CN108061179B - Constant-temperature valve core with switching function - Google Patents
Constant-temperature valve core with switching function Download PDFInfo
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- CN108061179B CN108061179B CN201711480282.XA CN201711480282A CN108061179B CN 108061179 B CN108061179 B CN 108061179B CN 201711480282 A CN201711480282 A CN 201711480282A CN 108061179 B CN108061179 B CN 108061179B
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- water inlet
- valve core
- hot water
- temperature sensing
- temperature
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 370
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 230000005465 channeling Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 16
- 239000000919 ceramic Substances 0.000 description 13
- 238000007789 sealing Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 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
- F16K11/078—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 pivoted and linearly movable 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide 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
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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 discloses a constant-temperature valve core with a switch function, which comprises a valve core body, a valve core rotor and a temperature sensing assembly, wherein the valve core body is provided with a valve core opening and closing hole; the valve core body is provided with a cold water inlet, a hot water inlet and a mixed water outlet, the cold water inlet, the hot water inlet and the mixed water outlet are communicated and form a water mixing cavity, and the valve core rotor and the temperature sensing assembly are both arranged in the water mixing cavity; the valve core rotor axially rotates in the water mixing cavity to open and close the cold water inlet and the hot water inlet; the temperature sensing assembly stretches and contracts according to the temperature in the water mixing cavity and drives the valve core rotor to axially move so as to adjust the water passing area of the cold water inlet and the hot water inlet. The constant-temperature valve core has the advantages that on the basis of the constant-temperature function, the switch function is added, the automatic closing of the constant-temperature valve core is realized, the cold and hot water channeling is avoided in the unused state, the structure is simple, the occupied space is small, the accessories are few, and the assembly is simple.
Description
Technical Field
The invention relates to the field of thermostatic valves, in particular to a thermostatic valve core with a switching function.
Background
The constant temperature case is comparatively common in bathroom equipment field, mainly is through the automatic dynamic adjustment cold of temperature sensing subassembly, hot water flow area, thereby guarantee mixed water constant temperature output, but present constant temperature case sets up the switch in mixed water delivery port department in order to control tap's start-stop, this kind of constant temperature case can't close voluntarily, the cold hot water channeling is led easily under the state of not using, present constant temperature case sets up the check valve and prevents cold, hot water channeling usually between cold, hot water inlet, but this kind of structure sets up complicacy, the accessory is more, constant temperature case only has the water mixing function, can not fine adaptation user's demand, the scheme produces from this.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a constant-temperature valve core with a switch switching function, a simple structure and few accessories.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a constant temperature valve core with a switch function comprises a valve core body, a valve core rotor and a temperature sensing assembly; the valve core body is provided with a cold water inlet, a hot water inlet and a mixed water outlet, the cold water inlet, the hot water inlet and the mixed water outlet are communicated and form a water mixing cavity, and the valve core rotor and the temperature sensing assembly are both arranged in the water mixing cavity; the valve core rotor axially rotates in the water mixing cavity to open and close the cold water inlet and the hot water inlet; the temperature sensing assembly stretches and contracts according to the temperature in the water mixing cavity and drives the valve core rotor to axially move so as to adjust the water passing area of the cold water inlet and the hot water inlet.
Further, the valve core rotor is provided with a cold water passing channel and a hot water passing channel; the valve core rotor axially rotates so that the cold water channel and the hot water channel are respectively communicated with the cold water inlet and the hot water inlet or misplaced to open and close the cold water inlet and the hot water inlet; the valve core rotor moves axially, the water passing area between the cold water passing channel and the cold water inlet is increased or reduced, and the water passing area between the hot water passing channel and the hot water inlet is reduced or increased in parallel to adjust the water passing areas of the cold water inlet and the hot water inlet.
Further, the valve core rotor is provided with a plurality of cold water passing channels and hot water passing channels.
The water passing sleeve is provided with a plurality of first water inlet water guide holes and second water inlet water guide holes; the first water inlet guide hole is communicated with the cold water inlet and the cold water passing channel, and the second water inlet guide hole is communicated with the hot water inlet and the hot water passing channel.
Further, the valve core rotor and the water passing sleeve are both made of ceramic materials.
Further, the rotary assembly is arranged on the valve core body and used for driving the valve core rotor to rotate.
Further, the rotating assembly comprises a rotating hand wheel, a rotating gear, a rotating spline sleeve and a rotating spline block, the rotating hand wheel is meshed with the rotating gear, the rotating gear is detachably fixedly connected with the rotating spline sleeve, the rotating spline sleeve is meshed with the rotating spline block, and the output end of the rotating spline block is detachably fixedly connected with the valve core rotor.
Further, the temperature sensing assembly comprises a temperature sensing rod, a connecting seat and a first reset spring, and the valve core rotor is rotatably arranged in the connecting seat; one end of the temperature sensing rod is connected with the connecting seat and stretches and contracts according to the temperature, so that the valve core rotor is driven to axially move, and the water passing area of the cold water inlet and the hot water inlet is changed; and two ends of the first reset spring respectively act on the valve core body and the connecting seat to push the connecting seat to axially move during reset.
Further, the temperature setting assembly is movably connected to the valve core body and is matched with the temperature sensing rod in a propping mode to limit the temperature sensing rod to axially slide in the direction close to the temperature setting assembly.
Further, the temperature setting assembly comprises a rotary joint, a temperature sensing rod joint and a second reset spring, the rotary joint is in threaded connection with the valve core body, the temperature sensing rod joint is sleeved at the other end of the temperature sensing rod, and two ends of the second reset spring are respectively acted on the temperature sensing rod joint and the rotary joint.
Compared with the prior art, the technical scheme provided by the invention has the beneficial effects that:
1. according to the invention, the valve core rotor is arranged in the constant temperature valve core, the cold water inlet and the hot water inlet are opened and closed through the axial rotation of the valve core rotor so as to realize the automatic closing of the constant temperature valve core, and the water passing area of the cold water inlet and the hot water inlet is adjusted through the axial movement of the valve core rotor driven by the expansion and contraction of the temperature sensing assembly so as to realize the constant temperature function; the invention has the advantages of simple structure, small occupied space, no need of additionally arranging a switch at the mixed water outlet, no need of arranging a one-way valve for preventing cold and hot water channeling between the cold water inlet and the hot water inlet, few fittings, simple assembly, production cost saving and user experience improvement.
2. The valve core rotor is provided with the cold water passing channel and the hot water passing channel, so that when the valve core rotor axially rotates or axially moves, different matching relations are formed between the cold water passing channel and the cold water inlet and between the hot water passing channel and the hot water inlet, the opening and closing of the cold water inlet and the hot water inlet and the adjustment of the water passing areas of the cold water inlet and the hot water inlet are realized, and the valve core rotor is simple and practical in structure.
3. The case rotor is equipped with a plurality of cold water and crosses water channel and hot water and cross water channel, so, every cold, hot water cross water channel and cold, hot water inlet between cross water area less, is favorable to realizing the accurate regulation and control to the temperature, and has avoided because cold, hot water cross water channel and cold, hot water inlet between the too big temperature that leads to changes too fast, influences user's use experience.
4. The water passing sleeve is arranged, the first water inlet water guide holes of the water passing sleeve are used for splitting cold water, and the second water inlet water guide holes are used for splitting hot water, so that when the valve core rotor moves axially, the change rate of the water passing area between the cold water passing channel and the cold water inlet or between the hot water passing channel and the hot water inlet is smaller, and accurate regulation and control of the water temperature are facilitated; when the valve core rotor axially rotates, the cold water channel and the hot water channel are respectively communicated with the first water inlet water guide hole and the second water inlet water guide hole or misplaced, so that the cold water inlet and the hot water inlet can be opened and closed.
5. The valve core rotor and the water passing sleeve are made of ceramic materials, and compared with the valve core rotor and the water passing sleeve made of metal materials, the ceramic materials are not easy to corrode to generate scale, so that the service life is long, and the quality is more stable.
6. The rotary component is arranged to drive the valve core rotor to rotate, so that the structure is simple and the action is reliable.
7. The structural design of the rotating assembly enables the rotating gear, the rotating spline sleeve and the rotating spline block to be sequentially driven to rotate through the rotating hand wheel, and then the valve core rotor is driven to rotate, so that the rotary valve is simple and practical in structure and reliable in operation.
8. The temperature sensing assembly is structurally characterized in that the temperature sensing rod stretches and pushes the connecting seat to axially move, the valve core rotor arranged in the connecting seat is driven to axially move, the structure is simple and easy to realize, and the assembly is convenient. The first reset spring is arranged, so long as the first reset spring is in the range of effective elastic deformation, the connecting seat can be pushed to axially move during reset, when the connecting seat axially moves to compress the first reset spring, the displacement is limited by the compression quantity of the first reset spring, namely, the axial displacement of the valve core rotor in the connecting seat is limited, so that the water passing area ratio of the cold water inlet and the hot water inlet is stabilized in a certain range when the first reset spring is compressed to the limit, the constant water outlet temperature is ensured, and the constant temperature adjusting effect is better.
9. The temperature setting assembly is arranged, when the temperature of mixed water is set, the position of the temperature sensing rod can be limited by changing the position of the temperature setting assembly, due to the limitation of the temperature setting assembly, the axial displacement of the temperature sensing rod, which is close to the driving direction, is limited when the temperature sensing rod stretches and contracts according to the temperature, especially when the temperature sensing rod stretches, so that the axial displacement of the valve core rotor is limited, the water passing area of the cold water inlet and the hot water inlet is stabilized in a certain range at a displacement limiting point, the water temperature in the water mixing cavity is stabilized in a certain range, and the temperature setting function is realized.
10. In the structural setting scheme of the temperature setting assembly, through limiting the position of the rotary joint, the temperature sensing rod can extend towards the rotary joint only in the compression stroke range of the second reset spring, so that the limit of the axial displacement of the temperature sensing rod is realized, the water passing area ratio of the cold water inlet and the hot water inlet is stabilized in a certain range when the second reset spring is compressed to the limit, the constant water outlet temperature is ensured, the temperature setting is realized, the temperature scale can be set according to the compression stroke of the spring in actual operation, the design is ingenious, and the operation is reliable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of the present invention.
Reference numerals:
the valve comprises a valve core body 1, a cold water inlet 11, a hot water inlet 12 and a mixed water outlet 13; a valve core rotor 2, a cold water passing channel 21 and a hot water passing channel 22; the temperature sensing assembly 3, the temperature sensing rod 31, the sliding rod 311, the temperature sensing head 312, the connecting seat 32, the mounting seat 321, the sealing upper ceramic plate 322 and the sealing lower ceramic plate 323, and the first reset spring 33; a rotating assembly 4, a rotating hand wheel 41, a rotating gear 42, a rotating spline housing 43 and a rotating spline block 44; a water passing sleeve 5, a first water inlet guide hole 51, a second water inlet guide hole 52; a temperature setting assembly 6, a rotary joint 61, a temperature sensing rod joint 62 and a second return spring 63.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2, 3 and 4, a constant temperature valve core with a switch function comprises a valve core body 1, a valve core rotor 2 and a temperature sensing component 3; the valve core body 1 is provided with a cold water inlet 11, a hot water inlet 12 and a mixed water inlet 13, the cold water inlet 11, the hot water inlet 12 and the mixed water inlet 13 are communicated and form a water mixing cavity, and the valve core rotor 2 and the temperature sensing component 3 are both arranged in the water mixing cavity; the valve core rotor 2 axially rotates in the water mixing cavity to open and close the cold water inlet 11 and the hot water inlet 12; the temperature sensing assembly 3 stretches and contracts according to the temperature in the water mixing cavity and drives the valve core rotor 2 to axially move so as to adjust the water passing areas of the cold water inlet 11 and the hot water inlet 12. According to the invention, the valve core rotor 2 is arranged in the constant temperature valve core, the cold water inlet 11 and the hot water inlet 12 are opened and closed through the axial rotation of the valve core rotor 2 so as to realize the autonomous closing of the constant temperature valve core, and the water passing areas of the cold water inlet 11 and the hot water inlet 12 are adjusted through the axial movement of the valve core rotor 2 driven by the expansion and contraction of the temperature sensing assembly 3 so as to realize the constant temperature function; the invention has the advantages of simple structure, small occupied space, no need of additionally arranging a switch at the mixed water inlet 13 or arranging a one-way valve for preventing cold water and hot water from flowing between the cold water inlet 11 and the hot water inlet 12, few accessories, simple assembly, production cost saving and user experience improvement. The rotation of the valve core rotor 2 is realized by a rotating component 4 arranged on the valve core body 1, and the valve core rotor 2 can be driven to rotate by rotating the rotating component 4, so that the valve core rotor has a simple structure and reliable action. The valve core rotor 2 is made of ceramic materials, and compared with the valve core rotor 2 made of metal materials, the valve core rotor 2 is not easy to corrode and generate scale, and has long service life and more stable quality.
Specifically, the rotating assembly 4 includes a rotating hand wheel 41, a rotating gear 42, a rotating spline housing 43 and a rotating spline block 44, the rotating hand wheel 41 is meshed with the rotating gear 42, the rotating gear 42 is detachably fixedly connected with the rotating spline housing 43, the rotating spline housing 43 is meshed with the rotating spline block 44, the output end of the rotating spline block 44 is detachably fixedly connected with the valve core rotor 2, and the rotating hand wheel 41 can sequentially drive the rotating gear 42, the rotating spline housing 43 and the rotating spline block 44 to rotate so as to drive the valve core rotor 2 to rotate.
The temperature sensing component 3 drives the valve core rotor 2 to move mainly through the following structural design, the temperature sensing component 3 comprises a temperature sensing rod 31 and a connecting seat 32, and the valve core rotor 2 is rotatably arranged in the connecting seat 32; the temperature sensing rod 31 is connected with the connecting seat 32 and stretches out and draws back according to the temperature to drive the valve core rotor 2 to axially move so as to change the water passing area of the cold water inlet 11 and the hot water inlet 12, and the structure is simple and easy to realize and is convenient to assemble.
According to the invention, the first return spring 33 is arranged between the valve core body 1 and the connecting seat 32, so that two ends of the first return spring 33 respectively act on the valve core body 1 and the connecting seat 32, the first return spring 33 is in a compressed state in a cold water state, and when the temperature rises, the temperature sensing rod 31 stretches to push the connecting seat 32 to axially displace, and the first spring returns to stretch to push the connecting seat 32 to axially displace. Therefore, as long as the first return spring 33 is within the effective elastic deformation range, the connecting seat 32 can be pushed to move axially during the return, and when the connecting seat 32 moves axially to compress the first return spring 33, the displacement is limited by the compression of the first return spring 33, that is, the axial displacement of the valve core rotor 2 in the connecting seat 32 is limited, so that the water passing area ratio of the cold water inlet 11 and the hot water inlet 12 is stabilized within a certain range when the first return spring 33 is compressed to the limit, the constant water outlet temperature is ensured, and the constant temperature adjusting effect is better.
The invention also sets the temperature setting assembly 6 based on the structure, and the temperature setting assembly 6 is movably connected to the valve core body 1 and is matched with the temperature sensing rod 31 in a propping way so as to limit the temperature sensing rod 31 to axially slide in the direction approaching to the temperature setting assembly 6. The temperature setting assembly 6 is arranged, when the temperature of mixed water is set, the position of the temperature sensing rod 31 can be limited by changing the position of the temperature setting assembly 6, due to the limitation of the temperature setting assembly 6, the axial displacement of the temperature sensing rod 31 in the direction close to the temperature setting assembly 6 is limited when the temperature is telescopic, especially when the temperature is elongated, so that the axial displacement of the valve core rotor 2 is limited, the water passing areas of the cold water inlet 11 and the hot water inlet 12 are stabilized in a certain range at the displacement limiting point, the water temperature in the water mixing cavity is also stabilized in a certain range, the temperature setting function is realized, the design is simple and ingenious, the operation is convenient, and the temperature adjusting function is realized on the basis of constant temperature.
The temperature setting assembly 6 comprises a rotary joint 61, a temperature sensing rod joint 62 and a second return spring 63, the rotary joint 61 is in threaded connection with the valve core body 1, the temperature sensing rod joint 62 is sleeved at the other end of the temperature sensing rod 31, and two ends of the second return spring 63 respectively act on the temperature sensing rod joint 62 and the rotary joint 61. In the structural setting scheme of the temperature setting assembly 6, through limiting the position of the rotary joint 61, the temperature sensing rod 31 can extend towards the rotary joint 61 only in the compression stroke range of the second reset spring 63, so that the axial displacement of the temperature sensing rod 31 is limited, the water passing area ratio of the cold water inlet 11 and the hot water inlet 12 is stabilized in a certain range when the second reset spring 63 is compressed to the limit, the constant water outlet temperature is ensured, the temperature setting is realized, the temperature scale can be set according to the compression stroke of the spring in actual operation, the design is ingenious, and the operation is reliable.
The temperature sensing rod 31 comprises a sliding rod 311 and a temperature sensing head 312, the temperature sensing head 312 is filled with a thermal sensitive material, in this embodiment, paraffin is selected as the thermal sensitive material, one end of the sliding rod 311 is slidably arranged in the temperature sensing head 312, the other end of the sliding rod is matched with the temperature sensing rod joint 62 in a propped manner, and the temperature sensing head 312 is connected with the connecting seat 32. In the structural design of the temperature sensing rod 31, the rotary joint 61 compresses the second reset spring 63 to drive the sliding rod 311 to axially move in the direction close to the temperature sensing head 312, when the sliding rod 311 is driven by the temperature setting assembly 6 to axially move, the temperature sensing head 312 does not displace, namely the valve core rotor 2 does not displace, when the temperature sensing head 312 stretches according to temperature, particularly when stretching, the axial displacement of the temperature sensing head 312 is limited by the sliding rod 311 and the temperature setting assembly 6, so that the water outlet temperature is the set temperature, and the user experience is good. And the above structural design makes the axial movement range of the temperature sensing head 312 larger, and the cold and hot water inlets can be correspondingly larger, so as to avoid impurity blockage. Wherein, the temperature sensing head 312 is close to the mixed water inlet 13 to ensure the water outlet to be stable and constant.
The valve core rotor 2 axially rotates to open and close the cold water inlet 12 and the hot water inlet 12 is mainly realized through the following structural design, and the valve core rotor 2 is provided with a cold water passing channel 21 and a hot water passing channel 22; the valve core rotor 2 axially rotates to enable the cold water passing channel 21 and the hot water passing channel 22 to be respectively communicated with the cold water inlet 11 and the hot water inlet 12 or staggered so as to open and close the cold water inlet 11 and the hot water inlet 12; the spool rotor 2 moves axially to increase or decrease the water passing area between the cold water passing channel 21 and the cold water inlet 11, and in combination to decrease or increase the water passing area between the hot water passing channel 22 and the hot water inlet 12 to adjust the water passing areas of the cold water inlet 11 and the hot water inlet 12. The above arrangement makes the valve core rotor 2 form different coordination relations between the cold water channel 21 and the cold water inlet 11 and between the hot water channel 22 and the hot water inlet 12 when axially rotating or axially moving, so as to realize the opening and closing of the cold water inlet 11 and the hot water inlet 12 and the adjustment of the water passing area of the cold water inlet 11 and the hot water inlet 12, and the structure is simple and practical. The cold water passing channel 21 can be realized by a first opening and a second opening which are communicated, the hot water passing channel 22 can be realized by a third opening and a fourth opening which are communicated, wherein the first opening and the second opening are symmetrically arranged, and the third opening and the fourth opening are symmetrically arranged, so that when the cold water inlet 11 and the hot water inlet 12 are opened and closed, the valve core rotor 2 only needs to axially rotate 180 degrees, and the time and the labor are saved.
In this embodiment, the valve core rotor 2 is provided with a plurality of cold water channels 21 and hot water channels 22, so, the water passing area between each cold water channel 21, hot water channel 22 and cold water inlet 11 and hot water inlet 12 is smaller, which is favorable for realizing accurate regulation and control of water temperature, and avoids the influence on user experience due to too fast water temperature change caused by too large water passing area between the cold water channel and the hot water channel and between the hot water channel and the hot water inlet.
The water passing sleeve 5 is made of ceramic materials, compared with metal materials, the water passing sleeve 5 is not easy to corrode and generate scale, the water passing sleeve 5 is close to the connecting seat 32, and the water passing sleeve 5 is provided with a plurality of first water inlet water guide holes 51 and second water inlet water guide holes 52; the first water inlet guide hole 51 is communicated with the cold water inlet 11 and the cold water passing channel 21, and the second water inlet guide hole 52 is communicated with the hot water inlet 12 and the hot water passing channel 22. The water passing sleeve 5 is arranged, the cold water is split by the first water inlet water guide holes 51 of the water passing sleeve 5, and the hot water is split by the second water inlet water guide holes 52, so that when the valve core rotor 2 moves axially, the water passing area change rate between the cold water passing channel 21 and the cold water inlet 11 or between the hot water passing channel 22 and the hot water inlet 12 is smaller, and accurate regulation and control of the water temperature are facilitated; when the spool rotor 2 rotates axially, the cold water passing channel 21 and the hot water passing channel 22 are respectively communicated with the first water inlet guide hole 51 and the second water inlet guide hole 52 or are staggered, so that the cold water inlet 12 and the hot water inlet 12 can be opened and closed. It is also conceivable that the water jacket 5 may be provided in plural.
In the scheme, the connecting seat 32 specifically comprises a mounting seat 321, an upper sealing ceramic plate 322 and a lower sealing ceramic plate 323, the mounting seat 321 is in threaded connection with one end of the temperature sensing rod 31, the upper sealing ceramic plate 322 and the lower sealing ceramic plate 323 are attached to the mounting seat 321 and form a cavity therebetween, the valve core rotor 2 is arranged in the cavity, and the upper sealing ceramic plate 322 and the lower sealing ceramic plate 323 are respectively provided with through holes corresponding to the cold water passing channel 21 and the hot water passing channel 22 of the valve core rotor 2, so that the valve core rotor 2 is sealed more firmly, and the quality stability of the valve core rotor is further improved.
The specific working principle is as follows:
when the valve core rotor 2 is driven to rotate by rotating the hand wheel 41, a user drives the valve core rotor 2 to rotate, so that the cold water passing channel 21 of the valve core rotor 2 corresponds to the first water inlet water guide hole 51, the hot water passing channel 22 corresponds to the second water inlet water guide hole 52, namely, the cold water passing channel 21 and the hot water passing channel 22 correspond to the through holes of the upper ceramic plates, in this way, cold water flows into the cold water passing channel 21 of the valve core rotor 2 through the cold water inlet 11, the first water inlet water guide hole 51 and the through holes of the sealing upper ceramic plates 322, hot water flows into the hot water passing channel 22 of the valve core rotor 2 through the hot water inlet 12, the second water inlet water guide hole 52 and the through holes of the sealing upper ceramic plates 322, and cold water and hot water flow out through the mixed water outlet 13 after being mixed in the water mixing cavity.
When the temperature is set, the rotary joint 61 is forced to rotate to a certain position by the force applied to the rotary joint 61, at this time, the rotary joint 61 compresses the second return spring 63 to push the temperature sensing rod joint 62, so that the sliding rod 311 is pushed to move, and the displacement of the temperature sensing head 312 towards the temperature setting assembly 6 is equivalent to the compression of the second return spring 63, so that the axial displacement of the valve core rotor 2 is within a certain range, and the temperature setting can be realized by the displacement of the rotary joint 61.
When the temperature in the water mixing cavity is too high, paraffin in the temperature sensing head 312 expands and drives the valve core rotor 2 to axially move, so that the cold water passing channel 21 corresponds to the first water inlet water guide hole 51 to increase the water passing area of the cold water inlet 11, and the hot water passing channel 22 is staggered or partially staggered with the second water inlet water guide hole 52 to reduce the water passing area of the hot water inlet 12, namely, the matching relation between the through hole of the sealing upper ceramic plate 322 and the first water inlet water guide hole 51 and the second water inlet water guide hole 52 is changed, when the temperature sensing head 312 expands to be propped against the sliding rod 311, the sliding rod 311 pushes the temperature sensing rod joint 62 to compress the second reset spring 63, and when the second reset spring 63 is compressed to the limit, the axial movement of the temperature sensing head 312 is blocked, and is kept at a certain position, at the moment, the water passing area ratio of the cold water inlet 12 and the water outlet temperature are stable.
When the temperature in the water mixing cavity is too low, paraffin in the temperature sensing head 312 contracts and drives the valve core rotor 2 to axially move, so that the cold water passing channel 21 and the first water inlet water guide hole 51 are staggered or partially staggered to reduce the water passing area of the cold water inlet 11, and the hot water passing channel 22 and the second water inlet water guide hole 52 are correspondingly arranged to increase the water passing area of the hot water inlet 12, namely, the matching relation between the through hole of the sealing upper ceramic plate 322 and the first water inlet water guide hole 51 and the second water inlet water guide hole 52 is changed, at the moment, the temperature sensing head 312 drives the connecting seat 32 to gradually compress the first reset spring 33, when the first reset spring 33 is compressed to the limit, the axial movement of the connecting seat 32 is blocked, and the connecting seat is kept at a certain position, and the water passing area ratio of the cold water inlet 12 and the hot water inlet 12 is stable, and the water outlet temperature is stable.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of use in various other combinations, modifications and environments and is capable of changes or modifications within the spirit of the invention herein, either as a result of the foregoing teachings or as a result of the knowledge or skill 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 (10)
1. A constant temperature case of area switch function, its characterized in that: the valve comprises a valve core body, a valve core rotor and a temperature sensing assembly; the valve core body is provided with a cold water inlet, a hot water inlet and a mixed water outlet, the cold water inlet, the hot water inlet and the mixed water outlet are communicated and form a water mixing cavity, and the valve core rotor and the temperature sensing assembly are both arranged in the water mixing cavity;
the valve core rotor axially rotates in the water mixing cavity to open and close the cold water inlet and the hot water inlet;
the temperature sensing assembly stretches and contracts according to the temperature in the water mixing cavity and drives the valve core rotor to axially move so as to adjust the water passing area of the cold water inlet and the hot water inlet.
2. A thermostatic valve cartridge with switching function as defined in claim 1, wherein: the valve core rotor is provided with a cold water passing channel and a hot water passing channel;
the valve core rotor axially rotates so that the cold water channel and the hot water channel are respectively communicated with the cold water inlet and the hot water inlet or misplaced to open and close the cold water inlet and the hot water inlet;
the valve core rotor moves axially, the water passing area between the cold water passing channel and the cold water inlet is increased or reduced, and the water passing area between the hot water passing channel and the hot water inlet is reduced or increased in parallel to adjust the water passing areas of the cold water inlet and the hot water inlet.
3. A thermostatic valve cartridge with switching function as defined in claim 2, wherein: the valve core rotor is provided with a plurality of cold water passing channels and hot water passing channels.
4. A thermostatic cartridge with switching function according to claim 2 or 3, characterized in that: the water passing sleeve is arranged between the cold water inlet and the hot water inlet and the valve core rotor, and is provided with a plurality of first water inlet water guide holes and second water inlet water guide holes; the first water inlet guide hole is communicated with the cold water inlet and the cold water passing channel, and the second water inlet guide hole is communicated with the hot water inlet and the hot water passing channel.
5. The thermostatic valve core with a switching function as defined in claim 4, wherein: the valve core rotor and the water passing sleeve are both made of ceramic materials.
6. A thermostatic valve cartridge with switching function as defined in claim 1, wherein: the rotary assembly is arranged on the valve core body and used for driving the valve core rotor to rotate.
7. The thermostatic valve core with a switching function as defined in claim 6, wherein: the rotary assembly comprises a rotary hand wheel, a rotary gear, a rotary spline sleeve and a rotary spline block, wherein the rotary hand wheel is meshed with the rotary gear, the rotary gear is detachably fixedly connected with the rotary spline sleeve, the rotary spline sleeve is meshed with the rotary spline block, and the output end of the rotary spline block is detachably fixedly connected with the valve core rotor.
8. A thermostatic valve cartridge with switching function as defined in claim 1, wherein: the temperature sensing assembly comprises a temperature sensing rod, a connecting seat and a first reset spring, and the valve core rotor is rotatably arranged in the connecting seat; one end of the temperature sensing rod is connected with the connecting seat and stretches and contracts according to the temperature, so that the valve core rotor is driven to axially move, and the water passing area of the cold water inlet and the hot water inlet is changed; and two ends of the first reset spring respectively act on the valve core body and the connecting seat to push the connecting seat to axially move during reset.
9. The thermostatic valve core with a switching function as defined in claim 8, wherein: the temperature setting assembly is movably connected to the valve core body and is matched with the temperature sensing rod in a propping mode to limit the temperature sensing rod to axially slide in the direction close to the temperature setting assembly.
10. A thermostatic valve cartridge with switching function as defined in claim 9, wherein: the temperature setting assembly comprises a rotary joint, a temperature sensing rod joint and a second reset spring, wherein the rotary joint is in threaded connection with the valve core body, the temperature sensing rod joint is sleeved at the other end of the temperature sensing rod, and two ends of the second reset spring are respectively acted on the temperature sensing rod joint and the rotary joint.
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| CN109442089A (en) * | 2018-12-28 | 2019-03-08 | 王英瑞 | A kind of temperature detect switch (TDS) |
| CN110332350A (en) * | 2019-07-03 | 2019-10-15 | 开平市沃特卫浴有限公司 | A kind of pull tap convenient for assembling inner core |
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