Water temperature adjusting mechanism of instant heating faucet
By designing a trigger in the instant hot water faucet to control the rotational trajectory of the micro switch, the sequential supply of cold water and hot water is achieved, and the scalding problem caused by the thermal inertia of the heating body is solved, improving safety and user experience.
Patent Information
- Application Number
- CN202422536401.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-21
AI Technical Summary
After using hot water for the existing hot water faucet, the residual hot water will be higher than expected due to the thermal inertia of the heating body, which will easily burn the user, and the safety performance needs to be improved.
A water temperature regulating mechanism of a hot water faucet is designed to control the micro switch through the rotational trajectory of the trigger to achieve the sequential supply of cold water and hot water, avoid misoperation, and discharge residual hot water through cold water before and after the heating operation begins, reducing the influence of thermal inertia of the heating body.
It effectively avoids scalds caused by misoperation, improves the safety of the use of instant hot water faucets, reduces the residual heat of the heating body through cold water, and improves safety performance.
Smart Images
Figure CN223120819U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of faucets, and particularly to a water temperature regulating mechanism for an instant hot faucet. Background Art
[0002] An instant hot faucet, also known as an electric hot faucet, refers to a faucet that can discharge hot water within 3 s to 5 s after being turned on. In recent years, due to the advantages of instant hot faucets such as being able to discharge both hot water and cold water, and being easy to install and operate, they have been widely used. The switches of existing instant hot faucets are generally two-way operated, that is, the closed position of the switch is set in the middle, and the switch can be rotated upward and downward or left and right. The two sides of the starting position of the switch respectively correspond to cold water and hot water. For such a two-way operated instant hot faucet, during use, there is a high probability of being scalded due to incorrect selection. For example, when cold water is needed, the switch is rotated towards the hot water direction. Moreover, in this way of discharging water, when the switch rotates from the middle closed position to both sides to discharge water (discharge hot water or cold water), the larger the rotation angle, the greater the water discharge flow rate of the machine, and vice versa, the smaller the flow rate until the middle position is closed. The heating principle of an electric hot faucet is that when the power is constant, the larger the flow rate, the lower the temperature, and the smaller the flow rate, the higher the temperature. Therefore, when closing the valve core after using hot water, the flow rate decreases, and the water temperature in the heating cavity becomes higher (although the action of closing the valve core is relatively fast during normal use, the increase in the water temperature of the heating element caused by this action is not obvious). However, due to the fact that traditional heating elements have a certain thermal inertia (residual temperature), after the valve core is closed, the residual hot water that cannot be discharged in the cavity will further increase in temperature due to the thermal inertia (residual temperature) of the heating element. This will cause the water temperature of the hot water in the heating cavity to be higher than the temperature after the previous use when the user uses hot water again within a short period of time after using hot water last time. Therefore, the hot water in the first few seconds of water discharge will be scalding hot, scalding the user, and the safety performance needs to be improved. Summary of the Utility Model
[0003] In order to solve the above-mentioned drawbacks and deficiencies existing in the prior art, the purpose of this application is to provide a water temperature regulating mechanism for an instant hot faucet, which can effectively improve the use safety of the instant hot faucet.
[0004] To achieve the above purpose, a water temperature regulating mechanism for an instant hot faucet of this application includes a water inlet pipe, a heating device, a microswitch, and a flow regulating valve. The water inlet pipe is communicated with the heating device. The microswitch is arranged on the power connection line of the heating device. The flow regulating valve is arranged on the water inlet pipe to regulate the water flow rate flowing from the water inlet pipe to the heating device. The flow regulating valve includes a rotating shaft, and a triggering member is arranged on the rotating shaft. The triggering member rotates together with the rotating shaft, and the microswitch is arranged on the rotation trajectory of the triggering member;
[0005] The rotation trajectory of the trigger includes a starting position and an ending position. The trigger rotates between the starting position and the ending position, and the microswitch is disposed between the starting position and the ending position.
[0006] Further, an intermediate position is provided between the starting position and the ending position. The microswitch is disposed between the intermediate position and the ending position, and the microswitch is close to the intermediate position.
[0007] Further, when the trigger is at the starting position, one end of the trigger is at the starting position, and the other end of the trigger is between the starting position and the intermediate position.
[0008] Further, the arc length of the trigger is greater than or equal to the arc length from the intermediate position to the ending position.
[0009] Further, the arc length of the trigger is less than the arc length from the starting position to the intermediate position.
[0010] Further, a limiting block is also provided on the rotation trajectory of the trigger. When the trigger is at the ending position, the trigger abuts against the limiting block.
[0011] Further, a guiding inclined surface is provided at one end of the trigger away from the starting position, and the arc length from the guiding inclined surface to the starting position gradually decreases from top to bottom.
[0012] Further, when the trigger rotates from the starting position to the intermediate position, the water flow rate flowing from the water inlet pipe to the heating device gradually increases. When the trigger rotates from the intermediate position to the ending position, the water flow rate flowing from the water inlet pipe to the heating device gradually decreases.
[0013] Further, when the trigger rotates from the ending position to the intermediate position, the water flow rate flowing from the water inlet pipe to the heating device gradually increases. When the trigger rotates from the intermediate position to the starting position, the water flow rate flowing from the water inlet pipe to the heating device gradually decreases.
[0014] Further, the heating device is a cast aluminum heating body.
[0015] Compared with the prior art, the utility model has the following beneficial technical effects: The trigger can rotate back and forth between the starting position and the ending position, and the micro switch is arranged between the starting position and the ending position. The rotating shaft starts to rotate from the starting position, that is, the hot water faucet first discharges cold water. After triggering the micro switch, the hot water faucet then discharges hot water, and the situation of directly discharging hot water will not occur, effectively avoiding the situation of scalding caused by improper operation. And in this kind of water discharge mode, whether it is the opening (off → cold water → hot water) or closing (hot water → cold water → off) action, before and after the heating action starts and ends, the heating body will pass through cold water, which makes the residual hot water in the heating body be discharged to varying degrees, enabling the heating body to cool down quickly, thereby reducing the influence of the residual temperature and the thermal inertia of the heating body on the user, and it is not easy for the user to be scalded, greatly improving the use safety of the instant hot water faucet. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of an instant hot water faucet according to an embodiment of the present application;
[0017] Figure 2 is Figure 1 the exploded view in
[0018] Figure 3 is Figure 2 the assembly drawing of the flow regulating valve and the water inlet pipe in
[0019] Figure 4 is Figure 3 the exploded view of
[0020] Figure 5 is a schematic structural diagram of the rotating shaft and the trigger according to an embodiment of the present application;
[0021] Figure 6 is a schematic diagram of the rotation trajectory of the trigger according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.
[0023] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this utility model belongs. Similar words such as "one" or "one" used in this application specification and claims do not indicate a quantitative limitation, but indicate that there is at least one. Similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in this application specification and the attached claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.
[0024] See also Figures 1 - 6 As shown, a water temperature regulating mechanism of an instant hot water faucet includes a water outlet faucet 1, a water inlet pipe 2, a heating device, a micro switch 3 and a flow regulating valve 4. The water inlet pipe 2 is connected to the heating device, and the heating device is connected to the water outlet faucet 1. The micro switch 3 is arranged on the wiring circuit of the heating device. The flow regulating valve 4 is arranged on the water inlet pipe 2 for regulating the water flow from the water inlet pipe 2 to the heating device. The flow regulating valve 4 includes a valve core, a rotating shaft 41 connected to the valve core in a transmission manner, and a shell 42 sleeved on an end of the rotating shaft 41 away from the valve core. The valve core is arranged in the water inlet pipe 2 and is not shown. The rotating shell 42 drives the rotating shaft 41 and the valve core to rotate in turn, thereby adjusting the water flow from the water inlet pipe 2 to the heating device. A trigger member 43 is arranged on the rotating shaft 41, and the trigger member 43 rotates with the transmission shaft 41. The micro switch 3 is arranged on the rotation track 5 of the trigger member 41.
[0025] Please refer to Figure 6 As shown, the rotation trajectory 5 of the trigger member 43 is arc-shaped and includes a starting position 51, an intermediate position 52 and an end position 53. When the trigger member 43 is located at the starting position 51, one end of the trigger member 43 is located at the starting position 51, and the other end of the trigger member 43 is located between the starting position 51 and the intermediate position 52. When the housing 42 is rotated to rotate the trigger member 43 to the intermediate position 52, the end of the trigger member 43 away from the starting position 51 is located at the intermediate position 52. The housing 42 is continued to be rotated to rotate the trigger member 43 to the end position 53. At this time, the end of the trigger member 43 away from the starting position 51 is located at the end position 53.
[0026] The micro switch 3 is arranged between the intermediate position 52 and the termination position 53, and the micro switch 3 is close to the intermediate position 52. That is, the trigger 43 rotates starting from the starting position 51. When the trigger 43 rotates to the intermediate position 52, the heating device does not work, and the water outlet faucet 1 provides cold water. When the trigger 43 continues to rotate towards the termination position 53, the micro switch 3 is triggered, and the heating device starts to work. At this time, the water outlet faucet 1 provides hot water. When the trigger 43 rotates from the termination position 53 to the intermediate position 52, the heating device works, and the water outlet faucet 1 provides hot water. When the trigger 43 rotates from the intermediate position 52 to the starting position 51, the heating device does not work, and the water outlet faucet 1 provides cold water. When the trigger 43 is at the starting position 51, the water outlet faucet 1 does not discharge water.
[0027] When the housing 42 rotates, cold water is provided first and then hot water, unlike the bidirectional rotation in the prior art. That is, this instant hot water faucet does not require the user to select the rotation direction, avoiding scalding caused by misoperation. And in this way of discharging water, whether this instant hot water faucet is turned on (off → cold water → hot water) or turned off (hot water → cold water → off), the heating device will pass through cold water before and after the heating operation starts and ends. This enables the residual hot water in the heating device to be discharged to varying degrees, quickly cooling down the heating device, thereby reducing the influence of the residual temperature and the thermal inertia of the heating device on the user, and effectively avoiding the situation of being scalded by hot water when selecting cold water, further improving the use safety of the instant hot water faucet.
[0028] To effectively ensure the supply of cold and hot water, the arc length of the trigger 43 is less than the arc length from the starting position 51 to the intermediate position 52, and the arc length of the trigger 43 is greater than or equal to the arc length from the intermediate position 52 to the termination position 53. Preferably, the arc length of the trigger 43 is equal to the arc length from the intermediate position 52 to the termination position 53.
[0029] To limit the rotation of the trigger 43, the housing 42, and the rotating shaft 41, a limiting block 44 is also provided on the rotation trajectory of the trigger 43. When the trigger 43 is at the termination position 53, the end of the trigger 43 far from the starting position 51 abuts against the limiting block 53. Of course, the limiting block 53 may not be provided on the rotation trajectory of the trigger 43, and may be provided on the rotation trajectory of the housing 42 and / or the rotating shaft 41, as long as the rotation trajectory of the trigger 43 can be limited.
[0030] To facilitate the triggering of the microswitch 3, a guiding inclined surface 431 is provided at one end of the triggering member 43 away from the starting position 51, and the arc length from the guiding inclined surface 431 to the starting position 51 gradually decreases from top to bottom. When the triggering member 43 touches the microswitch 3, due to the setting of the guiding inclined surface 431, the microswitch 3 can be effectively pressed downward to trigger the microswitch 3. Moreover, the arc length of the triggering member 43 is greater than or equal to the arc length from the intermediate position 52 to the termination position 53, which means that when the triggering member 43 rotates between the intermediate position 52 and the termination position 53, the triggering member 43 always triggers the microswitch 3 to turn on, and the power connection circuit of the heating device is in a conducting state.
[0031] Wherein, the height of the limiting block 44 is greater than the height of the microswitch 3 when it is not triggered, and the height of the limiting block 44 is greater than the vertical height of the guiding inclined surface 431.
[0032] In this embodiment, a circular connection disc 45 is fixedly provided on the outer periphery of the rotating shaft 41, and the triggering member 43 protrudes from the outer periphery of the circular connection disc 45.
[0033] In order to better identify that the triggering member 43 rotates to or passes through the intermediate position 52, it is preferably to set a prompt sound and / or a display prompt at this time. For example, when the triggering member 43 rotates to the intermediate position 52, the instant hot water faucet emits a slow rhythm of beeping sound, and / or the housing 42 shows green, indicating that cold water is provided at this time. After the triggering member 43 continues to rotate and passes through the intermediate position 52, the instant hot water faucet emits a rapid beeping sound of beep beep beep, and / or the housing 42 shows red, indicating that hot water is provided at this time. Of course, the prompt sound and the display prompt can also be in other forms. For example, a display screen 7 is directly provided on the instant hot water faucet, and the water temperature is displayed in real time through the display screen 7. Even more, it can also be set or input by the user in other prompt methods to meet different usage habits of the user. Of course, the setting methods are not limited to the above several.
[0034] In this embodiment, a mounting seat 21 is provided on the water inlet pipe 2. Components such as the valve core are arranged in the water inlet pipe 2 through the mounting seat 21. The microswitch 3, the limiting block 44, etc. are arranged on the mounting seat 21. A part of the rotating shaft 41 penetrates upward through the mounting seat 21 and is exposed above it, and the housing 42 is arranged above the mounting seat 21.
[0035] In this embodiment, when the trigger 43 rotates from the starting position 51 to the intermediate position 52, the water flow rate flowing from the water inlet pipe 2 to the heating device gradually increases. When the trigger 43 rotates from the intermediate position 52 to the end position 53, the water flow rate flowing from the water inlet pipe 2 to the heating device gradually decreases. When the working power of the heating device is constant, when the trigger 43 rotates from the intermediate position 52 to the end position 53, the water output of the water outlet faucet 1 gradually decreases and the water outlet temperature gradually increases. On the contrary, when the trigger 43 rotates from the end position 53 to the intermediate position 52, the water flow rate flowing from the water inlet pipe 2 to the heating device gradually increases and the water outlet temperature of the water outlet faucet 1 gradually decreases. When the working power of the heating device is variable, when the trigger 43 rotates from the intermediate position 52 to the end position 53 or from the end position 53 to the intermediate position 52, the water outlet faucet 1 provides hot water at a constant temperature. When the trigger 43 rotates from the intermediate position 52 to the starting position 51, the water flow rate flowing from the water inlet pipe 2 to the heating device gradually decreases. Whether the working power of the heating device is constant or variable, when the trigger 43 rotates from the starting position 51 through the intermediate position 52 to the end position 53, or from the end position 53 to the intermediate position 52 and then to the starting position 51, when passing through the intermediate position 52, the water flow rate flowing from the water inlet pipe 2 to the heating device is relatively the largest, which can effectively carry out the heat surplus of the heating device, reduce the influence of the heat inertia of the heating device on the user, and extend the service life of the heating device.
[0036] The water volume adjustment method of the flow regulating valve 4 can be realized by changing the ceramic sheet structure for controlling the water flow rate inside the valve core, which belongs to the prior art and will not be elaborated here.
[0037] The heating device can adopt various methods. For example, there is a water storage cavity, and a heating element is arranged in the water storage cavity. Of course, the heating device preferably adopts a cast aluminum heating element 6, and the cast aluminum heating element 6 is the prior art and will not be elaborated here.
[0038] Through the cooperation of the flow regulating valve 4, the micro switch 3 and the cast aluminum heating element 6, the instant water faucet realizes the dual adjustment of water volume and water temperature.
[0039] The above is only a preferred embodiment of the present utility model and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.
Claims
1. A water temperature regulating mechanism for an instant hot water faucet, comprising a water inlet pipe, a heating device, a microswitch, and a flow regulating valve. The water inlet pipe is communicated with the heating device. The microswitch is arranged on the power connection line of the heating device. The flow regulating valve is arranged on the water inlet pipe and is used for regulating the water flow rate flowing from the water inlet pipe to the heating device, and is characterized in that: The flow regulating valve includes a rotating shaft, a triggering member is provided on the rotating shaft, the triggering member rotates together with the rotating shaft, and the microswitch is arranged on the rotation trajectory of the triggering member; The rotation trajectory of the triggering member includes a starting position and an ending position, the triggering member rotates between the starting position and the ending position, and the microswitch is arranged between the starting position and the ending position.
2. The water temperature adjustment mechanism of the instant hot water faucet according to claim 1, characterized in that: There is an intermediate position between the starting position and the ending position, the microswitch is arranged between the intermediate position and the ending position, and the microswitch is adjacent to the intermediate position.
3. The water temperature regulating mechanism of the instant hot water faucet according to claim 2, characterized in that: When the triggering member is located at the starting position, one end of the triggering member is located at the starting position, and the other end of the triggering member is located between the starting position and the intermediate position.
4. The water temperature regulating mechanism of the instant hot water faucet according to claim 3, characterized in that: The arc length of the triggering member is greater than or equal to the arc length from the intermediate position to the ending position.
5. The water temperature regulating mechanism of the instant hot water faucet according to claim 3, characterized in that: The arc length of the triggering member is less than the arc length from the starting position to the intermediate position.
6. The water temperature adjusting mechanism of the instant hot water faucet according to claim 1, characterized in that: A limiting block is also arranged on the rotation trajectory of the triggering member. When the triggering member is located at the ending position, the triggering member abuts against the limiting block.
7. The water temperature regulating mechanism of the instant hot water faucet according to claim 1, characterized in that: A guiding inclined surface is provided at one end of the triggering member away from the starting position, and the arc length from the guiding inclined surface to the starting position gradually decreases from top to bottom.
8. The water temperature regulating mechanism of the instant hot water faucet according to claim 1, characterized in that: When the triggering member rotates from the starting position to the intermediate position, the water flow rate from the water inlet pipe to the heating device gradually increases. When the triggering member rotates from the intermediate position to the ending position, the water flow rate from the water inlet pipe to the heating device gradually decreases.
9. The water temperature adjusting mechanism of the instant hot water faucet according to claim 8, characterized in that: When the triggering member rotates from the ending position to the intermediate position, the water flow rate from the water inlet pipe to the heating device gradually increases. When the triggering member rotates from the intermediate position to the starting position, the water flow rate from the water inlet pipe to the heating device gradually decreases.
10. The water temperature regulating mechanism of the instant hot water faucet according to claim 1, characterized in that: The heating device is a cast aluminum heating body.