CN212643688U

CN212643688U - Constant temperature water valve

Info

Publication number: CN212643688U
Application number: CN202021352216.1U
Authority: CN
Inventors: 路红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-02
Anticipated expiration: 2030-07-10

Abstract

The utility model belongs to the technical field of the valve body technique and specifically relates to a constant temperature water valve is related to. The method comprises the following steps: the valve core assembly comprises a main shell, a first driving assembly and a valve core assembly; the first driving assembly is arranged on the outer side of the main shell, and the first driving assembly can drive the valve core assembly to move towards a cold water inlet end or a hot water inlet end of the first-stage water mixing cavity; and the valve core assembly is provided with a protruding part which is used for being in sliding connection with the inner wall of the primary water mixing cavity. The constant temperature water valve in this application, the bulge and the one-level of case subassembly mix the contact of water intracavity wall, therefore first drive assembly when driving the extension direction removal of case subassembly along one-level muddy water chamber, the resistance that receives is less, and then the torsion that first drive assembly needs is less, can through less electric current.

Description

Constant temperature water valve

Technical Field

The utility model belongs to the technical field of the valve body technique and specifically relates to a constant temperature water valve is related to.

Background

At present, on the basis of a traditional manual water mixing valve, a domestic electric water heater thermostatic water valve is provided with a speed reduction stepping motor in a rotating manual shaft of a ceramic valve core, and manual operation is changed into program driving the stepping motor to rotate the ceramic valve core, so that the proportion of cold water and hot water is adjusted, and water outlet with constant temperature according to set requirements is realized.

In the prior art, motor gears of most constant-temperature water valves are arranged outside, and a large gear of a valve core is driven by a small gear, so that the motor is required to have larger torque, and when the constant-temperature water valve works, the motor can be driven by current of 12V/500mA due to reaction force generated by friction of the ceramic valve core after being installed, so that the motor is subjected to higher temperature rise after being subjected to working load, and the service life of the motor is influenced due to heating problems.

SUMMERY OF THE UTILITY MODEL

The application provides a constant temperature water valve, the bulge and the one-level of case subassembly mix the contact of water intracavity wall, consequently first drive assembly when driving the extension direction removal of case subassembly along one-level muddy water chamber, the resistance that receives is less, and then the torsion that first drive assembly needs is less, can through less electric current.

In order to achieve the above object, the present application provides a thermostatic water valve, including: the valve core assembly comprises a main shell, a first driving assembly and a valve core assembly; the first driving assembly is arranged on the outer side of the main shell, and the first driving assembly can drive the valve core assembly to move towards a cold water inlet end or a hot water inlet end of the first-stage water mixing cavity;

and the valve core assembly is provided with a protruding part which is used for being in sliding connection with the inner wall of the primary water mixing cavity.

The utility model provides a constant temperature water valve, first drive assembly's part is fixed in on the main casing body, the case subassembly sets up in the one-level water mixing chamber in the main casing body, first drive assembly drive case subassembly removes to cold water inlet or hot water inlet, with the volume and the hydrothermal volume of the cold water that the regulation got into the one-level water mixing intracavity, so that the temperature that the one-level water mixing intracavity mixes water reaches predetermined value, wherein, establish on the case subassembly and be used for mixing the gliding bulge of inner wall in water mixing chamber with the one-level, consequently first drive assembly is when driving the extending direction removal in case subassembly along the one-level water mixing chamber, the resistance that receives is less, and then the torsion that first drive assembly needs is less, can through less electric current.

Preferably, the valve core assembly comprises a valve core and soft inserts arranged at two ends of the valve core, the soft inserts are arranged in a conical manner, and a cold water inlet and a hot water inlet of the primary water mixing cavity are both in a conical shape matched with the soft inserts.

Preferably, a slot is formed in the valve core, a rack is arranged in the slot, and a gear matched with the rack is arranged on an output shaft of the first driving assembly.

Preferably, the main shell is provided with a first channel communicated with the cold water inlet of the primary mixing cavity, a second channel and a third channel communicated with the first channel, and the first channel is internally provided with a cold water plug, a first filter screen and a hall assembly in sequence.

Preferably, still include on the main casing body with the fourth passageway of the hot water inlet intercommunication in one-level water mixing cavity, be equipped with the second filter screen in the fourth passageway, the second filter screen with be equipped with the location end cap that is used for the location case subassembly between the hot water inlet in one-level water mixing cavity, the location end cap is close to be equipped with the second sealing washer of one end of one-level water mixing cavity hot water inlet, the second sealing washer be used for with the location end cap with the fourth passageway is sealed.

Preferably, a secondary water mixing cavity communicated with the primary water mixing cavity, a flow dividing pipe communicated with the secondary water mixing cavity and a hot water outlet pipeline communicated with the flow dividing pipe are arranged in the main shell;

the main shell is provided with a first detection assembly for detecting the temperature of cold water entering the primary water mixing cavity, a second detection assembly for detecting the temperature of water in the secondary water mixing cavity and a third detection assembly for detecting a hot water outlet pipeline.

Preferably, the main shell is further provided with a second driving assembly and a flow adjusting rotating shaft arranged in the hot water outlet pipeline, and an output end of the second driving assembly is connected with the flow adjusting rotating shaft.

Preferably, the first detection assembly, the second detection assembly and the third detection assembly have the same structure;

the first detection assembly comprises a first pressing plate used for being fixed with the main shell, a first probe installed on the first pressing plate, and a first sealing ring arranged on the first probe.

Preferably, the device further comprises an integrated driving board arranged on the main shell and a Hall sensor arranged outside the first channel;

the first driving assembly, the first detection assembly, the second detection assembly, the third detection assembly, the second driving assembly and the Hall sensor are electrically connected to the integrated driving board.

Preferably, the dual-mode shunt pipe comprises a dual-mode shunt plug which can penetrate into the shunt pipe.

Drawings

Fig. 1 is an exploded view of a thermostatic water valve according to an embodiment of the present disclosure;

FIG. 2 is a top view of a thermostatic water valve according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is a cross-sectional view of C-C of FIG. 2;

fig. 6 is a cross-sectional view of E-E of fig. 3.

Icon: 1-a main housing; 2-a valve core; 3-soft insert; 4-first-stage water mixing cavity; 5-a first drive assembly; 6-gear; 7-cold water plug; 8-a first filter screen; 9-a hall assembly; 10-positioning a plug; 11-a first detection assembly; 12-a second detection assembly; 13-a third detection assembly; 14-a second filter screen; 15-a second drive assembly; 16-a flow regulating spindle; 17-a hall sensor; 18-an integrated drive board; 19-dual mode shunt plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the present application provides a thermostatic water valve comprising: the valve core assembly comprises a main shell 1, a first driving assembly 5 and a valve core assembly; a primary water mixing cavity 4 for accommodating the valve core assembly is arranged in the main shell 1, the first driving assembly 5 is arranged on the outer side of the main shell 1, and the first driving assembly can drive the valve core assembly to move towards a cold water inlet end or a hot water inlet end of the primary water mixing cavity 4;

wherein, be equipped with on the case subassembly and be used for with the bulge of the inner wall sliding connection of one-level muddy water chamber 4.

The utility model provides a constant temperature water valve, the part of first drive assembly 5 is fixed in on the main casing body 1, the case subassembly sets up in the one-level water mixing chamber 4 in the main casing body 1, first drive assembly 5 drive case subassembly removes to cold water inlet or hot water inlet, with the volume and the hydrothermal volume of adjusting the cold water that gets into in one-level water mixing chamber 4, so that the temperature of the interior mixed water of one-level water mixing chamber 4 reaches predetermined value, wherein, establish on the case subassembly and be used for the gliding bulge of inner wall with one-level water mixing chamber 4, consequently, first drive assembly 5 is when driving the extending direction removal of case subassembly along one-level water mixing chamber 4, the resistance that receives is less, and then the torsion that first drive assembly 5 needs is less, can through less electric current.

By adopting the mode, the first driving assembly 5 only needs 5V voltage for driving, the valve core assembly can be controlled by smaller torque force, and the stroke is smaller and is only about 5-10 mm. The work load of the motor is small, and because the output shaft rotates at a low speed after being decelerated, the friction between the parts is small, the service life of each part is greatly prolonged, and the comprehensive performance of the product is improved.

In addition, the inner surface of the main shell 1 is a precise mould manufactured by a mirror polishing process, the precision mould is produced by a high-pressure injection molding machine after being electroplated with chromium, the roughness of the inner surface of the valve body can reach a mirror level, and the influence on the performance and the service life of a product after the valve body pipeline is scaled can be effectively improved by the aid of the characteristic that the special modified engineering material is not easy to stick scale.

As an optional mode, the valve core assembly includes a valve core 2 and soft inserts 3 disposed at two ends of the valve core 2, the soft inserts 3 are disposed in a tapered manner, and the cold water inlet and the hot water inlet of the primary water mixing cavity 4 are both tapered in cooperation with the soft inserts 3. Meanwhile, a slot is formed in the valve core 2, a rack is arranged in the slot, and a gear 6 matched with the rack is arranged on an output shaft of the first driving assembly 5.

Specifically, the output shaft of the first driving component drives the gear 6 to rotate, so that the gear and the rack in the groove move to one end close to the cold water inlet or the hot water inlet, and the soft inserts 3 at the two ends of the valve core 2 are arranged in a conical manner, so that the valve core 2 is more compact when being matched with the cold water inlet and the hot water inlet of the primary water mixing cavity 4, and the control of the entering amount of cold water and hot water is facilitated.

It should be noted that, two sides of the valve core 2 are provided with protruding limiting parts for limiting the valve core 2 to be installed in the primary water mixing cavity 4, and the groove of the valve core 2 can be matched with the gear 6 on the first driving assembly 5.

As an optional mode, the main housing 1 is provided with a first channel communicated with the cold water inlet of the primary water mixing cavity 4, a second channel and a third channel communicated with the first channel, and the first channel is internally provided with a cold water plug 7, a first filter screen 8 and a hall assembly 9 in sequence.

Specifically, before entering the primary water mixing cavity 4, the cold water needs to pass through the first filter screen 8 and the hall assembly 9, so as to filter the cold water entering the primary water mixing cavity 4, and reduce the amount of impurities entering the primary water mixing cavity 4.

As an optional mode, still include on the main casing body 1 with the fourth passageway of the hot water inlet intercommunication in one-level water mixing cavity 4, be equipped with second filter screen 14 in the fourth passageway, second filter screen 14 with be equipped with the location end cap 10 that is used for the location case subassembly between the hot water inlet in one-level water mixing cavity 4, location end cap 10 is close to be equipped with the second sealing washer of one end in one-level water mixing cavity 4 hot water inlet, the second sealing washer be used for with location end cap 10 with the fourth passageway is sealed. The setting of second filter screen 14 can make and enter into the hot water in the one-level chamber of mixing 4 in impurity and incrustation scale reduction, simultaneously, the setting of location end cap 10 also can improve the precision of case subassembly position in the one-level chamber of mixing 4.

As an optional mode, a secondary water mixing cavity communicated with the primary water mixing cavity 4, a flow dividing pipe communicated with the secondary water mixing cavity and a hot water outlet pipeline communicated with the flow dividing pipe are arranged in the main shell 1; the main casing 1 is provided with a first detection component 11 for detecting the temperature of cold water entering the primary water mixing cavity 4, a second detection component 12 for detecting the temperature of water in the secondary water mixing cavity, and a third detection component 13 for detecting a hot water outlet pipeline. The arrangement of the first detection component 11, the second detection component 12 and the third component can more accurately know the water temperature of each part in the main housing 1, so as to facilitate the position adjustment of the valve core component.

As an optional mode, the main housing 1 is further provided with a second driving assembly 15 and a flow adjusting rotating shaft 16 disposed in the hot water outlet pipe, and an output end of the second driving assembly 15 is connected to the flow adjusting rotating shaft 16. The flow regulating rotating shaft 16 is provided with a through hole, and when the second driving component 15 drives the flow regulating rotating shaft 16 to rotate, an included angle between the through hole and the direction of hot water flow in the hot water outlet pipe can be changed along with the change, so that the flow of hot water flowing out through the flow regulating rotating shaft 16 is changed.

As an alternative, the first detecting component 11, the second detecting component 12 and the third detecting component 13 have the same structure; the first detection assembly 11 comprises a first pressing plate used for being fixed with the main shell 1, a first probe installed on the first pressing plate, and a first sealing ring arranged on the first probe. The second detecting assembly 12 includes a second pressing plate for fixing with the main housing 1, a second probe mounted on the second pressing plate, and a sealing ring disposed on the second probe. The third detecting component 13 includes a third pressing plate for fixing with the main housing 1, a third probe installed on the third pressing plate, and a sealing ring installed on the third probe. During specific detection, the first probe, the second probe and the third probe detect the water temperature.

As an optional mode, the device further comprises an integrated driving board 18 arranged on the main shell 1 and a hall sensor 17 arranged outside the first channel; the first driving assembly 5, the first detecting assembly 11, the second detecting assembly 12, the third detecting assembly 13, the second driving assembly 15 and the hall sensor 17 are electrically connected to the integrated driving board 18. The setting of the integrated drive plate 18 controls the coordinated operation of the first drive assembly 5 and the second drive assembly 15.

In the specific working process, after a communication line of the electronic integrated constant-temperature water valve is communicated with a host controller, the whole machine is completely powered on after being installed, the whole machine enters a standby state, a water injection key is arranged on a control panel of the whole machine, and after 5 seconds of a long key, the whole machine controller gives an instruction to an integrated drive plate 18 of the electronic integrated constant-temperature water valve through the communication line to order the integrated drive plate to press the default required position of the key, close a cold water port and fully open a hot water port. After the tap water passes through the first channel, all the tap water flows to the inner container water inlet pipe through the second channel because the second channel and the first-stage water mixing cavity 4 are closed. When water flows out from the fourth channel, the water flows into the first-stage water mixing cavity 4 through the fully-opened hot water port and then flows out from the hot water outlet. And pressing the 'water injection' key for 5 seconds again to withdraw. When the machine is started, the relay controlling the inner container starts to work according to a specified working mode by the control software. After the water flow of the inner container is insulated. The hot water is used, and the water outlet degree of the hot water can be set between 30 and 50 degrees. Pressing a key or the key, setting the water outlet temperature between 30 and 50 degrees, for example, in a winter mode, heating the water temperature of an inner container to 80 degrees by a user, keeping the temperature, then bathing with water, setting the water outlet temperature to 43 degrees, at the moment, giving an instruction to a drive plate of an electronic integrated constant-temperature water valve by a complete machine controller, commanding the drive plate to control according to the water temperature set by the user to 43 degrees, acquiring the water inlet temperature by a first probe by a built-in program controller of the drive plate, acquiring the water inlet flow by a Hall assembly 9, acquiring the temperature of the inner container by an external controller, then giving the rotation angle of a motor after IC (integrated circuit) calculation according to the water outlet temperature set by the user, driving a gear by a constant-speed driving gear by the motor, driving a first valve core assembly to 90 percent of a preset position by the gear, acquiring the water outlet temperature of 39 degrees by a second probe, the proportion of hot water entering the first-stage water mixing cavity is gradually increased, the preset water temperature is finally reached, the second probe head collects and feeds back the hot water to the integrated drive plate 18, the integrated driver of the valve body continuously collects signals, and after the collected water temperature and the preset temperature are compared and analyzed, the motor stops rotating when the water temperature is equal to or within an error range. When water is used all the time, the temperature of the water in the inner container is gradually reduced, the temperature reduction speed of the inner container reaches 3-5 degrees per minute, but the user still needs to use the water at 43 degrees, at the moment, the second motor enters an intelligent assistance mode, the water outlet flow is adjusted according to the requirement of the water outlet temperature, and the water outlet switch is closed until the user uses up the water. Manually adjusting the function description of the second motor; when the water inlet flow of a user is too large and the user wants to save water or prolong the hot water time, the flow data can be manually input by the control panel of the whole machine for 2.5-8L/min. The valve body automatically adjusts and keeps the preset flow rate to flow out of the valve body according to requirements. The output temperature and output flow of the hot water of the whole machine are controlled by the internal driver of the valve body, and the external whole machine controller only needs to provide instructions to the internal driver of the valve body through a communication line and collect feedback signals to be displayed on a panel. The method reduces a lot of work and saves a lot of time for manufacturers to use and develop new products.

When the thermostatic water valve is assembled, the following steps can be carried out:

step 1: install case 2 and soft mold insert 3 into the case subassembly, the flat position of the gear 6 on the first drive assembly 5 is towards the hot water end of the first-order muddy water chamber 4 in the main casing body 1, then insert into first-order muddy water chamber 4 from the hot water end fabrication hole with the case subassembly, use anchor clamps to withstand the case subassembly, guarantee that the case subassembly pastes the cold water import in the first-order muddy water chamber 4, then be used for first driving motor to insert into from the pivot hole, rotate gently the back and aim at the flat position of motor commentaries on classics output shaft drive gear 6 mounting hole, compress tightly first driving motor and main casing body 1, lock with the screw. Then inserting the plug of the valve core 2 provided with the O-shaped sealing ring into the first-stage water mixing cavity 4 from the process hole of the hot water end, then inserting the second filter screen 14, and fixing the second filter screen with a gasket by using a nut;

step 2: installing a Hall assembly 9, inserting the Hall assembly into the first channel, placing a first filter screen 8, and propping and clamping the first filter screen by using a fixed plug;

and step 3: installing a flow regulating valve: installing a second driving assembly 15 on a corresponding installation position of the valve body main shell 1 by a support, sleeving an O-shaped sealing ring on a flow adjusting rotating shaft 16, inserting the O-shaped sealing ring into a hot water outlet pipeline, then inserting an output shaft of a second driving motor into the flow adjusting rotating shaft 16, inserting the output shaft and the flow adjusting rotating shaft into corresponding installation holes of the valve body main shell 1 after assembly, and fixing the output shaft and the flow adjusting rotating shaft on a motor installation support by screws;

and 4, step 4: the first probe is mounted, sleeved with an O-ring, and fixed to the first channel casing wall of the main casing 1 with a first pressing plate. Fixing the Hall sensor 17 on the first channel shell wall of the valve body main shell 1 by screws;

and 5: repeating the method of step 4 to mount the second detection assembly 12 and the third detection assembly 13 on the main housing 1;

step 6: an integrated drive plate 18 is arranged in a middle drive plate mounting box of the valve body main shell 1 by screws;

and 7: the first driving assembly 5, the first detection assembly 11, the second detection assembly 12, the third detection assembly 13, the second driving assembly 15 and the hall sensor 17 are electrically connected to the integrated driving board 18;

and 8: the weak current cover is locked on the valve body main shell 1 by screws, and the external communication flat cable of the integrated drive plate 18 is led out from a slot opening;

and step 9: when the thermostatic water valve is suitable for single-mode and double-mode vertical machines, the horizontal mounting pipe orifice can be sealed by a nut and a gasket, and an adapter is not used at the moment;

step 10: when the thermostatic water valve is suitable for a horizontal machine, the vertical mounting pipe orifice can be sealed by a nut and a gasket, and the nut and the gasket are connected with the main shell 1 by matching an adapter;

step 11: a process pipe orifice of a cold water inlet connected with the primary water mixing cavity 4 is sealed by a nut and a gasket;

step 12: when the constant temperature water valve is suitable for a double-mode machine, an O-shaped sealing ring is sleeved on a shunt plug and is inserted into a shunt pipe hole, and then the pipe opening is sealed by an inner tooth plug and the O-shaped sealing ring;

step 13: when the constant temperature water valve is suitable for a single-mold machine, the double-mold shunt plug 19 and the O-shaped sealing ring are not required to be arranged;

step 14: and sealing the pipe orifice of the secondary water mixing cavity by using an inner tooth plug and an O-shaped sealing ring.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A thermostatic water valve, comprising: the valve core assembly comprises a main shell, a first driving assembly and a valve core assembly; the first driving assembly is arranged on the outer side of the main shell, and the first driving assembly can drive the valve core assembly to move towards a cold water inlet end or a hot water inlet end of the first-stage water mixing cavity;

2. The constant-temperature water valve according to claim 1, wherein the valve core assembly comprises a valve core and soft inserts arranged at two ends of the valve core, the soft inserts are arranged in a conical manner, and a cold water inlet and a hot water inlet of the primary water mixing cavity are both in a conical manner and are matched with the soft inserts.

3. The thermostatic water valve of claim 2, wherein the valve element has a slot, wherein a rack is disposed in the slot, and wherein the output shaft of the first drive assembly has a gear engaged with the rack.

4. The thermostatic water valve as claimed in claim 1, wherein the main housing is provided with a first passage communicated with the cold water inlet of the primary mixing chamber, a second passage and a third passage communicated with the first passage, and the first passage is internally provided with a cold water plug, a first filter screen and a hall assembly in sequence.

5. The constant-temperature water valve according to claim 1, wherein the main housing further comprises a fourth channel communicated with a hot water inlet of the primary water mixing cavity, a second filter screen is arranged in the fourth channel, a positioning plug for positioning the valve element assembly is arranged between the second filter screen and the hot water inlet of the primary water mixing cavity, a second sealing ring is arranged at one end, close to the hot water inlet of the primary water mixing cavity, of the positioning plug, and the second sealing ring is used for sealing the positioning plug and the fourth channel.

6. The thermostatic water valve of claim 1, wherein a secondary mixing chamber in communication with the primary mixing chamber, a shunt tube in communication with the secondary mixing chamber, and a hot outlet conduit in communication with the shunt tube are disposed within the main housing;

7. The thermostatic water valve of claim 6, wherein the main housing further includes a second drive assembly and a flow regulating shaft disposed within the hot outlet conduit, an output of the second drive assembly being coupled to the flow regulating shaft.

8. The thermostatic water valve of claim 7, wherein the first, second, and third detection assemblies are identically configured;

9. The thermostatic water valve of claim 7, further comprising an integrated drive plate disposed on the main housing and a hall sensor disposed outside the first channel;

10. The thermostatic water valve of claim 6, further comprising a dual-mode diverter plug positionable within the diverter tube.