Swing lever time delay faucet

Abstract

A swing rod type delay faucet, including faucet housing, mixing valve core, push rod, swing rod mechanism, damper, reset assembly and handle, etc., the push rod moves up and down on the faucet housing, the swing rod of the swing rod mechanism turns over around the middle part, through the mutual linkage of the push rod, the swing rod mechanism, the damper and the reset assembly, successfully integrates the delay closing and cold and hot water mixing adjustment functions, the user can adjust the cold and hot water mixing ratio by rotating left and right in the handle raised state, meet the demand for different water temperature, and can also realize water outlet by pressing down the handle, and realize the delay closing function of the mixed water outlet through the synergistic effect of the reset assembly and the damper after the handle is released, without frequent replacement like traditional faucets, adapt to various use scenarios. Since the handle here is linked with the valve piece module and the push rod, only one handle is needed to complete water temperature adjustment, water control and trigger delay closing operation, reducing the operation difficulty of the user and improving the convenience of use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of faucets, in particular to a swing lever type delay faucet. BACKGROUND

[0002] In modern life, as the core control device of daily water use, the design and function of the faucet directly affect the user experience. At present, the faucet products on the market seem to be numerous, but in-depth exploration will find that there are still many problems to be solved in the actual use process.

[0003] In terms of closing mode, the function of some faucets is relatively single. For example, the common press type closing faucet generally adopts a mechanical type delay valve core, which has the characteristics of delay self-closing and can effectively save water. However, the mechanical type delay self-closing faucet currently in use mostly uses water or gas as damping medium, forms a channel communicating with the delay storage cavity by fixed groove or small hole, moves the valve rod axially and drives the piston to move axially, so that the fluid in the delay storage cavity is quickly discharged, and when the pressing action on the valve rod disappears, the valve rod slowly moves axially and resets to close the valve port under the action of the spring and the water absorbed into the delay storage cavity through the channel.

[0004] For example, the Chinese utility model patent "Multifunctional delay valve core" with patent number 201922044045.X (authorized announcement number CN211288855U), the Chinese utility model patent "Press type delay valve core" with patent number ZL202122637589.4 (authorized announcement number CN217634094U), the Chinese utility model patent "Inclined press type delay faucet" with patent number ZL201721882692.2, and the Chinese utility model patent "Key type basin delay faucet" with patent number ZL200520003164.6 all disclose this mechanical type delay self-closing faucet. However, the faucet using this delay valve core has single function and can only be used as a delay faucet, but in actual application, it sometimes needs to be used as a regular mixing faucet, which makes the wash basin installed with the delay faucet unable to meet the demand and requires replacing the delay faucet with a regular faucet, which is inconvenient and high in replacement cost.

[0005] In summary, the existing faucet technology has obvious deficiencies. Therefore, how to provide a new type of faucet that has delay closing function and also has regular cold and hot water mixing function to meet the user's demand for water temperature adjustment, water saving and convenient operation in different scenarios, optimize the closing mechanism to avoid water hammer effect, achieve precise and smooth slow closing, and improve the overall use performance and user experience of the faucet. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a swing lever type delay faucet with novel structure and convenient operation, which can have a delay closing function and also has a normal cold and hot water mixing function.

[0007] The technical solution adopted by the present application to solve the above technical problem is as follows:

[0008] The faucet housing is provided with a cold water inlet, a hot water inlet and a mixed water outlet;

[0009] The mixed valve core is built in the faucet housing and has a valve disc module capable of adjusting water temperature;

[0010] The push rod is movably arranged on the faucet housing;

[0011] The swing lever mechanism includes a swing lever which is turned around the middle part to realize the up and down swing of both ends, the first end of the swing lever is connected with the lower end of the push rod, and the second end is connected with a damper and a reset assembly;

[0012] The handle is connected with the upper end of the push rod and the valve disc module; wherein:

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

[0014] The reset assembly and the damper can realize the synergistic effect, after the handle is released, the reset assembly drives the second end of the swing lever to reset downward, and the damper forms upward resistance to the second end of the swing lever to slow down the reset speed of the swing lever, thereby slowing down the upward movement of the push rod and the reset of the handle, and realizing the delay closing function of the mixed water outlet;

[0015] The upward pulling action of the handle can drive the valve disc module to switch to the normal mixed water outlet state, so that the cold and hot water can flow out through the mixed water outlet after being mixed in the valve disc module, and the left and right rotation of the handle can adjust the mixing ratio of the cold and hot water in this state to realize water temperature adjustment.

[0016] In order to optimize the overall layout of the faucet and the flow channel structure, and to ensure that the push rod can stably realize up and down movement, and to improve the practicability and stability of the faucet, preferably, a water outlet nozzle extending transversely and communicating with the mixed water outlet is formed on the side of the faucet housing, a valve core cavity opening upward for installing the mixed valve core is formed on the faucet housing, the cold water inlet and the hot water inlet both penetrate the bottom of the valve core cavity, the water inlet end of the mixed water outlet is also provided in the bottom of the valve core cavity, and a guide hole extending upward and downward for the up and down movement of the push rod is further formed on the faucet housing.

[0017] In order to better install the reset assembly and the damper in the bottom of the faucet housing, and to have a better hinge mode and position design of the swing rod, which is beneficial to triggering the delay mechanism, preferably, the bottom of the faucet housing is further provided with a mounting bracket, the reset assembly and the damper are arranged in the mounting bracket in an up and down spaced manner, the swing rod is hinged on the mounting bracket, the second end of the swing rod extends between the reset assembly and the damper to facilitate the simultaneous triggering of the reset assembly and the damper, and the first reset spring is further arranged between the faucet housing and the push rod to force the push rod to move downward to keep in contact with the second end of the swing rod, which ensures the contact between the push rod and the swing rod and ensures the reliable operation of the delay function, and further increases the upward resistance of the second end of the swing rod.

[0018] In order to optimize the overall structure of the mounting bracket, so as to better provide a reasonable mounting position for the reset assembly, the damper and the swing rod, and to ensure the stable and reliable linkage of the reset assembly, the damper and the swing rod, preferably, the mounting bracket is detachably fixed on the faucet housing by fasteners, the first mounting hole and the second mounting hole corresponding and communicating with each other are further formed on the mounting bracket, the reset assembly is arranged in the first mounting hole, the damper is arranged in the second mounting hole, and the hinge part for the hinge and overturning of the swing rod is further arranged on the side of the mounting bracket, and the first hinge hole extending transversely is further formed on the hinge part, and the second hinge hole adapted to the first hinge hole is formed on the middle part of the swing rod.

[0019] In order to give the faucet the function of adjusting the length of delay closing to meet the different delay needs of users, preferably, the bottom of the second mounting hole is further threadedly connected with an adjustable head which can be adjusted up and down, the top of the adjustable head abuts against the bottom of the damper, and the length of delay closing is adjusted by rotating the adjustable head to change the compression amount of the damper.

[0020] In order to optimize the structure of the reset assembly, ensure the stable and reliable delay reset function, preferably, the reset assembly comprises a second reset spring and a push head, one end of the push head is formed with an insertion part capable of being inserted into the reset spring, the other end is provided with a spherical trigger surface in contact with the second end of the swing lever, the second reset spring provides reset power, the insertion part and the spherical trigger surface of the push head are designed to make the reset assembly and the swing lever connect stably and contact well, and ensure the normal operation of the delay closing function.

[0021] In order to optimize the structure of the mixed valve core and realize accurate mixing and adjustment of cold and hot water, preferably, the mixed valve core further comprises a valve shell, the valve plate module is arranged in the valve shell, and the bottom of the valve shell is provided with a cold water through hole corresponding to the cold water inlet, a hot water through hole corresponding to the hot water inlet and a mixed water through hole corresponding to the mixed water outlet.

[0022] The valve plate module comprises a handle, a rotor, a dial, a moving valve plate and a static valve plate arranged in sequence from top to bottom, the static valve plate is fixed at the bottom of the inner cavity of the valve shell, the moving valve plate is arranged above the static valve plate and can rotate and slide relative to the static valve plate, the handle is drivenly connected to the valve handle to control the action of the valve handle, the valve handle is hinged to the rotor and can reciprocating swing to drive the dial to move, the dial is constrained at the bottom of the rotor and can rotate with the rotor and slide relative to the rotor, the moving valve plate is fixed at the bottom surface of the dial, and the components of the valve plate module work cooperatively to accurately control the mixing ratio of cold and hot water through the rotation and sliding of the moving valve plate relative to the static valve plate, so as to meet the different needs of users for water temperature.

[0023] In order to make the moving valve plate slide to different positions and have different water flow through conditions in different states, so that the faucet can better realize closing, mixed water outlet adjustment of water temperature and delay closing of water outlet at a specific position, preferably, the static valve plate is provided with a cold water inlet hole corresponding to the cold water through hole, a hot water inlet hole corresponding to the hot water through hole and a mixed water outlet hole corresponding to the mixed water through hole, and the moving valve plate is further provided with a mixing chamber, the mixing chamber is communicated with a first mixed water inlet and a second mixed water inlet.

[0024] In the first state of the moving valve plate sliding switching, the first mixed water inlet, the second mixed water inlet, the cold water inlet hole and the hot water inlet hole are in a misaligned state, and at this time the mixed valve core is in a closed water outlet state.

[0025] In the second state of the moving valve plate sliding switching, the second mixed water inlet and the cold water inlet hole and the hot water inlet hole are in a misaligned state, the first mixed water inlet can be communicated with the mixed water outlet hole, and the rotation of the moving valve plate can make the first mixed water inlet rotate to cover the cold water inlet hole and the hot water inlet hole to adjust the mixing ratio of cold and hot water flowing into the mixing chamber.

[0026] In the third state of the sliding switch of the valve disc, the first mixed water inlet is communicated with the mixed water outlet, and the second mixed water inlet can be communicated with the cold water inlet.

[0027] In order to better install the mixing valve core on the faucet shell, preferably, a fixing device for limiting the upward separation of the mixing valve core from the valve core cavity is further arranged between the valve shell and the faucet shell, an annular stepped surface is formed on the outer wall of the valve shell, and the fixing device comprises a female thread and a male thread which are adapted to each other, the female thread is fixed on the inner wall of the valve core cavity, and the male thread is threadedly connected to the female thread and can abut against the annular stepped surface from top to bottom.

[0028] In order to better fix the female thread on the inner wall of the valve core cavity, preferably, a convex rib extending upward and downward is formed on the inner wall of the valve core cavity, a groove adapted to the convex rib is formed on the outer peripheral wall of the female thread, the rotation of the female thread relative to the faucet shell is limited by the mutual limiting of the convex rib and the groove, and a snap spring for preventing the upward separation of the female thread is further arranged on the inner wall of the valve core cavity.

[0029] Compared with the prior art, the advantages of the present application are that: by embedding the mixing valve core in the faucet shell and by arranging the push rod, swing rod mechanism, damper and reset assembly which are interlinked, the functions of delayed closing and cold and hot water mixing adjustment are successfully integrated, the user can adjust the cold and hot water mixing ratio by rotating the handle left and right in the handle raised state, meet the demand for different water temperature, and realize water outlet by pressing the handle, and by the synergistic effect of the reset assembly and the damper, the delayed closing function of the mixed water outlet is realized after the handle is released, without frequent replacement like traditional faucets, and is suitable for various use scenarios. Since the handle here is linked with the valve disc module and the push rod, only one handle is needed to complete the water temperature adjustment, water control and triggering of the delayed closing operation, the operation mode is simple and intuitive, the operation difficulty of the user is reduced, and the convenience of use is improved. By driving the swing rod to reset by the reset assembly and providing resistance to slow down the reset speed by the damper, the slow closing of the mixed water outlet is realized, the water hammer effect is avoided, the closing process is more stable and accurate, the impact on the pipeline system is reduced, the service life of the faucet and related pipelines is prolonged, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of the faucet shell in this embodiment;

[0031] Figure 2 is a schematic diagram of the structure of the faucet shell in this embodiment;

[0032] Figure 3 is a schematic diagram of the three-dimensional structure of the faucet shell in this embodiment;

[0033] Figure 4It is a structure schematic diagram of the mixed valve core in the embodiment;

[0034] Figure 5 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0035] Figure 6 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0036] Figure 7 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0037] Figure 8 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0038] Figure 9 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0039] Figure 10 It is a structure schematic diagram of the mixed valve core in the embodiment;

[0040] Figure 11 It is a structure schematic diagram of the mixed valve core in the embodiment; DETAILED DESCRIPTION

[0041] The application will be further described in detail below with reference to the accompanying drawings.

[0042] Figures 1-11 The embodiment is shown in the schematic diagram, and the embodiment is developed around a swing lever type delay faucet. The swing lever type delay faucet has novel structure, convenient operation, delay closing function, and conventional cold and hot water mixing function, and provides safer and more convenient use experience for users. The component structure, connection mode and working principle of the faucet are described in detail below. The swing lever type delay faucet mainly includes a faucet housing 1, a mixed valve core 2, a push rod 3, a swing lever mechanism 4, a damper 5, a reset assembly 6, a handle 7 and the like.

[0043] The installation and connection of the faucet housing 1 and the attached structure are described with reference to the accompanying drawings. Figures 1-3As shown, the faucet housing 1 serves as the main body support structure of the entire faucet, and its design fully considers the integration and cooperation of various functional components. The faucet housing 1 is carefully designed with a cold water inlet 1a, a hot water inlet 1b, and a mixed water outlet 1c, providing channels for the introduction of cold and hot water and the outflow of mixed water. The water outlet nozzle 1d extending from the side of the faucet housing 1 is connected to the mixed water outlet 1c. This transverse extension design allows the mixed water to flow out at the appropriate angle and direction, making it convenient for users to use.

[0044] The top of the faucet housing 1 is provided with a valve core cavity 1e opening upward, which is a space specially reserved for the installation of the mixing valve core 2. The cold water inlet 1a and the hot water inlet 1b are both cleverly penetrated through the bottom of the valve core cavity 1e, ensuring that cold and hot water can directly flow into the mixing valve core 2 for mixing. The water inlet end of the mixed water outlet 1c is also provided in the bottom of the valve core cavity 1e, allowing the mixed water to flow out smoothly. In addition, the faucet housing 1 is also provided with an upward and downward extending guide hole 1f, which serves to provide accurate 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.

[0045] At the bottom of the faucet housing 1, the mounting bracket 8 is detachably connected through fasteners 8a. This detachable design provides great convenience for subsequent maintenance and component replacement. The mounting bracket 8 forms a first mounting hole 8b and a second mounting hole 8c corresponding to each other and penetrating each other. The first mounting hole 8b is used to install the reset component 6, and the second mounting hole 8c is used to install the damper 5. The side of the mounting bracket 8 is provided with a hinge part 8d, which has a first hinge hole 8e extending transversely. The hole is matched with 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, allowing the swing rod 4a to flexibly swing up and down at both ends around the hinge point.

[0046] The structure and installation details of the mixing valve core 2 are shown in Figure 2 、 Figure 4 and Figure 5 The mixing valve core 2 is the core component for precise mixing of cold and hot water, which is cleverly built into the valve core cavity 1e of the faucet housing 1. The mixing valve core 2 mainly consists of a valve shell 2b and a valve plate module 2a that can adjust the water temperature. The valve plate module 2a is placed inside the valve shell 2b, and the bottom of the valve shell 2b is provided with a cold water passage hole 2b1, a hot water passage hole 2b2, and a mixed water passage hole 2b3, which are respectively matched with the cold water inlet 1a, the hot water inlet 1b, and the mixed water outlet 1c of the faucet housing 1, providing a smooth channel for the flow of cold and hot water.

[0047] Valve piece module 2a is composed of a plurality of components arranged from top to bottom, including valve handle 2a1, rotor 2a2, dial 2a3, dynamic valve piece 2a4 and static valve piece 2a5. Static valve piece 2a5 is firmly fixed at the bottom of the inner cavity of valve shell 2b, and dynamic valve piece 2a4 is located above static valve piece 2a5 and can rotate and slide relative to static valve piece 2a5. Static valve piece 2a5 is provided with cold water inlet hole 2a51, hot water inlet hole 2a52 and mixed water outlet hole 2a53, which are respectively corresponding to and communicated with cold water through hole 2b1, hot water through hole 2b2 and mixed water through hole 2b3 at the bottom of valve shell 2b. Dynamic valve piece 2a4 is provided with mixing chamber 2a41, and mixing chamber 2a41 is communicated with first mixed water port 2a42 and second mixed water port 2a43. The two mixed water ports cooperate with the corresponding holes on static valve piece 2a5 during the movement of dynamic valve piece 2a4 to realize the mixing and flow control of cold and hot water.

[0048] In order to ensure that the mixing valve core 2 can be stably installed in the faucet shell 1, a fixing device 2c is arranged between the valve shell 2b and the faucet shell 1. An annular stepped surface 2b4 is formed on the outer wall of the valve shell 2b, and the fixing device 2c is composed of an inner sleeve 2c1 and an outer sleeve 2c2 which are matched with each other. The inner sleeve 2c1 is fixed on the inner wall of the valve core cavity 1e, and in order to prevent the inner sleeve 2c1 from rotating relative to the faucet shell 1, an upwardly extending protrusion 1e1 is formed on the inner wall of the valve core cavity 1e, and a groove 2c3 matching the protrusion 1e1 is formed on the outer wall of the inner sleeve 2c1, so that the inner sleeve 2c1 is effectively limited by the cooperation of the protrusion 1e1 and the groove 2c3. At the same time, a circlip 2c4 is also installed on the inner wall of the valve core cavity 1e to prevent the inner sleeve 2c1 from being separated upwardly. The outer sleeve 2c2 is threadedly connected to the inner sleeve 2c1 and can abut against the annular stepped surface 2b4 from top to bottom, so as to firmly fix the mixing valve core 2 in the faucet shell 1. The faucet shell 1 and the handle 7 are also specially provided with a decorative cover 2b5 to prevent the built-in components from being exposed.

[0049] The installation and action of push rod 3 and first return spring 3a: as shown in Figure 2 、 Figures 6-8 , the push rod 3 is installed in the guide hole 1f on the faucet shell 1 and can move up and down under the limitation of the guide hole 1f. The first return spring 3a is arranged between the faucet shell 1 and the push rod 3, and the first return spring 3a is always in a certain compression state, and the elastic force of the first return spring 3a forces the push rod 3 to move downward, so as to ensure 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 further increase the upward resistance of the second end of the swing rod 4a.

[0050] The installation and cooperation of swing rod mechanism 4 and related components:Figure 2 , Figures 6-8 As shown, the core component of the rocker arm mechanism 4, the rocker arm 4a, is hinged to the first hinge hole 8e of the hinge portion 8d of the mounting bracket 8 through its second hinge hole 4a1. Specifically, the connection is achieved by inserting suitable pins into these two holes. This hinge method allows the rocker arm 4a to swing flexibly up and down around the hinge point. The first end of the rocker arm 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 rocker arm 4a to move up and down synchronously, thereby causing the rocker arm 4a to rotate around the central hinge point.

[0051] The second end of the rocker arm 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 it consists of a second reset spring 6a and a pusher head 6b. One end of the pusher head 6b is designed with a plug portion 6b2 that can be inserted into the second reset spring 6a. This design ensures a stable connection between the pusher head 6b and the second reset spring 6a. The other end of the pusher head 6b is provided with a spherical trigger surface 6b1 that contacts the second end of the rocker arm 4a. The design of the spherical trigger surface 6b1 makes the contact between the pusher head 6b and the second end of the rocker arm 4a more flexible, effectively reducing friction and jamming during the contact process, and ensuring smooth reset action. The damper 5 is installed in the second mounting hole 8c of the mounting bracket 8, and the second end of the rocker arm 4a extends between the reset assembly 6 and the damper 5 to facilitate simultaneous triggering of the reset assembly 6 and the damper 5. An adjusting head 9 is threaded to the bottom of the second mounting hole 8c, and the top of the adjusting head 9 abuts against the bottom of the damper 5. By turning the adjusting head 9, its position in the second mounting hole 8c can be changed, thereby altering the compression of the damper 5. Different compressions of the damper 5 result in different resistances exerted on the second end of the rocker arm 4a, thus enabling flexible adjustment of the delayed closing time.

[0052] The specific working principle of a faucet is as follows:

[0053] The movable valve plate 2a4 can form three working states under the indirect drive of the handle 7.

[0054] First state (closed state): The handle is in the initial middle position. When the moving valve plate 2a4 slides to switch to the first state, please refer to the following for details. Figure 6 and Figure 9 As shown, at this time, the first mixing port 2a42, the second mixing port 2a43, the cold water inlet 2a51, and the hot water inlet 2a52 are all misaligned. In this state, the cold and hot water cannot enter the mixing chamber 2a41 through the mixing port on the moving valve plate 2a4, the mixing valve core 2 is closed, and the faucet does not produce water.

[0055] Second state (normal mixed water output with adjustable water temperature): When the handle is moved upwards, the valve plate 2a4 will slide to switch to the second state. For details, please refer to [link / reference needed]. Figure 7 and Figure 10 As shown, at this time, the second mixing port 2a43 is misaligned with the cold water inlet 2a51 and the hot water inlet 2a52, while the first mixing port 2a42 is connected to the mixing outlet 2a53. The rotation of the moving valve plate 2a4 allows the first mixing port 2a42 to rotate and cover different areas of the cold water inlet 2a51 and the hot water inlet 2a52, thereby adjusting the mixing ratio of hot and cold water flowing into the mixing chamber 2a41. After the hot and cold water are mixed in the mixing chamber 2a41, they flow out of the faucet through the mixing outlet 2a53, the mixing through-hole 2b3, and the mixing outlet 1c, thus achieving the flow of mixed water and the adjustment of water temperature.

[0056] Third state (delayed closure in triggered state): When the handle is moved downwards, the valve plate 2a4 will slide to switch to the third state. For details, please refer to [link / reference needed]. Figure 8 and Figure 11As shown, at this time, the first mixing water inlet 2a42 is in communication with the mixed water outlet hole 2a53, and the second mixing water inlet 2a43 can be in communication with the cold water inlet hole 2a51, so that cold water can enter the mixing cavity 2a41 through the second mixing water inlet 2a43, and then flow out of the faucet through the first mixing water inlet 2a42, the mixed water outlet hole 2a53, the mixed water outlet hole 2b3 and the mixed water outlet 1c, thereby realizing the flow of part of the cold water. In this third state, the handle 7 directly drives the valve plate module 2a to act, so that the moving valve plate 2a4 is switched from the first state to the third state, thereby guiding the water mode of the mixed water outlet 1c. On the other hand, the handle 7 is pressed to drive the push rod 3 to move downward, and the push rod 3 drives the first end of the swing rod 4a to move downward. Since the swing rod 4a is flipped around the hinge point in the middle, the downward movement of the first end of the swing rod 4a will cause the second end of the swing rod 4a to be raised upward. The upward movement of the second end of the swing rod 4a will trigger the compression of the second reset spring 6a of the reset assembly 6, and will also trigger 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 the 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 slowly rise. The slow rise of the push rod 3 causes the handle 7 to slowly reset, and the moving valve plate 2a4 gradually slides from the third state to the first state, and finally closes the mixed water outlet 1c, thereby realizing the delay closing function of the mixed water outlet 1c. The compression amount of the damper 5 can be adjusted by adjusting the adjusting head 9, so that the resistance of the damper 5 to the second end of the swing rod 4a can be adjusted, thereby flexibly adjusting the length of the delay closing. It should be noted that the bottom of the handle is provided with a driving portion 7a, and the driving portion 7a on the handle 7 can smoothly push the push rod 3 downward only when it is rotated to be aligned with the top of the push rod 3.

[0057] In summary, the present swing rod type delay faucet realizes the functions of cold and hot water mixing, temperature adjustment and delay closing through reasonable structural design of each component, accurate connection mode and ingenious working principle, thereby providing users with more convenient, comfortable and practical use experience.

[0058] It should be noted that in the description of the present embodiment, the terms "front, back, left, right, inner, outer, upper, lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A swing lever time delay faucet, characterized by: Comprising a faucet housing (1) provided with a cold water inlet (1a), a hot water inlet (1b) and a mixed water outlet (1c); a mixing valve core (2) built in the faucet housing (1) and provided with a valve disc module (2a) capable of adjusting water temperature; a push rod (3) movably arranged on the faucet housing (1); a swing rod mechanism (4) comprising a swing rod (4a) which is turned over at the middle part to realize the swing of both ends up and down, the first end of the swing rod (4a) is connected with the lower end of the push rod (3), and the second end is connected with a damper (5) and a reset assembly (6); a handle (7) connected with the upper end of the push rod (3) and the valve disc module (2a); wherein: the left and right rotation of the handle (7) can drive the valve disc module (2a) to adjust the mixing ratio of cold and hot water coming from the cold water inlet (1a) and the hot water inlet (1b); the downward pressing action of the handle (7) can directly drive the valve disc module (2a) to open the water outlet mode of the mixed water outlet (1c), and 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 is upturned to trigger the reset assembly (6) and the damper (5); the reset assembly (6) and the damper (5) can realize the 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 upward resistance to the second end of the swing rod (4a) to slow down the reset speed of the swing rod (4a); the upward pulling action of the handle (7) can drive the valve disc module (2a) to switch to the conventional mixed water outlet state, so that cold and hot water can flow out through the mixed water outlet (1c) after being mixed in the valve disc module (2a), and the left and right rotation of the handle (7) can adjust the mixing ratio of cold and hot water in this state to realize water temperature adjustment.

2. The swing rod time delay faucet according to claim 1, wherein: the side of the faucet housing (1) is formed with a water outlet nozzle (1d) extending transversely and leading to the mixed water outlet (1c), the faucet housing (1) is formed with a valve core cavity (1e) with an upward opening for installing the mixed 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 mixed water outlet (1c) is also provided in the bottom of the valve core cavity (1e), and the faucet housing (1) is further formed with a guide hole (1f) extending upward and downward for the upward and downward movement of the push rod (3).

3. The swing rod time delay faucet of claim 1, wherein: the bottom of the faucet housing (1) is further provided with a mounting bracket (8), the reset assembly (6) and the damper (5) are arranged in the mounting bracket (8) in an up and down spaced manner, the swing rod (4a) is hinged on the mounting bracket (8), the second end of the swing rod (4a) extends between the reset assembly (6) and the damper (5) to facilitate the triggering of the reset assembly (6) and the damper (5) at the same time, and the first reset spring (3a) is further arranged between the faucet housing (1) and the push rod (3) to force the push rod (3) to move downward to keep in contact with the second end of the swing rod (4a).

4. The swing rod time delay faucet of claim 3 wherein: The mounting bracket (8) is detachably fixed to the faucet shell (1) by fasteners (8a), and first and second mounting holes (8b, 8c) are formed in the mounting bracket (8) and correspond to each other and are mutually penetrated, the reset assembly (6) is built in the first mounting hole (8b), the damper (5) is built in the second mounting hole (8c), and a hinged part (8d) for hinged turning of the swing lever (4a) is further arranged on the side of the mounting bracket (8), and a first hinged hole (8e) extending horizontally is further arranged on the hinged part (8d), and a second hinged hole (4a1) matching the first hinged hole (8e) is arranged at the middle part of the swing lever (4a).

5. The swing rod time delay faucet of claim 4 wherein: The bottom of the second mounting hole (8c) is further threadedly connected with an adjustable head (9) which can be adjusted up and down, the top of the adjustable head (9) abuts against the bottom of the damper (5), and the compression amount of the damper (5) is changed by screwing the adjustable head (9) to adjust the time length of the time-delayed closing to adjust the time length of the time-delayed closing.

6. The swing rod time delay faucet of claim 1, wherein: 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 a plug-in part (6b2) capable of being inserted into the reset spring, and the other end is provided with a spherical trigger surface (6b1) in contact with the second end of the swing lever (4a).

7. The swing rod type delay faucet according to any one of claims 2 to 6, characterized in that: The mixing valve core (2) further comprises a valve shell (2b), the valve disc module (2a) is arranged in the valve shell (2b), and the bottom of the valve shell (2b) is provided with a cold water passing hole (2b1) corresponding to the cold water inlet (1a), a hot water passing hole (2b2) corresponding to the hot water inlet (1b), and a mixed water passing hole (2b3) corresponding to the mixed water outlet (1c). The valve disc module (2a) comprises a handle (2a1), a rotor (2a2), a dial (2a3), a moving valve disc (2a4) and a static valve disc (2a5) arranged in sequence from top to bottom, the static valve disc (2a5) is fixed at the bottom of the inner cavity of the valve shell (2b), the moving valve disc (2a4) is arranged above the static valve disc (2a5) and can rotate and slide relative to the static valve disc (2a5), the handle (7) is drivingly connected to the valve handle (2a1) to control the action of the valve handle (2a1), the valve handle (2a1) is hinged to the rotor (2a2) and can reciprocating swing 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), and the moving valve disc (2a4) is fixed to the bottom surface of the dial (2a3).

8. The swing rod type 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 passing hole (2b1), a hot water inlet hole (2a52) corresponding to the hot water passing hole (2b2), and a mixed water outlet hole (2a53) corresponding to the mixed water passing hole (2b3); the dynamic valve plate (2a4) is further provided with a mixed cavity (2a41), and the mixed cavity (2a41) is communicated with a first mixed water inlet (2a42) and a second mixed water inlet (2a43); When the dynamic valve plate (2a4) is switched to the first state by sliding, the first mixed water inlet (2a42) and the second mixed water inlet (2a43) are in a dislocation state with the cold water inlet hole (2a51) and the hot water inlet hole (2a52), and at this time, the mixed valve core (2) is in a closed water outlet state; When the dynamic valve plate (2a4) is switched to the second state by sliding, the second mixed water inlet (2a43) is in a dislocation state with the cold water inlet hole (2a51) and the hot water inlet hole (2a52), the first mixed water inlet (2a42) can be communicated with the mixed water outlet hole (2a53), and the rotation of the dynamic valve plate (2a4) can make the first mixed water inlet (2a42) rotate to cover the cold water inlet hole (2a51) and the hot water inlet hole (2a52) to adjust the cold-hot water mixing ratio flowing into the mixed cavity (2a41); When the dynamic valve plate (2a4) is switched to the third state by sliding, the first mixed water inlet (2a42) is communicated with the mixed water outlet hole (2a53), and the second mixed water inlet (2a43) can be communicated with the cold water inlet hole (2a51).

9. The swing rod time delay faucet of claim 7 wherein: The valve shell (2b) and the faucet shell (1) are further provided with a fixing device (2c) for limiting the mixed valve core (2) from separating upward from the valve core cavity (1e), an annular stepped surface (2b4) is formed on the outer wall of the valve shell (2b), the fixing device (2c) comprises an inner screw sleeve (2c1) and an outer screw sleeve (2c2) which are matched with each other, the inner screw sleeve (2c1) is fixed on the inner wall of the valve core cavity (1e), and the outer screw sleeve (2c2) is threadedly connected to the inner screw sleeve (2c1) and can abut against the annular stepped surface (2b4) from top to bottom.

10. The swing rod type 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), a groove (2c3) matched with the convex rib (1e1) is formed on the outer peripheral wall of the inner screw sleeve (2c1), the rotation of the inner screw sleeve (2c1) relative to the faucet shell (1) is limited by the mutual limiting of the convex rib (1e1) and the groove (2c3), and a snap spring (2c4) for preventing the inner screw sleeve (2c1) from separating upward is further arranged on the inner wall of the valve core cavity (1e).

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