CN211624292U

CN211624292U - Thermostatic valve

Info

Publication number: CN211624292U
Application number: CN201922380082.8U
Authority: CN
Inventors: 肖卫军; 沈军才
Original assignee: Foshan Sundream Electronics Co ltd
Current assignee: Foshan Sundream Electronics Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-02
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a thermostatic valve, including valve body and hybrid chamber, cold water chamber and the hot water chamber of setting on the valve body, cold water chamber and hot water chamber set up in the homonymy to baffle and hybrid chamber through middle setting are separated, be equipped with the first through-hole of intercommunication hybrid chamber and cold water chamber on the baffle, and intercommunication hybrid chamber and hot water chamber second through-hole, thermostatic valve still includes the rotatable pivot of fixing on the valve body, the rotation axis passes cold water chamber and hot water chamber, and one end is connected with driving motor, and the other end is fixed on the mounting bracket that the valve body set up, and the rotation axis is equipped with first case and second case in the position that corresponds first through-hole and establish with the second through-hole, is used for controlling the size of first through-hole and second through-hole and cold water chamber and hot water chamber intercommunication respectively. The utility model provides a thermostatic valve can the proportion of linear control hot and cold water, reaches accurate regulation leaving water temperature, obtains the water of more constant temperature.

Description

Thermostatic valve

Technical Field

The utility model relates to the technical field of valves, in particular to thermostatic valve.

Background

The existing cold and hot water mixing is usually completed through a mixing valve, one end of the mixing valve is usually connected with hot water, the other end of the mixing valve is connected with cold water, the water temperature is adjusted by adjusting the proportion of the cold and hot water, and the mixing valve is generally used in places needing warm water in bathrooms or washrooms or kitchens. The existing mixing valve adjusts the water temperature manually, not only is not accurate, and needs manual real-time adjustment when the water temperature of a hot water source changes, which is complicated, in addition, the existing rotating shaft simultaneously completes the adjustment of the water quantity and the water temperature, therefore, the flowing size and the proportion of hot water and cold water are controlled by adopting a blocking mode, a valve core needs to bear the impulsive force of water pressure, the torque of the rotating shaft is larger, in the adjusting process, the proportion of the hot water and the cold water of the mixing valve is difficult to be linearly controlled, the temperature change is not linear, the water temperature adjustment is difficult to be controlled, and therefore, the prior art is still required to be improved and improved.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a thermostatic valve, which aims to solve the problems of the prior art that the mixing valve is not accurate enough in adjusting the water temperature and is complex to operate.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a thermostatic valve, wherein, includes the valve body and sets up mixing chamber, cold water chamber and the hot water chamber on the valve body, cold water chamber and hot water chamber set up in the homonymy to separate with the mixing chamber through the baffle that the centre set up, be equipped with the first through-hole of intercommunication mixing chamber and cold water chamber on the baffle to and intercommunication mixing chamber and hot water chamber second through-hole, thermostatic valve still includes the rotation axis, the rotation axis passes cold water chamber and hot water chamber, and one end is connected driving motor through the connecting piece that sets up, and the other end is fixed on the mounting bracket that the valve body set up, and the rotation axis is corresponding first through-hole to establish and the position of second through-hole is equipped with first case and second case respectively, is used for controlling the size of first through-hole and second through-hole and cold water chamber.

In the thermostatic valve, the first valve core and the second valve core are provided with gradually-changed arc-shaped convex blocks, one ends of arc edges of the arc-shaped convex blocks are tangent to a circle of the valve core, the other ends of the arc edges of the arc-shaped convex blocks are protruded to form arc-shaped convex blocks with gradually-increased tangent ends, and the first through holes and the second through holes are respectively slot holes matched with the first valve core and the second valve core.

In the thermostatic valve, the mixing chamber is provided with a baffle plate, the height of the baffle plate is smaller than the inner hollow height of the mixing chamber, and the baffle plate enables the mixing chamber to form a U-shaped channel.

In the thermostatic valve, the thermostatic valve still is equipped with the connecting piece, and the motor is connected to the one end of connecting piece, and the rotation axis is connected to the other end, the connecting piece still is equipped with case skew and detects the opto-coupler.

In the thermostatic valve, the thermostatic valve is further provided with a cold water joint, a hot water joint and a warm water outlet joint, the cold water joint communicates the cold water cavity with the cold water source through a pipeline, the hot water joint communicates the hot water cavity with the hot water source through a pipeline, and the warm water outlet joint communicates the mixing cavity with the switch valve through a pipeline.

In the thermostatic valve, the joints of the cold water joint, the hot water joint and the warm water outlet joint and the valve body are all provided with sealing gaskets.

In the thermostatic valve, the cold water joint and the hot water joint are both provided with one-way valves.

In the thermostatic valve, a temperature sensor is also arranged at the position of the mixing cavity, which is close to the warm water outlet joint.

In the thermostatic valve, the thermostatic valve still is equipped with the control unit, the control unit includes control panel and control chip, control panel is equipped with temperature setting button and temperature display interface, the control unit detects opto-coupler electric connection with driving motor, temperature sensor and case skew respectively.

Has the advantages that:

the utility model provides a thermostatic valve has the rotation axis of first case and second case through the setting, and first case and second case have linear gradually-opened pitch arc lug structure to the temperature of ability linear control thermostatic valve reaches accurate regulation leaving water temperature, obtains the effect of the water of more constant temperature. Compared with the prior art, the method has the following beneficial effects:

(1) first case and second case are the pitch arc lug structure of gradually opening to can be more accurate adjust the flow area of first through-hole and second through-hole, and then can be more accurate control hot and cold water's proportion, obtain more accurate temperature.

(2) The rotating shaft is positioned at the same side with the cold water cavity and the hot water cavity, and the pressure of resisting water pressure born by the rotating shaft during adjustment is smaller, so that the torque of the rotating shaft is smaller, and the service life of the rotating shaft is longer.

(3) The valve core deviation detection optocoupler can detect the deviation positions of the first valve core and the second valve core in real time, so that the cold-hot water ratio is obtained, and the controller can control the motor to adjust the rotation of the rotating shaft conveniently.

Drawings

Fig. 1 is a perspective view of a thermostatic valve provided by the present invention;

FIG. 2 is a schematic structural view in cross section of a thermostatic valve;

FIG. 3 is a schematic view showing the structure of the parts linked with the rotating shaft;

FIG. 4 is a schematic view of the AA plane of FIG. 2 (the arc-shaped bump blocks the second through hole);

fig. 5 is a schematic structural view of the AA plane in fig. 2 (a state where the arc-shaped bump is away from the second through hole).

Detailed Description

The utility model provides a thermostatic valve, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Please refer to fig. 1 and 2, the utility model provides a thermostatic valve, including valve body 1 and mixing chamber 2, cold water chamber 3 and hot water chamber 4 of setting on valve body 1, mixing chamber 2, cold water chamber 3 and hot water chamber 4 are the empty cavity in the column, and cold water chamber 3 and hot water chamber 4 set up in the homonymy to baffle 5 and mixing chamber 2 through the valve body middle part setting are separated, be equipped with first through-hole 6 and second through-hole 7 on the baffle 5, first through-hole 6 intercommunication mixing chamber 2 and cold water chamber 3, second through-hole 7 intercommunication mixing chamber 2 and hot water chamber 4. During operation, cold water in the cold water cavity 3 enters the mixing cavity 2 through the first through hole 6, hot water in the hot water cavity 4 enters the mixing cavity 2 through the second through hole 7, and the cold water and the hot water are fully mixed in the mixing cavity 2 to obtain warm water at a certain temperature.

As shown in fig. 2, 3, 4, and 5, the thermostatic valve with the above structure further includes a rotating shaft 8, one end of the rotating shaft 8 is connected to a driving motor 10 through a connecting member 9, and the other end of the rotating shaft passes through the cold water chamber 3 and the hot water chamber 4 and is rotatably fixed on the valve body 1, the rotating shaft 8 is provided with a first valve core 11 at a position corresponding to the first through hole 6, and a second valve core 12 at a position corresponding to the second through hole 7, the side shapes of the first valve core 11 and the second valve core 12 are matched with the first through hole 6 and the second through hole 7, and when the rotating shaft 8 is rotated, the first valve core 11 and the second valve core 12 also rotate along with each other, and simultaneously the size of the first through hole 6 communicated with the cold water chamber 3 and the size of the second through hole 7 communicated with the hot water chamber 4 are changed, so as to change the ratio of the intake amount of the hot water. When the motor 10 drives the rotating shaft 8 to rotate, the first valve core 11 and the second valve core 12 synchronously rotate, and the hot water inflow and the cold water inflow in the mixing cavity 2 are changed in inverse proportion, namely, when the side surface of the first valve core 11 is completely overlapped with the first through hole 6, the side surface of the second valve core 12 is just not overlapped with the second through hole 7 completely, as shown in fig. 5, at this time, the cold water cavity 3 is completely isolated from the mixing cavity 2, and the hot water cavity 4 is communicated with the mixing cavity 2 to the maximum extent, so that the water temperature in the mixing cavity 2 reaches the maximum value; when the side surface of the second valve core 12 completely coincides with the second through hole 7, as shown in fig. 4, the second through hole is completely closed, the side surface of the first valve core 11 does not overlap with the first through hole 6, and the first through hole is completely opened, at this time, the hot water cavity 4 is closed, the cold water cavity 3 is communicated with the mixing cavity 2 to the maximum extent, and the water temperature in the mixing cavity 2 reaches the lowest; correspondingly, when the first valve core 11 is rotated to shield half of the first through hole 6, the second valve core 12 just shields half of the second through hole 7, and the water flowing into the mixing chamber 2 is half of hot water and half of cold water; therefore, by rotating the rotary shaft 8 and simultaneously adjusting the overlapping areas and the ratio of the first valve spool 11 and the second valve spool 12 with the first through hole 6 and the second through hole 7, hot water and cold water can be obtained in any ratio.

As shown in fig. 3, 4 and 5, specifically, the first valve core 11 and the second valve core 12 are provided with gradually changing arc-shaped protrusions 13, one end of the arc edge of each arc-shaped protrusion is tangent to the circle of the valve core, and the other end of each arc edge protrudes to form an arc-shaped protrusion with the size gradually increased from the tangent end, as shown in fig. 3 and 4. Correspondingly, the first through hole 6 and the second through hole 7 are groove holes 14 matched with the first valve core 11 and the second valve core 12 respectively. The structure of the slot hole 14 is matched with that of the arc-shaped projection 13, and when the first valve core 11 or the second valve core 12 rotates to a certain angle, the arc-shaped projection 13 just compacts the opening of the slot hole 14. The gradually changing arc-shaped projection 13 structures arranged on the first valve core 11 and the second valve core 12 can form linear gradually-opened change when the flow areas of the first through hole 6 and the second through hole 7 are adjusted, so that the proportion of cold water and hot water is changed linearly, and the water temperature of the mixing chamber 2 can be obtained by adjusting the proportion more easily. Further, when the first valve core 11 and the second valve core 12 gradually change into arc-shaped protrusions, and rotate to a certain angle, the arc-shaped protrusions abut against the notch edges of the first through hole 6 and the second through hole 7, as shown in fig. 5, so that the rotating shaft cannot rotate, and the rotating range of the rotating shaft is limited.

Specifically, as shown in fig. 2, in the thermostatic valve with the above structure, a baffle 15 is further arranged in the mixing chamber 2, and the height of the baffle 15 is smaller than the inner hollow height of the mixing chamber 2, so that the mixing chamber forms a U-shaped water flow channel. The baffle 15 arranged in the mixing cavity 2 can prolong the mixing path of the cold water and the hot water, thereby leading the cold water and the hot water to be mixed more uniformly and fully.

Specifically, as shown in fig. 1 and 2, in the thermostatic valve with the above structure, the thermostatic valve is further provided with a cold water joint 16, a hot water joint 17 and a warm water outlet 18 joint, free ends of the cold water joint 16, the hot water joint 17 and the warm water outlet 18 are all in a threaded structure and can be connected with a water pipe in a threaded manner, the cold water joint 16 is communicated with the cold water cavity 3 and a cold water source through a pipeline, the hot water joint 17 is communicated with the hot water cavity 4 and the hot water source through a pipeline, and the warm water outlet joint 18 is arranged in the mixing cavity 2 and is communicated with the mixing cavity 2 and the switch valve through a pipeline. During operation, cold water flows through the cold water cavity 3 through the cold water joint 16 and enters the mixing cavity 2 through the first through hole 6, hot water flows through the hot water joint 17 and flows through the hot water cavity 4 and enters the mixing cavity 2 through the second through hole 7, the cold water and the hot water are fully mixed in the U-shaped channel of the mixing cavity to obtain warm water at a certain temperature, and then the warm water flows out from the switch valve through the warm water outlet joint 18.

Specifically, as shown in fig. 2, in the thermostatic valve with the above structure, the joints of the cold water joint 16, the hot water joint 17, the warm water outlet joint 18 and the valve body are all provided with the sealing gaskets 19, and the sealing gaskets 19 are rubber sealing gaskets, so that the sealing effect is good, and water leakage at the joints of the valve bodies of the joints can be prevented.

Specifically, as shown in fig. 2, in the thermostatic valve with the above structure, the cold water joint 16 and the hot water joint 17 are both provided with the check valves 20, and the check valves 20 are opened to the cold water cavity 16 and the hot water cavity 17 to prevent backflow or channeling of cold water and hot water when water pressure is unbalanced.

Specifically, as shown in fig. 2, in the thermostatic valve with the above structure, a temperature sensor 21 is further disposed in the mixing chamber near the warm water outlet. The temperature sensor 21 is used for detecting the temperature of water at the warm water outlet in real time, so that the rotating shaft can conveniently adjust the proportion of cold water and hot water.

As shown in fig. 3, specifically, the thermostatic valve is further provided with a connecting piece 9, one end of the connecting piece 9 is connected with the motor 10, the other end of the connecting piece 9 is connected with the rotating shaft 8, and the connecting piece 9 is further provided with a valve core deviation detection optocoupler 22. The valve core deviation detection optocoupler 22 is mainly used for positioning the rotation angle of the rotating shaft 8, so as to determine the rotation angles of the first valve core 11 and the second valve core 12, and further know the proportion of cold water and hot water in the mixing cavity 2.

Specifically, in the thermostatic valve with the above structure, a control unit (not shown in the drawings) is further provided, the control unit includes a control panel and a chip, the control panel is provided with a temperature setting button and a temperature display interface, and the control unit is electrically connected with the driving motor 10 and the temperature sensor 21 respectively. When the temperature control device works, the temperature is set according to actual needs through the control panel, the switch valve is started, the driving motor 10 rotates the rotating shaft according to the set water temperature and the valve core position detected by the valve core deviation detection optocoupler 22, so that the communication area of the first through hole and the second through hole is adjusted, the proportion of cold water and hot water is adjusted, when the water temperature reaches the set temperature, the driving motor stops driving, the temperature sensor still detects the water temperature at a warm water outlet, and when the temperature deviation is greater than the positive and negative 1 ℃ of the set temperature, the motor is started to perform fine adjustment until the temperature is within the range of the positive and negative 1 ℃.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. The utility model provides a thermostatic valve, its characterized in that includes the valve body and sets up mixing chamber, cold water chamber and the hot water chamber on the valve body, cold water chamber and hot water chamber set up in the homonymy to separate with the mixing chamber through the baffle that the centre set up, be equipped with the first through-hole of intercommunication mixing chamber and cold water chamber on the baffle to and the second through-hole of intercommunication mixing chamber and hot water chamber, thermostatic valve still includes the rotation axis, the rotation axis passes cold water chamber and hot water chamber, and driving motor is connected through the connecting piece that sets up to one end, and the other end is fixed on the mounting bracket that the valve body set up, and the rotation axis is equipped with first case and second case respectively in the position that corresponds first through-hole and establish with the second through-hole, is used for controlling the size that first through-hole and second through-hole and.

2. The thermostat valve as claimed in claim 1, wherein the first valve element and the second valve element are provided with arc-shaped projections, one end of the arc edge of each arc-shaped projection is tangent to the circle of the valve element, the other end of each arc-shaped projection protrudes to form an arc-shaped projection which becomes larger gradually from the tangent end, and the first through hole and the second through hole are respectively slot holes which are matched with the arc-shaped projection structures arranged on the first valve element and the second valve element.

3. Thermostat valve according to claim 1, characterized in that the mixing chamber is provided with a baffle having a height which is smaller than the inner hollow height of the mixing chamber, the baffle forming a U-shaped channel for the mixing chamber.

4. The thermostatic valve according to claim 1, further comprising a connecting member, wherein one end of the connecting member is connected to the motor, the other end of the connecting member is connected to the rotating shaft, and the connecting member is further provided with a valve core deviation detection optical coupler.

5. The thermostat valve according to claim 1, wherein the thermostat valve is further provided with a cold water joint, a hot water joint and a warm water outlet joint, the cold water joint communicates the cold water chamber with a cold water source through a pipeline, the hot water joint communicates the hot water chamber with a hot water source through a pipeline, and the warm water outlet joint communicates the mixing chamber with the switch valve through a pipeline.

6. The thermostatic valve according to claim 5, wherein sealing gaskets are arranged at the joints of the cold water joint, the hot water joint and the warm water outlet joint and the valve body.

7. The thermostat valve as claimed in claim 5, characterized in that the cold water connection and the hot water connection are each provided with a one-way valve.

8. The thermostat valve as claimed in claim 5, characterized in that the mixing chamber is also provided with a temperature sensor near the warm water outlet connection.

9. The thermostatic valve according to any one of claims 1-8, further comprising a control unit, wherein the control unit comprises a control panel and a control chip, the control panel is provided with a temperature setting button and a temperature display interface, and the control unit is electrically connected with the driving motor, the temperature sensor and the valve core offset detection optical coupler respectively.