Zero cold water circulation valve
By designing a zero-cold water circulation valve in the intelligent return water system, and automatically controlling the hot water and cold water diversion using the temperature regulating valve and temperature sensing module, the problem of cold water output during the first use is solved, the system structure and cost are optimized, and the water temperature is achieved stable control and overall integration.
Patent Information
- Application Number
- CN202420963850.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing intelligent water return system will directly output cold water when it is first used, causing discomfort to consumers. At the same time, the water return device needs to be plugged in, occupying space and adding connected components, affecting system integration and cost.
A valve with zero cold water circulation is designed. By setting a temperature regulating valve, flow channel, temperature sensing module and a check valve in the valve body, the divergence control of hot water and cold water is realized. The combination of temperature sensing elements and plugs is used to determine the water temperature. Change the direction of water flow automatically to ensure the control of the water temperature of the outlet, and integrate the return water system to reduce external components.
The control of the water temperature of the effluent is realized, the structure of the return water system is optimized, the installation is simplified, the system cost is reduced, and the problem of the plug-in of the return water device affecting the appearance is solved.
Smart Images
Figure CN222316029U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a valve with zero cold water circulation. Background Art
[0002] The intelligent water return system currently on the market uses a water return device and an intelligent pump for cold water return to prevent cold water from coming out directly at the beginning of bathing, which would cause discomfort to consumers. Moreover, in the existing water return suction, the water return device needs to be externally mounted and cannot be integrated into the valve body, which takes up space and increases the number of connecting components. Summary of the invention
[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a valve with zero cold water circulation.
[0004] The utility model is realized by the following technical solutions:
[0005] A valve with zero cold water circulation comprises a valve body, a thermostatic valve is arranged on the body, a flow channel is arranged in the body, one end of the flow channel is a first interface for a hot water source, and the other end of the flow channel is a second interface for a cold water source, a hot water flow channel and a cold water flow channel are also arranged in the body, the first interface of the flow channel can be connected to the hot water inlet of the thermostatic valve via the hot water flow channel, and the second interface of the flow channel can be connected to the cold water inlet of the thermostatic valve via the cold water flow channel; a temperature sensing module is arranged in the flow channel, and the temperature sensing module can divert the cold water flow at the first interface to the second interface.
[0006] In an embodiment of the utility model, a one-way valve is further provided in the flow channel, and the one-way valve is located between the temperature sensing module and the second interface. The one-way valve can prevent the water flow of the second interface from flowing to the first interface through the temperature sensing module.
[0007] In an embodiment of the utility model, the side wall of the flow channel is provided with a first water inlet connecting the hot water flow channel and the first interface, the side wall of the flow channel is provided with a second water inlet connecting the cold water flow channel and the second interface, and the temperature sensing module and / or the one-way valve is located between the first water inlet and the second water inlet.
[0008] In an embodiment of the utility model, the temperature sensing module includes a sleeve arranged in the flow channel, the outer peripheral wall of the sleeve can be sealed with the inner peripheral wall of the flow channel, a bracket is arranged at one end of the sleeve, and a temperature sensing element that can cooperate with the water flow flowing into the first interface is arranged on the bracket, and a water outlet is arranged at the other end of the sleeve, and a plug that can be driven by the temperature sensing element is arranged at the water outlet, and the temperature sensing element can drive the plug to move as the temperature of the water flow flowing into the first interface changes, and a first sealing ring is arranged on the outer periphery of one end of the plug, and the first sealing ring can be sealed with the water outlet.
[0009] In an embodiment of the utility model, a water passage is formed between the bracket and the sleeve, and the water flow of the first interface can flow into the interior of the sleeve through the water passage.
[0010] In an embodiment of the utility model, it also includes an end cover that can be fixed in the flow channel, a water passage is provided between the outer periphery of the end cover and the inner periphery of the flow channel, the water flowing out of the water outlet can flow to the second interface through the water passage, the end cover is located between the sleeve and the second interface, and the opening of the end cover faces the sleeve.
[0011] In the embodiment of the utility model, a water opening is further provided between the end cover and the sleeve, and the water flowing out of the water outlet can flow to the water passage through the water opening.
[0012] In an embodiment of the utility model, the temperature sensing element can be abutted and matched with one end of the plug, and a spring is provided between the other end of the plug and the end cover, and the spring can drive the plug to complete the movement in the first interface direction.
[0013] In the embodiment of the utility model, a second sealing ring is sleeved on the other end of the plug, and the second sealing ring can only be sealed with the inner peripheral wall of the end cover, and the first sealing ring can only be sealed with the water outlet.
[0014] The utility model discloses a zero cold water circulation valve, which has the following beneficial effects: by opening the hot and cold water inlet channels of the valve body, the valve body can discharge the cold water in the hot water inlet pipe to the cold water inlet pipe, thereby realizing the control of the outlet water temperature, and the utility model has a simple structure, optimizes the overall return water system, uses better parts, facilitates the installation of the entire return water system, solves the problem of the external attachment of the return water device affecting the appearance, and reduces the cost of the entire return water system. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a stereogram of the utility model.
[0017] Figure 2 It is a cross-sectional view of the temperature sensing module in the utility model.
[0018] Figure 3 It is a schematic diagram of the utility model when the water outlet is opened.
[0019] Figure 4 yes Figure 3 A magnified schematic diagram of center A.
[0020] Figure 5 It is a schematic diagram of the utility model when the water outlet is closed.
[0021] Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0027] Referring to the drawings of the specification, a valve with zero cold water circulation includes a valve body 10, on which a thermostatic valve 20 is arranged, a flow channel 11 is arranged in the body, one end of the flow channel is a first interface 12 for a hot water source, and the other end of the flow channel is a second interface 13 for a cold water source, a hot water flow channel 14 and a cold water flow channel 15 are also arranged in the body, the first interface of the flow channel can be connected to the hot water inlet of the thermostatic valve via the hot water flow channel, and the second interface of the flow channel can be connected to the cold water inlet of the thermostatic valve via the cold water flow channel; a temperature sensing module 30 is arranged in the flow channel, and the temperature sensing module can divert the cold water flow at the first interface to the second interface, and at the same time, the temperature sensing module can also divide the flow channel into two, the water flow of the first interface flows to the hot water inlet of the thermostatic valve, and the water flow of the second interface flows to the cold water inlet of the thermostatic valve. In one use, the first interface is connected to the water heater, and the second interface is connected to the cold water inlet pipe. When it is needed, the pump of the return water system is started, and the pump will first direct the cold water flowing into the first interface to flow to the second interface through the temperature sensing module until the water flowing into the first interface is hot water (the specific temperature depends on the stroke of the plug driven by the temperature sensing element). At this time, the flow channel is divided into two, and the hot water at this time flows to the hot water inlet of the thermostatic valve. When the thermostatic valve is opened, the temperature-regulated hot water can be discharged, and a temperature-regulated water outlet 16 is also provided on the valve body.
[0028] Preferably, a one-way valve 40 is also provided in the flow channel, and the one-way valve is located between the temperature sensing module and the second interface. The one-way valve can prevent the water flow of the second interface from flowing to the first interface through the temperature sensing module. That is to say, the water flow direction between the first interface and the second interface is single, and backflow will not occur.
[0029] Furthermore, the side wall of the flow channel is provided with a first water inlet 17 connecting the hot water flow channel and the first interface, and the side wall of the flow channel is provided with a second water inlet 18 connecting the cold water flow channel and the second interface, and the temperature sensing module and / or the one-way valve is located between the first water inlet and the second water inlet.
[0030] In one embodiment of the utility model, the temperature sensing module includes a sleeve 31 arranged in the flow channel, the outer peripheral wall of the sleeve can be sealed with the inner peripheral wall of the flow channel to ensure the singleness of the water flow, a bracket 32 is arranged at one end of the sleeve, and a temperature sensing element 33 that can cooperate with the water flow flowing into the first interface is arranged on the bracket, and the temperature sensing element can be a temperature sensing bag, and a water outlet 34 is arranged at the other end of the sleeve, and a plug 35 that can be driven by the temperature sensing element is arranged at the water outlet, and the temperature sensing element can drive the plug to move as the temperature of the water flow flowing into the first interface changes, and a first sealing ring 36 is arranged on the outer periphery of one end of the plug, and the first sealing ring can be sealed with the water outlet. Referring to the drawings of the specification, when the first interface is cold water When the water temperature reaches the set value (consistent with the water temperature of the water softener, such as 60°), the water outlet is blocked and the spring is in a compressed state. The temperature regulating valve can be opened to adjust the water temperature and discharge the water for showering, etc. When the water temperature at the first interface is not in use, the water temperature at the first interface will drop. The temperature sensing element will be retracted and the plug and the first sealing ring will leave the water outlet under the action of the spring. The water outlet is opened and the return water system is turned on. The cold water at the first interface will flow to the second interface to drain the cold water.
[0031] Preferably, a water passage 37 is formed between the bracket and the sleeve, and the water flow of the first interface can flow to the inside of the sleeve through the water passage. It also includes an end cap 50 that can be fixed in the flow channel, and a water passage 51 is provided between the outer periphery of the end cap and the inner periphery of the flow channel, and the water flow out of the water outlet can flow to the second interface through the water passage. The end cap is located between the sleeve and the second interface, and the opening of the end cap faces the sleeve. In other words, the end cap is located between the sleeve and the one-way valve.
[0032] Furthermore, a water opening 52 is provided between the end cover and the sleeve, and the water flowing out of the water outlet can flow to the water passage through the water opening. The temperature sensing element can abut against one end of the plug, and a spring 38 is provided between the other end of the plug and the end cover, and the spring can drive the plug to move in the direction of the first interface. The plug moves toward the second interface by relying on the temperature sensing element, and the plug moves toward the first interface by relying on the force of the spring.
[0033] Furthermore, a second sealing ring 39 is sleeved on the other end of the plug, and the second sealing ring can only be sealed with the inner peripheral wall of the end cover, and the first sealing ring can only be sealed with the water outlet.
[0034] The utility model is more specific: 1. It mainly includes a hot water circuit (that is, the circuit between the first interface and the temperature sensing module), a cold water circuit (that is, the circuit between the first interface and the one-way valve), a thermostatic valve and a thermostatic outlet. The return water circuit between the hot water circuit and the cold water circuit (that is, the circuit between the temperature sensing module and the one-way valve) has a temperature sensing module, and the temperature sensing module controls the on-off of the return water circuit by temperature changes. The temperature sensing module has a built-in temperature sensing element. When the temperature rises, the temperature sensing element changes shape, pushes the plug, and closes the return water circuit; when the temperature drops, the temperature sensing element returns to its initial state, and the plug retreats under the action of the spring to open the return water circuit. There is a one-way valve in the return water circuit to prevent the cold water circuit from flowing into the hot water circuit when the temperature sensing module is not closed. The hot water circuit is divided into two paths in the valve body, one path flows from the return water circuit to the cold water circuit, and the other path flows to the thermostatic valve. The closing of the return water circuit does not affect the flow of hot water to the thermostatic valve.
[0035] Preferably, a mounting hole 19 matching the hot water channel and the cold water channel is also provided on the main body, and a piston 60 is arranged in the mounting hole, which can open or close the flow of the hot water channel and the cold water channel, mainly to facilitate the maintenance of the thermostatic valve to isolate the hot water channel and the cold water channel.
[0036] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A valve with zero cold water circulation, comprising a valve body, on which a thermostatic valve is arranged, characterized in that: A flow channel is provided in the main body, one end of the flow channel is a first interface for a hot water source, and the other end of the flow channel is a second interface for a cold water source. A hot water flow channel and a cold water flow channel are also provided in the main body. The first interface of the flow channel can be connected to the hot water inlet of the thermostatic valve via the hot water flow channel, and the second interface of the flow channel can be connected to the cold water inlet of the thermostatic valve via the cold water flow channel; a temperature sensing module is provided in the flow channel, and the temperature sensing module can divert the cold water flow at the first interface to the second interface.
2. A valve with zero cold water circulation according to claim 1, characterized in that: A one-way valve is also provided in the flow channel, and the one-way valve is located between the temperature sensing module and the second interface. The one-way valve can prevent the water flow of the second interface from flowing to the first interface through the temperature sensing module.
3. A valve with zero cold water circulation according to claim 2, characterized in that: The side wall of the flow channel is provided with a first water inlet connecting the hot water flow channel and the first interface, and the side wall of the flow channel is provided with a second water inlet connecting the cold water flow channel and the second interface. The temperature sensing module and / or the one-way valve is located between the first water inlet and the second water inlet.
4. A valve with zero cold water circulation according to any one of claims 1 to 3, characterized in that: The temperature sensing module includes a sleeve arranged in the flow channel, the outer peripheral wall of the sleeve can be sealed with the inner peripheral wall of the flow channel, a bracket is arranged at one end of the sleeve, and a temperature sensing element that can cooperate with the water flow flowing into the first interface is arranged on the bracket, and a water outlet is arranged at the other end of the sleeve, and a plug that can be driven by the temperature sensing element is arranged at the water outlet, and the temperature sensing element can drive the plug to move as the temperature of the water flow flowing into the first interface changes, and a first sealing ring is arranged on the outer periphery of one end of the plug, and the first sealing ring can be sealed with the water outlet.
5. A valve with zero cold water circulation according to claim 4, characterized in that: A water passage is formed between the bracket and the sleeve, and water from the first interface can flow into the interior of the sleeve through the water passage.
6. A valve with zero cold water circulation according to claim 5, characterized in that: It also includes an end cover that can be fixed in the flow channel, a water passage is provided between the outer periphery of the end cover and the inner periphery of the flow channel, the water flowing out of the water outlet can flow to the second interface through the water passage, the end cover is located between the sleeve and the second interface, and the opening of the end cover faces the sleeve.
7. A valve with zero cold water circulation according to claim 6, characterized in that: A water opening is also provided between the end cover and the sleeve, and the water flowing out of the water outlet can flow to the water passage through the water opening.
8. A valve with zero cold water circulation according to claim 7, characterized in that: The temperature sensing element can be abutted and matched with one end of the plug, and a spring is arranged between the other end of the plug and the end cover, and the spring can drive the plug to complete the movement in the first interface direction.
9. A valve with zero cold water circulation according to claim 8, characterized in that: The other end of the plug is sleeved with a second sealing ring, and the second sealing ring can only be sealed with the inner peripheral wall of the end cover, and the first sealing ring can only be sealed with the water outlet.