Water-saving structure for shower device

Abstract

The utility model provides a water-saving structure for a shower device, which comprises a water collecting tank, a water collecting cavity is arranged in the water collecting tank, the water collecting tank is arranged at one side part of the corresponding shower device, and the shower device comprises a water inlet pipeline; the drainage structure comprises a drainage pipeline communicated with the water inlet pipeline and the water collecting cavity, and a drainage control mechanism used for controlling the water inlet pipeline to drain water to the water collecting cavity through the drainage pipeline; the water return structure comprises a water return pipeline communicated with the water inlet pipeline and the water collecting cavity, and a water return control mechanism used for controlling the water inlet pipeline to return water to the water inlet pipeline through the water return pipeline. Cooling water can be controlled by the drainage control mechanism to be pre-drained into the water collection cavity for storage through the drainage pipeline, and then the cooling water stored in the water collection cavity is controlled by the water return control mechanism to return to the water inlet pipeline through the water return pipeline, so that warm water is discharged from the water outlet device during showering, the user experience is improved, and excessive waste of water resources is avoided; and water is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shower device field, specifically point to a kind of water-saving structure for shower device. BACKGROUND

[0002] Shower device is used to be installed on bathroom wall as the connecting bridge between water heater and shower, top spray and other water outlet device, usually shower device is also connected with shower pole fixed on wall, to install top spray and shower and other water outlet device.

[0003] In existing apartment building, water heater and shower device need to be connected by long conveying pipeline, which leads to a certain amount of cooling water formed by hot water cooling in long conveying pipeline after using hot water shower through water outlet device, when shower device is opened next time, water temperature can reach suitable shower temperature after waiting for cooling water in long conveying pipeline to be discharged completely, which not only makes the temperature in bathroom drop, reduces user experience, but also causes a large amount of waste of water resources.

[0004] Aiming at the problems existing in the prior art, a water-saving structure for shower device is designed, which is the purpose of the utility model. CONTENT OF UTILITY MODEL

[0005] Aiming at the problems existing in the prior art, the utility model provides a water-saving structure for shower device, which can effectively solve the problems existing in the prior art.

[0006] The technical scheme of the utility model is:

[0007] A water-saving structure for shower device, comprising:

[0008] Water collecting tank, internally provided with water collecting cavity, the water collecting tank is installed on the side of corresponding shower device, and the shower device comprises water inlet pipeline;

[0009] Drainage structure, comprising drainage pipeline communicated with water inlet pipeline and water collecting cavity, drainage control mechanism for controlling water inlet pipeline to drain through drainage pipeline to water collecting cavity;

[0010] Water return structure, comprising water return pipeline communicated with water inlet pipeline and water collecting cavity, water return control mechanism for controlling water inlet pipeline to return through water return pipeline to water inlet pipeline.

[0011] Further, the drainage control mechanism comprises temperature sensing device for detecting water temperature in water inlet pipeline, drainage electric control valve for controlling on-off between water inlet pipeline and drainage pipeline, water level detection device for detecting water level in water collecting cavity.

[0012] Further, the backwater control mechanism comprises a water flow sensor for detecting the water flow in the water inlet pipe, and a backwater electric valve for controlling the opening and closing of the water inlet pipe and the backwater pipe.

[0013] Further, the water collecting tank is installed at the bottom of the shower device, the lower end of the backwater pipe extends downward to the bottom of the water collecting cavity, and the water inlet pipe is provided with a siphon passage through the upper port of the backwater pipe; when water flows into the water inlet pipe and through the siphon passage, the backwater pipe sucks the cooling water in the water collecting cavity upward to the water inlet pipe.

[0014] Further, the inner diameter of the siphon passage corresponding to the upper port of the backwater pipe is smaller than the inner diameter of the water inlet pipe, and the inner diameter of the siphon passage gradually increases along the water inlet direction of the water inlet pipe.

[0015] Further, the lower end of the backwater pipe extends laterally to form a water inlet end, and the backwater control mechanism comprises a one-way valve installed in the upper end of the backwater pipe and corresponding to the siphon passage.

[0016] Further, the backwater control mechanism further comprises a backwater float ball valve, which comprises a first float ball hinged to the backwater pipe through a first connecting rod and a first plug connected to the bottom of the first connecting rod and plugged into the water inlet end; when the water level in the water collecting cavity rises, the first float ball rises and drives the first plug to rotate upward to disengage the water inlet end; when the water level in the water collecting cavity drops, the first float ball drops and drives the first plug to reset to block the water inlet end.

[0017] Further, the water collecting tank is installed at the bottom of the shower device, the lower end of the drain pipe extends laterally to form a water outlet end located at the top of the water collecting cavity, the drain control mechanism comprises a mechanical control valve for controlling the opening and closing of the water inlet pipe and the drain pipe, a mechanical button for controlling the opening and closing of the mechanical control valve, and a drain float ball valve installed at the water outlet end of the drain pipe, the drain float ball valve comprises a second float ball hinged to the drain pipe through a second connecting rod and a second plug connected to the top of the second connecting rod; when the water level in the water collecting cavity rises, the second float ball rises and drives the second plug to rotate upward to block the water outlet end; when the water level in the water collecting cavity drops, the second float ball drops and drives the second plug to rotate downward to disengage the water outlet end.

[0018] Further, the water inlet pipe comprises a hot water pipe and a cold water pipe, the drain pipe communicates the hot water pipe and the water collecting cavity, and the backwater pipe communicates the cold water pipe and the water collecting cavity.

[0019] Further, the water inlet pipeline comprises a warm water pipeline, the warm water pipeline, the water outlet pipeline, the water collecting cavity and the water return pipeline are sequentially connected in circulation.

[0020] Therefore, the utility model provides following effects and / or advantages:

[0021] 1、Through the water collecting cavity, the water outlet structure and the water return structure, when the user needs to take a shower, the cooling water in the long conveying pipeline between the water heater and the shower device water inlet pipeline can be controlled by the water outlet control mechanism to be pre-discharged into the water collecting cavity for storage, and then the stored cooling water in the water collecting cavity can be controlled by the water return control mechanism to be returned to the water inlet pipeline through the water return pipeline, mixed with the water in the long conveying pipeline and then sent out to the corresponding water outlet device through the shower pipeline to supply the user with warm water, so that the water outlet device can supply warm water when the user takes a shower, the waiting time of the user is shortened, the room temperature is prevented from being lowered due to the output of cooling water, the user experience is improved, the cooling water is recycled, and water resources are prevented from being wasted excessively.

[0022] 2、By arranging the water collecting cavity below, the cooling water can automatically fall under the action of gravity when being discharged, and by arranging the siphon channel, when the cooling water needs to be returned, the water return pipeline does not need to be provided with a water pump and can suck the cooling water in the water collecting cavity into the cooling pipeline through the siphon effect, the convenience of the water outlet pipeline and the water return pipeline is improved, and the arrangement of the water pump can reduce the cost and noise of the shower device.

[0023] 3、In order to improve the stability of the siphon channel to the siphon effect of the water return pipeline, the inner diameter of the siphon channel corresponding to the upper port of the water return pipeline is smaller than the inner diameter of the water inlet pipeline, specifically smaller than the inner diameter of the cold water pipeline, so as to improve the water pressure strength of the water flow of the cold water pipeline when flowing into the upper port of the water return pipeline through the siphon channel, improve the stability of the siphon effect, the inner diameter of the siphon channel gradually increases along the water inlet direction of the water inlet pipeline, so that the water pressure gradually decreases in the direction from the upper port of the water return pipeline to the water outlet control mechanism, so as to improve the tendency of the cooling water sucked by the water return pipeline to be output to the water outlet control mechanism after entering the siphon channel, and further improve the stability of the siphon effect.

[0024] 4. The shower device is characterized in that the water return pipeline is provided with a water return float ball valve, the water return pipeline is provided with a water inlet end, the water inlet end is provided with a first sealing plug and a second sealing plug, the water inlet end is sealed by the first sealing plug when the water level in the water collecting cavity is lower than a low position, the water inlet end is opened by the first sealing plug when the water level in the water collecting cavity is higher than a certain height, and the water inlet end is sealed by the second sealing plug when the water level in the water collecting cavity is lower than a certain height.

[0025] 5. The shower device is characterized in that the water return pipeline is provided with a water return float ball valve, the water return pipeline is provided with a water inlet end, the water inlet end is provided with a first sealing plug and a second sealing plug, the water inlet end is sealed by the first sealing plug when the water level in the water collecting cavity is lower than a low position, the water inlet end is opened by the first sealing plug when the water level in the water collecting cavity is higher than a certain height, and the water inlet end is sealed by the second sealing plug when the water level in the water collecting cavity is lower than a certain height.

[0026] It should be understood that the above summary and the following detailed description of the present application are exemplary and explanatory, and are intended to provide further explanation of the present application as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the first embodiment.

[0028] Figure 2 It is a sectional structural schematic view of the first embodiment after removing the top cover of the water collecting tank.

[0029] Figure 3 It is a sectional structural schematic view of the first embodiment.

[0030] Figure 4 It is a sectional structural schematic view of the second embodiment after removing the top cover of the water collecting tank. Figure 3

[0031] Figure 5 It is a sectional structural schematic view of the second embodiment after removing the top cover of the water collecting tank.

[0032] Figure 6 It is a sectional structural schematic view of the second embodiment.

[0033] Figure 7 It is a sectional structural schematic view of the third embodiment after removing the top cover of the water collecting tank.

[0034] ​Figure 8 A sectional structure schematic diagram of the embodiment three. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of those skilled in the art, the structure of the utility model will be further described in detail in combination with the drawings:

[0036] Embodiment one

[0037] Reference Figures 1-4 A water-saving structure for a shower device, comprising:

[0038] A water collecting tank 1 is internally provided with a water collecting cavity 11, and the water collecting tank 1 is installed on one side of a corresponding shower device 9, and the shower device 9 comprises a water inlet pipeline 2; specifically, the shower device 9 is internally provided with a pipe cavity 91, and the side wall of the pipe cavity 91 is provided with the water inlet pipeline 2 in a penetrating manner, and the water inlet pipeline 2 is connected with a shower pipeline 7 through a water outlet control mechanism 8, and the water collecting tank 1 is installed on the bottom of the shower device 9, and the pipe cavity 91 and the water collecting cavity 11 are arranged in an up-down distribution manner, and the water inlet pipeline 2 is connected with the water outlet end 31 of a water heater through a long conveying pipeline;

[0039] A drainage structure comprising a drainage pipeline 3 communicating the water inlet pipeline 2 and the water collecting cavity 11, and a drainage control mechanism 4 for controlling the water inlet pipeline 2 to drain through the drainage pipeline 3 to the water collecting cavity 11;

[0040] A backwater structure comprising a backwater pipeline 5 communicating the water inlet pipeline 2 and the water collecting cavity 11, and a backwater control mechanism 6 for controlling the water inlet pipeline 2 to backwater through the backwater pipeline 5 to the water inlet pipeline 2. Specifically, the water inlet pipeline 2 comprises a hot water pipeline 22 and a cold water pipeline 23, the drainage pipeline 3 communicates the hot water pipeline 22 and the water collecting cavity 11, the backwater pipeline 5 communicates the cold water pipeline 23 and the water collecting cavity 11, and the water outlet control mechanism 8 is a water mixing valve connected with the hot water pipeline 22, the cold water pipeline 23 and the shower pipeline 7.

[0041] Through the addition of the water collecting cavity 11, the drainage structure and the backwater structure, when a user needs to take a shower, if there is cooling water in the long conveying pipeline between the water heater and the water inlet pipeline 2 of the shower device 9, the cooling water can be controlled by the drainage control mechanism 4 to be pre-drained into the water collecting cavity 11 for storage through the drainage pipeline 3, and then the backwater control mechanism 6 is used to control the cooling water stored in the water collecting cavity 11 to backwater to the water inlet pipeline 2 through the backwater pipeline 5, and the water mixed with the long conveying pipeline is sent to the corresponding water outlet device through the shower pipeline 7 after being heated to a corresponding temperature, so that the water outlet device outputs warm water when the user takes a shower, the waiting time of the user is shortened, the room temperature is prevented from being lowered due to the output of cooling water, the user experience is improved, and the cooling water is recycled, thereby avoiding excessive waste of water resources.

[0042] In order to improve the intelligent control effect of the water-saving structure, the drainage control mechanism 4 comprises a temperature sensing device 41 for detecting the water temperature in the water inlet pipeline 2, a drainage electric control valve 42 for controlling the on-off between the water inlet pipeline 2 and the drainage pipeline 3, and a water level detection device 43 for detecting the water level in the water collecting cavity 11; the backwater control mechanism 6 comprises a water flow sensing device 61 for detecting the water flow in the water inlet pipeline 2, and a backwater electric control valve 62 for controlling the on-off between the water inlet pipeline 2 and the backwater pipeline 5. Specifically, the drainage electric control valve 42 and the backwater electric control valve 62 are both electromagnetic valves and are respectively arranged on the hot water pipeline 22 and the cold water pipeline 23. The temperature sensing device 41 is a temperature sensor arranged in the hot water pipeline 22. The water level detection device 43 is a water level sensor arranged in the water collecting cavity 11 in a sliding manner. The water flow sensing device 61 is a water flow sensor sleeved on the cold water pipeline 23. A controller for electrically connecting the drainage electric control valve 42, the backwater electric control valve 62, the temperature sensing device 41 and the water level detection device 43 is arranged in the cavity 91.

[0043] Pre-drainage before showering: when the temperature sensing device 41 detects that the water temperature in the hot water pipeline 22 decreases to a set value, the drainage electric control valve 42 is opened, and the cooling water in the long conveying pipeline is discharged into the water collecting cavity 11 through the hot water pipeline 22 and the drainage pipeline 3 for storage. After the temperature sensing device 41 detects that the water temperature in the hot water pipeline 22 reaches 35℃ or the water level detection device 43 detects that the water level in the water collecting cavity 11 reaches the highest water level, the drainage electric control valve 42 is closed, and the drainage pipeline 3 stops discharging.

[0044] Cooling water backflow and reuse when starting showering: when the water flow sensing device 61 in the cold water pipeline 23 senses water flow, the controller determines that the shower device 9 is opened, and controls the backwater electric control valve 62 to open to backflow the cooling water in the water collecting cavity 11 to the cold water pipeline 23, combine with the cold water, input into the mixing valve to mix with the hot water to form warm water, and then output through the shower pipeline 7 and the water outlet device.

[0045] To improve the convenience of the water drainage pipeline 3 and the water return pipeline 5, the lower end of the water return pipeline 5 extends downward to the bottom of the water collecting cavity 11, and the water inlet pipeline 2 is provided with a siphon passage 21 through which water flows through the upper end of the water return pipeline 5; when the water inlet pipeline 2 is filled with water and the water flows through the siphon passage 21, the water return pipeline 5 sucks the cooling water in the water collecting cavity 11 upward to the water inlet pipeline 2, in particular, the siphon passage 21 is arranged in the cold water pipeline 23, and the water return pipeline 5 sucks the cooling water in the water collecting cavity 11 upward to the cold water pipeline 23. Thus, by arranging the water collecting cavity 11 below, the cooling water can automatically fall under the action of gravity when being discharged, and by additionally arranging the siphon passage 21, when the cooling water needs to be returned, the water return pipeline 5 can suck the cooling water in the water collecting cavity 11 into the cooling pipeline through the siphon effect without the need of a water pump, thereby improving the convenience of the water drainage pipeline 3 and the water return pipeline 5, and avoiding the arrangement of the water pump to reduce the cost and noise of the water-saving structure.

[0046] To improve the stability of the siphon passage 21 to the siphon effect of the water return pipeline 5, the inner diameter of the siphon passage 21 corresponding to the upper end of the water return pipeline 5 is smaller than the inner diameter of the water inlet pipeline 2, in particular, smaller than the inner diameter of the cold water pipeline 23, thereby improving the water pressure strength formed when the water flow in the cold water pipeline 23 flows into the upper end of the water return pipeline 5 through the siphon passage 21, to improve the stability of the siphon effect, and the inner diameter of the siphon passage 21 gradually increases along the water inlet direction of the water inlet pipeline 2, so that the water pressure gradually decreases from the upper end of the water return pipeline 5 to the water outlet control mechanism 8, thereby improving the tendency of the cooling water sucked by the water return pipeline 5 to be output to the water outlet control mechanism 8 after entering the siphon passage 21, to further improve the stability of the siphon effect.

[0047] Embodiment Two

[0048] Reference Figures 5-6 To meet different user needs, the control of the water return control mechanism 6 is replaced by pure mechanical control to reduce the overall cost of the shower device 9, and the difference between the present embodiment and the first embodiment is that:

[0049] The lower end of the water return pipeline 5 extends laterally to form a water inlet end 51, and the water return control mechanism 6 includes a one-way valve 63 arranged in the upper end of the water return pipeline 5 and corresponding to the siphon passage 21 on the water outlet side. Thus, by replacing the water drainage electric control valve 42 with the one-way valve 63, the cold water in the cold water pipeline 23 can be prevented from entering the water collecting cavity 11 while ensuring that the siphon effect of the siphon passage 21 on the water return pipeline 5 can be achieved under the premise of reducing the cost of the water-saving structure.

[0050] In order to improve the stability of the water-saving structure in use, the backwater control mechanism 6 further comprises a backwater float ball valve 64, which comprises a first float ball 642 hinged to the backwater pipeline 5 through a first connecting rod 641, and a first plug 643 connected to the bottom of the first connecting rod 641 and blocked in the water inlet end 51; when the water level in the water collecting cavity 11 rises, the first float ball 642 rises and drives the first plug 643 to rotate upward to separate from the water inlet end 51, and when the water level in the water collecting cavity 11 drops, the first float ball 642 drops and drives the first plug 643 to reset to block the water inlet end 51. Therefore, by providing the backwater float ball valve 64, the water inlet end 51 of the backwater pipeline 5 is mechanically controlled to automatically open and close with the change of the water level in the water collecting cavity 11 without increasing the cost of electric control. Specifically, when the water level in the water collecting cavity 11 drops to a low position, the first plug 643 blocks the water inlet end 51 to ensure the air pressure in the backwater pipeline 5, so as to avoid the situation that the water level in the water collecting cavity 11 is low, there is no water in the backwater pipeline 5, and the water inlet pipeline 2 inlet makes the siphon pipeline and the backwater pipeline 5 produce siphon effect, and the air in the siphon backwater pipeline 5 causes abnormal noise. After the water level in the water collecting cavity 11 rises to a certain height, the first plug 643 automatically separates to open the water inlet end 51, and the backwater pipeline 5 inlet; thereby ensuring that the siphon effect is successfully performed when the water level in the water collecting cavity 11 rises to sufficient water in the backwater pipeline 5, and the second plug 463 blocks the water inlet end 51 when the water level in the water collecting cavity 11 drops to less or no water in the backwater pipeline 5, so as to avoid the siphon air producing abnormal noise and improve the stability of the water-saving structure in use.

[0051] It should be pointed out that the implementation principle and technical effects of the present embodiment are the same as those of embodiment one. For brief description, the contents not mentioned in the present embodiment can be referred to the corresponding contents in embodiment one.

[0052] Embodiment three

[0053] Reference Figures 7-8 In order to meet different user needs, the control of the drainage control mechanism 4 is also replaced by a physical button control, so that the shower device 9 can be suitable for elderly users who are more difficult to operate intelligent control. The difference between the present embodiment and embodiment two is that:

[0054] The lower end of the drain pipeline 3 extends laterally to one side to form a water outlet end 31 at the top of the water collecting cavity 11. The drain control mechanism 4 includes a mechanical control valve 44 for controlling the on-off between the water inlet pipeline 2 and the drain pipeline 3, a mechanical button 45 arranged on the side wall of the pipe cavity 91 and used for controlling the opening and closing of the mechanical control valve 44, and a drain float ball valve 46 arranged at the water outlet end 31 of the drain pipeline 3. The drain float ball valve 46 includes a second float ball 462 hinged to the drain pipeline 3 through a second connecting rod 461 and a second plug 463 connected to the top of the second connecting rod 461. Specifically, the control of the mechanical button 45 on the mechanical control valve 44 can refer to the prior application with the title of a mechanical drain shower device and the application number of 202421294272.2. When the water flowing into the second water inlet is cold water, the temperature memory spring retracts to drive the drain plug to separate from the inner cylinder to open the drain passage for drainage. When the water temperature flowing into the second water inlet rises to a set temperature, the temperature memory spring retracts to drive the drain plug to block the water inlet end of the drain cylinder to close the drain passage and stop drainage. The water outlet button drives the driving member to swing to achieve the blocking or separation of the water outlet valve from the water outlet hole to close or open the water outlet passage, thereby achieving the opening of the water outlet passage by simple mechanical operation of the water outlet button after the drain valve closes the drain passage to stop the drainage of the drain outlet, and the discharge of warm water from the drain outlet. Correspondingly, in the present embodiment, when the water in the water inlet pipeline 2 is cold water, the drain outlet of the mechanical control valve 44 is automatically opened to discharge cold water into the water collecting cavity 11 until the temperature memory spring retracts to close.

[0055] When the water level in the water collecting cavity 11 rises, the second float ball 462 rises and drives the second plug 463 to rotate upward to block the water outlet end 31. When the water level in the water collecting cavity 11 drops, the second float ball 462 drops and drives the second plug 463 to rotate downward to separate from the water outlet end 31. Thus, the mechanical button 45 and the mechanical control valve 44 replace the drain electric control valve 42, and the drain float ball valve 46 replaces the water level detection device 43, so that the discharge of cooling water from the drain pipeline 3 and the return of cooling water from the return pipeline 5 are both mechanically controlled, the control of the water saving structure is replaced by the control of the physical button, which is suitable for old users and improves the applicability of the water saving structure.

[0056] It should be noted that the implementation principle and the technical effects of the present embodiment and embodiment two are the same. For brevity, the present embodiment is not mentioned, and the corresponding content in embodiment one can be referred to.

[0057] Embodiment Four

[0058] In order to further meet the different shower needs of users, the difference between the present embodiment and embodiment one or embodiment two is that:

[0059] The water inlet pipeline 2 comprises a warm water pipeline, the warm water pipeline, the water outlet pipeline 3, the water collecting cavity 11 and the water return pipeline 5 are sequentially connected in circulation, the water outlet control mechanism 8 is a water outlet control valve for controlling the on-off between the warm water pipeline and the shower pipeline 7, specifically, the water outlet control valve can be an electromagnetic valve, the opening and closing of the water outlet control valve is controlled by the detection result of the temperature sensing device 41, when the shower device 9 starts to be used, the water inlet of the warm water pipeline and the water return pipeline 5 return water to the warm water pipeline through the siphon passage 21, when the temperature sensing device 41 detects that the water temperature in the warm water pipeline is low, the water flow will continuously circulate in the warm water pipeline, the water outlet pipeline 3, the water collecting cavity 11 and the water return pipeline 5, until the temperature sensing device 41 detects that the water temperature in the warm water pipeline reaches the set temperature, the water outlet control mechanism 8 opens the water outlet, so as to meet the set requirement of the user on the water outlet temperature of the water outlet device on the basis of saving the cooling water.

[0060] It should be pointed out that the implementation principle and the technical effects of the embodiment are the same as those of the first embodiment or the second embodiment, for brief description, the embodiment is not mentioned, and the corresponding content in the first embodiment can be referred to.

[0061] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water-saving structure for a shower device, characterized in that, include: A water collection tank (1) is provided with a water collection cavity (11) inside. The water collection tank (1) is installed on one side of a corresponding shower device (9). The shower device (9) includes a water inlet pipe (2). The drainage structure includes a drainage pipe (3) connecting the water inlet pipe (2) and the water collection chamber (11), and a drainage control mechanism (4) for controlling the water inlet pipe (2) to drain water to the water collection chamber (11) through the drainage pipe (3); The water return structure includes a water return pipe (5) connecting the water inlet pipe (2) and the water collection chamber (11), and a water return control mechanism (6) for controlling the water inlet pipe (2) to return water to the water inlet pipe (2) through the water return pipe (5).

2. The water-saving structure for a shower device as described in claim 1, characterized in that, The drainage control mechanism (4) includes a temperature sensing device (41) for detecting the water temperature in the inlet pipe (2), a drainage solenoid valve (42) for controlling the connection and disconnection between the inlet pipe (2) and the drainage pipe (3), and a water level detection device (43) for detecting the water level in the collection chamber (11).

3. The water-saving structure for a shower device as described in claim 1, characterized in that, The return water control mechanism (6) includes a water flow sensor (61) for detecting the water flow in the inlet pipe (2) and a return water solenoid valve (62) for controlling the connection and disconnection between the inlet pipe (2) and the return water pipe (5).

4. The water-saving structure for a shower device as described in claim 1, characterized in that, The water collection tank (1) is installed at the bottom of the shower device (9). The lower end of the return water pipe (5) extends downward to the bottom of the water collection cavity (11). The inlet water pipe (2) is provided with a siphon channel (21) that flows through the upper port of the return water pipe (5). When the water inlet pipe (2) flows through the siphon channel (21), the return water pipe (5) draws the cooling water in the water collection cavity (11) upward to the inlet water pipe (2).

5. A water-saving structure for a shower device as described in claim 4, characterized in that, The inner diameter of the siphon channel (21) corresponding to the upper port of the return water pipe (5) is smaller than the inner diameter of the inlet water pipe (2), and the inner diameter of the siphon channel (21) increases gradually along the water inlet direction of the inlet water pipe (2).

6. A water-saving structure for a shower device as described in claim 4, characterized in that, The lower end of the return water pipe (5) extends laterally to one side to form an inlet end (51), and the return water control mechanism (6) includes a one-way valve (63) located inside the upper end of the return water pipe (5) and corresponding to the siphon channel (21) on the outlet side.

7. A water-saving structure for a shower device as described in claim 6, characterized in that, The return water control mechanism (6) further includes a return water float valve (64), which includes a first float (642) hinged to the return water pipeline (5) via a first connecting rod (641) and a first plug (643) connected to the bottom of the first connecting rod (641) and plugged in the water inlet (51). When the water level in the water collection chamber (11) rises, the first float (642) floats up and drives the first plug (643) to rotate upward and disengage from the water inlet (51). When the water level in the water collection chamber (11) drops, the first float (642) drops down and drives the first plug (643) to reset and plug the water inlet (51).

8. A water-saving structure for a shower device as described in claim 1, characterized in that, The water collection tank (1) is installed at the bottom of the shower device (9). The lower end of the drain pipe (3) extends laterally to one side to form a water outlet (31) located at the top of the water collection chamber (11). The drain control mechanism (4) includes a mechanical control valve (44) for controlling the opening and closing of the water inlet pipe (2) and the drain pipe (3), a mechanical button (45) for controlling the opening and closing of the mechanical control valve (44), and a drain float valve (46) located at the water outlet (31) of the drain pipe (3). The drain float valve (46) includes... Includes a second float (462) hinged to the drain pipe (3) via a second connecting rod (461) and a second plug (463) connected to the top of the second connecting rod (461); when the water level in the water collection chamber (11) rises, the second float (462) floats up and drives the second plug (463) to rotate upward to block the water outlet (31); when the water level in the water collection chamber (11) drops, the second float (462) drops down and drives the second plug (463) to rotate downward to disengage from the water outlet (31).

9. A water-saving structure for a shower device as described in claim 1, characterized in that, The inlet pipe (2) includes a hot water pipe (22) and a cold water pipe (23). The drain pipe (3) connects the hot water pipe (22) and the water collection chamber (11). The return pipe (5) connects the cold water pipe (23) and the water collection chamber (11).

10. A water-saving structure for a shower device as described in claim 1, characterized in that, The water inlet pipe (2) includes a warm water pipe, and the warm water pipe, the drain pipe (3), the water collection chamber (11), and the return water pipe (5) are connected in sequence in a loop.

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