CN204953161U - Intellectuality is shifted a spraying decoration and is spilt - Google Patents

Abstract

The utility model provides an intelligent gear-shifting top-spray shower head, which belongs to the technical field of shower equipment. The utility model solves the problem that the existing top-spray showers cannot be automatically shifted and the cost is high. The intelligent gear-shifting top-spray sprinkler comprises a casing with a water inlet on the upper side, several groups of water outlet holes are opened at the bottom of the casing, and the number of mutually independent water outlet cavities is the same as the number of groups of water outlet holes inside the casing, and several water outlets The cavity communicates with several groups of water outlet holes in one-to-one correspondence, and a pilot structure with a water inlet and several water outlets, a driver that can drive the pilot structure, an inductor, and a power supply unit that can supply power to the driver are fixed in the casing; the pilot structure The water inlet is connected to the water inlet of the shell, the number of water outlets is the same as that of the water outlet, and the two are connected in a one-to-one correspondence. The driving part can drive the pilot structure to switch and strobe one of the several water outlets according to the induction signal of the sensor. Multiple. The top spray shower head has the advantages of automatic control, convenient use, low cost and the like.

Description

Intelligent shift overhead shower

technical field

The utility model belongs to the technical field of shower equipment, and relates to a top-spray shower, in particular to an intelligent shift top-spray shower.

Background technique

The overhead shower is a shower device that is installed above the user's head and fixed on the wall, and provides water for the user to shower through the water outlet hole at the bottom. Because it does not need to be held, the water outlet angle and water outlet effect are good. It is widely used in various families, hotels and other places. The structure of the top-spray shower generally includes a casing with a water inlet and a water outlet. A water outlet panel is fixedly connected to the water outlet of the casing. There are several water outlet holes evenly distributed on the water outlet panel, and water is taken in from the water inlet of the top-spray shower. , and then the water comes out from several water outlet holes on the water outlet panel of the top sprayer.

The use of existing overhead showers is often a mechanical manual operation structure, such as turning the manual operation handle to switch the water outlet, or for an overhead shower that can switch between multiple gears to realize the switching of different water outlet styles, manual operation is required. Pull the shift lever at the shell of the top spray shower to realize the switch, the degree of automation is low, and the operation is inconvenient.

For this reason, people have designed a kind of intelligent water-saving shower top spray, and have applied for Chinese patent [its application number is: 201220395581.X; Its announcement number is: CN202778764U]; The connected face cover, the body includes a shell with a downward opening and a supporting shell, a number of LED lights are arranged on the outside of the face cover, and a solenoid valve is installed in the electrical storage cavity between the outside of the supporting shell and the inside of the shell to control the The circuit board for the action of the solenoid valve, the power supply unit and the infrared sensor for powering the circuit board and the LED lamp, and the spool of the solenoid valve can block the water flow channel. The intelligent water-saving shower top spray detects the human body through an infrared sensor. When the human body enters the shower range, the LED light flashes for a moment, and the solenoid valve opens the water flow channel, so that water can be sprayed from the shower head, realizing intelligent water saving.

Although the intelligent water-saving shower top spray can achieve intelligent control of the water outlet of the shower top spray through the setting of infrared sensors and solenoid valves, it is limited to the switch of controlling the water flow, which saves water and cannot switch between different water outlet styles. It satisfies people's demand for switching the spray water style from the shower top. In addition, because of the LED lights, infrared sensors, and solenoid valves installed on the top sprayer, it is inevitable to need an external power supply for power supply, which consumes a lot of energy and costs high.

Utility model content

The purpose of the utility model is to solve the above-mentioned problems existing in the prior art, and propose an intelligent shifting overhead shower with low use cost.

The purpose of this utility model can be achieved through the following technical solutions:

An intelligent gear-shifting overhead shower, comprising a shell with a water inlet on the upper side, several groups of water outlet holes are opened on the bottom of the shell, and the number of mutually independent water outlet cavities is the same as the number of groups of water outlet holes inside the shell. Each water outlet chamber communicates with several groups of water outlet holes in one-to-one correspondence, and it is characterized in that a pilot structure with a water inlet and several water outlets, a driver capable of driving the action of the pilot structure, an inductor and A power supply unit capable of supplying power to the above-mentioned driving parts, the water inlet end of the pilot structure communicates with the water inlet of the above-mentioned casing, the number of water outlet ends is the same as that of the above-mentioned water outlet chambers, and the two are connected in one-to-one correspondence, and the driving parts can According to the sensing signal of the sensor, the above-mentioned pilot structure is driven to switch and gate one or more of the several water outlets.

The intelligent gear-shifting top-spray shower receives the user's trigger signal through the sensor. According to the difference of the trigger signal, the driving part can drive the pilot structure to switch and select different water outlets, so as to realize the water outlet of different groups of water outlets. During this working process, because the driving part for switching the waterway is used in conjunction with the pilot structure, the driving force and driving power requirements for the driving part are greatly reduced when switching the waterway, and the power supply unit can only supply power for the driving part with a small current for stable driving. , without adding an external high-power power supply, reducing external energy consumption, reducing the cost of use and high reliability. Here, the structure and principle of the pilot structure can refer to the pilot structure in the existing pilot solenoid valve and other valve structures, which is a structure that uses a small amount to control a large amount. Using this working principle of the pilot structure is The driving part can realize a large amount of change only by controlling a small amount, which greatly reduces the requirements on the driving force and driving power of the driving part.

In the above-mentioned intelligent shifting overhead shower, the pilot structure includes a pressure control chamber, a spring, and a pressure control chamber that can be isolated from the water outlet chamber and connect the pressure control chamber to the water inlet end of the pilot structure. An isolated movable gasket, the gasket can be sealed against the port of the water inlet end of the water outlet chamber under the elastic force of the above spring and the water pressure in the pressure control chamber. The water hole is connected with the water inlet end of the pilot structure, and the pressure control chamber is also connected with the above water outlet chamber through the pressure relief channel, the cross-sectional area of the water inlet hole is smaller than the cross-sectional area of the pressure relief channel and both The cross-sectional area of the water inlet port of the water outlet chamber is smaller than that of the water outlet port, and the driving member can block or communicate with the pressure relief channel.

The gasket isolates the pressure control chamber from the water outlet chamber and the water inlet of the pilot structure at the same time, that is, the water inlet of the water outlet chamber and the water inlet of the pilot structure are connected to the gasket, and when the gasket moves, the pilot structure The water inlet end of the pilot structure can be directly connected with the water outlet chamber, and the specific working process is as follows: When the water outlet chamber needs to be blocked, the driving part cuts off the pressure relief channel, and the water entering the pilot structure from the water inlet end of the pilot structure enters the pressure control valve through the water inlet hole. In the cavity and because the pressure relief channel is cut off, the water accumulates in the pressure control cavity until the water pressure in the pressure control cavity is balanced with the water pressure at the water inlet end of the pilot structure. At this time, the gasket is affected by the water in the pressure control cavity The pressure and the elastic force of the spring are sealed against the port of the water inlet end of the water outlet chamber, isolating the pressure control chamber from the water outlet chamber, and at the same time isolating the water outlet chamber from the water inlet end of the pilot structure, so that no water enters the water outlet chamber; otherwise , when the water outlet chamber needs to be connected, the driver first connects to the pressure relief channel, the water in the pressure control chamber enters the water outlet chamber through the pressure relief channel, and at the same time, the water replenishes water to the pressure control chamber through the water inlet hole, due to the cross-sectional area of the water inlet hole If the water inlet speed is lower than the water outlet speed, the water pressure in the pressure control chamber gradually decreases until the water pressure at the water inlet end of the pilot structure overcomes the elastic force of the spring and the gasket is pushed away, and the gasket is far away from the inlet of the water outlet chamber. The port of the water end, the water inlet end of the pilot structure is connected with the water inlet end of the water outlet cavity, and the water flow directly flows into the water outlet cavity and flows out through the water outlet hole. The structure of the pilot structure utilizes water pressure to open or close the waterway, which greatly reduces energy consumption and use cost compared with the way of directly using the driving part to overcome the water pressure for driving.

In the above-mentioned intelligent gear shift overhead shower, the pilot structure also includes a housing, and the pressure control chamber includes pressure control chamber 1 and pressure control chamber 2, both of which are concave cavities in the housing, and the spring It includes spring 1 and spring 2 respectively arranged in pressure control chamber 1 and pressure control chamber 2. The water outlet chamber includes water outlet chamber 1 and water outlet chamber 2. Gasket 1 that can lean against the port of the water inlet end of the water outlet chamber 1 and the gasket 2 that is sealingly connected to the opening of the pressure control chamber 2 and can lean against the port of the water inlet end of the water outlet chamber 2, the pressure control chamber One is connected to the water inlet end of the pilot structure through the water inlet hole 1 opened on the gasket 1, and the pressure control chamber 2 is connected to the water inlet end of the pilot structure through the water inlet hole 2 opened on the gasket 2 , the pressure relief channel includes a pressure relief channel 1 that can connect the pressure control chamber 1 with the water outlet chamber 1 and a pressure relief channel 2 that can connect the pressure control chamber 2 with the water outlet chamber 2. One or both of pressure channel one and pressure relief channel two. The structure of pressure control chamber, water outlet chamber, spring, gasket, pressure relief channel and water inlet hole is arranged in one-to-one correspondence, and the switching of the water outlet channel can be realized by switching the driving part to connect one of the two pressure relief channels. Of course, according to If necessary, the number of corresponding structures can be increased to three, four or more. When in use, the control drive member can choose to communicate with one or more of several pressure relief passages.

In the above-mentioned intelligent shifting overhead shower, the outer wall of the housing has a concave overflow cavity, the pressure relief channel one includes a flow guide hole one and a pressure relief hole one, and the guide hole one The flow hole can connect the above-mentioned pressure control chamber 1 and the overflow cavity, the pressure relief hole can connect the flow cavity and the water outlet cavity 1, and the above-mentioned driving member includes a seal connected to the opening of the flow cavity. The electric element of the blocking part, the electric element can drive the blocking part close to the water inlet port of the first pressure relief hole under electric drive and block the first pressure relief hole. The electric element used as the driver is arranged outside the casing of the pilot structure. Compared with the structure in which the electric element is arranged inside the casing, as far as the casing of the pilot structure is concerned, there is no need to open holes to introduce power supply wires, which is conducive to sealing and can effectively prevent In the case of water leakage, as far as the electric components are concerned, there is no need to install too many sealing structures to prevent water ingress, and it can also greatly reduce the probability of water ingress due to poor sealing effect of the electric components or the power supply wires connected to the electric components. It ensures the stable operation of the electric components and prolongs the service life, and even if the electric components are damaged, there is no need to dismantle the entire pilot structure shell, and the electric components can be directly removed for replacement, which is convenient for maintenance and further reduces the cost of use. In addition, the water inlet tends to generate a certain suction force on the outside of the port when the water flows in, and the water outlet tends to generate repulsion to the outside of the port when the water flows out. Plugging further reduces the driving force requirement.

In the above-mentioned intelligent gear-shift overhead shower, the pressure control chamber 1 and the pressure control chamber 2 are arranged oppositely, and the driving member also includes a rod-shaped blocking member, one end of which is connected to The sealing gasket 1 is fixedly connected to the side of the sealing gasket 2, and the other end of the sealing member is opposite to the pressure relief channel 2, and the sealing member can flow to the discharge port when the sealing gasket 1 is far away from the water inlet port of the water outlet chamber 1. Pressure channel two direction movement and blocking pressure relief channel two. The pressure control chamber 2 in the pilot structure is blocked or pressure-relieved through the blocking piece installed in the housing. Because the blocking piece is linked with the gasket one, there is no need to add an additional electric component, which not only reduces the production cost but also can Reduce the volume of overhead showers. At the same time, the reduction of two electric elements into one electric element also reduces the consumption of electric energy during use. Of course, if necessary, the same structure as that of the pressure control chamber can also be considered at the pressure relief channel, and the states of the two pressure control chambers can be controlled respectively through two electric elements.

In the above-mentioned intelligent shifting overhead shower, the housing also has a discharge cavity, the pressure relief channel 2 includes a flow diversion hole 2 and a pressure relief hole 2, and the flow diversion hole 2 can communicate with the pressure Control cavity two and discharge cavity, the pressure relief hole two can communicate with the discharge cavity and the water outlet cavity two, the other end of the above-mentioned blocking member extends into the discharge cavity and is opposite to the water inlet end of the pressure relief hole two, The sealing member can move toward the water inlet of the pressure relief hole 2 and seal the pressure relief hole 2 when the gasket 1 is away from the water inlet port of the water outlet chamber 1. The discharge cavity is provided and the pressure relief channel is divided into the second diversion hole and the second pressure relief hole, so that the port of the second pressure relief hole can be separated, which is beneficial to the sealing of the blocking member and improves the reliability of the product.

In the above-mentioned intelligent gear-shifting overhead shower, the housing includes sub-shell 1, sub-shell 2, and rubber cover 1 and rubber cover 2 sequentially arranged between sub-shell 1 and sub-shell 2. The above-mentioned pressure control chamber 1 is formed between the rubber cover 1 and the sub-shell 1, the above-mentioned pressure control chamber 2 is formed between the rubber cover 2 and the sub-shell 2, and the above-mentioned discharge chamber is formed between the rubber cover 1 and the plastic cover 2. , the first rubber cover is also provided with a through hole through which the above-mentioned blocking member can pass, a sealing ring one is arranged between the first rubber cover and the above-mentioned sub-shell one, and the first rubber cover and the second rubber cover A second sealing ring is arranged between them, and the second sealing ring is sleeved on the outer side of the blocking member, and the inner side wall of the second sealing ring is attached to the outer side wall of the blocking member. Divide the entire shell of the pilot structure into shell 1, sub-shell 2, rubber cover 1 and rubber cover 2, making the shell easier to process, and the role of the sealing ring 2 is not only for sealing, but also for sealing The action provides guidance, so that the sealing member can accurately block the pressure relief hole 2, and improve the reliability of product sealing. If it is necessary to control the switching of the three water outlets, an additional housing can be added, and the water inlet end of the housing can be connected with one of the two water outlet ends of the previous housing.

In the above-mentioned intelligent shifting overhead shower, the electric element is an electromagnet, and the above-mentioned blocking part is an end surface of an outer end of an armature of the electromagnet. When the electromagnet is energized, the outer end of the armature stretches out, and its end face seals the pressure relief hole 1. When the power is cut off, the armature retracts, and the pressure relief hole 1 leads to water outlet. Here, in order to reduce the energy consumption of the electromagnet, a monostable electromagnet or a bistable electromagnet can be selected, which changes the state when the power-on signal is given, and then cuts off the power and maintains the changed state, then cuts off the pressure relief hole for a while There is no need to continuously power on, which can reduce energy consumption.

As another situation, in the above-mentioned intelligent gear shift overhead shower, the electric element is a piezoelectric element. The piezoelectric element is an existing product. When a voltage is applied to the piezoelectric element, the piezoelectric element deforms and bends in one direction; when it is not energized, it returns to its original state. Its specific structure and working principle will not be repeated here.

As another situation, in the above-mentioned intelligent shifting overhead shower, the housing includes a main body and a middle cover 1 and a top cover 1 which are both arranged on one side of the main body, and the main body and the middle cover 1 The above-mentioned pressure control chamber 1 is formed between the two, the above-mentioned gasket 1 is connected between the middle cover 1 and the main body, and the top cover 1 is sealed and connected with the middle cover 1, and a pressure relief chamber 1 is formed between the two. The above-mentioned pressure relief channel 1 includes a flow diversion hole 1 and a pressure relief hole 1 that are both opened on the middle cover 1. The flow diversion hole 1 can communicate with the pressure control chamber 1 and the pressure relief chamber 1. The pressure relief hole One can communicate with the pressure relief chamber one and the water outlet chamber one. The above-mentioned driving part includes a piezoelectric element one fixed on the side of the top cover one opposite to the middle cover one. The piezoelectric element one and the water inlet of the pressure relief hole one The opposite is true. This solution uses the piezoelectric element 1 to cut off the pressure relief channel 1. When the piezoelectric element is energized, it deforms and protrudes toward the pressure relief hole, cutting off the pressure relief channel 1. When the piezoelectric element is powered off, it restores and connects. Pressure relief channel one.

In the above-mentioned intelligent shifting overhead shower, the top cover 1 has a positioning cavity 1, and the opening of the positioning cavity 1 is sealed and connected with a deformable sealing sheet, and the piezoelectric element 1 is arranged on the One side of the piezoelectric element is in close contact with the sealing sheet, and a limiting block 1 for limiting the deformation direction of the piezoelectric element is arranged between the other side of the piezoelectric element 1 and the top cover 1 . The piezoelectric element 1 is separated from the water flow by positioning the concave cavity 1 and the sealing sheet to ensure the reliability of the piezoelectric element 1 in use.

In the above-mentioned intelligent shifting overhead shower, the housing further includes a middle cover 2 and a top cover 2 both arranged on one side of the main body, and the main body and the middle cover 2 are sealed and connected between the two. The pressure control chamber 2 is formed, the gasket 2 is connected between the middle cover 2 and the main body, the top cover 2 and the middle cover 2 are hermetically connected and a pressure relief chamber 2 is formed between them, and the pressure relief channel 2 includes The diversion hole 2 and the pressure relief hole 2 are both opened on the middle cover 2. The diversion hole 2 can be connected to the pressure control chamber 2 and the pressure relief chamber 2, and the pressure relief hole 2 can be connected to the pressure relief chamber 2. And the water outlet chamber 2, the above-mentioned driving part also includes a piezoelectric element 2 fixedly connected to the side of the top cover 2 opposite to the middle cover 2, and the piezoelectric element 2 is opposite to the water inlet end of the pressure relief hole 2. In this solution, the structures of the first and second voltage-controlled chambers are exactly the same, and the states of the first and second voltage-controlled chambers are respectively controlled by the piezoelectric element 1 and the piezoelectric element 2 to realize the switching of the waterway.

In the above-mentioned intelligent gear-shifting overhead shower, the top cover 2 has a positioning cavity 2, and the opening of the positioning cavity 2 is sealed and connected with a deformable sealing sheet, and the piezoelectric element 2 is arranged on Positioning the cavity 2 and one side of the piezoelectric element 2 abuts against the sealing sheet, and a limiting block 2 for limiting the deformation direction of the piezoelectric element is arranged between the other side of the piezoelectric element 2 and the top cover 2. The first limit block and the second limit block are both rubber blocks, which lean against the other side of the piezoelectric element to ensure that the piezoelectric element is always deformed towards the sealing sheet.

As another situation, in the above-mentioned intelligent shifting overhead shower, the driving member includes a driving motor, a disc-shaped turntable and a switching base, and the top of the switching base has a concave cylindrical shape shaped cavity, the turntable is horizontally arranged in the cavity and the top of the turntable is circumferentially fixed to the output shaft of the above-mentioned drive motor, and the center of the bottom of the switch base is opened to communicate with the first water outlet chamber and the second water outlet chamber The bottom of the turntable has a switching cavity, the water outlets of the pressure relief channel 1 and the pressure relief channel 2 are located at the bottom of the switching base and distributed around the discharge hole, and the turntable is in the drive motor. The switching concave cavity at the bottom can be driven to connect one of the pressure relief passage one and the pressure relief passage two with the discharge hole. Here, the cross-section of the switching cavity can be fan-shaped, and when the drive motor drives the turntable to rotate, the fan-shaped switching cavity rotates at the same time, and the discharge hole at the center that is always connected with the switching cavity and the surrounding discharge hole are arranged. If one of the pressure relief passages is connected, the water in the corresponding pressure control chamber flows into the water outlet chamber through the pressure relief passage, the switching cavity and the discharge hole to realize pressure relief and the opening of the corresponding sealing gasket. Here, the motor can be a stepper motor or other motors, and the precise positioning of each waterway switch can be completed by setting the rotation speed and rotation time. Hall sensors, photoelectric sensors and other structures can also be added to assist positioning.

Compared with the prior art, this intelligent gear shift overhead shower has the following advantages:

1. This intelligent gear-shift top sprayer senses the user's trigger signal through the sensor and automatically controls the switching of the waterway, which is easy to use.

2. This intelligent shift top sprinkler sets the pilot structure to assist the driving part to switch the waterway, which greatly reduces the driving force required by the driving part, so that it can supply power to the driving part through the power supply unit, and the power supply current is small, ensuring It works stably without additional external high-power power supply, which reduces the cost of use while ensuring the reliability of the work.

3. The electric components are arranged outside the casing in this intelligent gear shift top spray shower, which greatly reduces the sealing difficulty of the casing and the electric components, ensures the reliability and service life of the casing and the electric components, and reduces the It reduces the difficulty of maintenance and reduces the cost of use.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of Embodiment 1 of the intelligent gear shift overhead shower.

Fig. 2 is an exploded view of the switching base of Embodiment 1 of the intelligent gear shift overhead shower.

Fig. 3 is a cross-sectional structural schematic diagram of the pilot structure of the second embodiment of the intelligent gear shift overhead shower.

Fig. 4 is a schematic cross-sectional structural view of the pilot structure of the third embodiment of the intelligent gear shift overhead shower.

Fig. 5 is an exploded view of the pilot structure in Embodiment 3 of the intelligent gear shift overhead shower.

In the figure, 1, shell; 1a, water inlet; 1b, water outlet hole; 1c, water outlet chamber one; 1d, water outlet chamber two; 2, pilot structure; 3, driving part; 3a, electric element; 3b, blocking part; 3c, piezoelectric element 1; 3d, driving motor; 4, inductor; 5, generator; 6, shell; 6a, split shell 1; 6b, split shell 2; ; 7, pressure control cavity one; 8, pressure control cavity two; 9, spring one; 10, spring two; 11, gasket one; 12, gasket two; 13, water inlet hole one; 14, water inlet hole two ; 15, pressure relief channel one; 15a, diversion hole one; 15b, pressure relief hole one; 16, pressure relief channel two; 16a, diversion hole two; 16b, pressure relief hole two; 17, overflow cavity; 18. Discharge cavity; 19. Seal ring one; 20. Seal ring two; 21. Main body; 22. Middle cover one; 23. Top cover one; 24. Positioning cavity one; Block one; 27, turntable; 28, switching base; 29, discharge hole; 30, switching cavity.

detailed description

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

Embodiment one

As shown in Figure 1, the intelligent gear shift overhead shower includes a housing 1 with a water inlet 1a on the upper side, and several groups of water outlet holes 1b are opened on the bottom of the housing 1, and the housing 1 has a combination of the number and the water outlet holes 1b. The same number of mutually independent water outlet cavities, several water outlet cavities communicate with several groups of water outlet holes 1b in one-to-one correspondence. The casing 1 is also fixed with a pilot structure 2 having a water inlet and several water outlets, a driver 3 capable of driving the pilot structure 2, an inductor 4, and a power supply unit capable of supplying power to the driver 3, wherein the pilot structure 2 The water inlet is connected to the water inlet 1a of the shell 1, the number of the water outlet is the same as that of the water outlet, and the two are connected in one-to-one correspondence. The driving part 3 can drive the pilot structure 2 to switch and strobe several water outlets according to the induction signal of the sensor 4. one or more of the .

Specifically, the pilot structure 2 includes a pressure control chamber, a spring, and a movable gasket capable of isolating the pressure control chamber from the water outlet chamber and simultaneously isolating the pressure control chamber from the water inlet end of the pilot structure 2. Under the elastic force of the spring and the water pressure in the pressure control chamber, the port against the water inlet end of the water outlet chamber can be sealed. The pressure control chamber communicates with the water inlet end of the pilot structure 2 through the water inlet hole, and the pressure control chamber also communicates with the water outlet chamber through the pressure relief channel. The cross-sectional area of the water inlet hole is smaller than the cross-sectional area of the pressure relief channel and both are smaller than the cross-sectional area of the water inlet port of the water outlet chamber, and the driving member 3 can block or communicate with the pressure relief channel.

In this embodiment, there are three pressure control chambers, springs, sealing gaskets, and water outlet chambers, all of which are arranged in one-to-one correspondence. The connection relationship and working principle of the three groups of structures are the same. Therefore, the following two groups of structures Take it as an example to explain the structure and working process. Of course, according to the situation, the number of groups of the corresponding structure can be increased to four groups, five groups, six groups or more.

The pilot structure 2 also includes a housing 6 (not shown in the figure), the pressure control chamber includes a pressure control chamber 1 7 and a pressure control chamber 2 8 which are concave cavities in the housing 6, and the springs include respectively arranged in the pressure control chamber Spring one 9 and spring two 10 in one 7 and pressure control chamber two 8, the water outlet chamber includes water outlet chamber one 1c and water outlet chamber two 1d, and the gasket includes a seal connected to the opening of the pressure control chamber one 7 and can lean against The gasket one 11 on the port of the water inlet end of the water outlet chamber one 1c and the gasket two 12 that are sealingly connected to the opening of the pressure control chamber two 8 and can lean against the port of the water inlet end of the water outlet chamber two 1d. The pressure control chamber one 7 communicates with the water inlet end of the pilot structure 2 through the water inlet hole one 13 opened on the gasket one 11, and the pressure control chamber two 8 passes through the water inlet hole two opened on the gasket two 12. 14 communicates with the water inlet end of the pilot structure 2, and the pressure relief channel includes a pressure relief channel 15 that can connect the pressure control chamber 1 7 with the water outlet chamber 1c and can connect the pressure control chamber 2 8 and the water outlet chamber 1d The connecting pressure relief passage 16, the driver 3 can communicate with one of the pressure relief passage 15 and the pressure relief passage 2 16.

The driver 3 includes a driving motor 3d, a disc-shaped turntable 27 and a switching base 28. As shown in FIG. The top of the turntable 27 is circumferentially fixed to the output shaft of the drive motor 3d, and the center of the bottom of the switching base 28 is provided with a discharge hole 29 communicating with all water outlet chambers simultaneously. The bottom of the turntable 27 has a switching cavity 30, and the water outlets of the first pressure relief channel 15 and the second pressure relief channel 16 are located at the bottom of the switching base 28 and distributed around the discharge holes 29. The turntable 27 can be driven by the drive motor 3d to make it The switching cavity 30 at the bottom connects one of the first pressure relief passage 15 and the second pressure relief passage 16 with the discharge hole 29 .

In this embodiment, the drive motor 3d is a geared motor, and the top of the turntable 27 has a protruding cylindrical connection structure, which is used for circumferential fixing with the output shaft of the drive motor 3d; the inductor 4 can be One or more in infrared sensor, sound-activated sensor, photoelectric sensor; Power supply unit comprises the generator 5 that can carry out hydropower generation, certainly, according to need, also can adopt rechargeable battery or generator 5 and rechargeable battery to share or wirelessly receive power. Correspondingly, in order to realize control, a control chip is fixed in the casing 1, and the sensor 4, the generator 5 and the driver 3 are all connected to the control chip, and the control chip receives, processes and sends signals . The cross-section of the switching cavity 30 at the bottom of the turntable 27 is fan-shaped, and the center of the fan-shaped circle is always connected to the discharge hole 29 .

In the default state of the intelligent shift top spray shower, the drive motor 3d drives the turntable 27 to rotate until the discharge hole 29 communicates with the pressure relief channel 15, then the other pressure relief channels are blocked, and the water flows through the shell 1. The water inlet 1a enters the housing 6 of the pilot structure 2 and enters the pressure control chamber 13 through the water inlet 13 on the gasket 11. At the same time, the water in the pressure control chamber 17 passes through the pressure relief passage 15 The water flows into the switching cavity 30 and flows out through the discharge hole 29 to all water outlet chambers. Because the cross-sectional area of the water inlet one 13 is smaller than the cross-sectional area of the pressure relief channel one 15, the water inlet speed is lower than the water outlet speed, and the water pressure in the pressure control chamber one 7 gradually decreases, which is affected by the elastic force of the spring one 9. The sealing gasket 11 abutting against the water inlet port of the water outlet chamber 1c is subjected to the hydraulic pressure at the water inlet end of the pilot structure 2 and overcomes the elastic force of the spring 9 to stay away from the water inlet port of the water outlet chamber 1c. The water outlet chamber 1c is connected with the water inlet end of the pilot structure 2, and the water flows out directly through the water outlet chamber 1c and a group of water outlet holes 1b connected with the water outlet chamber 1c. At this time, when the pressure relief channel 16 is blocked, the water entering the pressure control chamber 2 8 cannot flow out, the water pressure in the pressure control chamber 2 8 and the water pressure at the water inlet end of the pilot structure 2 are gradually balanced, and the sealing gasket 2 12 is sealed against the water inlet port of water outlet chamber 2 1d by the water pressure in pressure control chamber 2 8 and the elastic force of spring 2 10, water outlet chamber 2 1d and a group of water outlet holes corresponding to water outlet chamber 2 1d 1b does not come out of water. The state at the third pressure control chamber is the same as the state at the second and eighth pressure control chamber, and will not be described in detail.

When it is necessary to switch the outlet waterway, the sensor 4 senses the trigger from the user, sends a signal to the control chip, and the control chip controls the drive motor 3d to power on and start, driving the turntable 27 to rotate until the switching cavity 30 is connected to the pressure relief channel 2 16 and the discharge flow Hole 29 and cut off other pressure relief channels, drive motor 3d stops working. At this time, the water in the pressure control chamber 2 8 flows out through the pressure relief channel 2 16, and the outflow speed is greater than the replenishment speed, then the water pressure in the pressure control chamber 2 8 decreases, and the gasket 2 12 overcomes the elastic force of the spring 2 10 and is released. When the top is opened, the water outlet chamber 1d is opened, and the water flow directly passes through the water outlet chamber 1d from the water inlet end of the pilot structure 2 and flows out from the water outlet hole 1b corresponding to the water outlet chamber 2 1d. Simultaneously, because the pressure relief channel 15 is cut off, the water in the pressure control chamber 7 is gradually supplemented by the water entering from the water inlet 13, and the water pressure rises. Under the action, it gradually approaches the water outlet chamber-1c until the water outlet chamber-1c is blocked, and the water outlet hole 1b corresponding to the water outlet chamber-1c does not emit water, and the water channel switching is completed. Repeat the above steps to switch between multiple waterways. During this working process, the generator 5 is impacted by the water flow to generate electricity. Although the flow of the water flow is unstable, because the intelligent gear shift top spray shower uses the pilot structure 2 to cooperate with the drive motor 3d, it is difficult for the drive when switching the water channel. The driving force requirements of the motor 3d are greatly reduced, and the power supply of the generator 5 can fully meet the driving requirements of the driving motor 3d, realizing self-sufficiency.

Embodiment two

The structure and working principle of this embodiment are roughly the same as those of Embodiment 1, the difference lies in:

As shown in Figure 3, the housing 6 of the pilot structure 2 includes a main body 21 and a middle cover 22 and a top cover 23 which are both arranged on one side of the main body 21. The pressure control chamber one 7 and the gasket one 11 are connected between the middle cover one 22 and the main body 21, and the pressure control chamber one 7 is provided with a spring one 9 (not shown in the figure). The top cover one 23 is in sealing connection with the middle cover one 22 and a pressure relief cavity one is formed therebetween. The pressure relief channel one 15 includes a flow guide hole one 15a and a pressure relief hole one 15b both opened on the middle cover one 22 . Wherein, diversion hole one 15a can communicate with pressure control chamber one 7 and pressure relief chamber one, pressure relief hole one 15b can communicate pressure relief chamber one and water outlet chamber one 1c, and diversion hole one 15a and pressure relief hole one 15b The apertures are larger than the apertures of the water inlet hole 13 penetrating through the gasket 11 .

In this embodiment, the driving member 3 includes a piezoelectric element 3c fixed on the side of the top cover 23 opposite to the middle cover 22, and the piezoelectric element 3c is connected to the water inlet end of the pressure relief hole 15b. Quite right. Specifically, the top cover-23 has a positioning cavity-24, the opening of the positioning cavity-24 is sealed and connected with a deformable sealing sheet 25, the piezoelectric element-3c is arranged in the positioning cavity-24 and presses One side of the electric element one 3c is in contact with the sealing sheet 25, and a limit block one 26 for limiting the deformation direction of the piezoelectric element is provided between the other side of the piezoelectric element one 3c and the top cover one 23. In this embodiment, the first limiting block 26 is a rubber block.

The structure of the 8 places of the pressure control chamber 2 is exactly the same as that of the 7 places of the pressure control chamber 1, specifically including the middle cover 2 and the top cover 2 which are both arranged on one side of the main body 21, the main body 21 is sealed with the middle cover 2 and the two A pressure control chamber 2 8 is formed between them, and a gasket 2 12 with a water inlet 14 penetrating through it is connected between the middle cover 2 and the main body 21, and a spring 10 (not shown in the figure) is arranged in the pressure control chamber 2 8 , the top cover 2 and the middle cover 2 are hermetically connected and a pressure relief chamber 2 is formed between them. Pressure relief channel 2 16 includes diversion hole 2 16a and pressure relief hole 2 16b that are both opened on the middle cover 2, diversion hole 2 16a can communicate with pressure control chamber 2 8 and pressure relief chamber 2, and pressure relief hole 2 16b can The second pressure relief chamber and the second water outlet chamber 1d are connected, and the apertures of the second diversion hole 16a and the second pressure relief hole 16b are larger than the apertures of the second water inlet hole 14 penetrating through the second gasket 12 . The driver 3 also includes a piezoelectric element 2 fixedly connected to the side of the top cover 2 opposite to the middle cover 2, and the piezoelectric element 2 is opposite to the water inlet end of the pressure relief hole 2 16b.

The top cover 2 also has a positioning cavity 2, the opening of the positioning cavity 2 is sealed and connected with a deformable sealing sheet 25, the piezoelectric element 2 is arranged in the positioning cavity 2 and one side of the piezoelectric element 2 is connected to the sealing sheet 25 against each other, and a rubber block as a stopper 2 for limiting the deformation direction of the piezoelectric element is also arranged between the other side of the piezoelectric element 2 and the top cover 2.

Different from the use of the drive motor 3d to drive the turntable 27 to rotate to connect or cut off each pressure relief channel in the first embodiment, the second embodiment uses the piezoelectric element-3c to cut off the pressure relief channel-15, and the piezoelectric element-3c When energized, it deforms and protrudes toward the pressure relief hole 15b, cutting off the pressure relief channel 15, and when the piezoelectric element 3c is powered off, it restores and connects to the pressure relief channel 15. Similarly, the working principle of the second piezoelectric element is also the same, and the state of the voltage-controlled chamber 1 7 and the voltage-controlled chamber 2 8 is respectively controlled by the piezoelectric element 1 3c and the piezoelectric element 2 to realize the switching and gating of the waterway.

Embodiment three

The structure and working principle of the third embodiment are roughly the same as those of the first embodiment, the difference lies in:

As shown in Figures 4 and 5, the outer wall of the housing 6 of the pilot structure 2 has a recessed overflow cavity 17, and the pressure relief channel 15 includes a flow diversion hole 15a and a pressure relief hole 15b, and the flow diversion hole One 15 a can connect the pressure control chamber one 7 to the side of the flow cavity 17 , and the pressure relief hole one 15 b can connect the water outlet cavity one 1 c to the bottom of the flow cavity 17 . The driver 3 includes an electric element 3a with a blocking portion that is sealed and connected to the opening of the overflow cavity 17, and the electric element 3a can drive the blocking portion close to the water inlet port of the pressure relief hole 15b under electric drive and block Disconnect pressure relief hole 15b.

The first pressure control chamber 7 and the second pressure control chamber 8 are arranged oppositely, and the driving member 3 also includes a rod-shaped blocking member 3b, and one end of the blocking member 3b is fixedly connected to the side of the first gasket 11 facing the second gasket 12 , the other end of the blocking piece 3b is opposite to the second pressure relief channel 16 and the blocking piece 3b can move toward the pressure relief channel two 16 when the gasket one 11 is away from the water inlet port of the water outlet chamber one 1c and block the leakage Press channel two 16.

There are 8 places in the pressure control chamber 2, and there is also a discharge chamber 18 in the housing 6. The pressure relief passage 16 includes a diversion hole 16a and a pressure relief hole 16b. The diversion hole 16a can communicate with the pressure control chamber 2 8 and the discharge The flow cavity 18 and the second pressure relief hole 16b can communicate with the second discharge cavity 18 and the second water outlet cavity 1d, and the apertures of the second flow guide hole 16a and the second pressure relief hole 16b are larger than the second water inlet hole 2 that runs through the second gasket 12 14 apertures. The other end of the plugging part 3b stretches into the discharge chamber 18 and is opposite to the water inlet end of the pressure relief hole two 16b. The water inlet end of pressure hole 2 16b moves in the direction and seals pressure relief hole 2 16b

Wherein, the housing 6 includes a sub-shell one 6a, a sub-shell two 6b, and a rubber cover one 6c and a plastic cover two 6d which are sequentially arranged between the sub-shell one 6a and the sub-shell two 6b, the plastic cover one 6c and the sub-shell one A pressure control chamber 1 7 is formed between 6a, a pressure control chamber 2 8 is formed between the rubber cover 2 6d and the sub-shell 6b, and a discharge chamber 18 is formed between the rubber cover 1 6c and the rubber cover 2 6d. The rubber cover 1 6c is also provided with a through hole that can pass through the sealing member 3b. A sealing ring 19 is arranged between the rubber cover 1 6c and the sub-shell 6a, and between the rubber cover 1 6c and the rubber cover 2 6d. A second sealing ring 20 is provided, and the second sealing ring 20 is sheathed on the outer side of the blocking member 3b, and the inner side wall of the second sealing ring 20 is in close contact with the outer side wall of the blocking member 3b. In this embodiment, the electric element 3a is a monostable electromagnet, and the blocking part is the end surface of the armature outer end of the electromagnet; of course, it can also be replaced with a piezoelectric element or a bistable electromagnet according to actual needs.

When the pilot structure 2 is in the default state, the armature is retracted, the pressure relief hole 15b is opened, the water outlet speed in the pressure control chamber 7 is faster than the water replenishment speed, and the water pressure gradually decreases, and the sealing gasket 11 is overcome by the external water pressure. The spring 9 acts on the elastic force and is away from the water inlet port of the water outlet chamber 1c, and the water at the water inlet end of the pilot structure 2 flows out through the water outlet chamber 1c. At the same time, the sealing member 3b moves closer to the second gasket 12 along with the gasket one 11 to seal the pressure relief hole two 16b, the pressure control chamber two 8 only enters water and no water comes out, and the second gasket 12 leans against the water outlet chamber two 1d The water inlet end port, the water outlet chamber 2 1d does not produce water. When the waterway is switched, the armature receives the energization signal and pops up to block the pressure relief hole 15b. At this time, the coil is powered off, and the armature keeps popping up. Afterwards, the gasket one 11 at the pressure control chamber one 7 gradually returns to the initial state, and the gasket two 12 at the pressure control chamber two 8 is opened to realize the waterway switching. For the structure in this embodiment, if it is necessary to realize the switching of the three-way waterway, another structure identical to the above-mentioned pilot structure 2 with two water inlets and two water outlets can be added, and the two inlets of the pilot structure 2 All the water ends need to be connected with one of the water outlets of the preceding pilot structure 2 .

Different from Embodiment 1 and Embodiment 2, in Embodiment 3, the electric element 3a as the driver 3 is arranged outside the casing 6 of the pilot structure 2, compared to the structure in which the electric element 3a is arranged inside the casing 6 As far as the housing 6 of the pilot structure 2 is concerned, there is no need to open holes to introduce power supply wires, which is beneficial to sealing and can effectively prevent water leakage. As far as the electric element 3a is concerned, there is no need to set too many sealing structures to prevent water ingress. It can greatly reduce the probability of water ingress due to poor sealing effect of the electric element 3a or the power supply wire connected to the electric element 3a, effectively ensure the stable operation of the electric element 3a, prolong the service life, and even if the electric element 3a is damaged, it does not need to be removed The housing 6 of the entire pilot structure 2 can be replaced by directly removing the electric element 3a, which is convenient for maintenance and further reduces the use cost. In addition, the water inlet tends to generate a certain suction to the outside of the port when the water flows in, and the water outlet tends to generate repulsion to the outside of the port when the water flows out. Therefore, the water inlet of the pressure relief hole 15b is controlled by the control electric element 3a. Plugging the ports further reduces driving force requirements. Compared with Embodiment 2, in Embodiment 3, only one electric element 3a is required to control the switching of the two waterways, and the energy consumption is lower.

In addition, in addition to the above structure, the technical solution of the pilot structure 2 can also be modified and replaced with reference to the existing pilot structures such as the SY series Japanese SMC pilot five-way solenoid valve and the Japanese SMC solenoid valve. The specific structure of the pilot structure 2 can be Refer to http://www.chinabaike.com/t/31542/2014/0621/2515593.html.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (12)

1. An intelligent gear shift overhead shower, comprising a casing (1) with a water inlet (1a) on the upper side, and several groups of water outlet holes (1b) are opened at the bottom of the casing (1) and inside the casing (1) There are mutually independent water outlet cavities with the same number as the number of groups of water outlet holes (1b), and several water outlet cavities communicate with several groups of water outlet holes (1b) one by one. It is characterized in that the housing (1) is also fixed There is a pilot structure (2) with a water inlet and several water outlets, a driver (3) capable of driving the pilot structure (2), an inductor (4), and a power supply unit capable of supplying power to the driver (3) , the water inlet end of the pilot structure (2) communicates with the water inlet (1a) of the above-mentioned casing (1), the number of the water outlet ends is the same as that of the above-mentioned water outlet chambers, and the two are connected in one-to-one correspondence, and the driving member ( 3) According to the induction signal of the sensor (4), the above-mentioned pilot structure (2) can be driven to switch and gate one or more of the several water outlets. 2. The intelligent gear shift overhead shower according to claim 1, characterized in that, the pilot structure (2) includes a pressure control chamber, a spring, and is capable of isolating the pressure control chamber from the water outlet chamber and A movable gasket that isolates the pressure control chamber from the water inlet end of the above-mentioned pilot structure (2), and the gasket can be sealed against the above-mentioned outlet water under the action of the spring force of the above-mentioned spring and the water pressure in the pressure control chamber. The port of the water inlet end of the chamber, the pressure control chamber is connected with the water inlet end of the pilot structure (2) through the water inlet hole, and the pressure control chamber is also connected with the above water outlet chamber through the pressure relief channel. The cross-sectional area of the water hole is smaller than the cross-sectional area of the pressure relief channel and both are smaller than the cross-sectional area of the water inlet port of the water outlet chamber, and the above-mentioned driving member (3) can block or communicate with the pressure relief channel. 3. The intelligent gear shift overhead shower according to claim 2, characterized in that, the pilot structure (2) also includes a housing (6), and the pressure control chamber includes a Pressure control chamber one (7) and pressure control chamber two (8) which are concave cavities, the springs include spring one (9) respectively arranged in pressure control chamber one (7) and pressure control chamber two (8) ) and spring two (10), the water outlet chamber includes a water outlet chamber one (1c) and a water outlet chamber two (1d), and the above-mentioned gasket includes an opening that is sealingly connected to the pressure control chamber one (7) and can lean against Gasket one (11) on the port of the water inlet end of the water outlet chamber one (1c) and the sealing gasket connected to the opening of the pressure control chamber two (8) and can lean against the port of the water inlet end of the water outlet chamber two (1d) Sealing pad two (12), pressure control chamber one (7) is connected with the water inlet end of the pilot structure (2) through the water inlet hole one (13) opened on the sealing pad one (11), and the pressure control chamber Two (8) communicate with the water inlet end of the pilot structure (2) through the water inlet hole two (14) that runs through the gasket two (12), and the pressure relief channel includes the pressure control chamber one ( 7) Pressure relief channel one (15) connected to water outlet chamber one (1c) and pressure relief channel two (16) that can connect pressure control chamber two (8) and water outlet chamber two (1d), the above-mentioned driving parts (3) One or both of the pressure relief passage one (15) and the pressure relief passage two (16) can be communicated. 4. The intelligent gear shift overhead shower according to claim 3, characterized in that, the outer wall of the housing (6) has a recessed overflow cavity (17), and the pressure relief channel one (15) includes diversion hole one (15a) and pressure relief hole one (15b), and described diversion hole one (15a) can communicate with above-mentioned pressure control chamber one (7) and flow cavity (17), so The pressure relief hole one (15b) can be connected with the flow cavity (17) and the water outlet cavity one (1c). An electric element (3a), the electric element (3a) can drive the blocking part close to the water inlet port of the pressure relief hole one (15b) under electric drive and block the pressure relief hole one (15b). 5. The intelligent gear shift overhead shower according to claim 4, characterized in that said pressure control chamber 1 (7) and pressure control chamber 2 (8) are arranged opposite to each other, and said driving member (3 ) also includes a rod-shaped blocking piece (3b), one end of the blocking piece (3b) is fixedly connected to the side of the above-mentioned sealing gasket one (11) facing the above-mentioned sealing gasket two (12), and the blocking piece (3b ) is opposite to the pressure relief passage two (16) and the sealing member (3b) can flow to the pressure relief passage two (16) when the gasket one (11) is away from the water inlet port of the water outlet chamber one (1c). ) direction and block pressure relief channel two (16). 6. The intelligent gear-shift overhead shower according to claim 5, characterized in that, the housing (6) also has a discharge cavity (18), and the pressure relief passage two (16) includes a guide Flow hole two (16a) and pressure relief hole two (16b), described flow guide hole two (16a) can communicate with pressure control chamber two (8) and discharge chamber (18), described pressure relief hole two ( 16b) can communicate with the discharge chamber (18) and the water outlet chamber two (1d), the other end of the above-mentioned blocking member (3b) extends into the discharge chamber (18) and connects with the water inlet end of the pressure relief hole two (16b) In contrast, the sealing member (3b) can move toward the water inlet of the second pressure relief hole (16b) and seal when the gasket one (11) is away from the water inlet port of the water outlet chamber one (1c) Pressure relief hole two (16b). 7. The intelligent gear shift overhead shower according to claim 6, characterized in that, the housing (6) comprises a sub-shell one (6a), a sub-shell two (6b) and sequentially arranged in the sub-shells One (6a) and the rubber cover one (6c) and the rubber cover two (6d) between the sub-shell two (6b), the above-mentioned pressure control is formed between the described rubber cover one (6c) and the sub-shell one (6a). Chamber one (7), the above-mentioned pressure control chamber two (8) is formed between the rubber cover two (6d) and the sub-shell two (6b), and the above-mentioned pressure control chamber two (8) is formed between the plastic cover one (6c) and the rubber cover two (6d). The above-mentioned discharge cavity (18), the said rubber cover one (6c) is also penetrated with a through hole for the above-mentioned blocking member (3b) to pass through, and the said rubber cover one (6c) and the above-mentioned sub-shell A seal ring one (19) is arranged between one (6a), and a seal ring two (20) is arranged between the rubber cover one (6c) and the rubber cover two (6d), and the seal ring two (20) is sleeved on the seal The outer side of the blocking piece (3b) and the inner sidewall of the second sealing ring (20) are in close contact with the outer sidewall of the blocking piece (3b). 8. The intelligent gear shift overhead shower according to claim 3, characterized in that, the housing (6) comprises a main body (21) and a middle cover ( 22) and top cover one (23), the main body (21) is sealed with the middle cover one (22) and the above-mentioned pressure control chamber one (7) is formed between the two, and the above-mentioned gasket one (11) is connected to Between the middle cover one (22) and the main body (21), the top cover one (23) is sealed and connected with the middle cover one (22) and a pressure relief cavity is formed between the two, and the above pressure relief channel one (15 ) includes diversion hole one (15a) and pressure relief hole one (15b) both opened on the middle cover one (22), and said diversion hole one (15a) can communicate with pressure control chamber one (7) and discharge Pressure chamber one, the pressure relief hole one (15b) can communicate with the pressure relief chamber one and the water outlet chamber one (1c), and the above-mentioned driving member (3) includes a The piezoelectric element one (3c) on one side of (22), the piezoelectric element one (3c) is opposite to the water inlet end of the pressure relief hole one (15b). 9. The intelligent gear shift overhead shower according to claim 8, characterized in that, the top cover one (23) has a positioning cavity one (24), and the positioning cavity one (24) The opening is sealed with a deformable sealing sheet (25), the piezoelectric element one (3c) is arranged in the positioning cavity one (24) and one side of the piezoelectric element one (3c) is attached to the sealing sheet (25) By the way, between the other side of the piezoelectric element one (3c) and the top cover one (23), there is also a limiting block one (26) for limiting the deformation direction of the piezoelectric element. 10. The intelligent gear shift overhead shower according to claim 8, characterized in that, the housing (6) further comprises a middle cover 2 and a top cover 2 both arranged on one side of the main body (21), The main body (21) is sealed and connected with the middle cover two and the above-mentioned pressure control chamber two (8) is formed between the two, and the above-mentioned sealing gasket two (12) is connected between the middle cover two and the main body (21). The top cover 2 and the middle cover 2 are hermetically connected and a pressure relief chamber 2 is formed between the two. The above-mentioned pressure relief channel 2 (16) includes the diversion hole 2 (16a) and the pressure relief hole 2 all opened on the middle cover 2. (16b), the second diversion hole (16a) can communicate with the second pressure control chamber (8) and the second pressure relief chamber, and the second pressure relief hole (16b) can communicate with the second pressure relief chamber and the second outlet chamber ( 1d), the above-mentioned driving member (3) also includes a piezoelectric element 2 that is fixedly connected to the side of the top cover 2 opposite to the middle cover 2, and the piezoelectric element 2 is connected to the water inlet end of the pressure relief hole 2 (16b). Is on. 11. The intelligent gear shift overhead shower according to claim 10, characterized in that the top cover 2 has a positioning cavity 2, and the opening of the positioning cavity 2 is sealed and connected with a deformable seal sheet (25), the piezoelectric element 2 is set in the positioning cavity 2 and one side of the piezoelectric element 2 is attached to the sealing sheet (25), and the other side of the piezoelectric element 2 and the top cover 2 are also arranged There is a second limit block for limiting the deformation direction of the piezoelectric element. 12. The intelligent gear shift overhead shower according to claim 3, characterized in that, the drive member (3) includes a drive motor (3d), a disc-shaped turntable (27) and a switching base ( 28), the top of the switching base (28) has a concave cylindrical cavity, the turntable (27) is horizontally arranged in the cavity and the top of the turntable (27) is connected to the drive motor (3d) The output shaft is fixed in the circumferential direction, and the center of the bottom of the switching base (28) is provided with a discharge hole (29) connected to the first water outlet chamber (1c) and the second water outlet chamber (1d). The turntable (27 ) has a switching cavity (30) at the bottom, and the outlet ends of the pressure relief channel one (15) and pressure relief channel two (16) are located at the bottom of the switching base (28) and distributed around the discharge hole (29), so Under the driving of the driving motor (3d), the above-mentioned turntable (27) can make the switching concave cavity (30) at the bottom connect one of the pressure relief passage (15) and the second pressure relief passage (16) with the discharge hole ( 29) Connected.