Human body cleaning device, working method thereof and intelligent toilet

Abstract

The application discloses a human body cleaning device, a working method thereof and an intelligent closestool. The human body cleaning device comprises a support, a spray rod and a blowing mechanism. The spray rod is telescopically arranged on the support in a preset direction and is driven by a first driving mechanism arranged on the support. The spray rod is provided with at least one water inlet hole, at least one water outlet hole and an internal water channel connecting the water inlet hole and the water outlet hole. After the spray rod finishes work, the blowing mechanism outputs first gas which enters from each water outlet hole or the water outlet hole which has just finished the spray washing function, and blows the residual water in the spray rod from the water inlet hole corresponding to the water outlet hole which has just finished the spray washing function and adjusted to the empty state. The application adopts the mode of reverse blowing to discharge the residual water in the spray rod, and can ensure that the water quality of the upstream is not polluted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bathroom, in particular to a human body cleaning device, a working method thereof and an intelligent toilet. BACKGROUND

[0002] At present, most of the intelligent toilets in the prior art are provided with hip washing and female washing functions, specifically, a human body cleaning device is installed on the intelligent toilet cover. The core component of the traditional human body cleaning device is a retractable spray rod. When the cleaning is started, the spray rod is extended, and the front end of the spray rod sprays a cleaning water flow. When the work is finished, the spray rod is retracted. The human body cleaning device has the following disadvantages: after the spray rod is used, the waterway inside the spray rod will be left with residual water, which is easy to form scale, breed bacteria, etc., thereby affecting the water outlet function and reducing the water quality. In order to solve the above problems, the prior art has appeared a human body cleaning device with a blowing function, which makes the gas source supply gas to the water supply pipeline of the spray rod through the gas supply pipeline, so as to blow out the residual water in the water supply pipeline and the internal waterway of the spray rod. However, the human body cleaning device with the blowing function has the following disadvantages: when the gas enters the water supply pipeline, it is divided into two streams, one stream of gas flows to one end of the water supply pipeline along the direction of the water flow, and the other stream of gas flows to the other end of the water supply pipeline against the direction of the water flow. The upstream of the water supply pipeline is a instantaneous heater. Thus, once the water in the water supply pipeline is contaminated, the water quality in the instantaneous heater will also be affected. SUMMARY

[0003] The present application provides a human body cleaning device, a working method thereof and an intelligent toilet, which adopts a reverse blowing method to blow out the residual water in the spray rod, so as to ensure that the upstream water quality is not contaminated.

[0004] The technical scheme adopted by the present application to solve the technical problems is as follows: a human body cleaning device, comprising a support, a spray rod and a blowing mechanism, the spray rod is retractably arranged on the support along a preset direction and is driven by a first driving mechanism arranged on the support; the spray rod is provided with at least one water inlet hole, at least one water outlet hole and an internal waterway connecting the water inlet hole and the water outlet hole; after the spray rod finishes work, the blowing mechanism outputs a first gas, the first gas enters from each water outlet hole or the water outlet hole which has just finished executing the spray washing function, and blows out the residual water in the spray rod from the water inlet hole which is adjusted to an empty state and corresponds to the water outlet hole which has just finished executing the spray washing function.

[0005] Further, the spray rod comprises a spray rod body provided with the water inlet hole, the water outlet hole and the internal waterway, and a sleeve pipe sleeved outside the spray rod body, after the residual water flows out from the water inlet hole which is adjusted to the empty state, the residual water flows down along the gap between the spray rod body and the sleeve pipe.

[0006] Further, the water inlet hole corresponding to the water outlet hole currently performing the spray washing function is supplied with low pressure water before the blowing mechanism outputs the first gas after the spray rod stops working.

[0007] Further, the water inlet hole corresponding to the water outlet hole currently performing the spray washing function is supplied with low pressure water during the extension of the spray rod.

[0008] Further, the blowing mechanism outputs the second gas to the outer surface of the spray rod before the blowing mechanism outputs the first gas after the spray rod stops working; the first gas is high pressure gas, and the second gas is low pressure gas.

[0009] Further, the blowing mechanism comprises a gas nozzle mounted on the support and connected to the gas source; the gas nozzle is in communication with the water outlet hole currently performing the spray washing function when the gas nozzle outputs the first gas.

[0010] Further, the gas nozzle comprises an air inlet cover provided with an air inlet hole and an air outlet cover provided with an air outlet hole, the air inlet cover is mounted on the support, and the air outlet cover is movably sleeved on the air inlet cover; the air inlet hole is connected to the gas source and in communication with the air outlet hole; when the air inlet hole inputs the first gas, the air outlet cover is pushed out by the first gas and contacts the outer surface of the spray rod, so that the air outlet hole is in communication with the water outlet hole currently performing the spray washing function; the air outlet cover is provided with a reset part for resetting in cooperation with the support and / or the air inlet cover.

[0011] Further, the number of water inlet holes, water outlet holes and internal water passages is multiple respectively, and each water inlet hole corresponds to at least one water outlet hole; the spray rod is provided with a water inlet part and a second driving mechanism, the water inlet part is connected to the water source and driven by the second driving mechanism to switch communication with the multiple water inlet holes; the water inlet part is empty by moving away from the water inlet hole corresponding to the water outlet hole currently performing the spray washing function.

[0012] Further, the gas source is a gas pump, the first driving mechanism comprises a telescopic motor arranged on the support and in transmission connection with the spray rod through a first transmission assembly; the second driving mechanism comprises a switching motor arranged on the support and in transmission connection with the water inlet part through a second transmission assembly; and a main control board electrically connected to the gas pump, the telescopic motor and the switching motor to control the coordinated action of the gas pump, the telescopic motor and the switching motor.

[0013] The application further provides a working method of the human body cleaning device, wherein the human body cleaning device comprises a retractable spray rod and a blowing mechanism, the spray rod is provided with at least one water inlet hole, at least one water outlet hole and an internal water channel connecting the water inlet hole and the water outlet hole; the working method comprises a spray rod extension and spray cleaning step, and further comprises a spray rod drainage step: the blowing mechanism outputs a first gas, which enters from each water outlet hole or the water outlet hole currently performing the spray cleaning function, and blows out the residual water in the spray rod from the water inlet hole adjusted to the empty state.

[0014] Further, the working method further comprises a post-spray cleaning step between the spray rod extension and spray cleaning step and the spray rod drainage step: the water inlet hole corresponding to the water outlet hole currently performing the spray cleaning function enters low-pressure water, and / or the blowing mechanism outputs a second gas, which blows to the outer surface of the spray rod; the first gas is high-pressure gas, and the second gas is low-pressure gas.

[0015] Further, the working method further comprises a pre-spray cleaning step before the spray rod extension and spray cleaning step: during the extension of the spray rod, the water inlet hole corresponding to the water outlet hole currently performing the spray cleaning function enters low-pressure water.

[0016] The application further provides an intelligent toilet, which comprises an intelligent toilet cover, and the intelligent toilet cover is installed with the human body cleaning device as described above.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] 1. After the spray rod stops working, the blowing mechanism outputs the first gas, which enters from each water outlet hole or the water outlet hole currently performing the spray cleaning function, and blows out the residual water in the spray rod from the water inlet hole adjusted to the empty state, so that when the residual water in the spray rod is drained, the residual water in the spray rod does not flow to the upstream water source of the spray rod, thereby avoiding the situation that the water source water quality is affected due to the contamination of the residual water.

[0019] 2. After the residual water flows out from the water inlet hole adjusted to the empty state, the residual water flows down along the gap between the spray rod main body and the sleeve, thereby avoiding the contamination of the bracket or the intelligent toilet cover. The prior art adopts forward drainage, and the residual water is drained upward from the water outlet hole of the spray rod. If the water is drained in the retracted state of the spray rod, once the residual water is contaminated, the bracket or even the intelligent toilet cover will also be contaminated.

[0020] 3. Before the blowing mechanism outputs the first gas after the spray rod stops working, the water inlet hole corresponding to the water outlet hole currently performing the spray cleaning function enters low-pressure water, so that the internal water channel and the water outlet hole of the spray rod can be cleaned by the low-pressure water after the spray rod stops working, thereby avoiding the contamination of the internal water channel and the water outlet hole of the spray rod.

[0021] 4. During the extension of the spray bar, low-pressure water enters the inlet corresponding to the outlet hole that needs to perform the spraying function. This allows the present invention to clean the internal water passage and outlet hole of the spray bar with low-pressure water on the one hand, and to slowly fill the internal water passage of the spray bar with low-pressure water on the other hand, preventing water hammer noise and splashing.

[0022] 5. After the spray bar finishes working, before the blowing mechanism outputs the first gas, the blowing mechanism outputs the second gas, which is blown toward the outer surface of the spray bar. This allows the present invention to dry the water on the surface of the spray bar after it finishes working, preventing the formation of water stains and scale.

[0023] 6. The air nozzle includes the air inlet cap and the air outlet cap, which can ensure that the water outlet hole is fully connected with the corresponding water outlet hole, thereby effectively utilizing the first gas.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the human body washing device and its working method and the smart toilet of the present invention are not limited to the embodiments. Attached Figure Description

[0025] Figure 1 This is a front view (partial exploded view) of the human body cleaning device of the present invention in the retracted state of the spray bar;

[0026] Figure 2 This is a three-dimensional structural diagram of the human body cleaning device of the present invention in the retracted state of the spray bar;

[0027] Figure 3 This is a cross-sectional view of the human body cleaning device of the present invention in the retracted state of the spray bar;

[0028] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0029] Figure 5 yes Figure 3 Enlarged schematic diagram of part B in the middle;

[0030] Figure 6 This is a three-dimensional structural diagram of the human body cleaning device of the present invention in the extended spray bar state;

[0031] Figure 7 This is a cross-sectional view of the human body cleaning device of the present invention in the extended spray bar state;

[0032] Figure 8 yes Figure 7 An enlarged schematic diagram of section C;

[0033] Figure 9 This is a cross-sectional view of the human body cleaning device of the present invention when the spray bar retracts and the air nozzle outputs the first gas;

[0034] Figure 10 is Figure 9 an enlarged schematic view of part D in FIG. 1;

[0035] Figure 11 is Figure 9 an enlarged schematic view of part E in FIG. 1;

[0036] Figure 12 is a schematic view of a three-dimensional structure of the intelligent toilet of the present application;

[0037] Figure 13 is a sectional view of the intelligent toilet of the present application;

[0038] Figure 14 is Figure 13 an enlarged schematic view of part F in FIG. 1;

[0039] Figure 15 is a schematic view of the power-time relationship of the air pump of the present application;

[0040] wherein 1 is a bracket, 2 is a spray rod, 21 is a spray rod body, 211 / 211' is a water inlet hole, 212 / 212' is a water outlet hole, 213 / 213' is an internal waterway, 3 is a water inlet part, 4 is an air nozzle, 41 is an air inlet cover, 42 is an air outlet cover, 43 is a spring, 5 is an extension motor, 6 is a switching motor, 7 is an air pump, 8 is a toilet seat, and 9 is a base. DETAILED DESCRIPTION

[0041] In the present application, the terms "first", "second", and the like are used only to distinguish similar objects, and do not have to be used to describe a particular order or sequence, nor can they be understood to indicate or imply relative importance. In the description, the orientations or positional relationships indicated by "upper", "lower", "front", and "back" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship between the associated objects is described by "and / or", which means that there can be three relationships, for example, A and / or B, and A, and / or B, which can mean that A exists alone, A and B exist together, and B exists alone.

[0043] Please refer to Figures 1-15As shown, the human body cleaning device of the present application comprises a support 1, a spray rod 2 and a blowing mechanism, the spray rod 2 is telescopically arranged on the support 1 along a preset direction and is driven by a first driving mechanism arranged on the support 1, specifically, the preset direction is the front-back direction. The spray rod 2 is provided with at least one water inlet hole 211, at least one water outlet hole 212 and an internal water channel 213 connecting the water inlet hole 211 and the water outlet hole 212, specifically, the number of the water inlet hole 211, the water outlet hole 212 and the internal water channel 213 is multiple respectively, and each water inlet hole 211 corresponds to at least one water outlet hole 212 respectively, and each water inlet hole 211 and the corresponding water outlet hole 212 are connected by the corresponding internal water channel 213 respectively; the water outlet hole 212 is located at the front end of the spray rod 2, and the water outlet direction is inclined upward; the water inlet hole 211 is located at the middle position of the spray rod 2. In this way, the present application contains hip washing function, women washing function and the like. After the spray rod 2 finishes work, the blowing mechanism outputs the first gas, the first gas enters from the water outlet hole 212' currently executing the spray washing function, and blows out the residual water in the spray rod 2 from the water inlet hole 211' corresponding to the water outlet hole 212' currently executing the spray washing function and adjusted to the empty state. The timing of the blowing mechanism outputting the first gas is during the retracting process of the spray rod 2 and / or after the retracting of the spray rod 2, and in the embodiment, the timing of the blowing mechanism outputting the first gas is specifically when the spray rod 2 is retracted to the specified position. The end of the work of the spray rod 2 means the end of the process of cleaning the human body part by the spray rod 2.

[0044] In the embodiment, the spray rod 2 comprises a spray rod main body 21 provided with the water inlet hole 211, the water outlet hole 212 and the internal water channel 213, and a sleeve 22 sleeved outside the spray rod main body 21, after the residual water flows out from the water inlet hole 211 adjusted to the empty state, it flows down along the gap between the spray rod main body 21 and the sleeve 22. In this way, it can avoid the pollution of the residual water to the support 1 or the intelligent toilet cover and the like.

[0045] In the embodiment, after the spray rod 2 finishes work, before the blowing mechanism outputs the first gas, specifically, after the spray rod 2 finishes work, and before the spray rod 2 is retracted to the specified position, the water inlet hole 211 corresponding to the water outlet hole 212 currently executing the spray washing function continuously enters the low-pressure water, the low-pressure water reaches the purpose of cleaning the internal water channel 213 and the water outlet hole 212 of the spray rod 2 from the water outlet hole 212 currently executing the spray washing function, thereby avoiding the dirt entering the water outlet hole 212 or the internal water channel 213 of the spray rod 2. After the spray rod 2 finishes work, before the blowing mechanism outputs the first gas, the blowing mechanism continuously outputs the second gas, the second gas blows to the outer surface of the spray rod 2 to dry the water on the surface of the spray rod 2, preventing the formation of water stains and water scale. The first gas is high-pressure gas, and the wind speed is 30 m / s, the second gas is low-pressure gas, and the wind speed is 10 m / s.

[0046] In the embodiment, the water inlet hole corresponding to the water outlet hole currently performing the spray washing function is continuously supplied with low-pressure water during the extension of the spray rod 2. On the one hand, the internal water channel 213 and the water outlet hole 212 of the spray rod 2 can be cleaned by the low-pressure water; on the other hand, the internal water channel 213 of the spray rod 2 can be slowly filled with the low-pressure water to prevent water hammer noise and splashing. The water pressure of the low-pressure water is 0.01 MPa. When the spray rod 2 is normally working, the spray rod 2 is in the extended state and outputs high-pressure water, as shown in FIG. 2, to clean the human body part. The water pressure of the high-pressure water is 0.05 MPa. Figure 6 Figure 7

[0047] In the embodiment, the spray rod 2 is provided with a water inlet component 3 and a second driving mechanism. The water inlet component 3 is connected to a water source and is driven by the second driving mechanism to switch the communication with the plurality of water inlet holes 211. The water inlet component 3 is separated from the water inlet hole 211' corresponding to the water outlet hole 212' currently performing the spray washing function to realize the opening of the water inlet hole 211'. The water source is a heating device. The water inlet component 3 is connected to the heating device through a water pipe and a water control component. The water control component is a water pump, but is not limited thereto.

[0048] In the embodiment, the air blowing mechanism includes an air nozzle 4 installed on the support 1 and connected to an air source. Specifically, the air nozzle 4 is installed at the front end of the support 1 and cooperates above the spray rod 2. In the state that the air nozzle 4 outputs the first gas, the air nozzle 4 communicates with the water outlet hole 212' currently performing the spray washing function. Before the air nozzle 4 outputs the first gas, there is a gap between the air nozzle 4 and the spray rod 2, which does not affect the extension and retraction movement of the spray rod 2. The air nozzle 4 specifically includes an air inlet cover 41 provided with an air inlet hole and an air outlet cover 42 provided with an air outlet hole. The air inlet cover 41 is installed on the support 1, and the air outlet cover 42 is movably sleeved on the air inlet cover 41. The air inlet hole is connected to the air source and communicates with the air outlet hole. When the air inlet hole inputs the first gas, the air outlet cover 42 is pushed out by the first gas and contacts the outer surface of the spray rod 2, so that the air outlet hole communicates with the water outlet hole 212' currently performing the spray washing function. The air outlet cover 42 cooperates with the support 1 and / or the air inlet cover 41 to have a reset position for resetting. The reset component is a spring 43, but is not limited thereto. The spring 43 is arranged between the air outlet cover 42 and the support 1. The air inlet cover 41 is threadedly connected to the support 1.

[0049] In the embodiment, the air source is an air pump 7 (as shown in FIG. 6). Figure 12 ​​As shown, the first driving mechanism includes a telescopic motor 5, which is mounted on the bracket 1 and is connected to the spray bar 2 via a first transmission assembly; the second driving mechanism includes a switching motor 6, which is mounted on the bracket 1 and is connected to the water inlet component 3 via a second transmission assembly; it also includes a main control board, which is electrically connected to the air pump 7, the telescopic motor 5, and the switching motor 6 to control the coordinated operation of the air pump 7, the telescopic motor 5, and the switching motor 6.

[0050] This invention provides a human body washing device for use in a smart toilet. Specifically, it is installed on the base 9 of the smart toilet seat, with the front end of its spray rod 2 facing the inside of the toilet bowl of the toilet seat 8. Figure 12 , Figure 13 As shown. The following is combined with... Figure 15 This invention describes the working process after the spray bar finishes its operation:

[0051] Assuming that at time t1, the spray bar 2 finishes its operation and switches from high-pressure water output to low-pressure water output, using low-pressure water to clean the internal water passage 213 and the water outlet 212' that has completed the spraying function; at time t2, the spray bar 2 starts to reset, and the air pump 7 starts working at power P1, outputting the second gas to the air nozzle 4. This second gas blows onto the surface of the spray bar 2 to dry the water on its surface; at time t3, the spray bar 2 retracts back to the water outlet 212' that has completed the spraying function, facing the air nozzle 4, and the spray bar 2 stops spraying low-pressure water, while the second gas continues to be output; at time t5, the switching motor 6 drives the water inlet component 3, causing the water inlet component 3 to move away from the water inlet 211' corresponding to the water outlet 212' that has completed the spraying function, leaving the water inlet 211' empty. Figure 10 As shown; at time t6, the air pump 7 operates at power P2, outputting the first gas to the air nozzle 4. This first gas enters the air inlet cover 41 of the air nozzle 4, and the air outlet cover 42 is pushed out by the first gas and contacts the outer surface of the spray bar 2, connecting the air outlet with the water outlet 212' that has just completed the spray washing function. Figure 11 As shown, the first gas enters the water outlet 212' that has completed the spray washing function, blowing out the residual water in the corresponding internal water passage 213'. At time t7, the residual water in the spray bar 2 is completely discharged, the air pump 7 is in an unloaded state, the current drops sharply, and the main control board, upon receiving this current signal, shuts off the air pump 7. The residual water flows out from the water inlet 211' corresponding to the water outlet 212' that has completed the spray washing function, and falls into the toilet bowl of the toilet seat 8 along the gap between the spray bar body 21 and the sleeve 22. Figure 13 , Figure 14As shown, the solid arrow in the figure shows the water flow direction, and the dashed arrow shows the flow direction of the first gas. After the air pump 7 stops working, the air outlet cover 42 of the air nozzle 4 is retracted to the original position under the restoring force of the spring 43, so that the air nozzle 4 and the spray rod 2 restore the initial state of having a gap between each other.

[0052] The human body cleaning device of the present application can ensure that the upstream water quality is not polluted by using the reverse blowing to discharge residual water, and the residual water flows down from the gap between the spray rod body 21 and the sleeve 22, which can avoid the pollution of the residual water to the support 1 or the intelligent toilet cover.

[0053] Please refer to Figures 1-15 As shown, the working method of the human body cleaning device of the present application includes a retractable spray rod 2 and a blowing mechanism. The spray rod 2 is provided with at least one water inlet hole 211, at least one water outlet hole 212, and an internal water channel 213 connecting the water inlet hole 211 and the water outlet hole 212. Specifically, the number of water inlet holes 211, water outlet holes 212, and internal water channels 213 is multiple, and each water inlet hole 211 corresponds to at least one water outlet hole 212, and each water inlet hole 211 and the corresponding water outlet hole 212 are connected by a corresponding internal water channel 213. The water outlet hole 212 is located at the front end of the spray rod 2, and the water outlet direction is inclined upward. The water inlet hole 211 is located at the middle position of the spray rod 2. The working method includes a spray rod extension and spray cleaning step, and the working method also includes a spray rod drainage step: the blowing mechanism outputs a first gas, which enters from each water outlet hole 212 or the water outlet hole 212' currently performing the spray cleaning function, and blows out the residual water in the spray rod 2 from the water inlet hole 211' adjusted to the empty state.

[0054] In this embodiment, the spray rod extension and spray cleaning step and the spray rod drainage step also include a post-spray cleaning step: the water inlet hole 211 corresponding to the water outlet hole 212' currently performing the spray cleaning function enters low-pressure water, and / or the blowing mechanism outputs a second gas, which blows to the outer surface of the spray rod 2. The first gas is high-pressure gas, and the second gas is low-pressure gas.

[0055] In this embodiment, the spray rod extension and spray cleaning step also includes a pre-spray cleaning step: the water inlet hole 211 corresponding to the water outlet hole 212' currently performing the spray cleaning function enters low-pressure water, which cleans the internal water channel 213 and the water outlet hole 212 of the spray rod 2, preventing dirt from entering the water outlet hole 212 or the internal water channel 213 of the spray rod 2. At the same time, the low-pressure water can prefill the internal water channel 213 of the spray rod 2 slowly, preventing water hammer noise and splashing.

[0056] In the embodiment, the spray rod 2 comprises a spray rod body 21 provided with the water inlet hole 211, the water outlet hole 212 and the internal water channel 213, and a sleeve 22 sleeved outside the spray rod body 21, and the residual water flows along the gap between the spray rod body 21 and the sleeve 22 downward after flowing out of the water inlet hole 211' adjusted to the empty state. In this way, the residual water can be prevented from polluting the support 1 or the intelligent toilet cover and the like.

[0057] The working method of the human body cleaning device of the present application can be realized by using the human body cleaning device of the present application described above, and thus the detailed process after the spray rod 2 ends the work is as described above, which will not be repeated here.

[0058] Please refer to Figures 1-15 The intelligent toilet of the present application comprises a toilet seat 8 and an intelligent toilet cover arranged on the toilet seat 8, and the intelligent toilet cover is installed with the human body cleaning device as described above, specifically, the support 1 is installed on the base 9 of the intelligent toilet cover, and the front end of the spray rod 2 faces the bowl of the toilet seat 8.

[0059] The structure and working principle of the human body cleaning device of the intelligent toilet of the present application are described above, which will not be repeated here.

[0060] The human body cleaning device, the working method thereof and the intelligent toilet of the present application are the same as the prior art or can be realized by using the prior art in the non-involved parts (for example, the structure of the first transmission assembly, the second transmission assembly and the instant heating type heating device).

[0061] The above embodiments are only used to further illustrate the human body cleaning device, the working method thereof and the intelligent toilet of the present application, but the present application is not limited to the embodiments, and any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments all fall within the protection scope of the technical scheme of the present application.

Claims

1. A human body washing device, comprising a support, a spray bar, and a blowing mechanism, wherein the spray bar is telescopically mounted on the support in a preset direction and is driven by a first driving mechanism mounted on the support; the spray bar is provided with at least one water inlet, at least one water outlet, and an internal water passage connecting the water inlet and the water outlet; characterized in that: The blowing mechanism outputs first gas after the spray rod finishes work, the first gas enters from each water outlet hole or the water outlet hole currently executing the spray washing function, and blows the residual water in the spray rod from the water inlet hole corresponding to the water outlet hole currently executing the spray washing function and adjusted to the empty state; the water inlet part realizes the water inlet hole empty by leaving the water inlet hole corresponding to the water outlet hole currently executing the spray washing function.

2. The body washing apparatus according to claim 1, characterized by: The spray rod comprises a spray rod body provided with the water inlet hole, the water outlet hole and the internal water path, and a sleeve sleeved outside the spray rod body, and the residual water flows out from the water inlet hole adjusted to the empty state and then flows down along the gap between the spray rod body and the sleeve.

3. The personal cleansing apparatus of claim 1, wherein: The water inlet hole corresponding to the water outlet hole currently executing the spray washing function is supplied with low-pressure water before the blowing mechanism outputs the first gas after the spray rod finishes work.

4. The personal cleansing apparatus of claim 1, wherein: The water inlet hole corresponding to the water outlet hole currently executing the spray washing function is supplied with low-pressure water during the extension of the spray rod.

5. The personal cleansing apparatus of claim 1, wherein: The blowing mechanism outputs second gas before the blowing mechanism outputs the first gas after the spray rod finishes work, the second gas blows to the outer surface of the spray rod; the first gas is high-pressure gas, and the second gas is low-pressure gas.

6. The body washing apparatus according to any one of claims 1 to 5, characterized in that: The blowing mechanism comprises a gas nozzle mounted on the support and connected with a gas source; the gas nozzle communicates with the water outlet hole currently executing the spray washing function in the state that the gas nozzle outputs the first gas.

7. The body washing apparatus according to claim 6, characterized by: The gas nozzle comprises an air inlet cover provided with an air inlet hole and an air outlet cover provided with an air outlet hole, the air inlet cover is mounted on the support, and the air outlet cover is movably sleeved on the air inlet cover; the air inlet hole is connected with the gas source and communicates with the air outlet hole; when the air inlet hole inputs the first gas, the air outlet cover is pushed out by the first gas and contacts the outer surface of the spray rod, so that the air outlet hole communicates with the water outlet hole currently executing the spray washing function; the air outlet cover is matched with the support and / or the air inlet cover to have a reset position for resetting the air outlet cover.

8. The body washing apparatus according to claim 6, characterized by: The number of the water inlet holes, the water outlet holes and the internal water paths is multiple respectively, each water inlet hole corresponds to at least one water outlet hole; the spray rod is mounted with the water inlet part and a second driving mechanism, the water inlet part is connected with a water source and is driven by the second driving mechanism to switch the communication with the multiple water inlet holes.

9. The body washing apparatus according to claim 8, characterized by: The gas source is a gas pump, the first driving mechanism comprises a telescopic motor arranged on the support and in transmission connection with the spray rod through a first transmission assembly; the second driving mechanism comprises a switching motor arranged on the support and in transmission connection with the water inlet part through a second transmission assembly; and a main control board is electrically connected with the gas pump, the telescopic motor and the switching motor to control the gas pump, the telescopic motor and the switching motor to move coordinately.

10. A method of operating a human body washing apparatus, said human body washing apparatus comprising a retractable spray bar and a blowing mechanism, said spray bar being provided with at least one water inlet hole, at least one water outlet hole, and an internal water path connecting the water inlet hole and the water outlet hole; said method of operating comprising a spray bar extension step, characterized in that: The working method further comprises a spray rod drainage step: the blowing mechanism outputs the first gas, the first gas enters from each water outlet hole or the water outlet hole currently executing the spray washing function, and blows the residual water in the spray rod from the water inlet hole adjusted to the empty state; the water inlet part realizes the water inlet hole empty by leaving the water inlet hole corresponding to the water outlet hole currently executing the spray washing function.

11. The method of operating a body washing apparatus according to claim 10, wherein: The spray rod extension spray washing step and the spray rod drainage step further comprise a post-spray cleaning step: the water inlet hole corresponding to the water outlet hole currently performing the spray washing function enters low-pressure water, and / or the air blowing mechanism outputs a second gas that blows against the outer surface of the spray rod; the first gas is high-pressure gas, and the second gas is low-pressure gas.

12. The method of operating a personal cleansing apparatus according to claim 10, wherein: The spray rod extension spray washing step further comprises a pre-spray cleaning step: during the extension of the spray rod, the water inlet hole corresponding to the water outlet hole currently performing the spray washing function enters low-pressure water.

13. A smart toilet comprising a smart toilet lid, characterized by: The intelligent toilet cover is provided with the human body cleaning device according to any one of claims 1-9.

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