Constant-temperature water mixing valve

Abstract

A constant-temperature water mixing valve comprises a valve body which is provided with a first valve cavity, a valve body butt joint opening, a hot water opening and a water outlet, and the valve body butt joint opening, the hot water opening and the water outlet are communicated with the first valve cavity. The constant-temperature water mixing valve further comprises a water feeding and supplementing integrated body, the water feeding and supplementing integrated body is provided with a second valve cavity, an integrated body butt joint opening, a water inlet, a water supplementing part, a water supplementing opening and a cold water opening, the integrated body butt joint opening, the water inlet, the water supplementing part, the water supplementing opening and the cold water opening are communicated with the second valve cavity, and the integrated body butt joint opening, the water inlet, the water supplementing part, the water supplementing opening and the cold water opening are integrally formed in the water feeding and supplementing integrated body. The utility model provides a constant-temperature water mixing valve which enables the overall size of the constant-temperature water mixing valve to be more standardized and reduces the production cost of the constant-temperature water mixing valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing valves, specifically relating to a thermostatic mixing valve. Background Technology

[0002] Thermostatic mixing valves are widely used in heating equipment such as electric water heaters, solar water heaters, and geothermal heating systems. Their main function is to supply cold water to the heating equipment and to mix cold and hot water for user use. Conventional heating equipment includes heat exchange tubes, a water tank, and a heating element. The water in the tank is heated by the heating element and exchanges heat with the water in the heat exchange tubes to provide hot water to the external environment. The thermostatic mixing valve supplies cold water to both the heat exchange tubes and the water tank. Current thermostatic mixing valves primarily supply cold water to the water tank via a water supply pipe. The problem is that this water supply pipe is made of metal and externally connected to the valve body. These pipes are typically handmade, and external factors during manufacturing can cause inconsistencies in their length, resulting in a non-standard overall size for the thermostatic mixing valve. Furthermore, the manufacturing of the water supply pipes requires additional materials and labor, increasing the material and processing costs of the thermostatic mixing valve and ultimately reducing its market competitiveness.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome at least one of the shortcomings of the prior art and to provide a thermostatic mixing valve that makes the overall size of the thermostatic mixing valve more standardized and reduces the production cost of the thermostatic mixing valve.

[0005] To achieve the above objectives, the technical solution provided by this utility model embodiment is as follows:

[0006] A thermostatic mixing valve includes a valve body, the valve body having a first valve cavity, a valve body interface communicating with the first valve cavity, a hot water outlet for connecting to an external heating device, and a water outlet for connecting to an external water source.

[0007] The thermostatic mixing valve also includes an inlet and outlet water supply assembly. The inlet and outlet water supply assembly is provided with a second valve chamber, an assembly interface connecting to the second valve chamber, an inlet for connecting to an external water supply source, an outlet water supply part and an outlet water supply part for replenishing water to the water tank of the heating equipment, and a cold water outlet water supply pipe for connecting to the external heating equipment. The assembly interface, inlet water supply part, outlet water supply part and cold water outlet are integrally formed on the inlet and outlet water supply assembly.

[0008] The valve body interface and the integrated body interface are assembled together. The water supply and replenishment integrated body is set on the valve body and connects the first valve chamber and the second valve chamber.

[0009] An assembly structure is provided between the valve body and the water inlet / outlet assembly. The assembly structure includes a first assembly part disposed at the valve body interface and a second assembly part disposed at the assembly interface. The first assembly part is located on the inner wall of the valve body interface, and the second assembly part is located on the outer wall of the assembly interface. The first assembly part and the second assembly part correspond to each other. When the second assembly part is inserted into the first assembly part, the water inlet / outlet assembly is installed on the valve body and connects the first valve chamber and the second valve chamber.

[0010] The thermostatic mixing valve further includes a first sealing component, which is located between the first assembly part and the second assembly part and is disposed on the first assembly part and / or the second assembly part. There are several first sealing components, which are arranged at intervals along the length direction of the thermostatic mixing valve.

[0011] The thermostatic mixing valve also includes a heat dissipation mounting plate for mounting the silicon controlled rectifier (SCR) and dissipating heat from the SCR. The heat dissipation mounting plate is located at the front of the side of the water inlet / outlet assembly and is connected to the second valve chamber.

[0012] The water supply and replenishment assembly is provided with a heat dissipation section, and the heat dissipation mounting plate is made of metal material and can be detachably installed on the heat dissipation section.

[0013] The thermostatic mixing valve also includes a second sealing component, which is disposed between the heat dissipation mounting plate and the water inlet / outlet assembly to seal the gap between the two.

[0014] The first valve chamber includes a mixing chamber and a hot water chamber connected to the mixing chamber. The valve body connection port is connected to the mixing chamber and is located on the right end of the valve body. The hot water outlet is connected to the hot water chamber and is located on the upper part of the side of the valve body. The water outlet is connected to the mixing chamber and is located on the lower part of the side of the valve body.

[0015] The second valve chamber includes a cold water chamber that communicates with the mixing chamber. The interface of the integrated body communicates with the cold water chamber and is located on the left end of the water inlet and outlet integrated body. The water inlet communicates with the cold water chamber and is located on the lower part of the side of the water inlet and outlet integrated body. The cold water outlet communicates with the cold water chamber and is located on the upper part of the side of the water inlet and outlet integrated body. The water replenishment part extends from the water inlet and outlet integrated body to the right. The water replenishment part communicates with the cold water chamber and is located on the right end of the water replenishment part.

[0016] The valve body is also provided with a mixing outlet and a mixing inlet. The mixing outlet is located at the rear of the side of the valve body and is connected to the mixing chamber. The mixing inlet is located at the rear of the side of the valve body and is connected to the outlet. The mixing outlet and the mixing inlet are interconnected so that the outlet is connected to the mixing chamber.

[0017] The thermostatic mixing valve also includes a secondary compensation heating device to reheat the water output from the mixing chamber. The secondary compensation heating device is disposed on the valve body and located on the mixing outlet and / or mixing inlet, and is respectively connected to the mixing chamber and the outlet.

[0018] The thermostatic mixing valve also includes a valve core, an active water temperature regulating mechanism, and a passive water temperature regulating mechanism. The valve core is disposed in the mixing chamber, the active water temperature regulating mechanism is disposed in the mixing chamber and connected to the valve core, and the passive water temperature regulating mechanism is disposed on the valve body and connected to the valve core. The active water temperature regulating mechanism and / or the passive water temperature regulating mechanism adjust the flow rate of cold water and hot water in the mixing chamber by moving the valve core.

[0019] The beneficial effects of this utility model are as follows:

[0020] This utility model, through the adoption of the above technical solution, provides a thermostatic mixing valve comprising a valve body and an inlet / outlet integrated assembly. The valve body interface, hot water inlet, and outlet are integrally formed on the valve body. The integrated assembly interface, inlet, replenishment part, replenishment port, and cold water inlet are integrally formed on the inlet / outlet integrated assembly. The valve body interface and the integrated assembly interface are assembled together and interconnected, enabling the thermostatic mixing valve to have a water replenishment function without the need for additional metal pipes or other components. This makes the overall size of the thermostatic mixing valve more standardized, and the absence of additional metal pipes or other components during production reduces the material and processing costs of the thermostatic mixing valve, thereby lowering the production cost and improving the product's market competitiveness. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a thermostatic mixing valve according to an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a thermostatic mixing valve according to an embodiment of the present invention.

[0023] Figure 3 for Figure 2 Enlarged view of part A.

[0024] Figure 4 This is a cross-sectional view of a thermostatic mixing valve with a secondary compensation heating device according to an embodiment of the present invention.

[0025] Figure 5 This is a cross-sectional view of a thermostatic mixing valve according to an embodiment of the present invention.

[0026] Figure 6 This is an exploded view of a thermostatic mixing valve according to an embodiment of the present invention.

[0027] Figure 7 This is an exploded view of a thermostatic mixing valve according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of water flow in a thermostatic mixing valve according to an embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram of water flow in a thermostatic mixing valve according to an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram illustrating the use of a thermostatic mixing valve according to an embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0032] See Figure 1-10 This thermostatic mixing valve includes a valve body 11 and an inlet / outlet water assembly 12;

[0033] The valve body 11 is provided with a first valve cavity, a valve body interface 112, a hot water port 110, and a water outlet 111. In this embodiment, the valve body interface 112, the hot water port 110, and the water outlet 111 are integrally formed on the valve body 11. The first valve cavity includes a mixing chamber 103 and a hot water chamber 102 that communicates with the mixing chamber 103. The valve body interface 112 communicates with the mixing chamber 103 and is located on the right end of the valve body 11. The hot water port 110 communicates with the hot water chamber 102 and is located on the upper part of the side of the valve body 11, so that the thermostatic mixing valve is connected to the water outlet pipe of an external heating device. The water outlet 111 communicates with the mixing chamber 103 and is located on the lower part of the side of the valve body 11, so that the thermostatic mixing valve is connected to an external water source.

[0034] The water inlet / outlet assembly 12 is provided with a second valve chamber, an assembly interface 125, a water inlet 121, a water replenishment section 120, a water replenishment port 123, and a cold water port 122. In this embodiment, the assembly interface 125, the water inlet 121, the water replenishment section 120, the water replenishment port 123, and the cold water port 122 are integrally formed on the water inlet / outlet assembly 12. The second valve chamber includes a cold water chamber 101 that communicates with the mixing chamber 103. The assembly interface 125 communicates with the cold water chamber 101 and is located at the left end of the water inlet / outlet assembly 12. The upper part of the water inlet 121 is connected to the cold water chamber 101 and is located on the lower part of the side of the water inlet and water supply integrated body 12, so that the thermostatic mixing valve is connected to the external water supply source. The cold water inlet 122 is connected to the cold water chamber 101 and is located on the upper part of the side of the water inlet and water supply integrated body 12, so that the thermostatic mixing valve is connected to the water inlet pipe of the heating equipment. The water supply part 120 extends from the water inlet and water supply integrated body 12 to the right. The water supply inlet 123 is connected to the cold water chamber 101 and is located on the right end of the water supply part 120, so that the thermostatic mixing valve supplies water to the water tank of the heating equipment.

[0035] The valve body interface 112 and the integrated body interface 125 are assembled together through an assembly structure, so that the water inlet / outlet integrated body 12 is installed on the valve body 11 and connects the first valve chamber and the second valve chamber. Through the above technical solution, the valve body 11 and the water inlet / outlet integrated body 12 are assembled together and connected to each other to form a thermostatic mixing valve. This allows the thermostatic mixing valve to have a water replenishment function without the need to add metal pipes or other components. It also makes the overall size of the thermostatic mixing valve more standardized. Furthermore, the thermostatic mixing valve does not require the addition of metal pipes or other components during production, which reduces the material and processing costs of the thermostatic mixing valve, lowers the production cost of the thermostatic mixing valve, and improves the market competitiveness of the product.

[0036] Furthermore, in this embodiment, the assembly structure includes a first assembly part 1120 and a second assembly part 1250. Specifically, the first assembly part 1120 is preferably an assembly hole and is disposed on the inner wall of the valve body interface 112, and the second assembly part 1250 is preferably an assembly post and is disposed on the outer wall of the integrated body interface 125. The first assembly part 1120 and the second assembly part 1250 correspond to each other, that is, the radial dimension of the first assembly part 1120 is the same as the radial dimension of the second assembly part 1250. When the second assembly part 1250 is inserted into the first assembly part 1120, the water supply and replenishment integrated body 12 is installed on the valve body 11 and connects the cold water chamber 101 and the mixing chamber 103. This is understood by those skilled in the art.

[0037] Furthermore, the thermostatic mixing valve also includes a first sealing component 8. Specifically, in this embodiment, the first sealing component 8 is preferably a sealing ring and is located between the first assembly part 1120 and the second assembly part 1250. The second assembly part 1250 is provided with a groove for installing the first sealing component 8. The first sealing component 8 is disposed on the groove of the second assembly part 1250. Through the above technical solution, the gap between the valve body 11 and the water inlet / outlet integrated body 12 is sealed. In this embodiment, the number of first sealing components 8 is preferably two and they are arranged at intervals along the length direction of the thermostatic mixing valve. Through the above technical solution, the sealing performance between the valve body 11 and the water inlet / outlet integrated body 12 is further improved, which can be understood by those skilled in the art.

[0038] Furthermore, the thermostatic mixing valve also includes a heat dissipation mounting plate 3, and a heat dissipation part 124 is provided on the water inlet / outlet integrated body 12. Specifically, in this embodiment, the heat dissipation part 124 is located at the front of the side of the valve body 11 and communicates with the cold water chamber 101. The heat dissipation mounting plate 3 is preferably made of steel and can be detachably installed on the heat dissipation part 124. The thyristor is installed on the surface of the heat dissipation mounting plate 3. When the water in the cold water chamber 101 flows, it can dissipate heat from the thyristor located on the heat dissipation mounting plate 3. The valve body 11 integrates the heat dissipation function for the thyristor, which can eliminate the need for a heat dissipation mechanism located on the heating equipment pipeline. Through the above technical solutions, the thermostatic mixing valve has a higher degree of structural integration, and the pipeline structure of the heating equipment is simpler, more compact, and more aesthetically pleasing, which can be understood by those skilled in the art.

[0039] Furthermore, the thermostatic mixing valve also includes a second sealing component 4. Specifically, in this embodiment, the second sealing component 4 is preferably a sealing ring and is disposed between the heat dissipation mounting plate 3 and the valve body 11. Through the above technical solution, the second sealing component 4 can seal the gap between the heat dissipation mounting plate 3 and the valve body 11, preventing water from leaking from the gap. This is understood by those skilled in the art.

[0040] Furthermore, the valve body 11 is also provided with a mixing outlet 113 and a mixing inlet 114. Specifically, in this embodiment, the mixing outlet 113 is located at the rear of the side of the valve body 11 and connects to the mixing chamber 103, and the mixing inlet 114 is located at the rear of the side of the valve body 11 and connects to the outlet 111. When the mixing outlet 113 and the mixing inlet 114 are connected to each other through a pipeline, the outlet 111 is directly connected to the mixing chamber 103 and provides water at a suitable temperature to an external water source. The valve body 11 also includes a secondary compensation heating device 7. Specifically, the secondary compensation heating device 7 is preferably an instantaneous heater, which is located on the mixing outlet 113 and connects to the mixing chamber 103 and the outlet 111 respectively, and performs secondary heating on the water output from the mixing chamber 103, so that the temperature of the water provided by the thermostatic mixing valve can further meet the user's requirements and improve the user experience. This is understood by those skilled in the art.

[0041] Furthermore, the thermostatic mixing valve also includes a valve core 2, an active water temperature regulating mechanism 5, and a passive water temperature regulating mechanism 6;

[0042] Specifically, in this embodiment, the valve core 2 is disposed in the mixing chamber 103. The water temperature active adjustment mechanism 5 includes a push block, a temperature sensing rod, and a spring, and is disposed in the mixing chamber 103. When the paraffin block in the temperature sensing rod is heated and expands, the temperature sensing rod cooperates with the push block and pushes the valve core to move away from the push block, so that the cold water chamber 101 is connected to the mixing chamber 103, the cold water flow rate in the mixing chamber 103 increases, and the water temperature in the mixing chamber 103 decreases. When the paraffin block in the temperature sensing rod cools down and contracts, the spring pushes the valve core to move closer to the push block, so that the cold water chamber 101 is disconnected from the mixing chamber 103, the cold water flow rate in the mixing chamber 103 decreases, and the water temperature in the mixing chamber 103 increases. Through the above technical solution, the constant temperature mixing valve can actively adjust the water temperature, which can be understood by those skilled in the art.

[0043] The passive water temperature regulating mechanism 6 includes a motor and a valve stem. The motor is fixed to the valve body 11 via a mounting plate and electrically connected to the control device of the heating equipment. The valve stem is located in the mixing chamber 103. The working end of the valve stem abuts against the end of the push block away from the valve core 2. The control end of the valve stem extends out of the valve body 11 and the mounting plate and is connected to the drive component 41. The motor rotates via the control device of the heating equipment. When the valve stem rotates clockwise, its working end moves towards the push block, and the valve core 2 moves away from the push block via the push block. This connects the cold water chamber 101 to the mixing chamber 103, increasing the flow rate of cold water in the mixing chamber 103 and lowering the water temperature. When the valve stem rotates counterclockwise, its working end moves away from the push block, and the spring pushes the valve core 2 to move closer to the push block, disconnecting the cold water chamber 101 from the mixing chamber 103. This reduces the flow rate of cold water in the mixing chamber 103 and increases the water temperature. Through the above technical solution, the thermostatic mixing valve can passively adjust the water temperature, which is understandable to those skilled in the art.

[0044] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A thermostatic mixing valve, characterized in that, Includes a valve body (11), which has a first valve chamber, a valve body interface (112) communicating with the first valve chamber, a hot water outlet (110) for connecting to an external heating device, and a water outlet (111) for connecting to an external water source. The thermostatic mixing valve also includes an inlet / outlet water assembly (12), which is provided with a second valve chamber, an assembly interface (125) connecting the second valve chamber, an inlet (121) for connecting to an external water supply source, a water replenishment part (120) and a water replenishment port (123) for replenishing water to the water tank of the heating equipment, and a cold water port (122) for connecting to the water inlet pipe of the external heating equipment. The assembly interface (125), the inlet (121), the water replenishment part (120), the water replenishment port (123), and the cold water port (122) are integrally formed on the inlet / outlet water assembly (12). The valve body interface (112) and the integrated body interface (125) are assembled together. The water supply integrated body (12) is set on the valve body (11) and connects the first valve chamber and the second valve chamber.

2. The thermostatic mixing valve according to claim 1, characterized in that, An assembly structure is provided between the valve body (11) and the water supply and replenishment assembly (12). The assembly structure includes a first assembly part (1120) disposed on the valve body interface (112) and a second assembly part (1250) disposed on the assembly interface (125). The first assembly part (1120) is located on the inner wall of the valve body interface (112), and the second assembly part (1250) is located on the outer wall of the assembly interface (125). The first assembly part (1120) and the second assembly part (1250) correspond to each other. When the second assembly part (1250) is inserted into the first assembly part (1120), the water supply and replenishment assembly (12) is installed on the valve body (11) and connects the first valve chamber and the second valve chamber.

3. The thermostatic mixing valve according to claim 2, characterized in that, The thermostatic mixing valve further includes a first sealing component (8), which is located between the first assembly part (1120) and the second assembly part (1250) and is disposed on the first assembly part (1120) and / or the second assembly part (1250). There are several first sealing components (8) and they are arranged at intervals along the length direction of the thermostatic mixing valve.

4. The thermostatic mixing valve according to claim 1, characterized in that, The thermostatic mixing valve also includes a heat dissipation mounting plate (3) for installing and dissipating heat from the thyristor. The heat dissipation mounting plate (3) is located at the front of the side of the water inlet / outlet assembly (12) and is connected to the second valve chamber.

5. The thermostatic mixing valve according to claim 4, characterized in that, The water supply and replenishment assembly (12) is provided with a heat dissipation part (124), and the heat dissipation mounting plate (3) is made of metal material and can be detachably installed on the heat dissipation part (124).

6. The thermostatic mixing valve according to claim 4, characterized in that, The thermostatic mixing valve also includes a second sealing component (4), which is disposed between the heat dissipation mounting plate (3) and the water inlet / outlet assembly (12) to seal the gap between them.

7. The thermostatic mixing valve according to any one of claims 1-6, characterized in that, The first valve chamber includes a mixing chamber (103) and a hot water chamber (102) connected to the mixing chamber (103). The valve body interface (112) is connected to the mixing chamber (103) and is located on the right end of the valve body (11). The hot water port (110) is connected to the hot water chamber (102) and is located on the upper part of the side of the valve body (11). The water outlet (111) is connected to the mixing chamber (103) and is located on the lower part of the side of the valve body (11). The second valve chamber includes a cold water chamber (101) that communicates with the mixing chamber (103). The integrated interface (125) communicates with the cold water chamber (101) and is located on the left end of the water inlet and outlet integrated body (12). The water inlet (121) communicates with the cold water chamber (101) and is located on the lower part of the side of the water inlet and outlet integrated body (12). The cold water outlet (122) communicates with the cold water chamber (101) and is located on the upper part of the side of the water inlet and outlet integrated body (12). The water supply part (120) extends from the water inlet and outlet integrated body (12) to the right. The water supply outlet (123) communicates with the cold water chamber (101) and is located on the right end of the water supply part (120).

8. The thermostatic mixing valve according to claim 7, characterized in that, The valve body (11) is also provided with a mixing outlet (113) and a mixing inlet (114). The mixing outlet (113) is located at the rear of the side of the valve body (11) and is connected to the mixing chamber (103). The mixing inlet (114) is located at the rear of the side of the valve body (11) and is connected to the outlet (111). The mixing outlet (113) and the mixing inlet (114) are connected to each other so that the outlet (111) is connected to the mixing chamber (103).

9. The thermostatic mixing valve according to claim 8, characterized in that, The thermostatic mixing valve also includes a secondary compensation heating device (7) to heat the water output from the mixing chamber (103) for a second time. The secondary compensation heating device (7) is disposed on the valve body (11) and located on the mixing outlet (113) and / or the mixing inlet (114) and is respectively connected to the mixing chamber (103) and the outlet (111).

10. The thermostatic mixing valve according to claim 7, characterized in that, The thermostatic mixing valve also includes a valve core (2), an active water temperature regulating mechanism (5), and a passive water temperature regulating mechanism (6). The valve core (2) is located in the mixing chamber (103). The active water temperature regulating mechanism (5) is located in the mixing chamber (103) and connected to the valve core (2). The passive water temperature regulating mechanism (6) is located on the valve body (11) and connected to the valve core (2). The active water temperature regulating mechanism (5) and / or the passive water temperature regulating mechanism (6) adjust the flow rate of cold water and hot water in the mixing chamber (103) by moving the valve core (2).

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