Temperature regulating valve structure for stepping water boiler

Abstract

The utility model relates to the technical field of temperature regulating valves, in particular to a temperature regulating valve structure for a stepping water boiler. The variable-temperature water valve comprises a hollow valve element and a telescopic piston arranged in the valve element, an inlet I connected with normal-temperature water and an inlet II connected with hot boiled water are formed in the upper side of the valve element, and an outlet of mixed variable-temperature water is formed in the lower side of the valve element. One end of the telescopic piston is connected with a rotating shaft of the motor, and the other end is movably arranged in the valve core; the telescopic piston comprises a piston rod and a piston head, a groove is formed in the middle of the piston rod, and the piston head is provided with an expanded conical surface. The structure of the telescopic piston is improved, the inlet amount of normal-temperature water is controlled through the dislocation area of the groove in the middle of the piston rod and the inlet I, the expanded conical surface of the piston head is matched with the conical channel to control inflow of hot boiled water, and finally accurate variable-temperature water temperature adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature regulating valves, in particular to a temperature regulating valve structure for a stepping water boiler. Background Art

[0002] When a step-by-step water heater is in operation, the need to quickly and accurately provide hot water at a preset temperature is crucial. Traditional models are limited by simple mechanical structures in temperature regulation and cannot achieve fine control. Under long-term use, mechanical wear will affect the service life and accuracy. Therefore, it is crucial to design a new step-by-step water heater thermostat structure. Prior art such as the thermostat disclosed in CN210783993U uses axial movement of the valve core to control the hot water output and can adjust the water temperature to a certain extent, but it cannot meet the demand for precise temperature changes, and mechanical wear under long-term operation may lead to a decrease in accuracy. Therefore, further optimization is needed to achieve precise and stable temperature regulation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a temperature regulating valve structure for a step-by-step water boiler.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A thermostatic valve structure for a step-by-step water boiler comprises a hollow valve core and a telescopic piston arranged in the valve core, wherein:

[0006] The valve core has an inlet I connected to normal temperature water and an inlet II connected to hot water on its upper side; an outlet for mixed variable temperature water is provided on its lower side;

[0007] A telescopic piston, one end of which is connected to the rotating shaft of the motor, and the other end of which is movably arranged in the valve core; the telescopic piston includes a piston rod and a piston head, a groove is arranged in the middle of the piston rod, the groove is located at the channel of the inlet I, and the amount of normal temperature water entering is controlled by the misaligned area between the groove and the inlet I; the piston head is provided with an enlarged conical surface, and the conical surface cooperates with the conical channel at the inlet II to block the hot water at the inlet II.

[0008] This technical solution improves the structure of the telescopic piston, and controls the amount of normal temperature water entering through the groove in the middle of the piston rod and the offset area of ​​the inlet Ⅰ, while the expanded conical surface of the piston head cooperates with the conical channel to control the inflow of hot water, and finally realizes accurate variable temperature water temperature regulation. Specifically, the upper side of the valve core is connected to normal temperature water and hot water, respectively, and two water flows of different temperatures enter the valve core for mixing. Based on the mixing process following the heat exchange principle in thermodynamics, the mixing ratio is controlled by the screwing distance of the telescopic piston. When the water is mixed, it will reach an intermediate temperature. The mixed water obtained is controllable within the range of variation, which is called variable temperature water; the outlet on the lower side of the valve core is used to output the mixed variable temperature water for supplying the water dispenser. Based on the principle that flow rate is proportional to channel area in fluid mechanics, the amount of normal temperature water entering is adjusted by controlling the offset area between the groove and inlet I; the enlarged conical surface set on the piston head cooperates with the conical channel at inlet II, and the flow of hot water is controlled by the extension and contraction of the telescopic piston; by controlling the extension and contraction of the telescopic piston, the amount of normal temperature water and hot water entering is accurately controlled, thereby adjusting the temperature of the output water.

[0009] In addition, the thermostatic valve structure for a step-by-step water boiler according to the utility model also has the following additional technical features:

[0010] According to an embodiment of the utility model, the hollow cavity in the valve core is arranged in a T-shape, including a channel of inlet I, a channel of inlet II, and a channel of outlet;

[0011] The channel of inlet I is arranged vertically downward, and the connection area of ​​the channel is changed by staggered arrangement with the grooves to adjust the water inflow of normal temperature water;

[0012] The channel of inlet II is an L-shaped structure, including a section of channel running vertically downward, and bends 90 degrees along the channel to form a tapered channel. When the piston head moves to the farthest end, the tapered channel completely contacts the tapered surface of the piston head to block the hot water.

[0013] This technical solution achieves precise control of the flow of normal temperature water and hot water through the structure of the T-shaped hollow cavity, the staggered setting of the inlet I channel, and the L-shaped structure and tapered channel setting of the inlet II channel, thereby achieving precise adjustment of the output water temperature. Specifically, by controlling the degree of misalignment between the groove and the channel, the amount of normal temperature water entering is precisely adjusted. When the groove is completely aligned with the channel, the flow of normal temperature water is the largest; when the groove and the channel are greatly misaligned, the flow of normal temperature water is the smallest; when hot water enters the tapered channel, the flow rate and flow direction change, which is conducive to mixing with normal temperature water; through the close cooperation between the cone surface and the tapered channel, a leak-free sealing effect is achieved.

[0014] According to an embodiment of the utility model, when the telescopic piston moves to any position in the valve core, the groove is at least partially connected to the channel of the inlet I.

[0015] This technical solution changes the position of the piston, and the connection area between the groove and the inlet I channel will change, thereby changing the flow of normal temperature water, and a part of the connection is reserved to ensure that normal temperature water can always flow into the valve core and mix with hot water. Specifically, when the piston moves toward the inlet I channel, the connection area between the groove and the channel increases, and the flow of normal temperature water increases; when the piston moves away from the inlet I channel, the connection area decreases, and the flow of normal temperature water decreases. By moving the telescopic piston in the valve core, the connection area between the groove and the inlet I channel is changed, thereby achieving precise control of the flow of normal temperature water, and then adjusting the temperature of the output water.

[0016] According to one embodiment of the utility model, a sensor I for detecting the temperature of normal temperature water is arranged in the channel of the inlet I, a sensor II for detecting the temperature of hot water is arranged in the channel of the inlet II, and a sensor III for detecting variable temperature water is arranged in the channel of the outlet.

[0017] In this technical solution, the above three sensors are integrated to form a closed-loop temperature control system to adjust the mixing ratio of room temperature water and hot water to ensure that the temperature of the output water meets the requirements. This not only improves the accuracy of temperature regulation, but also increases the flexibility and adaptability of the system, and can cope with scenarios with different temperature requirements.

[0018] According to one embodiment of the utility model, the temperature regulating valve structure also includes a controller, which adjusts the power of the motor according to the temperatures detected by sensors I, II, and III, controls the movement distance of the telescopic piston, and indirectly controls the mixing ratio of normal temperature water and hot water, thereby adjusting the water temperature of the variable temperature water.

[0019] In this technical solution, the controller can continuously monitor the water temperature and adjust the mixing ratio in real time to ensure that the temperature of the output water always remains within the preset range, which not only improves the accuracy and stability of temperature control, but also makes the entire system more flexible and reliable.

[0020] According to an embodiment of the utility model, the valve core and the rotating shaft of the motor are both fixed on the mounting seat.

[0021] In this technical solution, the mounting seat provides a stable supporting platform for fixing the valve core and the rotating shaft of the motor, so as to ensure that the valve core and the rotating shaft will not be relatively displaced or shaken during operation, thereby ensuring the stability and reliability of the system.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model improves the structure of the telescopic piston, controls the amount of normal temperature water entering through the groove in the middle of the piston rod and the offset area of ​​the inlet I, and the expanded conical surface of the piston head cooperates with the conical channel to control the inflow of hot water, ultimately achieving accurate variable temperature water temperature regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is one of the state schematic diagrams of the utility model.

[0025] Figure 2 This is the second state schematic diagram of the utility model.

[0026] In the figure: 1. motor; 2. rotating shaft; 3. mounting seat; 4. telescopic piston; 41. groove; 42. piston head; 5. valve core; 51. inlet Ⅰ; 52. inlet Ⅱ; 53. outlet; 54. sensor Ⅰ; 55. sensor Ⅱ; 56. sensor Ⅲ. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a thermostatic valve structure for a step-by-step water boiler, comprising a hollow valve core 5 and a telescopic piston 4 disposed in the valve core 5, wherein:

[0030] The valve core 5 has an inlet Ⅰ51 connected to normal temperature water and an inlet Ⅱ52 connected to hot water on its upper side; and an outlet 53 for mixed temperature-changed water is provided on its lower side;

[0031] The telescopic piston 4 has one end connected to the rotating shaft 2 of the motor 1, and the other end movably arranged in the valve core 5; the telescopic piston 4 includes a piston rod and a piston head 42, a groove 41 is arranged in the middle of the piston rod, the groove 41 is located at the channel of the inlet Ⅰ51, and the amount of normal temperature water entering is controlled by the misaligned area between the groove 41 and the inlet Ⅰ51; the piston head 42 is provided with an enlarged conical surface, and the conical surface cooperates with the conical channel at the inlet Ⅱ52 to block the hot water at the inlet Ⅱ52.

[0032] like Figure 1 and Figure 2As shown, the technical solution improves the structure of the telescopic piston 4, and controls the amount of normal temperature water entering through the misaligned area of ​​the groove 41 in the middle of the piston rod and the inlet Ⅰ51, while the expanded conical surface of the piston head 42 cooperates with the conical channel to control the inflow of hot water, and finally realizes accurate variable temperature water temperature regulation. Specifically, the upper side of the valve core 5 is connected to normal temperature water and hot water, respectively, and two water flows of different temperatures enter the valve core 5 for mixing. Based on the heat exchange principle in thermodynamics in the mixing process, the mixing ratio is controlled by the screwing distance of the telescopic piston 4. When the water is mixed, it will reach an intermediate temperature. The mixed water obtained is controllable within the range of variation, which is called variable temperature water; the outlet 53 on the lower side of the valve core 5 is used to output the mixed variable temperature water for supplying the water dispenser. Based on the principle that the flow rate is proportional to the channel area in fluid mechanics, the amount of normal temperature water entering is adjusted by controlling the offset area between the groove 41 and the inlet Ⅰ51; the enlarged conical surface set on the piston head 42 cooperates with the conical channel at the inlet Ⅱ52, and the flow rate of hot water is controlled by the extension and contraction of the telescopic piston 4; by controlling the extension and contraction of the telescopic piston 4, the amount of normal temperature water and hot water entering is accurately controlled, thereby adjusting the temperature of the output water.

[0033] It should be noted that the thermostatic valve structure adopts electric control and adjustment, and combines PWM technology to achieve accurate control of fluid temperature. The PWM technology adopted by the utility model belongs to the existing technology, and the utility model only involves the improvement of hardware.

[0034] In addition, the thermostatic valve structure for a step-by-step water boiler according to the utility model also has the following additional technical features:

[0035] According to an embodiment of the utility model, the hollow cavity in the valve core 5 is arranged in a T-shape, including a channel of the inlet I 51, a channel of the inlet II 52, and a channel of the outlet 53;

[0036] The channel of the inlet Ⅰ51 is arranged vertically downward, and the connection area of ​​the channel is changed by staggered arrangement with the groove 41 to adjust the water inflow of normal temperature water;

[0037] The channel of inlet II 52 is an L-shaped structure, including a section of the channel extending vertically downward and bending 90 degrees along the channel to form a tapered channel. When the piston head 42 moves to the farthest end, the tapered channel and the tapered surface of the piston head 42 completely contact and block the hot water.

[0038] This technical solution achieves precise control of the flow of normal temperature water and hot water through the structure of the T-shaped hollow cavity, the staggered setting of the inlet Ⅰ51 channel, and the L-shaped structure and tapered channel setting of the inlet Ⅱ52 channel, thereby achieving precise adjustment of the output water temperature. Specifically, by controlling the misalignment between the groove 41 and the channel, the amount of normal temperature water entering is precisely adjusted. When the groove 41 is completely aligned with the channel, the flow of normal temperature water is the largest; when the groove 41 is greatly misaligned with the channel, the flow of normal temperature water is the smallest; when hot water enters the tapered channel, the flow rate and flow direction change, which is conducive to mixing with normal temperature water; through the close cooperation between the conical surface and the tapered channel, a leak-free sealing effect is achieved.

[0039] According to an embodiment of the utility model, when the telescopic piston 4 moves to any position in the valve core 5 , the groove 41 is at least partially connected to the channel of the inlet Ⅰ51 .

[0040] By changing the position of the piston, the technical solution changes the connection area between the groove 41 and the inlet Ⅰ51 channel, thereby changing the flow rate of normal temperature water, and a part of the connection is reserved to ensure that normal temperature water can always flow into the valve core 5 and mix with hot water. Specifically, when the piston moves toward the inlet Ⅰ51 channel, the connection area between the groove 41 and the channel increases, and the flow rate of normal temperature water increases; when the piston moves away from the inlet Ⅰ51 channel, the connection area decreases, and the flow rate of normal temperature water decreases. By moving the telescopic piston 4 in the valve core 5, the connection area between the groove 41 and the inlet Ⅰ51 channel is changed, thereby achieving precise control of the flow rate of normal temperature water, and then adjusting the temperature of the output water.

[0041] According to one embodiment of the utility model, a sensor I54 for detecting the temperature of normal temperature water is arranged in the channel of the inlet I51, a sensor II55 for detecting the temperature of hot water is arranged in the channel of the inlet II52, and a sensor III56 for detecting variable temperature water is arranged in the channel of the outlet 53.

[0042] In this technical solution, the above three sensors are integrated to form a closed-loop temperature control system to adjust the mixing ratio of room temperature water and hot water to ensure that the temperature of the output water meets the requirements. This not only improves the accuracy of temperature regulation, but also increases the flexibility and adaptability of the system, and can cope with scenarios with different temperature requirements.

[0043] According to one embodiment of the utility model, the temperature regulating valve structure also includes a controller, which adjusts the power of the motor 1 according to the temperature detected by the sensor I54, the sensor II55, and the sensor III56, controls the movement distance of the telescopic piston 4, and indirectly controls the mixing ratio of normal temperature water and hot water, thereby adjusting the water temperature of the variable temperature water.

[0044] In this technical solution, the controller can continuously monitor the water temperature and adjust the mixing ratio in real time to ensure that the temperature of the output water always remains within the preset range, which not only improves the accuracy and stability of temperature control, but also makes the entire system more flexible and reliable.

[0045] According to an embodiment of the present invention, the valve core 5 and the rotating shaft 2 of the motor 1 are both fixed on the mounting seat 3 .

[0046] In this technical solution, the mounting seat 3 provides a stable supporting platform for fixing the valve core 5 and the rotating shaft 2 of the motor 1, and is used to ensure that the valve core 5 and the rotating shaft 2 will not undergo relative displacement or shaking during operation, thereby ensuring the stability and reliability of the system.

[0047] The usage process of the above embodiment is as follows:

[0048] like Figure 1 and Figure 2 As shown, normal temperature water and hot water enter the valve core 5 through the inlet Ⅰ51 and the inlet Ⅱ52 on the upper side of the valve core 5 respectively. The hollow cavity in the valve core 5 is T-shaped, the channel of the inlet Ⅰ51 is vertically downward, and the channel of the inlet Ⅱ52 is an L-shaped structure, including a section of the channel vertically downward and bent 90° to form a tapered channel; the controller calculates the mixing ratio that needs to be adjusted by detecting the temperature data of normal temperature water, hot water and variable temperature water obtained by the sensor Ⅰ54, the sensor Ⅱ55 and the sensor Ⅲ56 respectively; the controller adjusts the power of the motor 1 according to the calculation result, drives the rotating shaft 2 of the motor 1 to rotate, thereby driving the telescopic piston 4 to move in the valve core 5; the middle part of the piston rod of the telescopic piston 4 is provided with a groove 41, and the groove 41 is located at the channel of the inlet Ⅰ51. As the telescopic piston 4 moves, the misalignment area between the groove 41 and the channel of the inlet Ⅰ51 will change, thereby changing the amount of room temperature water entering; the enlarged conical surface of the piston head 42 cooperates with the conical channel at the inlet Ⅱ52, and the flow rate of hot water is controlled by the movement of the telescopic piston 4; the room temperature water and the hot water are mixed inside the valve core 5, and based on the principle of heat exchange, the mixed water will reach an intermediate temperature, that is, variable temperature water; the mixing ratio is accurately controlled by the screw-in distance of the telescopic piston 4 to ensure that the temperature of the output water meets the preset requirements; the mixed variable temperature water is output through the outlet 53 on the lower side of the valve core 5 and supplied to the water dispenser; the entire temperature adjustment process is monitored and adjusted in real time by the controller to ensure the temperature stability and accuracy of the output water; through the temperature regulating valve structure of this embodiment, the flow rate of room temperature water and hot water is accurately controlled, and then the output water temperature is accurately adjusted, thereby improving the performance and user experience of the stepping water dispenser.

[0049] It should be noted that: the utility model only improves the hardware structure, and does not improve the software algorithm. The software algorithms involved are all conventional technical means. Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited to this. Without departing from the spirit and essence of the utility model, ordinary technicians in this field make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A thermostatic valve structure for a stepping water boiler, characterized in that: It comprises a hollow valve core (5) and a telescopic piston (4) arranged in the valve core (5), wherein: The valve core (5) has an inlet I (51) connected to normal temperature water and an inlet II (52) connected to hot water on its upper side; and an outlet (53) for mixed variable temperature water on its lower side; A telescopic piston (4) is provided, one end of which is connected to the rotating shaft (2) of the motor (1), and the other end of which is movably arranged in the valve core (5); the telescopic piston (4) comprises a piston rod and a piston head (42); a groove (41) is provided in the middle of the piston rod, the groove (41) is located at the channel of the inlet I (51), and the amount of normal temperature water entering is controlled by the misaligned area between the groove (41) and the inlet I (51); the piston head (42) is provided with an enlarged conical surface, and the conical surface cooperates with the conical channel at the inlet II (52) to block the hot water at the inlet II (52).

2. A thermostatic valve structure for a stepping water boiler as claimed in claim 1, characterized in that: The hollow cavity in the valve core (5) is arranged in a T-shape, including a channel of inlet I (51), a channel of inlet II (52), and a channel of outlet (53); The channel of the inlet Ⅰ (51) is arranged vertically downward, and the connection area of ​​the channel is changed by staggered arrangement with the groove (41), thereby adjusting the water inflow of normal temperature water; The channel of inlet II (52) is an L-shaped structure, including a section of the channel extending vertically downward and bending 90 degrees along the channel to form a tapered channel. When the piston head (42) moves to the farthest end, the tapered channel and the tapered surface of the piston head (42) completely contact and block the hot water.

3. A thermostatic valve structure for a stepping water boiler as claimed in claim 1, characterized in that: When the telescopic piston (4) moves to any position in the valve core (5), the groove (41) is at least partially connected to the channel of the inlet I (51).

4. A thermostatic valve structure for a stepping water boiler as claimed in claim 1, characterized in that: A sensor I (54) for detecting the temperature of normal temperature water is arranged in the channel of the inlet I (51), a sensor II (55) for detecting the temperature of hot water is arranged in the channel of the inlet II (52), and a sensor III (56) for detecting variable temperature water is arranged in the channel of the outlet (53).

5. A thermostatic valve structure for a step-by-step water boiler as claimed in claim 4, characterized in that: The temperature regulating valve structure also includes a controller, which adjusts the power of the motor (1) according to the temperatures detected by the sensor I (54), the sensor II (55), and the sensor III (56), controls the moving distance of the telescopic piston (4), and indirectly controls the mixing ratio of the normal temperature water and the hot water, thereby adjusting the water temperature of the variable temperature water.

6. A thermostatic valve structure for a stepping water boiler as claimed in claim 1, characterized in that: The valve core (5) and the rotating shaft (2) of the motor (1) are both fixed on the mounting seat (3).

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