Oscillating bar type time-delay faucet

Abstract

A swing rod type time-delay faucet comprises a faucet shell, a mixing valve element, a push rod, a swing rod mechanism, a damper, a reset assembly, a handle and the like, the push rod is arranged on the faucet shell in an up-down moving mode, and a swing rod of the swing rod mechanism turns over around the middle portion. The delay closing function and the cold and hot water mixing adjusting function are successfully integrated, a user can adjust the cold and hot water mixing proportion by rotating the handle leftwards and rightwards in the lifting state, the requirement for different water temperatures is met, water can be discharged by pressing the handle downwards, and the reset assembly and the damper are used for achieving the synergistic effect. After the handle is released, the delayed closing function of the mixed water outlet is achieved, frequent replacement like a traditional faucet is not needed, and the faucet is suitable for various use scenes. Due to the fact that the handle is in linkage with the valve block module and the push rod, operation such as water temperature adjustment, water outlet control and delayed closing triggering can be completed only through one handle, the operation difficulty of a user is lowered, and using convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of faucets, and in particular to a swing-rod type time-delay faucet. Background Art

[0002] In modern life, faucets are the core control devices for daily water use. The quality of their design and functions is directly related to the user experience. At present, there are a wide variety of faucet products on the market, but a deeper exploration will reveal that in actual use, there are still many problems that need to be solved.

[0003] In terms of closing methods, the functions of some faucets are relatively simple. For example, the common push-to-close faucets generally use a mechanical time-delay valve core, which has the characteristics of delayed self-closing and can effectively save water. Most of the mechanical time-delay self-closing faucets currently used use water or gas as the damping medium, and use fixed grooves or small holes to form a channel connected to the delay storage chamber. By axially moving the valve stem and driving the axial movement of the piston, the fluid in the delay storage chamber is quickly discharged. When the pressing effect on the valve stem disappears, under the action of the spring and the water sucked into the delay storage chamber through the channel, the valve stem slowly moves axially and resets to close the valve port.

[0004] For example, the Chinese utility model patent "Multifunctional Delay Valve Core" with patent number 201922044045.X (authorization announcement number CN211288855U), the Chinese utility model patent "Push-type Delay Valve Core" with patent number ZL202122637589.4 (authorization announcement number CN217634094U), the Chinese utility model patent "A Tilted Press-type Delay Faucet" with patent number ZL201721882692.2, and the Chinese utility model patent "Button-type Basin Delay Faucet" with patent number ZL200520003164.6 all disclose this mechanical delayed self-closing faucet. However, the faucet with this time-delay valve core has a single function and can only be used as a time-delay faucet. However, in actual application, it is sometimes necessary to use it as a conventional mixing faucet, which makes the wash basin installed with the time-delay faucet unable to meet the demand. The time-delay faucet needs to be replaced with a conventional faucet, which is inconvenient and costly to replace.

[0005] To sum up, the existing faucet technology has obvious shortcomings. Therefore, how to provide a new type of faucet that not only has a delayed closing function, but also has the conventional hot and cold water mixing function to meet users' needs for water temperature regulation, water saving, and convenient operation in different scenarios, while optimizing the closing mechanism to avoid the water hammer effect, achieve accurate, smooth and slow closing, and improve the overall performance and user experience of the faucet. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a swing rod type delayed faucet with novel structure and convenient operation, which not only has a delayed closing function, but also takes into account the conventional cold and hot water mixing function in view of the above technical status quo.

[0007] The technical solution adopted by the present invention to solve the above technical problems is as follows: The swing rod type delayed faucet includes

[0008] a faucet housing, on which a cold water inlet, a hot water inlet and a mixed water outlet are provided;

[0009] a mixing valve core, which is built in the faucet housing and has a valve plate module capable of adjusting the water temperature;

[0010] a push rod, which is arranged on the faucet housing so as to move up and down;

[0011] a swing rod mechanism, including a swing rod that rotates around the middle to realize the up and down swing of both ends. The first end of the swing rod is connected to the lower end of the push rod, and the second end is connected with a damper and a reset component;

[0012] a handle, which is linked and connected with the upper end of the push rod and the valve plate module; wherein:

[0013] the left and right rotation of the handle can drive the valve plate module to adjust the mixing ratio of cold and hot water coming in from the cold water inlet and the hot water inlet; the downward pressing action of the handle directly drives the valve plate module to open and conduct the water outlet mode of the mixed water outlet. The downward pressing action of the handle can also push the push rod to move downward, so that the first end of the swing rod moves downward and the second end moves upward to trigger the reset spring and the damper;

[0014] the reset component and the damper can work together. After the handle is released, the reset component drives the second end of the swing rod to reset downward, and the damper forms an upward resistance to the second end of the swing rod to delay the reset speed of the swing rod, thereby delaying the upward movement of the push rod and the reset of the handle, and realizing the delayed closing function of the mixed water outlet.

[0015] In order to optimize the overall layout and flow channel structure of the faucet, and ensure that the push rod can stably move up and down, and improve the practicability and stability of the faucet, preferably, a water outlet nozzle extending horizontally and conducting the mixed water outlet is formed on the side of the faucet housing. A valve core cavity is formed on the faucet housing with an opening facing upward for installing the mixing valve core. Both the cold water inlet and the hot water inlet penetrate the bottom of the valve core cavity. The inlet end of the mixed water outlet is also opened at the bottom of the valve core cavity. A guiding hole extending up and down for the push rod to move up and down is also formed on the faucet housing.

[0016] In order to better install the reset component and the damper at the bottom of the faucet housing, and also enable the swing rod to have a better hinged manner and position design, which is conducive to triggering the delay mechanism. Preferably, an installation bracket is further provided at the bottom of the faucet housing. The reset component and the damper are arranged at intervals up and down within the installation bracket. The swing rod is hinged to the installation bracket. The second end of the swing rod extends between the reset component and the damper to facilitate triggering the reset component and the damper simultaneously. A first reset spring is further provided between the faucet housing and the push rod to force the push rod to move downward to maintain contact with the second end of the swing rod. The first reset spring ensures contact between the push rod and the swing rod, ensures the reliable operation of the delay function, and can further increase the upward resistance to the second end of the swing rod.

[0017] In order to optimize the overall structure of the installation bracket, so that it can better provide a reasonable installation position for the reset component, the damper and the swing rod respectively, and ensure the stable and reliable linkage of the reset component, the damper and the swing rod. Preferably, the installation bracket is detachably fixed to the faucet housing through fasteners. The installation bracket is also formed with a first installation hole and a second installation hole that are vertically corresponding and communicate with each other. The reset component is built in the first installation hole, the damper is built in the second installation hole. A hinged portion for the swing rod to be hinged and flipped is further provided on the side of the installation bracket. A first hinged hole extending horizontally is also opened on the hinged portion. A second hinged hole adapted to the first hinged hole is opened at the middle portion of the swing rod.

[0018] In order to endow the faucet with a function of adjusting the delay closing duration to meet different delay requirements of users. Preferably, an adjustable head that can be adjusted up and down is threadedly connected to the bottom of the second installation hole. The top of the adjustable head abuts against the bottom of the damper. By screwing the adjustable head, the compression amount of the damper is changed to adjust the delay closing duration.

[0019] In order to optimize the structure of the reset component and ensure the stable and reliable delay reset function. Preferably, the reset component includes a second reset spring and a push head. One end of the push head is formed with a plugging portion that can be inserted into the reset spring, and the other end is provided with a spherical trigger surface that contacts the second end of the swing rod. The second reset spring provides the reset power. The design of the plugging portion and the spherical trigger surface of the push head makes the connection between the reset component and the swing rod firm and the contact good, ensuring the normal operation of the delay closing function.

[0020] In order to optimize the structure of the mixing valve core and achieve precise mixing and adjustment of cold and hot water. Preferably, the mixing valve core further includes a valve housing. The valve plate module is arranged within the valve housing. The bottom of the valve housing is penetrated with a cold water through hole corresponding to and communicating with the cold water inlet, a hot water through hole corresponding to and communicating with the hot water inlet, and a mixed water through hole corresponding to and communicating with the mixed water outlet.

[0021] The valve plate module includes a valve stem, a rotor, a dial, a movable valve plate, and a stationary valve plate arranged in sequence from top to bottom. The stationary valve plate is fixed to the bottom of the inner cavity of the valve housing. The movable valve plate is arranged above the stationary valve plate and can rotate and slide relative to the stationary valve plate. The handle is drivingly connected to the valve stem to control the movement of the valve stem. The valve stem is hinged to the rotor and can swing reciprocally to drive the dial to move. The dial is constrained at the bottom of the rotor and can rotate with the rotor and can slide relative to the rotor. The movable valve plate is fixed to the bottom surface of the dial. Each component of the valve plate module works together to precisely control the cold and hot water mixing ratio through the rotation and sliding of the movable valve plate relative to the stationary valve plate, meeting the different water temperature requirements of users.

[0022] In order to enable the movable valve plate to have different water flow conduction conditions in different states when sliding to different positions, so that the faucet can better achieve closing, mixing water to adjust the water temperature, and delayed closing of water at a specific position. Preferably, the stationary valve plate is provided with a cold water inlet hole corresponding to and communicating with the cold water through hole, a hot water inlet hole corresponding to and communicating with the hot water through hole, and a mixed water outlet hole corresponding to and communicating with the mixed water through hole. The movable valve plate is also provided with a mixing chamber, and the mixing chamber is communicated with a first mixing water port and a second mixing water port;

[0023] When the movable valve plate slides and switches to the first state, the first mixing water port, the second mixing water port, the cold water inlet hole, and the hot water inlet hole are all in a misaligned state. At this time, the mixing valve core is in the state of closing the water outlet.

[0024] When the movable valve plate slides and switches to the second state, the second mixing water port is in a misaligned state with the cold water inlet hole and the hot water inlet hole. The first mixing water port can communicate with the mixed water outlet hole, and the rotation of the movable valve plate can make the first mixing water port rotate to cover the cold water inlet hole and the hot water inlet hole to adjust the cold and hot water mixing ratio flowing into the mixing chamber;

[0025] When the movable valve plate slides and switches to the third state, the first mixing water port communicates with the mixed water outlet hole, and the second mixing water port can communicate with the cold water inlet hole.

[0026] In order to enable the mixing valve core to be better installed on the faucet housing, preferably, a fixing device for restricting the valve core from disengaging upward from the valve core cavity is further provided between the valve housing and the faucet housing. An annular step surface is formed on the outer wall of the valve housing. The fixing device includes a matching inner sleeve and outer sleeve. The inner sleeve is fixed to the inner wall of the valve core cavity, and the outer sleeve is threadedly connected to the inner sleeve and can abut against the annular step surface from top to bottom.

[0027] In order to better fix the inner screw sleeve on the inner wall of the valve core cavity, preferably, convex ribs extending up and down are formed on the inner wall of the valve core cavity, and grooves adapted to the convex ribs are formed on the outer peripheral wall of the inner screw sleeve. The rotation of the inner screw sleeve relative to the faucet housing is restricted by the mutual limitation of the convex ribs and the grooves, and a snap ring is also provided on the inner wall of the valve core cavity to prevent the inner screw sleeve from disengaging upward.

[0028] Compared with the prior art, the advantages of the present invention are as follows: By placing the mixing valve core inside the faucet housing and setting up a push rod, a swing rod mechanism, a damper and a reset component that are interconnected, the functions of delayed closing and cold and hot water mixing adjustment are successfully integrated into one. When the handle is in the lifted state, the user can rotate it left and right to adjust the mixing ratio of cold and hot water to meet the demand for different water temperatures, and can also achieve water outlet by pressing down the handle. By the synergistic effect of the reset component and the damper, the delayed closing function of the mixing water outlet is realized after the handle is released, without the need to replace frequently like traditional faucets, and it is suitable for a variety of usage scenarios. Since the handle here is linked with the valve disc module and the push rod, only one handle is needed to complete operations such as water temperature adjustment, water outlet control and triggering delayed closing, and the operation method is simple and intuitive, reducing the operation difficulty of the user and improving the convenience of use. The swing rod is driven by the reset component to reset, and the damper provides resistance to delay the reset speed, thereby realizing the slow closing of the mixing water outlet, avoiding the water hammer effect, making the closing process smoother and more accurate, reducing the impact on the pipeline system, prolonging the service life of the faucet and related pipelines, and at the same time enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural schematic diagram of this embodiment;

[0030] Figure 2 is an exploded state structural schematic diagram of this embodiment;

[0031] Figure 3 is a three-dimensional structural schematic diagram of the faucet housing in this embodiment;

[0032] Figure 4 is an exploded state structural schematic diagram of the mixing valve core in this embodiment;

[0033] Figure 5 is a three-dimensional structural schematic diagram of the movable valve disc in this embodiment;

[0034] Figure 6 is a cross-sectional structural schematic diagram of this embodiment (the movable valve disc slides to the first state, and the mixing valve core is in the closed state);

[0035] Figure 7 is a cross-sectional structural schematic diagram of this embodiment (the movable valve disc slides to the second state, and the mixing valve core is in the state of normal mixed water outlet and adjustable water temperature);

[0036] Figure 8 Cross-sectional structure schematic diagram of this embodiment (the moving valve plate slides to the third state, and the delayed closing of the faucet is in the triggered state);

[0037] Figure 9 Schematic diagram of the cooperation between the static valve plate and the moving valve plate in this embodiment ((the moving valve plate slides to the first state, and the mixing valve core is in the closed state));

[0038] Figure 10 Schematic diagram of the cooperation between the static valve plate and the moving valve plate in this embodiment (the moving valve plate slides to the second state, and the mixing valve core is in the state of normal mixed water output and adjustable water temperature);

[0039] Figure 11 Schematic diagram of the cooperation between the static valve plate and the moving valve plate in this embodiment (the moving valve plate slides to the third state, and the delayed closing of the faucet is in the triggered state). Detailed implementation manners

[0040] The present invention will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0041] Figures 1 to 11 The schematic diagram shown is of this embodiment. This embodiment focuses on a swing rod type delayed faucet, aiming to provide a swing rod type delayed faucet with novel structure, convenient operation, which can not only have the function of delayed closing, but also take into account the conventional cold and hot water mixing function, providing a safer and more convenient use experience for users. The component structure, connection method and working principle of this faucet will be elaborated in detail below. This swing rod type delayed faucet mainly includes a faucet housing 1, a mixing valve core 2, a push rod 3, a swing rod mechanism 4, a damper 5, a reset assembly 6 and a handle 7, etc.

[0042] Installation and connection of the faucet housing 1 and its affiliated structures: Refer to Figures 1 to 3 As shown, the faucet housing 1 serves as the main support structure of the entire faucet, and full consideration has been given to the integration and cooperation of each functional component in its design. The cold water inlet 1a, the hot water inlet 1b and the mixed water outlet 1c are carefully arranged on the faucet housing 1, providing channels for the introduction of cold and hot water and the outflow of the mixed water. The water outlet nozzle 1d extending from the side thereof is communicated with the mixed water outlet 1c. This horizontally extending design enables the mixed water to flow out at a suitable angle and direction, facilitating user use.

[0043] At the top of the faucet housing 1, there is a valve core cavity 1e with an upward opening, which is a reserved space specifically for installing the mixing valve core 2. The cold water inlet 1a and the hot water inlet 1b both penetrate through the bottom of the valve core cavity 1e skillfully, ensuring that cold and hot water can directly flow into the mixing valve core 2 for mixing. The inlet end of the mixed water outlet 1c is also opened at the bottom of the valve core cavity 1e, enabling the mixed water to flow out smoothly. In addition, a guiding hole 1f extending vertically is provided on the faucet housing 1, which is used to provide precise guidance for the up and down movement of the push rod 3, ensuring the stability and accuracy of the movement of the push rod 3.

[0044] At the bottom of the faucet housing 1, the mounting bracket 8 is detachably connected through the fastener 8a. This detachable design provides great convenience for subsequent maintenance and component replacement. The first mounting hole 8b and the second mounting hole 8c corresponding up and down are formed on the mounting bracket 8, and the two are mutually penetrated. The first mounting hole 8b is used for installing the reset component 6, and the second mounting hole 8c is used for installing the damper 5. The side part of the mounting bracket 8 is provided with a hinge part 8d, and a horizontally extending first hinge hole 8e is opened on the hinge part 8d. This hole is adapted to the second hinge hole 4a1 in the middle of the swing rod 4a. By inserting a suitable pin shaft, the swing rod 4a is hinged to the mounting bracket 8, enabling the swing rod 4a to swing up and down at both ends flexibly around this hinge point.

[0045] The structure and installation details of the mixing valve core 2: Refer to Figure 2 , Figure 4 and Figure 5 As shown, the mixing valve core 2 is the core component for achieving precise mixing of cold and hot water. It is skillfully placed inside the valve core cavity 1e of the faucet housing 1. The mixing valve core 2 mainly consists of a valve housing 2b and a valve plate module 2a capable of adjusting the water temperature. The valve plate module 2a is arranged inside the valve housing 2b. The cold water through hole 2b1, the hot water through hole 2b2, and the mixed water through hole 2b3 are penetrated through the bottom of the valve housing 2b. They are accurately corresponding and conducting with the cold water inlet 1a, the hot water inlet 1b, and the mixed water outlet 1c on the faucet housing 1 respectively, providing a smooth channel for the flow of cold and hot water.

[0046] The valve plate module 2a is composed of a plurality of components arranged in order from top to bottom, including a valve handle 2a1, a rotor 2a2, a dial 2a3, a movable valve plate 2a4 and a static valve plate 2a5. The static valve plate 2a5 is firmly fixed to the bottom of the inner cavity of the valve housing 2b, while the movable valve plate 2a4 is located above the static valve plate 2a5 and can rotate and slide relative to the static valve plate 2a5. The static valve plate 2a5 is penetrated by a cold water inlet hole 2a51, a hot water inlet hole 2a52 and a mixed water outlet hole 2a53, which respectively correspond to and are connected with the cold water through hole 2b1, the hot water through hole 2b2 and the mixed water through hole 2b3 at the bottom of the valve housing 2b. A mixing chamber 2a41 is provided on the movable valve plate 2a4, and the mixing chamber 2a41 is connected to a first mixing port 2a42 and a second mixing port 2a43. During the movement of the movable valve plate 2a4, the two mixing ports cooperate with corresponding holes on the static valve plate 2a5 to achieve mixing of cold and hot water and flow control.

[0047] In order to ensure that the mixing valve core 2 can be firmly installed in the faucet housing 1, a fixing device 2c is provided between the valve housing 2b and the faucet housing 1. An annular step surface 2b4 is formed on the outer wall of the valve housing 2b, and the fixing device 2c is composed of an inner screw sleeve 2c1 and an outer screw sleeve 2c2 that are adapted to each other. The inner screw sleeve 2c1 is fixed to the inner wall of the valve core cavity 1e. In order to prevent the inner screw sleeve 2c1 from rotating relative to the faucet housing 1, a convex rib 1e1 extending up and down is formed on the inner wall of the valve core cavity 1e, and a groove 2c3 adapted to the convex rib 1e1 is formed on the outer peripheral wall of the inner screw sleeve 2c1. Through the mutual cooperation of the convex rib 1e1 and the groove 2c3, the inner screw sleeve 2c1 is effectively limited. At the same time, a retaining spring 2c4 is also installed on the inner wall of the valve core cavity 1e to prevent the inner screw sleeve 2c1 from detaching upward. The outer threaded sleeve 2c2 is threadedly connected to the inner threaded sleeve 2c1 and can press against the annular step surface 2b4 from top to bottom, thereby firmly fixing the mixing valve core 2 in the faucet housing 1. A decorative cover 2b5 is also specially provided between the faucet housing 1 and the handle 7 to prevent the internal components from being exposed.

[0048] Installation and function of push rod 3 and first return spring 3a: refer to Figure 2 , Figures 6 to 8 As shown, the push rod 3 is installed in the guide hole 1f on the faucet housing 1, and can move up and down under the restriction of the guide hole 1f. A first return spring 3a is arranged between the faucet housing 1 and the push rod 3. The first return spring 3a is always in a certain compression state, and its elastic force forces the push rod 3 to move downward, thereby ensuring that the push rod 3 always maintains close contact with the first end of the swing rod 4a. This design provides a reliable basis for the subsequent linkage action between the push rod 3 and the swing rod 4a. At the same time, the first return spring 3a can also further increase the upward resistance of the second end of the swing rod 4a.

[0049] Installation and coordination of the rocker mechanism 4 and related components: ReferenceFigure 2 , Figures 6 to 8 As shown in Figures 6 to 8 , the core component of the swing rod mechanism 4, the swing rod 4a, is hinged to the first hinge hole 8e of the hinge part 8d of the mounting bracket 8 through its second hinge hole 4a1. Specifically, the connection is achieved by inserting a suitable pin shaft into these two holes. This hinged manner enables the swing rod 4a to flexibly swing up and down at both ends around this hinge point. The first end of the swing rod 4a is connected to the lower end of the push rod 3. When the push rod 3 moves up and down under the action of the handle 7, it will drive the first end of the swing rod 4a to move up and down synchronously, thereby causing the swing rod 4a to flip around the hinge point in the middle.

[0050] The second end of the swing rod 4a is connected to the damper 5 and the reset assembly 6. The reset assembly 6 is installed in the first mounting hole 8b of the mounting bracket 8 and consists of a second reset spring 6a and a push head 6b. One end of the push head 6b is designed with a plugging part 6b2 that can be inserted into the second reset spring 6a, and this design ensures the stable connection between the push head 6b and the second reset spring 6a. The other end of the push head 6b is provided with a spherical trigger surface 6b1 that contacts the second end of the swing rod 4a. The design of the spherical trigger surface 6b1 makes the contact between the push head 6b and the second end of the swing rod 4a more flexible, which can effectively reduce the friction and jamming phenomena during the contact process and ensure the smooth progress of the reset action. The damper 5 is installed in the second mounting hole 8c of the mounting bracket 8, and the second end of the swing rod 4a extends between the reset assembly 6 and the damper 5 to facilitate triggering the reset assembly 6 and the damper 5 simultaneously. The bottom of the second mounting hole 8c is threadedly connected with an adjusting head 9, and the top of the adjusting head 9 abuts against the bottom of the damper 5. By screwing the adjusting head 9, the position of the adjusting head 9 in the second mounting hole 8c can be changed, thereby changing the compression amount of the damper 5. Different compression amounts of the damper 5 result in different resistance magnitudes formed on the second end of the swing rod 4a, and thus the flexible adjustment of the delay closing duration can be achieved.

[0051] The specific working principle of the faucet is as follows:

[0052] The moving valve plate 2a4 can form three working states under the indirect drive of the handle 7

[0053] The first state (closed state): At this time, the handle is in the initial state in the middle position. When the moving valve plate 2a4 slides and switches to the first state, specifically, reference can be made to Figure 6 and Figure 9 As shown, at this time, the first mixing water port 2a42, the second mixing water port 2a43, the cold water inlet hole 2a51, and the hot water inlet hole 2a52 are all in a misaligned state. In this state, cold and hot water cannot enter the mixing cavity 2a41 through the mixing water ports on the moving valve plate 2a4, the mixing valve core 2 is in the closed state, and the faucet does not discharge water.

[0054] Second state (normal mixed water outlet and adjustable water temperature state): When the handle is pulled upward, which can drive the movable valve piece 2a4 to slide and switch to the second state, specifically refer to Figure 7 and Figure 10 As shown, at this time, the second mixing water port 2a43 is in a misaligned state with the cold water inlet hole 2a51 and the hot water inlet hole 2a52, while the first mixing water port 2a42 is communicated with the mixed water outlet hole 2a53. The rotation of the movable valve piece 2a4 can make the first mixing water port 2a42 rotate to cover different areas of the cold water inlet hole 2a51 and the hot water inlet hole 2a52, so as to adjust the cold and hot water mixing ratio flowing into the mixing chamber 2a41. After the cold and hot water are mixed in the mixing chamber 2a41, they flow out of the faucet through the mixed water outlet hole 2a53, the mixed water passing hole 2b3 and the mixed water outlet 1c, realizing the outflow of the mixed water and the adjustment of the water temperature.

[0055] Third state (delayed closing is in the triggered state): When the handle is pulled downward, which can drive the movable valve piece 2a4 to slide and switch to the third state, specifically refer to Figure 8 and Figure 11As shown, at this time, the first water mixing port 2a42 is connected to the mixed water outlet 2a53, and the second water mixing port 2a43 can be connected to the cold water inlet 2a51, and the cold water can enter the mixing chamber 2a41 through the second water mixing port 2a43, and then flow out of the faucet through the first water mixing port 2a42, the mixed water outlet 2a53, the mixed water hole 2b3 and the mixed water outlet 1c, so as to realize the outflow of part of the cold water. In this third state, the handle 7 directly drives the valve plate module 2a to move, so that the movable valve plate 2a4 slides from the first state to the third state, thereby connecting the water outlet mode of the mixed water outlet 1c. On the other hand, the handle 7 pushes the push rod 3 downward, and the push rod 3 drives the first end of the swing rod 4a to move downward. Since the swing rod 4a flips around the hinge point in the middle, the downward movement of the first end of the swing rod 4a will cause its second end to tilt upward. The upward tilt of the second end of the swing rod 4a triggers the compression of the second reset spring 6a of the reset assembly 6, and also triggers the damper 5 to start working. When the user releases the handle 7, the second reset spring 6a of the reset assembly 6 starts to release elastic potential energy, driving the push head 6b to move downward. The spherical trigger surface 6b1 of the push head 6b pushes the second end of the swing rod 4a to reset downward. In this process, the damper 5 forms an upward resistance to the second end of the swing rod 4a, hindering the rapid reset of the second end of the swing rod 4a. Since the reset speed of the second end of the swing rod 4a is limited by the damper 5, the overall reset speed of the swing rod 4a slows down, thereby driving the push rod 3 to rise slowly. The slow rise of the push rod 3 causes the handle 7 to reset slowly, and the movable valve plate 2a4 gradually slides from the third state to the first state, and finally closes the mixed water outlet 1c, realizing the delayed closing function of the mixed water outlet 1c. The compression amount of the damper 5 can also be changed by adjusting the adjusting head 9, and the resistance of the damper 5 to the second end of the swing rod 4a can be adjusted, so as to flexibly adjust the duration of the delayed closing. It should be noted here that a driving portion 7 a is provided at the bottom of the handle, and the driving portion 7 a on the handle 7 can smoothly push the push rod 3 downward only when it is rotated to align with the top of the push rod 3 .

[0056] To sum up, this swing-lever delayed faucet realizes the functions of mixing cold and hot water to adjust water temperature and delayed closing through the reasonable structural design of each component, precise connection method and ingenious working principle, providing users with a more convenient, comfortable and practical use experience.

[0057] It should be noted that in the description of this embodiment, the orientation or positional relationship indicated by terms such as "front, back", "left, right", "inside, outside", "up, down", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "installed", "connected", and "linked" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A swing lever type time-delay faucet, characterized in that: include A faucet housing (1) is provided with a cold water inlet (1a), a hot water inlet (1b) and a mixing outlet (1c); A mixing valve core (2) is built into the faucet housing (1) and has a valve plate module (2a) capable of adjusting water temperature; A push rod (3) is disposed on the faucet housing (1) so as to move up and down; A swing rod mechanism (4) comprises a swing rod (4a) which is turned around a middle portion to achieve up and down swinging at both ends, wherein a first end of the swing rod (4a) is connected to a lower end of a push rod (3), and a second end is connected to a damper (5) and a reset assembly (6); A handle (7) is linked to the upper end of the push rod (3) and the valve plate module (2a); wherein: The left and right rotation of the handle (7) can drive the valve plate module (2a) to adjust the mixing ratio of the cold and hot water coming in from the cold water inlet (1a) and the hot water inlet (1b); the downward pressing action of the handle (7) directly drives the valve plate module (2a) to open the water outlet mode of the mixing water outlet (1c); the downward pressing action of the handle (7) can also push the push rod (3) to move downward, so that the first end of the swing rod (4a) moves downward and the second end tilts upward to trigger the return spring and the damper (5); The reset assembly (6) and the damper (5) can achieve a synergistic effect. After the handle (7) is released, the reset assembly (6) drives the second end of the swing rod (4a) to reset downward, and the damper (5) forms an upward resistance on the second end of the swing rod (4a) to slow down the reset speed of the swing rod (4a).

2. The swing lever type time-delay faucet according to claim 1, characterized in that: The side of the faucet housing (1) is formed with a water outlet (1d) extending transversely and communicating with the mixing water outlet (1c); the faucet housing (1) is formed with a valve core cavity (1e) opening upward for mounting the mixing valve core (2); the cold water inlet (1a) and the hot water inlet (1b) both penetrate the bottom of the valve core cavity (1e); the water inlet end of the mixing water outlet (1c) is also provided at the bottom of the valve core cavity (1e); the faucet housing (1) is also formed with a guide hole (1f) extending upward and downward for allowing the push rod (3) to move upward and downward.

3. The swing lever type time-delay faucet according to claim 1, characterized in that: A mounting bracket (8) is also provided at the bottom of the faucet housing (1), the reset assembly (6) and the damper (5) are arranged in the mounting bracket (8) in an upper and lower interval shape, the rocker arm (4a) is hinged on the mounting bracket (8), the second end of the rocker arm (4a) extends between the reset assembly (6) and the damper (5) to facilitate the simultaneous triggering of the reset assembly (6) and the damper (5), and a first reset spring (3a) is also provided between the faucet housing (1) and the push rod (3) to force the push rod (3) to move downward to maintain contact with the second end of the rocker arm (4a).

4. The swing lever type time-delay faucet according to claim 3, characterized in that: The mounting bracket (8) is detachably fixed to the faucet housing (1) by means of a fastener (8a); a first mounting hole (8b) and a second mounting hole (8c) corresponding to each other and interpenetrating from top to bottom are formed on the mounting bracket (8); the reset assembly (6) is built into the first mounting hole (8b); the damper (5) is built into the second mounting hole (8c); a hinge portion (8d) is provided on the side of the mounting bracket (8) for the swing arm (4a) to be hinged and flipped; a first hinge hole (8e) extending laterally is provided on the hinge portion (8d); a second hinge hole (4a1) adapted to the first hinge hole (8e) is provided at the middle of the swing arm (4a).

5. The swing lever type time-delay faucet according to claim 4, characterized in that: The bottom of the second mounting hole (8c) is also threadedly connected with an adjusting head (9) that can be adjusted up and down, and the top of the adjusting head (9) is against the bottom of the damper (5). By screwing the adjusting head (9), the compression amount of the damper (5) is changed to adjust the delay closing time.

6. The swing lever type time-delay faucet according to claim 1, characterized in that: The reset assembly (6) comprises a second reset spring (6a) and a push head (6b), one end of the push head (6b) is formed with an inserting portion (6b2) capable of inserting the reset spring, and the other end is provided with a spherical trigger surface (6b1) in contact with the second end of the rocker (4a).

7. The swing lever type time-delay faucet according to any one of claims 2 to 6, characterized in that: The mixing valve core (2) further comprises a valve housing (2b), the valve plate module (2a) being arranged in the valve housing (2b), and the bottom of the valve housing (2b) is provided with a cold water through hole (2b1) corresponding to the cold water inlet (1a), a hot water through hole (2b2) ​​corresponding to the hot water inlet (1b), and a mixing through hole (2b3) corresponding to the mixing outlet (1c); The valve plate module (2a) comprises a valve handle (2a1), a rotor (2a2), a dial (2a3), a movable valve plate (2a4) and a static valve plate (2a5) which are arranged in sequence from top to bottom. The static valve plate (2a5) is fixed to the bottom of the inner cavity of the valve housing (2b). The movable valve plate (2a4) is arranged above the static valve plate (2a5) and can rotate and slide relative to the static valve plate (2a5). The handle (7) is driven and connected to the valve handle (2a1) to control the movement of the valve handle (2a1). The valve handle (2a1) is hinged to the rotor (2a2) and can swing back and forth to drive the dial (2a3) to move. The dial (2a3) is constrained at the bottom of the rotor (2a2) and can rotate with the rotor (2a2) and can slide relative to the rotor (2a2). The movable valve plate (2a4) is fixed to the bottom surface of the dial (2a3).

8. The swing lever type time-delay faucet according to claim 7, characterized in that: The static valve plate (2a5) is provided with a cold water inlet hole (2a51) corresponding to the cold water through hole (2b1), a hot water inlet hole (2a52) corresponding to the hot water through hole (2b2), and a mixed water outlet hole (2a53) corresponding to the mixed water through hole (2b3); the movable valve plate (2a4) is also provided with a mixing chamber (2a41), and the mixing chamber (2a41) is connected with a first mixing water port (2a42) and a second mixing water port (2a43); When the movable valve plate (2a4) slides and switches to the first state, the first water mixing port (2a42), the second water mixing port (2a43) and the cold water inlet hole (2a51) and the hot water inlet hole (2a52) are all in a dislocated state, and the mixing valve core (2) is in a closed water outlet state; When the movable valve plate (2a4) slides and switches to the second state, the second water mixing port (2a43) is in a misaligned state with the cold water inlet hole (2a51) and the hot water inlet hole (2a52), the first water mixing port (2a42) can be connected to the mixed water outlet hole (2a53), and the rotation of the movable valve plate (2a4) can make the first water mixing port (2a42) rotate to cover the cold water inlet hole (2a51) and the hot water inlet hole (2a52) to adjust the mixing ratio of cold and hot water flowing to the mixing chamber (2a41); When the movable valve plate (2a4) slides and switches to the third state, the first water mixing port (2a42) is connected to the mixed water outlet hole (2a53), and the second water mixing port (2a43) can be connected to the cold water inlet hole (2a51).

9. The swing lever type time-delay faucet according to claim 7, characterized in that: A fixing device (2c) is also provided between the valve housing (2b) and the faucet housing (1) for limiting the valve core from upwardly disengaging from the valve core cavity (1e); an annular step surface (2b4) is formed on the outer wall of the valve housing (2b); the fixing device (2c) comprises an inner screw sleeve (2c1) and an outer screw sleeve (2c2) that are adapted to each other; the inner screw sleeve (2c1) is fixed on the inner wall of the valve core cavity (1e); the outer screw sleeve (2c2) is threadedly connected to the inner screw sleeve (2c1) and can abut against the annular step surface (2b4) from top to bottom.

10. The swing lever type time-delay faucet according to claim 9, characterized in that: A convex rib (1e1) extending upward and downward is formed on the inner wall of the valve core cavity (1e), and a groove (2c3) adapted to the convex rib (1e1) is formed on the outer peripheral wall of the inner screw sleeve (2c1). The inner screw sleeve (2c1) is limited in rotation relative to the faucet housing (1) by the mutual limitation of the convex rib (1e1) and the groove (2c3). A retaining spring (2c4) for preventing the inner screw sleeve (2c1) from detaching upward is also provided on the inner wall of the valve core cavity (1e).

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