Recyclable intelligent valve of shower head and control method

Abstract

The invention belongs to the technical field of shower head valves, and discloses a recyclable intelligent valve of a shower head and a control method.The recyclable intelligent valve comprises a cold water inlet A, a hot water inlet B and a water outlet E. The cold water inlet A is connected with a PPR water supply pipe A1, and the PPR water supply pipe A1 is connected with a cold water source; the hot water inlet B is connected with a PPR water supply pipe B1, and the PPR water supply pipe B1 is connected with a hot water source; the middle of the PPR water supply pipe B1 is connected with a PPR water supply pipe B2 through a tee joint, the PPR water supply pipe B2 is connected with a hot water source, one part of inlet water of the PPR water supply pipe B1 enters the valve body set, the other part of inlet water of the PPR water supply pipe B1 flows back to the hot water source through the PPR water supply pipe B2, a water outlet E is connected with a PVC water drainage pipe E1, and the PVC water drainage pipe E1 is connected to an S-bend water seal and used for supplementing water to the S-bend water seal. According to the invention, the recycling of the stored cold water is realized, and meanwhile, the water supply pipeline PPR is effectively communicated with the water drainage pipeline PVC, so that the stored cold water can be secondarily utilized.

Description

Technical Field

[0001] The present invention belongs to the technical field of shower valves, and particularly relates to a recyclable intelligent valve for a shower head and a control method thereof. Background Art

[0002] Before taking a shower, it is necessary to drain the cold water in the shower head. If the pipeline is too long, water resources will be wasted during the process of draining the cold water. And during the drainage process, the body needs to be used to detect the water temperature. Although there are thermostatic valve cores and digital displays recently, when turning on the switch, it is still necessary to constantly pay attention to the change of the water temperature and the temperature value on the display screen. When the appropriate shower temperature is reached, it is necessary to manually close the valve, which wastes time and the temperature is difficult to accurately control. Most of the cold water drained from the shower head is discharged as waste water, and the discharged water will flow into the sewer pipe through the floor drain, and most of it is discharged as domestic waste water and cannot be reused, wasting water resources. In other areas of the bathroom, such as floor drains and washbasins, water seals are used for odor prevention. If not used for a long time and the drain pipe water seal is not regularly filled or forgotten to be filled, the S-bend in the drain pipe will fail because there is no water seal, and the odor inside the pipe will enter the room. How to use the cold water drained from the shower head to supplement the water seal in other areas and realize the secondary recycling of cold water, and how to interconnect the water supply module and the drainage module will become urgent problems to be solved in the future. Summary of the Invention

[0003] The purpose of the present invention is to provide a recyclable intelligent valve for a shower head and a control method thereof to solve the above technical problems.

[0004] To solve the above technical problems, the specific technical solutions of a recyclable intelligent valve for a shower head and a control method thereof of the present invention are as follows: A recyclable intelligent valve for a shower head includes a housing, on which a plurality of valve body groups are installed. The housing and the valve body groups are embedded inside the wall. The valve body group includes a cold water inlet and a hot water inlet. The cold water inlet is connected to a PPR water supply pipe, and the PPR water supply pipe is connected to a cold water water source; the hot water inlet is connected to a PPR water supply pipe, and the PPR water supply pipe is connected to a hot water water source; the middle of the PPR water supply pipe is connected to a PPR water supply pipe through a tee joint, and the PPR water supply pipe is connected to a hot water water source. A part of the water inlet of the PPR water supply pipe enters the inside of the valve body group, and the other part flows back to the hot water water source through the PPR water supply pipe. The valve body group further includes a drain port, and the drain port is connected to a PVC drain pipe, and the PVC drain pipe E is connected to the S-bend water seal for replenishing water to the S-bend water seal.

[0005] Further, the valve body group further includes a first mixed water outlet, a second mixed water outlet, and a third mixed water outlet. The first mixed water outlet is connected to a PPR water outlet pipe, and the PPR water outlet pipe is connected to an overhead shower. The second mixed water outlet is connected to a PPR water outlet pipe, and the PPR water outlet pipe is connected to a handheld shower. The third mixed water outlet is connected to a back spray, and the back spray is used for showering the back.

[0006] Further, inside the housing, there is a control group, a generator set, a temperature sensing group, a water distribution group, and a solenoid valve group connected in sequence. On the surface of the housing, there is a decorative panel, and the decorative panel is arranged on the wall surface.

[0007] Further, the control group is connected to the cold water inlet and the hot water inlet, and includes a flow rate adjustment group, a constant temperature group, and a central controller arranged inside. The flow rate adjustment group is used to control the water output flow rate; the constant temperature group is used to control the water output temperature.

[0008] Further, the generator set includes a fixing plate, a generator, and a generator housing. The temperature sensing group includes a Hall element and an impeller. The generator is fixed inside the generator housing. The impeller is arranged on one side of the generator, and the Hall element is located on one side of the impeller and is fixed by the fixing plate. The impeller is driven to rotate by the impact force of water, driving the generator to work, and the generator is used to supply power to the solenoid valve group.

[0009] Further, the water distribution group includes an adjustable valve rod, a water distribution valve, and a water distribution valve housing. The adjustable valve rod and the water distribution valve are fixed on the water distribution valve housing, and are connected to the first mixed water outlet, the second mixed water outlet, the drain port, and the third mixed water outlet to divide the water and output it through different outlets. The adjustable valve rod is used to adjust the opening and closing of the water output.

[0010] Further, the solenoid valve group includes a quick-opening valve, a solenoid valve, and a solenoid valve housing. The quick-opening valve is arranged at the front end of the solenoid valve, and the solenoid valve is installed on the upper part of the solenoid valve housing. There is a back spray water outlet pipe between the quick-opening valve and the solenoid valve. The quick-opening valve is used to disconnect the water outlet pipeline after the solenoid valve fails.

[0011] Further, the drain port is connected to a PPR to PVC group, and the PPR to PVC group includes a PVC joint, a PPR joint, and an adapter. The PPR joint is fixedly connected to the PPR water outlet pipe at the drain port E of the valve body group by hot melt welding. One end of the PVC joint is connected to the PPR joint through the adapter, and the other end of the PVC joint is connected to the PVC drain pipe through PVC glue.

[0012] Further, the surface of the decorative panel is provided with a detachable face cover, a back spray water outlet, a rain shower switch, a back spray switch, a hand shower switch, a cold water pre-drain switch, a flow rate adjustment group hole position, a constant temperature group hole position, and a rock slab. The detachable face cover is aligned with the solenoid valve group for disassembly and maintenance of the solenoid valve group. The back spray water outlet is connected to a back spray water pipe. The rain shower switch, the back spray switch, and the hand shower switch are respectively connected to three water distribution valves of the water distribution group to control the rain shower, the back spray water outlet, and the hand shower. The rock slab is fixedly installed on one side of the decorative panel, and is provided with a flow rate adjustment group hole position, a constant temperature group hole position, a cold water pre-drain switch, and a temperature display screen. The cold water pre-drain switch is connected to the central controller to control the hot water inlet to discharge water to the drain outlet. The flow rate adjustment group hole position is used to expose the knob of the flow rate adjustment group. The constant temperature group hole position is used to expose the knob of the constant temperature group. The temperature display screen is used to display the water outlet temperature.

[0013] The present invention also discloses a control method for a recyclable intelligent valve of a shower head, comprising the following steps: Step 1: Before taking a shower, press the cold water pre-drain switch once to trigger. The central controller receives the instruction, the hot water source is turned on, and part of the cold water inside the valve body and the pipeline and the residual cold water in the PPR water supply pipe circulates back to the hot water source through the PPR water supply pipe; part of it passes through the constant temperature group and then through the flow rate adjustment group; Step 2: Rotate the knobs of the constant temperature group and the flow rate adjustment group to set the target temperature and the water outlet flow rate; Step 3: The pre-drained cold water drives the impeller of the generator to rotate and generate electricity to supply power to the solenoid valve group. Then it passes through the Hall element for water flow identification, and then enters the quick-opening valve and reaches the solenoid valve area; Step 4: The Hall element receives the instruction and feeds it back to the central controller, and automatically opens the solenoid valve. The pre-drained cold water flows out from the outlet of the solenoid valve; Step 5: The cold water enters the PPR to PVC group from the outlet of the solenoid valve and then flows out through the PVC drain pipe E and enters the S-bend water seal; Step 6: The temperature display shows the current temperature. When the pre-drained cold water reaches the predetermined water temperature, the Hall element automatically senses and feeds it back to the central controller, and the central controller controls the solenoid valve group to close and stop the pre-draining of cold water; Step 7: At this time, turn on the rain shower switch, the back spray switch, or the hand shower switch to directly discharge hot water, and the water outlet temperature is the set temperature.

[0014] The recyclable intelligent valve and control method of a shower head of the present invention have the following advantages: A recyclable intelligent valve of a shower head of the present invention is provided with a circulation pipeline at the output end of the hot water source, realizing the recycling of cold water storage. At the same time, the PPR water supply pipeline and the PVC drainage pipeline are effectively connected, enabling the non-renewable water resources coming out of the valve to be replenished by water seal and reused, effectively preventing the odor from entering the room. The device has a simple structure, convenient operation, convenient installation and maintenance, high safety, saves water resources, improves water utilization rate, and at the same time improves the user's shower waiting time and the user's water use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Overall pipe connection schematic diagram of the recyclable intelligent valve of the shower head of the present invention; Figure 2 Schematic diagram of the water flow direction of the valve body group of the recyclable intelligent valve of the shower head of the present invention; Figure 3 Schematic diagram of the water flow direction of the overall pipe connection of the recyclable intelligent valve of the shower head of the present invention; Figure 4 Schematic diagram of the water flow direction inside the valve body of the recyclable intelligent valve of the shower head of the present invention; Figure 5 Internal structure schematic diagram of the recyclable intelligent valve of the shower head of the present invention; Figure 6 Exploded schematic diagram of the recyclable intelligent valve of the shower head of the present invention; Figure 7 Schematic diagram of the structure of the PPR to PVC group of the present invention; Figure 8 Schematic diagram of the panel of the recyclable intelligent valve of the shower head of the present invention; Figure 9 Schematic diagram of the working principle of the water seal of the water replenishment method of the present invention; Figure 10 Simulation diagram of the connection between the water replenishment method of the present invention and the PVC drainage pipe; Figure 11 Drainage direction diagram of the water replenishment method of the present invention and the PVC drainage pipe; Description of the markings in the figure: 1. Housing; 2. Control group; 201. Flow regulation group; 202. Constant temperature group; 3. Generator set; 301. Fixed plate; 302. Generator; 303. Generator housing; 4. Temperature sensing group; 401. Hall element; 402. Impeller; 5. Water distribution group; 501. Adjustable valve stem; 502. Water distribution valve; 503. Water distribution valve housing; 6. Valve body group; 7. Solenoid valve group; 701. Quick-opening valve; 702. Solenoid valve; 703. Solenoid valve housing; 704. Back spray water outlet pipe; 8. PPR to PVC conversion group; 801. PVC joint; 802. PPR joint; 803. Adapter; 9. Decorative panel; 91. Removable face cover; 92. Back spray water outlet; 93. Overhead shower switch; 94. Back spray switch; 95. Handheld switch; 96. Cold water pre-discharge switch; 97. Flow regulation group hole position; 98. Constant temperature group hole position; 99. Rock slab; A. Cold water inlet; B. Hot water inlet; C. First mixed water outlet; D. Second mixed water outlet; E. Drainage port; F. Third mixed water outlet; A1 / B1 / B2. PPR water supply pipe; C1 / D1. PPR water outlet pipe; E1. PVC drain pipe; N. Integrated intelligent valve; N1. Shower floor drain; N2. Toilet floor drain; N3. Washbasin floor drain; S. Trap; L1. Vertical drain pipe; L2. Horizontal drain pipe. Detailed implementation mode

[0016] In order to better understand the purpose, structure and function of the present invention, the following further describes in detail a recyclable intelligent valve and control method for a shower head of the present invention with reference to the accompanying drawings.

[0017] As Figures 1-4 shown, a recyclable intelligent valve for a shower head of the present invention includes a housing 1, on which a plurality of valve body groups 6 are installed. The housing 1 and the valve body groups 6 are embedded inside the wall. The valve body group 6 includes a cold water inlet A, a hot water inlet B, a first mixed water outlet C, a second mixed water outlet D, a drainage port E and a third mixed water outlet F. The valve body group 6 is connected to several PPR water supply pipes, PPR water outlet pipes and PVC drain pipes. Among them, the cold water inlet A is connected to a PPR water supply pipe A1, and the PPR water supply pipe A1 is connected to a cold water source; the hot water inlet B is connected to a PPR water supply pipe B1, and the PPR water supply pipe B1 is connected to a hot water source; the middle of the PPR water supply pipe B1 is connected to a PPR water supply pipe B2 through a tee, and the PPR water supply pipe B2 is connected to the hot water source. Part of the water inlet of the PPR water supply pipe B1 enters the inside of the valve body group 6, and the other part flows back to the hot water source through the PPR water supply pipe B2, realizing circulation in the entire pipeline, so that the stored water (cold water after hot water cools) in the pipeline can be recycled. The first mixed water outlet C is connected to a PPR water outlet pipe C1, and the PPR water outlet pipe C1 is connected to a handheld shower head; the second mixed water outlet D is connected to a PPR water outlet pipe D1, and the PPR water outlet pipe D1 is connected to an overhead shower head; the third mixed water outlet F is connected to a back spray, and the back spray is used for back shower. AsFigures 9-11 As shown, a drain outlet E is connected to a PVC drain pipe E1, and the PVC drain pipe E1 is connected to the S-trap water seal in other areas of the bathroom, that is, the water seal, which is used to replenish water to the S-trap water seal to prevent the odor in the pipe from overflowing.

[0018] Furthermore, the S-trap water seal can be the water trap connecting the floor drain under the faucet of the dry area sink, or the water trap connecting the floor drain under the dry area toilet, or the water trap connecting the floor drain under the shower or the water trap connecting the floor drain under the kitchen; combined Figure 10 As shown, the intelligent valve is connected to the PVC drain pipe E1 through the drain outlet E, and then it combines with the shower floor drain N1, the toilet floor drain N2, and the sink floor drain N3, and respectively enters the horizontal drain pipe L2 through the water trap S and finally enters the vertical drain pipe L1.

[0019] The illustration of the present invention is a simulation diagram of the actual pipe connection of an embodiment. It should be understood that the drawings only show a part of the examples of the present invention, rather than all the examples. The installation direction and installation position of the pipeline can be adjusted according to the actual environment. Further, based on the simulation diagram of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present invention. Therefore, the illustration should not be regarded as a limitation of the scope.

[0020] As Figure 5 As shown, inside the housing 1, there are a control group 2, a generator set 3, a temperature sensing group 4, a water distribution group 5, and a solenoid valve group 7 connected in sequence. On the surface of the housing 1, there is a decorative panel 9, and the decorative panel 9 is arranged on the wall surface.

[0021] As Figure 6 As shown, the control group 2 is connected to the cold water inlet A and the hot water inlet B, and includes a flow regulating group 201, a constant temperature group 202, and a central controller arranged inside. The flow regulating group 201 is used to control the water outlet flow to avoid excessive impact force on the body caused by too high water pressure; the constant temperature group 202 is used to control the water outlet temperature.

[0022] The generator set 3 includes a fixing plate 301, a generator 302, and a generator housing 303. The temperature sensing group 4 includes a Hall element 401 and an impeller 402. The generator 302 is fixed inside the generator housing 303. The impeller 402 is arranged on one side of the generator 302, and the Hall element 401 is located on one side of the impeller 402 and is fixed by the fixing plate 301. The impeller 402 is driven to rotate by the impact force of water, driving the generator 302 to work. The generator 302 is used to supply power to the solenoid valve group 7, and the solenoid valve group 7 can be controlled to work without connecting to an external power source, avoiding the failure of the solenoid valve group 7 caused by power failure and resulting in accidental water discharge.

[0023] The water distribution group 5 includes an adjustable valve stem 501, a water distribution valve 502, and a water distribution valve housing 503. The adjustable valve stem 501 and the water distribution valve 502 are fixed on the water distribution valve housing 503, connecting the first mixed water outlet C, the second mixed water outlet D, the drain outlet E, and the third mixed water outlet F to divert water and output it through different outlets. The adjustable valve stem 501 is used to adjust the opening and closing of the water outlet.

[0024] The solenoid valve group 7 includes a quick-opening valve 701, a solenoid valve 702, and a solenoid valve housing 703. The quick-opening valve 701 is arranged at the front end of the solenoid valve 702. The solenoid valve 702 is installed on the upper part of the solenoid valve housing 703. A back spray water pipe 704 is provided between the quick-opening valve 701 and the solenoid valve 702. The quick-opening valve 701 is used to quickly disconnect the water outlet pipeline after the solenoid valve 702 fails, preventing the water in the pipeline from entering the room and causing property losses to users. In the traditional shower head, the solenoid valve device is installed at the front end of the shower. When the solenoid valve device fails, the entire shower head fails, and it is very difficult to repair and replace, bringing property losses to users. The solenoid valve group 7 of the present invention is arranged inside the intelligent valve, which is convenient for replacement and maintenance.

[0025] The stored water inside the valve and inside the pipeline passes through the constant temperature group 202, then through the flow rate adjustment group 201, and then drives the impeller 402 to rotate and generate electricity by the generator 302. After that, it passes through the Hall element 401 for water flow identification, and then enters the quick-opening valve 701 and reaches the solenoid valve 702 area. The Hall element 401 receives the instruction and feeds back to the central controller and automatically opens the solenoid valve 702, and the stored water flows out from the outlet of the solenoid valve 702; when the pre-discharged cold water reaches the predetermined water temperature, the Hall element 401 will automatically sense and feed back to the central controller, and the central controller controls the solenoid valve group 7 to close and stop the pre-discharge of cold water.

[0026] The components inside the housing 1 are independently designed, which is convenient for maintenance; the whole intelligent valve is more compact, has a lower cost, and stronger interchangeability.

[0027] The conventional pre-embedded shower head port can only be connected to the PPR water supply pipe and has no connection with other drainage pipe fittings, resulting in that the shower head can only be used for showering, and the water from the shower can only flow into the drainage pipeline and cannot be recycled. The intelligent valve of the present invention is provided with a drain outlet E, and the drain outlet E is connected with a PPR to PVC group 8, as Figure 7As shown in the figure, the PPR-to-PVC assembly 8 includes a PVC joint 801, a PPR joint 802, and an adapter 803. These three components are fabricated using specialized equipment. The PPR joint 802 is fixedly connected to the PPR outlet pipe at the drain outlet E of the valve body assembly 6 through hot melt welding. One end of the PVC joint 801 is fixedly connected to the PPR joint 802 through the adapter 803, and the other end of the PVC joint 801 is fixedly connected to the PVC drain pipe E1 through PVC glue. Further, the valve of the present invention perfectly combines the PPR outlet pipe at the shower head drain outlet E with the PVC drain pipe E1 at the water seal of the S trap through the PPR-to-PVC assembly 8, endowing the shower head with new functionality and enabling the reuse of water resources.

[0028] As Figure 8 shown in the figure, the decorative panel 9 has a detachable face cover 91, a back spray water outlet 92, an overhead shower switch 93, a back spray switch 94, a hand-held shower switch 95, a pre-drain cold water switch 96, a flow control group hole position 97, a thermostatic group hole position 98, and a rock slab 99. The detachable face cover 91 is aligned with the solenoid valve group 7 for disassembly and repair of the solenoid valve group 7. The back spray water outlet 92 is connected to the back spray outlet pipe 704. Preferably, the angle of the back spray water outlet 92 is adjustable to adapt to users of different heights. The setting of the back spray can clean the back without removing the hand-held shower, increasing practicality. The overhead shower switch 93, the back spray switch 94, and the hand-held shower switch 95 are respectively connected to the three water distribution valves 502 of the water distribution group to control the overhead shower, the hand-held shower, and the back spray water outlet. The rock slab 99 is fixedly installed on one side of the decorative panel 9, and is provided with a flow control group hole position 97, a thermostatic group hole position 98, a pre-drain cold water switch 96, and a temperature display screen. The pre-drain cold water switch 96 is connected to the central controller to control the hot water inlet B to discharge water and reach the drain outlet E. The flow control group hole position 97 is used to expose the knob of the flow control group 201. The thermostatic group hole position 98 is used to expose the knob of the thermostatic group 202. The temperature display screen is used to display the outlet water temperature.

[0029] A control method for a recyclable intelligent valve of a shower head according to the present invention includes the following steps: Step 1: Before taking a shower, press the pre-drain cold water switch 96 with one key. The central controller receives the instruction, the hot water source is turned on, and part of the cold water inside the valve body and the pipeline and the residual cold water in the PPR water supply pipe B1 circulates back to the hot water source through the PPR water supply pipe B2; part passes through the thermostatic group 202 and then through the flow control group 201. Step 2: Set the target temperature and the outlet water flow by rotating the knobs of the thermostatic group 202 and the flow control group 201. Step 3: The pre-drained cold water drives the impeller 402 to rotate and generate electricity through the generator 302, supplies power to the solenoid valve group 7, then passes through the Hall element 401 for water flow identification, and then enters the quick-opening valve 701 and reaches the solenoid valve 702 area. Step 4: The Hall element 401 receives the instruction and feeds it back to the central controller, and automatically opens the solenoid valve 702. The pre-drained cold water flows out from the outlet of the solenoid valve 702. Step 5: The cold water enters the PPR to PVC group 8 from the outlet of the solenoid valve 702, and then flows out through the PVC drain pipe E1 and enters the S-bend water seal in the dry area to prevent the odor in the anti-odor pipe from overflowing. Step 6: The temperature display shows the current temperature. When the pre-drained cold water reaches the predetermined water temperature, the Hall element 401 will automatically sense and feed it back to the central controller, and the central controller controls the solenoid valve group 7 to close and stop pre-draining cold water. Step 7: At this time, turning on the overhead shower switch 93, the back spray switch 94 or the handheld switch 95 can directly discharge hot water, and the temperature of the discharged water is the set temperature, and you can take a shower directly without waiting any longer, nor does anyone need to pay attention to the water temperature and test the water temperature. One-key activation of pre-draining cold water has high control stability, simple operation, no need to wait for hot water, and hot water can be enjoyed immediately. It truly achieves that hot water comes on as soon as it is turned on. For example, in a 120-square-meter house with a family of three, 12 tons of water waste can be saved every year, and at the same time, 5 minutes can be saved every day, 1825 minutes can be saved every year, improving the water use comfort while avoiding water resource waste and shower waiting time, bringing convenience to users.

[0030] At the same time, the present invention can also drain cold water regularly according to the needs of users. For example, it can automatically inject water into the S-bend water seal every half month or longer to prevent the water seal from drying up. The present invention can not only meet the requirements of showering, but also regularly replenish the water seal in the drainage pipe to prevent odor from entering the room.

[0031] The parts connected to the upper part of the valve body group described in the present invention can all be freely disassembled and repaired, and all have a detachable screw design, which greatly facilitates later maintenance. If a certain module fails later, there is no need to break the wall and take out the valve body group, and it can be directly repaired. Further, the valve body group is an integrated waterway design, making the entire valve body group more compact, with lower cost and stronger interchangeability.

[0032] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A recyclable intelligent valve for a shower head, comprising a housing (1), a plurality of valve body groups (6) being mounted on the housing (1), the housing (1) and the valve body groups (6) being pre-buried inside a wall, the valve body groups (6) comprising a cold water inlet (A) and a hot water inlet (B), the cold water inlet (A) being connected to a PPR water supply pipe (A1), the PPR water supply pipe (A1) being connected to a cold water source; the hot water inlet (B) being connected to a PPR water supply pipe (B1), the PPR water supply pipe (B1) being connected to a hot water source; characterized in that: The middle of the PPR water supply pipe (B1) is connected to a PPR water supply pipe (B2) via a tee, and the PPR water supply pipe (B2) is connected to a hot water source. A portion of the water entering the PPR water supply pipe (B1) enters the interior of the valve body group (6), and the other portion flows back to the hot water source via the PPR water supply pipe (B2). The valve body group (6) further comprises a drain port (E), and the drain port (E) is connected to a PVC drain pipe (E1). The PVC drain pipe (E1) is connected to an S-bend water seal and is used to replenish water to the S-bend water seal.

2. The recyclable intelligent valve for shower head according to claim 1, characterized in that: The valve body group (6) further comprises a mixing water outlet 1 (C), a mixing water outlet 2 (D) and a mixing water outlet 3 (F); the mixing water outlet 1 (C) is connected to a PPR water outlet pipe (C1), and the PPR water outlet pipe (C1) is connected to a hand-held shower; the mixing water outlet 2 (D) is connected to a PPR water outlet pipe (D1), and the PPR water outlet pipe (D1) is connected to a top shower; the mixing water outlet 3 (F) is connected to a back spray; and the back spray is used for back showering.

3. The recyclable intelligent valve for shower head according to claim 1, characterized in that: The housing (1) contains a control group (2), a generator group (3), a temperature sensing group (4), a water distribution group (5) and a solenoid valve group (7) which are connected in sequence, and a decorative panel (9) is provided on the surface of the housing (1), wherein the decorative panel (9) is arranged on the surface of a wall.

4. The recyclable intelligent valve for shower head according to claim 3, characterized in that: The control group (2) is connected to the cold water inlet (A) and the hot water inlet (B), and comprises a flow rate regulating group (201) and a constant temperature group (202) as well as a central controller arranged inside, wherein the flow rate regulating group (201) is used to control the water outlet flow rate; and the constant temperature group (202) is used to control the water outlet temperature.

5. The recyclable intelligent valve for shower head according to claim 3, characterized in that: The generator set (3) comprises a fixing plate (301), a generator (302) and a generator housing (303); the temperature sensing group (4) comprises a Hall element (401) and an impeller (402); the generator (302) is fixed in the generator housing (303); the impeller (402) is arranged on one side of the generator (302); the Hall element (401) is located on one side of the impeller (402) and is fixed by the fixing plate (301); the impeller (402) is driven to rotate by the impact force of water to drive the generator (302) to work; the generator (302) is used to supply power to the electromagnetic valve group (7).

6. The recyclable intelligent valve for shower head according to claim 4, characterized in that: The water diversion group (5) comprises an adjustable valve stem (501), a water diversion valve (502) and a water diversion valve housing (503); the adjustable valve stem (501) and the water diversion valve (502) are fixed to the water diversion valve housing (503), connected to a mixed water outlet 1 (C), a mixed water outlet 2 (D), a drain outlet (E) and a mixed water outlet 3 (F), and divert water to be output through different outlets; the adjustable valve stem (501) is used to adjust the opening and closing of the water outlet.

7. The recyclable intelligent valve for shower head according to claim 6, characterized in that: The solenoid valve assembly (7) comprises a quick-opening valve (701), a solenoid valve (702) and a solenoid valve housing (703); the quick-opening valve (701) is arranged at the front end of the solenoid valve (702); the solenoid valve (702) is installed on the upper part of the solenoid valve housing (703); a back-spray water outlet pipe (704) is arranged between the quick-opening valve (701) and the solenoid valve (702); the quick-opening valve (701) is used to disconnect the water outlet pipe after the solenoid valve (702) fails.

8. The recyclable intelligent valve for shower head according to claim 3, characterized in that: The drain outlet E is connected to a PPR to PVC group (8), the PPR to PVC group (8) comprising a PVC joint (801), a PPR joint (802) and an adapter (803), the PPR joint (802) being fixedly connected to the PPR outlet pipe at the drain outlet E of the valve body group (6) by hot-melt welding, one end of the PVC joint (801) being connected to the PPR joint (802) by the adapter (803), and the other end of the PVC joint (801) being connected to the PVC drain pipe (E1) by PVC glue.

9. The recyclable intelligent valve for shower head according to claim 7, characterized in that: The surface of the decorative plate (9) comprises a detachable surface cover (91), a back spray outlet (92), a top spray switch (93), a back spray switch (94), a handheld switch (95), a pre-drain cold water switch (96), a flow rate adjustment group hole position (97), a constant temperature group hole position (98) and a rock plate (99); the detachable surface cover (91) is aligned with the solenoid valve group (7) and is used for disassembly and maintenance of the solenoid valve group (7); the back spray outlet (92) is connected to the back spray outlet pipe (704); the top spray switch (93), the back spray switch (94) and the handheld switch (95) are respectively connected to the three water distribution valves (504) of the water distribution group (5). 2), used to control the top spray shower, back spray water, and hand-held shower; the rock plate (99) is fixedly mounted on one side of the decorative plate (9), and is provided with a flow adjustment group hole (97), a constant temperature group hole (98), a pre-drain cold water switch (96), and a temperature display screen; the pre-drain cold water switch (96) is connected to the central controller and is used to control the hot water inlet (B) to discharge water and reach the drain outlet (E); the flow adjustment group hole (97) is used to expose the knob of the flow adjustment group (201); the constant temperature group hole (98) is used to expose the knob of the constant temperature group (202); and the temperature display screen is used to display the water temperature.

10. A method for controlling a recyclable intelligent valve of a shower head according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Before taking a shower, the pre-drain cold water switch (96) is turned on by one button. The central controller receives the command, and the hot water source is turned on. A portion of the cold water inside the valve body and the pipe and the residual cold water in the PPR water supply pipe (B1) are circulated back to the hot water source through the PPR water supply pipe (B2); a portion of the cold water passes through the constant temperature group (202) and then passes through the flow adjustment group (201); Step 2: Set the target temperature and water flow rate by rotating the knobs of the constant temperature group (202) and the flow rate adjustment group (201); Step 3: The pre-discharged cold water passes through the generator (302) to drive the impeller (402) to rotate and generate electricity, and then supplies power to the solenoid valve group (7). The water flow is then identified by the Hall element (401), and then the water enters the quick-opening valve (701) and reaches the solenoid valve (702) area. Step 4: The Hall element (401) receives the instruction and feeds it back to the central controller to automatically open the solenoid valve (702), and the pre-drained cold water flows out from the outlet of the solenoid valve (702); Step 5: The cold water enters the PPR to PVC group (8) from the outlet of the solenoid valve (702) and then flows out through the PVC drain pipe E and enters the S-bend water seal; Step 6: The temperature display shows the current temperature. When the pre-drained cold water reaches the predetermined water temperature, the Hall element (401) automatically senses and feeds back to the central controller. The central controller controls the solenoid valve group (7) to close and stop pre-draining cold water. Step 7: At this time, the top spray switch (93), the back spray switch (94) or the handheld switch (95) can be turned on to directly discharge hot water, and the temperature of the discharged water is the set temperature.

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