A water flow pulse device, a flushing device and a water flow pulse method

Abstract

A water flow pulse device, a flushing device and a water flow pulse method, comprising a housing, the housing being provided with a water flow channel, a driving member and a deforming member, the deforming member being arranged in the housing and provided with a water storage tank, the water storage tank being connected with the water flow channel; the driving member being in transmission connection with the deforming member, and the deforming member being controlled to deform by periodic operation of the driving member so that the water storage tank periodically absorbs and spits water to reduce or increase the water outlet pressure of the water flow channel to realize pulsed water discharge. The invention has a simple structure, controllable pulsation frequency and a long service life.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, in particular to a water flow pulse device, a flushing device and a water flow pulse method. Background Art

[0002] The toilet is a tool for people to excrete, making it smoother and more relaxing. As consumers pay more attention to the quality of life, smart toilets, as a typical representative, are becoming more and more popular in households due to their health, comfort and hygiene.

[0003] The existing intelligent toilet is equipped with a flushing device, which realizes flushing functions such as buttocks washing, women's washing or medicine washing by extending and discharging water through the washing rod. Usually, the flushing water sprayed by the flushing device is sprayed at a certain flow rate or frequency to the part of the human body that needs to be washed to achieve the flushing effect. Recently, a pulsating water spray flushing mode has appeared on the market, which can spray water pulses to clean the washing part. Because the pulsating water spray has a good flushing effect and high flushing comfort, it is loved by many users.

[0004] At present, there are two main methods to achieve the pulsation effect of flushing water. The first method is to achieve pressure pulsation at the water inlet end of the flushing device, that is, to use a pulsating water pump to output pulsed water flow into the flushing device and then spray it out. In this way, due to the periodic changes in the water outlet pressure of the pump, the service life of the pump will be shortened and cannot meet the user's usage needs.

[0005] The second method is to set a structure that can change the flow area in the water channel of the flushing component, and achieve the purpose of generating pulsating water splashes by driving the flow area to change periodically. In this way, since the flow area of ​​the water channel itself is very small, if the flow area is to be changed periodically, the device must be very small and the assembly precision must be high. It has problems such as difficult installation and low reliability. In addition, it is difficult to control the pulsation frequency of the water channel with this existing device. Summary of the invention

[0006] The main purpose of the present invention is to overcome the shortcomings of the water flow pulsation mode in the prior art and to propose a water flow pulse device, a flushing device and a water flow pulse method, which have a simple structure, a long service life and a controllable pulsation frequency.

[0007] The present invention adopts the following technical solution:

[0008] A water flow pulse device includes a shell, the shell is provided with a water flow channel, and is characterized in that: it also includes a driving member and a deforming member, the deforming member is arranged in the shell and is provided with a water storage tank, the water storage tank is connected with the water flow channel; the driving member is in transmission connection with the deforming member, and the deforming member is deformed by controlling the driving member to work periodically to make the water storage tank periodically absorb and discharge water to reduce or increase the water outlet pressure of the water flow channel to realize pulse water discharge. Wherein, the water storage tank is provided with an opening on the side facing the water flow channel, and the inner diameter of the opening is smaller than the inner diameter of the bottom wall of the water storage tank.

[0009] The deformable member is provided with at least one water storage tank, and at least one water storage tank is located in the middle of the deformable member. The deformable member is arranged on one side of the water flow channel, and a stopper extending toward the deformable member is arranged on the other side of the water flow channel, and the stopper is close to the side of the water storage tank relative to the water inlet end of the water flow channel so that the inlet water flows toward the deformable member.

[0010] The driving member is fixed to the side of the deformable member opposite to the water flow channel, and the driving member is also provided with a hole for giving way to the water storage tank; or the driving member is fixed to the side of the deformable member away from the water flow channel. The driving member is a piezoelectric ceramic sheet, which is attached to the deformable member to stimulate the deformable member to resonate and deform during operation.

[0011] The housing includes a cover and a base. The base is provided with a mounting groove, a water cavity, a water inlet and a water outlet. The water cavity is connected with the water inlet and the water outlet and forms the water flow channel. The mounting groove is located on one side of the water cavity and a through hole connected with the water cavity is provided at its bottom. The cover is fixed to the top of the mounting groove; the deformable member is fixed to the bottom of the mounting groove to close the through hole. A gasket is sleeved on the outer periphery of the deformable member; the cover is provided with a convex portion, and the gasket is pressed between the convex ring and the bottom of the mounting groove.

[0012] A flushing device includes a water pump and a flushing component, the water inlet end of the water pump is connected to the water inlet pipe, and is characterized in that it also includes the above-mentioned water flow pulse device, the water outlet end of the water pump is connected to the water inlet end of the water flow channel, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

[0013] A flushing device includes an air pump and a flushing component, the air outlet end of the air pump is connected to a water inlet pipe, and is characterized in that it also includes the above-mentioned water flow pulse device, the water inlet end of the water flow channel is connected to the water inlet pipe, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

[0014] A flushing device includes an air pump, a water pump and a flushing component, wherein the water inlet end of the water pump is connected to a water inlet pipe, and the air outlet end of the air pump is connected to the water outlet end of the water pump. The device is characterized in that it also includes the above-mentioned water flow pulse device, the water inlet end of the water flow channel is connected to the water outlet end of the water pump, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

[0015] A method for water flow pulse, characterized in that: a driving member and a deformable member are added on one side of a water flow channel, the deformable member is provided with a water storage tank connected to the water flow channel, and the driving member is controlled to work periodically to drive the deformable member to deform, so that the water storage tank periodically absorbs and spits water, thereby changing the water outlet pressure of the water flow channel to achieve pulsed water outlet.

[0016] When the driving member is in the first working state, the deformable member deforms in the first direction so that the water storage tank absorbs water and the water outlet pressure becomes smaller; when the driving member is in the second working state, the deformable member deforms in the second direction so that the water storage tank spits out water and the water outlet pressure becomes larger; when the driving member is not working, the deformable member does not deform and the water outlet pressure remains unchanged. A working cycle of the driving member includes one of the first working state, the non-working state and the second working state in different order combinations.

[0017] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, a driving member and a deforming member are arranged on one side of the water flow channel. The driving member is controlled to work periodically to drive the deforming member to deform so that the water storage tank periodically absorbs and spits water to reduce or increase the water outlet pressure of the water flow channel to realize pulsed water discharge. The structure is simple, the pulsation frequency is controllable, and the service life is long.

[0019] 2. In the present invention, a baffle is provided in the water flow channel, which can make the incoming water flow flow toward the deformable member, increase the contact area, and be more conducive to the water storage tank to absorb water; in addition, the position and number of the water storage tanks can be set according to needs, and the water storage tanks are set to have an opening inner diameter smaller than the inner diameter of the bottom wall of the water storage tank. With this shape, when the deformable member is deformed, the size of the opening will also change, which is more conducive to water absorption and water discharge, ensuring that the change in water outlet pressure meets the requirements.

[0020] 3. In the present invention, the driving member can be fixed on the side of the deformation member opposite to the water flow channel or on the side away from the water flow channel. It can realize transmission by gluing and fixing, and has a simple, stable and reliable structure.

[0021] 4. In the present invention, the driving member can be a piezoelectric ceramic sheet, which can excite the deformation member to resonate and produce deformation during operation. The deformation direction of the deformation member can be adjusted by changing the working state, and the flushing water can be further controlled. The pulsation frequency can be changed by adjusting the working cycle. The control method is simple and meets different needs.

[0022] 5. In the present invention, a working cycle of the driving member may include one of different sequential combinations of a first working state, a non-working state and a second working state, which may be set according to demand to meet different water outlet pulse requirements.

[0023] 6. In the present invention, the shell is provided with a cover body and a base, the base is provided with a mounting groove and a water flow channel, the cover body is fixed to the top of the mounting groove; the deformation member is fixed to the bottom of the mounting groove, the overall structure has few parts, low cost, easy disassembly and assembly, and convenient maintenance.

[0024] 7. In the flushing device of the present invention, the water pressure and change cycle of the water flow entering the flushing component can be controlled by the water flow pulse device, and the shape of the sprayed water can be adjusted accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the water flow pulse device of the present invention;

[0026] Figure 2 for Figure 1 Exploded diagram of

[0027] Figure 3 It is a cross-sectional view of the main components of the water pulse device;

[0028] Figure 4 for Figure 1 A cross-sectional view of

[0029] Figure 5 This is a cross-sectional view of the water pulse device (the driving part is not working);

[0030] Figure 6 This is a cross-sectional view of the water pulse device (water storage tank suction);

[0031] Figure 7 It is a cross-sectional view of the water pulse device (water storage tank spouting water);

[0032] Figure 8 It is a structural diagram of the flushing device of the present invention;

[0033] Fig. 9 for Figure 8 Exploded diagram of

[0034] Fig.10 A schematic diagram of the flow velocity of a water droplet of the flushing device of the present invention (the driving member is not working);

[0035] Fig.11 It is a schematic diagram of the flow velocity of a water droplet of the flushing device of the present invention (the driving member is in the first working state);

[0036] Fig.12A schematic diagram of the flow velocity of a water droplet of the flushing device of the present invention (the driving member is in the second working state);

[0037] Fig.13 The schematic diagram of the first stage of the water flow pulse formation of the flushing device of the present invention Figure 1 ;

[0038] Fig.14 The schematic diagram of the second stage of the water flow pulse formation of the flushing device of the present invention Figure 1 ;

[0039] Fig.15 The schematic diagram of the second stage of the water flow pulse formation of the flushing device of the present invention Figure 2 ;

[0040] Fig.16 The third stage principle diagram of the water flow pulse formation of the flushing device of the present invention is shown in FIG. Figure 1 ;

[0041] Fig.17 The third stage principle diagram of the water flow pulse formation of the flushing device of the present invention is shown in FIG. Figure 2 ;

[0042] Fig.18 This is a structural diagram of the flushing device of the present invention (Example 2);

[0043] Fig.19 This is a structural diagram of the flushing device of the present invention (Example 3);

[0044] in:

[0045] 10. Shell, 11. Cover, 11a. Protrusion, 12. Base, 12a. Stopper, 13. Mounting groove, 14. Water cavity, 15. Water inlet, 16. Water outlet, 17. Water flow channel, 18. Through hole, 20. Driving member, 30. Deformation member, 31. Water storage tank, 32. Opening, 33. Gasket, 40. Water pump, 50. Air pump, 60. Flushing assembly, 70. Water inlet pipe.

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0047] The present invention is further described below through specific implementation modes.

[0048] In the present invention, the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and are not intended to indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0050] See also Figures 1 to 4 A water flow pulse device includes a housing 10, a driving member 20, a deformable member 30, etc. The housing 10 is provided with a water flow channel 17, the deformable member 30 is arranged in the housing 10 and is provided with a water storage tank 31, the water storage tank 31 is communicated with the water flow channel 17, the driving member 20 is in transmission connection with the deformable member 30, and the driving member 20 is controlled to work periodically to drive the deformable member 30 to deform so that the water storage tank 31 periodically absorbs and spits water to reduce or increase the water outlet pressure of the water flow channel 17 to achieve pulse water discharge.

[0051] The housing 10 includes a cover 11 and a base 12. The base 12 is provided with a mounting groove 13, a water cavity 14, a water inlet 15, a water outlet 16, etc. The water cavity 14 is connected with the water inlet 15 and the water outlet 16. The water inlet 15, the water outlet 16 and the water cavity 14 together constitute a water flow channel 17. Water can enter the water cavity 14 from the water inlet 15 and flow out through the water outlet 16. The mounting groove 13 is located on one side of the water cavity 14, which can be the top, bottom or side of the water cavity 14. The mounting groove 13 is open at the top and a through hole 18 communicating with the water cavity 14 is provided at the bottom.

[0052] The cover body 11 is fixed to the top of the mounting groove 13, and screws can be used to lock the cover body 11 and the base 12. The deformable member 30 is fixed to the bottom of the mounting groove 13 and can close the through hole 18. A gasket 33 is sleeved on the outer periphery of the deformable member 30, and a convex portion 11a is provided on the inner side of the cover body 11. The gasket 33 is pressed against the bottom of the mounting groove 13 through the convex portion 11a to fix the deformable member 30. A cavity is also provided between the deformable member 30 and the cover body to provide a space for the deformation of the deformable member. The gasket 33 is used to fix the deformable member 30, and the gap between the deformable member 30 and the water cavity 14 can also be sealed to prevent water leakage. The convex portion 11a can be annular, and its shape is adapted to the shape of the gasket 33, or it can be a block-shaped convex portion 11a, and multiple convex portions 11a are arranged according to the shape of the outer periphery of the gasket 33.

[0053] In the present invention, the deformable member 30 is in the form of a sheet, which can be deformed under the action of an external force. The deformation can be that the middle part of the deformable member 30 convexes upward or returns downward along the direction perpendicular to the deformable member 30. In this embodiment, the deformable member 30 can be a metal sheet, but is not limited thereto. The number of the deformable member 30 can be one or more sheets, which can be set according to needs, preferably one sheet.

[0054] In the present invention, a blocking portion 12a extending toward the deformable member 30 is provided on the other side of the water flow channel 17, that is, the bottom side of the water cavity 14. The blocking portion 12a is close to the side of the water storage tank 31 opposite to the water inlet end of the water flow channel 17. The blocking portion 12a is provided so that the water flow entering the water cavity 14 from the water inlet 15 is blocked by the blocking portion 12a, changing the direction of the water flow to flow toward the deformable member 30, which can increase the contact area between the water flow and the deformable member 30.

[0055] The deformable member 30 is provided with at least one water storage tank 31, and at least one water storage tank 31 is located in the middle of the deformable member 30. By adjusting the number or size of the water storage tanks 31, the change in the water outlet pressure can be adjusted, and then the pulse intensity can be adjusted. In this embodiment, one water storage tank 31 is taken as an example, and the water storage tank 31 is located in the middle of the deformable member 30.

[0056] Furthermore, the water tank 31 is provided with an opening 32 on the side facing the water flow channel 17, and the inner diameter of the opening 32 is smaller than the inner diameter of the bottom wall of the water tank 31, that is, the water tank 31 is set to be small on the outside and large on the inside. When the deformable member 30 is deformed, the size of the opening 32 will also change. When the middle part of the deformable member 30 is convex, the opening 32 becomes smaller after the water tank 31 absorbs water, so that water can be better stored; when the middle part of the deformable member 30 returns to its position downward, the opening 32 returns to its position during the water tank 31 spits out water, so that the water inside can be squeezed out.

[0057] The driving member 20 is fixed to the side of the deformable member 30 opposite to the water flow channel 17. The driving member 20 is also provided with a hole for making way for the water storage tank 31. The setting of the blocking portion 12a can also increase the contact area between the water flow and the driving member 20. The driving member 20 of the present invention can drive the deformable member 30 to deform in different directions.

[0058] In this embodiment, the driving member 20 can be a piezoelectric ceramic sheet, which is attached to the deformation member 30 to stimulate the deformation member 30 to resonate and deform during operation. When a positive voltage is applied to the piezoelectric ceramic sheet, the piezoelectric ceramic vibrates to generate a positive force, and when a reverse voltage is applied to the piezoelectric ceramic sheet, the piezoelectric ceramic vibrates to generate a reverse force. The piezoelectric property is used to drive the deformation member 30 to deform and change the water pressure of the water flow. Among them, when the piezoelectric ceramic sheet is working, it can also cause the surrounding liquid to be atomized.

[0059] The present invention also proposes a method for water flow pulse, which is implemented by the above-mentioned device, by adding a driving member 20 and a deformable member 30 on one side of the water flow channel 17, and the deformable member 30 is provided with a water storage tank 31 connected to the water flow channel 17. By controlling the driving member 20 to work periodically to drive the deformable member 30 to deform, the water storage tank 31 periodically absorbs and spits water, thereby changing the water outlet pressure of the water flow channel 17 to achieve pulsed water outlet.

[0060] See also Figure 5 When the driving member 20 is not working, the deformable member 30 does not deform, and the outlet water pressure of the water flow channel 17 remains unchanged. In this embodiment, it is set that when a forward voltage is applied to the driving member 20, the driving member 20 is in the first working state, and when a reverse voltage is applied to the driving member 20, the driving member 20 is in the second working state.

[0061] See also Figure 6 When the driving member 20 is in the first working state, its positive force is an upward force, which can be used as the first direction. The middle part of the deformable member 30 deforms in the first direction, that is, convex upward, and the water storage tank 31 and the water flow channel 17 produce a relative divergent movement. Negative pressure is generated in the water storage tank 31, and the surrounding water is sucked in, and the water outlet pressure becomes smaller, wherein the sucked water may include liquid and atomized water.

[0062] See also Figure 7 When the driving member 20 is in the second working state, its reverse force is the downward force, which can be used as the second direction. The middle part of the deformable member 30 deforms in the second direction, that is, returns downward, and the water storage tank 31 and the water flow channel 17 produce relative squeezing movement. A positive pressure is generated in the water storage tank 31, squeezing out the water inside, that is, spitting out water, and the water outlet pressure becomes larger.

[0063] In the device and method of the present invention, one working cycle of the driving member 20 includes one of different sequential combinations of the first working state, the non-working state and the second working state, for example, in the order of the non-working state, the first working state and the second working state. Assuming that when the driving member 20 is not working, the water outlet pressure of the water flow channel 17 is medium pressure, then in the first working state, the water outlet pressure of the water flow channel is low pressure, and in the second working state, the water outlet pressure of the water flow channel is high pressure. In one working cycle of the driving member 20, the water flow in the water flow channel 17 includes three state changes of low pressure, medium pressure and high pressure, and correspondingly, the water outlet flow rate has three states of low speed, medium speed and high speed, thereby generating a pulsed water flow.

[0064] Based on this, see Figure 8 and Fig. 9 The present invention also proposes a flushing device, including a water pump 40 and a flushing component 60, wherein the water inlet end of the water pump 40 is connected to the water inlet pipe 70, and also includes the above-mentioned water flow pulse device, wherein the water outlet end of the water pump 40 is connected to the water inlet end of the water flow channel 17, and the water outlet end of the water flow channel 17 is connected to the water inlet end of the flushing component 60.

[0065] The water inlet pipe 70 can be connected to the water tank, and the water pump 40 draws the cleaning water from the water inlet pipe 70, outputs the water with a certain water pressure through the output end to the water pulse device, and outputs the pulsed water from the water pulse device to the flushing component 60 for spraying for cleaning. If necessary, a heating chamber can be set between the pump and the water pulse device, and a heating component is set in the heating chamber to heat the water to improve the cleaning comfort.

[0066] In this embodiment, the pulse water discharge principle of the flushing device of the present invention is described in detail below:

[0067] like Fig.10 As shown, when the driving member 20 is not working, the water pressure of the water pulse device is less than the water pressure in the second working state and greater than the water pressure in the first working state. At this time, the water outlet speed of the water outlet 16 of the housing 10 is set to V1. Fig.11 As shown, the driving member 20 is in the first working state, at which time the water pressure of the water pulse device is at the minimum, and the water outlet speed is set to V2, which is also the minimum. Fig.12 As described above, when the driving member 20 is in the second working state, the water pressure of the water flow pulse device is at the maximum, the water outlet speed is set to V3, which is also the maximum, and V2<V1<V3 is satisfied.

[0068] According to the above-mentioned water discharge state, there are three speeds of water discharge from the flushing component 60. During the water discharge process, due to the difference in speed, there is a process of catching up between the water flows, which can be described in three time periods:

[0069] The first stage: i.e. the start stage, the water flow position distribution of the water outlet of the flushing component 60 is as shown in Fig.13 As shown in the figure, the slowest water droplet with a value of V2 is at the front; the water droplet with a medium speed (relative to the speed of the water droplets in front and behind) with a value of V1 is in the middle; the fastest water droplet with a value of V3 is at the back.

[0070] The second stage: Fig.14 As shown in the figure, the water droplet with speed V3 catches up with the water droplet with speed V1 and merges into a new water droplet with speed V1'. V1' is greater than V2, and the two water drops move outward at the same time. Fig.15 As shown in the figure, the water droplet with speed V1 catches up with the water droplet with speed V2 and merges into a new water droplet with speed V1'. V3 is greater than the value of V1', and the two water drops move outward at the same time.

[0071] The third stage: Fig.16 As shown in the figure, the water droplet with speed V1' catches up with the water droplet with speed V2 and merges into a new water droplet with speed V2'. At this point, the three water droplets merge into a large water droplet and spray outward. Or as Fig.17 As shown, at this time, the water droplet with a speed of V3 catches up with the water droplet with a speed of V1' and merges into a new water droplet with a speed of V2'. At this point, the three water droplets merge into a large water droplet and spray outward.

[0072] The above three stages constitute a cycle. The water droplets with high speed catch up with the water droplets with low speed and merge into water droplets with larger volume. There is a chasing phenomenon before reaching the flushing part. However, when the water flow volume reaches a certain value, the water flow volume no longer increases and shoots toward the flushing part to form a pulsating flushing flow.

[0073] Embodiment 2

[0074] A water flow pulse device, a flushing device and a water flow pulse method, the main structure of which is the same as that of the first embodiment, except that: Fig.18 The flushing device includes an air pump 50 and a flushing component 60. The air outlet end of the air pump 50 is connected to the water inlet pipe 70, the water inlet end of the water flow channel 17 is connected to the water inlet pipe 70, and the water outlet end of the water flow channel 17 is connected to the water inlet end of the flushing component 60.

[0075] In this embodiment, the booster pump is not installed, and the air pump 50 is connected to the water circuit to achieve the purpose of mixing and pressurizing, and then enters the water pulse device to achieve water pressure pulsation, and finally sprays out from the flushing component 60. The rest of the working principle is the same as that of the first embodiment.

[0076] Embodiment 3

[0077] A water flow pulse device, a flushing device and a water flow pulse method, the main structure of which is the same as that of the first embodiment, except that: Fig.19 The flushing device includes an air pump 50, a water pump 40 and a flushing component 60. The water inlet end of the water pump 40 is connected to the water inlet pipe 70, the air outlet end of the air pump 50 is connected to the water outlet end of the water pump 40, the water inlet end of the water flow channel 17 is connected to the water outlet end of the water pump 40, and the water outlet end of the water flow channel 17 is connected to the water inlet end of the flushing component 60.

[0078] In this embodiment, water is mixed and pressurized by the water pump 40 and the air pump 50, then enters the water pulse device to achieve water pressure pulsation, and finally sprayed out from the flushing assembly 60. The rest of the working principle is the same as that of the first embodiment.

[0079] Embodiment 4

[0080] A water flow pulse device, a flushing device and a water flow pulse method, whose main structure is the same as that of the first embodiment, except that: the driving member 20 is fixed to the side of the deformation member 30 away from the water flow channel 17, that is, the driving member 20 may not be in direct contact with the water flow channel 17.

[0081] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A water flow pulse device, comprising a housing, the housing being provided with a water flow channel, characterized in that: It also includes a driving member and a deformation member, wherein the deformation member is arranged in the housing and is provided with a water storage tank, and the water storage tank is communicated with the water flow channel; the driving member is in transmission connection with the deformation member, and the deformation of the deformation member is driven by controlling the driving member to work periodically so that the water storage tank periodically absorbs and discharges water to reduce or increase the water outlet pressure of the water flow channel to realize pulse water discharge; The water tank is provided with an opening on the side facing the water flow channel, and the inner diameter of the opening is smaller than the inner diameter of the bottom wall of the water tank; the deformable member is provided with at least one water tank, and at least one water tank is located in the middle of the deformable member. When the middle part of the deformable member is convex, the opening of the water tank becomes smaller after absorbing water, so that water can be better stored; when the middle part of the deformable member returns to its position downward, the opening returns to its position during the water spitting process of the water tank, so that the water inside can be squeezed out.

2. A water flow pulse device as claimed in claim 1, characterized in that: The deformable member is arranged on one side of the water flow channel, and a blocking portion extending toward the deformable member is arranged on the other side of the water flow channel. The blocking portion is close to the side of the water storage tank relative to the water inlet end of the water flow channel to make the inlet water flow toward the deformable member.

3. A water flow pulse device as claimed in claim 1, characterized in that: The driving member is fixed to the side of the deformable member opposite to the water flow channel, and the driving member is also provided with a hole for giving way to the water storage tank; or the driving member is fixed to the side of the deformable member away from the water flow channel.

4. A water flow pulse device as claimed in claim 1, characterized in that: The driving member is a piezoelectric ceramic sheet, which is attached to the deformable member to stimulate the deformable member to resonate and deform during operation.

5. A water flow pulse device as claimed in claim 1, characterized in that: The shell includes a cover body and a base, the base is provided with a mounting groove, a water cavity, a water inlet and a water outlet, the water cavity is connected with the water inlet and the water outlet and constitutes the water flow channel, the mounting groove is located on one side of the water cavity and a through hole connected to the water cavity is provided at its bottom end, the cover body is fixed to the top of the mounting groove; the deformable member is fixed to the bottom of the mounting groove to close the through hole.

6. A water flow pulse device as claimed in claim 5, characterized in that: A gasket is sleeved on the outer periphery of the deformable member; the cover body is provided with a convex portion, and the gasket is pressed tightly between the convex portion and the bottom end of the mounting groove.

7. A flushing device, comprising a water pump and a flushing assembly, wherein the water inlet end of the water pump is connected to the water inlet pipe, and is characterized in that: It also includes a water flow pulse device as described in any one of claims 1 to 6, the water outlet end of the water pump is connected to the water inlet end of the water flow channel, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

8. A flushing device, comprising an air pump and a flushing assembly, wherein the air outlet of the air pump is connected to a water inlet pipe, and characterized in that: It also includes a water flow pulse device as described in any one of claims 1 to 6, wherein the water inlet end of the water flow channel is connected to the water inlet pipe, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

9. A flushing device, comprising an air pump, a water pump and a flushing assembly, wherein the water inlet end of the water pump is connected to the water inlet pipe, and the air outlet end of the air pump is connected to the water outlet end of the water pump, characterized in that: It also includes a water flow pulse device as described in any one of claims 1 to 6, wherein the water inlet end of the water flow channel is connected to the water outlet end of the water pump, and the water outlet end of the water flow channel is connected to the water inlet end of the flushing component.

10. A water flow pulse method, characterized in that: The water flow pulse device described in claim 1 is adopted to realize the water flow pulse device, wherein a driving member and a deformable member are added on one side of the water flow channel, and the deformable member is provided with a water storage tank connected to the water flow channel. The driving member is controlled to work periodically to drive the deformable member to deform, so that the water storage tank periodically absorbs and spits water, thereby changing the water outlet pressure of the water flow channel to realize pulse water outlet.

11. A water flow pulse method as claimed in claim 10, characterized in that: When the driving member is in the first working state, the deformable member deforms in the first direction so that the water storage tank absorbs water and the water outlet pressure becomes smaller; When the driving member is in the second working state, the deformable member deforms in the second direction so that the water storage tank spits out water and the water outlet pressure increases; when the driving member is not working, the deformable member does not deform and the water outlet pressure remains unchanged.

12. A water flow pulse method according to claim 11, characterized in that: A working cycle of the driving member includes one of different sequential combinations of the first working state, the non-working state and the second working state.

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