlet is achieved; when the water level in the toilet tank rises to a preset position, the float 32 'of the buoyancy control mechanism 3' is triggered to rise due to buoyancy, the swing rod 34 'rotates upwards, the back pressure pad 25' blocks the pressure relief hole 242 'to prevent the pressure relief hole 242' from draining outwards, and the water pressure in the pressure cavity 24 'suddenly increases due to the fact that the water inlet hole 241' of the pressure cavity is communicated with the water inlet pipe 4', so that the rubber water stop pad 22' is elastically expanded and deformed to block the water stop surface of the water outlet end 231 'of the inner core pipe 23', and water flow between the water inlet channel 11 'and the water outlet channel 12' is cut off, so that the water stop purpose is achieved.
In order to prevent water in the domestic water pipe network from being polluted, the pressure water stopping inlet valve of the toilet water tank needs to be subjected to anti-siphon design, as shown in fig. 1, because the sleeve 18' at the lower part of the valve body 1' is sleeved on the outer side of the water inlet pipe 4', and a water outlet channel 12' is formed between the sleeve 18' and the inner core pipe 23' and the space between the inner core pipe 4', a waterway of the inlet valve directly bends and extends downwards along with the water outlet channel 12' after the water inlet channel 11' extends upwards and passes through the water cavity 19', a water outlet 121' of the water outlet channel 12' extends to the bottom of the toilet water tank, the water outlet 121' of the water outlet channel 12' is far away from the toilet water tank and is provided with a highest water level line, and a water seal is easily formed between the water outlet channel 12' and the bottom of the toilet water tank, so that an anti-siphon pad 5' is arranged in the water passing cavity 19' between the water outlet channel 12' and the water inlet channel 11', and the water outlet end 231' of the inner core pipe 23' cannot be blocked by the rubber water stopping pad 22' when water in the water inlet pipe 4' suddenly loses pressure, and the water flowing backwards into the domestic water pipe network is prevented from polluting the domestic water network.
To this end, the present inventors have improved the outlet passage of the toilet tank pressure water stop inlet valve with respect to the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide an anti-siphon toilet tank pressure water stopping inlet valve, which can prevent water from being sealed when water in the inlet pipe is suddenly out of pressure, and can prevent siphon from being generated.
In order to achieve the above object, the technical scheme of the present invention is as follows:
The utility model provides an anti-siphon closestool water tank pressure stagnant water intaking valve, including the disk seat, the pressure stagnant water valve, buoyancy control mechanism, the inlet channel, the outlet channel, form the holding chamber on the disk seat, the bottom of holding chamber is equipped with the play water end of inlet channel, the terminal surface of play water end forms stagnant water face, the pressure stagnant water valve includes the upper cover, rubber stagnant water pad, the upper cover seals rubber stagnant water pad in the holding intracavity, rubber stagnant water pad is arranged in and is stopped water face top, form the water cavity between rubber stagnant water pad and the holding chamber bottom, the inlet of outlet channel communicates with each other with the water cavity, the outlet channel upwards extends along the lateral wall of disk seat, the delivery port of outlet channel exposes in the upper edge outside of disk seat, form the pressure chamber between rubber stagnant water pad and the upper cover, buoyancy control mechanism control pressure in pressure chamber makes rubber stagnant water pad warp shutoff or leave the rivers break-make of stagnant water face realization intaking valve.
Further, the rubber water stop pad is respectively provided with a water inlet hole and a pressure relief hole, the water inlet hole is used for communicating the pressure cavity with the water outlet end of the water inlet channel, the buoyancy control mechanism is used for controlling the pressure relief hole to be opened or closed to control the water pressure of the pressure cavity so that the rubber water stop pad deforms to block or leaves the water stop surface to realize water flow on-off of the water inlet valve.
Further, the water inlet channel is formed by a water inlet pipe, and the water inlet pipe is arranged at the bottom of the valve seat and is integrally formed with the valve seat.
Further, the water inlet channel is formed by a water inlet pipe, and the water inlet pipe is connected to the bottom of the valve seat and is formed in a split mode with the valve seat.
Further, the water inlet pipe is clamped or screwed at the bottom of the valve seat.
Further, a ferrule is nested in the side wall of the valve seat, a containing cavity is formed in the ferrule, and a water outlet channel is formed between the inner side of the side wall of the valve seat and the ferrule.
Further, the water outlet of the water outlet channel is provided with an inclined plane, so that the water outlet of the water outlet channel faces the outer side of the valve seat.
Further, the water outlet of the water outlet channel is an inclined channel, so that the water outlet of the water outlet channel faces the outer side of the valve seat.
Further, the water outlet of the water outlet channel is higher than the water stop surface of the water outlet port of the water inlet channel.
Further, the pressure water stop valve is a back pressure valve and comprises an upper cover, a rubber water stop pad and a back pressure pad, the water inlet hole is formed in the guide pillar of the upper cover, the guide pillar penetrates through the rubber water stop pad, and the pressure relief hole is formed in the upper cover.
Further, the pressure water stop valve be the needle valve, including upper cover, rubber water stop pad, stainless steel needle, rubber water stop pad includes sealing washer, stagnant water seat, needle cover, stagnant water seat is the ring, the bottom of stagnant water seat is the shutoff face, stagnant water seat middle part is equipped with the needle cover, the needle cover is equipped with vertical through-hole along the axis, the upper segment of vertical through-hole is the pressure release hole, the middle section that corresponds vertical through-hole is equipped with radial inlet port on the lateral wall of needle cover, the lower part and the intra-annular elastic connection of ring of needle cover, sealing washer and the outside elastic connection of stagnant water seat, the upper segment of stainless steel needle is the polished rod with pressure release hole tight fit, the middle section of stainless steel needle is the one section necking down, the basin has been seted up to the lower segment of stainless steel needle.
Further, the lower part of the needle sleeve is elastically connected with the upper edge or the lower edge of the inner side of the circular ring.
Compared with the prior art, the water outlet channel of the traditional water inlet valve is formed by the space between the sleeve and the inner core pipe and the water inlet pipe, the waterway extends downwards, namely, water of the traditional water inlet valve enters from the water inlet channel, overflows through the water stopping surface and continuously flows downwards along the water outlet channel after passing through the water cavity, the scheme is changed into the general design of a person in the field, the main improvement is that the water outlet channel extends upwards along the side wall of the valve seat, the outlet of the water outlet channel is exposed outside the upper edge of the valve seat, the waterway of the water outlet channel extends upwards continuously, and therefore, the outlet position of the water outlet channel is higher than the water stopping surface of the water outlet port of the water inlet channel and is also higher than the highest water level set by a toilet water tank. When water in the water inlet channel is suddenly in pressure loss, the rubber water stop pad or the water stop pad can not block the water stop surface of the water outlet end of the water inlet channel, the water outlet of the water outlet channel is used for directly supplementing the atmospheric pressure into the water inlet pipe, so that the air pressure in the water inlet channel is kept in relative balance with the outside, the generation of siphonage is prevented, the siphon prevention function is ensured not to fail permanently, the siphon prevention pad or the siphon prevention plug component and the structural failure risk are also omitted, and the valve seat structure is designed to be simpler.
Drawings
FIG. 1 is a side cross-sectional view of a conventional bottom entry water inlet valve;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a longitudinal cross-sectional view I of the present invention;
FIG. 5 is a second longitudinal cross-sectional view of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 4;
FIG. 7 is an exploded view of FIG. 6;
FIG. 8 is an exploded view of FIG. 6;
FIG. 9 is a schematic diagram of the operation of the present invention;
FIG. 10 is an exploded view of the threaded connection of the inlet valve seat and inlet tube of the present invention;
FIG. 11 is a second schematic diagram of the operation of the present invention;
FIG. 12 is a partial sectional view showing a water stopping state of the present invention;
FIG. 13 is a partial cross-sectional view of the water intake state of the present invention;
FIG. 14 is a partial cross-sectional view of the present invention in a water out state;
FIG. 15 is a combination rubber water stop pad and stainless steel needle of the needle valve of the present invention;
FIG. 16 is a cross-sectional view of the rubber water stop pad and stainless steel needle combination of the needle valve of the present invention;
FIG. 17 is an exploded view of the rubber water stop pad and stainless steel needle of the needle valve of the present invention;
FIG. 18 is a perspective view of the rubber water stop pad of the needle valve of the present invention;
FIG. 19 is a cross-sectional view of the rubber water stop pad of the needle valve of the present invention;
FIG. 20 is a two-dimensional view of the rubber water stop pad of the needle valve of the present invention;
FIG. 21 is a cross-sectional view of the rubber water stop pad of the needle valve of the present invention;
FIG. 22 is a cross-sectional view of the rubber water stop pad and stainless needle combination of the needle valve of the present invention;
FIG. 23 is a partial sectional view showing a water stopping state of the present invention;
fig. 24 is a partial cross-sectional view of the present invention in a water-out state.
Detailed Description
In order to more clearly illustrate the embodiments of the invention or the solutions of the prior art, the drawings which are necessary for the description of the embodiments or the prior art will be presented, it being obvious that the drawings in the description below are only examples and that other solutions can be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 3-7, an anti-siphon toilet tank pressure water stopping inlet valve comprises a valve seat 1, a pressure water stopping valve 4, a buoyancy control mechanism 2, a water inlet channel 3 and a water outlet channel 5, wherein a containing cavity 10 is formed on the valve seat 1, a water outlet end 31 provided with the water inlet channel 3 is arranged at the bottom 11 of the containing cavity 10, a water stopping surface 32 is formed on the end face of the water outlet end 31, the pressure water stopping valve 4 comprises an upper cover 41 and a rubber water stopping pad 42, the upper cover 41 seals the rubber water stopping pad 42 in the containing cavity 10, the rubber water stopping pad 42 is arranged above the water stopping surface 32, a water passing cavity 12 is formed between the rubber water stopping pad 42 and the bottom 11 of the containing cavity 10, the water inlet 51 of the water outlet channel 5 is communicated with the water passing cavity 12, the water outlet channel 5 extends upwards along the side wall of the valve seat 1, a water outlet 52 of the water outlet channel 5 is exposed to the outer side 14 at the upper edge of the valve seat 1, a pressure cavity 43 is formed between the rubber water stopping pad 42 and the upper cover 41, the buoyancy control mechanism 2 controls the water pressure of the pressure cavity 43 to deform the rubber water stopping pad 42 or stop off the water surface 32 to realize on-off of the water inlet valve.
As shown in fig. 4, 6 and 9, the water inlet channel 3 is directly formed by the water inlet pipe 33, the existing inner core pipe is omitted, the water inlet pipe 33 is used for replacing the inner core pipe, so that the water inlet pipe 33 has the function of the inner core pipe, namely, the water stop surface 32 is directly formed on the end face of the water outlet end 31 of the water inlet channel 3, the installation of the inner core pipe in the valve seat 1 is reduced, and unnecessary water leakage points are reduced. The water inlet pipe 33 is arranged at the bottom of the valve seat 1 and is integrally formed with the valve seat 1, and of course, the water inlet pipe 33 can be formed separately with the valve seat 1, the water inlet pipe 33 is screwed at the bottom of the valve seat 1 (as shown in fig. 10), and the water inlet pipe 33 can be clamped at the bottom of the valve seat 1 according to the design requirement of a product. Of course, the valve seat 1 cannot move on the water inlet pipe 33, and the height cannot be adjusted, so that the pressure water stop valve 4 cannot be adjusted to the distance between the water inlet pipe 33 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 33 is properly set.
As shown in fig. 4-8, since the water inlet 51 of the water outlet channel 5 is communicated with the water passing cavity 12 and the water outlet 52 is exposed outside the upper edge outer side 14 of the valve seat 1, the water outlet channel 5 is bent, in order to better manufacture the water outlet channel 5, a ferrule 15 corresponding to the inner side 13 of the side wall of the valve seat 1 is provided, a containing cavity 10 is formed in the ferrule 15, the ferrule 15 is nested in the inner side 13 of the side wall of the valve seat 1, and the water outlet channel 5 is formed between the inner side 13 of the side wall of the valve seat 1 and the ferrule 15.
As shown in fig. 4, 5 and 7, the water outlet 52 of the water outlet channel 5 is inclined, so that the water outlet 52 of the water outlet channel 5 faces the outer side 14 of the upper edge of the valve seat 1, of course, the water outlet 52 of the water outlet channel 5 may also be an inclined channel, so that the water coming out from the water outlet 52 of the water outlet channel 5 flows into the toilet tank along the outer side 14 of the upper edge of the valve seat 1, the water will not splash randomly, the water inlet noise can be reduced, meanwhile, the water outlet 52 of the water outlet channel 5 is exposed at the outer side 14 of the upper edge of the valve seat 1 and is not a relatively closed hollow pipe, the water flows on the outer sides of the valve seat 1 and the water inlet pipe 33, resonance is not formed, and the water inlet noise can also be reduced.
As shown in fig. 4 and 5, in order to better prevent splashing of water, a flow guide pipe 6 is sleeved on the water inlet pipe 33, and the upper end 61 of the flow guide pipe 6 is in a funnel shape and is connected below the water outlet 52 of the water outlet channel 5. Naturally, after the water inlet pipe 33 is sleeved with the diversion pipe 6, the buoyancy control mechanism 2 is sleeved on the diversion pipe 6.
The pressure water stop valve 4 is usually higher than the highest water level of the toilet water tank to avoid siphon, and water in the toilet water tank is prevented from entering the domestic water pipe network through the water outlet channel 11 and the water inlet pipe 33. The invention not only keeps the design that the pressure water stop valve 4 is higher than the highest water level surface of the toilet water tank, but also improves the water outlet path of the water outlet channel 5, designs that the water outlet channel 5 extends upwards along the side wall of the valve seat 1, and the water outlet 52 of the water outlet channel 5 is exposed out of the outer side 14 of the upper edge of the valve seat 1, and the water path of the water outlet channel 5 continues to extend upwards, so that the water outlet 52 of the water outlet channel 5 is higher than the water stop surface 32 of the water outlet end 31 of the water inlet channel 3 and is also higher than the highest water level line set by the toilet water tank. When the water in the water inlet pipe 33 is suddenly in pressure loss, the rubber water stop pad 42 can not block the water stop surface 32 of the water outlet end 31 of the water inlet channel 3, the water outlet 52 of the water outlet channel 5 directly supplements the atmospheric pressure into the water inlet pipe 33, so that the air pressure in the water inlet channel 3 is kept in relative balance with the outside, the siphon is prevented from being generated, the siphon prevention function is ensured not to be invalid forever, the risk of the siphon prevention pad or the siphon prevention plug component and the structural failure is also saved, and the valve seat structure is designed to be simpler.
The invention aims at preventing siphon generation, and mainly changes the waterway of a water inlet valve, so that the pressure water stop valve 4 and the buoyancy control mechanism 2 adopt the prior structures, and according to the knowledge of the industry, the pressure water stop valve 4 is divided into a back pressure valve and a needle valve according to different structural modes of the pressure water stop valve.
As shown in FIG. 15The pressure water stop valve 4 shown in fig. 24 is a needle valve and mainly comprises an upper cover 41, a rubber water stop pad 42 and a stainless steel needle 46, wherein the rubber water stop pad 42 comprises a sealing ring 421, a water stop seat 422 and a needle sleeve 423, the water stop seat 422 is a circular ring, the bottom 426 of the water stop seat 422 is a sealing surface, the middle part of the water stop seat 422 is provided with the needle sleeve 423, a longitudinal through hole 40 is arranged along the axis of the needle sleeve 423, the upper section of the longitudinal through hole 40 is a pressure relief hole 45, a radial water inlet 44 is arranged on the side wall of the needle sleeve 423 corresponding to the middle section of the longitudinal through hole 40, the lower part of the needle sleeve 423 is connected with the inner side 427 of the water stop seat 422, the sealing ring 421 is elastically connected with the outer side 429 of the water stop seat 422, the upper section of the stainless steel needle 46 is a polished rod 461 tightly matched with the pressure relief hole 45, the middle section of the stainless steel needle 46 is a necking 462, and the lower section of the stainless steel needle 46 is provided with a water passing groove 47.
As shown in fig. 4-24, the upper cover 41 seals the rubber water stop pad 42 in the containing cavity 10 of the valve seat 1, the rubber water stop pad 42 is positioned above the water stop surface 32 of the water outlet end 31 of the water inlet channel 3, a pressure cavity 43 is formed between the rubber water stop pad 42 and the upper cover 41, a water inlet hole 44 on the rubber water stop pad 42 communicates the pressure cavity 43 with the water outlet end 31 of the water inlet channel 3, the buoyancy control mechanism 2 comprises a water tank 20, a float 21, a connecting rod 22 and a swing rod 23, a stainless steel needle 46 is fixed on the swing rod 23 at a position corresponding to the pressure release through hole 45, the stainless steel needle 46 is inserted in the longitudinal through hole 40 through the upper cover 41, one end of the swing rod 23 is pivoted on the upper cover 41, the other end of the swing rod 23 is connected with the float 21 through the connecting rod 22, the float 21 is arranged in the water tank 20, when the buoyancy of the float 21 in the water tank 20 is lost, the swing rod 23 rotates on the upper cover 41 to drop, the stainless steel needle 46 is partially pulled out from the longitudinal through hole 40, at the moment, the necking 462 of the stainless steel needle 46 corresponds to the pressure relief hole 45, the pressure relief hole 45 is opened (as shown in fig. 14 and 24), water flows out from the gap between the necking 462 and the pressure relief hole 45, so that the pressure cavity 43 inside the rubber water stop pad 42 cannot generate water pressure, the rubber water stop pad 42 continuously deforms towards the upper cover 41 side under the action of the water inlet pressure, the rubber water stop pad 42 is separated from the water stop surface 32 of the water inlet channel 3 (as shown in fig. 13, 14 and 24), and the water enters from the water inlet pipe 33 and flows into the toilet water tank from the water outlet channel 5, and the purpose of water inlet is achieved. When the float 21 receives a floating force in the water tank 20, the swing rod 23 is lifted by rotating on the upper cover 41, the polish rod 461 of the stainless steel needle 46 is completely inserted into the pressure relief hole 45 to form a tight fit with the pressure relief hole 45, the pressure relief hole 45 is closed (as shown in fig. 9, 11, 12 and 23), the pressure cavity 43 is communicated with the water outlet end 31 of the water inlet channel 3 due to the water inlet hole 44, the water pressure inside the rubber water stop pad 42 is larger and larger, the rubber water stop pad 42 is elastically deformed, the bottom 426 of the water stop seat 422 is pressed on the water stop surface 32 of the water inlet channel 3 (as shown in fig. 12 and 23), and the water inlet is closed, so that an automatic water stop function is realized. The water pressure of the pressure cavity 43 is controlled to deform the rubber water stop pad 42 to block or separate from the water stop surface 32 so as to realize water flow on-off of the water inlet valve.
In order to make the elastic deformation of the rubber water stop pad 42 more sensitive, the sealing ring 421 is connected with the ring outer side 429 of the water stop seat 422 through the first elastic bending part 424, the water stop seat 422 is connected with the ring inner side 427 of the needle sleeve 423 through the second elastic bending part 425, as shown in fig. 18 and 19, the upper edge of the ring inner side 427 of the needle sleeve 423 is connected with the lower part of the needle sleeve 423 through the second elastic bending part 425, as shown in fig. 20 and 21, the lower edge of the ring inner side 427 of the needle sleeve 423 is connected with the lower part of the needle sleeve 423 through the second elastic bending part 425, and the rubber water stop pad 42 has two elastic bending parts, so that the rubber water stop pad has the characteristic of sensitive active deformation.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740050.6A CN110332346B (en) | 2019-08-12 | 2019-08-12 | A kind of anti-siphon toilet tank pressure water stop water inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740050.6A CN110332346B (en) | 2019-08-12 | 2019-08-12 | A kind of anti-siphon toilet tank pressure water stop water inlet valve |
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| Publication Number | Publication Date |
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| CN110332346A CN110332346A (en) | 2019-10-15 |
| CN110332346B true CN110332346B (en) | 2024-11-26 |
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| CN201910740050.6A Active CN110332346B (en) | 2019-08-12 | 2019-08-12 | A kind of anti-siphon toilet tank pressure water stop water inlet valve |
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| WO2022226836A1 (en) * | 2021-04-28 | 2022-11-03 | 厦门立业卫浴工业有限公司 | Water intake valve fixed on drainage valve |
| CN114382140B (en) * | 2022-01-19 | 2024-09-13 | 谢家福 | Multi-valve spout for toilet |
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| 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 |
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| CN110332346A (en) | 2019-10-15 |
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