CN109882615B - Swing type precision ceramic control valve - Google Patents

Abstract

The present invention discloses a swing-type precision ceramic control valve, in which a rotating seat is arranged inside a valve shell, a movable valve plate and a fixed valve plate are arranged in sequence inside the valve shell below the rotating seat, a valve stem extending upward from the valve shell is arranged in the center of the rotating seat, and a valve seat is combined below the valve shell to prevent the fixed valve plate, the movable valve plate and the rotating seat from falling out, and the valve seat is formed by an upper seat and a lower seat being relatively combined, and an accommodating space is provided inside the upper seat so that a temperature limiting device can be installed in the accommodating space, and the temperature limiting device includes a water distribution component, a cap, a support sleeve, a temperature sensor, a water stop sleeve and a spring.

Description

Swing type precision ceramic control valve

technical field

The invention belongs to the technical field of valves, and relates to a "swing-type precision ceramic control valve", in particular to a swing-type precision ceramic control valve capable of producing a constant temperature water outlet effect.

Background technique

In the prior art, the use of the faucet is mainly to use the valve stem of the precision ceramic control valve to provide operation through the handle, and when the handle drives the valve stem to rotate, the faucet can be operated to turn on and off the water, and the handle can also be used when the water source is turned on. Change the amplitude to adjust the mixing ratio of cold and hot water, and even only use hot water or cold water to flow out.

However, because the existing precision ceramic control valve does not have the functions of temperature sensing and temperature limiting, it is of course impossible to moderately cool the hot water by actively introducing cold water when the temperature of the hot water outlet is too high. The user is easily scalded by the hot water due to the careless operation, which is quite unsafe to use.

Therefore, in view of this, the inventor designed the invention based on years of experience, through various discussions and trial sample tests, and many revisions and improvements, to launch the present invention.

SUMMARY OF THE INVENTION

Technical problem to be solved:

The existing precision ceramic control valve cannot limit the outlet temperature of the hot water, so that the user is easily scalded by the outflowing high-temperature hot water, which is the technical problem to be solved by the present invention.

Problem-solving technical features:

The invention provides a swing type precision ceramic control valve. The precision ceramic control valve is provided with a rotary seat in a valve shell, and a movable valve plate and A fixed valve plate, the center of the rotating seat is provided with a valve stem extending upward from the valve shell, and the movable valve plate is locked by the rotating seat, and the movable valve plate can be driven to rotate through the operation of the valve stem through the rotating seat, and the movable valve plate can be used to use the movable valve plate to rotate. The change of the positional relationship with the fixed valve plate is used to control the faucet to open and close the water, or to change the mixing ratio of cold and hot water and the flow rate of the water outlet. Under the valve shell, a combination of valve seats is used to block the fixed valve plate, The movable valve plate and the rotating seat fall out, and the valve seat is formed by an upper seat and a lower seat facing each other. The upper seat has a accommodating space inside, so that the accommodating space is used for the installation of a temperature limiting device and the temperature limiting device. It includes a water separation piece, a cap, a support sleeve, a temperature sensor, a water stop sleeve and a spring, wherein the bottom surface of the movable valve plate is concave with a first cold water hole arranged in a diagonal shape. and a first hot water hole, the outside of the first cold water hole is connected with a first outer expansion part, the outside of the first hot water hole is connected with a second outer expansion part, and the first outer expansion part and the second outer expansion part are used. A second cold water hole and a second hot water hole pass through the center of the fixed valve plate, and one side of the second cold water hole is connected with a second cold water hole. The top surface of the valve plate is concavely provided with a third outer expansion part, and one side of the second hot water hole is connected with a fourth outer expansion part which is concavely arranged from the bottom surface of the fixed valve plate upward. On the outside of the second hot water hole, there are a first cold water circulation hole and a first hot water circulation hole passing through the fixed valve plate, and a first cold water circulation hole and a first hot water circulation hole are provided between one end of the first cold water circulation hole and the first hot water circulation hole. A cold water circulation hole is kept close to the first temperature adjustment hole, and the top surface of the upper seat of the valve seat penetrates a third cold water hole, a third hot water hole, a second cold water circulation hole, a second hot water circulation hole and a The second temperature adjustment hole, the lower seat of the valve seat is penetrated by a cold water inlet hole, a hot water inlet hole, at least a cold water outlet hole and a mixed water outlet hole, the cold water inlet hole and the hot water inlet hole are respectively It is used to connect the cold and hot water sources. When the fixed valve plate, the movable valve plate and the rotating seat contained in the valve shell are stacked in sequence, and the upper seat of the valve seat is used to provide the fixed valve plate, the movable valve plate and the rotating seat for bearing , in addition to allowing the fixed valve plate to be clamped on the top surface of the upper seat, the third cold water hole, the third hot water hole, the second cold water circulation hole, the second hot water circulation hole, the second adjustment hole of the upper seat The temperature holes are respectively aligned with the second cold water hole, the fourth outer expansion part, the first cold water flow hole, the first hot water flow hole and the first temperature adjustment hole of the fixed valve plate, and when the valve stem is not operated in a normal state , the first cold water hole and the first outer expansion part of the movable valve plate will avoid the first cold water flow hole and the first temperature regulation hole of the fixed valve plate, and the first hot water hole and the second outer expansion part will avoid the fixed valve The second hot water hole and the first hot water flow hole of the plate allow both cold and hot water to be blocked by the movable valve plate, and cannot flow out from the precision ceramic control valve through the faucet. Between the upper and lower seats of the valve seat, there is a third cold water hole conducting a fourth cold water hole for the water inlet hole, a fourth hot water hole for connecting the third hot water hole and the hot water inlet hole, and a third cold water flow hole for connecting the second cold water flow hole and the cold water outlet hole , a temperature control chamber that conducts the second hot water flow hole and the mixing outlet hole, and a third temperature control chamber that is recessed from the top surface of the water divider and aligned with the second temperature control hole of the upper seat The inner top edge of the temperature control chamber is used to provide a cap for installation, and between the third temperature adjustment hole and the lower part of the temperature control chamber, a cold water passage hole is used to pass through the third temperature adjustment hole and the temperature control chamber. To form mutual conduction, the cap is a closed cover body with an opening facing downward, the upper ring of its peripheral edge is provided with a plurality of hot water passing holes through the cap, and the spacer ring of the inner edge of the support sleeve is provided with several protruding claws , so that every two adjacent claws can become a water outlet channel. The support sleeve is combined in the mixed water outlet hole of the lower seat, and the protruding claws are used to carry the temperature sensor. The opening at one end of the temperature sensor is set in the middle. There is a mandrel, which is filled with chemical substances that can be thermally expanded and contracted due to changes in ambient temperature. After cooling, it can be restored to the original volume. The water stop jacket has a tubular body and a cover with an opening facing downward. The cover and the tubular body are inner and outer sleeves and then combined with a bottom edge. There are a plurality of water through holes on the edge, and the cover is used to provide the side of the temperature sensor with the ejector rod to penetrate, so that the water stop jacket can be properly covered on the temperature sensor, and the spring is supported on the cap and the temperature sensor. In the water-stop jacket room, the water-stop jacket is pushed under the normal state of retraction of the ejector rod, so that the tubular body of the water-stop jacket can stagger the hot water passage hole of the cap downward, and the hot water passage hole is not covered, but Using the support of the temperature sensor to raise the water stop jacket can also prevent the cold water passage hole of the water divider from being blocked by the tubular body of the water stop jacket, so that the cold water passage hole can always form a conduction with the water outlet channel of the support sleeve; Thus, the swing type fine ceramic control valve is constructed.

Compared with the prior art, it has the following beneficial effects:

In the swing type precision ceramic control valve of the present invention, when the handle is rotated too much or the pipeline lacks cold water for mixing, which causes the temperature sensor to heat up excessively, the ejector rod will be immediately filled in the temperature sensor. The chemical substance is pushed out, and the water stop sleeve is propped up by the ejector rod, so that the water stop sleeve can gradually reduce the aperture size of the hot water passage hole with the tubular body, or completely close the hot water passage hole. , the hot water with too high temperature can be moderately cooled and then flow out at a constant temperature, or the hot water can be completely turned off to avoid the danger of scalding the user due to careless operation. scald.

Description of drawings

Figure 1: A perspective combined view of the present invention.

Figure 2: An exploded perspective view of the present invention.

Figure 3: A detailed exploded view of the temperature limiting device of the present invention.

Figure 4: A perspective view of the movable valve plate of the present invention from another angle.

Figure 5: Sectional view of the movable valve plate of the present invention.

Figure 6: A perspective view of another angle of the fixed valve plate of the present invention.

Figure 7: A plan view of the fixed valve plate of the present invention.

Fig. 8 is a perspective view of the state of the bottom surface of the lower seat of the present invention.

Figure 9: A perspective view of the water dividing member of the present invention from another angle.

Figure 10: An enlarged perspective view of the water stop jacket of the present invention.

Fig. 11: The corresponding position diagram of the valve plate when the water is shut off according to the present invention.

Figure 12: The corresponding position diagram of the valve plate when the cold water is discharged according to the present invention.

Figure 13: A cross-sectional view of the present invention when the water is turned off.

Figure 14: The cross-sectional view of the present invention when the cold water is discharged.

Figure 15: Another angle sectional view of the present invention when the cold water is discharged.

Figure 16: The corresponding position diagram of the valve plate when the cold and hot water are mixed according to the present invention.

Figure 17: The flow state diagram of the present invention when cold and hot water are mixed.

Figure 18: Another angle flow state diagram of the present invention when cold and hot water are mixed.

Figure 19: The state diagram of the present invention that the hot water is blocked by the water stop jacket.

【Symbol Description】

Valve shell------10: Rotary seat-----11;

Stem------12;

Active valve piece----20; The first cold water hole---21;

The first external expansion part---211; The first hot water hole---22;

The second external expansion part---221;

Fixed valve piece----30; Second cold water hole---31;

The third external expansion part---311; the second hot water hole---32;

The fourth external expansion part---321; the first cold water circulation hole-33;

The first hot water circulation hole-34; the first temperature adjustment hole---35;

Valve seat------40; Upper seat------41;

The third cold water hole---411; the third hot water hole---412;

The second cold water circulation hole-413; the second hot water circulation hole-414;

The second thermostat hole---415; the lower seat------42;

Cold water inlet---421; Hot water inlet---422;

Cold water outlet---423; Mixed outlet---424;

Water channel----425;

Temperature limiting device-----50; Water divider-----51;

The fourth cold water hole---511; the fourth hot water hole---512;

The third cold water flow hole-513; Temperature control room-----514;

The third thermostat hole---515; cold water passage hole---516;

Cap------52; Hot water through hole---521;

Rib------522; Support sleeve-----53;

Claws------531; Water outlet----532;

Temperature sensor------54; ejector rod------541;

Chemicals----542; Waterstop----55;

Tubular body----551; Cover----552;

Bottom edge------553; water hole-----554;

Ring groove------555; Spring------56;

Waterstop ring-----57; Waterstop ring-----58.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

In order to enable your examiners to have a further understanding and understanding of the purpose, features and beneficial effects of the present invention, the technical solutions of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments:

Generally according to a preferred embodiment of the present invention, as shown in FIG. 1 to FIG. 11 and FIG. 13 , the present invention provides a swing type precision ceramic control valve. The precision ceramic control valve is provided with a valve housing 10 . The rotary seat 11 is provided below the rotary seat 11 with a movable valve plate 20 and a fixed valve plate 30 stacked in sequence inside the valve shell 10 , and a valve stem 12 extending upward from the valve shell 10 is provided in the center of the rotary seat 11 . The movable valve plate 20 can be locked by the rotating seat 11, and the movable valve plate 20 can be driven to rotate through the rotating seat 11 through the operation of the valve stem 12, and the faucet can be controlled by changing the corresponding positional relationship between the movable valve plate 20 and the fixed valve plate 30. To turn on and off the water, or to change the mixing ratio of cold and hot water and the flow rate of the water, a combination of a valve seat 40 is used under the valve shell 10 to prevent the fixed valve plate 30, the movable valve plate 20 and the rotating seat 11 from falling out. , and the valve seat 40 is formed by a combination of an upper seat 41 and a lower seat 42. The upper seat 41 has a accommodating space inside, so that the accommodating space is used for the installation of a temperature limiting device 50, and the temperature limiting device 50 includes a The water divider 51, a cap 52, a support sleeve 53, a temperature sensor 54, a water stop sleeve 55 and a spring 56, wherein the bottom surface of the movable valve plate 20 is concave with a diagonal shape. A first cold water hole 21 and a first hot water hole 22, a first outer expansion portion 211 is connected to the outside of the first cold water hole 21, and a second outer expansion portion 221 is connected to the outer side of the first hot water hole 22. The first outer expansion portion 211 and the second outer expansion portion 221 are used to increase the coverage of the first cold water hole 21 and the first hot water hole 22 , and a second cold water hole 31 and a first hot water hole 30 penetrate through the center of the fixed valve plate 30 . Two hot water holes 32, one side of the second cold water hole 31 is connected with a third outer expansion portion 311 recessed from the top surface of the fixed valve plate 30 downward, and one side of the second hot water hole 32 is connected with a The bottom surface of the fixed valve plate 30 is formed with a concave fourth outward expansion portion 321, and the third outward expansion portion 311 and the outside of the second hot water hole 32 are respectively provided with a first cold water flow hole 33 and a The first hot water flow hole 34, and a first temperature adjustment hole 35 kept moderately close to the first cold water flow hole 33 between the first cold water flow hole 33 and one end of the first hot water flow hole 34, and the valve seat 40 A third cold water hole 411, a third hot water hole 412, a second cold water circulation hole 413, a second hot water circulation hole 414 and a second temperature adjustment hole 415 penetrate through the top surface of the upper seat 41 of the valve seat 40. The lower seat 42 penetrates through a cold water inlet hole 421, a hot water inlet hole 422, at least one cold water outlet hole 423 and a mixed water outlet hole 424. The cold water inlet hole 421 and the hot water inlet hole 422 are respectively used for Connecting the cold and hot water sources, when the fixed valve plate 30, the movable valve plate 20 and the rotating seat 11 contained in the valve shell 10 are stacked in sequence, the upper seat 41 of the valve seat 40 is used to provide the fixed valve plate 30 and the movable valve plate 20. When the rotating seat 11 is loaded, not only the fixed valve plate 30 can be clamped on the top surface of the upper seat 41, but also the third cold water hole 411 of the upper seat 41, The third hot water hole 412 , the second cold water circulation hole 413 , the second hot water circulation hole 414 , and the second temperature adjustment hole 415 are respectively connected with the second cold water hole 31 , the fourth outer expansion portion 321 , the first cold water hole 31 of the fixed valve plate 30 , the first The cold water flow hole 33 , the first hot water flow hole 34 , and the first temperature adjustment hole 35 are aligned, and when the valve stem 12 is not operated, the first cold water hole 21 of the movable valve plate 20 and the first outward expansion part 211 will avoid the first cold water flow hole 33 and the first temperature adjustment hole 35 of the fixed valve plate 30 , the first hot water hole 22 and the second external expansion portion 221 will avoid the second hot water of the fixed valve plate 30 . The hole 32 and the first hot water flow hole 34 allow both cold and hot water to be blocked by the movable valve plate 20, and cannot flow out from the precision ceramic control valve through the faucet. Between the upper seat 41 and the lower seat 42 of the seat 40, there is a fourth cold water hole 511 that conducts the third cold water hole 411 and the cold water inlet hole 421, and the third hot water hole 412 and the hot water inlet hole 422. a fourth hot water hole 512, a third cold water flow hole 513 that conducts the second cold water flow hole 413 and the cold water outlet hole 423, and a temperature control chamber that conducts the second hot water flow hole 414 and the mixed water outlet 424 514, and a third temperature adjustment hole 515 which is concave from the top surface of the water dividing member 51 and is aligned with the second temperature adjustment hole 415 of the upper seat 41. The inner top edge of the temperature control chamber 514 is used for For the cap 52 to be installed, a cold water passage hole 516 is used between the third temperature adjustment hole 515 and the lower part of the temperature control chamber 514 so that the third temperature adjustment hole 515 and the temperature control chamber 514 can be connected to each other. The cap 52 is a closed cover body with an opening facing downward, a plurality of hot water passage holes 521 are arranged on the upper periphery of the cap 52, and a plurality of protruding claws 531 are arranged on the inner edge of the support sleeve 53. A water outlet channel 532 can be formed between every two adjacent claws 531. The support sleeve 53 is combined in the mixed water outlet hole 424 of the lower seat 42, and the protrusion of the claws 531 is used to carry the temperature sensor 54. The temperature sensor A mandrel 541 is set in the opening at one end of 54, and the inside is filled with a chemical substance 542 that can be thermally expanded and contracted by changes in ambient temperature. 542 is largely pushed out, and the chemical substance 542 can return to its original volume after cooling. The water stop jacket 55 has a tubular body 551 and a cover 552 with an opening facing downward. The cover 552 and the tubular body 551 is the inner and outer sleeves and then combined with a bottom edge 553, and the bottom edge 553 has a plurality of water through holes 554 at intervals, and the cover 552 is used to provide the temperature sensor 54 with the top rod 541. After entering, the water-stop sleeve 55 can be properly covered on the temperature sensor 54, and the spring 56 is supported between the cap 52 and the water-stop sleeve 55, so that the water-stop sleeve 55 can be adjusted under the normal state that the ejector rod 541 is retracted. Push up, so that the tubular body 551 of the water stop jacket 55 can stagger the hot water passage hole 521 of the cap 52 downward, and the hot water passage hole 521 is not allowed. 521 forms a shield, and the water stop jacket 55 is elevated by the support of the temperature sensor 54, which can also prevent the cold water passage hole 516 of the water divider 51 from being blocked by the tubular body 551 of the water stop jacket 55, allowing cold water to pass through the hole 516. It can always form a conduction with the water outlet channel 532 of the support sleeve 53 .

Using the above structure, the precision ceramic control valve is installed in the valve chamber of the faucet, and the handle is externally connected with the valve stem 12. When the handle is rotated, the valve stem 12 will drive the movable valve plate 20 to rotate through the rotating seat 11. Through the movable valve plate The first cold water hole 21 and the first outer expansion part 211 of the 20 are aligned with the third outer expansion part 311 and the first cold water flow hole 33 of the fixed valve plate 30 at the same time, so that the cold water inlet hole 421 and the fourth cold water hole 511 , the third cold water hole 411, the second cold water hole 31, and the third outer expansion part 311 send the cold water into the precision ceramic control valve through the transfer of the first cold water hole 21 and the first outer expansion part 211, and then from the first cold water hole 21 and the first outer expansion part 211. The cold water circulation hole 33, the second cold water circulation hole 413, the third cold water circulation hole 513, and the cold water outlet hole 423 flow out through the faucet. The water hole 22, the second external expansion part 221 and the second hot water hole 32 are aligned, so that the hot water can be prevented from flowing out of the precision ceramic control valve through the faucet.

In the process of water discharge, if you want to use warm water, the handle is continuously rotated in the same direction, and the first hot water hole 22 and the second outer expansion part 221 of the movable valve plate 20 are aligned with the second hole of the fixed valve plate 30 at the same time. The hot water hole 32 and the first hot water flow hole 34 allow the hot water inlet hole 422 , the fourth hot water hole 512 , the third hot water hole 412 and the second hot water hole 32 to enter the precision ceramic control valve. The hot water can pass through the transfer of the first hot water hole 22 and the second outer expansion portion 221 , and then the hot water from the first hot water circulation hole 34 , the second hot water circulation hole 414 , and the cap 52 in the temperature control chamber 514 Through the hole 521, the water through hole 554 of the water stop sleeve 55, the water outlet channel 532 of the support sleeve 53, and the mixed water outlet hole 424 flow out through the faucet, and because the handle continues to rotate, the first cold water hole 21 of the movable valve plate 20 will be connected to the The first outward expansion part 211 is changed to be aligned with the second cold water hole 31 and the first temperature adjustment hole 35 of the fixed valve plate 30, so the cold water inlet hole 421, the fourth cold water hole 511, the third cold water hole 411, the The cold water fed into the precision ceramic control valve from the second cold water hole 31 can also pass through the first cold water hole 21 and the first external expansion part 211, and then from the first temperature adjustment hole 35, the second temperature adjustment hole 415, the third temperature adjustment hole The warm hole 515 and the cold water are actively introduced into the support sleeve 53 through the hole 516, so that the cold and hot water can be mixed into warm water in the support sleeve 53 and then flow out together. Please refer to Figures 16 to 18 at the same time, and When the handle is rotated too much or the pipeline lacks cold water for mixing, causing the temperature sensor 54 to heat up excessively, the ejector rod 541 will be immediately pushed out by the chemical substance 542 filled in the temperature sensor 54, The mandrel 541 supports the water-stop sleeve 55, so that the water-stop sleeve 55 can gradually reduce the diameter of the hot water passage hole 521 of the cap 52 with the tubular body 551, or completely close the hot water passage hole 521, please refer to the figure As shown in 19, in this way, the hot water with too high temperature can be moderately cooled and then flow out at a constant temperature, or the hot water can be completely turned off to avoid the danger of scalding the user due to careless operation, and it can also be used to prevent A scene in which a young child gets scalded by playing with a faucet out of curiosity.

The present invention provides a swing type precision ceramic control valve, wherein the first cold water flow hole 33 has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion are pierced and fixed in a mutually dislocated and conductive manner. The top and bottom surfaces of the valve plate 30 .

The present invention provides a swing type precision ceramic control valve, wherein the first hot water flow hole 34 has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion penetrate through each other in a dislocated manner. The top and bottom surfaces of the valve plate 30 are fixed.

The present invention provides a swing type precision ceramic control valve, wherein the first temperature adjustment hole 35 has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion are pierced through and fixed in a mutually dislocated manner. The top and bottom surfaces of the valve plate 30 .

The present invention provides a swing type precision ceramic control valve, wherein the lower seat 42 of the valve seat 40 has a water flow channel 425 which is kept opposite to the third cold water flow hole 513 of the water dividing member 51, and at least the water flow channel 425 has a A cold water outlet hole 423 runs through one end.

The present invention provides a swing type precision ceramic control valve, wherein the upper section of one side of the temperature control chamber 514 is configured to penetrate outward.

The present invention provides a swing type precision ceramic control valve, wherein the cap 52 is locked in the temperature control chamber 514 of the water dividing member 51 .

The present invention provides a swing-type precision ceramic control valve, wherein the periphery of the cap 52 is provided with a plurality of ribs 522 protruding upward from the top surface of the cap 52, and separated by the ribs 522, the hot water can be smoothly The hot water at the periphery of the cap 52 flows into the cap 52 through the holes 521 through the gaps between the ribs 522 .

The present invention provides a swing type precision ceramic control valve, wherein a water stop ring 57 and a water stop ring 58 are sleeved under the cap 52 in the temperature control chamber 514 .

The present invention provides a swing type precision ceramic control valve, wherein the support sleeve 53 is locked in the mixing outlet hole 424 of the lower seat 42 .

The present invention provides a swing type precision ceramic control valve, wherein the temperature at which the chemical substance 542 begins to expand when heated is set at forty degrees Celsius.

The present invention provides a swing type precision ceramic control valve, wherein a ring groove 555 can be formed between the casing 552 and the upper part of the tubular body 551 by using the inner and outer sleeves of the casing 552 and the tubular body 551, so that the The ring groove 555 is used for one end of the spring 56 to be inserted and then supported on the bottom edge 553, and the diameter of the spring 56 is significantly smaller than the bottom edge 553 of the ring groove 555, so as to avoid improper water passage holes 554 after the spring 56 is inserted. 's covering.

The specific embodiments described above are only the preferred embodiments of the present invention, and the purpose, technical solutions and beneficial effects of the present invention are further described in detail. It should be understood that the above descriptions are only specific examples of the present invention. The embodiments are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A swing type precision ceramic control valve, the precision ceramic control valve is provided with a rotary seat inside a valve shell, and a movable valve plate is arranged in sequence in the valve shell below the rotary seat. and a fixed valve plate, the center of the rotating seat is provided with a valve stem extending upward from the valve shell, and the rotating seat is used to fasten the movable valve plate, and the rotating seat can pass through the rotating seat through the operation of the valve stem. Drive the movable valve plate to rotate, and use the change of the corresponding positional relationship between the movable valve plate and the fixed valve plate to control the faucet to open and close the water, or change the mixing ratio of cold and hot water and the flow rate of the water. The lower part of the valve shell uses the combination of a valve seat to prevent the fixed valve plate, the movable valve plate and the rotating seat from falling out, and the valve seat is formed by an upper seat and a lower seat facing each other. accommodating space, so that the accommodating space is used for the installation of a temperature limiting device, and the temperature limiting device includes a water divider, a cap, a support sleeve, a temperature sensor, a water stop jacket and a spring, wherein : A first cold water hole and a first hot water hole arranged in a diagonal shape are concave upward on the bottom surface of the movable valve plate. A second outer expansion part is connected on the outside, and the coverage of the first cold water hole and the first hot water hole is enlarged by the arrangement of the first outer expansion part and the second outer expansion part; There is a second cold water hole and a second hot water hole running through the center of the fixed valve plate, and a third outward expansion part is concavely arranged downward from the top surface of the fixed valve plate on one side of the second cold water hole. One side of the second hot water hole is connected with a fourth outward expansion part concave from the bottom surface of the fixed valve plate upward, and the third outward expansion part and the outer side of the second hot water hole are respectively provided with through the fixed valve A first cold water circulation hole and a first hot water circulation hole of the sheet, and between the first cold water circulation hole and one end of the first hot water circulation hole, there is a first cold water circulation hole that is kept moderately close to the first cold water circulation hole. thermostat hole; A third cold water hole, a third hot water hole, a second cold water circulation hole, a second hot water circulation hole and a second temperature adjustment hole penetrate through the top surface of the upper seat of the valve seat, and the lower seat of the valve seat is There is a cold water inlet hole, a hot water inlet hole, at least one cold water outlet hole and a mixed water outlet hole. The cold water inlet hole and the hot water inlet hole are respectively used to connect the cold and hot water sources. The fixed valve plate, the movable valve plate and the rotating seat inside the valve shell are stacked in sequence. The valve plate can be clamped on the top surface of the upper seat, and the third cold water hole, the third hot water hole, the second cold water circulation hole, the second hot water circulation hole and the second temperature adjustment hole of the upper seat can also be made. They are aligned with the second cold water hole, the fourth outer expansion part, the first cold water circulation hole, the first hot water circulation hole, and the first temperature adjustment hole of the fixed valve piece, respectively, and when the valve stem is not operated Under normal conditions, the first cold water hole and the first outward expansion part of the movable valve plate will avoid the first cold water flow hole and the first temperature adjustment hole, the first hot water hole and the second outward expansion part of the fixed valve plate. Open the second hot water hole and the first hot water flow hole of the fixed valve plate, so that both cold and hot water are blocked by the movable valve plate, and cannot flow out from the precision ceramic control valve through the faucet; The water dividing member of the temperature limiting device is installed between the upper and lower seats of the valve seat, and has a fourth cold water hole that conducts the third cold water hole and the cold water inlet hole, and conducts the third cold water hole. a fourth hot water hole for the water hole and the hot water inlet hole, a third cold water flow hole for connecting the second cold water flow hole and the cold water outlet hole, and a third hot water flow hole for connecting the second hot water flow hole and the mixed water outlet a temperature control chamber of the hole, and a third temperature control hole which is recessed from the top surface of the water divider and kept aligned with the second temperature control hole of the upper seat. The interior of the temperature control chamber The top edge is used for the installation of the cap, and between the third temperature adjustment hole and the lower part of the temperature control chamber, a cold water passage hole is used to penetrate through the third temperature adjustment hole and the temperature control chamber so that the third temperature adjustment hole and the temperature control chamber can form each other. The cap is a closed cover body with an opening facing downward, the upper ring of its peripheral edge is provided with a plurality of hot water passage holes penetrating the cap, and the spacer ring on the inner edge of the support sleeve is provided with several protruding claws, allowing A water outlet channel can be formed between every two adjacent claws. The support sleeve is combined in the mixed water outlet hole of the lower seat, and the protrusion of the claws is used to provide the temperature sensor to be placed on the load and feel comfortable. A mandrel is set in the opening at one end of the thermostat, and the inside is filled with a chemical substance that can be thermally expanded and contracted due to changes in ambient temperature. The chemical substance is largely pushed out, and the chemical substance can return to its original volume after cooling. The water stop jacket has a tubular body and a cover with an opening facing downward. The outer casing is then combined with a bottom edge, and the bottom edge has a plurality of water through holes at intervals, and the cover is used for the side of the temperature sensor with the top rod to penetrate, so that the The water-stop jacket can be appropriately covered on the temperature sensor, and the spring is supported between the cap and the water-stop jacket to push the water-stop jacket when the ejector rod is retracted. The tubular body of the water stop jacket can stagger the hot water passage hole of the cap downward, and the hot water passage hole is not shielded, and the water stop jacket is raised by the support of the temperature sensor, It is also possible to prevent the cold water passage hole of the water dividing member from being blocked by the tubular body of the water stop jacket, so that the cold water passage hole can always be in conduction with the water outlet channel of the support sleeve. 2 . The swing type precision ceramic control valve according to claim 1 , wherein the first cold water flow hole has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion are guided by mutual misalignment. 3 . The top and bottom surfaces of the fixed valve plate are penetrated in a way of passing through. 3 . The swing type precision ceramic control valve according to claim 1 , wherein the first hot water circulation hole has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion are mutually displaced. 4 . The conduction mode runs through the top and bottom surfaces of the fixed valve sheet. 4 . The swing type precision ceramic control valve according to claim 1 , wherein the first temperature regulating hole has an upper hole portion and a lower hole portion, and the upper hole portion and the lower hole portion are guided by mutual misalignment. 5 . The top and bottom surfaces of the fixed valve plate are penetrated in a way of passing through. 5. The swing type precision ceramic control valve according to claim 1, wherein the lower seat of the valve seat has a water flow channel which is kept opposite to the third cold water flow hole of the water dividing member, and the water flow channel At least one end of the cold water outlet is penetrated. 6 . The swing type precision ceramic control valve according to claim 1 , wherein an upper section of one side of the temperature control chamber is configured to penetrate outward. 7 . 7. The swing type precision ceramic control valve according to claim 1, wherein the cap is locked in the temperature control chamber of the water dividing member. 8 . The swing type precision ceramic control valve according to claim 1 , wherein a plurality of ribs protruding upward from the top surface of the cap are provided on the periphery of the cap, and the ribs are spaced to make the The hot water can smoothly flow into the cap through the gaps between the ribs through the hot water passage holes on the periphery of the cap. 9 . The swing type precision ceramic control valve according to claim 1 , wherein the support sleeve is locked in the mixing outlet hole of the lower seat. 10 . 10 . The swing type precision ceramic control valve according to claim 1 , wherein an annular groove can be formed between the casing and the upper part of the tubular body by using the inner and outer sleeves of the casing and the tubular body. 11 .

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