CN212297735U - Memory alloy constant temperature valve core - Google Patents
Memory alloy constant temperature valve core Download PDFInfo
- Publication number
- CN212297735U CN212297735U CN202020426345.4U CN202020426345U CN212297735U CN 212297735 U CN212297735 U CN 212297735U CN 202020426345 U CN202020426345 U CN 202020426345U CN 212297735 U CN212297735 U CN 212297735U
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- water
- ring
- hot water
- piston
- cold water
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Abstract
A memory alloy thermostatic valve core comprises an upper shell, a lower shell, an adjusting piece, a guide piece, a return spring and a memory alloy spring, wherein the adjusting piece is arranged at the upper end of the upper shell, the guide piece can be vertically moved and arranged in the upper shell, and the adjusting piece is in threaded connection with the guide piece; the cold water-proof ring and the hot water-proof ring are provided with water-proof sheets, the cross section of each water-proof sheet is L-shaped, the upper shell is provided with a hot water inlet groove, a hot water sealing water cavity and a piston cavity, the lower shell is provided with a cold water inlet groove, a cold water sealing water cavity, a mixed water cavity and a spring position, and the piston is provided with a cold water sealing ring groove, a hot water sealing water ring groove, a cold water-proof ring groove, a hot water-proof ring groove and a water through groove.
Description
Technical Field
The utility model belongs to the technical field of tap, especially, relate to a load in inside memory alloy constant temperature case of tap.
Background
The structure for adjusting the water inlet size of cold water and hot water in the existing common thermostatic valve core is that a piston capable of moving left and right is arranged in a valve core shell, a sealing ring is sleeved on the piston and used for isolating cold water and hot water, and the international standard of a thermostatic valve core faucet set for the safety of a user is achieved by tightly attaching the end surface of the piston to a water sealing surface in an upper shell or a lower shell, namely, when one end of the piston stops water suddenly, the other end of the piston automatically closes after a small amount of water in an allowable range flows out; the valve core shell and the piston are generally made of copper or plastic. The thermostatic cartridge made of the above structure or material has the following problems:
1. the sealing washer generally is the rubber material, has certain frictional resistance under normal conditions, causes the piston to remove the bite, and rubber material soaks the back for a long time, bloates easily, ages, can lead to frictional resistance bigger, makes constant temperature valve core inefficacy easily, and life is not long.
2. The sealing ring moves relatively along with the piston and the shell, impurities rush to the middle of the shell and the piston to rub, the sealing ring on the piston is easily cut, the service life of the sealing ring is greatly shortened, cold water and hot water are mixed after the sealing ring does not achieve the sealing effect, and the hot water or cold water stopping effect cannot be achieved when the cold water or the hot water does not exist.
3. Because of the influence of structure, material, the removal of piston always has great resistance, and the existence of this resistance can lead to the thermostatic cartridge effect of adjusting the temperature very poor, if adjust the temperature reaction rate slowly, goes out behind the water temperature high or low on the low side, generally needs 5 seconds to 8 seconds to reach predetermined constant temperature again, and the fluctuation process that suddenly changes is suddenly high also can appear in the process of adjusting the temperature, and this can influence the comfort level that the customer used this type of thermostatic cartridge tap.
4. In order to automatically close the piston after the hot water flows out of a small amount of water within an allowable range when cold water is suddenly stopped, two end faces of the piston and water sealing surfaces in the upper shell and the lower shell are required to be very flat, and the two end faces of the piston are required to be precisely ground in general, so that the production process and the process difficulty are increased.
5. Inside rivers need can flow into the case through the terminal surface of piston and last casing or the lower internal gap between the water face of sealing of casing, two terminal surfaces of piston all directly received into water's pressure, will appear when the pressure ratio of cold/hot water is higher than 2 that the error of adjusting the temperature is bigger and bigger, can not adjust the temperature at all even along with the higher error of adjusting the temperature of pressure ratio at cold/hot water can be bigger and bigger.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a temperature adjustment process is smooth and easy, and long service life ensures the memory alloy constant temperature case of constant temperature play water.
In order to realize the above-mentioned purpose, the utility model provides a memory alloy thermostatic cartridge, including last casing, lower casing, regulating part, guide, reset spring, memory alloy spring, the casing upper end is located to the regulating part, and the setting that the guide can reciprocate is in last casing, and regulating part spiro union in guide, its characterized in that: the piston, the cold water sealing water ring, the hot water sealing water ring, the cold water isolating ring and the hot water isolating ring are also included;
the cold water-proof ring and the hot water-proof ring are provided with water-proof sheets, the cross section of each water-proof sheet is L-shaped, the upper shell is provided with a hot water inlet groove, a hot water sealing water cavity and a piston cavity,
the lower shell is provided with a cold water inlet groove, a cold water sealing water cavity, a mixed water cavity and a spring position, and the piston is provided with a cold water sealing ring groove, a hot water sealing ring groove, a cold water-proof ring groove, a hot water-proof ring groove and a water through groove;
the cold water sealing ring is arranged in the cold water sealing ring groove, the hot water sealing ring is arranged in the hot water sealing ring groove, the cold water isolating ring is arranged in the cold water isolating ring groove, the hot water isolating ring is arranged in the hot water isolating ring groove, the piston is arranged in the piston cavity, the reset spring is arranged between the piston and the guide piece, the memory alloy spring is arranged in the mixed water cavity, the lower end of the memory alloy spring abuts against the spring, and the lower shell is fixed with the upper shell; the piston is abutted against the upper end of the memory alloy spring and can move in the piston cavity along the axial direction; the cold water sealing ring, the hot water sealing ring, the cold water isolating ring and the hot water isolating ring are made of elastic colloid;
when the adjusting piece is rotated to enable the guide piece to move upwards, the memory alloy spring enables the piston to move upwards, and the hot water sealing ring can be moved upwards completely into the hot water sealing cavity to the maximum extent;
when the adjusting piece is rotated to enable the guide piece to move downwards, the return spring enables the piston to move downwards, and the cold water sealing water ring can be completely moved downwards into the cold water sealing water cavity to the maximum extent;
as an improvement of the memory alloy thermostatic valve core of the utility model,
it is further characterized in that: the cold water sealing water ring, the hot water sealing water ring, the cold water isolating ring and the hot water isolating ring are integrated;
as the utility model discloses an improvement of memory alloy constant temperature valve core, its further characteristic is: the section of the water-proof sheet is W-shaped.
The utility model has the advantages that: compared with the prior art, the utility model has the advantages that;
1. the utility model provides a water proof circle and corresponding piston move the resistance very little in the piston chamber, and its removal sensitivity is very high, and during the temperature regulation, the fluctuation range of play water temperature is less, can react rapidly and adjust into constant temperature and go out water, lower or higher temperature's play water can not appear, and then has guaranteed constant temperature all the time and has gone out water effect.
2. The effective life who seals circle commonly used and correspond the piston only is half a year, and the utility model provides a water proof circle can use more than 10 years, has improved the life of the thermostatic cartridge of built-in this water proof circle greatly, reduces the user and changes the dress number of times, practices thrift the cost of life.
3. The utility model discloses an utilize the water seal circle to remove to make in the water seal chamber to seal the water circle and hug closely water seal intracavity wall and seal water, because the space of the water service trough on water seal chamber and the piston is very big relatively, and the water inlet between intake chamber and the water seal circle is less relatively, so water pressure most has been let out when rivers get into the piston inside, two terminal surfaces of piston do not directly receive the initial pressure of intaking, so the precision that adjusts the temperature when the intake pressure ratio of cold/hot water is higher than 20 also can not change.
In a word, the utility model provides a memory alloy constant temperature valve core has that accommodation process is smooth and easy, and long service life ensures that constant temperature goes out water, and production and processing is convenient simple, advantages such as range of application is wide.
Drawings
Fig. 1 is a schematic view of an adjusting member according to the present invention.
Fig. 2 is a schematic view of the guide of the present invention.
Fig. 3 is a schematic view of a cold water insulating ring according to a first embodiment of the present invention.
Fig. 4 is a schematic sectional view of a cold water insulating ring according to a first embodiment of the present invention.
Fig. 5 is a schematic view of a hot water insulating ring according to a first embodiment of the present invention.
Fig. 6 is a schematic sectional view of a hot water insulating ring according to a first embodiment of the present invention.
Fig. 7 is a schematic view of the cold water seal ring of the present invention.
Fig. 8 is a schematic view of the hot water sealing ring of the present invention.
Fig. 9 is a schematic view of a piston of the present invention.
Fig. 10 is a schematic cross-sectional view of a piston of the present invention.
Fig. 11 is a schematic view of a memory alloy spring according to the present invention.
Fig. 12 is a schematic view of the upper case of the present invention.
Fig. 13 is a schematic cross-sectional view of the upper case of the present invention.
Fig. 14 is a schematic view of the lower housing of the present invention.
Fig. 15 is a schematic cross-sectional view of the lower housing of the present invention.
Fig. 16 is a schematic sectional view of a first embodiment of the present invention.
Fig. 17 is a schematic sectional view of a second embodiment of the present invention.
Detailed description of the invention
Referring to fig. 3 and 4, the cold water isolating ring 3 is provided with a water isolating sheet 4 with an L-shaped section,
the section of the water-proof sheet 4 is W-shaped;
referring to fig. 5 and 6, the hot water isolation ring 5 is provided with a water isolation sheet 4 with an L-shaped section,
the section of the water-proof sheet 4 is W-shaped;
referring to fig. 9 and 10, the piston 8 is provided with a cold water sealing ring groove 9, a hot water sealing ring groove 10, a cold water isolating ring groove 11, a hot water isolating ring groove 12 and a water through groove 13;
referring to fig. 12 and 13, the upper housing 15 has a hot water inlet tank 16, a hot water sealing cavity 17, and a piston cavity 18;
referring to fig. 14 and 15, the lower housing 19 is provided with a cold water inlet groove 20, a cold water sealing water cavity 21, a mixed water cavity 22, and a spring position 23;
wherein, the cold water sealing ring 6, the hot water sealing ring 7, the cold water isolating ring 3 and the hot water isolating ring 5 are made of elastic colloid.
The memory alloy spring is a commonly used thermostatic valve element fitting in the prior art, the length of the memory alloy spring can be deformed in a stretching way along with the temperature change, and specific technical parameters of the memory alloy spring are known in the industry and are not described herein.
Referring to fig. 1 to 16, the adjusting member 1 is provided at the upper end of the upper case 15,
the guide part 2 can be vertically moved and arranged in the upper shell 15, the adjusting part 1 is in threaded connection with the guide part 2, the cold water sealing ring 6 is arranged in the cold water sealing ring groove 9, the hot water sealing ring 7 is arranged in the hot water sealing ring groove 10, the cold water-proof ring 3 is arranged in the cold water-proof ring groove 11, the hot water-proof ring 5 is arranged in the hot water-proof ring groove 12, the piston 8 is arranged in the piston cavity 18, the reset spring 24 is arranged between the piston 8 and the guide part 2, the memory alloy spring 14 is arranged in the mixed water cavity 22, the upper end of the memory alloy spring supports against the piston 8, the lower end of the memory alloy spring supports against the spring position 23, and the lower shell 19; wherein the piston 8 is axially displaceable in the piston chamber 18,
when the piston 8 moves axially, the water stop sheet 4 deforms in a compression mode; when the adjusting part 1 is rotated to enable the guide part 2 to move upwards, the memory alloy spring 14 enables the piston 8 to move upwards, and the hot water seal water ring 7 can be completely moved upwards into the hot water seal water cavity 17 to the maximum extent; when the adjusting part 1 is rotated to move the guide part 2 downwards, the return spring 24 moves the piston 8 downwards, and the cold water sealing ring 6 can be completely moved downwards into the cold water sealing cavity 21 to the maximum extent.
Cold water flows from the cold water inlet groove 20 through the cold water sealing water cavity 21 to flow to the mixed water cavity 22, hot water flows from the hot water inlet groove 16 through the hot water sealing water cavity 17, the water through groove 13 and the cold water sealing water cavity 21 to flow to the mixed water cavity 22, and after the cold/hot water is mixed in the mixed water cavity 22, the marmen spring 14 induces the temperature of the mixed water and pushes the adjusting piston 8;
when the memory alloy spring 14 senses that the temperature of the mixed water is higher than the set temperature, the memory alloy spring 14 stretches, the memory alloy spring 14 pushes the piston 8 to move towards the hot water sealing water cavity 17, the return spring 24 compresses, the relative opening degree of the cold water sealing ring 6 and the cold water inlet groove 20 is increased, and the relative opening degree of the hot water sealing ring 7 and the hot water inlet groove 16 is reduced; when the marmem spring 14 senses that the temperature of the mixed water is lower than the set temperature,
the marmem spring 14 contracts, the reset spring 24 expands, the reset spring 24 enables the piston 8 to move towards the cold water sealing water cavity 21, the relative opening degree of the cold water sealing water ring 6 and the cold water inlet groove 20 is reduced, and the relative opening degree of the hot water sealing water ring 7 and the hot water inlet groove 16 is increased; thereby controlling the flow rate of the cold/hot water entering the mixed water cavity 22 to ensure that the temperature of the outlet water is constant;
when cold water is suddenly stopped, the temperature of the water in the mixed water cavity 22 rises, the memory alloy spring 14 extends, the memory alloy spring 14 pushes the piston 8 to move towards the hot water sealing water cavity 17, the return spring 24 compresses, and the hot water sealing water ring 7 moves into the hot water sealing water cavity 17 to block the hot water inlet groove 16; on the contrary, when the hot water is cut off suddenly, the water temperature in the mixed water cavity 22 is reduced, the memory alloy spring 14 is contracted, the return spring 24 is expanded, the return spring 24 enables the piston 8 to move towards the cold water sealing cavity 21, and the cold water sealing ring 6 moves into the cold water sealing cavity 21 to block the cold water inlet groove 20.
Because the water-stop sheet 4 is arranged on the cold water-stop ring 3 and the hot water-stop ring 5, the section of the water-stop sheet 4 is W-shaped and elastic, and the thickness of the water-stop sheet 4 is only 20 to 30 threads, when the piston 8 moves axially, the water-stop sheet 4 can be compressed and deformed, so that the resistance of the piston 8 moving axially in the piston cavity 18 is very small, the movement sensitivity of the piston is very high, the fluctuation range of the outlet water temperature is small when the temperature is adjusted, the piston can be quickly adjusted into constant-temperature outlet water in a reaction mode, the outlet water with lower temperature or higher temperature cannot occur, and the constant-temperature outlet water effect is ensured all;
because the cold/hot water separation of the piston 8 is achieved by utilizing the pressure of water pressure on the water separation sheet 4 to expand the water separation sheet, if impurities rush to the water separation sheet 4, the water separation sheet 4 cannot be in hard friction with the impurities, and the impurities cannot cut the water separation sheet 4, so the water separation sheet 4 has long service life;
the utility model discloses an utilize hot water seal water ring 7 to remove to hug closely its inner wall and plug up hot water intake channel 16 or cold water seal water ring 6 and hug closely its inner wall and plug up cold water intake channel 20 and seal water in moving to cold water seal water cavity 21 in the hot water seal water cavity 17, because hot water seal water cavity 17, cold water seal water cavity 21, the space of water service trough 13 is very big relatively, and the clearance between cold water seal water ring 6 and the cold water intake channel 20, and the clearance between hot water seal water ring 7 and the hot water intake channel 16 is less relatively, so water pressure major part has been let out when rivers get into piston 8 inside, two terminal surfaces of piston 8 do not directly accept the initial pressure of intaking directly, so the precision that adjusts the temperature when the inlet pressure ratio of cold/hot water is higher than 20 can not change yet.
Detailed description of the invention
Referring to fig. 16 and 17, the cold water isolation ring 3 and the hot water isolation ring 5 in the second embodiment are only slightly different from the cold water isolation ring 3 and the hot water isolation ring 5 in the first embodiment in shape, the cold water isolation ring 3, the hot water isolation ring 5 and the piston 8 move together when the piston 8 moves in the axial direction in the second embodiment, and other specific operation modes and principles are the same as those in the first embodiment, and will not be described again.
Claims (3)
1. The utility model provides a memory alloy thermostatic valve core, includes casing, lower casing, regulating part, guide, reset spring, memory alloy spring, and the regulating part is located casing upper end, and the setting that the guide can reciprocate is in last casing, and the regulating part spiro union in guide, its characterized in that: the piston, the cold water sealing water ring, the hot water sealing water ring, the cold water isolating ring and the hot water isolating ring are also included;
the cold water-proof ring and the hot water-proof ring are provided with water-proof sheets, the cross section of each water-proof sheet is L-shaped, the upper shell is provided with a hot water inlet groove, a hot water sealing water cavity and a piston cavity,
the lower shell is provided with a cold water inlet groove, a cold water sealing water cavity, a mixed water cavity and a spring position, and the piston is provided with a cold water sealing ring groove, a hot water sealing ring groove, a cold water-proof ring groove, a hot water-proof ring groove and a water through groove;
the cold water sealing ring is arranged in the cold water sealing ring groove, the hot water sealing ring is arranged in the hot water sealing ring groove, the cold water isolating ring is arranged in the cold water isolating ring groove, the hot water isolating ring is arranged in the hot water isolating ring groove, the piston is arranged in the piston cavity, the reset spring is arranged between the piston and the guide piece, the memory alloy spring is arranged in the mixed water cavity, the lower end of the memory alloy spring abuts against the spring, and the lower shell is fixed with the upper shell; the piston is abutted against the upper end of the memory alloy spring and can move in the piston cavity along the axial direction; the cold water sealing ring, the hot water sealing ring, the cold water isolating ring and the hot water isolating ring are made of elastic colloid;
when the adjusting piece is rotated to enable the guide piece to move upwards, the memory alloy spring enables the piston to move upwards, and the hot water sealing ring can be moved upwards completely into the hot water sealing cavity to the maximum extent;
when the adjusting piece is rotated to enable the guide piece to move downwards, the return spring enables the piston to move downwards, and the cold water sealing water ring can be completely moved downwards into the cold water sealing water cavity to the maximum extent.
2. The memory alloy thermostatic valve cartridge of claim 1, wherein: the cold water sealing water ring, the hot water sealing water ring, the cold water isolating ring and the hot water isolating ring are integrated.
3. The memory alloy thermostatic valve cartridge of claim 1, wherein: the section of the water-proof sheet is W-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426345.4U CN212297735U (en) | 2020-03-13 | 2020-03-13 | Memory alloy constant temperature valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426345.4U CN212297735U (en) | 2020-03-13 | 2020-03-13 | Memory alloy constant temperature valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297735U true CN212297735U (en) | 2021-01-05 |
Family
ID=73960620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020426345.4U Expired - Fee Related CN212297735U (en) | 2020-03-13 | 2020-03-13 | Memory alloy constant temperature valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297735U (en) |
-
2020
- 2020-03-13 CN CN202020426345.4U patent/CN212297735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |