CN111561585A - Electric cold and hot water constant temperature water mixing valve core - Google Patents
Electric cold and hot water constant temperature water mixing valve core Download PDFInfo
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- CN111561585A CN111561585A CN202010447729.9A CN202010447729A CN111561585A CN 111561585 A CN111561585 A CN 111561585A CN 202010447729 A CN202010447729 A CN 202010447729A CN 111561585 A CN111561585 A CN 111561585A
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- valve core
- sliding block
- hot water
- rotating frame
- ceramic plate
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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
- F16K11/072—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 closure members
- F16K11/074—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 closure members with flat sealing faces
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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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
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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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
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
Abstract
The invention discloses an electric cold and hot water constant-temperature water mixing valve core, which comprises an upper part and a lower part, wherein the upper part is a control and driving part, the lower part is a valve core part, and the two parts are connected and fastened through a spiral ring after being spliced; the valve core part comprises a valve core shell and a valve core bottom cover; the adjusting component for adjusting the temperature of cold water and hot water is arranged in the valve core shell; the control and drive part comprises an upper cover and a lower shell, the control main board, the drive motor and the adapter circuit board are arranged in the lower shell, and the drive motor is connected with the drive gear and is connected with the adjusting component in the valve core shell through the drive gear. The 2 motors respectively drive the 1 regulating slide blocks to control the sizes of the cold water inlet and the hot water inlet, so that the sizes of the cold water inlet and the hot water inlet can be simultaneously regulated, the control is flexible, and the regulating speed is higher.
Description
Technical Field
The invention relates to the technical field of valve cores, in particular to an electric cold and hot water constant-temperature water mixing valve core.
Background
With the improvement of living conditions of people, hot water for washing is supplied to hotels, hotels and common families, but people cannot directly use the hot water because the hot water is too high in temperature, and the hot water and cold water are required to be mixed according to a certain proportion and are adjusted into warm water with proper temperature for use. The mixing of cold water and hot water just must be used to the muddy water valve of cold water, but at present most muddy water valve of cold water, all adjust leaving water temperature and water yield through the size of manual rotation and breaking handle governing valve in-core inside cold water inlet and hot water inlet off with the fingers and thumb, and the size of adjusting back cold water and hot water inlet remains unchanged throughout. Because the pressure and the temperature of the cold water and the hot water are fluctuated frequently, the temperature of the warm water passing through the water mixing valve is changed frequently, the cold water and the hot water are ignored, and great troubles are brought to the use of people.
Although the technical scheme of the mechanical constant-temperature water mixing valve is put into use in the current market, the piston is mechanically pushed to move by expanding with heat and contracting with cold after the temperature of the outlet water is changed by the thermal elastomer, and the piston moves to adjust the sizes of the cold water inlet and the hot water inlet, so that the temperature is adjusted. Because the change of the outlet water temperature is completely transmitted to the thermal elastomer for a certain time, the technology can not quickly respond to the change of the water temperature, the regulation reaction is slow, the regulation precision is low, and the better use experience can not be achieved.
The manual water mixing valve and the valve core used in the constant-temperature water mixing valve are not uniform in specification and size, and a user wants to upgrade the manual water mixing valve into the constant-temperature water mixing valve and needs to replace the whole water mixing valve, so that waste is caused.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides an electric cold and hot water constant-temperature water mixing valve core.
The technical scheme adopted by the invention for solving the technical problems is as follows: the electric cold and hot water constant-temperature water mixing valve core comprises an upper part and a lower part, wherein the upper part is a control and driving part, the lower part is a valve core part, and the two parts are connected and fastened through a spiral ring after being spliced; the valve core part comprises a valve core shell and a valve core bottom cover; an adjusting component for adjusting the amount of mixed water of cold water and hot water is arranged in the valve core shell; the control and drive part comprises an upper cover and a lower shell, the control main board, the drive motor and the adapter circuit board are arranged in the lower shell, and the drive motor is connected with the drive gear and drives the adjusting part in the valve core shell through the drive gear.
Furthermore, the valve core shell is a hollow cylinder, the valve core bottom cover is a circular cover plate, the middle part of the valve core is provided with 3 through holes, and two sides of the valve core are respectively provided with an upward clamping pin; the valve core bottom cover is arranged at the lower opening of the valve core shell and is clamped on the valve core shell through two clamping pins; the front side and the rear side of the valve core bottom cover are respectively provided with a raised limiting block, the two limiting blocks have different width sizes and are respectively inserted into two grooves arranged on the lower edge of the valve core shell; and 3 through holes in the middle of the valve core bottom cover are respectively provided with a rubber sleeve.
Furthermore, the adjusting component comprises a gear retainer, two intermediate gears, a left rotating frame, a left sliding block, a right rotating frame, a right sliding block, an upper ceramic piece and a lower ceramic piece; the lower ceramic plate is arranged at the upper part of the valve core bottom cover; the upper ceramic plate is arranged on the upper part of the lower ceramic plate, and the left sliding block and the right sliding block are arranged on the upper part of the upper ceramic plate and can adjust the amount of mixed water of cold water and hot water in a sliding manner on the upper ceramic plate; the left rotating frame and the right rotating frame are respectively clamped on the left sliding block and the right sliding block, the two intermediate gears are installed through the gear retainer and are respectively meshed with the teeth on the inner walls of the left rotating frame and the right rotating frame, and the two intermediate gears are also respectively meshed with the two driving gears.
Furthermore, the upper end surface and the bottom surface of the lower ceramic sheet are smooth planes, and two parallel small planes are arranged on two sides of the lower ceramic sheet; the bottom surface of the lower ceramic plate is provided with 3 round counter bores, and the middle parts of the counter bores respectively correspond to a cold water inlet hole, a hot water inlet hole and a warm water outlet hole; the upper end surface of the lower ceramic plate is provided with 3 water channel grooves which are respectively communicated with the cold water inlet hole, the hot water inlet hole and the warm water outlet hole; 3 grooves are distributed on the outer ring of the lower ceramic chip, and 3 bosses arranged on the valve core bottom cover are respectively inserted into the 3 grooves; a cold water inlet hole, a hot water inlet hole and a warm water outlet hole on the lower ceramic plate are respectively aligned with 3 through holes on the valve core bottom cover; the front ends of the 3 rubber sleeves are respectively inserted into the counter bores of the cold water inlet hole, the hot water inlet hole and the warm water outlet hole on the ceramic chip, and the upper end faces of the rubber sleeves are attached to the bottom faces of the counter bores.
Furthermore, the upper end surface and the bottom surface of the upper ceramic plate are smooth planes, the bottom surface of the upper ceramic plate and the upper end surface of the lower ceramic plate are jointed, a hot water port, a hot water mixing port, a cold water mixing port and a temperature sensor mounting hole are processed on the upper end surface of the upper ceramic plate, 2 round counter bores are also processed in the middle of the upper ceramic plate, and a hot water channel groove, a cold water channel groove and a warm water channel groove are processed on the bottom surface of the upper ceramic plate; the 3 water channel grooves are aligned with the 3 water channel grooves on the upper end face of the lower ceramic sheet respectively to form closed water channels which are respectively a hot water channel, a cold water channel and a warm water channel; the hot water channel groove on the upper ceramic plate is communicated with a hot water port on the upper end surface of the upper ceramic plate, the cold water channel groove is communicated with a cold water port on the upper end surface of the upper ceramic plate, and the hot water channel groove is respectively communicated with a hot water mixing port and a cold water mixing port on the upper end surface of the upper ceramic plate; a round hole is formed in the middle of the warm water channel groove and leads to the upper end face of the upper ceramic plate, a temperature sensor for detecting the temperature of warm water in real time is fixed in the round hole, and the end of the temperature sensor extends into the warm water channel.
Furthermore, the left sliding block and the right sliding block are two semicircular ceramic blocks; the upper end surface and the bottom surface are smooth planes, the bottom surfaces of the left sliding block and the right sliding block are also provided with water channel grooves, the left sliding block covers the hot water port and the hot water mixing port on the upper end surface of the upper ceramic sheet, and the water channel grooves on the bottom surface can fully communicate the hot water port and the hot water mixing port; the right sliding block covers the cold water port and the cold water mixing port on the upper end face of the upper ceramic piece, the water channel groove on the bottom surface of the right sliding block can fully communicate the cold water port with the cold water mixing port, the left sliding block and the right sliding block can slide on the upper ceramic piece, and the pore diameter of the water channel groove on the bottom surface of the left sliding block, which is communicated with the hot water port on the upper end face of the upper ceramic piece, is gradually reduced when the left sliding block slides until all the hot water holes are not communicated with the water channel groove; when the right sliding block slides, the aperture of the water channel groove on the bottom surface of the right sliding block communicated with the cold water port on the upper end surface of the upper ceramic plate gradually decreases until all the cold water holes are not communicated with the water channel groove.
Furthermore, the left rotating frame and the right rotating frame are two semicircular brackets, grooves are formed in the bottoms of the semicircular brackets, and the shapes of the grooves correspond to those of the left sliding block and the right sliding block; the left sliding block and the right sliding block are respectively arranged in grooves at the bottoms of the left rotating frame and the right rotating frame, one side surface of each groove is also provided with a limiting rib, and the limiting ribs are respectively inserted into the grooves arranged at the edges of the left sliding block and the right sliding block; the upper surfaces of the left rotating frame and the right rotating frame are semicircular vertical walls, and teeth are distributed on the inner sides of the vertical walls; the centers of the left rotating frame and the right rotating frame are provided with a central short shaft, the lower ends of the central short shafts are respectively inserted into 2 circular counter bores in the middle of the upper end face of the upper ceramic wafer, the upper ends of the central short shafts are respectively inserted into two circular holes in the bottom of the gear retainer, and the left rotating frame and the right rotating frame respectively drive the left sliding block and the right sliding block to rotate around respective central shafts.
Furthermore, the left side and the right side below the gear retainer are respectively provided with a section of small short shaft, and the small short shafts are respectively provided with an intermediate gear; the middle gears are sleeved on the small short shaft in a hollow mode, the modulus of the two middle gears is the same as that of the teeth on the vertical walls of the left rotating frame and the right rotating frame, the two middle gears are meshed with the teeth on the vertical walls of the left rotating frame and the right rotating frame respectively, and the 2 middle gears drive the left rotating frame and the right rotating frame to rotate respectively.
Furthermore, a return-to-zero circuit board is installed on the gear retainer, a detection sensor is respectively arranged on the left side and the right side of the return-to-zero circuit board, and when the left rotating frame drives the left sliding block to rotate to the position where the hot water channel is completely closed, a detection switch on the left side of the return-to-zero circuit board is triggered by the left rotating frame; when the right rotating frame drives the right sliding block to rotate to the position where the cold water channel is completely closed, the detection switch on the right side of the zero returning circuit board is triggered by the right rotating frame; the zeroing circuit board is also provided with 2 leads connected with a temperature sensor arranged on the upper ceramic plate, and the other side of the zeroing circuit board is also provided with a pin header.
Furthermore, a control main board and a battery are installed inside the lower shell; the control main board is provided with a display screen, an interface and a control driving chip; the upper cover is arranged on the lower shell, the bottom of the lower shell is a section of cylinder, a motor support and driving motors are arranged in the cylinder, the two driving motors are arranged side by side, the rear parts of the driving motors are provided with encoders, and the front parts of the two driving motors are inserted into the motor support; the front parts of the two driving motors are respectively provided with an output shaft, and the output shafts penetrate through the two circular through holes in the front parts of the motor brackets and are connected with the driving gear; the driving gears are respectively meshed with the two intermediate gears.
In summary, the technical scheme of the invention has the following beneficial effects:
1. the dimension and the specification of the valve core in the common manual water mixing valve are completely consistent, the mounting and fastening mode of the valve core is also in threaded connection with the common manual water mixing valve, and a user can finish upgrading only by replacing the valve core without replacing the whole water mixing valve.
2. The left sliding block, the right sliding block, the upper ceramic piece and the lower ceramic piece in the valve core are finely processed by ceramics, so that the valve core is high in wear resistance and long in service life.
3. Drive 1 sliding block respectively by 2 motors and control the size of cold water inlet and hot water inlet, make the size of cold water inlet and hot water inlet adjust simultaneously, control is nimble, governing speed is faster.
4. The water temperature is measured by using the high-precision temperature sensor, the measurement sensitivity and precision are higher, the control host controls the two motors to rotate in real time according to the feedback of the temperature sensor, the proportion of the cold water and the hot water mixed with water is adjusted, automatic closed-loop control is realized, and the stability of the water temperature of the outlet water is ensured.
5. 2 motors that drive 2 sliding blocks are direct current gear motor who has the encoder, but encoder accurate detection motor rotation direction and angle.
6. The valve core is internally provided with a position detection sensor which detects the starting positions of the left sliding block and the right sliding block and ensures the accuracy of the positions of the left sliding block and the right sliding block.
7. The touch control mode replaces the traditional manual knob operation, and the user can use the touch control device more comfortably and conveniently.
8. The liquid crystal display displays data such as set water temperature, current water temperature, water accumulation and the like, and a user can conveniently acquire and know information.
9. The control host automatically enters an ultra-low power consumption standby mode when not in use, so that the energy consumption is saved, and the standby time is long.
10. Adopt waterproof design, the shell junction all is equipped with sealing washer and sealed pad, avoids having water to get into in the use, causes electrical damage.
Drawings
Fig. 1 is an overall outline structural view of the present invention.
Fig. 2 is an exploded view of fig. 1 of the present invention.
Fig. 3 is a sectional view of the whole.
Fig. 4 is a cross-sectional view of the upper half.
Fig. 5 is an exploded view of the lower half.
In the figure:
1-upper cover, 2-lower shell, 3-cover ring, 4-upper spiral ring, 5-lower spiral ring, 6-pressing spiral ring, 7-sealing gasket, 8-valve core shell, 9-valve core bottom cover, 10-rubber sleeve, 11-motor support, 12-driving gear, 13-rubber ring, 14-display screen, 15-control mainboard, 16-battery, 17-driving motor, 18-switching circuit board, 19-gear retainer, 20-zero circuit board, 21-middle gear, 22-left rotating frame, 23-right rotating frame, 24-left sliding block, 25-right sliding block, 26-temperature sensor, 27-upper ceramic plate, 28-lower ceramic plate and 29-sealing ring.
Detailed Description
The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate embodiments of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, an electric cold and hot water constant temperature water mixing valve core is divided into an upper part and a lower part, wherein the upper part is a control and driving part, the lower part is a valve core part, and the two parts are spliced together and then are connected and fastened through a spiral ring. The overall dimension and the water inlet, the delivery port position of case and ordinary manual hot and cold water mix the water valve core same completely, both can use in electronic hot and cold water mixes the water valve, can directly replace the case in the ordinary manual hot and cold water mixes the water valve again, pack into the casing of ordinary manual hot and cold water mixing water valve, upgrade the transformation to ordinary manual hot and cold water mixing water valve.
As shown in fig. 3 and 5, the spool portion includes a spool housing 8 and a spool bottom cover 9. The valve core shell 8 is a hollow cylinder, the diameter of the upper half part is small, the diameter of the lower half part is large, and two ends of the valve core shell are open. The valve core bottom cover 9 is a circular cover plate, the middle part of the valve core bottom cover is provided with 3 through holes, and two sides of the valve core bottom cover are respectively provided with an upward clamping pin. The valve core bottom cover 9 is arranged at the lower opening of the valve core shell 8 and is clamped on the valve core shell 8 through two clamping feet, the front side and the rear side of the valve core bottom cover 9 are respectively provided with a raised limiting block, the two limiting blocks are different in width and size and are respectively inserted into two grooves formed in the lower edge of the valve core shell 8, and the limiting and anti-reverse-installation effects are achieved. And 3 through holes in the middle of the valve core bottom cover 9 are respectively provided with a rubber sleeve 10.
The valve core shell 8 is internally provided with a gear retainer 19, a left rotating frame 22, a left sliding block 24, a right rotating frame 23, a right sliding block 25, an upper ceramic plate 27, a lower ceramic plate 28 and the like.
The lower ceramic plate 28 is arranged at the upper part of the valve core bottom cover 9. The lower ceramic plate 28 is a circular ceramic plate with a certain thickness, the upper end surface and the bottom surface of the lower ceramic plate are machined into smooth planes, and two sides of the lower ceramic plate are respectively machined and removed to form two parallel small planes. The bottom surface of the lower ceramic wafer 28 is provided with 3 round counter bores, and the middle of each counter bore is provided with a round hole with a diameter smaller than that of the counter bore, namely a cold water inlet hole, a hot water inlet hole and a warm water outlet hole. The upper end surface of the lower ceramic plate 28 is provided with 3 water channel grooves which are respectively communicated with the cold water inlet hole, the hot water inlet hole and the warm water outlet hole. 3 grooves are distributed on the outer ring of the lower ceramic plate 28, and 3 bosses arranged on the valve core bottom cover 9 are respectively inserted into the 3 grooves. The cold water inlet hole, the hot water inlet hole and the warm water outlet hole on the lower ceramic plate 28 are respectively aligned with the 3 through holes on the valve core bottom cover 9. The front ends of the 3 rubber sleeves 10 are respectively inserted into the counter bores of the cold water inlet hole, the hot water inlet hole and the warm water outlet hole on the ceramic chip, and the upper end face of the rubber sleeve 10 is attached to the bottom surfaces of the counter bores.
The upper part of the lower ceramic plate 28 is provided with an upper ceramic plate 27, the upper ceramic plate 27 is also a round ceramic plate with a certain thickness, the upper end surface and the bottom surface are also processed into smooth planes, the bottom surface of the upper ceramic plate 27 is attached to the upper end surface of the lower ceramic plate 28, and the middle part is coated with food-grade lubricating grease for lubrication and sealing. The upper end surface of the upper ceramic plate 27 is provided with a hot water port, a hot water mixing port, a cold water mixing port and a temperature sensor mounting hole, the middle part of the upper ceramic plate is also provided with 2 small round counter bores, and the bottom surface of the upper ceramic plate is provided with 3 water channel grooves (respectively a hot water channel groove, a cold water channel groove and a warm water channel groove). The 3 water channel grooves are aligned with the 3 water channel grooves on the upper end surface of the lower ceramic plate 28 to form closed water channels, namely a hot water channel, a cold water channel and a warm water channel. And the groove of the hot water channel on the upper ceramic plate 27 is communicated with the hot water port on the upper end surface thereof, the groove of the cold water channel is communicated with the cold water port on the upper end surface thereof, and the groove of the warm water channel is respectively communicated with the hot water mixing port and the cold water mixing port on the upper end surface thereof.
A round hole is formed in the middle of the warm water channel groove and communicated with the upper end face, the temperature sensor 26 is arranged in the round hole, and the end part of the temperature sensor 26 extends into the warm water channel and is used for detecting the temperature of warm water in real time.
The front and the back of the outer ring of the upper ceramic plate 27 are respectively provided with a notch, and after the upper ceramic plate is arranged in the valve core shell 8, the notches are respectively clamped on two positioning ribs arranged on the periphery in the valve core shell 8, so that the upper ceramic plate 27 can not rotate in the valve core shell 8.
The upper part of the upper ceramic plate 27 is provided with a left sliding block 24 and a right sliding block 25, and the left sliding block 24 and the right sliding block 25 are two semicircular ceramic blocks. The upper end surface and the bottom surface of the upper ceramic plate 27 are both processed into smooth planes, the bottom surfaces of the left sliding block 24 and the right sliding block 25 are both processed with water channel grooves, the left sliding block 24 covers the upper end surface of the upper ceramic plate 27 on the hot water port and the hot water mixing port, and the water channel grooves on the bottom surface of the left sliding block just can communicate the hot water port and the hot water mixing port completely. The right sliding block 25 covers the cold water port and the cold water mixing port on the upper end surface of the upper ceramic plate 27, the water channel groove on the bottom surface of the right sliding block just can completely communicate the cold water port and the cold water mixing port, and food-grade lubricating grease is also coated between the left sliding block 24 and the upper ceramic plate 27 and between the right sliding block 25 and the upper ceramic plate 27. The left sliding block 24 and the right sliding block 25 can slide on the upper ceramic plate 27, for example, when the left sliding block 24 slides, the aperture of the water channel groove on the bottom surface of the left sliding block, which is communicated with the hot water port on the upper end surface of the upper ceramic plate 27, gradually decreases until all the hot water ports are no longer communicated with the water channel groove; when the right sliding block 25 slides, the aperture of the water channel groove on the bottom surface of the right sliding block, which is communicated with the cold water port on the upper end surface of the upper ceramic plate 27, gradually decreases until all the cold water holes are not communicated with the water channel groove.
The upper part of the upper ceramic plate 27 is also provided with a left rotating frame 22 and a right rotating frame 23, the left rotating frame 22 and the right rotating frame 23 are two semicircular brackets, the bottoms of the two semicircular brackets are provided with grooves, and the shapes of the grooves correspond to the shapes of the left sliding block 24 and the right sliding block 25. The left sliding block 24 and the right sliding block 25 are just clamped in the groove at the bottom, a side surface of the groove is also provided with a limiting rib respectively, and the limiting ribs are inserted into the grooves formed in the edges of the left sliding block 24 and the right sliding block 25 respectively. The upper surfaces of the left rotating frame 22 and the right rotating frame 23 are semicircular vertical walls, and teeth are distributed on the inner sides of the vertical walls. The centers of the left rotating frame 22 and the right rotating frame 23 are both provided with a central short shaft, the lower ends of the central short shafts are respectively inserted into 2 small round counter bores in the middle of the upper end face of the upper ceramic plate 27, and the left rotating frame 22 and the right rotating frame 23 respectively drive the left sliding block 24 and the right sliding block 25 to rotate around the respective central shafts.
The gear retainer 19 is mounted on the upper parts of the left rotating frame 22 and the right rotating frame 23, and the gear retainer 19 is a circular bracket and is mounted in the valve core shell 8. A notch is respectively arranged in the front and the back of the outer ring of the gear retainer 19 and is respectively clamped on two positioning ribs arranged on the circumference in the valve core shell 8, so that the gear retainer 19 cannot rotate in the valve core shell 8. The middle of the gear retainer 19 is provided with a groove, the center of the bottom of the groove is provided with two small round holes, and the upper ends of the central short shafts of the left rotating frame 22 and the right rotating frame 23 are respectively inserted into the two small round holes. The left side and the right side below the gear retainer 19 are respectively provided with a small short shaft, and the small short shafts are respectively provided with an intermediate gear 21. The intermediate gear 21 is freely sleeved on the small stub shaft and can freely rotate around the small stub shaft. The modulus of the two intermediate gears 21 is the same as the teeth on the vertical walls of the left rotating frame 22 and the right rotating frame 23, and the two intermediate gears 21 are respectively meshed with the teeth on the vertical walls of the left rotating frame 22 and the right rotating frame 23, and the 2 intermediate gears 21 respectively drive the left rotating frame 22 and the right rotating frame 23 to rotate. A part of the inner sides of the two intermediate gears 21 is exposed from a recess in the upper part of the gear holder 19.
The front part of the gear holder 19 is provided with a zero returning circuit board 20, and the zero returning circuit board 20 is clamped and fixed by 3 clamping feet on the gear holder 19. A detection sensor is respectively welded on the left side and the right side of the zero returning circuit board 20, and when the left rotating frame 22 drives the left sliding block 24 to rotate to the position where the hot water channel is completely closed, a detection switch on the left side of the zero returning circuit board 20 is triggered by the left rotating frame 22; when the right rotating frame 23 drives the right sliding block 25 to rotate to the position where the cold water channel is completely closed, the detection switch on the right side of the zero returning circuit board 20 is triggered by the right rotating frame 23. The return-to-zero circuit board 20 is also provided with 2 leads which are connected with a temperature sensor 26 arranged on an upper ceramic chip 27, and the other side of the return-to-zero circuit board 20 is also provided with a pin header. After the valve core bottom cover 9 and the valve core shell 8 are assembled, the lower ceramic plate 28, the upper ceramic plate 27, the left and right sliding blocks 25, the left and right rotating supports and the gear retainer 19 are sequentially pressed in the valve core shell 8.
As shown in fig. 4, the control and drive section includes an upper cover 1, a lower case 2, a control main board 15, a battery 16, a drive motor 17, a motor bracket 11, a relay circuit board 18, and a drive gear 12.
The lower case 2 has a hollow case structure, and a control main board 15 and a battery 16 are mounted therein. The control main board 15 is provided with a display screen, various interfaces, a control driving chip and other electrical elements. The control main board 15 is fastened in the lower case 2 by 4 screws, and there is a space on the lower case 2 below the control main board 15 for accommodating a battery compartment of the battery 16. The upper cover 1 is a rectangular hollow shell structure and is arranged on the lower shell 2 and is tightly connected with the lower shell 2 through 4 screws. The circumference of the upper cover 1 is provided with a circle of groove, and a sealing ring 29 is plugged in the groove. The ribs arranged on the periphery of the lower shell 2 are just inserted into the grooves on the periphery of the upper cover 1 and tightly press the sealing ring 29, so that water can be prevented from entering the inner space.
A display window is arranged in the middle of the front surface of the upper cover 1, transparent lenses are embedded in the display window, and the display screen 14 on the control mainboard 15 can be seen through the display window. The bottom of the lower shell 2 is a section of cylinder, a motor bracket 11 and a driving motor 17 are installed in the cylinder, the driving motor 17 is two direct current speed reducing motors, and the tail parts of the two direct current speed reducing motors are respectively provided with a circular magnet. Two driving motors 17 are placed side by side, and the drive pin at the rear is welded on the same circuit board, and the circuit board is provided with a Hall sensor chip for detecting the steering, rotation angle and rotation speed of the motors.
The lead wire on the circuit board is connected with the control main board 15, the front parts of the two driving motors 17 are inserted into the rectangular grooves formed in the motor support 11 and are clamped and fixed through clamping pins on the periphery of the grooves. The front parts of the two driving motors 17 are respectively provided with a long section of output shaft, the output shafts penetrate through the two circular through holes in the front parts of the motor supports 11, the front ends of the output shafts are exposed out of the motor supports 11 by a section, and the exposed output shafts are respectively provided with a driving gear 12.
The motor support 11 is installed in a cylinder at the bottom of the lower shell 2 and is fastened on 2 studs arranged on the inner wall of the cylinder through 2 screws, 2 driving motors 17 and the rear half part of the motor support 11 are installed inside the cylinder, and the front half part of the motor support 11 and the two driving gears 12 are exposed out of the cylinder. The exposed part of the motor bracket 11 is also in a cylindrical structure and is inserted into an inner hole of the upper half part of the valve core shell 8, the outer diameter of the exposed part is the same as the diameter of the inner hole of the upper half part of the valve core shell 8, and the exposed part passes through a semicircular bulge arranged on the side wall of the inner hole of the valve core shell 8. The motor bracket 11 is limited to rotate by inserting into a semicircular groove arranged on the outer ring of a cylinder at the front part of the motor bracket 11. After the motor bracket 11 is inserted into the valve core shell 8, the driving gears 12 arranged at the front ends of the output shafts of the two motors are just meshed with two intermediate gears 21 arranged at the bottom of the gear retainer 19 respectively. When 2 driving motors 17 drive driving gear 12 to rotate, 2 driving gear 12 drives 2 intermediate gears 21 to rotate, and simultaneously 2 intermediate gears 21 drive left rotating frame 22 and right rotating frame 23 to rotate around respective central axes respectively. The left rotating frame 22 and the right rotating frame 23 rotate to respectively drive the left sliding block 24 and the right sliding block 25 to slide on the upper end surface of the upper ceramic sheet 27, so as to respectively adjust the caliber size of the hot water opening communicated with the hot water mixing opening and the caliber size of the cold water opening communicated with the cold water mixing opening, realize the adjustment of the hot water quantity and the cold water quantity entering the warm water channel, and further realize the adjustment of the temperature of the warm water.
The front end of the motor support 11 is also provided with a switching circuit board 18, the front surface of the switching circuit board 18 is welded with a seat, the seat is spliced with a pin header welded on a return-to-zero circuit board 20 arranged in the valve core for electrical connection, the back surface of the switching circuit board 18 is welded with a lead, and the lead is connected with the control mainboard 15.
The outer ring of the lower end of the lower shell 2 is provided with threads, the cover ring 3 is screwed on the lower shell 2 through the threads in the middle hole of the cover ring, and the inner part of the outer ring of the cover ring 3 is also provided with threads.
A common manual cold and hot water mixing valve is characterized in that a valve body is provided with a circular counter bore, the bottom of the counter bore is provided with a hot water inlet hole, a cold water inlet hole and a warm water outlet hole, the hot water inlet hole is connected with an external hot water pipe, the cold water inlet hole is connected with an external cold water pipe, and the warm water outlet hole is communicated with a water outlet on the valve body. The valve core is arranged in the counter bore on the valve body, and the hot water inlet hole, the cold water inlet hole and the warm water outlet hole at the lower part of the valve core are respectively communicated with the hot water inlet hole, the cold water inlet hole and the warm water outlet hole at the bottom of the counter bore on the valve body through the rubber sleeve 10.
Threads are processed on the inner wall of the periphery of the opening of the counter bore of the valve body, and the valve core is tightly pressed and fixed by a pressing screw ring 6 screwed into the opening of the counter bore after being arranged in the counter bore. A sealing gasket 7 is arranged between the pressing spiral ring 6 and the valve core and used for preventing water from entering the valve core. After the upper half part consisting of the upper cover 1, the lower shell 2, the control main board 15, the driving motor 17, the motor bracket 11, the driving gear 12 and the like is inserted on the upper part of the valve core, the cover ring 3 at the lower end of the lower shell 2 is connected with the upper helicoid 4 through threads. The upper helicoid 4 is of an annular sleeve structure, the upper half part of the outer circle of the upper helicoid is provided with threads, the bottom of the inner circle is provided with an inner flanging, and the lower helicoid 5 is sleeved in the inner circle of the upper helicoid 4 in an empty way. The lower helicoid 5 is also in an annular sleeve structure, an outer flanging is arranged on the outer ring of the lower helicoid 5, threads are machined on the inner ring of the lower helicoid, and the outer flanging on the upper part of the lower helicoid 5 is clamped by an inner flanging at the bottom of the upper helicoid 4, so that the lower helicoid 5 can rotate freely but cannot be separated from the upper helicoid 4. The lower helicoid 5 is tightly screwed and installed on the pressing helicoid 6 through the threads of the inner ring, so that the upper half part consisting of the upper cover 1, the lower shell 2, the control mainboard 15, the driving motor 17, the motor bracket 11, the driving gear 12 and the like is tensioned and fixed on the valve body through the upper and lower threaded connections of the cover ring 3, the upper helicoid 4, the lower helicoid 5 and the pressing helicoid 6. The outer ring of the cylinder of the upper half part of the valve core shell 8 is sleeved with a rubber ring 13, the outer ring of the rubber ring 13 is tightly extruded in the cylinder of the lower part of the lower shell 2, and water is prevented from entering the lower shell 2 from the bottom.
After the hot water in the hot water pipe and the cold water in the cold water pipe enter the valve body, the hot water and the cold water enter the valve core through the hot water inlet hole and the cold water inlet hole at the bottom of the valve core, and the hot water entering the valve core reaches the hot water port on the upper end surface of the upper ceramic plate 27 through the hot water channel between the upper ceramic plate 27 and the lower ceramic plate 28. When the left sliding block 24 covering the upper part of the upper ceramic plate 27 is in a closed state, the left sliding block 24 completely blocks the hot water hole on the upper end surface of the upper ceramic plate 27, and hot water cannot pass through; when left slide block 24 is moved to the open position, the hot water port on the upper end surface of upper ceramic plate 27 communicates with the water passage at the bottom of left slide block 24, so that hot water starts to enter the water passage at the bottom of left slide block 24. Because the water channel at the bottom of the left sliding block 24 is also communicated with the hot water mixing hole on the upper end surface of the upper ceramic plate 27, the hot water entering the water channel at the bottom of the left sliding block 24 continues to enter the warm water channel between the upper ceramic plate 27 and the lower ceramic plate 28 through the hot water mixing hole. Similarly, the cold water entering the valve core passes through a cold water channel between the upper ceramic plate 27 and the lower ceramic plate 28 and reaches a cold water port on the upper end surface of the upper ceramic plate 27; when the right sliding block 25 covering the upper part of the upper ceramic plate 27 is in a closed state, the right sliding block 25 completely seals the cold water hole on the upper end surface of the upper ceramic plate 27, and cold water cannot pass through; when the right sliding block 25 moves to the open position, the cold water port on the upper end face of the upper ceramic piece 27 is communicated with the water channel at the bottom of the right sliding block 25, cold water enters the water channel at the bottom of the right sliding block 25, and the cold water entering the water channel at the bottom of the right sliding block 25 is simultaneously communicated with the cold water mixing hole on the upper end face of the upper ceramic piece 27, so that the cold water entering the water channel at the bottom of the right sliding block 25 continuously enters the warm water channel between the upper ceramic piece 27 and the lower ceramic piece 28 through the cold water mixing hole. The hot water entering the warm water channel and the cold water entering the warm water channel are mixed in the warm water channel, and the mixed warm water enters the valve body through the warm water outlet hole at the bottom of the valve core and flows out from the water outlet of the valve body.
And a temperature sensor 26 arranged in the warm water channel monitors the temperature of the warm water in real time and transmits the information of the temperature of the warm water to the control main board 15. When the temperature of the warm water is lower than the water temperature set by a user, the control main board 15 controls the left driving motor 17 to rotate, the left sliding block 24 is driven to move anticlockwise through the driving gear 12, the intermediate gear 21 and the left rotating frame 22, the connecting aperture of a hot water port and a water channel at the bottom of the left sliding block 24 is increased, and the amount of the hot water entering the warm water channel is increased; meanwhile, the right driving motor 17 rotates to drive the right sliding block 25 to move anticlockwise through the driving gear 12, the middle gear 21 and the right rotating frame 23, the connecting apertures of the cold water port and the water channel at the bottom of the right sliding block 25 are reduced, and the amount of cold water entering the warm water channel is reduced until the water temperature of the warm water channel is consistent with the water temperature set by a user. Similarly, when the temperature of the warm water is lower than the temperature set by the user, the driving motor 17 rotates clockwise and drives the left sliding block 24 and the right sliding block 25 to move counterclockwise, so that the water amount of the hot water entering the warm water channel is reduced, and the water amount of the cold water entering the warm water channel is increased at the same time until the temperature of the warm water channel is consistent with the temperature set by the user.
On the upper surface of upper cover 1, the both sides of display window are equipped with respectively goes out water switch and regulation water yield, the operation button of temperature, and the button can be the push type also can formula touch, respectively with control mainboard 15 on the electrical switch or touch-sensitive point align, go out water switch and be used for controlling the start and stop of warm water play, the water yield is adjusted the button and is used for controlling the increase and the reduction of water yield, the adjustment button of temperature is used for going out the adjustment that the water temperature rose or reduced.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to be covered by the protection scope defined by the claims of the present invention.
Claims (10)
1. An electric cold and hot water constant-temperature water mixing valve core is characterized by comprising an upper part and a lower part, wherein the upper part is a control and driving part, the lower part is a valve core part, and the two parts are connected and fastened through a spiral ring after being spliced; the valve core part comprises a valve core shell and a valve core bottom cover; an adjusting component for adjusting the amount of mixed water of cold water and hot water is arranged in the valve core shell; the control and drive part comprises an upper cover and a lower shell, the control main board, the drive motor and the adapter circuit board are arranged in the lower shell, and the drive motor is connected with the drive gear and drives the adjusting part in the valve core shell through the drive gear.
2. The electric hot and cold water thermostatic mixing valve core of claim 1, characterized in that the valve core shell is a hollow cylinder, the valve core bottom cover is a circular cover plate, the middle part of the valve core is provided with 3 through holes, and two sides of the valve core are respectively provided with an upward clamping foot; the valve core bottom cover is arranged at the lower opening of the valve core shell and is clamped on the valve core shell through two clamping pins; the front side and the rear side of the valve core bottom cover are respectively provided with a raised limiting block, the two limiting blocks have different width sizes and are respectively inserted into two grooves arranged on the lower edge of the valve core shell; and 3 through holes in the middle of the valve core bottom cover are respectively provided with a rubber sleeve.
3. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 1, wherein the adjusting component comprises a gear retainer, two intermediate gears, a left rotating frame, a left sliding block, a right rotating frame, a right sliding block, an upper ceramic plate and a lower ceramic plate; the lower ceramic plate is arranged at the upper part of the valve core bottom cover; the upper ceramic plate is arranged on the upper part of the lower ceramic plate, and the left sliding block and the right sliding block are arranged on the upper part of the upper ceramic plate and can adjust the amount of mixed water of cold water and hot water in a sliding manner on the upper ceramic plate; the left rotating frame and the right rotating frame are respectively clamped on the left sliding block and the right sliding block, the two intermediate gears are installed through the gear retainer and are respectively meshed with the teeth on the inner walls of the left rotating frame and the right rotating frame, and the two intermediate gears are also respectively meshed with the two driving gears.
4. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 3, wherein the upper end surface and the bottom surface of the lower ceramic sheet are smooth planes, and two parallel small planes are arranged on two sides of the lower ceramic sheet; the bottom surface of the lower ceramic plate is provided with 3 round counter bores, and the middle parts of the counter bores respectively correspond to a cold water inlet hole, a hot water inlet hole and a warm water outlet hole; the upper end surface of the lower ceramic plate is provided with 3 water channel grooves which are respectively communicated with the cold water inlet hole, the hot water inlet hole and the warm water outlet hole; 3 grooves are distributed on the outer ring of the lower ceramic chip, and 3 bosses arranged on the valve core bottom cover are respectively inserted into the 3 grooves; a cold water inlet hole, a hot water inlet hole and a warm water outlet hole on the lower ceramic plate are respectively aligned with 3 through holes on the valve core bottom cover; the front ends of the 3 rubber sleeves are respectively inserted into the counter bores of the cold water inlet hole, the hot water inlet hole and the warm water outlet hole on the ceramic chip, and the upper end faces of the rubber sleeves are attached to the bottom faces of the counter bores.
5. The electric cold and hot water constant-temperature water mixing valve core according to claim 3, wherein the upper end surface and the bottom surface of the upper ceramic plate are smooth planes, the bottom surface of the upper ceramic plate is attached to the upper end surface of the lower ceramic plate, the upper end surface of the upper ceramic plate is provided with a hot water port, a hot water mixing port, a cold water mixing port and a temperature sensor mounting hole, the middle part of the upper ceramic plate is also provided with 2 circular counter bores, and the bottom surface is provided with a hot water channel groove, a cold water channel groove and a warm water channel groove; the 3 water channel grooves are aligned with the 3 water channel grooves on the upper end face of the lower ceramic sheet respectively to form closed water channels which are respectively a hot water channel, a cold water channel and a warm water channel; the hot water channel groove on the upper ceramic plate is communicated with a hot water port on the upper end surface of the upper ceramic plate, the cold water channel groove is communicated with a cold water port on the upper end surface of the upper ceramic plate, and the hot water channel groove is respectively communicated with a hot water mixing port and a cold water mixing port on the upper end surface of the upper ceramic plate; a round hole is formed in the middle of the warm water channel groove and leads to the upper end face of the upper ceramic plate, a temperature sensor for detecting the temperature of warm water in real time is fixed in the round hole, and the end of the temperature sensor extends into the warm water channel.
6. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 5, wherein the left sliding block and the right sliding block are two semicircular ceramic blocks; the upper end surface and the bottom surface are smooth planes, the bottom surfaces of the left sliding block and the right sliding block are also provided with water channel grooves, the left sliding block covers the hot water port and the hot water mixing port on the upper end surface of the upper ceramic sheet, and the water channel grooves on the bottom surface can fully communicate the hot water port and the hot water mixing port; the right sliding block covers the cold water port and the cold water mixing port on the upper end face of the upper ceramic piece, the water channel groove on the bottom surface of the right sliding block can fully communicate the cold water port with the cold water mixing port, the left sliding block and the right sliding block can slide on the upper ceramic piece, and the pore diameter of the water channel groove on the bottom surface of the left sliding block, which is communicated with the hot water port on the upper end face of the upper ceramic piece, is gradually reduced when the left sliding block slides until all the hot water holes are not communicated with the water channel groove; when the right sliding block slides, the aperture of the water channel groove on the bottom surface of the right sliding block communicated with the cold water port on the upper end surface of the upper ceramic plate gradually decreases until all the cold water holes are not communicated with the water channel groove.
7. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 5, wherein the left rotating frame and the right rotating frame are two semicircular brackets, the bottom of each bracket is provided with a groove, and the shape of each groove corresponds to the shape of each of the left sliding block and the right sliding block; the left sliding block and the right sliding block are respectively arranged in grooves at the bottoms of the left rotating frame and the right rotating frame, one side surface of each groove is also provided with a limiting rib, and the limiting ribs are respectively inserted into the grooves arranged at the edges of the left sliding block and the right sliding block; the upper surfaces of the left rotating frame and the right rotating frame are semicircular vertical walls, and teeth are distributed on the inner sides of the vertical walls; the centers of the left rotating frame and the right rotating frame are provided with a central short shaft, the lower ends of the central short shafts are respectively inserted into 2 circular counter bores in the middle of the upper end face of the upper ceramic wafer, the upper ends of the central short shafts are respectively inserted into two circular holes in the bottom of the gear retainer, and the left rotating frame and the right rotating frame respectively drive the left sliding block and the right sliding block to rotate around respective central shafts.
8. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 5, wherein the left side and the right side below the gear retainer are respectively provided with a small short shaft, and the small short shafts are respectively provided with an intermediate gear; the middle gears are sleeved on the small short shaft in a hollow mode, the modulus of the two middle gears is the same as that of the teeth on the vertical walls of the left rotating frame and the right rotating frame, the two middle gears are meshed with the teeth on the vertical walls of the left rotating frame and the right rotating frame respectively, and the 2 middle gears drive the left rotating frame and the right rotating frame to rotate respectively.
9. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 5, wherein the gear retainer is provided with a zero returning circuit board, the left side and the right side of the zero returning circuit board are respectively provided with a detection sensor, and when the left rotating frame drives the left sliding block to rotate to a position where the hot water channel is completely closed, a left detection switch on the zero returning circuit board is triggered by the left rotating frame; when the right rotating frame drives the right sliding block to rotate to the position where the cold water channel is completely closed, the detection switch on the right side of the zero returning circuit board is triggered by the right rotating frame; the zeroing circuit board is also provided with 2 leads connected with a temperature sensor arranged on the upper ceramic plate, and the other side of the zeroing circuit board is also provided with a pin header.
10. The electric cold and hot water constant-temperature water mixing valve core as claimed in claim 1, wherein a control main board and a battery are installed inside the lower shell; the control main board is provided with a display screen, an interface and a control driving chip; the upper cover is arranged on the lower shell, the bottom of the lower shell is a section of cylinder, a motor support and driving motors are arranged in the cylinder, the two driving motors are arranged side by side, the rear parts of the driving motors are provided with encoders, and the front parts of the two driving motors are inserted into the motor support; the front parts of the two driving motors are respectively provided with an output shaft, and the output shafts penetrate through the two circular through holes in the front parts of the motor brackets and are connected with the driving gear; the driving gears are respectively meshed with the two intermediate gears.
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| CN202010447729.9A CN111561585B (en) | 2020-05-25 | 2020-05-25 | Electric cold and hot water constant temperature water mixing valve core |
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| CN202010447729.9A CN111561585B (en) | 2020-05-25 | 2020-05-25 | Electric cold and hot water constant temperature water mixing valve core |
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| CN111561585B CN111561585B (en) | 2021-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943975A (en) * | 2021-01-29 | 2021-06-11 | 成都联帮医疗科技股份有限公司 | Electric reversing control valve for oxygen generation and control method |
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| CN111561585B (en) | 2021-10-15 |
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