CN114811099A - High-temperature automatic cut-off water mixing valve - Google Patents
High-temperature automatic cut-off water mixing valve Download PDFInfo
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- CN114811099A CN114811099A CN202210640787.2A CN202210640787A CN114811099A CN 114811099 A CN114811099 A CN 114811099A CN 202210640787 A CN202210640787 A CN 202210640787A CN 114811099 A CN114811099 A CN 114811099A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 385
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 16
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 claims description 5
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 206010053615 Thermal burn Diseases 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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- Temperature-Responsive Valves (AREA)
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Abstract
A high-temperature automatic cut-off water mixing valve comprises a valve body, a hot water joint arranged on the left side of the lower surface of the valve body, a cold water joint arranged on the right side of the lower surface of the valve body, and a water outlet joint arranged on the front side of the middle part of the valve body, wherein a water mixing cavity communicated with the water outlet joint is arranged in the middle of the valve body; the lower part of the water mixing cavity is provided with an annular sealing step which is lower than the hot water hole; the upper part of the water mixing cavity is provided with a temperature adjusting mechanism matched with the water mixing cavity; and a piston core is arranged in the water mixing cavity, and the peripheral surface of the piston core is attached to the inner wall of the water mixing cavity. The high-temperature automatic cutting water mixing valve can automatically cut off hot water when cold water is suddenly closed, effectively avoids the situation that high-temperature hot water which is not mixed with the cold water directly flows out of the water outlet joint to cause scalding, and effectively avoids potential safety hazards.
Description
Technical Field
The invention relates to a water mixing valve, in particular to a high-temperature automatic cut-off water mixing valve.
Background
The water mixing valve is a valve for mixing cold water and hot water, and can realize a constant temperature effect by using a thermosensitive element, the water mixing valve is provided with a cold water joint and a hot water joint, the cold water joint is connected with a pipeline for conveying cold water, the hot water joint is connected with a pipeline for conveying hot water, warm water output by a water outlet joint of the water mixing valve is actually generated after the cold water and the hot water are mixed, the temperature of the hot water directly input into a valve body of the water mixing valve through the hot water joint is extremely high, people can be easily scalded, the condition that the cold water stops conveying suddenly in the actual use process of the water mixing valve can occur, under the condition that the water mixing valve simply enters the hot water, the cold water can not adjust the hot water with high temperature to the actually required temperature, at the moment, the hot water with high temperature can directly flow out from the water outlet joint of the water mixing valve, the scalding condition is very easy to occur, and the traditional water mixing valve does not have the function of automatically cutting off the hot water under the high temperature condition, there is a serious safety risk.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a high-temperature automatic cut-off water mixing valve which can automatically cut off hot water when cold water is suddenly closed, effectively avoids the situation that high-temperature hot water which is not mixed with the cold water directly flows out of a water outlet joint to cause scalding, and effectively avoids potential safety hazards.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a high-temperature automatic cut-off water mixing valve, which comprises a valve body, a hot water joint arranged on the left side of the lower surface of the valve body, a cold water joint arranged on the right side of the lower surface of the valve body, and a water outlet joint arranged on the front side of the middle part of the valve body, wherein a water mixing cavity communicated with the water outlet joint is arranged in the middle part of the valve body, the hot water joint is communicated with the water mixing cavity through a hot water hole, and the cold water joint is communicated with the water mixing cavity through a cold water hole, and the high-temperature automatic cut-off water mixing valve is characterized in that: the hot water hole is lower than the cold water hole; the lower part of the water mixing cavity is provided with an annular sealing step which is lower than the hot water hole; the upper part of the water mixing cavity is provided with a temperature adjusting mechanism matched with the water mixing cavity; a piston core is arranged in the water mixing cavity, the peripheral surface of the piston core is attached to the inner wall of the water mixing cavity, and the piston core is positioned under the temperature adjusting mechanism; a water mixing groove is formed in the center of the upper surface of the piston core; a sealing head is arranged at the center of the lower surface of the piston core; the peripheral surface of the sealing head is provided with an annular sealing groove; a water-stopping gasket matched with the sealing groove is arranged in the sealing groove, and the outer edge of the water-stopping gasket protrudes outwards out of the sealing groove; the water-stopping gasket is positioned right above the sealing step, and the outer diameter of the water-stopping gasket is larger than the inner diameter of the sealing step; the center of the lower surface of the sealing head is provided with a mounting hole communicated with the water mixing tank; a cutting mechanism matched with the temperature regulating mechanism is arranged in the mounting hole; the outer edge of the lower surface of the sealing head is provided with a plurality of water through holes which are uniformly distributed in the circumferential direction, and the water through holes are communicated with the water mixing tank.
The temperature adjusting mechanism comprises a middle screw hole arranged on the upper surface of the middle part of the valve body, and the middle screw hole is communicated with the water mixing cavity; the valve cover matched with the middle screw hole is screwed in the middle screw hole; the upper surface of the center of the valve cover is provided with a valve rod hole communicated with the water mixing cavity; a temperature regulating valve rod matched with the valve rod is screwed in the valve rod hole; the upper end of the temperature regulating valve rod penetrates out of the valve rod hole upwards and is provided with a rotating head; the center of the lower surface of the temperature regulating valve rod is provided with a temperature regulating hole; the orifice at the lower end of the temperature regulating hole is screwed with a straight guide screw; a guide hole is formed in the center of the linear guide screw; a push plate attached to the upper surface of the linear guide screw is arranged in the temperature adjusting hole; the center of the lower surface of the push plate is provided with a guide post matched with the guide hole; a positioning column is arranged in the center of the upper surface of the push plate; an upper spring sleeved outside the positioning column is arranged between the bottom of the temperature adjusting hole and the upper surface of the push plate.
The middle of the lower surface of the straight guide screw is provided with a straight groove.
The cutting mechanism comprises a thermosensitive element, and the thermosensitive element consists of a limiting part, a positioning part arranged in the center of the lower surface of the limiting part and an upper top part arranged in the center of the upper surface of the limiting part; the upper surface of the limiting part is attached to the lower surface of the sealing head, and the upper top of the limiting part is fixed in the mounting hole; the upper end of the upper top part penetrates out of the mounting hole upwards and is provided with a mandril; the upper end of the ejector rod is pressed against the center of the lower end face of the guide post; the bottom of the water mixing cavity is provided with a positioning head coaxial with the positioning part; and a lower spring sleeved outside the positioning head and the positioning part is arranged between the lower surface of the limiting part and the bottom of the water mixing cavity.
The outer edge of the lower surface of the sealing head is provided with a conical surface which is wide at the top and narrow at the bottom, and the orifice at the lower end of the limber hole is positioned on the conical surface.
The limber hole is communicated with the sealing groove through a suction port.
A hot water cavity communicated with a hot water joint is arranged in the left part of the valve body, and the hot water joint is communicated with a hot water hole through the hot water cavity; a cold water cavity communicated with a cold water joint is arranged in the right part of the valve body, and the cold water joint is communicated with the cold water hole through the cold water cavity; the upper surface of the left part of the valve body is provided with a left screw hole communicated with the hot water cavity; the left screw hole is in threaded connection with a left plug; the lower part of the hot water cavity is provided with an annular left limiting step; a left filter screen cylinder matched with the hot water cavity is arranged between the left limiting step and the left plug, and the port at the outer end of the hot water hole is covered by the left filter screen cylinder; the upper surface of the right part of the valve body is provided with a right screw hole communicated with the cold water cavity; the right screw hole is in threaded connection with a right plug; the lower part of the cold water cavity is provided with an annular right limiting step; a right filter screen cylinder matched with the cold water cavity is arranged between the right limiting step and the right plug, and the right filter screen cylinder covers the orifice at the outer end of the cold water hole; and the hot water hole and the cold water hole are both provided with a check valve core.
The sealing step is wide at the upper part and narrow at the lower part; the lower surface of the water stop gasket is provided with a flow guide part sleeved outside the sealing head, and the flow guide part is wide at the upper part and narrow at the lower part; and a flow increasing channel is formed between the step surface of the sealing step and the outer wall of the flow guide part.
The outer wall of the flow guiding part is provided with a plurality of large annular arc-shaped bulges from top to bottom.
The middle part of the outer wall of the flow guide part is provided with a plurality of small annular arc-shaped protrusions, and the radian of the small arc-shaped protrusions is smaller than that of the large arc-shaped protrusions.
The invention has the beneficial effects that:
compared with the prior art, the high-temperature automatic cut-off water mixing valve adopting the structure can automatically seal the sealing step through the water stop gasket when the cold water joint suddenly stops feeding cold water, and even if the hot water joint continuously feeds hot water, the hot water cannot flow into the water mixing cavity through the hot water hole, so that the condition that the hot water is not mixed with the cold water and directly flows out through the water outlet joint to cause scald is effectively avoided, the automatic cut-off of the hot water is realized when the water temperature is high, the potential safety hazard is effectively avoided, and the scald-proof effect is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a high-temperature automatic cut-off water mixing valve according to the present invention;
FIG. 2 is an enlarged view of section A of FIG. 1;
FIG. 3 is a schematic structural view of a sealing step of the high-temperature automatic cut-off water mixing valve of the present invention, which is wide at the top and narrow at the bottom;
FIG. 4 is an enlarged view of section B of FIG. 3;
FIG. 5 is a schematic structural view of a water stop gasket provided with a flow guide part;
FIG. 6 is a schematic structural view of the water-stop gasket provided with a large arc-shaped protrusion;
fig. 7 is a schematic structural view when the water stop gasket is provided with a small arc-shaped bulge.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 7, the present invention provides a high temperature automatic cut-off water mixing valve, which includes a valve body 1, a hot water connector 2 disposed on the left side of the lower surface of the valve body 1, a cold water connector 3 disposed on the right side of the lower surface of the valve body 1, and a water outlet connector disposed on the front side of the middle portion of the valve body 1, wherein a water mixing cavity 4 communicated with the water outlet connector is disposed in the middle portion of the valve body 1, the hot water connector 2 is communicated with the water mixing cavity 4 through a hot water hole 5, the cold water connector 3 is communicated with the water mixing cavity 4 through a cold water hole 6, and the hot water hole 5 is lower than the cold water hole 6; the lower part of the water mixing cavity 4 is provided with an annular sealing step 7, and the sealing step 7 is lower than the hot water hole 5; the upper part of the water mixing cavity 4 is provided with a temperature adjusting mechanism matched with the water mixing cavity; a piston core 8 is arranged in the water mixing cavity 4, the peripheral surface of the piston core 8 is attached to the inner wall of the water mixing cavity 4, and the piston core 8 is positioned under the temperature adjusting mechanism; a water mixing tank 9 is arranged in the center of the upper surface of the piston core 8; a sealing head 10 is arranged in the center of the lower surface of the piston core 8; the peripheral surface of the sealing head 10 is provided with an annular sealing groove 11; a water-stopping gasket 12 matched with the sealing groove 11 is arranged in the sealing groove 11, and the outer edge of the water-stopping gasket 12 protrudes outwards out of the sealing groove 11; the water stop gasket 12 is positioned right above the sealing step 7, and the outer diameter of the water stop gasket 12 is larger than the inner diameter of the sealing step 7; the center of the lower surface of the sealing head 10 is provided with a mounting hole 13 communicated with the water mixing tank 9; a cutting mechanism matched with the temperature adjusting mechanism is arranged in the mounting hole 13; a plurality of water through holes 14 which are uniformly distributed in the circumferential direction are formed in the outer edge of the lower surface of the sealing head 10, and the water through holes 14 are communicated with the water mixing tank 9.
The temperature adjusting mechanism comprises a middle screw hole 15 arranged on the upper surface of the middle part of the valve body 1, and the middle screw hole 15 is communicated with the water mixing cavity 4; a valve cover 16 matched with the middle screw hole 15 is screwed in the middle screw hole; the central upper surface of the valve cover 16 is provided with a valve rod hole 17 communicated with the water mixing cavity 4; a temperature regulating valve rod 18 matched with the valve rod hole 17 is screwed in the valve rod hole 17; the upper end of the temperature adjusting valve rod 18 penetrates out of the valve rod hole 17 upwards and is provided with a rotating head 19; the center of the lower surface of the temperature regulating valve rod 18 is provided with a temperature regulating hole 20; a straight guide screw 21 is screwed in the orifice at the lower end of the temperature regulating hole 20; a guide hole 22 is formed in the center of the straight guide screw 21; a push plate 23 attached to the upper surface of the linear guide screw 21 is arranged in the temperature adjusting hole 20; a guide post 24 matched with the guide hole 22 is arranged at the center of the lower surface of the push plate 23; a positioning column 25 is arranged at the center of the upper surface of the push plate 23; an upper spring 26 sleeved outside the positioning column 25 is arranged between the bottom of the temperature adjusting hole 20 and the upper surface of the push plate 23.
The middle part of the lower surface of the straight guide screw 21 is provided with a straight groove 27.
The cutting mechanism includes a thermosensitive element 28, and the thermosensitive element 28 is composed of a limiting part 2801, a positioning part 2802 arranged in the center of the lower surface of the limiting part 2801, and an upper top 2803 arranged in the center of the upper surface of the limiting part 2801; the upper surface of the limiting part 2801 is attached to the lower surface of the sealing head 10, and the upper top 2803 is fixed in the mounting hole 13; the upper end of the upper top 2803 extends out of the mounting hole 13 and is provided with a top rod 29; the upper end of the ejector rod 29 is pressed against the center of the lower end face of the guide column 24; the bottom of the water mixing cavity 4 is provided with a positioning head 30 which is coaxial with the positioning part 2802; a lower spring 31 sleeved outside the positioning head 30 and the positioning part 2802 is arranged between the lower surface of the limiting part 2801 and the bottom of the water mixing cavity 4.
The outer edge of the lower surface of the sealing head 10 is provided with a conical surface 32 which is wide at the top and narrow at the bottom, and the lower end opening of the water through hole 14 is positioned on the conical surface 32.
The water passage hole 14 is communicated with the seal groove 11 through a suction port 33.
A hot water cavity 34 communicated with the hot water joint is arranged in the left part of the valve body 1, and the hot water joint 2 is communicated with the hot water hole 5 through the hot water cavity 34; a cold water cavity 35 communicated with the cold water joint 3 is arranged in the right part of the valve body 1, and the cold water joint 3 is communicated with the cold water hole 6 through the cold water cavity 35; the upper surface of the left part of the valve body 1 is provided with a left screw hole 36 communicated with the hot water cavity 34; the left screw hole 36 is in threaded connection with a left plug 37; the lower part of the hot water cavity 34 is provided with an annular left limiting step 38; a left filter screen cylinder 39 matched with the hot water cavity 34 is arranged between the left limiting step 38 and the left plug 37, and the outer end orifice of the hot water hole 5 is covered by the left filter screen cylinder 39; the upper surface of the right part of the valve body 1 is provided with a right screw hole 40 communicated with the cold water cavity 35; the right screw hole 40 is in threaded connection with a right plug 41; the lower part of the cold water cavity 35 is provided with an annular right limit step 42; a right filter screen cylinder 43 matched with the cold water cavity 35 is arranged between the right limiting step 42 and the right plug 41, and the port of the outer end of the cold water hole 6 is covered by the right filter screen cylinder 43; a check valve core 44 is arranged in each of the hot water hole 5 and the cold water hole 6.
The sealing step 7 is wide at the upper part and narrow at the lower part; the lower surface of the water-stopping gasket 12 is provided with a flow guide part 45 sleeved outside the sealing head 10, and the flow guide part 45 is wide at the top and narrow at the bottom; a flow increasing channel 46 is formed between the step surface of the sealing step 7 and the outer wall of the flow guide part 45.
The outer wall of the flow guiding part 45 is provided with a plurality of large arc-shaped protrusions 47 in an annular shape from top to bottom.
The middle part of the outer wall of the flow guide part 45 is provided with a plurality of small annular arc-shaped protrusions 48, and the radian of each small arc-shaped protrusion 48 is smaller than that of each large arc-shaped protrusion 47.
The using method of the invention is as follows:
when the water mixing valve is used, hot water flows into the hot water cavity 34 through the hot water connector 2, then flows into the water mixing cavity 4 through gaps among the hot water hole 5, the lower surface of the water stop gasket 12 and the sealing step 7 in sequence, one part of hot water is positioned in the space below the sealing head 10, the other part of hot water flows upwards into the water mixing groove 9 through the water through hole 14, meanwhile, cold water flows into the cold water cavity 35 through the cold water connector 3, then flows into the water mixing cavity 4 through the cold water hole 6, flows into the water mixing groove 9 through the gap between the lower end surface of the valve cover 16 and the upper surface of the piston core 8, is mixed with the hot water in the water mixing groove 9, the cold water has fluidity, one part of cold water flows downwards into the space below the sealing head 10 through the water through hole 14, is mixed with the hot water in the space below the sealing head 10, and at the moment, the heat sensitive element 28 is wrapped by the mixed water of the hot water and the cold water, the thermal element 28 is the existing temperature sensing bulb in fact, can take place corresponding swelling reaction according to actual temperature, along with the thermal element 28 is wrapped up by the mixing water, the temperature of mixing water can be perceived by the thermal element 28 the very first time, the degree of expansion of thermal element 28 just makes the stagnant water gasket 12 on the piston core 8 be in sealed step 7 top at this moment, there is the hot water that can supply hot water entering mixing chamber 4 between stagnant water gasket 12 and the sealed step 7, and the mixing water that mixes through hot water and cold water in mixing chamber 4 finally can flow through the play water swivel that link up mutually with mixing chamber for use.
If the cold water joint 3 stops feeding water suddenly, the hot water joint 2 continues to convey hot water into the water mixing cavity 4, at the moment, the water temperature in the water mixing cavity 4 increases suddenly, the thermosensitive element 28 senses the high temperature for the first time and generates corresponding expansion reaction, at the moment, the upper top 2803 of the thermosensitive element 28 pushes up the guide post 24 through the ejector rod 29, the push plate 23 compresses the upper spring 26 upwards along with the upward movement of the guide post 24, when the upper spring 26 is compressed to the limit, the upper top 2803 continues to push up along with the upward movement of the upper top, the piston core 8 is pushed backwards and moves downwards, at the moment, the piston core 8 drives the water stop gasket 12 to move downwards, finally, the water stop gasket 12 is attached to the sealing step 7, the sealing step is located below the hot water hole 5, and after the sealing step 7 is sealed by the water stop gasket 12, the hot water in the hot water hole 5 cannot enter the water mixing cavity 4 through a gap between the lower surface of the water stop gasket 12 and the sealing step 7, at the moment, the hot water hole 5 is blocked and sealed, so that the situation that hot water enters the water mixing cavity 4 and then flows out through the water outlet joint independently is effectively avoided.
In conclusion, the sealing step 7 can be automatically sealed by the water-stop gasket 12 when the cold water joint 3 suddenly stops feeding cold water, and even if the hot water joint 2 continuously feeds hot water, the hot water cannot flow into the water mixing cavity 4 through the hot water hole 5, so that the situation that the hot water is not mixed with the cold water and directly flows out through the water outlet joint to cause scald is effectively avoided, the hot water is automatically cut off when the water temperature is high, the potential safety hazard is effectively avoided, and the scald-proof effect is achieved.
The middle part of the lower surface of the straight guide screw 21 is provided with a straight groove 27, only a straight screwdriver needs to be clamped in the straight groove 27, the straight guide screw 21 can be easily screwed out from the hole at the lower end of the temperature adjusting hole 20, and the guide hole 22 of the straight guide screw 21 can play a role in guiding the guide column 24, so that the upper top 2803 of the thermosensitive element 28 is guided, and the situation that the sealing effect is influenced because the water stop gasket 12 cannot be tightly attached to the sealing step 7 due to the fact that the piston core 8 tilts due to the eccentricity of the upper top 2803 during jacking is avoided.
The outer edge of the lower surface of the sealing head 10 is provided with a conical surface 32 which is wide at the top and narrow at the bottom, the lower end orifice of the limber hole 14 is positioned on the conical surface 32, when hot water sequentially passes through the hot water hole 5, and a gap between the lower surface of the water stop gasket 12 and the sealing step 7 flows into the water mixing cavity 4, the hot water directly impacts on the conical surface 32, because the conical surface 32 is wide at the top and narrow at the bottom, a certain buffering effect can be achieved, the situation that the hot water directly impacts to cause overlarge pressure and easily generates noise is avoided, and the conical surface can simultaneously achieve the effect of guiding water flow, so that the water flow quickly encloses the thermosensitive element 28 along the track of the conical surface 32, and the temperature sensing efficiency of the thermosensitive element 28 is effectively improved.
The limbers 14 link up with the seal groove 11 through a suction mouth 33 mutually, when filling up water in water mixing tank 9 and the limbers 14, along with hot water constantly enters into mixing water cavity 4, the pressure in the limbers 14 then can be less than the outer pressure of piston core 8 this moment, suction mouth 33 position produces the negative pressure, with the absorption firmly of stagnant water gasket 12 in seal groove 11, thereby effectively improve the steadiness when stagnant water gasket 12 inlays in seal groove 11, meanwhile, along with stagnant water gasket 12 is adsorbed on seal groove 11, can effectively play the silence and prevent the effect of water hammer.
When hot water flows into the hot water hole 5 through the hot water cavity 34, the hot water inevitably passes through the left filter screen cylinder 39, the left filter screen cylinder 39 can effectively filter impurities in the hot water, the cleanness of the hot water is ensured, and when the left filter screen cylinder 39 needs to be cleaned, the left filter screen cylinder 39 can be easily pulled out from the hot water cavity 34 for cleaning only by screwing the left plug 37 out of the left screw hole 36; in cold water flows into cold water hole 6 through cold water chamber 35, must pass through right filter screen section of thick bamboo 43, right filter screen section of thick bamboo 43 can carry out effective filtration to the impurity in the cold water, guarantees the clean degree of cold water, when needing to wash right filter screen section of thick bamboo 43, only needs upwards to screw out right end cap 41 from right screw 40, alright filter screen section of thick bamboo 43 is taken out from cold water chamber 35 easily and is washd.
The non-return valve core 44 is arranged in the hot water hole 5 and the cold water hole 6, the non-return valve core 44 in the hot water hole 5 can effectively avoid the condition that the mixed water in the mixed water cavity flows back towards the hot water cavity 34 through the hot water hole 5, and the non-return valve core 44 in the cold water hole 6 can effectively avoid the condition that the mixed water in the mixed water cavity 4 flows back towards the cold water cavity 35 through the cold water hole 6.
The rotating head 19 is regular hexagon, the rotating head 19 can be easily rotated by a hexagon wrench, when the rotating head 19 rotates, the temperature adjusting valve rod 18 rotates along with the rotating head, when the temperature adjusting valve rod 18 moves upwards along the track of the middle screw hole 15, the piston core 8 moves upwards along with the temperature adjusting valve rod, at the moment, the gap between the lower surface of the water stopping gasket 12 and the sealing step 7 is enlarged, the flow rate of the hot water inlet is enlarged, the temperature of the mixed water is increased along with the temperature of the mixed water, when the water mixing valve is used in cold winter, the temperature of the hot water is affected by the weather temperature and is lower than the normal weather, at the moment, the temperature of the mixed water can still meet the actual requirement by increasing the water inlet flow of the hot water, in the actual use process, the outlet temperature of the water outlet joint can be accurately adjusted through the temperature adjusting valve rod 18, the outlet temperature will not exceed 49 deg.C even when the hot water reaches the maximum temperature, and the maximum flow can be obtained.
The sealing step 7 is wide at the top and narrow at the bottom, the lower surface of the water stop gasket 12 is provided with a flow guide part 45 sleeved outside the sealing head 10, the flow guide part 45 is wide at the top and narrow at the bottom, a flow increasing channel 46 is formed between the step surface of the sealing step 7 and the outer wall of the flow guide part 45, so the flow increasing channel 46 is inclined, the upper end port of the flow increasing channel 46 is directly opposite to and communicated with the hot water hole 5, no obstacle exists in the middle, once the water stop gasket 12 moves upwards and is not attached to the sealing step 7, hot water in the hot water hole 5 can quickly enter the water mixing cavity through the flow increasing channel 46, as the flow guide part 45 is wide at the bottom, the outer wall of the flow guide part 45 can not cover the inner end port of the hot water hole 5, thereby the flow of the hot water entering the flow increasing channel 46 is effectively ensured, and the width of the flow increasing channel between the step surface of the sealing step 7 and the outer wall of the flow guide part 45 is maximum under the condition that the sealing step 7 is wide at the top and narrow at the bottom, the water mixing device can enter hot water with larger flow, so that the water inlet flow of the hot water can be effectively increased under the condition of not changing the outlet water temperature and the high-temperature cutting-off effect, and the condition that the temperature after water mixing cannot reach the actual required temperature due to the fact that the hot water flow cannot be automatically increased when the cold water flow is increased is avoided.
The outer wall of the flow guiding part 45 is provided with a plurality of large arc-shaped protrusions 47 in an annular shape from top to bottom, and the large arc-shaped protrusions 47 can form a plurality of barriers in the flow increasing channel 46 and are distributed uniformly, so that the flow of hot water flowing into the water mixing cavity 4 through the flow increasing channel 46 is reduced to a certain extent.
The middle part of the outer wall of the flow guide part 45 is provided with a plurality of small annular arc-shaped protrusions 48, the small arc-shaped protrusions 48 can also form a plurality of barriers which are uniformly distributed, the small arc-shaped protrusions 48 are more densely distributed, and the radian of the small arc-shaped protrusions 48 is smaller than that of the large arc-shaped protrusions 47, so that the resistance formed by the small arc-shaped protrusions 48 is far greater than that formed by the large arc-shaped protrusions 47, the flow of hot water can be further blocked, the flow of the hot water flowing into the water mixing cavity 4 through the flow increasing channel 46 is further reduced, therefore, the water stop gaskets 12 with different structures are selected, different water inflow rates of the hot water can be realized, the automatic regulation of the hot water flow is realized, and the automatic regulation of different cold water inflow rates is adapted.
In order to further improve the smoothness and flow rate of hot water flow, an annular auxiliary concave surface 49 is arranged on the outer wall of the upper part of the flow guide part 45, the bending direction of the auxiliary concave surface 49 is opposite to that of the outer wall of the guide part, meanwhile, an annular transition concave surface 50 is arranged on the adjacent large arc-shaped bulge 47, and the radian of the transition concave surface 50 is smaller than that of the auxiliary concave surface 49.
Claims (10)
1. The utility model provides a high temperature automatic cutout mixes water valve, includes the valve body, locates the left hot water joint of valve body lower surface and locates the cold water joint on valve body lower surface right side, locates the play water joint of valve body middle part front side, is equipped with in the valve body middle part and mixes the water cavity that link up mutually with a water joint, and the hot water joint link up mutually with mixing the water cavity through the hot-water hole, and the cold water joint link up its characterized in that mutually with mixing the water cavity through the cold-water hole: the hot water hole is lower than the cold water hole; the lower part of the water mixing cavity is provided with an annular sealing step which is lower than the hot water hole; the upper part of the water mixing cavity is provided with a temperature adjusting mechanism matched with the water mixing cavity; a piston core is arranged in the water mixing cavity, the peripheral surface of the piston core is attached to the inner wall of the water mixing cavity, and the piston core is positioned under the temperature adjusting mechanism; a water mixing groove is formed in the center of the upper surface of the piston core; a sealing head is arranged at the center of the lower surface of the piston core; the peripheral surface of the sealing head is provided with an annular sealing groove; a water-stopping gasket matched with the sealing groove is arranged in the sealing groove, and the outer edge of the water-stopping gasket protrudes outwards out of the sealing groove; the water-stopping gasket is positioned right above the sealing step, and the outer diameter of the water-stopping gasket is larger than the inner diameter of the sealing step; the center of the lower surface of the sealing head is provided with a mounting hole communicated with the water mixing tank; a cutting mechanism matched with the temperature regulating mechanism is arranged in the mounting hole; the outer edge of the lower surface of the sealing head is provided with a plurality of water through holes which are uniformly distributed in the circumferential direction, and the water through holes are communicated with the water mixing tank.
2. The high-temperature automatic cut-off water mixing valve according to claim 1, wherein: the temperature adjusting mechanism comprises a middle screw hole arranged on the upper surface of the middle part of the valve body, and the middle screw hole is communicated with the water mixing cavity; the middle screw hole is in threaded connection with a valve cover matched with the middle screw hole; the upper surface of the center of the valve cover is provided with a valve rod hole communicated with the water mixing cavity; a temperature regulating valve rod matched with the valve rod is screwed in the valve rod hole; the upper end of the temperature regulating valve rod penetrates out of the valve rod hole upwards and is provided with a rotating head; the center of the lower surface of the temperature regulating valve rod is provided with a temperature regulating hole; the orifice at the lower end of the temperature regulating hole is screwed with a straight guide screw; a guide hole is formed in the center of the linear guide screw; a push plate attached to the upper surface of the linear guide screw is arranged in the temperature adjusting hole; the center of the lower surface of the push plate is provided with a guide post matched with the guide hole; a positioning column is arranged in the center of the upper surface of the push plate; an upper spring sleeved outside the positioning column is arranged between the bottom of the temperature adjusting hole and the upper surface of the push plate.
3. The high-temperature automatic cut-off water mixing valve according to claim 2, wherein: a straight groove is formed in the middle of the lower surface of the straight guide screw.
4. The high-temperature automatic cut-off water mixing valve according to claim 2, wherein: the cutting mechanism comprises a thermosensitive element, and the thermosensitive element consists of a limiting part, a positioning part arranged in the center of the lower surface of the limiting part and an upper top part arranged in the center of the upper surface of the limiting part; the upper surface of the limiting part is attached to the lower surface of the sealing head, and the upper top part of the limiting part is fixed in the mounting hole; the upper end of the upper top part penetrates out of the mounting hole upwards and is provided with a mandril; the upper end of the ejector rod is pressed against the center of the lower end face of the guide post; the bottom of the water mixing cavity is provided with a positioning head coaxial with the positioning part; and a lower spring sleeved outside the positioning head and the positioning part is arranged between the lower surface of the limiting part and the bottom of the water mixing cavity.
5. The high-temperature automatic cut-off water mixing valve according to claim 4, wherein: the outer edge of the lower surface of the sealing head is provided with a conical surface which is wide at the top and narrow at the bottom, and the orifice at the lower end of the limber hole is positioned on the conical surface.
6. The high-temperature automatic cut-off water mixing valve according to claim 1, wherein: the limber hole is communicated with the sealing groove through a suction port.
7. The high-temperature automatic cut-off water mixing valve according to claim 1, wherein: a hot water cavity communicated with a hot water joint is arranged in the left part of the valve body, and the hot water joint is communicated with a hot water hole through the hot water cavity; a cold water cavity communicated with a cold water joint is arranged in the right part of the valve body, and the cold water joint is communicated with the cold water hole through the cold water cavity; the upper surface of the left part of the valve body is provided with a left screw hole communicated with the hot water cavity; the left screw hole is in threaded connection with a left plug; the lower part of the hot water cavity is provided with an annular left limiting step; a left filter screen cylinder matched with the hot water cavity is arranged between the left limiting step and the left plug, and the port at the outer end of the hot water hole is covered by the left filter screen cylinder; the upper surface of the right part of the valve body is provided with a right screw hole communicated with the cold water cavity; the right screw hole is in threaded connection with a right plug; the lower part of the cold water cavity is provided with an annular right limiting step; a right filter screen cylinder matched with the cold water cavity is arranged between the right limiting step and the right plug, and the right filter screen cylinder covers the orifice at the outer end of the cold water hole; and the hot water hole and the cold water hole are both provided with a check valve core.
8. The high-temperature automatic cut-off water mixing valve according to claim 1, wherein: the sealing step is wide at the upper part and narrow at the lower part; the lower surface of the water stop gasket is provided with a flow guide part sleeved outside the sealing head, and the flow guide part is wide at the upper part and narrow at the lower part; and a flow increasing channel is formed between the step surface of the sealing step and the outer wall of the flow guide part.
9. The high-temperature automatic cut-off water mixing valve according to claim 8, wherein: the outer wall of the flow guiding part is provided with a plurality of large annular arc-shaped bulges from top to bottom.
10. The high-temperature automatic cut-off water mixing valve according to claim 9, wherein: the middle part of the outer wall of the flow guide part is provided with a plurality of small annular arc-shaped protrusions, and the radian of the small arc-shaped protrusions is smaller than that of the large arc-shaped protrusions.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640787.2A CN114811099B (en) | 2022-06-08 | 2022-06-08 | High-temperature automatic cutting-off water mixing valve |
| PCT/CN2022/134952 WO2023236461A1 (en) | 2022-06-08 | 2022-11-29 | Water mixing valve for automatically cutting off at high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640787.2A CN114811099B (en) | 2022-06-08 | 2022-06-08 | High-temperature automatic cutting-off water mixing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114811099A true CN114811099A (en) | 2022-07-29 |
| CN114811099B CN114811099B (en) | 2024-07-16 |
Family
ID=82521197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210640787.2A Active CN114811099B (en) | 2022-06-08 | 2022-06-08 | High-temperature automatic cutting-off water mixing valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114811099B (en) |
| WO (1) | WO2023236461A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236461A1 (en) * | 2022-06-08 | 2023-12-14 | 浙江万得凯流体设备科技股份有限公司 | Water mixing valve for automatically cutting off at high temperature |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100163118A1 (en) * | 2008-12-25 | 2010-07-01 | Qingjun Xie | Constant temperature and balanced pressure valve core with single handle |
| CN101943275A (en) * | 2010-09-08 | 2011-01-12 | 常州市华鹏机械电器制造有限公司 | Automatic constant-temperature water mixing valve |
| CN210830710U (en) * | 2019-10-10 | 2020-06-23 | 林仙明 | Side surface water inlet thermostatic valve core with switch function |
| CN212338283U (en) * | 2020-06-04 | 2021-01-12 | 浙江万得凯流体设备科技股份有限公司 | Constant temperature water mixing device |
| CN114458801A (en) * | 2022-03-10 | 2022-05-10 | 玉环信得利阀业股份有限公司 | Thermostatic valve core capable of balancing pressure and preventing countercurrent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811099B (en) * | 2022-06-08 | 2024-07-16 | 浙江万得凯流体设备科技股份有限公司 | High-temperature automatic cutting-off water mixing valve |
-
2022
- 2022-06-08 CN CN202210640787.2A patent/CN114811099B/en active Active
- 2022-11-29 WO PCT/CN2022/134952 patent/WO2023236461A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100163118A1 (en) * | 2008-12-25 | 2010-07-01 | Qingjun Xie | Constant temperature and balanced pressure valve core with single handle |
| CN101943275A (en) * | 2010-09-08 | 2011-01-12 | 常州市华鹏机械电器制造有限公司 | Automatic constant-temperature water mixing valve |
| CN210830710U (en) * | 2019-10-10 | 2020-06-23 | 林仙明 | Side surface water inlet thermostatic valve core with switch function |
| CN212338283U (en) * | 2020-06-04 | 2021-01-12 | 浙江万得凯流体设备科技股份有限公司 | Constant temperature water mixing device |
| CN114458801A (en) * | 2022-03-10 | 2022-05-10 | 玉环信得利阀业股份有限公司 | Thermostatic valve core capable of balancing pressure and preventing countercurrent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236461A1 (en) * | 2022-06-08 | 2023-12-14 | 浙江万得凯流体设备科技股份有限公司 | Water mixing valve for automatically cutting off at high temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023236461A1 (en) | 2023-12-14 |
| CN114811099B (en) | 2024-07-16 |
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