A rotational connection structure, a valve control device and a water purification faucet

Abstract

The present application discloses a rotational connection structure, a valve control device, and a water purification faucet. In the rotational connection structure, the main body is provided with a shaft hole having a first axis and opening at the end face, and a rotational limit block; the rotating shaft is inserted into the shaft hole and rotatably clamped with the main body; the handle is non-rotatably inserted into the rotating shaft along the direction of the first axis, and an abutting block is provided on its outer wall; the abutting block is configured to limit the rotating shaft from exiting the rotational clamping when the handle drives the rotating shaft by abutting against the rotational limit block; the housing is fixedly connected to the main body and is inserted and cooperated with the handle in a relatively rotatable manner along a direction perpendicular to the first axis. The valve control device and the water purification faucet adopt a water path switching structure to achieve water path switching. For the rotational connection structure, the valve control device, and the water purification faucet of the present application, the valve core has a stable relative position relationship with respect to the valve seat, which can avoid the invalidation of the water path control function; further, it is also beneficial to control the production cost and the installation cost.

Description

Technical Field

[0001] The present application relates to the field of water outlet devices, and particularly to a rotational connection structure, a valve control device, and a water purification faucet. Background Art

[0002] In the prior art, the opening and closing or switching of the water path in a water outlet device (such as an ordinary faucet, a shower head, or a water purification faucet) is mostly achieved by setting a control valve. The control valve includes a valve seat, a valve housing, and a valve core. The valve core is limited in the valve seat through the valve housing, and it is generally set to rotate relative to the valve seat to achieve water path control. The above technical solutions mainly have the following defects: The valve core is fixed by the valve housing. Therefore, once there are dimensional errors, assembly errors, or deformations in the outer shell, the position of the valve core in the valve seat is uncertain, the positioning of the valve core is unreliable, and the cooperation with the valve seat is inaccurate, resulting in unreliable water path control functions. In order to ensure that the valve core can be accurately positioned with the valve seat, it is necessary to improve the manufacturing accuracy, installation accuracy, and material stability of the product, and both the production cost and the installation cost are relatively high. Summary of the Invention

[0003] The purpose of the present application is to overcome the above-mentioned defects or problems existing in the background art, and to provide a rotational connection structure, a valve control device, and a water purification faucet, in which the valve core has a stable relative position relationship with respect to the valve seat, which can avoid the invalidation of the water path control function; further, it is also beneficial to control the production cost and the installation cost.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A rotational connection structure includes: a body, which is provided with a shaft hole having a first axis and opening at an end face, and a rotational limiting block; a rotating shaft, which is inserted into the shaft hole and rotatably and snap-connected with the body; a handle, which is non-rotatably inserted along the first axis direction with the rotating shaft, and an abutting block is provided on its outer wall; the abutting block is configured to limit the rotating shaft from withdrawing from the rotational snap connection by abutting against the rotational limiting block when the handle drives the rotating shaft; a housing, which is fixedly connected to the body and is inserted and cooperated with the handle in a relatively rotatable manner along a direction perpendicular to the first axis.

[0006] Further, a clamping groove and a through groove are provided on the inner wall of the shaft hole; the clamping groove extends circumferentially; the through groove extends along the first axis direction, and one end of it communicates with the clamping groove, and the other end communicates with the end face of the body provided with an opening; a convex block is provided on the outer wall of the rotating shaft; the convex block enters the clamping groove through the through groove and forms the rotational snap connection after rotation.

[0007] Further, the handle is inserted into the rotating shaft from the end of the body having the opening of the shaft hole; the rotational limiting block is provided on the end face of the body having the opening of the shaft hole.

[0008] The technical solution also provides a valve control device, including the rotating connection structure as described above; the body constitutes a valve seat; the rotating shaft constitutes a valve core, which is adapted to rotate relative to the body and open or switch the passage when clamped with the body.

[0009] The technical solution also provides a water purification faucet. The housing is provided with a water inlet, a first water outlet and a second water outlet; the water inlet is communicated with an external water source; the body is provided with a first water passing hole, a first water outlet hole and a second water outlet hole; one ends of the first water passing hole, the first water outlet hole and the second water outlet hole are respectively communicated with the water inlet, the first water outlet and the second water outlet, and the other ends of them all extend to the hole wall of the shaft hole; a water outlet channel communicating with the first water passing hole is defined by the outer wall of the rotating shaft and the hole wall of the shaft hole; the rotating shaft is also provided with a first blocking part and a second blocking part; both the first blocking part and the second blocking part are located in the water outlet channel and correspond to the first water outlet hole and the second water outlet hole respectively; when the rotating shaft rotates to the first extreme position, the first blocking part blocks the first water outlet hole, and the second blocking part opens the second water outlet hole; when the rotating shaft rotates to the second extreme position, the first blocking part opens the first water outlet hole, and the second blocking part blocks the second water outlet hole.

[0010] Further, the rotating shaft includes a shaft body, two blocking members and two first elastic members; the shaft body is rotationally clamped with the body and cooperates with the hole wall of the shaft hole to form the water outlet channel, and two assembly grooves are provided on its outer wall; the two blocking members are respectively slidably arranged in the two assembly grooves and respectively constitute the first blocking part and the second blocking part; the two first elastic members are respectively located in the two assembly grooves, and two ends of each first elastic member respectively abut against the blocking member and the bottom of the assembly groove.

[0011] Further, the blocking member is in sealing cooperation with the assembly groove; the shaft body is also provided with a water passing hole channel; the water inlet end of the water passing hole channel is communicated with the water outlet channel, and its water outlet end has two and respectively extends to the bottoms of the two assembly grooves.

[0012] Further, it further includes a filter element; the filter element is installed in the housing, its water inlet end is communicated with the second water outlet hole, and its water outlet end is communicated with the second water outlet.

[0013] Furthermore, it also includes a life monitoring unit; the body is also provided with a water channel; the two ends of the water channel are respectively connected to the water outlet end of the second water outlet and the water inlet end of the filter element; the life monitoring unit includes an impeller, a first magnet, a first sensor, an indicator light and a controller; the impeller is rotatably connected to the water channel and is driven to rotate by the water flow; the first magnet is fixedly mounted on one of the blades of the impeller and is driven to rotate by the water flow flowing into the water channel; the first sensor is mounted on the body, which is used to sense the first magnet and output a pulse signal; the indicator light is mounted on the shell; the controller is electrically connected to the first sensor and the indicator light, which is used to receive the pulse signal and calculate the cumulative use time or cumulative water flow of the filter element according to the pulse signal, and is also used to judge the service life of the filter element by comparing the cumulative use time or cumulative water flow with the preset time value or flow value therein, and control the display color of the indicator light according to the judgment result.

[0014] Furthermore, it also includes an in-place detection unit; the in-place detection unit includes a moving part, a second magnet, a second sensor and a second elastic part; a accommodating chamber and a positioning groove are provided in the shell; the cavity wall of the accommodating chamber is provided with a step surface; the opening end of the positioning groove is provided on the step surface; the filter element is installed in the accommodating chamber and one end abuts the step surface; the moving part is slidably arranged in the positioning groove; the second magnet is fixedly connected to the moving part; the second sensor is installed on the body and electrically connected to the controller; the second elastic part is located in the positioning groove, and its two ends respectively abut the groove bottom of the positioning groove and the moving part; when the filter element is not installed, the moving part protrudes from the open end of the positioning groove, and the second magnet and the second sensor are inductively matched and output an induction signal; when the filter element is installed, the moving part is abutted by the filter element and retracted into the positioning groove; the second magnet and the second sensor are staggered; the controller is also used to receive the induction signal and control the indicator light to display a color.

[0015] Compared with the prior art, the above solution has the following beneficial effects:

[0016] 1. In the rotation connection structure of the present application, the rotating shaft directly establishes an axial limiting relationship with the main body through a rotational snap-fit ​​connection, without the need for an external structure for positioning. Since the main body has good axial structural strength and material stability, the axial position of the rotating shaft relative to the main body is stable; the handle and the rotating shaft are plugged in along the first axis direction to prevent rotation, which can be operated by external force and drive the rotating shaft to rotate, thereby improving the operating feel; the handle forms an axial limit by plugging in with the shell perpendicular to the first axis to prevent it from detaching from the rotating shaft; the abutment block on the handle can form an abutment with the rotation limit block when the handle is rotated and limit the rotating shaft from withdrawing from the rotational snap-fit ​​relationship with the main body, thereby making the connection between the rotating shaft and the main body stable and reliable.

[0017] 2. In the rotational connection structure of the present application, the specific structural form of the rotational snap - fit structure between the rotating shaft and the main body is as follows: the card slot and the through - slot are provided on the hole wall of the shaft hole, and the convex block is provided on the outer wall of the rotating shaft. During assembly, the operator can position and insert the rotating shaft by observing the relative position of the convex block and the through - slot. At the same time, the operator can also rotate the rotating shaft until the convex block is snap - fitted with the card slot by observing the orientation of the card slot. The convenience of assembly is good and the time cost consumed is low.

[0018] 3. In the rotational connection structure of the present application, the rotational limiting block is provided on the end face of the main body having the opening of the shaft hole, and it is close to the handle. Therefore, the handle can be designed with a simple structure of the abutting block, and it can reduce material waste and occupy less space.

[0019] 4. In the valve control device of the present application, since the above - mentioned rotational connection structure is applied, and the valve seat and the valve core are respectively composed of the main body and the rotating shaft. Therefore, in this technical solution, the valve core is directly axially limited and connected to the valve seat. On the one hand, the use of external structures such as valve shells or end covers is cancelled, the structure is simpler, and the production cost and installation cost of the product are lower. On the other hand, due to the good structural stability of the valve seat shaft, the position of the valve core relative to the valve seat is stable and reliable, which can ensure that the valve control device has a reliable function of opening, closing or switching the passage.

[0020] 5. In the water purification faucet of the present application, since the above - mentioned valve control device is adopted, it has the same effect as the valve control device.

[0021] 6. In the water purification faucet of the present application, during use, when the rotating shaft is rotated so that the first blocking portion blocks the first water outlet hole and the second blocking portion opens the second water outlet hole, the first water outlet does not discharge water, and the second water outlet discharges water; when the rotating shaft is rotated so that the first blocking portion opens the first water outlet hole and the second blocking portion blocks the second water outlet hole, the first water outlet discharges water, and the second water outlet does not discharge water. The water path switching structure is simple and the operation is convenient. In addition, since a water outlet channel is formed between the rotating shaft and the hole wall of the shaft hole, there is no need to design two separate water paths inside the rotating shaft to respectively communicate the first water passing hole with the first water outlet hole and the first water passing hole with the second water outlet hole. The structure is simple and the manufacturing cost is low. Also, since the convex block and the card slot have strong shear strength and the convex block does not deform, there is no problem that the shaft body is separated from the main body due to excessive water pressure in the water outlet channel.

[0022] 7. In the water purification faucet of the present application, since the blocking member is installed in the assembly groove, it can rotate with the shaft body, and the stability is good; the two blocking members can be closely attached to the hole wall of the shaft hole under the action of two first elastic members respectively, so as to reliably block the first water outlet hole or the second water outlet hole, and the switching opening and closing function is reliable.

[0023] 8. In the water purification faucet of the present application, by providing two water passing channels respectively communicating with the bottoms of the two assembly grooves, when the plugging member is abutted by the first elastic member, it is further reliably abutted against the hole wall of the shaft hole by the action of water pressure, which is beneficial to improving the plugging effects of the two plugging members on the first water outlet hole and the second water outlet hole respectively.

[0024] 9. In the water purification faucet of the present application, since the filter element is communicated with the second water outlet hole and the second water outlet, therefore, the water purification faucet has the function of switching between raw water outlet and filtered water outlet, with a simple structure, low manufacturing cost, strong applicability, and can meet people's cleaning needs; in actual use, if raw water is needed for cleaning, the user can rotate the rotating shaft to the state where the first plugging part opens the first water outlet hole and the second plugging part plugs the second water outlet hole. At this time, the water flow flowing in from the water inlet sequentially flows out through the first water passing hole, the water outlet channel, the first water outlet hole and the first water outlet; if filtered water is needed, the user can rotate the switching component to the state where the first plugging part plugs the first water outlet hole and the second plugging part opens the second water outlet hole. At this time, the water flow flowing in from the water inlet sequentially flows into the filter element through the first water passing hole, the water outlet channel and the second water outlet hole, and flows out from the second water outlet after being filtered by the filter element.

[0025] 10. In the water purification faucet of the present application, when raw water flows into the water passing channel from the second water outlet hole and pushes the impeller to rotate, when the first magnet on the impeller blade rotates near the first sensor, the first sensor generates an electrical signal and transmits it to the controller. The controller records the cumulative usage time of the filter element or calculates the cumulative water usage of the filter element by converting the rotation speed of the impeller into water volume, and compares the cumulative usage time or cumulative water usage with the preset time value or water volume value to judge the service life of the filter element, and reminds the user through the indicator light to remind the user to replace the filter element within the specified safe usage period to ensure people's water use safety and physical health.

[0026] 11. In the water purification faucet of the present application, the setting of the in-place detection unit can detect and prompt the user whether the filter element is installed in place, which is convenient for the user to install and ensures the normal and effective filtering function of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments, the following briefly introduces the drawings to be used:

[0028] Figure 1 It is a three-dimensional exploded structural schematic diagram of the water purification faucet of the present application;

[0029] Figure 2 It is a three-dimensional structural schematic diagram of the water purification faucet of the present application;

[0030] Figure 3 It is a structural schematic diagram of the water passing seat in the present application;

[0031] Figure 4 It is a schematic cross-sectional structure diagram of the water passing seat in this application;

[0032] Figure 5 It is a schematic structure diagram of the rotating shaft in this application;

[0033] Figure 6 It is a schematic cross-sectional view of the rotating shaft in this application;

[0034] Figure 7 It is a schematic cross-sectional structure diagram of the water passing seat, the rotating shaft and the handle in the first water outlet hole opening state in this application;

[0035] Figure 8 is Figure 7 a schematic cross-sectional structure diagram of the water purification faucet in this application in the state;

[0036] Figure 9 It is a schematic cross-sectional structure diagram of the water passing seat, the rotating shaft and the handle in the second water outlet hole opening state in this application;

[0037] Figure 10 is Figure 9 a schematic cross-sectional structure diagram of the water purification faucet in this application in the state;

[0038] Figure 11 It is a schematic structure diagram when the handle in this application rotates to the first extreme position;

[0039] Figure 12 It is a schematic structure diagram when the handle in this application rotates to the second extreme position;

[0040] Figure 13 It is a schematic three-dimensional exploded structure diagram of the water passing body in this application;

[0041] Figure 14 It is an installation schematic diagram of the life monitoring unit in this application;

[0042] Figure 15 It is a state schematic diagram of the in-place detection unit when the filter element is not installed in this application;

[0043] Figure 16 It is a state schematic diagram of the in-place detection unit when the filter element is installed in this application.

[0044] Main reference numeral description:

[0045] Water purification faucet 100;

[0046] Body 1; water connection base 11; base body 11a; pipe body 11b; first pipe 11b1; second pipe 11b2; water isolation wall 11b3; shaft hole 111; first water passing hole 112; first water outlet hole 113; second water outlet hole 114; rotation limiting block 115; card slot 116; passing slot 117; water passing body 12; water passing base 121; water passing groove 1211; first plug post 1212; water passing cover 122; second plug post 1221; water passing channel 120;

[0047] Rotating shaft 2; shaft body 21; large diameter section 211; annular groove 2111; convex block 2112; jack 2113; small diameter section 212; assembly groove 2121; water passing hole channel 210; sealing member 22; first elastic member 23; water outlet channel 20;

[0048] Handle 3; convex shaft 31; abutting block 311; annular slot 312; operating portion 32; positioning groove 321;

[0049] Shell 4; upper shell 41; top wall 411; partition wall 412; connecting wall 413; installation groove 414; slot 415; step surface 4151; plugging wall 4152; water outlet post 416; filtered water outlet hole 4161; second water outlet 4160; positioning groove 417; buckle 418; raw water inlet hole 419; water inlet 4190; second water passing hole 410; bottom cover 42; buckle piece 421; buckle groove 4211; raw water outlet hole 422; first water outlet 4220; through hole 423; filter element cover cylinder 43; perspective window 40;

[0050] Filter element 5; filter element water inlet hole 51; filter element water outlet hole 52; convex post 53; water passing gap 50;

[0051] Lifetime monitoring unit 6; impeller 61; first magnet 62; controller 63; indicator light 64;

[0052] In-place detection unit 7; moving member 71; second magnet 72; second sensor 73; second elastic member 74;

[0053] Gear unit 8; detent ball 81; third elastic member 82. Detailed implementation manners

[0054] In the claims and the description, unless otherwise limited, the terms "first", "second", "third", etc. are used to distinguish different objects rather than to describe a specific order.

[0055] In the claims and the specification, unless otherwise defined, the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of simplified description, rather than implying that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation.

[0056] In the claims and the specification, unless otherwise defined, the term "fixed connection" or "fixedly connected" shall be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated as a whole, and being fixedly connected through other devices or elements.

[0057] In the claims and the specification, unless otherwise defined, the terms "comprise", "include" and their variants mean "including but not limited to".

[0058] In the claims and the specification, unless otherwise defined, the term "communicate with" shall be understood in a broad sense, including direct communication and indirect communication.

[0059] In the claims and the specification, unless otherwise defined, the terms "sleeve", "tubular" and their variants have a tubular structure with one end open and the other end closed in shape.

[0060] In the claims and the specification, unless otherwise defined, the term "front face" means the side of the water purification faucet facing the user when it is installed in place.

[0061] In the claims and the specification, unless otherwise defined, the term "rotational snap connection" means that after the insertion and rotation between two objects, a snap connection is achieved and an axial limit relationship between each other is reached, and the two objects are adapted to withdraw from the snap connection relationship by reverse rotation.

[0062] Hereinafter, the technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings.

[0063] See Figures 1 to 16 , Figures 1 to 16 which shows the water purification faucet 100 of this embodiment. As Figures 1 to 16 shown, the water purification faucet 100 in this embodiment includes a body 1, a rotating shaft 2, a handle 3, a housing 4, a filter element 5, a life monitoring unit 6, a position detection unit 7 and a gear unit 8.

[0064] Among them, the main body 1 is provided with a shaft hole 111 with the first axis as the axis and opening at the end face, a rotation limiting block 115, a first water passing hole 112, a first water outlet hole 113, a second water outlet hole 114, and a water passage 120.

[0065] Specifically, as Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 shown, in this embodiment, the main body 1 includes a water passing seat 11 and a water passing body 12.

[0066] Among them, the water passing seat 11 includes a seat main body 11a and a pipe main body 11b; the seat main body 11a is used for fixedly connecting with the housing 4, and the pipe main body 11b is integrally formed on the upper surface of the seat main body 11a, and it includes a first pipe 11b1 and a second pipe 11b2 that are vertically intersecting; the first pipe 11b1 is vertically arranged, its bottom end is fixedly formed with the pipe wall of the second pipe 11b2, and it is used for communicating with an external water source; the second pipe 11b2 is horizontally arranged, and a water separating wall 11b3 is vertically arranged therein. The space between the first end of the second pipe 11b2 and the water separating wall 11b3 in the inner hole of the second pipe 11b2 constitutes the shaft hole 111. In addition, the second pipe 11b2 is also provided with a first water passing hole 112, a first water outlet hole 113, a second water outlet hole 114, and a rotation limiting block 115; one end of each of the first water passing hole 112, the first water outlet hole 113, and the second water outlet hole 114 extends to the hole wall of the shaft hole 111, that is, the first water passing hole 112, the first water outlet hole 113, and the second water outlet hole 114 are all communicated with the shaft hole 111. Specifically, the first water passing hole 112 is arranged at the junction of the second pipe 11b2 and the first pipe 11b1, and it communicates the inner hole of the first pipe 11b1 and the shaft hole 111; the first water outlet hole 113 is arranged on the pipe wall of the second pipe 11b2 and is arranged opposite to the first water passing hole 112; the second water outlet hole 114 is eccentrically arranged on the water separating wall 11b3. The rotation limiting block 115 is arranged but not limited to the first end face of the second pipe 11b2.

[0067] The water passing body 12 is as Figure 13As shown in the figure, it is fixedly installed on the seat body 11a and includes a water passing seat 121 and a water passing cover 122. The water passing seat 121 is fixedly connected to the seat body 11a by means of screwing (such as screws), gluing or welding, etc. In this embodiment, gluing is specifically used for fixing. It is provided with a water passing groove 1211 with an upward opening, and its outer wall is provided with a first insertion post 1212. The first insertion post 1212 is provided with a central hole penetrating through to the water passing groove 1211. When the water passing seat 121 is fixed in place on the seat body 11a, the first insertion post 1212 is hermetically inserted into the second water outlet hole 114, and its central hole is hermetically communicated with the second water outlet hole 114. The water passing cover 122 is hermetically covered on the upper end of the water passing seat 121 by gluing and closes the water passing groove 1211. Its upper surface is provided with a second insertion post 1221, and the second insertion post 1221 also has a central hole penetrating through to the water passing groove 1211. Among them, the central holes of the first insertion post 1212, the water passing groove 1211 and the central hole of the second insertion post 1221 are communicated to form a water passing channel 120, that is, the water passing channel 120 is communicated with the water outlet end of the second water outlet hole 114.

[0068] The rotating shaft 2 is inserted into the shaft hole 111 and is rotationally clamped with the body 1. The outer wall of the rotating shaft 2 and the hole wall of the shaft hole 111 define a water outlet channel 20. The rotating shaft 2 is provided with a first blocking portion and a second blocking portion that are both located in the water outlet channel 20 and are respectively used for corresponding to the first water outlet hole 113 and the second water outlet hole 114.

[0069] Specifically, as Figure 5 、 Figure 6 and Figure 7 shown, the rotating shaft 2 includes a shaft body 21, two blocking members 22 and two first elastic members 23.

[0070] Among them, the shaft body 21 is rod-shaped, it extends along the first axis direction and is coaxially inserted into the shaft hole 111. It is rotationally clamped with the body 1 and cooperates with the hole wall of the shaft hole 111 to form a water outlet channel 20. Its outer wall is provided with two assembly grooves 2121, and specifically, as Figure 6As shown, the shaft body 21 includes a large-diameter section 211 and a small-diameter section 212 with different diameters. When the shaft body 21 is inserted in place within the shaft hole 111, the large-diameter section 211 is close to the opening end side of the shaft hole 111, and the small-diameter section 212 is close to the water-blocking wall 11b3 side; the outer edge surface of the large-diameter section 211 is in matching abutment with the hole wall of the shaft hole 111, and an annular groove 2111 is provided on its outer wall for installing an O-ring seal so that the large-diameter section 211 can form a sealed fit with the hole wall of the shaft hole 111. In other words, the shaft body 21 is rotatably connected to the shaft hole 111 in a sealed manner; the outer wall of the small-diameter section 212 is spaced from the hole wall of the shaft hole 111 and defines a water outlet channel 20 that is always in communication with the first water passage hole 112; two assembly grooves 2121 are respectively provided on the side wall of the small-diameter section 212 and on the end face of the small-diameter section 212 facing the water-blocking wall 11b3; in addition, a water passage hole 210 is also provided on the small-diameter section 212. The water inlet end of the water passage hole 210 is in communication with the water outlet channel 20, and the water outlet end of the water passage hole 210 has two, and its two water outlet ends are respectively in communication with the bottoms of the two assembly grooves 2121.

[0071] In this embodiment, the specific implementation manner of the rotational snap connection between the shaft body 21 and the body 1 is as follows: As Figures 3 - 5 shown, a clamping groove 116 and a through groove 117 are provided on the hole wall of the shaft hole 111; the clamping groove 116 extends circumferentially, and the through groove 117 extends along the first axial direction and communicates the first end of the second pipe 11b2 and the clamping groove 116; a convex block 2112 is further provided on the outer wall of the large-diameter section 211 of the rotating shaft 2. When the shaft body 21 is inserted into the shaft hole 111 along the first axial direction, the convex block 2112 enters the clamping groove 116 through the through groove 117 and can form a rotational snap connection with the clamping groove 116 after rotation; since during assembly, the operator can position and insert the rotating shaft 2 by observing the relative positions of the convex block 2112 and the through groove 117, and at the same time, can also rotate the rotating shaft 2 to make the convex block 2112 engage with the clamping groove 116 by observing the orientation of the clamping groove 116, therefore, the rotational connection structure in this embodiment has good assembly convenience and low time cost. In this embodiment, the convex block 2112 is adapted to rotate circumferentially relative to the clamping groove 116 between a first extreme position and a second extreme position.

[0072] It should be understood that in actual application, if the clamping groove 116 and the through groove 117 are provided on the outer wall of the shaft body 21 and the convex block 2112 is provided on the inner wall of the shaft hole 111, it can also achieve rotational snap connection, so it should be regarded as the same technical solution as this application.

[0073] The two plugging members 22 are both elastic gaskets, which are respectively slidably sealed in the two assembly grooves 2121 and respectively constitute the first plugging part and the second plugging part of the rotating shaft 2. The first plugging part is used to open and close the connection between the first water outlet hole 113 and the water outlet channel 20, that is, to open or plug the first water outlet hole 113; the second plugging part is used to open and close the connection between the second water outlet hole 114 and the water outlet channel 20, that is, to open or plug the second water outlet hole 114. When the rotating shaft 2 rotates to the first extreme limit position, the first plugging part opens the first water outlet hole 113, and the second plugging part plugs the second water outlet hole 114; when the rotating shaft 2 rotates to the second extreme limit position, the first plugging part plugs the first water outlet hole 113, and the second plugging part opens the second water outlet hole 114.

[0074] The two first elastic members 23 are both springs, which are respectively located in the two assembly grooves 2121. The two ends of each first elastic member 23 respectively abut against the bottom of the assembly groove 2121 and the plugging member 22. The plugging member 22 is adapted to protrude from the assembly groove 2121 under the abutment of the first elastic member 23, so that it can reliably abut against the hole wall of the shaft hole 111 and realize the plugging of the first water outlet hole 113 or the second water outlet hole 114.

[0075] In this embodiment, since the plugging member 22 is installed in the assembly groove 2121, it can rotate with the shaft body 21, and has good stability; the two plugging members 22 can be closely abutted against the hole wall of the shaft hole 111 under the action of the two first elastic members 23 respectively, so as to realize the reliable plugging of the first water outlet hole 113 or the second water outlet hole 114, and the function of switching the opening and closing of the water outlet hole is reliable. Also, since there are two water passing channels 210 provided on the shaft body 21 and respectively communicating with the bottoms of the two assembly grooves 2121, when the plugging member 22 is abutted by the first elastic member 23, it further relies on the action of water pressure to reliably abut against the hole wall of the shaft hole 111, which is beneficial to improving the plugging effect of the two plugging members 22 on the first water outlet hole 113 and the second water outlet hole 114 respectively.

[0076] From the above relationship, it can be seen that in this embodiment, the body 1 and the rotating shaft 2 constitute a valve control device, which can realize the switching of the water path. Specifically, the body 1 constitutes a valve seat, and the rotating shaft 2 constitutes a valve core. The rotating shaft 2 realizes the switching of the water path by rotating relative to the body 1. Compared with the common three-way control valve structure, since the water outlet channel 20 is directly formed between the rotating shaft 2 and the hole wall of the shaft hole 111, there is no need to design two separate water paths inside the rotating shaft 2 to respectively communicate the first water passing hole 112 with the first water outlet hole 113 and the first water passing hole 112 with the second water outlet hole 114, so the structure is simple and the manufacturing cost is low; also, since the convex block 2112 and the clamping groove 116 have strong shear strength and the convex block 2112 will not deform, there is no problem that the shaft body 21 is separated from the body 1 due to excessive water pressure in the water outlet channel 20.

[0077] The handle 3 is plugged with the shaft 2 along the first axis direction and has an abutment block 311 on its outer wall. The abutment block 311 is configured to abut against the rotation limit block 115 to limit the shaft 2 from exiting the rotation engagement when the handle 3 drives the shaft 2 .

[0078] Specifically, if Figure 6 , Figure 7 , Figure 11 and Figure 12 As shown, the handle 3 includes an integrally formed convex shaft 31 and an operating portion 32, the convex shaft 31 extends along the first axis direction; the end of the shaft body 21 away from the water barrier wall 11b3 (the end face of the large diameter section 211) is provided with a socket 2113 extending along the first axis direction, and the hole wall of the socket 2113 is formed with a rotation-stopping surface parallel to the first axis direction; the convex shaft 31 is matched and plugged into the socket 2113 from the end of the body 1 having the axial hole 111 opening, thereby realizing the rotation-stopping plug-in relationship between the handle 3 and the rotating shaft 2 along the first axis direction. In this embodiment, when the convex shaft 31 is plugged into the socket 2113, its part is located in the socket. 2113, an abutment block 311 and an annular groove 312 are provided on the outer wall of the portion of the convex shaft 31 outside the insertion hole 2113. The abutment block 311 is closer to the side where the rotating shaft 2 is located than the annular groove 2111. When the handle 3 is rotated until the abutment block 311 abuts the rotation limit block 115, the rotating shaft 2 rotates to the first limit position. At this time, the convex block 2112 is staggered with the through groove 117, so the rotating shaft 2 cannot escape relative to the body 1; when the handle 3 drives the rotating shaft 2 to rotate until the convex block 2112 abuts against the end of the card slot 116 away from the through groove 117, the rotating shaft 2 rotates to the second limit position. The operating part 32 is fixedly connected to one end of the convex shaft 31 outside the insertion hole 2113, which can be held by the user and perform the rotation operation. In this embodiment, a positioning groove 321 extending along the first axis direction is provided on one side of the operating part 32 facing the end face of the second tube 11b2. In this embodiment, since the rotation limit block 115 is disposed on the end surface of the body 1 having the shaft hole 111 opening, which is close to the handle 3, the handle 3 can be designed with a simple structure to abut the block 311 and reduce space occupation.

[0079] The shell 4 is fixedly connected to the main body 1 and is plugged and matched with the handle 3 so as to be relatively rotatable along a direction perpendicular to the first axis. It is provided with a water inlet 4190, a first water outlet 4220 and a second water outlet 4160. The water inlet 4190, the first water outlet 4220 and the second water outlet 4160 are respectively suitable for being connected to the first water hole 112, the first water outlet hole 113 and the second water outlet hole 114, wherein the water inlet 4190 is connected to an external water source.

[0080] Specifically, Figure 1 , Figure 8 and Figure 10 , Figure 15As shown, the housing 4 includes an upper shell 41, a bottom cover 42, and a filter element cover cylinder 43.

[0081] Among them, the open end of the upper shell 41 faces downward, and its inner cavity forms an installation groove 414. A cylindrical partition wall 412 is provided on the lower surface of the top wall 411. The bottom end of the partition wall 412 is closed, its upper end is open, and its opening is provided on the upper surface of the bottom of the partition wall 412 (i.e., the bottom end) of the top wall 411 of the upper shell 41. An annular plug wall 4152 coaxial with the connecting wall 413 is provided on the upper surface of the bottom of the partition wall 412. An outlet water column 416 coaxial with the plug wall 4152 is provided on the lower surface of the bottom of the partition wall 412. A column hole is provided in the outlet water column 416. The column hole of the outlet water column 416 constitutes the filtered water outlet hole 4161 of the water purification faucet 100. The bottom end port of the filtered water outlet hole 4161 constitutes the second water outlet 4160 of the housing 4. A through hole for communicating the central hole of the plug wall 4152 and the column hole of the outlet water column 416 is provided at the bottom of the partition wall 412. An annular connecting wall 413 is provided on the upper surface of the top wall 411 of the upper shell 41. The connecting wall 413 is coaxial with the plug wall 4152, and its central hole is vertically communicated with the inner cavity of the partition wall 412 to form a slot 415. An upward annular step surface 4151 is provided on the side wall of the slot 415. In this embodiment, the step surface is specifically constituted by the upper end surface of the partition wall 412, and the plug wall 4152 is located in the slot 415. In addition, in this embodiment, the upper shell 41 is further provided with a positioning groove 417 and a second water passing hole 410. The extending direction of the positioning groove 417 is the same as that of the slot 415, and its open end is located on the step surface 4151. The extending direction of the second water passing hole 410 is the same as that of the slot 415, and its two ends respectively extend to the installation groove 414 and the step surface 4151. A plurality of vertically downward extending buckles 418 are provided along the circumference of the lower opening of the housing 4. In addition, in this embodiment, a water inlet joint is further connected to the housing 4. The inner hole of the water inlet joint extends vertically and constitutes the raw water inlet hole 419. The upper end port of the raw water inlet hole 419 constitutes the water inlet 4190.

[0082] The bottom cover 42 is detachably covered on the lower end opening of the upper shell 41 and defines an installation cavity with the installation groove 414. The bottom cover 42 is a plate-like structure with a surrounding plate, and its upper surface is provided with a plurality of snap pieces 421 respectively corresponding to the snaps 418. The snap pieces 421 are provided with snap grooves 4211 adapted to be snap-connected with the snaps 418. The bottom cover 42 is further provided with a plurality of raw water outlet holes 422 and through holes 423 that all extend vertically. The lower end port of the raw water outlet hole 422 constitutes the first water outlet 4220; the through hole 423 allows the water outlet column 416 to pass through; when the bottom cover 42 is properly closed on the lower end opening of the upper shell 41, the water outlet column 416 is inserted into the through hole 423 to ensure external water discharge, and the lower end of the water outlet column 416 is flush with the lower surface of the bottom cover 42, ensuring good aesthetics of the product. In addition, in this embodiment, the side wall of the upper shell 41 and the surrounding plate of the bottom cover 42 further cooperate to form a perspective window 40 and a through operation hole. The perspective window 40 is arranged at the bottom of the front of the housing 4; the operation hole is arranged on the side of the housing 4 away from the filter element cover cylinder 43, which is used for the handle 3 to extend out, and its hole edge is adapted to be inserted into the annular slot 312 of the handle 3 to form a plug-in fit perpendicular to the first axis direction with the handle 3 and limit the axial position of the handle 3 along the first axis direction, while not affecting the rotatable function of the handle 3.

[0083] Specifically, in this embodiment, the seat body 11a on the water connection seat 11 is installed in the installation cavity, and it is specifically fixedly connected to the bottom cover 42 through a screwing member (such as a screw). When the main body 1, the rotating shaft 2 and the handle 3 are properly installed on the housing 4, the first pipe 11b1 of the water connection seat 11 extends vertically, and its top end is hermetically inserted into the water inlet joint on the housing 4 so that the first water passing hole 112 is communicated with an external water source through the water inlet 4190. The first water outlet hole 113 is hermetically docked with the first water outlet 4220 to discharge raw water to the outside. The second plug column 1221 on the water passing body 12 is hermetically inserted into one end of the second water passing hole 410 located in the slot 415. Therefore, the water flow flowing into from the second water outlet hole 114 can flow into the accommodating cavity through the water channel 120 and the second water passing hole 410. The handle 3 passes through the operation hole, and the hole edge of the operation hole is inserted into the annular slot 312 on the outer wall of the convex shaft 31 in the direction perpendicular to the first axis to limit the handle 3 from detaching from the rotating shaft 2 along the first axis direction. The end surface of the abutting block 311 faces the second pipe 11b2. When the abutting block 311 rotates, it can abut against the rotation limiting block 115 and limit the rotation of the convex block 2112 on the shaft body 21 to be opposite to the through slot 117.

[0084] The opening end of the filter element cover cylinder 43 faces, and it is sleeved on the outer periphery of the connecting wall 413 and the opening end abuts against the top wall 411 of the upper shell 41. It is detachably fixed to the connecting wall 413 in a form of rotational snap connection, and the inner circle thereof and the slot 415 define a receiving cavity for the filter element 5 to be inserted. In order to ensure the sealing ring of the receiving cavity, a corresponding sealing ring is sleeved on the outer wall of the connecting wall 413 to form a sealing fit with the filter element cover cylinder 43.

[0085] The filter element 5 is installed in the housing 4, its water inlet end communicates with the second water outlet hole 114, and its water outlet end communicates with the second water outlet 4160.

[0086] Specifically, the filter element is as Figure 1 , Figure 8 and Figure 10 shown. It has a cylindrical structure, its axis extends in the vertical direction, several filter element water inlet holes 51 are provided at its top end, and a convex column 53 is provided at its bottom end. A filter element water outlet hole 52 is provided in the convex column 53. The filter element 5 is installed in the receiving cavity, its bottom is vertically inserted downward into the slot 415, and its top is covered by the filter element cover cylinder 43; when the filter element 5 is installed in place in the receiving cavity, the convex column 53 is hermetically inserted into the inserting wall 4152. Since the central hole of the inserting wall 4152 communicates with the column hole of the water outlet column 416, therefore, the water outlet end of the filter element 5 communicates with the second water outlet 4160, the bottom end of the filter element 5 abuts against the step surface 4151, and a water passing gap 50 is defined by the interval between the outer wall of the filter element 5 and the cavity wall of the receiving cavity. Since one end of the second water passing hole 410 extends to the step surface 4151, therefore, the water passing gap 50 communicates with the second water passing hole 410, the water passing channel 120 and the second water outlet hole 114; and since the top end of the filter element 5 is located in the receiving cavity, therefore, the water passing gap 50 communicates with the water inlet end of the filter element 5. Thus, the water inlet end of the filter element 5 communicates with the second water outlet hole 114. It should be noted that in order to enable the water inlet end of the filter element 5 to communicate with the water passing gap 50, a corresponding abutting protrusion needs to be provided at the bottom of the filter element cover cylinder 43 to abut against the top end of the filter element 5 and ensure that the bottom end of the filter element 5 can abut against the step surface 4151.

[0087] The life monitoring unit 6 is as Figure 1 and Figure 14 shown, and includes an impeller 61, a first magnet 62, a first sensor (not shown in the figure), an indicator light 64 and a controller 63.

[0088] Among them, the impeller 61 is rotatably installed in the water passing tank 1211 with a vertical rotation axis. A tangential water inlet is provided in the water passing tank 1211. The water flowing into the central hole of the first plug post 1212 is output to the impeller 61 through the tangential water inlet and drives the impeller 61 to rotate; the first magnet 62 is fixedly installed at the end of one of the blades of the impeller 61; the first sensor is installed on the water passing seat 11 close to the water passing body 12, and is used to sense the first magnet 62 and output a pulse signal; the indicator light 64 is installed in the housing 4 and corresponds to the perspective window 40; the controller 63 is electrically connected to the first sensor and the indicator light 64, and can receive the pulse signal, calculate the cumulative usage time of the filter element 5 according to the pulse signal or calculate the cumulative water volume passed according to the rotation speed of the impeller 61, and it can also compare the cumulative usage time or the cumulative water volume with the preset time value or water volume value in it and judge the service life of the filter element 5, and control the indicator light 64 to display a color according to the judgment result, so as to remind the user to replace the filter element 5 within the specified safe usage period and ensure the safety and health of people's water use; in this embodiment, the first sensor is but not limited to a Hall sensor, and it is integrated with the controller 63 on the same component.

[0089] Preferably, in this embodiment, multiple levels of time values or multiple levels of water volume values are preset in the controller 63. When the cumulative usage time or the cumulative water volume reaches different levels of time values or water volume values, the controller 63 can prompt the user to clean or replace the filter element 53.

[0090] The indicator light 64 is specifically as Figure 1 shown. It is installed on the bottom cover 42 corresponding to the perspective window 40 and is located in the installation cavity. When the cumulative usage time reaches different preset time values or the cumulative water volume reaches different preset water volume values, the controller 63 controls the indicator light 64 to display different colors. Taking the method of using the cumulative usage time to detect the service life of the filter element 5 as an example, if the controller 63 detects that the cumulative usage time of the filter element 5 reaches one month, then it can control the indicator light 64 to display green; if the controller 63 detects that the cumulative usage time of the filter element 5 reaches two months, then it can control the indicator light 64 to display yellow; if the controller 63 detects that the cumulative usage time of the filter element 5 reaches three months, then it can control the indicator light 64 to display red, so as to help the user clean or replace the filter element 5 according to the color of the indicator light 64.

[0091] The in-place detection unit 7 is as Figure 15 and Figure 16As shown, it includes a moving member 71, a second magnet 72, a second sensor 73 and a second elastic member 74; the moving member 71 is slidably arranged in the positioning groove 417 along the plugging direction (vertical direction) of the filter element 5, and the second magnet 72 is fixedly connected to the moving member 71; the second sensor 73 is installed on the body 1 and is electrically connected to the controller 63. In this embodiment, the second sensor 73 is specifically installed on the water-passing seat 11; the second elastic member 74 is located in the positioning groove 417, and its two ends respectively abut the moving member 71 and the bottom of the positioning groove 417; when the filter element 5 is not installed in the slot 415, the moving member 71 protrudes from the open end (step surface 4151 of the positioning groove 417) of the positioning groove 417 under the action of the second elastic member 74. ), the second magnet 72 and the second sensor 73 are inductively matched, that is, the second sensor 73 senses the second magnet 72 and sends an induction signal to the controller 63, and the controller 63 receives the induction signal and reminds the user by controlling the indicator light 64 to display the corresponding color or controlling other alarm responses; when the filter element 5 is installed in place, the bottom end of the filter element 5 abuts against the step surface 4151, and the movable member 71 slides toward the bottom side of the positioning groove 417 under the abutment of the filter element 5 until the second magnet 72 and the second sensor 73 are staggered, the color of the indicator light 64 disappears or the alarm stops alarming, the prompt effect is good, it is convenient for users to install, and effectively ensures that the filtering function of the product is normal and effective. In this embodiment, the second sensor 73 adopts but is not limited to a Hall sensor.

[0092] Preferably, in this embodiment, the side wall of the movable member 71 is sealed with the groove wall of the positioning groove 417 to isolate the second magnet 72 and the second elastic member 74 from the water gap 50, thereby improving the service life of the second magnet 72 and the second elastic member 74.

[0093] The gear unit 8 is as follows Figure 7 As shown, it includes a ball 81 and a third elastic member 82. The outer wall of the upper shell 41 is provided with a first groove and a second groove (not shown in the figure) arranged at intervals along the circumferential direction on the side facing the operating part 32. The ball 81 and the third elastic member 82 are both installed in the positioning groove 321 of the operating part 32, and the ball 81 faces the side where the first groove and the second groove are located. The third elastic member 82 is a spring, which abuts against the bottom of the positioning groove 321 and the ball 81 in a direction parallel to the first axis (i.e., the horizontal direction), so that the ball 81 can protrude from the open end of the positioning groove 321 and form a match with the first groove or the second groove. In this embodiment, when the handle 3 is rotated to open the first water outlet 113, the ball 81 cooperates with the first groove; when the handle 3 is rotated to open the second water outlet 114, the ball 81 cooperates with the second groove, and the gear position sense is strong, which can help the user judge whether it is rotated in place during operation.

[0094] The installation process of the water purification faucet 100 provided in this embodiment is as follows:

[0095] Fix the first magnet 62 onto one of the blades of the impeller 61 in place and take sealing measures such as filling with glue; rotatably install the impeller 61 in the water passage groove 1211 of the water passage seat 121; glue the water passage cover 122 onto the water passage seat 121; sleeved an O-ring seal on the outer periphery of the first plug post 1212, and fix the assembled water passage body 12 onto the seat body 11a of the water connection seat 11 when the first plug post 1212 is sealingly inserted into the second water outlet hole 114.

[0096] Respectively install the two first elastic members 23 into the two assembly grooves 2121, and then respectively install the two plugging members 22 into the two assembly grooves 2121; insert the rotating shaft 2 into the shaft hole 111 of the second pipe 11b2 when the convex block 2112 is aligned with the through groove 117, and then rotate the rotating shaft 2 so that the convex block 2112 is snapped into the clamping groove 116. At this time, the rotating shaft 2 cannot be disengaged from the shaft hole 111, and at the same time, the approximate positions of the two plugging members 22 in the shaft hole 111 are also determined.

[0097] Install the controller 63, the first sensor and the second sensor 73 at the corresponding positions on the seat body 11a and ensure that both the first sensor and the second sensor 73 are electrically connected to the controller 63. Then, fix the seat body 11a onto the bottom cover 42 with screws. Fix the indicator light 64 at the corresponding position on the bottom cover 42 when the indicator light 64 is electrically connected to the controller 63.

[0098] Install the catch ball 81 and the third elastic member 82 into the positioning groove 321, matchingly insert the convex shaft 31 of the handle 3 into the jack 2113 of the shaft body 21, and rotate the handle 3 until the abutting block 311 is located on the side of the rotation limiting block 115 away from the through groove 117; when holding the operating portion 32 of the handle 3 by hand to prevent the convex shaft 31 from disengaging from the jack 2113, snap the upper shell 41 and the bottom cover 42 together. At this time, the edge of the operation hole formed by the cooperation of the upper shell 41 and the bottom cover 42 is inserted into the annular slot 312 of the convex shaft 31, and the handle 3 is limited in the first axis direction.

[0099] Fix the second magnet 72 onto the moving member 71, install the moving member 71 and the second elastic member 74 into the positioning groove 417, insert the filter element 5 at the slot 415, the convex post 53 of the filter element 5 is sealingly inserted into the insertion wall 4152, and finally sleeved the filter element cover cylinder 43 outside the filter element 5 and sealingly rotationally snapped it with the connecting wall 413 to complete the assembly.

[0100] When the water purification faucet 100 provided in this embodiment is in use, when raw water is needed, rotate the handle 3 until the abutting block 311 abuts against the rotation limiting block 115, and the rotating shaft 2 rotates to the first extreme position. At this time, the first blocking portion opens the first water outlet hole 113, and the second blocking portion blocks the second water outlet hole 114. The water flowing in from the water inlet 4190 flows through the first water passing hole 112, the water outlet passage 20, the first water outlet hole 113, the raw water outlet hole 422 and the first water outlet 4220 and flows out; when filtered water is needed, rotate the handle 3 until the convex block 2112 abuts against the end of the clamping groove 116 away from the through groove 117, and the rotating shaft 2 rotates to the second extreme position. At this time, the first blocking portion blocks the first water outlet hole 113, and the second blocking portion opens the second water outlet hole 114. The water flowing in from the water inlet 4190 flows through the first water passing hole 112, the water outlet passage 20, the second water outlet hole 114, the water passing passage 120, the second water outlet hole 114, the water passing gap 50, the filter element 5, the filtered water outlet hole 4161 and the second water outlet 4160 and flows out.

[0101] During use, once water flows through the water passing passage 120, the controller 63 starts to record the usage time or usage water volume of the filter element 5. The controller 63 records the usage time or usage water volume of the filter element 5 each time and accumulates them. When the accumulated usage time or accumulated usage water volume of the filter element 5 reaches the preset time value or water volume value, the controller 63 controls the indicator light 64 to display the corresponding color.

[0102] In this application, the rotating shaft 2 directly establishes an axial limiting relationship with the main body 1 through rotational clamping, without the need to use an external structure for positioning. Since the structural strength and material stability of the main body 1 in the axial direction are good, the axial position of the rotating shaft 2 relative to the main body 1 is stable; the handle 3 is rotationally locked and inserted with the rotating shaft 2 along the first axis direction, and it can be operated by an external force and drive the rotating shaft 2 to rotate, improving the operation feel; the handle 3 forms an axial limit and prevents it from separating from the rotating shaft 2 through a plug-in fit with the housing 4 perpendicular to the first axis; the abutting block 311 on the handle 3 can abut against the rotation limiting block 115 when the handle 3 rotates and limit the rotating shaft 2 from exiting the rotational clamping relationship with the main body 1, making the connection relationship between the rotating shaft 2 and the main body 1 stable and reliable. That is, in the valve control device of this embodiment, the valve core is directly axially limited and connected to the valve seat. On the one hand, it eliminates the use of external structures such as valve shells or end covers, and the structure is simpler, and the production cost and installation cost of the product are lower; on the other hand, due to the good structural stability of the valve seat shaft, the position of the valve core relative to the valve seat is stable and reliable, which can ensure that the valve control device has a reliable function of opening, closing or switching the passage.

[0103] The water purification faucet 100 has a function of switching between raw water outlet and filtered water outlet, with a simple structure, low manufacturing cost, strong applicability, and can meet people's cleaning needs; in actual use, if raw water is needed for cleaning, the user can rotate the rotating shaft 2 to a state where the first blocking portion opens the first water outlet hole 113 and the second blocking portion blocks the second water outlet hole 114. At this time, the water flow flowing in from the water inlet 4190 sequentially flows out through the first water passing hole 112, the water outlet channel 20, the first water outlet hole 113, and the first water outlet 4220; if filtered water is needed, the user can rotate the switching component to a state where the first blocking portion blocks the first water outlet hole 113 and the second blocking portion opens the second water outlet hole 114. At this time, the water flow flowing in from the water inlet 4190 sequentially flows into the filter element 5 through the first water passing hole 112, the water outlet channel 20, and the second water outlet hole 114, and flows out from the second water outlet 4160 after being filtered by the filter element 5.

[0104] The above description of the specification and embodiments is used to explain the protection scope of the present application, but does not constitute a limitation on the protection scope of the present application.

Claims

1. A rotational connection structure, characterized by comprising: A body, which is provided with a shaft hole having a first axis as its axis and opening at an end face, and a rotational limit block; A rotating shaft, which is inserted into the shaft hole and rotatably clamped with the body. The rotational clamping means that after the rotating shaft and the body are inserted and rotated, they are clamped to achieve an axial limiting relationship with each other, and the rotating shaft and the body are adapted to withdraw from the clamping relationship by reverse rotation; A handle, which is non-rotatably inserted along the first axis direction with the rotating shaft, and an abutting block is provided on its outer wall; the abutting block is configured to limit the rotating shaft from withdrawing from the rotational clamping when the handle drives the rotating shaft by abutting against the rotational limit block; A housing, which is fixedly connected to the body and is inserted and cooperated with the handle in a relatively rotatable manner along a direction perpendicular to the first axis.

2. The rotational connection structure according to claim 1, characterized in that, The hole wall of the shaft hole is provided with a clamping groove and a through groove; the clamping groove extends circumferentially; the through groove extends along the first axis direction, and one end thereof communicates with the clamping groove, and the other end communicates with the end face of the body having an opening; a convex block is provided on the outer wall of the rotating shaft; the convex block enters the clamping groove through the through groove and forms the rotational clamping after rotation.

3. The rotational connection structure according to claim 1, characterized in that, The handle is inserted into the rotating shaft from the end of the body having the opening of the shaft hole; the rotational limit block is provided on the end face of the body having the opening of the shaft hole.

4. A valve control device, characterized in that, Including the rotational connection structure according to any one of claims 1 to 3; the body constitutes a valve seat; the rotating shaft constitutes a valve core, and when it is clamped with the body, it is adapted to rotate relative to the body and realize the opening, closing or switching of the passage.

5. A water purification faucet, characterized in that, It adopts the valve control device according to claim 4.

6. The water purification faucet according to claim 5, characterized in that, The housing is provided with a water inlet, a first water outlet and a second water outlet; the water inlet is communicated with an external water source; The body is provided with a first water passing hole, a first water outlet hole and a second water outlet hole; one ends of the first water passing hole, the first water outlet hole and the second water outlet hole are respectively communicated with the water inlet, the first water outlet and the second water outlet, and the other ends thereof all extend to the hole wall of the shaft hole; A water outlet passage communicating with the first water passing hole is defined between the outer wall of the rotating shaft and the hole wall of the shaft hole; the rotating shaft is further provided with a first blocking portion and a second blocking portion; both the first blocking portion and the second blocking portion are located in the water outlet passage and correspond to the first water outlet hole and the second water outlet hole respectively; When the rotating shaft rotates to the first extreme limit position, the first blocking portion blocks the first water outlet hole, and the second blocking portion opens the second water outlet hole; when the rotating shaft rotates to the second extreme limit position, the first blocking portion opens the first water outlet hole, and the second blocking portion blocks the second water outlet hole.

7. The water purification faucet according to claim 6, characterized in that, The rotating shaft includes a shaft body, two blocking members and two first elastic members; The shaft body is rotatably clamped with the body and cooperates with the hole wall of the shaft hole to form the water outlet passage, and two assembly grooves are provided on its outer wall; The two blocking members are respectively slidably arranged in the two assembly grooves and respectively constitute the first blocking portion and the second blocking portion; The two first elastic members are respectively located in the two assembly grooves, and two ends of each first elastic member respectively abut against the blocking member and the bottom of the assembly groove.

8. The water purification faucet according to claim 7, characterized in that, The plugging member is in sealing fit with the assembly groove; The shaft body is further provided with a water passage; the water inlet end of the water passage communicates with the water outlet passage, and its water outlet end has two and extends to the bottoms of the two assembly grooves respectively.

9. The water purification faucet according to claim 6, characterized in that, It further includes a filter element; The filter element is installed in the housing, its water inlet end communicates with the second water outlet hole, and its water outlet end communicates with the second water outlet.

10. The water purification faucet according to claim 9, characterized in that, It further includes a life monitoring unit; The main body is further provided with a water passage; the two ends of the water passage communicate with the water outlet end of the second water outlet hole and the water inlet end of the filter element respectively; The life monitoring unit includes an impeller, a first magnet, a first sensor, an indicator light and a controller; the impeller is rotatably connected in the water passage and is driven to rotate by the water flow; the first magnet is fixedly installed on one of the blades of the impeller and is driven to rotate by the water flow flowing into the water passage; the first sensor is installed on the main body and is used to sense the first magnet and output a pulse signal; The indicator light is installed on the housing; the controller is electrically connected to the first sensor and the indicator light, and is used to receive the pulse signal and calculate the cumulative use time or cumulative water flow of the filter element according to the pulse signal, and is also used to judge the service life of the filter element by comparing the cumulative use time or cumulative water flow with the preset time value or flow value therein, and control the indicator light to display a color according to the judgment result.

11. A water purification faucet according to claim 10, characterized in that, It further includes a position detection unit; the position detection unit includes a moving member, a second magnet, a second sensor and a second elastic member; The housing is provided with a receiving cavity and a positioning groove; the cavity wall of the receiving cavity is provided with a stepped surface; the open end of the positioning groove is arranged on the stepped surface; the filter element is installed in the receiving cavity and one end abuts against the stepped surface; The moving member slides in the positioning groove; the second magnet is fixedly connected to the moving member; the second sensor is installed on the main body and is electrically connected to the controller; the second elastic member is located in the positioning groove, and its two ends respectively abut against the bottom of the positioning groove and the moving member; When the filter element is not installed, the moving member protrudes from the open end of the positioning groove, and the second magnet is in inductive cooperation with the second sensor and outputs an inductive signal; when the filter element is installed, the moving member is abutted by the filter element and retracts into the positioning groove; the second magnet is staggered from the second sensor; The controller is further used to receive the inductive signal and control the indicator light to display a color.

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