CN217927283U

CN217927283U - Water mixing valve

Info

Publication number: CN217927283U
Application number: CN202221694369.3U
Authority: CN
Inventors: 肖益华; 敖文琴
Original assignee: Shenzhen Mixi Intelligent Electric Appliance Technology Co ltd
Current assignee: Shenzhen Mixi Intelligent Electric Appliance Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-29
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a temperature regulation field relates to a mix water valve, including control system, a valve seat, case and step motor, be provided with first inlet channel on the disk seat, the second inlet channel, first outlet channel, second outlet channel, the case includes first potsherd and folds the second potsherd of locating on first potsherd, be provided with first through-hole on the first potsherd, the second through-hole, the third through-hole, the fourth through-hole, the fifth through-hole, the sixth through-hole, be provided with the muddy basin on the second potsherd, the second potsherd is connected with step motor, step motor drive second potsherd rotates on first potsherd and makes muddy basin and first through-hole, the second through-hole, the third through-hole, the fourth through-hole, the fifth through-hole, two or three through-hole intercommunication in the sixth through-hole, with the outlet temperature who mixes water valve, in order to adjust the outlet temperature of water valve, can also flow out through first outlet channel or second outlet channel with the interior remaining water system that it used in order to prevent to influence the regulation and control of mixing water valve to outlet temperature.

Description

Water mixing valve

Technical Field

The utility model relates to a temperature regulation field, more specifically say, relate to a mix water valve.

Background

The water mixing valve is used for mixing cold water and hot water, and comprises a valve body with a hot water inlet, a cold water inlet and a mixed water outlet, wherein a valve core is arranged at the junction of the middle part of the valve body. The existing water mixing valve on the market only has the function of outputting hot water, warm water and cold water, and cannot accurately regulate and control the temperature of the warm water. Especially, when not using for a long time, can remain a large amount of refrigerated warm water in the system pipeline of mixing water governing valve and its application, the temperature of mixing water governing valve output hot water and warm water can be influenced to these refrigerated warm water, influences user experience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water mixing valve for overcoming the defects and shortcomings of the prior art.

In order to achieve the above purpose, the technical solution adopted by the present invention is a water mixing valve, comprising a control system, a valve seat, a valve core arranged in the valve seat, and a stepping motor electrically connected to the control system, wherein the valve seat is provided with a first water inlet channel, a second water inlet channel, a first water outlet channel, and a second water outlet channel, the valve core comprises a first ceramic plate and a second ceramic plate stacked on the first ceramic plate, the first ceramic plate is provided with a first through hole, a second through hole, a third through hole, a fourth through hole, a fifth through hole, and a sixth through hole, the first through hole and the second through hole are communicated with the first water inlet channel, the third through hole and the fourth through hole are communicated with the second water inlet channel, the fifth through hole is communicated with the first water outlet channel, the sixth through hole is communicated with the second water outlet channel, a water mixing groove is formed in the second ceramic wafer, the second ceramic wafer is in transmission connection with the stepping motor, and the stepping motor drives the second ceramic wafer to rotate on the first ceramic wafer so that the water mixing groove is communicated with two or three of the first through hole, the second through hole, the third through hole, the fourth through hole, the fifth through hole and the sixth through hole;

the stepping motor drives the cam to rotate so that the convex part of the cam triggers the microswitch, and therefore the initial position of the rotation of the stepping motor is recorded.

Preferably, the water mixing groove is a T-shaped groove and eccentrically arranged on the second ceramic sheet, the water mixing groove comprises a communicating groove and a mixing groove, the communicating groove is perpendicular to the mixing groove to form the T-shaped groove, the mixing groove can be communicated with one of the fifth through hole and the sixth through hole, and the communicating groove can be communicated with one or two of the first through hole, the second through hole, the third through hole and the fourth through hole.

Preferably, the valve seat includes an upper cover and a lower cover, the upper cover is disposed on the lower cover to form an inner cavity for accommodating the valve element, the first water inlet channel, the second water inlet channel, the first water outlet channel and the second water outlet channel are disposed on the lower cover, a first water inlet area communicated with the first water inlet channel, a second water inlet area communicated with the second water inlet channel, a first water outlet area communicated with the first water outlet channel and a second water outlet area communicated with the second water outlet channel are disposed in the lower cover, the first water inlet area is disposed corresponding to the first through hole and the second through hole, the second water inlet area is disposed corresponding to the third through hole and the fourth through hole, the first water outlet area is disposed corresponding to the fifth through hole, and the second water outlet area is disposed corresponding to the sixth through hole.

Preferably, a first sealing ring is arranged in the inner cavity and arranged below the first ceramic chip, and a first water inlet communicated with the first water inlet area, a second water inlet communicated with the second water inlet area, a first water outlet communicated with the first water outlet area and a second water outlet communicated with the second water outlet area are arranged on the first sealing ring.

Preferably, the water mixing valve further comprises a transmission shaft, the stepping motor is arranged on the upper cover, an output shaft is arranged on the stepping motor and is clamped with the transmission shaft, a connecting support column is arranged on the transmission shaft, a jack matched with the connecting support column is arranged on the second ceramic piece, and the connecting support column is inserted into the jack to realize the connection of the transmission shaft and the second ceramic piece.

Preferably, the transmission shaft includes transmission portion and base, transmission portion set up in on the base, cover on be provided with transmission portion complex first spacing through-hole, transmission portion stretches out first spacing through-hole with step motor's output shaft, still the cover is equipped with waterproof rubber ring in the transmission portion, waterproof rubber ring with the inner wall butt of first spacing through-hole.

Preferably, the fifth through hole and the sixth through hole are symmetrically arranged, the first through hole and the second through hole are oppositely arranged on one side of the fifth through hole and one side of the sixth through hole, and the third through hole and the fourth through hole are oppositely arranged on the other side of the fifth through hole and the other side of the sixth through hole.

Preferably, a second sealing ring is sleeved on the outer side wall of the first ceramic plate.

Preferably, the mixing valve further comprises a temperature sensor for measuring the temperature of water, and the temperature sensor is arranged in the first water outlet area or the second water outlet area.

Preferably, be provided with in the transmission portion with step motor's output shaft matched with spacing hole, spacing downthehole elastic component that is provided with, the elastic component cover is located the lateral wall of step motor's output shaft, the end of step motor's output shaft is provided with the ladder face, the one end of elastic component with ladder face looks butt.

The utility model has the advantages that:

the utility model provides a mix water valve rotates through step motor drive second potsherd on first potsherd and makes mixing basin and first through-hole, the second through-hole, the third through-hole, the fourth through-hole, the fifth through-hole, two or three through-hole intercommunication in the sixth through-hole to the temperature of water that mixes water valve is adjusted to the precision, mix water valve can also flow its remaining water in the water route system who uses through first exhalant canal or second exhalant canal, in order to prevent to influence the regulation and control of mixing water valve to the temperature of water.

Drawings

Fig. 1 is an exploded view of a mixing valve according to the present invention;

fig. 2 is a schematic view of a second ceramic wafer of the water mixing valve of the present invention;

fig. 3 is a sectional view of the mixing valve of the present invention.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and only schematically illustrate the basic structure of the invention, and the direction of the present embodiment is based on the direction of fig. 1.

As shown in fig. 1, a water mixing valve includes a control system, a valve seat, a valve core disposed in the valve seat, and a stepping motor 2 electrically connected to the control system, wherein the valve seat is provided with a first water inlet channel 11, a second water inlet channel 12, a first water outlet channel 13, and a second water outlet channel 14, the valve core includes a first ceramic plate 3 and a second ceramic plate 4 stacked on the first ceramic plate 3, the first ceramic plate 3 is provided with a first through hole 31, a second through hole 32, a third through hole 33, a fourth through hole 34, a fifth through hole 35, and a sixth through hole 36, the first through hole 31, the second through hole 32 are communicated with the first water inlet channel 11, the third through hole 33, the fourth through hole 34 are communicated with the second water inlet channel 12, the fifth through hole 35 is communicated with the first water outlet channel 13, the sixth through hole 36 is communicated with the second water outlet channel 14, the second ceramic plate 4 is provided with a water mixing tank 5, the second ceramic plate 4 is in transmission with the stepping motor 2, and the third through hole 31, the sixth through hole 32 is connected to drive the stepping motor 2 to rotate the third through hole 32, the fourth through hole 34, and the fourth through hole 34, the sixth through hole 32.

Generally, the first water inlet channel 11 is used for flowing hot water, the second water inlet channel 12 is used for flowing cold water or warm water, the first water outlet channel 13 is used for flowing out mixed warm water or low-temperature water with undesirable return temperature or water body retained in a waterway system applying the mixing valve, and the second water outlet channel 14 is used for flowing back low-temperature water with undesirable return temperature or water body retained in the waterway system applying the mixing valve. The second outlet passage 14 can also discharge the mixed warm water.

Preferably, as shown in fig. 2, the water mixing groove 5 is a T-shaped groove and is eccentrically disposed on the second ceramic plate 4, the water mixing groove 5 includes a communication groove 51 and a mixing groove 52, the communication groove 51 is perpendicular to the mixing groove 52 to form the T-shaped groove, the mixing groove 52 can be communicated with one of the fifth through hole 35 and the sixth through hole 36, and the communication groove 51 can be communicated with one or two of the first through hole 31, the second through hole 32, the third through hole 33 and the fourth through hole 34.

Preferably, the valve seat includes an upper cover 15 and a lower cover 16, the upper cover 15 is disposed on the lower cover 16 to form an inner cavity for accommodating the valve element, the first water inlet channel 11, the second water inlet channel 12, the first water outlet channel 13 and the second water outlet channel 14 are disposed on the lower cover 16, a first water inlet region 161 communicated with the first water inlet channel 11, a second water inlet region 162 communicated with the second water inlet channel 12, a first water outlet region 163 communicated with the first water outlet channel 13, and a second water outlet region 164 communicated with the second water outlet channel 14 are disposed in the lower cover 16, the first water inlet region 161 is disposed corresponding to the first through hole 31 and the second through hole 32, the second water inlet region 162 is disposed corresponding to the third through hole 33 and the fourth through hole 34, the first water outlet region 163 is disposed corresponding to the fifth through hole 35, and the second water outlet region 164 is disposed corresponding to the sixth through hole 36.

Generally, the control system controls the rotation of the stepping motor 2 according to the set temperature, and if the hot water needs to flow out, the stepping motor 2 controls the rotation of the second ceramic plate 4, so that the communication groove 51 of the water mixing groove 5 is communicated with the first through hole 31, the mixing groove 52 is communicated with the fifth through hole 35, the hot water flows into the first water inlet area 161 from the first water inlet channel 11, further flows into the first through hole 31, then flows into the mixing groove 52 from the communication groove 51, finally flows into the first water outlet area 163 from the fifth through hole 35, and flows out through the first water outlet channel 13. Alternatively, the communication groove 51 of the water mixing tank 5 is communicated with the second through hole 32, the mixing groove 52 is communicated with the sixth through hole 36, and the hot water flows from the first water inlet channel 11 into the first water inlet area 161, further flows into the second through hole 32, then flows from the communication groove 51 to the mixing groove 52, finally flows from the sixth through hole 36 into the second water outlet area 164, and flows out through the second water outlet channel 14.

If the cold water needs to flow out, the stepping motor 2 controls the second ceramic plate 4 to rotate, so that the communication groove 51 of the water mixing tank 5 is communicated with the third through hole 33, the mixing groove 52 is communicated with the fifth through hole 35, and the cold water flows into the second water inlet area 162 from the second water inlet channel 12, further flows into the third through hole 33, then flows into the mixing groove 52 from the communication groove 51, finally flows into the first water outlet area 163 from the fifth through hole 35, and flows out through the first water outlet channel 13. Alternatively, the communication groove 51 of the water mixing tank 5 communicates with the fourth through hole 34, the mixing groove 52 communicates with the sixth through hole 36, and the cold water flows from the second water inlet passage 12 into the second water inlet region 162, further flows into the fourth through hole 34, flows from the communication groove 51 to the mixing groove 52, finally flows from the sixth through hole 36 into the second water outlet region 164, and flows out through the second water outlet passage 14.

If the mixed warm water needs to flow out, the stepping motor 2 controls the second ceramic plate 4 to rotate, so that the communication groove 51 of the water mixing tank 5 is respectively communicated with the first through hole 31 and the third through hole 33, the mixing groove 52 is communicated with the fifth through hole 35, the cold water flows into the second water inlet area 162 from the second water inlet channel 12 and then flows into the third through hole 33, then flows into the mixing groove 52 from the communication groove 51, the hot water flows into the first water inlet area 161 from the first water inlet channel 11 and then flows into the first through hole 31, then flows into the mixing groove 52 from the communication groove 51, and the cold water and the hot water are mixed in the mixing groove 52, finally flows into the first water outlet area 163 from the fifth through hole 35 and flows out through the first water outlet channel 13. Or, the communication groove 51 of the water mixing tank 5 communicates with the second through hole 32 and the fourth through hole 34, the mixing tank 52 communicates with the sixth through hole 36, the cold water flows from the second water inlet passage 12 into the second water inlet region 162, further flows into the fourth through hole 34, then flows from the communication groove 51 to the mixing tank 52, the hot water flows from the first water inlet passage 11 into the first water inlet region 161, further flows into the second through hole 32, then flows from the communication groove 51 to the mixing tank 52, the cold water and the hot water are mixed in the mixing tank 52, finally flows from the sixth through hole 36 into the second water outlet region 164, flows out through the second water outlet passage 14, finally flows from the sixth through hole 36 into the second water outlet region 164, and flows out through the second water outlet passage 14.

The mixing ratio of the cold water and the hot water can be adjusted according to the overlapping area of the communication groove 51 and the first through hole 31 and the overlapping area of the communication groove 51 and the first through hole 31, and the larger the overlapping area of the communication groove 51 and the first through hole 31 is, the smaller the overlapping area of the communication groove 51 and the third through hole 33 is, and the higher the temperature of the mixed cold water and hot water is; alternatively, the mixing ratio of the cold water and the hot water may be adjusted according to the overlapping area of the communication groove 51 with the second through hole 32 and the fourth through hole 34, respectively, and the larger the overlapping area of the communication groove 51 with the second through hole 32, the smaller the overlapping area of the communication groove 51 with the fourth through hole 34, and the higher the temperature of the mixed cold water and hot water.

If low-temperature water with the backflow temperature not meeting the requirement or water body retained in a waterway system using the mixing valve is needed, if the second water outlet channel 14 is set as a backflow channel, the backflow water body flows out from the second water outlet channel 14, and if the first water outlet channel 13 is set as a backflow channel, the backflow water body flows out from the first water outlet channel 13.

Preferably, a first sealing ring 6 is arranged in the inner cavity, the first sealing ring 6 is arranged below the first ceramic plate 3, and the first sealing ring 6 is provided with a first water inlet 61 communicated with the first water inlet area 161, a second water inlet 62 communicated with the second water inlet area 162, a first water outlet 63 communicated with the first water outlet area 163, and a second water outlet 64 communicated with the second water outlet area 164. The first sealing ring 6 can divide water inlet and outlet areas to prevent water body mixing flow and lead to uncertain water outlet temperature.

Preferably, the water mixing valve further comprises a transmission shaft 7, the stepping motor 2 is arranged on the upper cover 15, an output shaft 21 is arranged on the stepping motor 2, the output shaft 21 is clamped with the transmission shaft 7, a connecting support column 71 is arranged on the transmission shaft 7, a jack 41 matched with the connecting support column 71 is arranged on the second ceramic piece 4, and the connecting support column 71 is inserted into the jack 41 to connect the transmission shaft 7 and the second ceramic piece 4.

Preferably, the transmission shaft 7 includes a transmission portion 72 and a base 73, the transmission portion 72 is disposed on the base 73, the upper cover 15 is provided with a first limiting through hole 151 matched with the transmission portion 72, the transmission portion 72 extends out of the first limiting through hole 151 to be connected with the output shaft 21 of the stepping motor 2, the transmission portion 72 is further sleeved with a waterproof rubber ring 75, and the waterproof rubber ring 75 is abutted to the inner wall of the first limiting through hole 151. The waterproof rubber ring 75 can prevent water from flowing out of the first limit through hole 151.

Preferably, the fifth through hole 35 and the sixth through hole 36 are symmetrically disposed, the first through hole 31 and the second through hole 32 are disposed on one side of the fifth through hole 35 and one side of the sixth through hole 36, and the third through hole 33 and the fourth through hole 34 are disposed on the other side of the fifth through hole 35 and the other side of the sixth through hole 36.

The first through hole 31, the third through hole 33, and the fifth through hole 35 are respectively arranged symmetrically with the second through hole 32, the fourth through hole 34, and the sixth through hole 36.

Preferably, the water mixing valve further includes a micro switch 81 and a cam 8 engaged with the micro switch 81, the cam 8 is provided with a second limit through hole 82 engaged with the transmission portion 72, and the stepping motor 2 drives the cam 8 to rotate so that the convex portion of the cam 8 triggers the micro switch 81, thereby recording the initial position of the stepping motor 2 in rotation.

Preferably, a second sealing ring 37 is sleeved on the outer side wall of the first ceramic plate 3.

Preferably, the mixing valve further comprises a temperature sensor 9 for measuring the temperature of the water, and the temperature sensor 9 is arranged in the first outlet zone 163 or the second outlet zone 164. The temperature sensor 9 can detect the temperature of the water flowing out to feed back the water temperature to the control system, and the control system can control the stepping motor 2 to adjust the angle of rotating the second ceramic piece 4 according to the water temperature so as to improve the precision of the mixed water temperature. In addition, the temperature sensors 9 may be disposed within both the first exit area 163 and the second exit area 164.

Preferably, as shown in fig. 3, be provided with on the transmission part 72 with the spacing hole 74 of output shaft 21 matched with of step motor 2, be provided with elastic component 91 in the spacing hole 74, elastic component 91 cover is located the lateral wall of output shaft 21 of step motor 2, the end of output shaft 21 of step motor 2 is provided with ladder face 92, elastic component 91 one end with ladder face 92 looks butt. So that the stepping motor 2 can press the second ceramic plate 4 against the first ceramic plate 3 through the transmission shaft 7 and the elastic member 91. The elastic member 91 is a spring, and the elastic member 91 may be another elastic member such as elastic silicone rubber.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water mixing valve, including control system, its characterized in that: the water mixing valve further comprises a valve seat, a valve core arranged in the valve seat and a stepping motor (2) electrically connected with the control system, wherein a first water inlet channel (11), a second water inlet channel (12), a first water outlet channel (13) and a second water outlet channel (14) are arranged on the valve seat, the valve core comprises a first ceramic piece (3) and a second ceramic piece (4) overlapped on the first ceramic piece (3), a first through hole (31), a second through hole (32), a third through hole (33), a fourth through hole (34), a fifth through hole (35) and a sixth through hole (36) are arranged on the first ceramic piece (3), the first through hole (31) and the second through hole (32) are communicated with the first water inlet channel (11), the third through hole (33), the fourth through hole (34) are communicated with the second water inlet channel (12), the fifth through hole (35) is communicated with the first water outlet channel (13), the sixth through hole (36) is communicated with the second water outlet channel (14), the second through hole (5) is communicated with the second ceramic piece (4), the stepping motor (5) is connected with the second ceramic piece (3), and the stepping motor (5) drives the water mixing groove (2) to rotate, and the stepping motor (5) to drive the second ceramic piece (3) to rotate, two or three through holes of the second through hole (32), the third through hole (33), the fourth through hole (34), the fifth through hole (35) and the sixth through hole (36) are communicated;

the automatic stepping motor is characterized by further comprising a microswitch (81) and a cam (8) matched with the microswitch (81), wherein the cam (8) is in transmission connection with the stepping motor (2), and the stepping motor (2) drives the cam (8) to rotate so that a convex part of the cam (8) triggers the microswitch (81), so that the initial position of the rotation of the stepping motor (2) is recorded.

2. The mixing valve of claim 1, wherein: the water mixing tank (5) is a T-shaped tank and is eccentrically arranged on the second ceramic plate (4), the water mixing tank (5) comprises a communicating tank (51) and a mixing tank (52), the communicating tank (51) is perpendicular to the mixing tank (52) to form the T-shaped tank, the mixing tank (52) can be communicated with one of the fifth through hole (35) and the sixth through hole (36), and the communicating tank (51) can be communicated with one or two of the first through hole (31), the second through hole (32), the third through hole (33) and the fourth through hole (34).

3. The mixing valve of claim 2, wherein: the valve seat comprises an upper cover (15) and a lower cover (16), the upper cover (15) is arranged on the lower cover (16) in a covering mode to form an inner cavity used for containing the valve core, the first water inlet channel (11), the second water inlet channel (12), the first water outlet channel (13) and the second water outlet channel (14) are arranged on the lower cover (16), a first water inlet area (161) communicated with the first water inlet channel (11), a second water inlet area (162) communicated with the second water inlet channel (12), a first water outlet area (163) communicated with the first water outlet channel (13) and a second water outlet area (164) communicated with the second water outlet channel (14) are arranged in the lower cover (16), the first water inlet area (161) is arranged corresponding to the first through hole (31) and the second through hole (32), the second water inlet area (162) is arranged corresponding to the third through hole (33) and the fourth through hole (34), the first water inlet area (162) is arranged corresponding to the fifth through hole (163), and the sixth through hole (164) is arranged corresponding to the sixth through hole (35).

4. The mixing valve of claim 3, wherein: the inner cavity is internally provided with a first sealing ring (6), the first sealing ring (6) is arranged below the first ceramic piece (3), and the first sealing ring (6) is provided with a first water inlet (61) communicated with the first water inlet area (161), a second water inlet (62) communicated with the second water inlet area (162), a first water outlet (63) communicated with the first water outlet area (163) and a second water outlet (64) communicated with the second water outlet area (164).

5. The mixing valve of claim 4, wherein: still include transmission shaft (7), step motor (2) set up in on upper cover (15), be provided with output shaft (21) on step motor (2), output shaft (21) and transmission shaft (7) joint, be provided with connecting strut (71) on transmission shaft (7), be provided with on second ceramic wafer (4) with connecting strut (71) matched with jack (41), connecting strut (71) are inserted and are located in jack (41) in order to realize transmission shaft (7) with the connection of second ceramic wafer (4).

6. The mixing valve of claim 5, wherein: transmission shaft (7) include transmission portion (72) and base (73), transmission portion (72) set up in on base (73), be provided with on upper cover (15) with transmission portion (72) first spacing through-hole (151) of matched with, transmission portion (72) stretch out first spacing through-hole (151) with output shaft (21) of step motor (2) are connected, it is equipped with waterproof rubber ring (75) still to overlap on transmission portion (72), waterproof rubber ring (75) with the inner wall butt of first spacing through-hole (151).

7. The mixing valve of claim 6, wherein: fifth through-hole (35) and sixth through-hole (36) symmetry set up, first through-hole (31) and second through-hole (32) set up relatively in the one side of fifth through-hole (35) and sixth through-hole (36), third through-hole (33), fourth through-hole (34) set up relatively in the opposite side of fifth through-hole (35) and sixth through-hole (36).

8. The mixing valve of claim 7, wherein: and a second sealing ring (37) is sleeved on the outer side wall of the first ceramic piece (3).

9. The mixing valve of claim 8, wherein: and a temperature sensor (9) for measuring the temperature of the water, the temperature sensor (9) being arranged in the first outlet zone (163) or the second outlet zone (164).

10. The mixing valve of claim 9, wherein: be provided with on transmission portion (72) with output shaft (21) matched with spacing hole (74) of step motor (2), be provided with elastic component (91) in spacing hole (74), elastic component (91) cover is located the lateral wall of output shaft (21) of step motor (2), the end of output shaft (21) of step motor (2) is provided with ladder face (92), the one end of elastic component (91) with ladder face (92) looks butt.