CN210218782U - Thermostatic valve core of accurate temperature sensing - Google Patents
Thermostatic valve core of accurate temperature sensing Download PDFInfo
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- CN210218782U CN210218782U CN201920724433.XU CN201920724433U CN210218782U CN 210218782 U CN210218782 U CN 210218782U CN 201920724433 U CN201920724433 U CN 201920724433U CN 210218782 U CN210218782 U CN 210218782U
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Abstract
A precise temperature-sensing thermostatic valve core comprises a valve shell provided with a hot water inlet, a cold water inlet and a mixed water outlet, wherein a mixed water cavity is arranged inside the valve shell, and the hot water inlet, the cold water inlet and the mixed water outlet are communicated with the mixed water cavity; the temperature-sensing movable valve core is positioned in the valve shell and comprises a temperature-sensing element and a piston which is arranged in a linkage manner with the temperature-sensing element, the piston can move in the valve shell and is used for adjusting the sizes of the hot water inlet and the cold water inlet, and a temperature-sensing rod positioned in the water mixing cavity is arranged at the lower part of the temperature-sensing element; the method is characterized in that: the piston is internally provided with a water outlet direction control structure, the water outlet direction control structure enables water flowing out of the piston to rotate towards the same direction and enter the water mixing cavity, and one of the hot water inlet and the cold water inlet is communicated with the water mixing cavity through the water outlet direction control structure. The utility model relates to a thermostatic cartridge of accurate temperature sensing makes cold, hot water mix more fully, and the temperature that the temperature sensing element sensed is little with the deviation of actual temperature, realizes accurate accuse temperature.
Description
Technical Field
The utility model relates to a thermostatic cartridge field especially relates to a thermostatic cartridge of accurate temperature sensing.
Background
As a core device for regulating water temperature, the thermostatic valve core is widely applied to a thermostatic water heater and a thermostatic faucet. When the water pressure of hot water or cold water changes suddenly or the temperature of hot water changes suddenly, the thermostatic regulating valve core can automatically balance the water pressure of the cold water and the hot water in a short time, so that the temperature of mixed water can be automatically kept at a set temperature to keep the temperature of outlet water stable.
Chinese utility model patent No. CN200420045079.1, entitled "temperature-sensing movable valve element of thermostatic valve", discloses a temperature-sensing movable valve element and a thermostatic valve element using the same, wherein the temperature-sensing movable valve element comprises a piston disposed in the thermostatic valve element, a counter bore is disposed at the center of the piston, one end of the counter bore is fixedly connected with a temperature-sensing rod, the temperature-sensing rod is filled with a heat-sensitive material, the other end of the counter bore is fixedly connected with a valve rod seat, and a slidable valve rod is installed in a through hole of the valve rod seat; and circular water passing holes are distributed on the piston along the circumference. The temperature-sensing movable valve element is arranged in a cavity inside the valve shell of the thermostatic valve element, the side wall of the valve shell is provided with a hot water inlet and a cold water inlet which are respectively positioned at two ends of the piston, and the bottom end of the valve shell is also provided with a mixed water outlet communicated with the mixed water cavity; cold water flows into the water mixing cavity from the cold water inlet and then enters the water mixing cavity through the water hole, hot water enters the water mixing cavity from the hot water inlet, and the temperature sensing rod senses the temperature of the water mixing cavity and reacts in time. This water hole setting of crossing is at the piston circumference, the play water direction irregularity when cold water gets into the chamber of mixing through circular water hole, lead to refrigerate, hot water is difficult to fully mix in the short time, cause the temperature uneven in the chamber of mixing water, and the temperature sensing stick that is located the piston center belongs to high-accuracy component, the temperature that can cause the temperature sensing stick to sense is great with the actual temperature deviation of mixing water, and then produces the temperature regulating signal who has the deviation, lead to from the delivery port water temperature that flows too high or low excessively, influence the user and use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a constant temperature valve core that thereby can make cold, hot water mix more fully, the temperature is even realizes accurate temperature sensing is provided to foretell technical current situation, and the temperature that the temperature-sensing element sensed is more close true mixed water temperature, promotes the accurate accuse temperature of constant temperature valve core, and it is little to go out water temperature fluctuation range.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a thermostatic cartridge with accurate temperature sensing comprises
The water mixing valve is characterized in that a valve shell is provided with a hot water inlet, a cold water inlet and a water mixing outlet, a water mixing cavity is arranged inside the valve shell, and the hot water inlet, the cold water inlet and the water mixing outlet are communicated with the water mixing cavity;
the temperature-sensing movable valve element is positioned in the valve shell and comprises a temperature-sensing element and the piston which is arranged in a linkage manner with the temperature-sensing element, the piston can move in the valve shell and is used for adjusting the sizes of the hot water inlet and the cold water inlet, and a temperature-sensing rod positioned in the water mixing cavity is arranged at the lower part of the temperature-sensing element;
the method is characterized in that:
the piston is internally provided with a water outlet direction control structure, the water outlet direction control structure enables water flowing out of the piston to rotate towards the same direction and enter the water mixing cavity, and one of the hot water inlet and the cold water inlet is communicated with the water mixing cavity through the water outlet direction control structure.
As an improvement, the water outlet direction control structure is a plurality of longitudinal water passing channels arranged in the piston, one end of the cross section of each water passing channel in the length direction is a near end which is radial upward relative to the center of the piston, the other end of the cross section of each water passing channel is a far end which is radial upward relative to the center of the piston, the near end of each water passing channel is close to the far end of the adjacent water passing channel, and the far end of each water passing channel is close to the near end of the adjacent water passing channel. The longitudinal direction refers to a direction extending from top to bottom as a whole, and may be the same as the axial direction of the thermostatic cartridge or may have a certain inclination with respect to the axial direction. The water outlet direction control structure is formed by rotating a longitudinal water passing channel towards the clockwise direction or the anticlockwise direction by taking the center of the piston as a rotating center.
As an improvement, the cross section of the water passing channel is one of a prism, a rectangle, a trapezoid, an ellipse and a rack. It is understood that the cross section of the water passage may have other irregular patterns as long as one end of the water passage is a proximal end in a radial direction with respect to the center of the piston and the other end of the water passage is a distal end in the radial direction with respect to the center of the piston in the length direction of the cross section of the water passage.
As another specific design of the water outlet direction control structure, the water outlet direction control structure is a plurality of longitudinal water passing channels arranged in the piston, and the water passing channels are obliquely arranged towards the same direction.
One of hot water and cold water is another kind in the hot water and the cold water two of impact in the rotatory entering of piston towards same direction mixes the water cavity, makes the mixed water in mixing the water cavity rotatory towards same direction to accelerate the mixture of cold water and hot water, make hot water and cold water in mixing the water cavity at the short time intensive mixing, the temperature is more even, and the temperature that the temperature sensing stick that is arranged in mixing the water cavity sensed reduces with actual temperature deviation, improves the temperature sensing precision of temperature sensing stick.
As an improvement, a water mixing channel with one end communicated with the water mixing cavity is further arranged in the valve shell, the water mixing outlet is arranged at the other end of the water mixing channel, and one end of the temperature sensing rod extends into the water mixing channel; a plurality of convex ribs are distributed on the circumferential wall of the water mixing channel at intervals. On one hand, the convex ribs can disturb the mixed water flowing into the water mixing channel, so that the hot water and the cold water are further fully mixed, and the water temperature is more uniform; on the other hand, the arrangement of the convex ribs reduces the water passing area of the water mixing channel, so that the mixed water is closer to the temperature sensing rod positioned at the center of the piston, and the temperature sensing precision of the temperature sensing rod is further improved. It is understood that the ribs may be baffles or bumps or other structures capable of disturbing the mixed water to promote the mixed water to be fully mixed, and have substantially the same technical effect. Furthermore, the structure can be arranged in the water mixing cavity for mixing the hot water and the cold water to disturb the mixed water, for example, convex ribs are arranged on the side wall of the water mixing cavity at intervals in the circumferential direction.
As an improvement, the convex ribs are longitudinally arranged and are obliquely arranged towards the same direction, so that a water flow guide flow channel is formed between the two convex ribs. The protruding muscle that the slope set up can guide the mixed water spiral that flows through in the water channel and encircle the temperature sensing stick, further promotes the intensive mixing of cold water and hot water and the abundant contact of mixed water and temperature sensing stick to the extension is mixed the time of water through mixing the water channel, makes the temperature that the temperature sensing stick sensed press close to more from mixing the temperature that the water outlet flows, improves the temperature sensing precision of temperature sensing stick.
As another design of the concrete structure of the convex rib, the convex rib is longitudinally arranged and spirally arranged towards the same direction, so that a water flow guide flow channel is formed between the two convex ribs.
In order to enable the piston to always have a movement trend towards the valve rod, a piston spring is sleeved on the temperature sensing rod, one end of the piston spring props against a protruding part arranged on the temperature sensing rod, and the other end of the piston spring props against the bottom wall of the water mixing cavity.
As an improvement, the temperature-sensing movable valve core further comprises a valve rod, a guide head and a valve rod spring, wherein the valve rod is arranged at the upper part of the heat-sensing element and can expand and contract according to the water temperature sensed by the temperature-sensing rod; the valve casing is internally provided with a guide cavity, the guide head and the valve rod spring are arranged in the guide cavity, the top end of the valve rod is matched with the lower part of the guide head in an abutting mode, one end of the valve rod spring abuts against the top wall of the guide cavity, and the other end of the valve rod spring abuts against the upper part of the guide head. The valve rod stretches according to the water outlet temperature sensed by the temperature sensing rod, so that the piston is reversely driven to move in the area between the hot water inlet and the cold water inlet, the sizes of the cold water port and the hot water port are adjusted, and the constant temperature adjusting function of the thermostatic valve core is realized.
In order to set the initial water temperature, the temperature-sensing movable valve core further comprises a temperature-adjusting rotary rod and a hexagonal connector in threaded transmission connection with the temperature-adjusting rotary rod, the temperature-adjusting rotary rod is in limit connection with the valve shell through a clamp spring, and the temperature-adjusting rotary rod is provided with a knob protruding out of the top end of the valve shell; the guide concave cavity is arranged at the lower part of the hexagonal joint. The initial position of the piston can be limited by rotating the knob of the temperature-adjusting rotary rod, so that the initial size of the cold water inlet and the hot water inlet is set, namely the initial water temperature is set. The elastic deformation range of the valve rod spring and the piston spring is limited, so that the temperature of mixed water adjusted by the thermosensitive element can be stabilized within a certain range, the phenomenon that the temperature of outlet water flowing out of a mixed water outlet is large in fluctuation is avoided, and the constant temperature adjusting effect is better.
In order to effectively isolate the hot water inlet and the cold water inlet, the periphery of the piston is provided with a first sealing ring which is connected with the inner wall of the valve shell in a sealing way, and the first sealing ring is arranged between the hot water inlet and the cold water inlet. The cold water inlet channel and the hot water inlet channel on the valve shell are mutually independent, and the sizes of the cold water inlet and the hot water inlet can be more accurately controlled through the movement of the piston in the area between the cold water inlet and the hot water inlet.
In order to facilitate the production and assembly of the thermostatic cartridge, the heat-sensitive element is removably associated with the piston. Specifically, the heat sensitive element is screwed in a through hole provided in the center of the piston.
Also, for ease of manufacture and assembly, the valve housing includes upper and lower valve housings that are threaded. Specifically, the hot water inlet and the cold water inlet are uniformly distributed on the lower valve casing along the circumferential direction. In order to effectively prevent dirt in the water, filter screens are covered outside the hot water inlet and the cold water inlet. In order to strengthen the leakproofness, the cover is equipped with the fourth sealing washer on the upper valve casing bottom, lower valve casing middle part cover is equipped with and is located hot water inlet with fifth sealing washer between the cold water inlet, lower valve casing lower part cover is established the sixth sealing washer.
Compared with the prior art, the utility model has the advantages of: the piston is provided with the water outlet direction control structure, so that water flowing out of the piston can rotate to enter the water mixing cavity, mixed water in the mixing cavity is driven to rotate towards the same direction, diffusion of cold water and hot water in the water mixing cavity is accelerated, the mixing is more sufficient, the water temperature is more uniform, the water temperature sensed by the temperature sensing rod is closer to the actual water temperature, the temperature sensing is more accurate, the water outlet temperature can be more accurately regulated and controlled, and a user can use more comfortable water; the convex ribs are arranged in the water passing channel, so that water flow can be effectively disturbed, the temperature of mixed water in the water mixing channel is further uniform, meanwhile, the water passing area of the water passing channel is reduced, the mixed water is closer to the temperature sensing rod, and the temperature sensing precision of the temperature sensing rod is further improved; the convex ribs are arranged obliquely or spirally, so that mixed water can be guided to spirally surround the temperature sensing rod in the water passing channel, the time of the mixed water passing through the water mixing channel is prolonged, cold water and hot water are mixed more fully, and the outlet water temperature is further stabilized; the main parts are detachable connections, so that the production and the assembly are more convenient, and the sealing performance is good.
Drawings
Fig. 1 is a three-dimensional structure diagram of embodiment 1 of the present invention;
FIG. 2 is an exploded perspective view of FIG. 1;
FIG. 3 is a longitudinal cross-sectional view of FIG. 1;
fig. 4 is a schematic structural view of a piston in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a lower valve casing in embodiment 1 of the present invention;
fig. 6 is a longitudinal sectional view of a lower valve casing in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a piston in embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 1 to 6, a first embodiment of a thermostatic cartridge for sensing temperature accurately is shown.
As shown in fig. 1-3, the thermostatic valve core for precise temperature sensing includes a valve housing and a temperature-sensing movable valve core. The valve housing comprises an upper valve housing 1 and a lower valve housing 2 which are threadedly connected. The temperature-sensing movable valve core comprises a piston 3, a heat-sensitive element 4, a piston spring 61, a valve rod spring 62, a temperature-adjusting rotary rod 71, a hexagonal joint 72, a guide head 10 and other main components.
As shown in fig. 1-2 and 6, a plurality of hot water inlets 21 and a plurality of cold water inlets 22 are circumferentially distributed on the lower valve housing 2. The cold water inlet 22 is disposed above the hot water inlet 21, and the hot water inlet 21 and the cold water inlet 22 are disposed in parallel. The piston 3 is disposed inside the lower valve housing 2 and is sealingly connected to the inner wall of the lower valve housing 2 by a first seal ring 51. The first sealing ring 51 is disposed between the hot water inlet 21 and the cold water inlet 22, thereby effectively isolating the hot water inlet 21 from the cold water inlet 22 and preventing the hot water and the cold water from being mixed before entering the water mixing chamber 23. The piston 3 is axially movable in the region between the hot water inlet 21 and the cold water inlet 22 for adjusting the size of the hot and cold water inlets. The interior of the lower valve casing 2 is also provided with a water mixing cavity 23 positioned below the piston 3, the hot water inlet 21 is communicated with the water mixing cavity 23, and the cold water inlet 22 is communicated with the water mixing cavity 23 through the piston 3. A water mixing channel 24 communicated with one end and the water mixing cavity 23 is further arranged inside the lower valve shell 2, and a water mixing outlet 25 is arranged at the other end of the water mixing channel 24.
As shown in fig. 1 to 3, the heat sensitive element 4 is provided in association with the piston 3, and the heat sensitive element 4 is detachably connected to the piston 3. Specifically, a threaded through hole is formed in the center of the piston 3, matching threads are formed on the thermosensitive element 4, and the thermosensitive element 4 is in threaded connection with the center of the piston 3. A temperature sensing rod 41 is provided at the lower part of the thermo-sensitive element 4. The temperature sensing rod 41 is disposed in the water mixing cavity 23 and extends into the water mixing channel 24 for sensing the temperature of the mixed water.
As shown in fig. 2 and 4, a water outlet direction control structure is provided in the piston 3, and the water outlet direction control structure rotates the water flowing out through the piston 3 in the same direction into the water mixing chamber 23. Specifically, the water outlet direction control structure is a plurality of longitudinal water passing channels 30 arranged on the piston 3, and the cross sections of the water passing channels 30 are trapezoidal. The water outlet direction control structure is formed by rotating an axial water passing channel 30 with a trapezoidal cross section towards the clockwise direction or the anticlockwise direction by taking the center of the piston 3 as a rotating center. One end of the cross section of the water channel 30 in the length direction is a near end 301, the other end is a far end 302, and the radial distance between the near end 301 and the center of the piston 3 is l1The distal end 302 is at a radial distance l from the center of the piston 32And l is1＜l2. The distal end 302 of the water passage 30 is adjacent the proximal end 301 of an adjacent water passage 30, and the proximal end 301 of the water passage 30 is adjacent the distal end 302 of an adjacent water passage 30. Cold water rotates in the same direction through the piston 3 and enters the water mixing cavity 23 to impact hot water, so that the mixed water in the water mixing cavity 23 rotates in the same direction, and cold water and hot water are acceleratedThe mixing of water makes hot water and cold water in muddy water chamber 23 intensive mixing in the short time, and the temperature is more even, and the temperature that is located the temperature sensing stick 41 in muddy water chamber 23 and senses reduces with actual temperature deviation, improves the temperature sensing precision of temperature sensing stick 41.
It is understood that in other embodiments, the cross section of the water passage 30 may be one of a diamond shape, a rectangle shape, an ellipse shape, a rack shape, and other irregular shapes, as long as one end of the cross section of the water passage 30 in the length direction is a proximal end in the radial direction relative to the center of the piston 3, and the other end of the water passage 30 is a distal end in the radial direction relative to the center of the piston 3 on the water passage 30.
As shown in fig. 2 to 6, a plurality of longitudinal ribs 240 are spaced apart from each other on the circumferential wall of the water mixing channel 24, and the longitudinal ribs 240 are inclined in the same direction, but the inclination angles of the longitudinal ribs may be slightly different, so that a water flow guiding channel is formed between the longitudinal ribs 240. Firstly, the convex rib 240 can disturb the mixed water flowing into the water mixing channel 24, so that the hot water and the cold water are further fully mixed, and the water temperature is more uniform; secondly, the arrangement of the convex rib 240 reduces the cross-sectional area of the through flow of the water mixing channel 24, so that the mixed water is closer to the temperature sensing rod 41 positioned at the center of the piston 3, and the temperature sensing precision of the temperature sensing rod is further improved; finally, the inclined rib 240 can guide the mixed water flowing through the water mixing channel 24 to spirally surround the temperature sensing rod 41, so as to further promote the sufficient mixing of the cold water and the hot water and the sufficient contact between the mixed water and the temperature sensing rod 41, and prolong the time of the mixed water passing through the water mixing channel 24, so that the temperature sensed by the temperature sensing rod 41 is closer to the temperature of the water flowing out from the water mixing outlet 25, and the temperature sensing precision of the temperature sensing rod 41 is improved.
It is understood that in other embodiments, the ribs 240 may be arranged spirally in the same direction. The ribs 240 may be baffles or bumps or other structures capable of disturbing the mixed water to promote the mixed water to be mixed thoroughly. In addition, the mixing chamber 23 for mixing hot water and cold water may be provided with the above-mentioned structure for disturbing the mixed water, such as ribs 240 provided at intervals in the circumferential direction on the side wall of the mixing chamber 23.
As shown in fig. 2-3, a protrusion 410 is further disposed on the upper portion of the temperature sensing rod 41, the piston spring 61 is sleeved on the temperature sensing rod 41, the upper end of the piston spring 61 abuts against the protrusion 410, and the lower end of the piston spring 61 abuts against the bottom wall of the water mixing cavity 23.
As shown in fig. 2 to 3, a valve stem 42 is provided on the upper portion of the heat sensitive element 4, and the valve stem 42 can expand and contract according to the water temperature sensed by the temperature sensing rod 41. The interior of the valve housing is also provided with a guide recess 720, and the guide head 9 and the valve rod spring 62 are both disposed in the guide recess 720. The lower part of the guide head 9 is provided with a groove, and the top end of the valve rod 42 is matched with the groove in an abutting mode. The upper end of the valve rod spring 62 abuts against the top wall of the guide recess 720, and the lower end of the valve rod spring 62 abuts against the upper part of the guide head 9. The top of the guide cavity 720 is provided with a pressure relief hole. The valve rod 42 extends and retracts according to the outlet water temperature sensed by the temperature sensing rod 41, so that the piston 3 is reversely driven to move in the area between the hot water inlet 21 and the cold water inlet 22, the sizes of the cold water port and the hot water port are adjusted, and the constant temperature adjusting function of the thermostatic valve core is realized.
As shown in fig. 2-3, the temperature adjusting rotary rod 71 is axially limited at the upper part of the valve casing by a clamp spring 10. The lower portion of the temperature control lever 71 is hermetically connected to the inner wall of the upper valve housing 1 by the second and third sealing rings 52 and 53, and the temperature control lever 71 has a knob 710 extended out of the top end of the upper valve housing 1. The hexagonal joint 72 is in transmission connection with the temperature adjusting rotary rod 71 through threads. The guide recess 720 is provided at a lower portion of the hexagonal socket 72. The initial water temperature is set by rotating the knob 710 on the upper portion of the temperature-adjusting lever 71 to set the initial water passing areas of the hot and cold water inlets. After the initial position of the piston 3 is set, because the elastic deformation ranges of the valve rod spring 62 and the piston spring 61 are limited, the water temperature change of the mixed water regulated by the thermosensitive element 4 can be stabilized within a certain range, the temperature fluctuation of the outlet water flowing out of the mixed water outlet 25 is avoided to be large, and the constant temperature regulation effect is better.
As shown in fig. 1, a first filter 81 is covered on the hot water inlet 21, a second filter 82 is covered on the cold water inlet 22, and the first filter 81 and the second filter 82 can effectively prevent dirt in the inlet water. In order to enhance the sealing performance, the lower portion of the upper valve casing 1 is provided with a fourth sealing ring 54, the middle portion of the lower valve casing 2 is provided with a fifth sealing ring 55 between the hot water inlet 21 and the cold water inlet 22, and the lower portion of the lower valve casing 2 is further provided with a sixth sealing ring 56.
The specific working principle of the thermostatic valve element in the embodiment is as follows:
when the temperature is set, the knob 710 at the upper part of the temperature-adjusting rotary rod 71 is rotated, the adjusting rotary rod 71 rotates, the hexagonal joint 72 axially moves downwards under the transmission action of the threads, the valve rod spring 62 arranged in the guide concave cavity 720 is extruded and pushes the guide head 9 downwards to cause the valve rod 42 to move downwards, and therefore the initial position of the piston 3, namely the initial size of the cold water inlet and the hot water inlet is set.
During constant temperature adjustment, when the temperature sensing rod 41 senses that the temperature of the mixed water outlet 25 is higher, the valve rod 42 extends, so that the valve rod spring 62 reversely pushes the valve rod 42 downwards, the piston 3 is driven to move towards the direction of the hot water inlet 21, and therefore the piston 3 can block the part of the hot water inlet 21, so that the through-flow opening of the hot water inlet 21 is reduced, and the flow rate of hot water is reduced; when the temperature sensing rod 41 senses that the temperature of the mixed water outlet 25 is lower, the valve rod 42 is shortened, the piston spring 61 pushes the temperature sensing rod 41 upwards, the piston 3 is driven to move towards the cold water inlet 22, and therefore the piston 3 can block the cold water inlet 22 to enable the through flow opening of the cold water inlet 22 to be smaller, the cold water flow rate to be smaller, the through flow opening of the hot water inlet 21 to be larger, and the constant temperature adjusting function of the constant temperature valve core is achieved.
Example 2
As shown in fig. 7, a second embodiment of the thermostatic cartridge that accurately senses temperature.
The present embodiment is different from the first embodiment in that: the water outlet direction control structure is a plurality of longitudinal water passing channels 30 arranged in the piston 3, and the water passing channels 30 are obliquely arranged towards the same direction.
It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. A thermostatic cartridge with accurate temperature sensing comprises
A valve casing provided with a hot water inlet (21), a cold water inlet (22) and a mixed water outlet (25), wherein a water mixing cavity (23) is arranged inside the valve casing, and the hot water inlet (21), the cold water inlet (22) and the mixed water outlet (25) are communicated with the water mixing cavity (23);
the temperature-sensing movable valve core is positioned in the valve shell and comprises a temperature-sensing element (4) and a piston (3) which is interlocked with the temperature-sensing element (4), the piston (3) can move in the valve shell and is used for adjusting the sizes of the hot water inlet (21) and the cold water inlet (22), and a temperature-sensing rod (41) positioned in the water mixing cavity (23) is arranged at the lower part of the temperature-sensing element (4);
the method is characterized in that:
a water outlet direction control structure is arranged in the piston (3), water flowing out of the piston (3) is enabled to rotate towards the same direction to enter the water mixing cavity (23) through the water outlet direction control structure, and one of the hot water inlet (21) and the cold water inlet (22) is communicated with the water mixing cavity (23) through the water outlet direction control structure.
2. The accurate temperature-sensing thermostatic valve cartridge according to claim 1, wherein: the water outlet direction control structure is a plurality of longitudinal water passing channels (30) arranged in the piston (3), one end of the cross section of each water passing channel (30) in the length direction is a radial proximal end (301) relative to the center of the piston (3), the other end of the cross section of each water passing channel (30) is a radial distal end (302) relative to the center of the piston (3), the proximal ends (301) of the water passing channels (30) are close to the distal ends (302) of the adjacent water passing channels (30), and the distal ends (302) of the water passing channels (30) are close to the proximal ends (301) of the adjacent water passing channels (30).
3. The accurate temperature-sensitive thermostatic valve cartridge of claim 2, wherein: the cross section of the water passing channel (30) is one of a prism, a rectangle, a trapezoid, an ellipse and a rack.
4. The accurate temperature-sensing thermostatic valve cartridge according to claim 1, wherein: the water outlet direction control structure is a plurality of longitudinal water passing channels (30) arranged in the piston (3), and the water passing channels (30) are obliquely arranged towards the same direction.
5. The precise temperature sensitive thermostatic cartridge of claim 1, 2, 3, or 4, wherein: a water mixing channel (24) with one end communicated with the water mixing cavity (23) is further arranged in the valve shell, the water mixing outlet (25) is arranged at the other end of the water mixing channel (24), and one end of the temperature sensing rod (41) extends into the water mixing channel (24); a plurality of convex ribs (240) are distributed on the peripheral wall of the water mixing channel (24) at intervals.
6. The accurate temperature-sensitive thermostatic cartridge of claim 5, wherein: the convex ribs (240) are longitudinally arranged, and the convex ribs (240) are obliquely arranged towards the same direction, so that a water flow guide flow channel is formed between the two convex ribs (240).
7. The accurate temperature-sensitive thermostatic cartridge of claim 5, wherein: the convex ribs (240) are longitudinally arranged, and the convex ribs (240) are spirally arranged towards the same direction, so that a water flow guide flow channel is formed between the two convex ribs (240).
8. The accurate temperature-sensing thermostatic valve cartridge according to claim 1, wherein: the temperature sensing rod (41) is sleeved with a piston spring (61), one end of the piston spring (61) abuts against a boss (410) arranged on the temperature sensing rod (41), and the other end of the piston spring (61) abuts against the bottom wall of the water mixing cavity (23).
9. The accurate temperature-sensing thermostatic valve cartridge according to claim 1, wherein: the temperature-sensing movable valve core further comprises a valve rod (42), a guide head (9) and a valve rod spring (62), wherein the valve rod (42) is arranged at the upper part of the heat-sensing element (4) and can expand and contract according to the water temperature sensed by the temperature-sensing rod (41); the inside direction cavity (720) that still is equipped with of valve casing, direction head (9) with valve rod spring (62) set up in direction cavity (720), valve rod (42) top with the cooperation of leading first (9) lower part counterbalance, just valve rod spring (62) one end is supported direction cavity (720) roof, the other end of valve rod spring (62) supports lead first (9) upper portion.
10. The accurate temperature sensitive thermostatic cartridge of claim 9, wherein: the temperature-sensing movable valve core further comprises a temperature-regulating rotary rod (71) and a hexagonal connector (72) in threaded transmission connection with the temperature-regulating rotary rod (71), the temperature-regulating rotary rod (71) is in limit connection with the valve shell through a snap spring (10), and the temperature-regulating rotary rod (71) is provided with a knob (710) protruding out of the top end of the valve shell; the guide concave cavity (720) is arranged at the lower part of the hexagonal joint (72).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920724433.XU CN210218782U (en) | 2019-05-20 | 2019-05-20 | Thermostatic valve core of accurate temperature sensing |
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| CN201920724433.XU CN210218782U (en) | 2019-05-20 | 2019-05-20 | Thermostatic valve core of accurate temperature sensing |
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| CN210218782U true CN210218782U (en) | 2020-03-31 |
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| CN201920724433.XU Active CN210218782U (en) | 2019-05-20 | 2019-05-20 | Thermostatic valve core of accurate temperature sensing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030404A (en) * | 2019-05-20 | 2019-07-19 | 宁波万海阀门科技有限公司 | The thermostatic valve core of accurate temperature-sensitive |
| WO2023087068A1 (en) * | 2021-11-19 | 2023-05-25 | Reliance Worldwide Corporation (Aust.) Pty. Ltd. | A valve |
-
2019
- 2019-05-20 CN CN201920724433.XU patent/CN210218782U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030404A (en) * | 2019-05-20 | 2019-07-19 | 宁波万海阀门科技有限公司 | The thermostatic valve core of accurate temperature-sensitive |
| CN110030404B (en) * | 2019-05-20 | 2024-04-23 | 宁波万海阀门科技有限公司 | Accurate temperature-sensing constant temperature valve core |
| WO2023087068A1 (en) * | 2021-11-19 | 2023-05-25 | Reliance Worldwide Corporation (Aust.) Pty. Ltd. | A valve |
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