CN109695744B - Improved constant-temperature valve core and constant-temperature faucet - Google Patents

Improved constant-temperature valve core and constant-temperature faucet Download PDF

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Publication number
CN109695744B
CN109695744B CN201910096759.7A CN201910096759A CN109695744B CN 109695744 B CN109695744 B CN 109695744B CN 201910096759 A CN201910096759 A CN 201910096759A CN 109695744 B CN109695744 B CN 109695744B
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CN
China
Prior art keywords
ceramic
rotating sleeve
sleeve
water
valve body
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CN201910096759.7A
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Chinese (zh)
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CN109695744A (en
Inventor
卢文荣
石瑞发
张建强
曾广移
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Pengwei Xiamen Industry Co ltd
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Pengwei Xiamen Industry Co ltd
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Priority to CN201910096759.7A priority Critical patent/CN109695744B/en
Publication of CN109695744A publication Critical patent/CN109695744A/en
Priority to GB1918799.6A priority patent/GB2582051B/en
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Publication of CN109695744B publication Critical patent/CN109695744B/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/01Control of temperature without auxiliary power
    • G05D23/13Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1306Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
    • G05D23/132Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
    • G05D23/134Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid
    • G05D23/1346Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means
    • G05D23/1353Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of mixed fluid with manual temperature setting means combined with flow controlling means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06Multiple-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
    • F16K11/072Multiple-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 closure members
    • F16K11/074Multiple-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 closure members with flat sealing faces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/08Check valves with guided rigid valve members shaped as rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/002Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • F16K31/605Handles for single handle mixing valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A constant temperature valve core and a constant temperature tap, comprising: the flow control assembly is arranged at the top of the valve body and is separated from the constant temperature assembly, the ceramic moving plate is driven to axially rotate relative to the ceramic fixed plate by rotating the rotating sleeve of the flow control assembly, so that the flow of the mixed fluid (F3) flowing through the water passing groove and the water passing channel is changed to realize flow control.

Description

Improved constant-temperature valve core and constant-temperature faucet
Technical Field
The invention relates to a constant temperature valve core with flow and temperature regulation and a constant temperature faucet manufactured by using the constant temperature valve core.
Background
In the present application, a thermostatic valve core for a mixing faucet is disclosed in CN101523322a, which can realize flow and temperature control respectively, according to the description in the document, EP0936524A (the same family of patent is US 6085984) more specifically discloses the working principle of the thermostatic valve core, that is, the thermostatic component is partially filled with a material which expands with the rise of temperature to drive the piston to translate along the axial direction relative to the main body, but in practical application, when we need to adjust the temperature of the valve core, the flow of the valve core also changes, for the reason that the screw for controlling the temperature is coaxially nested with the body for controlling the flow, and an O-shaped sealing ring is arranged between the outer wall of the screw and the inner wall of the body, so that friction contact between the screw and the wall of the body is further increased, and when the screw is rotated for temperature adjustment, the body for controlling the flow also generates slight angle change, so that the flow of the piston also generates corresponding change, and vice versa, in view of the present application, the present inventor has developed and has the proposal for the above-mentioned drawbacks in the prior art.
Disclosure of Invention
The first object of the present invention is to provide a thermostatic valve core capable of realizing temperature adjustment and flow adjustment, wherein the thermostatic valve core does not affect a flow control assembly when temperature adjustment is performed, and otherwise, does not affect the thermostatic assembly when flow adjustment is performed by the flow control assembly.
A second object of the present invention is to provide a thermostatic faucet using the above thermostatic cartridge.
To achieve the first object of the present invention, a thermostatic cartridge includes:
The valve body is hollow, the top of the valve body is provided with a first supporting part, the first supporting part is provided with a plurality of water passing through holes, and the middle part of the first supporting part is upwards extended with a sleeve; the outer side wall or the bottom of the valve body is provided with a first water inlet for cold fluid (F1) to flow in, a second water inlet for heat fluid (F2) to flow in and a water outlet for mixed fluid (F3) to flow out, and a first water passing channel and a second water passing channel which are used for the mixed fluid (F3) to flow and are mutually separated are formed in a cavity of the valve body, the first water passing channel is communicated with the first water inlet and the second water inlet, and the second water passing channel is communicated with the water outlet;
the constant temperature assembly is sleeved in the sleeve of the valve body, the opening degree of the first water inlet and the opening degree of the second water inlet are regulated by the constant temperature assembly, and then the mixing proportion of cold fluid (F1) and hot fluid (F2) flowing into the inner cavity of the valve body is regulated, so that the temperature control of the mixed fluid (F3) is realized;
the valve further comprises a flow control assembly, wherein the flow control assembly is arranged on the first supporting part of the valve body and comprises a ceramic stator, a ceramic rotor and a rotating sleeve; the ceramic stator, the ceramic rotor and the rotating sleeve are all provided with a first through hole which penetrates through each other, and the ceramic stator, the ceramic rotor and the rotating sleeve are sleeved outside the sleeve from bottom to top by the first through hole; the ceramic stator is provided with a water passing groove, one side end face of the ceramic rotor, facing the ceramic stator, is provided with a water passing channel and a sealing surface, the ceramic rotor is in surface contact with the ceramic stator, and the rotating sleeve drives the ceramic rotor to axially rotate relative to the ceramic stator, so that the flow of mixed fluid (F3) flowing through the water passing groove and the water passing channel is changed;
the mixed water flow (F3) flows into the water through groove of the ceramic stator and the water through channel of the ceramic rotor through the first water through channel, then flows into the second water through channel, and finally flows out of the water outlet.
Further, the water through groove of the ceramic stator is hollow in a way that the upper end face and the lower end face mutually penetrate, an oil storage groove is further formed in one side end face of the ceramic stator, a plurality of first fixing clamping grooves matched with the first supporting portion of the valve body are formed in the bottom or the side wall of the ceramic stator, and the first clamping points corresponding to the first supporting portion of the valve body are matched in a positioning mode through the fixing clamping grooves.
Optionally, a water stop washer is arranged between the ceramic stator and the first supporting part.
Further, the flow passage of the ceramic moving plate is an arc-shaped groove with the depth gradually changed from shallow to deep, the arc-shaped groove does not enable the upper end face and the lower end face of the ceramic moving plate to penetrate through each other, a second fixing clamping groove is formed in the outer side portion or the top end face of the ceramic moving plate, a second clamping point is arranged at the position, opposite to the second fixing clamping groove, of the rotating sleeve, and the rotating sleeve and the ceramic moving plate are fixedly clamped and matched through the second clamping point and the second fixing clamping groove of the ceramic moving plate, so that relative rotation is prevented from occurring between the rotating sleeve and the ceramic moving plate.
Further, a plurality of reinforcing ribs are arranged in the arc-shaped groove of the ceramic moving plate, and the opposite end faces positioned at the shallow part of the arc-shaped groove are provided with arc-shaped sinking grooves with depth from deep to shallow, so that the thickness uniformity of the wall thickness at the bottom of the arc-shaped groove is ensured.
Further, the outer side wall of the first supporting part of the valve body further comprises a limiting column, a first limiting point and a second limiting point which are at a certain angle interval are arranged at the outer diameter end of the bottom of the rotating sleeve, and the rotating sleeve is respectively in abutting fit with the limiting column of the first supporting part through the first limiting point and the second limiting point when rotating, so that the limit of the rotating angle range of the rotating sleeve is realized.
Further, the rotary sleeve comprises a gland, and the gland is sleeved at the outer diameter end of the rotary sleeve and is fixedly connected with the first supporting part of the valve body, so that the rotary sleeve can relatively rotate relative to the gland and cannot be pulled out.
Further, the rotating sleeve is provided with a small-diameter end and a large-diameter end from top to bottom, and the small-diameter end is provided with a limiting rack for preventing the handle from idling; the bottom of the outer side wall of the large-diameter end is provided with a first limiting point and a second limiting point which are at a certain angle interval, and a short side wall is formed between the first limiting point and the second limiting point on the side wall of the large-diameter end; the outer diameter end of the first supporting part of the valve body forms a flange, the flange extends upwards along the side wall of the outer diameter end to form a limit column, the side wall of the first supporting part forms two buckling points, the rotating sleeve is sleeved at the outer diameter end of the first supporting part, the first limit point and the second limit point of the rotating sleeve are propped against the flange of the first supporting part, and the bottom of the short side wall and the top of the limit column are propped against each other; the top of gland have keep off along, should keep off along the lateral wall be equipped with two second through-holes and the notch that is used for inserting spacing post that two buckle points are relative with first supporting part respectively, the gland cover is arranged in the big footpath end of rotating the cover to through the mutual locate fit of notch and the spacing post of first supporting part, make things convenient for two through-holes of gland and the mutual buckle cooperation of two buckle points of first bearing, ensure that the keep off along of gland and the big footpath end top terminal surface of rotating the cover are relative.
Further, a third clamping point which is used for being mutually nested and matched with the water outlet body shell is arranged on the outer side wall of the valve body.
The invention also discloses a constant temperature faucet, which comprises a shell, a handle and a temperature regulation control, wherein any one of the constant temperature valve cores is assembled in the shell of the constant temperature faucet, the handle is fixedly connected with the rotating sleeve and used for controlling the flow control assembly, and the temperature regulation control is used for controlling the constant temperature assembly.
Further, the inner cavity of the shell is hollow, the bottom end of the shell is closed, the top of the shell is provided with an open end, and the middle of the shell is respectively provided with a first water inlet passage for the inflow of cold fluid F1, a second water inlet passage for the inflow of heat supply fluid F2 and at least one water outlet passage for the outflow of mixed fluid F3 along the radial direction; the constant temperature valve comprises a constant temperature valve core, a first water inlet passage, a second water inlet passage, a locking sleeve, a handle sleeve, a fixing hole, a fixing sleeve and a locking sleeve, wherein the first water inlet passage is communicated with the first water inlet of the constant temperature valve core, the second water inlet passage is communicated with the second water inlet of the constant temperature valve core, and the water outlet passage is communicated with the water outlet of the constant temperature valve core; the temperature regulation control is fixedly arranged at the top knob end of the constant temperature component, and no physical connection relation exists between the temperature regulation control and the handle.
Further, the matching surface of at least one side of the rotating sleeve and the handle is provided with a positioning structure, and the handle can be inserted and sleeved outside the rotating sleeve only along one fixing direction of the rotating sleeve by the positioning structure.
Further, the handle fixing hole is a square hole, and the inner hole of the handle fixing hole is provided with a chamfer; the top of the extension section buckle is provided with a guide inclined plane.
The constant temperature valve core and the constant temperature faucet manufactured by using the constant temperature valve core are adopted, and the constant temperature assembly and the flow control assembly are mutually separated, namely, the constant temperature assembly is arranged in the sleeve of the valve body, and the flow control assembly is arranged outside the sleeve of the valve body, so that any parts of the constant temperature assembly and the flow control assembly are mutually isolated without any physical contact, the constant temperature valve core is ensured not to have any influence on the flow control assembly when temperature adjustment is performed, and the constant temperature assembly is also not influenced when flow adjustment is performed, so that the accuracy of flow and temperature adjustment is ensured.
Drawings
The detailed description given as non-limiting examples better explain what the invention comprises and can be implemented with reference to the accompanying drawings, in which:
FIG. 1 is an exploded perspective view of a thermostatic cartridge of the present invention;
FIG. 2 is a schematic diagram of the assembly of a thermostatic cartridge of the present invention;
FIG. 3 is a schematic diagram of an assembly of a thermostatic cartridge of the present invention with a gland removed;
FIG. 4 is a perspective view of two different angles of the swivel housing of the present invention;
FIG. 5 is a schematic perspective view of two different angles of a ceramic rotor of the present invention;
FIG. 6 is a schematic perspective view of two different angles of a ceramic stator according to the present invention;
FIG. 7 is a semi-sectional view of the thermostatic cartridge of the present invention in a water stop condition;
FIG. 8 is a semi-sectional view of the thermostatic cartridge of the present invention in a water passing state;
FIG. 9 is a schematic diagram of the assembly of a thermostatic cartridge with a thermostatic faucet housing of the present invention;
FIG. 10 is a schematic perspective view of a handle and rotating sleeve of the present invention;
FIG. 11 is a schematic diagram of the assembly of a thermostatic cartridge with a thermostatic faucet of the present invention.
Detailed Description
In the description of the present invention, it should be understood that the terms "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.
The invention is described in detail below with reference to the accompanying drawings and specific embodiments.
1-2, A thermostatic cartridge 100 comprising: the constant-temperature valve comprises a valve body 1, a constant-temperature assembly 2 and a flow control assembly 3, wherein the inner cavity of the valve body 1 is hollow, the top of the valve body is provided with a first supporting part 11, the first supporting part 11 is provided with a plurality of water through holes 111, and a sleeve 12 extends upwards in the middle of the first supporting part 11; the outer side wall or bottom of the valve body 1 is provided with a first water inlet 13 for cold fluid F1 to flow in, a second water inlet 14 for heat fluid F2 to flow in and a water outlet 15 for mixed fluid F3 to flow out, in the embodiment of the invention, the first water inlet 13, the second water inlet 14 and the water outlet 15 are all arranged on the outer side wall of the valve body 1, a first filter screen 15 and a second filter screen 16 are respectively sleeved on the outer walls of the first water inlet 13 and the second water inlet 14, a first water passing channel I and a second water passing channel II for mixed fluid F3 to flow in and to be separated from each other are formed in a cavity of the valve body 1, the first water passing channel I is communicated with the first water inlet 13 and the second water inlet 14, and the second water passing channel II is communicated with the water outlet 15.
The constant temperature component 2 is sleeved in the sleeve 12 of the valve body 1, the opening degree of the first water inlet 13 and the second water inlet 14 is regulated by the constant temperature component 2, and then the mixing proportion of the cold fluid F1 and the hot fluid F2 flowing into the inner cavity of the valve body 1 is regulated, so that the temperature control of the mixed fluid F3 is realized; the present invention is not limited to a specific type of thermostatic assembly 2, but the opening degree of the first water inlet 13 and the second water inlet 14 can be adjusted by the temperature sensing element of the thermostatic assembly 2 to generate the adaptability change of thermal expansion and contraction for the temperature of the mixed fluid F3, which belongs to the thermostatic assembly 2 of the present invention, the detailed thermostatic assembly can refer to US6085984, US20090314844A1, US20180364745A1, EP1235129A1, the above embodiment further discloses that the first water inlet, the second water inlet and the water outlet of the valve body can be not only arranged on the outer side wall of the valve body, but also arranged at the bottom of the valve body, and only the specific structure of the thermostatic assembly 2 of the present embodiment is briefly described below:
As shown in fig. 1, 7 and 8, the constant temperature assembly 2 comprises a valve core screw rod 21, a sliding sleeve 22, a temperature sensing rod 23, a temperature sensing rod connecting seat 24, a fixed seat 25, a movable sleeve 26 and a first spring 27 from top to bottom, wherein the valve core screw rod 21 is sleeved in the sleeve 12, a knob end 211 of the valve core screw rod 21 extends out of the sleeve 12 and is axially fixed through a C-shaped clamping ring 29, the lower end of the valve core screw rod 21 is in threaded connection with the sliding sleeve 22, and the sliding sleeve 22 is driven to axially displace along the sleeve 12 by rotating the valve core screw rod 21; a second spring 28 is arranged between the temperature sensing rod connecting seat 24 and the fixed seat 25, and the temperature sensing rod connecting seat 24 and the fixed seat 25 are connected in a reverse buckling manner through clamping claws 241 at the bottom of the temperature sensing rod connecting seat 24 and clamping grooves 251 formed on the inner side wall of the fixed seat 25, so that a certain movable stroke is formed between the temperature sensing rod connecting seat 24 and the fixed seat 25 along the axial position of the sleeve 12 on the premise of overcoming the elastic force of the second spring 28; the movable sleeve 26 is sleeved on the outer side walls of the temperature sensing rod connecting seat and the fixed seat; one end of the first spring 27 is abutted against the bottom of the clamping jaw 241 at the bottom of the temperature sensing rod connecting seat 24, the other end is abutted against the end face of the valve core water stop seat 18, and the valve core water stop seat 18 is fixed at the bottom of the valve body 1 through threaded connection; one end of the temperature sensing rod 23 is limited by the temperature sensing rod connecting seat 24, and the other end of the temperature sensing rod is movably propped against the bottom of the sliding sleeve 22. When the hot fluid F2 flowing into the valve body 1 is excessive, the temperature of the mixed fluid F3 is too high, at this time, the temperature sensing rod 23 is heated and expanded to drive the temperature sensing rod connecting seat 24 and the fixed seat 25 to synchronously move downwards, and then the axial positions of the movable sleeve 26 and the inner cavity wall of the valve body 1 are changed, so that the opening degrees of the first water inlet 13 and the second water inlet 14 are changed, the opening degree of the first water inlet 13 for flowing the cold fluid F1 is increased, the opening degree of the second water inlet 14 for flowing the heat supply fluid F2 is decreased, and the temperature of the mixed fluid F3 formed in the inner cavity of the valve body 1 is adjusted.
As shown in fig. 1, a flow control unit 3 is provided on a first support 11 of a valve body 1, and the flow control unit 3 includes a ceramic stator 31, a ceramic rotor 32, and a rotor 33; the ceramic stator 31, the ceramic rotor 32 and the rotating sleeve 33 are provided with a first through hole A which penetrates mutually, and the ceramic stator 31, the ceramic rotor 32 and the rotating sleeve 33 are sleeved outside the sleeve 12 from bottom to top in sequence by the first through hole A; as shown in fig. 6, the ceramic stator 31 is provided with a water through slot 311, the water through slot 311 is hollow in which upper and lower end surfaces are mutually penetrated, the water through slot 311 is split into a first water through slot 311a and a second water through slot 311b which are mutually separated, wherein the first water through slot 311a is mutually communicated with the first water channel I, and the second water through slot 311b is mutually communicated with the second water channel II; meanwhile, a plurality of first fixing clamping grooves 313 matched with the first supporting part 11 of the valve body 1 are arranged at the bottom or the side wall of the ceramic stator 31, and the ceramic stator 31 and the valve body 1 cannot generate relative rotation by virtue of the positioning and matching of the first fixing clamping grooves 313 and the first clamping points 112 corresponding to the first supporting part 11 of the valve body 1; since the ceramic moving plate 32 and the ceramic fixed plate 31 are in surface contact, an oil storage tank 312 is preferably further arranged on one side end surface of the ceramic fixed plate 31 facing the ceramic moving plate 32, and lubricating grease is injected into the oil storage tank 312, so that the relative rotation between the ceramic moving plate 32 and the ceramic fixed plate 31 is smoother; in order to avoid the mixed fluid F3 from oozing out from the fit gap between the ceramic stator 31 and the first support portion 11, a water stop washer 314 is further added between the ceramic stator 31 and the first support portion 11.
As shown in fig. 5, the end face of the ceramic moving plate 32 facing the ceramic stator 31 has a flow passage 321 and a sealing surface 322, the flow passage 321 provided in this embodiment is an arc-shaped groove 321 with a depth gradually changed from shallow to deep, the arc-shaped groove 321 does not allow the upper and lower end faces of the ceramic moving plate 32 to penetrate each other, and in order to further ensure the strength of the arc-shaped groove 321, a plurality of reinforcing ribs 324 are provided in the arc-shaped groove of the ceramic moving plate 32; the thickness of the bottom wall thickness of the arc-shaped groove 321 is not completely the same as the thickness of the arc-shaped groove 321 is from shallow to deep, and the ceramic moving plate 32 is pressed by dry powder and sintered, so that if the thickness of the wall of the ceramic bottom is not uniform, the ceramic bottom is not compact enough at the thicker part of the wall thickness, and a slight water seepage problem is easily generated, and therefore, the opposite end surfaces positioned at the shallow part of the arc-shaped groove 321 are preferably provided with arc-shaped sinking grooves 325 with depth from deep to shallow, so that the thickness of the bottom wall thickness of the arc-shaped groove 321 is ensured to be uniform; the second fixing slot 323 is disposed on the outer side or the top end surface of the ceramic moving plate 32, the second clamping point 3342 is disposed on the position of the rotating sleeve 33 opposite to the second fixing slot 323, and the second clamping point is in clamping fit with the second fixing slot 323 of the ceramic moving plate 32, so as to ensure that no relative rotation occurs between the rotating sleeve 33 and the ceramic moving plate 32, it should be noted that if some sealing members are added to make the ceramic moving plate 32 and the rotating sleeve 33 considered as a whole, it is not necessarily required that the upper and lower end surfaces of the arc-shaped slot 321 of the ceramic moving plate 32 cannot penetrate each other, and in fact, part of the through-flow channel 321 is located in the ceramic moving plate 32, and part of the through-flow channel is located in the through-flow channel formed between the hollow portion of the arc-shaped slot 321 of the ceramic moving plate 32 and the rotating sleeve 33.
As shown in fig. 4, the rotating sleeve 33 has a small diameter end 333 and a large diameter end 334 from top to bottom, and the small diameter end 333 has a limiting rack 3331 for preventing the idle rotation of the handle; the bottom of the outer sidewall of the large diameter end 334 is provided with a first limiting point 331 and a second limiting point 332 which are angularly spaced, a short sidewall 3341 is formed between the first limiting point 331 and the second limiting point 332 on the sidewall of the large diameter end 334, and a plurality of second clamping points 3342 are arranged on the bottom of the large diameter end 334; the outer diameter end of the first supporting portion 11 of the valve body 1 forms a flange 114, the flange 114 extends upwards along the side wall of the outer diameter end to form a limit post 113, the side wall of the first supporting portion 11 forms two fastening points 115, the rotating sleeve 33 is rotatably sleeved at the outer diameter end of the first supporting portion 11, the first limit point 331 and the second limit point 332 of the rotating sleeve abut against the flange 114 of the first supporting portion 11, the bottom of the short side wall 3341 abuts against the top of the limit post 113, and meanwhile, in order to ensure that the rotating sleeve 33 cannot generate axial displacement with the outer diameter end of the first supporting portion 11, an annular groove can be formed at the outer diameter end of the first supporting portion 11, a plurality of radial protruding blocks can be formed on the inner side wall of the rotating sleeve 33, and the radial protruding blocks are nested in the annular groove, so that the rotating sleeve can only rotate along the central axis of the first supporting portion 11; or, as shown in fig. 3, the top of the rotating sleeve 33 is additionally provided with a blocking edge 341, the outer side wall of the blocking edge 341 is respectively provided with two second through holes B opposite to the two fastening points 115 of the first supporting part 11 and a notch 342 for inserting the limiting post 113, the gland 34 is sleeved at the large diameter end 334 of the rotating sleeve 33, and the two through holes of the gland 34 are conveniently fastened and matched with the two fastening points 115 of the first supporting seat by means of the mutual positioning and matching of the notch 342 and the limiting post 113 of the first supporting part 11, so that the blocking edge 341 of the gland 34 is ensured to be opposite to the top end face of the large diameter end 334 of the rotating sleeve 33, and in order to prevent the rotation friction between the gland 34 and the rotating sleeve 33, a wear-resistant gasket 343 is arranged between the blocking edge 341 of the gland 34 and the top end face of the large diameter end 334 of the rotating sleeve 33.
The outer side wall of the valve body 1 is provided with a third clamping point 116 which is used for being mutually nested and matched with the water outlet body shell, and the third clamping point 116 is arranged on the outer side wall of the first supporting part 11 in the embodiment.
The working principle of the constant temperature valve core is that the temperature of mixed water flow F3 in the constant temperature valve core is adjusted by rotating a knob end 211 at the top of a valve core screw rod 21; by rotating the rotating sleeve 33, the rotating sleeve 33 drives the ceramic moving plate 32 to axially rotate relative to the ceramic moving plate 31, so that the flow rate of the mixed fluid F3 flowing through the water passing groove 311 and the water passing channel 321 is changed, the mixed water F3 flows into the first water passing groove 311a of the ceramic moving plate 31 through the first water passing channel I, flows into the inner cavity of the water passing channel 321 of the ceramic moving plate 32, and flows into the second water passing channel II when the water passing channel 321 of the ceramic moving plate 32 and the second water passing channel 311b of the ceramic moving plate 31 are communicated with each other, as shown in fig. 7, the mixed water F3 flows into the second water passing channel II and finally flows out from the water outlet 15. The arc-shaped groove 321 of the ceramic moving plate 32 can accommodate the F3 water flow of the mixed water flow by rotating the angle of the ceramic moving plate 32, so that the flow is regulated, and when the sealing surface 322 of the ceramic moving plate 32 and the second water passing groove 311b of the ceramic moving plate 31 are mutually overlapped, the constant-temperature valve core 100 can realize water stop.
In order to achieve the second object, the present invention further discloses a thermostatic faucet, as shown in fig. 9-11, the thermostatic faucet includes a housing 200, a handle 300, a locking sleeve 400, a temperature control 500, and any thermostatic cartridge 100 described above, the cavity of the housing 200 is hollow, the bottom end is closed, the top has an open end, the middle of the housing 200 has a first water inlet channel 201 into which a cooling fluid (F1) flows, a second water inlet channel 202 into which a heating fluid (F2) flows, and at least one water outlet channel 203 into which a mixing fluid (F3) flows, the embodiment has two water outlet channels 203 through which mixing fluid (F3) flows, the thermostatic cartridge 100 is sleeved in the cavity of the housing 200, the first water inlet channel 201 is mutually communicated with the first water inlet 13 of the thermostatic cartridge 100, the two water inlet channels 202 are mutually communicated with the second water inlet 14 of the thermostatic cartridge 100, the two water outlet channels 203 of the housing 200 are mutually communicated with the water outlet 15, and the two water outlet channels 203 are mutually communicated with the water outlet 15 are mutually easily, and a plurality of water outlet channels are arranged in the housing 200 and are arranged in the housing 100, and the first water inlet channel 13 and the second water inlet 14 of the thermostatic cartridge 100 are not matched with the thermostatic cartridge 100, and the water outlet valve 100 is arranged in the housing 200; the locking sleeve 400 is sleeved at the upper end of the constant temperature valve core 100, in this embodiment, the locking sleeve 400 is sleeved above the pressing sleeve 34, the outer diameter of the locking sleeve 400 is provided with external threads, the inner side wall of the opening end of the shell 100 opposite to the external threads is provided with internal threads, and the constant temperature valve core 100 is fixed in the inner cavity of the shell 100 by the threaded connection between the locking sleeve 400 and the shell 100; the handle 300 is sleeved on the outer side of the rotating sleeve 33, a plurality of gear shaping 301 are formed on the inner cavity wall of the handle 300, a plurality of limiting racks 3331 are formed on the outer side wall of the rotating sleeve 33, and linkage fit between the handle 300 and the rotating sleeve 33 is ensured through mutual engagement of the gear shaping 301 and the limiting racks 3331, so that the handle 300 and the rotating sleeve 33 are prevented from rotating relatively; meanwhile, in order to enable the handle 300 to be sleeved on the outer side of the rotating sleeve 33 along a fixed direction, a positioning structure is arranged on at least one side matching surface of the rotating sleeve 33 and the handle 300, the specific positioning structure is that a limiting boss 302 is arranged on the inner cavity wall of the handle 300, a positioning concave surface 3332 is arranged on the rotating sleeve 33 opposite to the limiting boss 302, and the handle 300 can be inserted into and sleeved on the outer side of the rotating sleeve 33 along one fixed direction of the rotating sleeve 33 through the mutual matching of the limiting boss 302 and the positioning concave surface 3332, so that the assembly is convenient; meanwhile, in order to ensure that the handle 300 is not easy to pull out from the rotating sleeve 33, two extending section buckles 3333 are formed by extending upwards on the outer side wall of the rotating sleeve 33, the top end face of the handle 300 is provided with two fixing holes 303, the handle 300 is sleeved on the outer side of the rotating sleeve 33, and the extending section buckles 3333 of the rotating sleeve 33 penetrate through the fixing holes 303 of the handle 300 and are reversely buckled on the top end face of the handle 300; meanwhile, in order to facilitate the extension section buckle 3333 to pass through the fixing hole 303, the fixing hole 303 is preferably designed as a square hole, the inner hole of the fixing hole is provided with a chamfer, and the top of the extension section buckle 3333 is provided with a guide inclined surface 33331; the temperature regulation control 500 is fixedly arranged at the top knob end of the constant temperature assembly 2, and no physical connection relation exists between the temperature regulation control 500 and the handle 300, so that any one of the components is ensured not to interfere with each other during working.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (14)

1. A thermostatic cartridge (100), characterized in that it comprises:
The valve comprises a valve body (1), wherein the inner cavity of the valve body (1) is hollow, a first supporting part (11) is arranged at the top of the valve body, the first supporting part (11) is provided with a plurality of water passing through holes (111), and a sleeve (12) extends upwards in the middle of the first supporting part (11); the outer side wall or the bottom of the valve body (1) is provided with a first water inlet (13) for cold fluid (F1) to flow in, a second water inlet (14) for heat fluid (F2) to flow in and a water outlet (15) for mixed fluid (F3) to flow out, and a first water passing channel (I) and a second water passing channel (II) for mixed fluid (F3) to flow in and separate from each other are formed in a cavity of the valve body (1), wherein the first water passing channel (I) is communicated with the first water inlet (13) and the second water inlet (14), and the second water passing channel (II) is communicated with the water outlet (15);
The constant temperature assembly (2) is sleeved in the sleeve (12) of the valve body (1), the opening degree of the first water inlet (13) and the opening degree of the second water inlet (14) are regulated by the constant temperature assembly (2), and then the mixing proportion of cold fluid (F1) and hot fluid (F2) flowing into the inner cavity of the valve body (1) is regulated, so that the temperature control of the mixed fluid (F3) is realized;
The valve further comprises a flow control assembly (3), wherein the flow control assembly (3) is arranged on a first supporting part (11) of the valve body (1) and comprises a ceramic stator (31), a ceramic rotor (32) and a rotating sleeve (33); the ceramic stator (31), the ceramic rotor (32) and the rotating sleeve (33) are provided with a first through hole (A) penetrating each other, and the ceramic stator (31), the ceramic rotor (32) and the rotating sleeve (33) are sleeved outside the sleeve (12) from bottom to top by the first through hole (A); the ceramic stator (31) is provided with a water passing groove (311), one side end surface of the ceramic rotor (32) facing the ceramic stator (31) is provided with a flow passage (321) and a sealing surface (322), the ceramic rotor (32) is in surface contact with the ceramic stator (31), the rotating sleeve (33) drives the ceramic rotor (32) to axially rotate relative to the ceramic stator (31), and then the flow of mixed fluid (F3) flowing through the water passing groove (311) and the flow passage (321) is changed;
The mixed fluid (F3) flows into the water through groove (311) of the ceramic stator (31) and the water through channel (321) of the ceramic rotor (32) through the first water through channel (I) by the thermostatic valve core (100), then flows into the second water through channel (II), and finally flows out of the water outlet (15).
2. A thermostatic cartridge (100) as claimed in claim 1, characterized in that: the water through groove (311) of the ceramic stator (31) is hollow in an upper end surface and a lower end surface, an oil storage groove (312) is further formed in one side end surface facing the ceramic rotor (32), a plurality of first fixing clamping grooves (313) matched with the first supporting parts (11) of the valve body (1) are formed in the bottom or the side wall of the ceramic stator (31), and the first clamping points (112) corresponding to the first supporting parts (11) of the valve body (1) are matched in a positioning mode through the fixing clamping grooves.
3. A thermostatic cartridge (100) as claimed in claim 2, characterized in that: a water stop washer (314) is arranged between the ceramic stator (31) and the first supporting part (11).
4. A thermostatic cartridge (100) as claimed in claim 1, characterized in that: the flow passage (321) of the ceramic moving plate (32) is an arc-shaped groove with the depth gradually changed from shallow to deep, the arc-shaped groove does not enable the upper end face and the lower end face of the ceramic moving plate (32) to mutually penetrate, a second fixing clamping groove (323) is formed in the outer side portion or the top end face of the ceramic moving plate (32), a second clamping point is formed in the position, opposite to the second fixing clamping groove (323), of the rotating sleeve (33), and the rotating sleeve is fixedly matched with the second fixing clamping groove (323) of the ceramic moving plate (32) in a clamping mode, so that relative rotation between the rotating sleeve (33) and the ceramic moving plate (32) is prevented.
5. A thermostatic cartridge (100) according to claim 3, characterized in that: the arc-shaped groove of the ceramic moving plate (32) is internally provided with a plurality of reinforcing ribs (324), and the opposite end surfaces positioned at the shallow part of the arc-shaped groove are provided with arc-shaped sinking grooves (325) with depth from deep to shallow, so that the thickness uniformity of the wall thickness at the bottom of the arc-shaped groove is ensured.
6. A thermostatic cartridge (100) as claimed in claim 1, characterized in that: the outer side wall of the first supporting part (11) of the valve body (1) further comprises a limiting column (113), a first limiting point (331) and a second limiting point (332) which are at a certain angle interval are arranged at the outer diameter end of the bottom of the rotating sleeve (33), and the rotating sleeve (33) is in abutting fit with the limiting column (113) of the first supporting part (11) respectively through the first limiting point (331) and the second limiting point (332) when rotating, so that the rotating sleeve (33) is limited in rotating angle range.
7. A thermostatic cartridge (100) as claimed in claim 1, characterized in that: the rotary sleeve (33) is sleeved at the outer diameter end of the rotary sleeve (33) and is fixedly connected with the first supporting part (11) of the valve body (1), so that the rotary sleeve (33) can rotate relatively to the gland (34) and cannot be pulled out.
8. A thermostatic cartridge (100) as claimed in claim 7, characterized in that: the rotating sleeve (33) is provided with a small-diameter end (333) and a large-diameter end (334) from top to bottom, and the small-diameter end (333) is provided with a limiting rack (3331) for preventing the handle from idling; the bottom of the outer side wall of the large-diameter end (334) is provided with a first limiting point (331) and a second limiting point (332) which are at a certain angle interval, and a short side wall (3341) is formed between the first limiting point (331) and the second limiting point (332) on the side wall of the large-diameter end (334); the outer diameter end of the first supporting part (11) of the valve body (1) forms a flange (114), a limit post (113) is formed by extending upwards from the flange (114) along the side wall of the outer diameter end, two buckling points (115) are formed on the side wall of the first supporting part (11), the rotating sleeve (33) is sleeved at the outer diameter end of the first supporting part (11), the first limit point (331) and the second limit point (332) are propped against the flange (114) of the first supporting part (11), and the bottom of the short side wall (3341) and the top of the limit post (113) are propped against each other; the top of gland (34) have keep off along (341), should keep off along the lateral wall of (341) be equipped with two second through-holes (B) and be used for inserting limit post (113) relative with two buckle points (115) of first supporting part (11) respectively, gland (34) cover is arranged in big footpath end (334) of rotating cover (33) to through the mutual locate fit of limit post (113) of notch (342) and first supporting part (11), make things convenient for two through-holes of gland (34) and two buckle points (115) of first bearing to mutually buckle the cooperation, ensure that keep off along (341) of gland (34) and big footpath end (334) top terminal surface of rotating cover (33) are relative.
9. A thermostatic cartridge (100) as claimed in claim 1, characterized in that: the outer side wall of the valve body (1) is provided with a third clamping point (116) which is used for being mutually nested and matched with the water outlet body shell.
10. A thermostatic cartridge (100) as claimed in claim 8, characterized in that: a wear-resistant gasket (343) is arranged between the blocking edge (341) of the gland (34) and the top end surface of the large-diameter end (334) of the rotating sleeve (33).
11. A constant temperature faucet comprising a shell (200), a handle (300) and a temperature regulation control (500), wherein the constant temperature faucet is characterized in that the constant temperature valve core (100) according to any one of the preceding claims is assembled in the shell (200), the handle (300) is fixedly connected with a rotating sleeve (33) and used for controlling a flow control assembly (3), and the temperature regulation control (500) is used for controlling the constant temperature assembly (2).
12. A thermostatic faucet according to claim 11 wherein: the inner cavity of the shell (200) is hollow, the bottom end of the shell is closed, the top of the shell is provided with an open end, and the middle of the shell (200) is respectively provided with a first water inlet passage (201) for inflow of cold fluid (F1), a second water inlet passage (202) for inflow of heat supply fluid (F2) and at least one water outlet passage (203) for outflow of mixed fluid (F3) along the radial direction; the constant-temperature valve comprises a first water inlet passage (201) communicated with a first water inlet (13) of a constant-temperature valve core (100), a second water inlet passage (202) communicated with a second water inlet (14) of the constant-temperature valve core (100), a locking sleeve (400), a handle (300) and a locking sleeve (33), wherein the locking sleeve (400) is sleeved at the upper end of the constant-temperature valve core (100), the outer diameter of the locking sleeve (400) is provided with an external thread, the inner side wall of the opening end of a shell (200) opposite to the external thread is provided with an internal thread, the constant-temperature valve core (100) is fixed in the inner cavity of the shell (200) by virtue of the threaded connection between the locking sleeve (400) and the shell (200), the handle (300) is sleeved at the outer side of the rotating sleeve (33), and relative rotation between the handle (300) and the rotating sleeve (33) is not generated; the temperature regulation control (500) is fixedly arranged at the top knob end of the constant temperature assembly (2), and no physical connection relation exists between the temperature regulation control (500) and the handle (300).
13. A thermostatic faucet according to claim 12 wherein: the rotating sleeve (33) and at least one side of the handle (300) are provided with a positioning structure, and the handle (300) can be inserted and sleeved outside the rotating sleeve (33) along one fixed direction of the rotating sleeve (33) by the positioning structure.
14. A thermostatic faucet according to claim 12 wherein: the handle (300) fixing hole (303) is a square hole, and the inner hole of the handle is provided with a chamfer; the top of the extension section buckle (3333) is provided with a guide inclined plane (33331).
CN201910096759.7A 2019-01-31 2019-01-31 Improved constant-temperature valve core and constant-temperature faucet Active CN109695744B (en)

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CN201910096759.7A CN109695744B (en) 2019-01-31 2019-01-31 Improved constant-temperature valve core and constant-temperature faucet
GB1918799.6A GB2582051B (en) 2019-01-31 2019-12-19 An improved thermostatic valve and a thermostatic faucet

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CN114687690B (en) * 2022-03-31 2024-03-29 中海石油(中国)有限公司 Slip setting mechanism and downhole throttler comprising same

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GB201918799D0 (en) 2020-02-05

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