Instantaneous tap with anti-scald and anti-freeze function

Abstract

This invention relates to an instant hot water faucet designed to prevent scalding and freezing, comprising a main body, a heating element, a control module, and a movable component. The main body contains a hot water channel connecting a water supply pipe to the faucet's outlet assembly. The hot water channel has a heating chamber with a drain outlet. The heating element heats the water within the heating chamber. The control module is configured to open or close the hot water channel, and the movable component is configured to open or close the drain outlet. When the control module opens the hot water channel, the movable component closes the drain outlet to ensure a sealed hot water channel and normal hot water flow. When the control module closes the hot water channel, the movable component opens the drain outlet to drain water from the heating chamber, promptly removing any residual water and preventing burns caused by the residual heat from the heating element reheating the water after a short interval between openings. Furthermore, in low-temperature environments, it prevents the water from freezing and expanding, which could crack the heating chamber.

Description

Technical Field

[0001] This invention relates to the field of bathroom hardware, and more specifically, to an instant-heating faucet that is resistant to scalding and freezing. Background Technology

[0002] Instantaneous electric faucets, with their advantages of instant hot water supply, easy installation, compact size, and low energy consumption, have been widely used in home kitchens, bathrooms, and public places for temporary hot water supply. However, existing instantaneous electric faucets still have two major safety hazards in actual use, which seriously affect the product's safety, reliability, and user experience.

[0003] Firstly, there is a risk of scalding from the high temperature when the tap is turned on again. Instantaneous electric faucets rely on a built-in heating element to heat the water instantly. When the user turns off the tap, the heating element retains a significant amount of residual heat due to thermal inertia, continuing to heat the remaining water in the heating chamber. This causes the water temperature to rise rapidly to near the boiling point within tens of seconds. When the user turns the tap on again shortly afterward, this hot residual water will be the first to spray out of the outlet, with a temperature far exceeding the user's set temperature. This can easily cause burns, blisters, and other personal injuries, especially for vulnerable groups such as the elderly and children who have slower reaction times, as well as users whose skin sensitivity is reduced after their hands get wet. This issue has become one of the most significant points of user complaint regarding instantaneous electric faucets.

[0004] Secondly, there are risks of freezing and cracking in low-temperature environments, as well as electrical safety risks. Existing instant electric faucets have a closed heating chamber. When the water flow is turned off, the residual hot water inside the heating chamber cannot drain naturally. In low-temperature environments, this residual water will freeze and expand, generating significant internal stress. This stress can easily crack the heating chamber, seals, and related connections, leading to leaks. Further leaks can penetrate the faucet's internal electrical control module, heating element terminals, and other live components, causing short circuits, electrical leaks, and heating element burnout. This not only renders the faucet completely ineffective but can also pose serious personal and property safety hazards such as fires and electric shocks. Summary of the Invention

[0005] The purpose of this invention is to provide an instant-heating faucet with anti-scalding and anti-freezing / cracking functions.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0007] This invention provides an instant hot water faucet that prevents scalding and freezing, comprising: a main body, wherein the main body has a hot water channel, the inlet end of the hot water channel is used to connect to a water supply pipe, the outlet end of the hot water channel is used to connect to the water outlet component of the instant hot water faucet, the hot water channel has a heating chamber, and the heating chamber has a drain outlet. A heating element configured to heat water within the heating chamber; A control module configured to open or close the hot water channel; A movable element configured to open or close the drain outlet; When the control module opens the hot water channel, the movable part closes the drain outlet; When the control module closes the hot water channel, the movable part opens the drain outlet to drain the water from the heating chamber.

[0008] In some embodiments of this application, the control module is drive-connected to the movable component so that the movable component is controlled by the control module.

[0009] In some embodiments of this application, the control module includes a valve core and a handle; The valve core is configured to open or close the hot water passage; The movable component is drivenly connected to the handle, so that both the valve core and the movable component are controlled by the handle; The instant-heating faucet that prevents burns and frostbite also includes an elastic element, and the elastic element is connected to the movable element; When the handle is moved to the position where the valve core opens the hot water passage, the handle forces the movable part to overcome the elastic force of the elastic element and close the drain outlet; When the handle is moved to the position where the valve core closes the hot water passage, the elastic element drives the movable element to open the drain outlet.

[0010] In some embodiments of this application, the movable component is movably disposed on the main body; The handle is provided with a linkage block on the side facing the drain outlet; The linkage block has a driving section and an avoidance section; When the handle is moved to the position where the valve core opens the hot water passage, the drive section abuts against the movable member, so that the movable member compresses the elastic member and closes the drain outlet; When the handle is moved to the position where the valve core closes the hot water channel, the elastic element rebounds and drives the movable element to abut against the clearance section and open the drain outlet.

[0011] In some embodiments of this application, the movable member includes a protrusion, and the protrusion has an arcuate surface; The protrusion abuts against the linkage block via the arc-shaped surface.

[0012] In some embodiments of this application, the handle is rotatably mounted on the main body, and the rotation axis of the handle is parallel to the movement direction of the movable member.

[0013] In some embodiments of this application, the main body is provided with a receiving cavity, and the peripheral sidewall of the receiving cavity is provided with an outlet; The drain outlet is located on the inner end wall of the receiving cavity; The movable component is movably disposed in the receiving cavity, and the movable component is provided with a sealing part; When the sealing part moves between the drain outlet and the outlet, the sealing part blocks the space between the drain outlet and the outlet. When the sealing part moves to the side of the drain outlet facing away from the outlet, the drain outlet and the outlet are connected.

[0014] In some embodiments of this application, in the installed state of the anti-scalding and anti-freezing instant faucet, the receiving cavity extends in the horizontal direction; The outlet is located at the bottom of the peripheral sidewall of the receiving cavity.

[0015] In some embodiments of this application, the receiving cavity includes a communicating outer cavity and an inner cavity; The inner diameter of the outer cavity is larger than the inner diameter of the inner cavity, and a first stepped surface is formed between the outer cavity and the inner cavity; The outlet is located on the peripheral side wall of the inner cavity, and the drain outlet is located on the inner end wall of the inner cavity; The movable component includes an expanded diameter section and a narrow diameter section connected together; The outer diameter of the expanded section is larger than the outer diameter of the narrow section, and a second stepped surface is formed between the expanded section and the narrow section, and the second stepped surface is disposed in the outer cavity; The sealing part is provided in the narrow diameter section and in the inner cavity; The elastic element is sleeved on the expanded diameter section, and both ends of the elastic element are sandwiched between the first step surface and the second step surface.

[0016] In some embodiments of this application, a cold water channel is also provided within the main body; The outlet end of the cold water channel is used to connect to the water outlet component of the anti-scalding and anti-freezing instant hot water tap. The control module is also configured to open or close the cold water channel; When the control module opens the hot water channel and / or the cold water channel, the water is discharged from the instant hot water faucet that is resistant to scalding and freezing. When the control module closes the hot water channel and the cold water channel, the water is turned off from the instant hot water faucet that is resistant to scalding and freezing. In the water-out state, the movable part closes the drain outlet; in the water-off state, the movable part opens the drain outlet.

[0017] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects: In the instant hot water faucet that prevents scalding and freezing in this embodiment of the invention, when the control module opens the hot water channel, the movable part closes the drain outlet to ensure that the hot water channel is sealed and water flows through without any problems of water diversion or pressure loss, thus ensuring that hot water is delivered normally and stably.

[0018] When the control module closes the hot water channel, the movable part opens the drain outlet to promptly drain the residual water inside the heating chamber. This prevents the residual heat from continuing to heat the water inside the heating chamber after the heating element stops, and also prevents the water temperature from rising again due to the residual heat of the heating element if the interval between openings is too short, causing a rapid increase in the temperature of the residual water and the risk of skin burns.

[0019] In low-temperature winter environments, draining the water inside the heating chamber prevents the water from freezing and expanding, which could crack the heating chamber and eliminate electrical faults such as short circuits, leakage, and component burnout. Attached Figure Description

[0020] Various objects, features, and advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein: Figure 1 This is a perspective view of an instant hot water tap designed to prevent burns and frostbite when the hot water and cold water channels are closed, according to an exemplary embodiment.

[0021] Figure 2 yes Figure 1 A schematic diagram of its decomposed structure.

[0022] Figure 3 yes Figure 2 Exploded view of the handle, moving parts, and elastic parts.

[0023] Figure 4 yes Figure 1 Partial sectional perspective view.

[0024] Figure 5 yes Figure 4 An enlarged schematic diagram of region A.

[0025] Figure 6 yes Figure 1 A sectional view.

[0026] Figure 7 yes Figure 6 An enlarged schematic diagram of region B.

[0027] Figure 8 This is a perspective view of an instant hot water tap designed to prevent burns and frostbite when the cold water channel is turned on, according to an exemplary embodiment.

[0028] Figure 9 yes Figure 8 Partial sectional perspective view.

[0029] Figure 10 yes Figure 9 An enlarged schematic diagram of region C.

[0030] Figure 11 yes Figure 8 A sectional view.

[0031] Figure 12 yes Figure 11 An enlarged schematic diagram of region D.

[0032] Figure 13 This is a perspective view of an instant hot water tap designed to prevent scalding and frostbite, according to an exemplary embodiment, when the hot water channel is turned on.

[0033] Figure 14 yes Figure 13 Partial sectional perspective view.

[0034] Figure 15 yes Figure 13 A sectional view.

[0035] The reference numerals in the attached drawings are explained as follows: 1. Main body; 11. Hot water channel; 111. Heating chamber; 1111. Drain outlet; 12. Cold water channel; 13. Receiving cavity; 131. Outer cavity; 1311. Positioning groove; 132. Inner cavity; 1321. Outlet; 1322. Guide groove; 133. First step surface; 2. Heating element; 3. Control module; 31. Valve core; 32. Handle; 321. Linkage block; 3211. Drive section; 3212. Avoidance section; 4. Moving part; 41. Protrusion; 42. Expanding diameter section; 421. Positioning block; 43. Narrow diameter section; 431. Sealing part; 44. Guide post; 45. Second step surface; 5. Water outlet assembly; 51. Water outlet component; 52. Water outlet nozzle; 6. Elastic element; 7. Drain pipe; 8. Valve body. Detailed Implementation

[0036] Although the invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to what is described herein.

[0037] Therefore, a feature pointed out in this specification is used to illustrate one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. While certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of the invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0039] Please see Figures 1 to 7 and combined Figure 11 and Figure 15 The instant hot water faucet provided in one embodiment of the present invention mainly includes a main body 1, a heating element 2, a control module 3, and a moving part 4.

[0040] The main body 1 has a hot water channel 11. The inlet end of the hot water channel 11 is connected to a water supply pipe, and the outlet end of the hot water channel 11 is connected to the water outlet component 5 of an instant hot water faucet that is designed to prevent scalding and freezing. The hot water channel 11 has a heating chamber 111, and the heating chamber 111 has a drain outlet 1111. The heating element 2 is configured to heat the water in the heating chamber 111. The control module 3 is configured to open or close the hot water channel 11, and the movable element 4 is configured to open or close the drain outlet 1111. When the control module 3 opens the hot water channel 11, the movable element 4 closes the drain outlet 1111. When the control module 3 closes the hot water channel 11, the movable element 4 opens the drain outlet 1111 to drain the water from the heating chamber 111.

[0041] When the control module 3 opens the hot water channel 11, the movable part 4 closes the drain outlet 1111 to ensure that the hot water channel 11 is sealed and water flows through without any issues of water diversion or pressure loss, thus ensuring that hot water is delivered normally and stably.

[0042] When the control module 3 closes the hot water channel 11, the movable part 4 opens the drain outlet 1111 to promptly drain the residual water inside the heating chamber 111. This prevents the residual heat of the heating element 2 from continuing to heat the water in the heating chamber 111 after the heating element 2 stops, and also prevents the water temperature from rising again due to the short interval between openings, which could cause a rapid increase in the temperature of the residual water and the risk of skin burns.

[0043] In low-temperature winter environments, by draining the water inside the heating chamber 111, the water inside the heating chamber 111 can be prevented from freezing and expanding, thus avoiding cracking of the heating chamber 111 and preventing electrical faults such as short circuits, leakage, and component burnout.

[0044] Please see Figure 2 and combined Figure 7 , Figure 12 and Figure 15 The main body 1 also includes a cold water channel 12. The inlet of the cold water channel 12 is connected to the water supply pipe, and the outlet of the cold water channel 12 is connected to the water outlet component 5 of the anti-scalding and anti-freezing instant hot water faucet. The control module 3 is also configured to open or close the cold water channel 12. When the control module 3 opens the hot water channel 11 and / or the cold water channel 12, the anti-scalding and anti-freezing instant hot water faucet is in the water-out state. When the control module 3 closes the hot water channel 11 and the cold water channel 12, the anti-scalding and anti-freezing instant hot water faucet is in the water-off state. In the water-out state, the movable part 4 closes the drain outlet 1111; in the water-off state, the movable part 4 opens the drain outlet 1111.

[0045] With the addition of a cold water channel 12, the control module 3 can uniformly manage the opening and closing of the hot water channel 11 and the cold water channel 12, and can adapt to various water output modes such as cold water output alone, hot water output alone, or hot and cold water mixing.

[0046] Regardless of whether the hot water channel 11, the cold water channel 12, or both channels are open, the movable part 4 keeps the drain outlet 1111 closed. This effectively prevents water diversion, pressure loss in the cavity, and leakage during water use, ensuring sufficient water pressure and stable water flow. The drain outlet 1111 is only opened to discharge residual water when the hot water channel 11 and the cold water channel 12 are both closed and the faucet is completely shut off.

[0047] The drain outlet 1111 is located at the bottom of the heating chamber 111. It can use gravity to completely and quickly drain the residual water inside the heating chamber 111, leaving no dead corners with water accumulation.

[0048] Heating element 2 is spiral-shaped, effectively increasing the contact area with the water and extending the heat exchange path, resulting in more uniform and thorough heating of the water, higher heating efficiency, and faster water temperature rise. Heating element 2 can be a copper tube. Copper tubes have excellent thermal conductivity and can quickly transfer heat.

[0049] Please see Figure 2The water outlet assembly 5 includes a water outlet component 51 and a water outlet nozzle 52. One end of the water outlet component 51 is connected to the main body 1, and the water outlet nozzle 52 is connected to the other end of the water outlet component 51. The water outlet component 51 is provided with a mixing chamber. The hot water channel 11 and the cold water channel 12 are both connected to the mixing chamber. The control module 3 adjusts the water temperature and water volume by controlling the opening of the hot water channel 11 and the cold water channel 12, and water is discharged out through the water outlet nozzle 52.

[0050] Hot and cold water are fully mixed in the mixing chamber to avoid localized excessively high or low water temperatures, ensuring a uniform and stable outlet water temperature.

[0051] Please see Figure 4 and combined Figure 6 , Figure 12 and Figure 15 The control module 3 is connected to the movable part 4 so that the movable part 4 is controlled by the control module 3. There is no need to operate the movable part 4 separately, and the user's normal operating habits are not changed. The opening and closing state of the drain outlet 1111 can be automatically switched according to the water supply and water shut-off conditions of the faucet, so as to realize the mechanical linkage between the water supply and the opening and closing of the drain outlet 1111.

[0052] In embodiments where only a hot water channel 11 is provided within the main body 1, the control module 3 can simultaneously close the drain outlet 1111 while opening the hot water channel 11, and simultaneously open the drain outlet 1111 while closing the hot water channel 11. Similarly, in embodiments where a cold water channel 12 is also provided within the main body 1, the control module 3 can simultaneously close the drain outlet 1111 while opening the hot water channel 11 and / or the cold water channel 12, and simultaneously open the drain outlet 1111 while closing both the hot water channel 11 and the cold water channel 12.

[0053] The control module 3 includes a valve core 31 and a handle 32. The valve core 31 is configured to open or close the hot water passage 11. The movable part 4 is drivenly connected to the handle 32, so that both the valve core 31 and the movable part 4 are controlled by the handle 32. The instant hot water faucet, which is designed to prevent scalding and freezing, also includes an elastic element 6, which is connected to the movable part 4. When the handle 32 moves to the position where the valve core 31 opens the hot water passage 11, the handle 32 forces the movable part 4 to overcome the elastic force of the elastic element 6 and close the drain outlet 1111. When the handle 32 moves to the position where the valve core 31 closes the hot water passage 11, the elastic element 6 drives the movable part 4 to open the drain outlet 1111. The elastic element refers to a component that can undergo elastic deformation under the driving force of the handle 32 and can return to its original shape when the driving force of the handle 32 is removed. The elastic element can be made of metal or non-metal, such as leaf springs, coil springs, gas springs, rubber springs, etc. The specific type can be determined according to the actual situation, and this specification does not limit it in this embodiment.

[0054] In embodiments where a cold water channel 12 is also provided within the main body 1, when the handle 32 is moved to the position where the valve core 31 opens the hot water channel 11 and / or the cold water channel 12, the handle 32 forces the movable member 4 to overcome the elastic force of the elastic member 6 and close the drain outlet 1111. When the handle 32 is moved to the position where the valve core 31 closes the hot water channel 11 and the cold water channel 12, the elastic member 6 drives the movable member 4 to open the drain outlet 1111.

[0055] When the handle 32 opens the water passage, it can stably press against the movable part 4 and overcome the elastic force of the elastic part 6 to close the drain outlet 1111. When the handle 32 closes the water passage, the movable part 4 is automatically reset by the elastic rebound of the elastic part 6, so that the drain outlet 1111 can be opened automatically.

[0056] Main references Figures 2 to 6 The movable part 4 is movably mounted on the main body 1. The handle 32 is provided with a linkage block 321 on the side facing the drain outlet 1111. The linkage block 321 has a driving section 3211 and a clearance section 3212. When the handle 32 moves to the position where the valve core 31 opens the hot water channel 11, the driving section 3211 abuts against the movable part 4, so that the movable part 4 compresses the elastic part 6 and closes the drain outlet 1111. When the handle 32 moves to the position where the valve core 31 closes the hot water channel 11, the elastic part 6 rebounds and drives the movable part 4 to abut against the clearance section 3212 and open the drain outlet 1111.

[0057] The elastic element 6 is adapted to the movable movable element 4 so that the elastic element 6 does not bear torque during compression or rebound, thereby improving the service life of the elastic element 6.

[0058] Please refer to Figures 2 to 6 The main body 1 is provided with a receiving cavity 13, and the peripheral side wall of the receiving cavity 13 is provided with an outlet 1321. The drain outlet 1111 is provided on the inner end wall of the receiving cavity 13. The movable part 4 is movably provided in the receiving cavity 13, and the movable part 4 is provided with a sealing part 431. When the sealing part 431 moves between the drain outlet 1111 and the outlet 1321, the sealing part 431 seals the space between the drain outlet 1111 and the outlet 1321. When the sealing part 431 moves to the side of the drain outlet 1111 facing away from the outlet 1321, the drain outlet 1111 and the outlet 1321 are connected.

[0059] The receiving cavity 13 can limit and guide the moving part 4, allowing it to move smoothly and directionally within the cavity 13, effectively preventing movement deviation and jamming. Simultaneously, the receiving cavity 13 forms a closed protective space, blocking the intrusion of external impurities and contaminants, preventing the sealing part 431 from becoming contaminated and affecting its sealing performance. The sealing part 431 can effectively isolate and seal within the range between the drain outlet 1111 and the outlet 1321, reducing assembly precision and alignment requirements, allowing the moving part 4 to have a reasonable margin of error in its travel, resulting in stronger assembly adaptability and a higher operational fault tolerance rate.

[0060] The sealing part 431 is also provided with an annular groove, and a sealing ring is placed in the annular groove. The sealing ring is installed firmly by embedding it in the annular groove, making it difficult for it to fall off. The flexible fit of the sealing ring can greatly improve the sealing effect.

[0061] The handle 32 can be movably mounted on the main body 1, or it can be rotatably mounted on the main body 1. Taking the movable member 4 extending in a straight line as an example, when the handle 32 moves or rotates to the position where the driving section 3211 is directly opposite the drain outlet 1111, the driving section 3211 and the drain outlet 1111 have a first distance. When the handle 32 moves or rotates to the position where the clearance section is directly opposite the drain outlet 1111, the clearance section and the drain outlet 1111 have a second distance. The first distance is less than the second distance. That is to say, when the driving section 3211 abuts against the movable member 4, the first distance between the driving section 3211 and the drain outlet 1111 is less than the second distance between the clearance section 3212 and the drain outlet 1111 when the clearance section 3212 abuts against the movable member 4. It is understandable that when the movable part 4 does not extend in a straight line, for example, when the movable part 4 is arc-shaped, the drive section 3211 may not be in a position directly opposite the drain outlet 1111 when it abuts against the movable part 4, and the avoidance section may not be in a position directly opposite the drain outlet 1111 when it abuts against the movable part 4.

[0062] Of course, in embodiments where a cold water channel 12 is also provided in the main body 1, when the handle 32 moves to the position where the valve core 31 opens the hot water channel 11 and / or the cold water channel 12, the drive section 3211 abuts against the movable member 4, so that the movable member 4 compresses the elastic member 6 and closes the drain outlet 1111. When the handle 32 moves to the position where the valve core 31 closes the hot water channel 11 or the cold water channel 12, the elastic member 6 rebounds and drives the movable member 4 to abut against the clearance section 3212 and open the drain outlet 1111.

[0063] The drive section 3211 is a plane, and the drain outlet 1111 remains closed during the process of the drive section 3211 abutting against the moving part 4. The clearance section 3212 is an inclined plane, and the drain outlet 1111 gradually opens or gradually closes during the process of the clearance section 3212 abutting against the moving part 4.

[0064] When the handle 32 is rotated to adjust the opening of the hot water channel 11 and regulate the flow of hot water, the drive section 3211 can always smoothly press against the movable part 4, keeping the drain outlet 1111 reliably closed throughout the process. The inclined section can smoothly release or gradually increase the pressure stroke on the movable part 4, realizing the gradual opening and closing of the drain outlet 1111, effectively buffering the impact force generated by mechanical hard contact, and making the movement of the movable part 4 smoother.

[0065] Please see Figure 4 When the end of the inclined section away from the flat section abuts against the movable part 4, the instant hot water faucet, designed to prevent scalding and freezing, closes both the hot water channel 11 and the cold water channel 12, thus entering a water-off state. Please refer to [link / reference]. Figure 10 When the end of the inclined section near the flat section abuts against the movable part 4, the anti-scalding and anti-freezing instant hot water faucet opens the cold water channel 12 and is in the hot water state. That is to say, as the position where the inclined section abuts against the flat section moves from the end of the inclined section away from the flat section to the end of the inclined section near the flat section, the drain outlet 1111 is gradually opened, and the drain outlet 1111 remains open when the cold water flow rate is adjusted. Please refer to... Figure 14 The position where the drive section 3211 abuts against the moving part 4 is located at the end of the drive section 3211 away from the inclined section, and the hot water output reaches the maximum.

[0066] Please see Figure 3 and Figure 4 The moving part 4 includes a protrusion 41 with an arc-shaped surface, which abuts against the linkage block 321. The contact of the protrusion 41 reduces the friction area of ​​the parts, reduces wear and jamming caused by long-term reciprocating motion, and improves the smoothness of structural movement.

[0067] The protrusion 41 is strip-shaped, and its length direction intersects the movement trajectory of the handle 32, which increases the lateral contact range and ensures stable engagement with the linkage block 321 throughout the entire process, preventing misalignment and local slippage. When the handle 32 is movably mounted on the main body 1, the movement trajectory of the linkage block 321 is a straight line, and the length direction of the strip is not parallel to this straight line; that is, the length direction of the strip and the straight line can form an acute angle, a right angle, or an obtuse angle. If the length direction of the strip and the straight line are at a right angle, they are perpendicular to each other. When the handle 32 is rotatably mounted on the main body 1, the movement trajectory of the linkage block 321 is an arc, and the length direction of the strip is not perpendicular to the diameter direction of the arc; that is, the length direction of the strip and the diameter direction of the arc coincide or form an acute angle or an obtuse angle. In this embodiment, the length direction of the strip coincides with the diameter direction of the arc.

[0068] In this embodiment, the handle 32 is rotatably mounted on the main body 1, and the axis of rotation of the handle 32 is parallel to the direction of movement of the movable part 4. The rotatable handle 32 eliminates the need for a long linear sliding stroke, significantly saving the limited installation space inside the faucet. Furthermore, the circular rotation trajectory is consistent and regular, reducing the likelihood of misalignment or loosening. The handle 32 can be rotatably mounted to the main body 1 by having a rotating seat formed on the main body, with a rotating pin installed inside the rotating seat. A hinge hole is provided in the center of the handle 32, which is coaxially fitted onto the outside of the rotating pin, allowing the handle to rotate and swing around the rotating pin as its center of rotation.

[0069] In the installed state of the anti-scalding and anti-freezing instant faucet, the receiving cavity 13 extends horizontally, and the outlet 1321 is located at the bottom of the peripheral sidewall of the receiving cavity 13. The outlet 1321 at the bottom can guide water out of the outlet 1321 by gravity, reducing the accumulation of liquid residue in the receiving cavity 13. In this embodiment, the extending direction of the receiving cavity 13 is perpendicular to the extending direction of the main body 1. When the anti-scalding and anti-freezing instant faucet is installed on the countertop, taking the countertop parallel to the ground as an example, the main body 1 is perpendicular to the countertop, and the receiving cavity 13 is parallel to the countertop.

[0070] The instant hot water faucet that prevents burns and frostbite also includes a drain pipe 7, which is inserted into the outlet 1321. Water flowing out through the drain outlet 1111 can be further discharged through the drain pipe 7.

[0071] The inner end wall of the receiving cavity 13 is also provided with a guide groove 1322, and the movable part 4 also includes a guide post 44, which is movably inserted into the guide groove 1322.

[0072] The guide post 44 and the guide groove 1322 work together to precisely guide and radially limit the movement of the moving part 4. The guide post 44 is connected to the end of the narrow diameter section 43 away from the wide diameter section 42.

[0073] Multiple drain outlets 1111 can be provided and arranged circumferentially around the guide groove 1322. Alternatively, there can be only one drain outlet 1111, which is annular and arranged around the guide groove 1322.

[0074] The receiving cavity 13 includes an outer cavity 131 and an inner cavity 132 that are connected. The inner diameter of the outer cavity 131 is larger than the inner diameter of the inner cavity 132, and a first stepped surface 133 is formed between the outer cavity 131 and the inner cavity 132. An outlet 1321 is located on the peripheral sidewall of the inner cavity 132, and a drain outlet 1111 is located on the inner endwall of the inner cavity 132. The movable member 4 includes an expanded diameter section 42 and a narrow diameter section 43 that are connected. The outer diameter of the expanded diameter section 42 is larger than the outer diameter of the narrow diameter section 43, and a second stepped surface 45 is formed between the expanded diameter section 42 and the narrow diameter section 43, and the second stepped surface 45 is located in the outer cavity 131. A sealing part 431 is located in the narrow diameter section 43 and in the inner cavity 132. An elastic member 6 is sleeved on the expanded diameter section 42, and both ends of the elastic member 6 are sandwiched between the first stepped surface 133 and the second stepped surface 45. The elastic member 6 can be a spring.

[0075] The narrow diameter section 43 can axially limit and coaxially position the elastic element 6, ensuring that the elastic element 6 is subjected to uniform force during compression and reset, avoiding skewness and movement, and ensuring stable elastic force output. The first step surface 133 and the second step surface 45 provide the elastic force application surfaces for both ends of the elastic element 6.

[0076] The outer cavity 131 has a positioning groove 1311 on its peripheral sidewall, and the expanded diameter section 42 has a positioning block 421 on its peripheral sidewall. The positioning block 421 is movably disposed in the positioning groove 1311, which can effectively restrict the circumferential rotation of the moving part 4 around its own axis, prevent the moving part 4 from twisting, ensure that the narrow diameter section 43 and the sealing part 431 always maintain coaxial movement with the inner cavity 132, prevent the sealing part 431 from causing local wear due to skewness, and improve the stability of the sealing performance.

[0077] The cooperation between the positioning groove 1311 and the positioning block 421, and the cooperation between the guide groove 1322 and the guide post 44, form a double guide structure at both ends of the moving part 4, which further improves the stability of the movement of the moving part 4 and reduces shaking and offset.

[0078] Two positioning grooves 1311 are symmetrically provided, and two positioning blocks 421 are symmetrically provided. The two positioning blocks 421 are respectively movably provided in the two positioning grooves 1311, which further improves the stability of the movement of the moving part 4.

[0079] Please return Figure 1 and Figure 2 The anti-scalding and anti-freezing instant faucet also includes a valve housing 8, which is sleeved outside the main body 1, and the handle 32 is rotatably connected to the valve housing 8. The valve housing 8 protects the other components of the anti-scalding and anti-freezing instant faucet.

[0080] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A scald and freeze protection instant faucet, characterized in that, include: The main body (1) is provided with a hot water channel (11). The inlet end of the hot water channel (11) is used to connect to the water supply pipe. The outlet end of the hot water channel (11) is used to connect to the water outlet assembly (5) of the instant hot water tap that is resistant to scalding and freezing. The hot water channel (11) is provided with a heating chamber (111) and the heating chamber (111) has a drain outlet (1111). A heating element (2) is configured to heat the water in the heating chamber (111); Control module (3), which is configured to open or close the hot water channel (11); Movable element (4), which is configured to open or close the drain outlet (1111); When the control module (3) opens the hot water channel (11), the movable part (4) closes the drain outlet (1111). When the control module (3) closes the hot water channel (11), the movable part (4) opens the drain outlet (1111) to drain the water in the heating chamber (111).

2. The scald and freeze-burst protection instant faucet of claim 1, wherein, The control module (3) is connected to the movable part (4) so ​​that the movable part (4) is controlled by the control module (3).

3. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 2, characterized in that, The control module (3) includes a valve core (31) and a handle (32); The valve core (31) is configured to open or close the hot water passage (11). The movable part (4) is driven to the handle (32) so that both the valve core (31) and the movable part (4) are controlled by the handle (32). The instant hot water faucet that prevents burns and frostbite also includes an elastic element (6), and the elastic element (6) is connected to the movable element (4). When the handle (32) is moved to the position where the valve core (31) opens the hot water passage (11), the handle (32) forces the movable part (4) to overcome the elastic force of the elastic part (6) and close the drain outlet (1111). When the handle (32) is moved to the position where the valve core (31) closes the hot water channel (11), the elastic element (6) drives the movable element (4) to open the drain outlet (1111).

4. The instant-heating faucet with anti-scalding and anti-freezing properties according to claim 3, characterized in that, The movable component (4) is movably disposed on the main body (1); The handle (32) is provided with a linkage block (321) on the side facing the drain outlet (1111). The linkage block (321) has a driving section (3211) and a avoidance section (3212). When the handle (32) is moved to the position where the valve core (31) opens the hot water passage (11), the drive section (3211) abuts against the movable member (4) so ​​that the movable member (4) compresses the elastic member (6) and closes the drain outlet (1111). When the handle (32) moves to the position where the valve core (31) closes the hot water channel (11), the elastic element (6) rebounds and drives the movable element (4) to abut against the clearance section (3212) and open the drain outlet (1111).

5. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 4, characterized in that, The movable part (4) includes a protrusion (41), and the protrusion (41) has an arcuate surface; The protrusion (41) abuts against the linkage block (321) through the arc-shaped surface.

6. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 4, characterized in that, The handle (32) is rotatably mounted on the main body (1), and the rotation axis of the handle (32) is parallel to the movement direction of the movable part (4).

7. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 4, characterized in that, The main body (1) is provided with a receiving cavity (13), and the peripheral sidewall of the receiving cavity (13) is provided with an outlet (1321). The drain outlet (1111) is located on the inner end wall of the receiving cavity (13); The movable part (4) is movably disposed in the receiving cavity (13), and the movable part (4) is provided with a sealing part (431). When the sealing part (431) moves between the drain outlet (1111) and the outlet (1321), the sealing part (431) blocks the space between the drain outlet (1111) and the outlet (1321); When the sealing part (431) moves to the side of the drain outlet (1111) facing away from the outlet (1321), the drain outlet (1111) and the outlet (1321) are connected.

8. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 7, characterized in that, In the installed state of the anti-scalding and anti-freezing instant faucet, the receiving cavity (13) extends in the horizontal direction; The outlet (1321) is located at the bottom of the peripheral sidewall of the receiving cavity (13).

9. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 7, characterized in that, The receiving cavity (13) includes an outer cavity (131) and an inner cavity (132) that are connected to each other. The inner diameter of the outer cavity (131) is larger than the inner diameter of the inner cavity (132), and a first stepped surface (133) is formed between the outer cavity (131) and the inner cavity (132). The outlet (1321) is located on the peripheral side wall of the inner cavity (132), and the drain (1111) is located on the inner end wall of the inner cavity (132). The movable part (4) includes an expanded diameter section (42) and a narrow diameter section (43) connected to each other. The outer diameter of the expanded diameter section (42) is larger than the outer diameter of the narrow diameter section (43), and a second step surface (45) is formed between the expanded diameter section (42) and the narrow diameter section (43), and the second step surface (45) is provided in the outer cavity (131). The sealing part (431) is provided in the narrow diameter section (43) and in the inner cavity (132). The elastic element (6) is sleeved on the expanded diameter section (42), and the two ends of the elastic element (6) are sandwiched between the first step surface (133) and the second step surface (45).

10. The instant heating faucet with anti-scalding and anti-freezing properties according to claim 1, characterized in that, The main body (1) is also provided with a cold water channel (12). The outlet end of the cold water channel (12) is used to connect to the water outlet component (5) of the instant hot water tap that is resistant to scalding and freezing. The control module (3) is also configured to open or close the cold water channel (12). When the control module (3) opens the hot water channel (11) and / or the cold water channel (12), the water outlet state of the anti-scalding and anti-freezing instant hot water tap is formed; when the control module (3) closes the hot water channel (11) and the cold water channel (12), the water shut-off state of the anti-scalding and anti-freezing instant hot water tap is formed. In the water outlet state, the movable part (4) closes the drain outlet (1111), and in the water shut-off state, the movable part (4) opens the drain outlet (1111).

Images