CN109404560B - Thermostatic valve core for sensing temperature and discharging water after cold water and hot water are mixed - Google Patents
Thermostatic valve core for sensing temperature and discharging water after cold water and hot water are mixed Download PDFInfo
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- CN109404560B CN109404560B CN201810075209.2A CN201810075209A CN109404560B CN 109404560 B CN109404560 B CN 109404560B CN 201810075209 A CN201810075209 A CN 201810075209A CN 109404560 B CN109404560 B CN 109404560B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 405
- 238000007599 discharging Methods 0.000 title abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 239000012188 paraffin wax Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 73
- 230000007704 transition Effects 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
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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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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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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- 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
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
- F16K31/605—Handles for single handle mixing 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention provides a constant-temperature valve core for sensing temperature and outputting water after mixing cold water and hot water, and relates to the field of constant-temperature water heating equipment. Comprises a valve body, a temperature adjusting handle, a follow-up sleeve, a thermosensitive element, a sliding cylinder and a reset spring are arranged in the valve body from top to bottom; the peripheral wall of the valve body is provided with a mixed water outlet, a cold water inlet and a hot water inlet from top to bottom; the thermosensitive element is a paraffin constant temperature component; the valve body is internally provided with a water mixing cavity which is respectively communicated with a cold water inlet and a hot water inlet through a sliding cylinder, the water mixing cavity is also communicated with a mixed water outlet, the thermosensitive element is positioned above the water mixing cavity, and cold water and hot water enter the water mixing cavity to be mixed and then are subjected to temperature sensing and water discharging through the thermosensitive element. According to the invention, the heat-sensitive element is arranged above the sliding cylinder, and the water inlet and mixing space is formed below the heat-sensitive element, so that cold water and hot water can be mixed first and then are subjected to temperature sensing and water outlet, the temperature sensing of the heat-sensitive element is closer to the actual water outlet temperature, and the temperature control effect and the service performance of the constant temperature valve core are effectively improved.
Description
Technical Field
The invention relates to the field of constant-temperature water heating equipment, in particular to a constant-temperature valve core for sensing temperature and outputting water after cold water and hot water are mixed.
Background
The constant temperature valve core is used as a temperature control component and is commonly applied to a water tap. A thermostatic valve cartridge is a device that automatically controls the flow or variation of hot and cold water introduced therein in order to maintain a constant temperature for the initial setting of the mixed water. The constant temperature valve core mainly comprises a valve body, an adjusting rod, a follow-up sleeve, a thermosensitive element, a piston, a reset spring and the like, wherein the thermosensitive element is matched with the reset spring to enable the piston to move back and forth along the axis, so that the water inlet calibers of hot water and cold water are changed, and the water inlet proportion of cold water and hot water is changed. The thermosensitive element applied to the constant temperature valve core can be a paraffin constant temperature component or a shape memory alloy spring, wherein the shape memory alloy spring is a thermosensitive element newly introduced in recent years, has better response sensitivity at the temperature of about 40 ℃, but has obvious defects of easy thermal expansion, and is not sensitive enough to retract, so that the actual temperature control effect is limited. Meanwhile, because the development time is short, the production process and the product quality are not mature, a high degree of technology and process are needed for large-scale application of the spring to precise parts, products produced by different batches and factories have certain differences, the effect is not satisfactory when the memory alloy spring is actually used, and the spring is not effectively popularized yet. The most commonly used thermosensitive element is also a paraffin constant temperature component, which is commonly used due to mature production process, stable product quality and lower price.
At present, a thermostatic valve core based on a paraffin thermostatic component is provided with a mixed water outlet at the bottom of the valve core, mixed water is discharged from the bottom, a hot water inlet is generally arranged between a cold water inlet and the mixed water outlet, a temperature sensing bulb of the paraffin thermostatic component faces the mixed water outlet, and a push rod part is abutted against a follow-up sleeve. For example, the patent in China provides a constant temperature valve core, the application number is CN 201620355178.2, which is of a similar structure, wherein a piston is fixed with a heat-sensitive element and is positioned above a temperature sensing rod of the heat-sensitive element between the separated end faces of a cold water inlet and a hot water inlet. When cold water and hot water enter the constant temperature valve core, the cold water enters from the upper part of the piston and flows downwards, and the hot water enters from the lower part of the piston to directly impact the temperature sensing rod and simultaneously is combined with the cold water. The direct impact of hot water can influence the performance of heat sensitive element, and cold and hot water mixes around the temperature sensing stick, causes the inhomogeneous water that mixes easily, and the temperature fluctuation that the temperature sensing stick sensed is great, and the temperature sensing stick can not in time stable sense the temperature of mixing water, and paraffin constant temperature assembly temperature sensing is unreal enough, and the water temperature and the temperature deviation that sense are great, cause the actual accuse temperature effect of constant temperature case limited, and the performance is unstable.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide the constant-temperature valve core which can mix cold water and hot water before being sensed to obtain better temperature control effect and service performance.
In order to solve the technical problems, the invention provides a thermostatic valve core for sensing temperature and outputting water after mixing cold water and hot water, which comprises a valve body, wherein a temperature adjusting handle, a follow-up sleeve, a thermosensitive element and a sliding cylinder are arranged in the valve body from top to bottom; the peripheral wall of the valve body is provided with a mixed water outlet, a cold water inlet and a hot water inlet from top to bottom; the heat sensitive element is a paraffin constant temperature component and comprises a temperature sensing rod and a push rod part, wherein the lower end of the temperature sensing rod is propped against the sliding cylinder, the upper end of the push rod part is propped against the follow-up sleeve, and the mixed water outlet is opposite to the temperature sensing rod; the valve body is internally provided with a water mixing cavity which is respectively communicated with a cold water inlet and a hot water inlet through a sliding cylinder, the water mixing cavity is also communicated with a mixed water outlet, the thermosensitive element is positioned above the water mixing cavity, and cold water and hot water enter the water mixing cavity to be mixed and then are subjected to temperature sensing and water discharging through the thermosensitive element.
Further, the valve body comprises a main valve body and a base, wherein the main valve body comprises a first containing cavity, a second containing cavity, a third containing cavity and a fourth containing cavity from top to bottom, the follow-up sleeve is contained in the first containing cavity, the thermosensitive element is contained in the second containing cavity, the sliding cylinder can move up and down in the third containing cavity, and the base is fixedly connected with the fourth containing cavity; the inner diameter of the third containing cavity is smaller than the inner diameters of the second containing cavity and the fourth containing cavity, and a sliding sleeve supporting seat is formed between the cavity peripheral wall of the third containing cavity and the main valve body peripheral wall; the mixed water outlet is arranged on the valve body of the second cavity section; the cold water inlet is arranged on the valve body of the third containing cavity section, and the hot water inlet is arranged on the base.
Further, the middle part of the lower end of the sliding sleeve supporting seat extends upwards to form an annular cavity, namely a water mixing cavity, and the top of the water mixing cavity is positioned below the cold water inlet; a plurality of mixed water outlet channels are arranged between the water mixing cavity and the upper end surface of the sliding sleeve supporting seat at intervals, and the mixed water outlet channels and the cold water inlet are arranged in a staggered manner.
Further, the sliding cylinder is in a ring column shape, and a sliding cylinder cold inlet, a sliding cylinder cold outlet, a sliding cylinder hot outlet and a sliding cylinder hot inlet are sequentially arranged on the peripheral wall of the sliding cylinder from top to bottom, and correspond to the cold water inlet and the hot water inlet respectively; the inner cavity of the sliding cylinder is divided into a sliding cylinder cold water transition cavity and a sliding cylinder hot water transition cavity by a water isolation structure, the sliding cylinder cold inlet and the sliding cylinder cold outlet are communicated with the sliding cylinder cold water transition cavity, and the sliding cylinder hot outlet and the sliding cylinder hot inlet are communicated with the sliding cylinder hot water transition cavity.
Further, a flow-limiting convex ring is formed between the sliding cylinder cold outlet and the sliding cylinder hot outlet of the sliding cylinder peripheral wall in a radial outward extending way, the flow-limiting convex ring is positioned below the sliding sleeve supporting seat, and the outer diameter of the flow-limiting convex ring is larger than the inner diameter of the third containing cavity and smaller than the inner diameter of the fourth containing cavity; the gap space between the upper end face of the current-limiting ring and the lower end face of the sliding sleeve supporting seat is a cold water inlet gap, and the gap space between the lower end face of the current-limiting ring and the base is a hot water inlet gap.
Further, a first sliding cylinder sealing groove, a second sliding cylinder sealing groove, a third sliding cylinder sealing groove and a fourth sliding cylinder sealing groove which are arranged on the annular wall are respectively arranged above the sliding cylinder cold inlet, between the sliding cylinder cold inlet and the sliding cylinder cold outlet, between the sliding cylinder hot outlet and the sliding cylinder hot inlet and below the sliding cylinder hot inlet, and a fifth sealing ring, a sixth sealing ring, a seventh sealing ring and an eighth sealing ring are sequentially arranged. Further, the upper end of the sliding cylinder is sealed, and a plurality of limit lugs are circumferentially arranged at intervals on the upper end surface of the sliding cylinder.
Further, the water isolation structure is a slow flow seat accommodated in the inner cavity of the sliding cylinder, the slow flow seat is in a ring column shape, a water isolation plate is arranged in the middle of the inner cavity of the slow flow seat to isolate the interior of the slow flow seat into a cold water slow flow cavity and a hot water slow flow cavity, and meanwhile, the upper part, the middle part and the lower part of the outer wall of the slow flow seat are respectively provided with a first slow flow seat sealing groove, a second slow flow seat sealing groove and a third slow flow seat sealing groove which are outwards protruded and matched with the inner cavity of the sliding cylinder; at least two cold water through holes are formed in the wall of the cold water slow flow cavity, and at least two hot water through holes are formed in the wall of the hot water slow flow cavity.
Further, the lower end of the sliding cylinder is opened, and the lower end of the sliding cylinder is sealed by connecting a sliding cylinder plug; the sliding cylinder plug is columnar, the bottom end of the inner cavity is closed, the bottom of the sliding cylinder plug is provided with a sliding cylinder plug bottom table, and the outer diameter of the sliding cylinder plug bottom table corresponds to the inner diameter of the base; the lower part of the sliding cylinder plug bottom table is also provided with a mounting lug, and the outer wall of the mounting lug is provided with a clamping notch.
Further, a first sealing groove of the valve body is arranged above the mixed water outlet on the outer wall of the main valve body, a first sealing ring is arranged in the first sealing groove, a second sealing groove of the valve body is arranged between the cold water inlet and the mixed water outlet, a second sealing ring is arranged in the second sealing groove, a third sealing groove of the valve body and a fourth sealing groove of the valve body are respectively arranged above and below the hot water inlet of the base, and the third sealing ring and the fourth sealing ring are correspondingly and respectively arranged.
The invention is to place the heat-sensitive element above the slide cylinder, form the water inflow, mixing space under the heat-sensitive element, provide the basis for the first mixing of cold, hot water and then temperature sensing.
The mixed water outlet corresponds to the temperature sensing rod of the thermosensitive element, the cold water inlet and the hot water inlet are arranged below the mixed water outlet, namely, are arranged below the thermosensitive element, and cold water and hot water are mixed firstly after entering the valve body and then contact with the thermosensitive element in a mixed water mode, so that the aim of mixing firstly and then sensing water is fulfilled. Meanwhile, a water mixing cavity is arranged in the valve body, cold water and hot water are respectively guided into the water mixing cavity through the sliding cylinder, so that a large mixing space is provided for mixing the cold water and the hot water, the cold water and the hot water are fully mixed, and are led out through a mixed water outlet channel in a shunting way, so that the temperature sensing of the thermosensitive element is more uniform, the phenomenon of local temperature sensing does not exist, meanwhile, the temperature sensing water flow is the mixed water flowing out of the constant-temperature valve core, the temperature sensing water flow temperature of the thermosensitive element is the temperature of the mixed water, the temperature sensing temperature is closer to the real water outlet temperature, the sliding cylinder is more accurately promoted to move up and down to adjust the water inlet flow ratio of the cold water and the hot water, and the service performance of the constant-temperature valve core is obviously improved compared with the prior art. Meanwhile, cold water and hot water can not directly impact the thermal element, the influence on the performance of the thermal element is greatly reduced, the temperature sensing environment of the thermal element is milder and more stable, and the service life of the thermal element in the constant temperature valve core is longer.
The water mixing cavity, the mixed water outlet channel and the cold water inlet are arranged in a staggered and separated way, the characteristic of larger wall thickness of the valve body of the third cavity section is fully utilized, the structural design is very ingenious, and the structural space is efficiently utilized.
The sliding cylinder has the functions of leading cold water and hot water to enter the water mixing cavity respectively, forming a cold water inlet gap and a hot water inlet gap, and changing the gap sizes of the cold water inlet gap and the hot water inlet gap through the up-and-down movement of the sliding cylinder so as to adjust the cold water inlet flow rate and the hot water inlet flow rate.
The inner sleeve of the sliding cylinder is provided with a slow flow seat, the slow flow seat has the function of stabilizing water pressure, and the originally relatively turbulent water flows out of the cold/hot outlet of the sliding cylinder in a relatively gentle mode, so that the direct impact of cold water and hot water on the cold water inlet gap and the hot water inlet gap is effectively relieved, and the phenomenon that the water flow directly and forcefully impacts the cold water inlet gap and the hot water inlet gap to cause the use limit of a spring to be exceeded and cause the flow limiting to be out of control is avoided. After the slow flow seat is added, the reset spring and the buffer spring in the thermosensitive element-follow-up sleeve are matched, so that the cold water inlet gap and the hot water inlet gap can be effectively controlled to have a proper gap state, and the constant-temperature valve core can effectively limit current and has more reliability in temperature adjustment.
In a word, the constant temperature valve core provided by the invention changes the installation mode of each accessory by improving the valve body structure, the thermosensitive element is arranged above the sliding cylinder, and the water inlet and mixing space is formed below the thermosensitive element, so that cold water and hot water can be mixed first and then are subjected to temperature sensing and water outlet, the temperature sensing of the thermosensitive element is closer to the actual water outlet temperature, and the temperature control effect and the service performance of the constant temperature valve core are effectively improved.
Drawings
FIG. 1 is a general block diagram of a thermostatic cartridge provided by an embodiment of the present invention.
FIG. 2 is a split block diagram of a thermostatic cartridge provided by an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a thermostatic cartridge provided by an embodiment of the present invention.
Fig. 4 is a partial enlarged view of fig. 3.
Fig. 5 is a cross-sectional view of a main valve body of a thermostatic cartridge provided by an embodiment of the present invention.
FIG. 6 is another angular cross-sectional view of a main valve body of a thermostatic cartridge provided by an embodiment of the present invention.
Fig. 7 is a cross-sectional view of a spool of a thermostatic cartridge provided by an embodiment of the present invention.
Fig. 8 is a perspective view of a spool of a thermostatic cartridge provided by an embodiment of the present invention.
Fig. 9 is a cross-sectional view of a slow flow seat of a thermostatic valve core provided by an embodiment of the invention.
Fig. 10 is a perspective view of a flow retarding seat of a thermostatic valve cartridge according to an embodiment of the present invention.
FIG. 11 is a cross-sectional view of a base of a thermostatic cartridge provided by an embodiment of the present invention.
FIG. 12 is a cross-sectional view of a spool plug of a thermostatic cartridge provided by an embodiment of the present invention.
In the figure, A1 is a cold water inlet; a2, a sliding cylinder cold inlet; a3, a sliding cylinder cold outlet; a4, a cold water inlet gap; b1, a hot water inlet; b2, a sliding cylinder hot inlet; b3, a sliding cylinder heat outlet; b4, a hot water inlet gap; c1, a mixed water outlet; c2, a water mixing cavity; c3, a mixed water outlet channel; 1. a valve body; 101. a valve body first seal groove; 102. a second seal groove of the valve body; 103. a third seal groove of the valve body; 104. a fourth seal groove of the valve body; 1-1, a main valve body; 11. a first cavity; 12. a second cavity; 13. a third cavity; 14. a fourth cavity; 16. a sliding sleeve supporting seat; 17. a limit step; 1-2, a base; 15. a fifth cavity; 2. a temperature regulating rod; 3. a follower sleeve; 4. a thermosensitive element; 41. a temperature sensing rod; 42. a push rod part; 43. a support ring; 5. a slide cylinder; 51. a sliding cylinder cold water transition cavity; 52. a sliding cylinder hot water transition cavity; 53. the flow limiting ring is convex; 54. a limit bump; 55. a first seal groove of the slide cylinder; 56. a second seal groove of the slide cylinder; 57. a third seal groove of the slide cylinder; 58. a fourth seal groove of the slide cylinder; 6. a slow flow seat; 61. a water-stop plate; 62. a cold water slow flow cavity; 63. a hot water slow flow cavity; 64. a first seal groove of the slow flow seat; 65. the second sealing groove of the slow flow seat; 66. a third seal groove of the slow flow seat; 67. a cold water through hole; 68. a hot water through hole; 7. a return spring; 8. a slide plug; 81. a slide plug base; 82. mounting the protruding blocks; 83. a tap thread; 84. a fifth seal groove of the slide cylinder; 901. a first seal ring; 902. a second seal ring; 903. a third seal ring; 904. a fourth seal ring; 905. a fifth seal ring; 906. a sixth seal ring; 907. a seventh seal ring; 908. an eighth seal ring; 909. a ninth seal ring; 910. a tenth seal ring; 911. an eleventh seal ring; 912. and a twelfth sealing ring.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.
Fig. 1-12 show the structure of the thermostatic valve core and the internal fittings in this embodiment.
The embodiment provides a thermostatic valve core for sensing temperature and outputting water after cold and hot water are mixed, which comprises a valve body 1, wherein a temperature regulating handle 2, a follow-up sleeve 3, a thermosensitive element 4 and a sliding cylinder 5 are arranged in the valve body 1 from top to bottom, and the thermostatic valve core also comprises a reset spring 7 which is propped against the bottom of the sliding cylinder 5; the peripheral wall of the valve body 1 is provided with a mixed water outlet C1, a cold water inlet A1 and a hot water inlet B1 from top to bottom; the heat sensitive element 4 is a paraffin constant temperature component and comprises a temperature sensing rod 41 and a push rod part 42, wherein the lower end of the temperature sensing rod 41 is propped against the sliding cylinder 5, the upper end of the push rod part 42 is propped against the follow-up sleeve 3, and the mixed water outlet C1 is opposite to the temperature sensing rod 41; the valve body 1 is internally provided with a water mixing cavity C2, the water mixing cavity C2 is respectively communicated with a cold water inlet A1 and a hot water inlet B1 through a sliding cylinder 5, the water mixing cavity C2 is also communicated with a mixed water outlet C1, the heat sensitive element 4 is positioned above the water mixing cavity C2, and cold water and hot water enter the water mixing cavity C2 to be mixed and then are subjected to temperature sensing by the heat sensitive element 4 to obtain water.
The temperature adjusting handle 2 and the follow-up sleeve 3 are common accessories in the industry, and the threaded fit of the temperature adjusting handle 2 and the follow-up sleeve 3 can drive the follow-up sleeve 3 to move up and down under the condition of in-situ rotation, and the temperature adjusting handle 2 is not required to be pushed and pulled up and down to change the positions of the thermosensitive element 4 and the sliding cylinder 5, so that convenience is provided for the temperature adjusting use of the follow-up constant temperature valve core. The reset spring 7 is abutted against the cavity bottom of the constant temperature valve core cavity in the faucet. The return spring 7 and the thermosensitive element 4 cooperate to control the sliding cylinder 5 to move back and forth along the axis in the valve body 1.
The valve body 1 in this embodiment is assembled by a main valve body 1-1 and a base 1-2.
The main valve body 1-1 comprises a first containing cavity 11, a second containing cavity 12, a third containing cavity 13 and a fourth containing cavity 14 from top to bottom, wherein the inner diameter of the third containing cavity 13 is smaller than the inner diameters of the second containing cavity 12 and the fourth containing cavity 14, and a sliding sleeve supporting seat 16 protruding inwards in the radial direction is formed between the cavity peripheral wall of the third containing cavity 13 and the main valve body 1-1 peripheral wall.
The upper end of the first accommodating cavity 11 is opened, the first accommodating cavity 11 is used for accommodating the temperature adjusting handle 2 and the follow-up sleeve 3, the handle part of the temperature adjusting handle 2 penetrates out of the first accommodating cavity 11 from bottom to top to protrude out of the main valve body 1-1 and is clamped and fixed by a clamp spring, the follow-up sleeve 3 is in threaded connection with the temperature adjusting handle 2, and the handle of the temperature adjusting handle 2 is rotated to drive the follow-up sleeve 3 to move up and down, so that the positions of the thermosensitive element 4 and the sliding cylinder 5 are affected.
The second accommodating cavity 12 is T-shaped, has a small upper part and a large lower part and is used for accommodating the thermosensitive element 4, the upper cavity and the first accommodating cavity 11 are approximately the same diameter, and the whole shape and the size of the second accommodating cavity correspond to those of the thermosensitive element 4; the mixed water outlet C1 is arranged on the peripheral wall of the valve body of the second containing cavity 12 section and is communicated with the valve body. The second containing cavity 12 is also equivalent to a temperature sensing water outlet cavity, namely, the mixed water is discharged when the mixed water reaches the second containing cavity 12, so that the mixed water is ensured to be sensed, and the temperature sensing time of the heat sensitive element 4 is closer to the real water outlet temperature.
And the third and fourth cavities are straight-through. The third cavity 13 is in a diameter-reducing state relative to the lower part of the second cavity 12 and the fourth cavity 14, so that the solid part between the cavity wall of the third cavity 13 and the outer wall of the valve body is thicker, and space is provided for processing the water mixing cavity C2 and the water mixing outlet channel C3, and the structural design is reasonable and ingenious. The sliding cylinder 5 moves up and down in the third accommodating cavity 13, and the third accommodating cavity 13 or the sliding sleeve supporting seat 16 provides a guiding supporting function for the sliding cylinder 5, so that the stability of the sliding cylinder 5 during moving is improved. The cold water inlet A1 is arranged on the peripheral wall of the valve body of the third containing cavity 13 section and is communicated with the valve body. The cold water inlet A1 is a through hole penetrating through the peripheral wall of the valve body transversely. The wall of the fourth chamber 14 is provided with an internal thread for threaded connection with the base 1-2.
As shown in fig. 5 and 6, an annular cavity, namely a water mixing cavity C2, is formed by extending upwards in the middle of the lower end of the sliding sleeve support seat 16, and the top end of the water mixing cavity C2 is positioned below the cold water inlet A1 and is not communicated with the cold water inlet A1. A plurality of upward straight-through mixed water outlet channels C3 are arranged between the mixed water cavity C2 and the upper end surface of the sliding sleeve supporting seat 16 at intervals, and the mixed water outlet channels C3 and the cold water inlet A1 are arranged in a staggered mode and are not communicated in a crossed mode. The mixed water outlet channel C3 is communicated with the second containing cavity 12, and the lower part is communicated with the mixed water cavity C2. The mixed water cavity C2, the mixed water outlet channel C3 and the cold water inlet A1 are arranged in a staggered and separated way, the characteristic that the wall thickness of the valve body of the section 13 of the third containing cavity is large is fully utilized, the structural design is very ingenious, and the space utilization is better.
A first sealing groove 101 of the valve body is arranged above the mixed water outlet C1 on the outer wall of the main valve body 1-1, a first sealing ring 901 is arranged in the first sealing groove, a second sealing groove 102 of the valve body is arranged between the cold water inlet A1 and the mixed water outlet C1, and a second sealing ring 902 is arranged in the second sealing groove.
The inside of the base 1-2 is provided with a through cavity with the same diameter as the upper and lower parts, which is marked as a fifth cavity 15, and the outer wall of the base 1-2 is provided with external threads which are inserted into the fourth cavity 14 for screw connection and assembly. The circumference wall of the base 1-2 is provided with a hot water inlet B1, and a valve body third sealing groove 103 and a valve body fourth sealing groove 104 are respectively arranged above and below the hot water inlet B1, and a third sealing ring 903 and a fourth sealing ring 904 are correspondingly and respectively arranged. A groove is arranged at the cavity mouth of the upper end of the base 1-2 to form a limit step 17.
In this embodiment, the main valve body is integrally designed, and the selected thermal element is sized to pass through the third cavity from bottom to top, which may be a split type structure.
In this embodiment, the thermal element 4 is a paraffin constant temperature component, and includes a temperature sensing rod 41 and a push rod portion 42, wherein the bottom of the temperature sensing rod 41 abuts against the upper end of the sliding cylinder 5, and the upper end of the push rod portion 42 abuts against the follower sleeve 3. The supporting ring 43 is sleeved on the ejector rod part 42 of the thermosensitive element 4, the outer diameter of the supporting ring corresponds to the inner diameter of the upper cavity of the second containing cavity 12, the supporting ring 43 plays a role in supporting the thermosensitive element 4, the thermosensitive element 4 is enabled to be in transitional contact with the inner wall of the valve body, and the stability of the thermosensitive element 4 during installation and up-down movement is improved.
The sliding cylinder 5 is in a ring column shape, a cavity with the same diameter is arranged in the sliding cylinder, the upper end of the sliding cylinder is closed, the lower end of the sliding cylinder is opened, a sliding cylinder cold inlet A2, a sliding cylinder cold outlet A3, a sliding cylinder hot outlet B3 and a sliding cylinder hot inlet B2 are sequentially arranged on the peripheral wall of the sliding cylinder 5 from top to bottom, and the sliding cylinder cold inlet A2 and the sliding cylinder hot inlet B2 correspond to the cold water inlet A1 and the hot water inlet B1 respectively. A water-proof structure is also arranged in the sliding cylinder 5 to divide the inner cavity of the sliding cylinder 5 into a sliding cylinder cold water transition cavity 51 and a sliding cylinder hot water transition cavity 52, a sliding cylinder cold inlet A2 and a sliding cylinder cold outlet A3 are communicated with the sliding cylinder cold water transition cavity 51, and a sliding cylinder hot outlet B3 and a sliding cylinder hot inlet B2 are communicated with the sliding cylinder hot water transition cavity 52.
A flow-limiting convex ring 53 is formed between the sliding cylinder cold outlet A3 and the sliding cylinder hot outlet B3 of the peripheral wall of the sliding cylinder 5 in a radial outward extending way, the flow-limiting convex ring 53 is positioned below the sliding sleeve supporting seat 16, and the outer diameter of the flow-limiting convex ring 53 is larger than the inner diameter of the third accommodating cavity 13 but smaller than the inner diameter of the fourth accommodating cavity 14. So that an effective flow-limiting gap can be formed, and a space is reserved for cold water and hot water to flow into the water mixing cavity C2. The gap space between the upper end surface of the current-limiting ring protrusion 53 and the lower end surface of the sliding sleeve supporting seat 16 is a cold water inlet gap A4, and the gap space between the lower end surface of the current-limiting ring protrusion 53 and the limiting step 17 is a hot water inlet gap B4.
The sliding cylinder 5 has the functions of guiding water to enable cold water and hot water to enter the water mixing cavity C2 respectively, forming a cold water inlet gap A4 and a hot water inlet gap B4, and changing the gap sizes of the cold water inlet gap A4 and the hot water inlet gap B4 through up-down movement of the sliding cylinder 5 so as to adjust the cold water inlet flow rate and the hot water inlet flow rate.
The slide cylinder 5 is accommodated in the third accommodating cavity 13 and the fifth accommodating cavity 15. The inner diameters of the third containing cavity 13 and the fifth containing cavity 15 correspond to the outer diameter of the sliding cylinder 5.
A first seal groove 55, a second seal groove 56, a third seal groove 57 and a fourth seal groove 58 of the sliding barrel are respectively arranged above the sliding barrel cold inlet A2, between the sliding barrel cold inlet A2 and the sliding barrel cold outlet A3, between the sliding barrel hot outlet B3 and the sliding barrel hot inlet B2 and below the sliding barrel hot inlet B2, and a fifth seal ring 905, a sixth seal ring 906, a seventh seal ring 907 and an eighth seal ring 908 are respectively arranged in sequence. The sealing rings are matched to prevent water flow from flowing on the outer wall of the sliding cylinder 5, and water flow is limited to flow from the water inlet and the water outlet.
The upper end surface of the sliding cylinder 5 is also provided with a plurality of limit lugs 54 at intervals, the limit lugs 54 are circumferentially arranged, and the size of the space surrounded by the limit lugs 54 corresponds to the size of the bottom of the temperature sensing rod 41 of the thermal element 4, so that positioning and mounting are provided for the thermal element 4, and the stability of the thermal element in the constant-temperature valve core is improved.
The inner cavity of the sliding cylinder 5 is provided with a slow flow seat 6, the slow flow seat 6 is in a ring column shape, the middle of the inner cavity is provided with a water stop plate 61, the inside of the slow flow seat 6 is isolated into a cold water slow flow cavity 62 and a hot water slow flow cavity 63, and the two ends of the slow flow seat are open, so that the processing is facilitated. Meanwhile, the upper part, the middle part and the lower part of the outer wall of the slow flow seat 6 are respectively provided with a first sealing groove 64 of the slow flow seat, a second sealing groove 65 of the slow flow seat and a third sealing groove 66 of the slow flow seat, and a tenth sealing ring 910, an eleventh sealing ring 911 and a twelfth sealing ring 912 are respectively arranged in the first sealing groove, the middle sealing groove and the lower sealing groove. The outer walls of the slow flow seat 6 between the first slow flow seat sealing groove 64 and the second slow flow seat sealing groove 65 and between the second slow flow seat sealing groove 65 and the third slow flow seat sealing groove 66 are all in a concave state, so that a water flow flowing space of the inner cavity of the sliding cylinder 5 is formed. The tenth and twelfth sealing rings 910 and 912 are installed to ensure that part of the water flows in and out from the cold water through holes 67, rather than flowing to both sides.
The outer diameters of the first seal groove 64, the second seal groove 65 and the third seal groove 66 correspond to the inner diameter of the slide cylinder 5. The first seal groove 64 of the slow flow seat is positioned above the sliding cylinder cold inlet A2, the second seal groove 65 of the slow flow seat is positioned between the sliding cylinder cold outlet A3 and the sliding cylinder hot outlet B3, and the third seal groove 66 of the slow flow seat is positioned below the sliding cylinder hot inlet B2.
Two ends of the slow flow seat 6 are respectively propped against the top of the inner cavity of the sliding cylinder 5 and the upper end face of the sliding cylinder plug 8, and are fixed between the sliding cylinder 5 and the sliding cylinder plug 8.
At least two cold water through holes 67 are formed in the wall of the cold water slow flow cavity 62, at least two through holes are formed, and water flow in the cavity is guaranteed to be in a circulation state and can enter and exit. The cold water through hole 67 is located near the first seal groove 64 of the slow flow seat and is opposite to the slide cylinder cold inlet A2. Similarly, at least two hot water through holes 68 are also formed in the wall of the hot water slow flow chamber 63.
The water-stop plate 61 in the middle of the inner part of the slow flow seat 6, the second sealing groove 65 of the slow flow seat and the eleventh sealing ring 911 are combined to replace the water-stop structure in the middle of the sliding cylinder 5, so that cold water and hot water are not streamed in the sliding cylinder 5.
The cold/hot water flow enters the sliding cylinder cold water transition cavity 51/sliding cylinder hot water transition cavity 52 from the sliding cylinder cold inlet A2/sliding cylinder hot inlet B2 on the sliding cylinder 5, flows around the outer wall of the slow flow seat 6 for pressure relief, meanwhile, part of water enters the cold water slow flow cavity 62/hot water slow flow cavity 63 of the slow flow seat 6 from the cold water through holes 67/hot water through holes 68, and the water flow flows out after flowing around in the cold water slow flow cavity 62/hot water slow flow cavity 63 in a certain direction, so that the effects of effectively relieving pressure and stabilizing the water flow are achieved.
The slow flow seat 6 has the function of stabilizing water pressure, and can flow out of the sliding cylinder cold/hot outlet in a relatively moderate mode, so that the direct impact of cold water and hot water on the cold water inlet gap A4 and the hot water inlet gap B4 is effectively relieved, the direct strong impact of water flow on the cold water inlet gap A4 and the hot water inlet gap B4 is avoided, the use limit of a spring is broken, the water is forced to be extruded into the water mixing cavity C2, and the flow limiting is out of control. After the slow flow seat 6 is added, the reset spring 7 and the buffer spring in the thermosensitive element-follow-up sleeve are matched, so that the cold water inlet gap A4 and the hot water inlet gap B4 can be effectively controlled to have a due gap state, thereby effectively limiting the current, and the temperature regulation of the constant-temperature valve core is more reliable.
The bottom of the sliding cylinder 5 is also provided with a sliding cylinder plug 8, the bottom end of the inner cavity of the sliding cylinder is in a closed state and basically columnar, the bottom of the inner cavity is provided with a sliding cylinder plug base table 81, and the outer diameter of the sliding cylinder plug base table 81 corresponds to the fifth cavity 15. The lower part of the sliding cylinder plug base table 81 is also provided with a mounting lug 82, the outer wall of the sliding cylinder plug base table is provided with a notch, the sliding cylinder plug base table is convenient for a tool to clamp and screw, and meanwhile, the end part of the return spring 7 can be sleeved outside the mounting lug 82 to realize positioning and mounting. The outer wall of the cylinder above the sliding cylinder plug base plate 81 is provided with a cock thread 83 which is inserted into the bottom of the sliding cylinder 5 to be screwed and fixed with the sliding cylinder. The tap screw 83 is spaced from the spool plug base 81, with a space reserved therebetween, i.e., a fifth spool seal groove 84 is formed between the bottom surface of the spool 5 and the spool plug base 81, which houses a ninth seal ring 909.
The invention is to place the heat-sensitive element 4 above the slide tube 5, form the water inflow, mixing space under the heat-sensitive element 4, provide the basis for the first mixing of cold and hot water and then temperature sensing.
According to the invention, the mixed water outlet C1 corresponds to the temperature sensing rod 41 of the thermal element 4, the cold water inlet A1 and the hot water inlet B1 are both arranged below the mixed water outlet C1, namely are arranged below the thermal element 4, and cold water and hot water are mixed firstly after entering the valve body and then contact with the thermal element 4 in the form of mixed water, so that the purposes of mixing firstly and then sensing temperature and water are achieved. Meanwhile, the water mixing cavity C2 is arranged in the valve body, cold water and hot water are respectively guided into the water mixing cavity C2 through the sliding cylinder 5, so that a larger mixing space is provided for mixing the cold water and the hot water, the cold water and the hot water are fully mixed, and then are led out by the mixed water outlet channel C3 in a split manner, so that the temperature sensing of the thermosensitive element 4 is more uniform, the phenomenon of local temperature sensing does not exist, meanwhile, the temperature sensing water flow is mixed water flowing out of the constant-temperature valve core, the temperature sensing water flow temperature of the thermosensitive element 4 is the temperature of the mixed water, the temperature sensing temperature is closer to the real water outlet temperature, the sliding cylinder 5 is more accurately promoted to move up and down to adjust the water inlet flow ratio of the cold water and the hot water, and the service performance of the constant-temperature valve core is obviously improved compared with the prior art.
When the constant temperature valve core is installed, each sealing ring is sleeved on a sealing groove of a corresponding accessory, the temperature regulating handle 2 and the follow-up sleeve 3 are assembled in a screwed mode firstly, then the handle of the temperature regulating handle 2 upwards penetrates through the inner cavity of the main valve body 1-1 and protrudes out of the upper end face of the main valve body 1-1, and the temperature regulating handle 2 is limited on the main valve body 1-1 through a clamp spring; a supporting ring 43 is sleeved outside the ejector rod part 42 of the thermosensitive element 4, and then the ejector rod part 42 of the thermosensitive element 4 is plugged upwards in the second accommodating cavity 12; the inner plug of the slide cylinder 5 is arranged in the slow flow seat 6 and is sealed with the bottom by the slide cylinder plug 8, then the limit bump 54 is integrally plugged into the third containing cavity 13 upwards, and the bottom of the temperature sensing rod 41 is arranged in the interval surrounded by the limit bump 54; and finally, the base 1-2 is in threaded connection with the bottom of the main valve body 1-1. When the constant temperature valve core is specifically arranged in a water tap, the reset spring 7 is firstly arranged in a constant temperature valve core cavity for accommodating the constant temperature valve core, and then the assembled semi-finished product is plugged, so that the whole assembly is completed.
When the thermostatic valve core of the embodiment is used, as shown in fig. 4, solid arrows indicate the flow direction after hot water is fed, and hollow arrows indicate the flow direction after cold water is fed.
Cold water enters the valve body from the cold water inlet A1, enters the sliding cylinder cold water transition cavity 51 through the sliding cylinder cold inlet A2, flows out from the sliding cylinder cold outlet A3, enters the mixing water cavity C2 along the cold water inlet gap A4, hot water enters the valve body from the hot water inlet B1, enters the sliding cylinder hot water transition cavity 52 through the sliding cylinder hot inlet B2, flows out from the sliding cylinder hot outlet B3, enters the mixing water cavity C2 along the hot water inlet gap B4, cold water and hot water are mixed in the mixing water cavity C2 and then ascend, enter the third containing cavity 13 along the mixing water outlet channel C3, are sensed by the temperature sensing element 4, and mixed water flows out of the constant-temperature valve core from the mixing water outlet C1. When the sensed water temperature exceeds the preset temperature, the temperature sensing bag in the temperature sensing rod 41 is expanded in a temperature sensing way, and as the position of the follow-up sleeve 3 is set, the ejector rod part 42 of the thermal element 4 reversely pushes the thermal element 4 downwards to drive the sliding cylinder 5 to downwards move (the reset spring 7 is compressed and contracted), the hot water inlet gap B4 is reduced, the cold water inlet gap A4 is enlarged, namely, hot water is reduced, cold water is increased, and temperature adjustment is realized. When the sensed water temperature is smaller than the preset temperature, the temperature sensing bulb in the temperature sensing rod 41 is contracted in temperature sensing, the reset spring 7 is expanded to drive the sliding cylinder 5 to move upwards, the hot water inlet gap B4 is enlarged, the cold water inlet gap A4 is smaller, namely, hot water is increased, cold water is reduced, and temperature adjustment is realized.
According to the constant-temperature valve core provided by the invention, through improving the valve body structure and changing the installation mode of each accessory, the thermosensitive element is arranged above the sliding cylinder, and the water inlet and mixing space is formed below the thermosensitive element, so that cold water and hot water can be mixed first and then are subjected to temperature sensing and water outlet, the temperature sensing of the thermosensitive element is closer to the actual water outlet temperature, and the temperature control effect and the service performance of the constant-temperature valve core are effectively improved.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, as noted above, it is to be understood that the invention is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (7)
1. The thermostatic valve core is characterized by comprising a valve body (1), wherein a temperature regulating handle (2), a follow-up sleeve (3), a thermosensitive element (4) and a sliding cylinder (5) are arranged in the valve body (1) from top to bottom, and the thermostatic valve core also comprises a reset spring (7) which is propped against the bottom of the sliding cylinder (5); the peripheral wall of the valve body (1) is provided with a mixed water outlet (C1), a cold water inlet (A1) and a hot water inlet (B1) from top to bottom; the thermosensitive element (4) is a paraffin constant temperature component and comprises a temperature sensing rod (41) and a push rod part (42), wherein the lower end of the temperature sensing rod (41) is propped against the sliding cylinder (5), the upper end of the push rod part (42) is propped against the follow-up sleeve (3), and the mixed water outlet (C1) is opposite to the temperature sensing rod (41); a water mixing cavity (C2) is further arranged in the valve body (1), the water mixing cavity (C2) is respectively communicated with the cold water inlet (A1) and the hot water inlet (B1) through a sliding cylinder (5), the water mixing cavity (C2) is also communicated with the water mixing outlet (C1), the heat sensitive element (4) is positioned above the water mixing cavity (C2), and cold water and hot water enter the water mixing cavity (C2) to be mixed and then are subjected to temperature sensing by the heat sensitive element (4) to obtain water;
The valve body (1) comprises a main valve body (1-1) and a base (1-2), wherein the main valve body (1-1) comprises a first containing cavity (11), a second containing cavity (12), a third containing cavity (13) and a fourth containing cavity (14) from top to bottom, the follow-up sleeve (3) is contained in the first containing cavity (11), the thermosensitive element (4) is contained in the second containing cavity (12), the sliding cylinder (5) can move up and down in the third containing cavity (13), and the base (1-2) is fixedly connected with the fourth containing cavity (14); wherein the inner diameter of the third containing cavity (13) is smaller than the inner diameters of the second containing cavity (12) and the fourth containing cavity (14), and a sliding sleeve supporting seat (16) is formed between the cavity peripheral wall of the third containing cavity (13) and the main valve body (1-1); the mixed water outlet (C1) is arranged on the valve body of the second containing cavity (12) section; the cold water inlet (A1) is arranged on the valve body of the third containing cavity (13) section, and the hot water inlet (B1) is arranged on the base (1-2);
The middle part of the lower end of the sliding sleeve supporting seat (16) extends upwards to form an annular cavity, namely a water mixing cavity (C2), and the top of the water mixing cavity (C2) is positioned below the cold water inlet (A1); a plurality of mixed water outlet channels (C3) are arranged between the water mixing cavity (C2) and the upper end surface of the sliding sleeve supporting seat (16) at intervals, and the mixed water outlet channels (C3) and the cold water inlet (A1) are arranged in a staggered manner;
The sliding cylinder (5) is in a ring column shape, and a sliding cylinder cold inlet (A2), a sliding cylinder cold outlet (A3), a sliding cylinder hot outlet (B3) and a sliding cylinder hot inlet (B2) are sequentially arranged on the peripheral wall of the sliding cylinder (5) from top to bottom, and the sliding cylinder cold inlet (A2) and the sliding cylinder hot inlet (B2) respectively correspond to the cold water inlet (A1) and the hot water inlet (B1); the inside of the sliding cylinder (5) is also provided with a water-proof structure, the inner cavity of the sliding cylinder (5) is divided into a sliding cylinder cold water transition cavity (51) and a sliding cylinder hot water transition cavity (52), a sliding cylinder cold inlet (A2), a sliding cylinder cold outlet (A3) are communicated with the sliding cylinder cold water transition cavity (51), and a sliding cylinder hot outlet (B3), a sliding cylinder hot inlet (B2) are communicated with the sliding cylinder hot water transition cavity (52).
2. The thermostatic valve core for sensing temperature and outputting water after mixing cold and hot water according to claim 1, wherein a flow-limiting ring protrusion (53) is formed between a sliding cylinder cold outlet (A3) and a sliding cylinder hot outlet (B3) of the peripheral wall of the sliding cylinder (5) in a radial outward extending manner, the flow-limiting ring protrusion (53) is positioned below a sliding sleeve supporting seat (16), and the outer diameter of the flow-limiting ring protrusion (53) is larger than the inner diameter of a third containing cavity (13) and smaller than the inner diameter of a fourth containing cavity (14); the clearance space between the upper end face of the current-limiting ring boss (53) and the lower end face of the sliding sleeve supporting seat (16) is a cold water inlet gap (A4), and the clearance space between the lower end face of the current-limiting ring boss (53) and the base (1-2) is a hot water inlet gap (B4).
3. The thermostatic valve core for sensing temperature and outputting water after mixing cold and hot water according to claim 1, wherein a first sliding cylinder sealing groove (55), a second sliding cylinder sealing groove (56), a third sliding cylinder sealing groove (57) and a fourth sliding cylinder sealing groove (58) of a circular wall are respectively arranged above a sliding cylinder cold inlet (A2), between the sliding cylinder cold inlet (A2) and a sliding cylinder cold outlet (A3), between a sliding cylinder hot outlet (B3) and the sliding cylinder hot inlet (B2) and below the sliding cylinder hot inlet (B2), and a fifth sealing ring (905), a sixth sealing ring (906), a seventh sealing ring (907) and an eighth sealing ring (908) are sequentially arranged.
4. The thermostatic valve core for sensing temperature and outputting water after mixing cold water and hot water according to claim 1, wherein the upper end of the sliding cylinder (5) is sealed, and a plurality of limit lugs (54) are circumferentially arranged at intervals on the upper end surface of the sliding cylinder (5).
5. The thermostatic valve core for sensing temperature and outputting water after mixing cold and hot water as claimed in claim 1, wherein the water-proof structure is a slow flow seat (6) accommodated in an inner cavity of the sliding cylinder (5), the slow flow seat (6) is in a ring column shape, a water-proof plate (61) is arranged in the middle of the inner cavity of the slow flow seat, the interior of the slow flow seat (6) is isolated into a cold water slow flow cavity (62) and a hot water slow flow cavity (63), and meanwhile, an outer convex slow flow seat first sealing groove (64), a slow flow seat second sealing groove (65) and a slow flow seat third sealing groove (66) which are matched with the inner cavity of the sliding cylinder (5) are respectively arranged on the upper part, the middle part and the lower part of the outer wall of the slow flow seat (6); at least two cold water through holes (67) are formed in the wall of the cold water slow flow cavity (62), and at least two hot water through holes (68) are formed in the wall of the hot water slow flow cavity (63).
6. The thermostatic valve core for sensing temperature and outputting water after mixing cold and hot water according to claim 5, wherein the lower end of the sliding cylinder (5) is opened, and the lower end of the sliding cylinder (5) is sealed by connecting a sliding cylinder plug (8); the sliding cylinder plug (8) is columnar, the bottom end of the inner cavity is closed, a sliding cylinder plug base table (81) is arranged at the bottom of the sliding cylinder plug (8), and the outer diameter of the sliding cylinder plug base table (81) corresponds to the inner diameter of the base (1-2); and a mounting lug (82) is arranged below the sliding barrel plug base table (81), and the outer wall of the sliding barrel plug base table is provided with a clamping notch.
7. The thermostatic valve core for sensing temperature and outputting water after mixing cold water and hot water according to claim 1, wherein a first sealing groove (101) of a valve body is arranged above a mixed water outlet (C1) of the outer wall of a main valve body (1-1), a first sealing ring (901) is arranged in the first sealing groove, a second sealing groove (102) of the valve body is arranged between a cold water inlet (A1) and the mixed water outlet (C1), a second sealing ring (902) is arranged in the second sealing groove, a third sealing groove (103) of the valve body and a fourth sealing groove (104) of the valve body are respectively arranged above and below a hot water inlet (B1) of a base (1-2), and the third sealing groove (903) and the fourth sealing groove (904) are correspondingly arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810075209.2A CN109404560B (en) | 2018-01-26 | 2018-01-26 | Thermostatic valve core for sensing temperature and discharging water after cold water and hot water are mixed |
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| CN201810075209.2A CN109404560B (en) | 2018-01-26 | 2018-01-26 | Thermostatic valve core for sensing temperature and discharging water after cold water and hot water are mixed |
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| CN109404560B true CN109404560B (en) | 2024-05-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110285233B (en) * | 2019-05-13 | 2024-03-22 | 江门市国人温控卫浴有限公司 | Double-control constant-temperature valve core |
| CN110030404B (en) * | 2019-05-20 | 2024-04-23 | 宁波万海阀门科技有限公司 | Accurate temperature-sensing constant temperature valve core |
| CN111365493A (en) * | 2020-04-07 | 2020-07-03 | 台州市国人温控卫浴科技有限公司 | Coaxial constant-temperature shunt valve |
| CN114233897A (en) * | 2021-12-28 | 2022-03-25 | 阿诗丹顿电气有限公司 | Integrated form thermostatic valve that adjusts temperature |
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| CN207750535U (en) * | 2018-01-26 | 2018-08-21 | 台州市国人温控卫浴科技有限公司 | The thermostatic valve core that temperature-sensitive is discharged after hot and cold water mixing |
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| CN101629641A (en) * | 2009-06-10 | 2010-01-20 | 厦门市易洁卫浴有限公司 | Temperature-sensing valve core with cold water inlet and hot water inlet which are exchanged |
| CN101706010A (en) * | 2009-11-12 | 2010-05-12 | 路达(厦门)工业有限公司 | Temperature-controlled mixing valve structure |
| EP2985392A2 (en) * | 2014-08-15 | 2016-02-17 | Suprema (Zhuhai J/V) Thermostatic Sanitaryware Co., Ltd | Single-handle dual-control thermostatic faucet |
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