A shower device of a washing machine and a washing machine

Abstract

The application discloses a shower device of a washing machine and the washing machine. The shower device comprises a shower box, a water inlet pipe, and a deformable cap. The bottom surface of the shower box is provided with a flow-out hole and a plurality of spray holes. The water inlet pipe is used for supplying water to the shower box. The deformable cap can be deformed under the action of water inlet pressure and close the flow-out hole, and can reset after the water inlet pressure is cancelled and make the water in the shower box flow out from the flow-out hole. When water is supplied to the shower box, the deformable cap is deformed under the action of water inlet pressure and closes the flow-out hole, so that the water in the shower box flows out from the spray holes downwards, and normal spraying of the shower device is realized. After the water inlet valve is closed, the water inlet pressure is cancelled, the deformable cap resets, the gravity of the water at the flow-out hole first overcomes the surface tension and drops down, a negative pressure is generated in the shower box, air enters from the spray holes, so that the water flows out from the flow-out hole, rapid flow-out is realized, and slow dripping and residual of the water in the shower box are prevented.

Description

Technical Field

[0001] This invention belongs to the field of washing machine technology, specifically relating to a shower head device for a washing machine and a washing machine having the shower head device. Background Technology

[0002] As people's living standards continue to improve, washing machines have gradually become one of the essential home appliances in people's homes, and most people regard washing machines as the main tool for washing clothes.

[0003] With continuous innovation and improvement in washing machine technology, most washing machines now come equipped with a water inlet box assembly for adding laundry detergent or fabric softener. This assembly typically consists of a water inlet box, a spray box, and a material dispenser, where the dispenser includes at least one of the following: laundry detergent dispenser, fabric softener dispenser, or detergent dispenser. The main function of the spray box in the water inlet box assembly is to evenly mix the laundry detergent or fabric softener and add it to the inner drum of the washing machine for washing.

[0004] The existing shower box has the following shortcomings in use: when the water inlet valve is closed, the inside of the shower box cannot directly communicate with the air, and the water supply pressure disappears. Although the water in the shower box is affected by gravity, it needs to overcome the surface tension of the water and the negative pressure generated when the water flows out. Therefore, the residual water in the shower box will not flow out quickly, but will drip slowly, and there will always be a certain amount of water remaining in the shower box. This leads to the following problems: 1. After the washing machine is finished, the dripping water still produces noise, making users feel that the washing machine is malfunctioning, resulting in user complaints or after-sales costs; 2. Long-term water retention will lead to scale buildup, reducing the orifice diameter or even clogging the spray nozzles, requiring manual cleaning; 3. The residual water in the shower box for too long will lead to the growth of bacteria.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention proposes a shower head device for a washing machine. By incorporating a drain hole and a deformable cap, it enables rapid drainage after the water inlet to the shower head box is closed, preventing dripping and residue.

[0007] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0008] A shower head device for a washing machine, comprising:

[0009] The shower box has a drain hole and multiple spray holes on its bottom surface;

[0010] The water inlet pipe is used to supply water to the shower box;

[0011] The deformable cap can deform under the action of inlet water pressure to close the drain hole, and can be reset after the inlet water pressure is removed to allow water in the shower box to flow out from the drain hole;

[0012] The area of ​​the drain hole is larger than the area of ​​the spray hole.

[0013] Furthermore, it also includes at least one connecting hole for connecting the interior of the shower box and the drain hole, wherein the total area of ​​all the connecting holes is greater than or equal to the area of ​​the drain hole.

[0014] Furthermore, the connecting hole is provided along the bottom edge of the deformable cap to reduce the rigidity of the root of the deformable cap due to fixing, making it easier for the deformable cap to deform and block the drain hole when water pressure is applied.

[0015] Furthermore, the ratio of the total area of ​​the connecting holes to the area of ​​the drain holes is 1 to 2.

[0016] Preferably, the ratio of the total area of ​​the connecting holes to the area of ​​the drain holes is 1.5.

[0017] Furthermore, the deformable cap is fixed inside the shower box and snapped onto the top of the drain hole.

[0018] Furthermore, the ratio of the area of ​​the vent hole to the area of ​​the spray hole is 4 to 20.

[0019] Preferably, the ratio of the area of ​​the vent hole to the area of ​​the spray hole is 8 to 12.

[0020] Furthermore, the deformable cap has a lower open arc surface structure, and the lower end of the deformable cap is fixed to the bottom surface of the shower box.

[0021] Furthermore, the lower opening of the deformable cap is circular, and the ratio of the diameter of the lower opening to the diameter of the vent hole is 3 to 5.

[0022] Preferably, the ratio of the diameter of the lower opening to the diameter of the drain hole is 4.

[0023] Furthermore, the connecting hole is formed on the deformable cap, and the projection of the connecting hole on the bottom surface of the shower box is located outside the drain hole.

[0024] Furthermore, a sealing edge extending upward is provided along the edge of the vent hole, and the sealing edge makes sealing contact with the deformable cap to achieve the sealing of the vent hole by the deformable cap.

[0025] Furthermore, the plane containing the upper end of the sealing edge passes through the connecting hole on the deformable cap in its undeformed state.

[0026] Furthermore, the connecting hole is arc-shaped, and the plane containing the upper end of the sealing edge is lower than the center of the connecting hole.

[0027] Furthermore, an upwardly extending mounting edge is provided on the bottom surface of the shower box, the deformable cap is provided on the mounting edge, the connecting hole is provided on the mounting edge, and the mounting edge surrounds the outside of the drain hole.

[0028] Based on the above-mentioned shower head device, the present invention also provides a washing machine having the shower head structure, which, by setting a drain hole and a deformable cap, enables rapid drainage after the water inlet of the shower head box is closed, preventing dripping and residue.

[0029] A washing machine having the above-described shower head structure.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are as follows: By setting a drain hole and a deformable cap, when water enters the shower box, the deformable cap deforms under the action of the incoming water pressure and closes the drain hole, allowing the water in the shower box to flow downward from the spray hole, thus achieving normal spraying of the shower device. After the water inlet valve is closed, the water inlet ends, and the water pressure is removed, causing the deformable cap to reset, so that the drain hole is no longer closed. Moreover, the area of ​​the drain hole is larger than the area of ​​the spray hole, so that the gravity of the water at the drain hole first overcomes the surface tension and drips down; this creates a negative pressure inside the shower box, allowing air to enter from the spray hole, thereby promoting the water to flow out from the drain hole, achieving rapid drainage, and helping to prevent slow dripping and residue of water in the shower box.

[0031] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the first embodiment of a shower head device for a washing machine proposed in this invention;

[0034] Figure 2 for Figure 1 Enlarged structural diagram of the central effluent orifice and deformable cap;

[0035] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the middle AA direction;

[0036] Figure 4 for Figure 1 A schematic diagram of the structure under water intake conditions;

[0037] Figure 5 This is a schematic diagram of the structure of a second embodiment of a shower head device for a washing machine proposed in this invention;

[0038] Figure 6 for Figure 5 Enlarged structural diagram of the central effluent orifice and deformable cap;

[0039] Figure 7 This is a schematic diagram of the third embodiment of a shower head device for a washing machine proposed in this invention;

[0040] Figure 8 for Figure 7 Enlarged structural diagram of the vent hole and deformable cap. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] In the description of this invention, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Example 1

[0045] See Figures 1-4 This is the first embodiment of a shower head device for a washing machine proposed in this invention. The shower head device for a washing machine includes: a shower head box 10, a water inlet pipe 20, and a deformable cap 30. A drain hole 12 and multiple spray holes 11 are provided on the bottom surface of the shower head box 10. The area of ​​the drain hole 12 is larger than the area of ​​the spray holes 11. The water inlet pipe 20 is connected to the shower head box 10 to supply water to the shower head box 10. The deformable cap 30 is deformed to close and open the drain hole 12. Under the action of the water inlet pressure, the deformable cap 30 deforms and closes the drain hole 12. After the water inlet pressure is removed, the deformable cap 30 resets and uncloses the drain hole 12, so that the water in the shower head box 10 flows out from the drain hole 12. By setting the drain hole 12 and the deformable cap 30, when water enters the shower box 10, the deformable cap 30 quickly deforms downward under the action of the incoming water pressure, and closes the drain hole 12, so that the water in the shower box 10 flows out evenly downward from multiple spray holes 11, realizing the normal spraying of the shower device. After the water inlet valve is closed, the water inlet ends and the water pressure is removed, so the deformable cap 30 returns to its original position, so that the drain hole 12 is no longer closed. Since the area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, the gravity of the water at the drain hole 12 first overcomes the surface tension and drips down; this creates a negative pressure in the shower box 10, so that air enters from the spray hole 11, thereby promoting the water to flow out from the drain hole 12, realizing rapid drainage, which helps to prevent the slow dripping and stagnation of water in the shower box 10.

[0046] See Figure 2 and Figure 3As shown, the shower device also includes at least one connecting hole 40, which is used to connect the interior of the shower box 10 and the drain hole 12. To facilitate the description of the spatial relationship within the shower box 10, the space between the deformable cap 30 and the bottom surface of the shower box 10 is defined as the inner cap space 15, and the space outside the inner cap space 15 within the shower box 10 is defined as the outer cap space 16. That is, the inner cap space 15 and the outer cap space 16 constitute the inner space of the shower box 10; the connecting hole 40 connects the inner cap space 15 and the outer cap space 16. After the inlet water pressure is released, the deformable cap 30 returns to its original position, allowing water in the outer space 16 to enter the inner space 15 through the connecting hole 40. Water entering the inner space 15 from the outer space 16 does not require additional force. Water at the drain hole 12 flows down under gravity, creating a negative pressure in the inner space 15. At this time, water in the outer space 16 enters the inner space 15 through the connecting hole 40. If outside air were to enter the inner space 15 through the drain hole 12, it would need to overcome the gravity and surface tension of the water. Therefore, when the inner space 15 is under negative pressure, outside air... Water from space 16 enters space 15 inside the shower head, creating a negative pressure inside the shower head box 10. Both the space outside the shower head 16 and the space inside the shower head 15 are under negative pressure. Water continues to flow out from the drain hole 12, further increasing the negative pressure inside the shower head box 10. This allows air to enter the shower head box 10 through the spray hole 11, compensating for the negative pressure inside the shower head box 10. As the water from the drain hole 12 creates negative pressure inside the shower head box 10, air from the spray hole 11 compensates for the negative pressure inside the shower head box 10, making the pressure inside the shower head box 10 close to or equal to the external atmospheric pressure, causing the water inside the shower head box 10 to flow out rapidly.

[0047] The deformable cap 30 is provided with multiple connecting holes 40. The area of ​​a single connecting hole 40 is smaller than the area of ​​the drain hole 12, and the total area of ​​the multiple connecting holes 40 is larger than the area of ​​the drain hole 12. This ensures that after the water inlet is finished, when the deformable cap 30 resets, water in the outer space 16 enters the inner space 15 of the cap through the connecting holes 40, and that when the inner space 15 is under negative pressure after water flows out from the drain hole 12, water in the outer space 16 enters the inner space 15 of the cap through the connecting holes 40; thus ensuring rapid drainage of water in the shower box 10.

[0048] In this embodiment, the ratio of the total area of ​​the connecting hole 40 to the area of ​​the drain hole 12 is 1 to 2, ensuring unobstructed flow and equal pressure between the inner space 15 and the outer space 16 of the cap; preferably, the ratio of the total area of ​​the connecting hole 40 to the area of ​​the drain hole 12 is 1.5. The area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, and the ratio of the area of ​​the drain hole 12 to the area of ​​the spray hole 11 is 4 to 20, preferably 8 to 12. For ease of processing and strength, the spray hole 11, the drain hole 12, and the connecting hole 40 are all preferably circular.

[0049] In this embodiment, the deformable cap 30 is fixed to the bottom surface of the shower box 10 and snapped onto the top of the drain hole 12. The connecting hole 40 is formed on the deformable cap 30. When the inlet water pressure is removed, water flows out of the drain hole 12, that is, water flows out of the space 15 inside the cap, allowing negative pressure to be transmitted to the shower box 10. This allows air to enter the shower box 10 through the spray hole 11, and water in the shower box 10 can reach the drain hole 12 through the connecting hole 40 and flow out. The negative pressure generated at the drain hole 12 inside the shower box 10 is transmitted to the shower box 10 outside the deformable cap 30 through the connecting hole 40, allowing air to enter the shower box 10 through the spray hole 11, thereby promoting water to flow out from the drain hole and achieving rapid drainage.

[0050] In order to ensure that the drain hole 12 is sealed after the deformable cap 30 is deformed by pressure, the projection of the connecting hole 40 on the bottom surface of the shower box 10 is located outside the drain hole 12, that is, the projection of the connecting hole 40 on the bottom surface of the shower box 10 does not fall into the drain hole 12.

[0051] The deformable cap 30 has a circular lower opening, with the connecting hole 40 located near the lower opening. This design reduces the rigidity increase at the base of the deformable cap 30 due to fixing, making it easier to seal the drain hole 12 under water pressure. The ratio of the diameter of the lower opening to the diameter of the drain hole 12 is 3 to 5; preferably, the ratio is 4. The deformable cap 30 is made of a flexible, sealable material such as rubber or silicone.

[0052] Example 2

[0053] See Figures 5-6 This is the second embodiment of a shower head device for a washing machine proposed in this invention. The main difference between this embodiment and the first embodiment is that a sealing edge is provided, while the other structures can be the same as those in the first embodiment.

[0054] A shower head device for a washing machine includes: a shower head box 10, a water inlet pipe 20, and a deformable cap 30. A drain hole 12 and multiple spray holes 11 are provided on the bottom surface of the shower head box 10. The area of ​​the drain hole 12 is larger than the area of ​​the spray holes 11. The water inlet pipe 20 is connected to the shower head box 10 to supply water to the shower head box 10. The deformable cap 30 is deformed to close and open the drain hole 12. Under the action of the inlet water pressure, the deformable cap 30 deforms and closes the drain hole 12. After the inlet water pressure is removed, the deformable cap 30 resets and uncloses the drain hole 12, allowing water in the shower head box 10 to flow out from the drain hole 12. By setting the drain hole 12 and the deformable cap 30, when water enters the shower box 10, the water pressure causes part of the deformable cap 30 to move downwards and deform, sealing the drain hole 12. This allows water in the shower box 10 to flow downwards from the spray hole 11, achieving normal water intake for the shower device. After the water inlet valve is closed, water intake ends, and the water pressure is removed, causing the deformable cap 30 to reset. This removes the seal from the drain hole 12, and since the area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, the gravity of the water at the drain hole 12 overcomes the surface tension and flows down. This creates a negative pressure inside the shower box 10, allowing air to enter from the spray hole 11, thereby promoting water flow out from the drain hole 12 and achieving rapid drainage. This helps prevent slow dripping and stagnation of water in the shower box 10.

[0055] See Figure 6As shown, the shower device also includes at least one connecting hole 40, which is used to connect the interior of the shower box 10 and the drain hole 12. To facilitate the description of the spatial relationship within the shower box 10, the space between the deformable cap 30 and the bottom surface of the shower box 10 is defined as the inner cap space 15, and the space outside the inner cap space 15 within the shower box 10 is defined as the outer cap space 16. That is, the inner cap space 15 and the outer cap space 16 constitute the inner space of the shower box 10; the connecting hole 40 connects the inner cap space 15 and the outer cap space 16. After the inlet water pressure is released, the deformable cap 30 returns to its original position, allowing water in the outer space 16 to enter the inner space 15 through the connecting hole 40. Water entering the inner space 15 from the outer space 16 does not require additional force. Water at the drain hole 12 flows out under gravity, creating a negative pressure in the inner space 15. At this time, water in the outer space 16 enters the inner space 15 through the connecting hole 40. If outside air were to enter the inner space 15 through the drain hole 12, it would need to overcome the gravity and surface tension of the water. Therefore, with the inner space 15 under negative pressure, the outer space 16... Water enters the inner space 15 of the shower box, creating a negative pressure inside the shower box 10. Both the outer space 16 and the inner space 15 of the shower box are under negative pressure. Water continues to flow out of the drain hole 12, further increasing the negative pressure inside the shower box 10. This allows air to enter the shower box 10 through the spray hole 11, compensating for the negative pressure inside the shower box 10. As the drain hole 12 creates negative pressure inside the shower box 10, air enters through the spray hole 11 to compensate for the negative pressure inside the shower box 10, making the pressure inside the shower box 10 close to or equal to the external atmospheric pressure, causing the water inside the shower box 10 to flow out rapidly.

[0056] Multiple connecting holes 40 are provided on the deformable cap 30. The total area of ​​all connecting holes 40 is greater than or equal to the area of ​​the drain hole 12. This ensures that after the water inlet is finished, when the deformable cap 30 is reset, the water in the outer space 16 enters the inner space 15 of the cap through the connecting holes 40. Also, after the water flows out of the drain hole 12 and the inner space 15 of the cap is under negative pressure, the water in the outer space 16 enters the inner space 15 of the cap through the connecting holes 40. This ensures the rapid drainage of water in the shower box 10.

[0057] In this embodiment, the ratio of the total area of ​​the multiple connecting holes 40 to the area of ​​the drain hole 12 is 1 to 2, ensuring unobstructed flow and equal pressure between the inner space 15 and the outer space 16 of the cap; preferably, the ratio of the total area of ​​the connecting holes 40 to the area of ​​the drain hole 12 is 1.5. The area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, and the ratio of the area of ​​the drain hole 12 to the area of ​​the spray hole 11 is 4 to 20, preferably 8 to 12. For ease of processing and strength, the spray hole 11, the drain hole 12, and the connecting holes 40 are preferably all circular.

[0058] In this embodiment, the deformable cap 30 is fixed to the bottom surface of the shower box 10 and snapped onto the top of the drain hole 12. The connecting hole 40 is opened at the base of the deformable cap 30. When the inlet water pressure is removed, the water flows out of the drain hole 12, that is, the water in the cap's inner space 15 flows out, allowing negative pressure to be transmitted to the shower box 10. This allows air to enter the shower box 10 through the spray hole 11; and the water in the shower box 10 can reach the drain hole 12 through the connecting hole 40 and flow out. This allows the negative pressure generated at the drain hole 12 in the shower box 10 to be transmitted to the shower box 10 outside the deformable cap 30 through the connecting hole 40, allowing air to enter the shower box 10 through the spray hole 11, thereby promoting the water to flow out from the drain hole and achieving rapid drainage.

[0059] In order to ensure that the drain hole 12 is sealed after the deformable cap 30 is deformed by pressure, the projection of the connecting hole 40 on the bottom surface of the shower box 10 is located outside the drain hole 12, that is, the projection of the connecting hole 40 on the bottom surface of the shower box 10 does not fall into the drain hole 12.

[0060] The lower opening of the deformable cap 30 is circular, and a plurality of connecting holes 40 are provided circumferentially near the lower opening. The ratio of the diameter of the lower opening to the diameter of the drain hole 12 is 3 to 5; preferably, the ratio of the diameter of the lower opening to the diameter of the drain hole 12 is 4.

[0061] In this embodiment, to reduce the deformation of the deformable cap 30 and ensure sealing, a sealing edge 13 extending upwards is provided along the edge of the drain hole 22. This sealing edge 13 approaches the deformable cap 30, and under the action of the inlet water pressure, the top of the deformable cap 30 moves downwards, causing it to deform. The top of the deformable cap 30 approaches, contacts, and is pressed against the sealing edge 13, thus sealing the drain hole 12. By providing the sealing edge 13, the downward movement distance of the top of the deformable cap 30 is reduced, meaning the deformation of the deformable cap 30 is reduced. This allows the inlet water pressure to apply more pressure to press the deformable cap 30 against the sealing edge 13, improving the sealing performance of the drain hole 2. Simultaneously, the amount of deformation required for the deformable cap 30 to reset after the inlet water pressure is removed is also reduced, making the process faster and more convenient. Furthermore, the reduced deformation of the deformable cap 30 helps to improve its service life.

[0062] The lower end of the deformable cap 30 is fixed to the bottom surface of the shower box 10. Multiple connecting holes 40 are circumferentially formed near the lower opening of the deformable cap 30. When the top of the deformable cap 30 moves downwards and deforms, the cap bends at the connecting holes 40, allowing the top of the cap 30 to move downwards. Preferably, the plane containing the upper end of the sealing edge 13 passes through the connecting holes 40 on the undeformed deformable cap 30, resulting in minimal deformation of the cap 30 and preventing increased water resistance at the drain hole 12 due to an excessively high sealing edge 13, thus avoiding difficulty in water flow. More preferably, the connecting holes 40 are circular, and the plane containing the upper end of the sealing edge 13 is lower than the center of the connecting holes 40.

[0063] Example 3

[0064] See Figures 7-8 This is the third embodiment of a shower head device for a washing machine proposed in this invention. The main difference between this embodiment and the second embodiment is that it has an installation edge and a connecting hole 40 is provided on the installation edge. Other aspects can adopt the same structure as the first embodiment.

[0065] A shower head device for a washing machine includes: a shower head box 10, a water inlet pipe 20, and a deformable cap 30. A drain hole 12 and multiple spray holes 11 are provided on the bottom surface of the shower head box 10, and the area of ​​the drain hole 12 is larger than the area of ​​the spray holes 11. The water inlet pipe 20 is connected to the shower head box 10 to supply water to the shower head box 10. The deformable cap 30 is deformed to close and open the drain hole 12. Under the action of the inlet water pressure, the deformable cap 30 deforms and closes the drain hole 12. After the inlet water pressure is removed, the deformable cap 30 resets and uncloses the drain hole 12, allowing water in the shower head box 10 to flow out from the drain hole 12. By setting the drain hole 12 and the deformable cap 30, when water enters the shower box 10, the water pressure causes part of the deformable cap 30 to move downwards and deform, sealing the drain hole 12. This allows water in the shower box 10 to flow downwards from the spray hole 11, achieving normal water intake for the shower device. After the water inlet valve is closed, water intake ends, and the water pressure is removed, causing the deformable cap 30 to reset. This removes the seal on the drain hole 12, and since the area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, the gravity of the water at the drain hole 12 overcomes the surface tension and flows out first. This creates a negative pressure inside the shower box 10, allowing air to enter from the spray hole 11, thereby promoting water flow out from the drain hole and achieving rapid drainage. This helps prevent slow dripping and stagnation of water in the shower box 22.

[0066] In this embodiment, a cylindrical mounting edge 14 extending upwards is provided on the bottom surface of the shower box 10. A deformable cap 30 is provided on the top or inner side of the mounting edge 14. A connecting hole 40 is provided on the mounting edge 14, and the mounting edge 14 surrounds the outside of the drain hole 12. By providing the mounting edge 14, the structure of the deformable cap 30 is simplified, eliminating the need for a connecting hole, which helps to ensure the structural strength and service life of the deformable cap 30. The mounting edge 14 can be made of the same material as the shower box 10, or it can be integrally injection molded. The connecting hole 40 can be of any shape.

[0067] The connecting hole 40 is used to connect the interior of the shower box 10 and the drain hole 12. The space between the deformable cap 30 and the bottom surface of the shower box 10 is defined as the inner cap space 15. Specifically, the inner cap space 15 is the space surrounded by the deformable cap 30, the mounting edge 14, and the shower box 10. The space inside the shower box 10 and outside the inner cap space 15 is defined as the outer cap space 16. That is, the inner cap space 15 and the outer cap space 16 constitute the inner space of the shower box 10. The connecting hole 40 connects the inner cap space 15 and the outer cap space 16. After the inlet water pressure is released, the deformable cap 30 returns to its original position, allowing water in the outer space 16 to enter the inner space 15 through the connecting hole 40. Water entering the inner space 15 from the outer space 16 does not require additional force. Water at the drain hole 12 flows out under gravity, creating a negative pressure in the inner space 15. At this time, water in the outer space 16 enters the inner space 15 through the connecting hole 40. If outside air were to enter the inner space 15 through the drain hole 12, it would need to overcome the gravity and surface tension of the water. Therefore, with the inner space 15 under negative pressure, the outer space 16... Water from 6 enters the inner space 15 of the shower box. At this time, the shower box 10 is under negative pressure. Both the outer space 16 and the inner space 15 of the shower box are under negative pressure. Water continues to drip from the drain hole 12, further increasing the negative pressure inside the shower box 10. This allows air to enter the shower box 10 through the spray hole 11, restoring the pressure inside the shower box 10. While the drain hole 12 creates negative pressure inside the shower box 10, air enters from the spray hole 11 to compensate for the pressure inside the shower box 10, making the pressure inside the shower box 10 close to or equal to the external atmospheric pressure, causing the water inside the shower box 10 to flow out quickly.

[0068] Multiple connecting holes 40 are provided on the mounting edge 14. The total area of ​​all connecting holes 40 is greater than or equal to the area of ​​the drain hole 12. This ensures that after the water inlet is finished, when the deformable cap 30 is reset, the water in the outer space 16 of the cap enters the inner space 15 of the cap through the connecting holes 40. Also, when the inner space 15 of the cap is under negative pressure after the water flows out of the drain hole 12, the water in the outer space 16 of the cap enters the inner space 15 of the cap through the connecting holes 40. This ensures the rapid drainage of water in the shower box 10.

[0069] In this embodiment, the ratio of the total area of ​​the connecting hole 40 to the area of ​​the drain hole 12 is 1 to 2, ensuring unobstructed flow and equal pressure between the inner space 15 and the outer space 16 of the cap; preferably, the ratio of the total area of ​​the connecting hole 40 to the area of ​​the drain hole 12 is 1.5. The area of ​​the drain hole 12 is larger than the area of ​​the spray hole 11, and the ratio of the area of ​​the drain hole 12 to the area of ​​the spray hole 11 is 4 to 20, preferably 8 to 12. For ease of processing and strength, both the spray hole 11 and the drain hole 12 are preferably circular.

[0070] In this embodiment, the deformable cap 30 is fixed to the top or inner side of the mounting edge 14, and the deformable cap 30 is located above the drain hole 12. When the inlet water pressure is removed, the water flows out of the drain hole 12, that is, the water in the cap's inner space 15 flows out, so that the negative pressure can be transmitted to the shower box 10, allowing air to enter the shower box 10 from the spray hole 11; and the water in the shower box 10 can reach the drain hole 12 through the connecting hole 40 and flow out; so that the negative pressure generated at the drain hole 12 in the shower box 10 is transmitted to the shower box 10 outside the deformable cap 30 through the connecting hole 40, allowing air to enter the shower box 10 from the spray hole 11, thereby promoting the water to flow out from the drain hole and achieving rapid drainage.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A shower device of a washing machine, characterized in that, include: The shower box has a drain hole and multiple spray holes on its bottom surface; The water inlet pipe is used to supply water to the shower box; The deformable cap can deform under the pressure of the inlet water to close the drain hole, and can return to its original position after the inlet water pressure is removed, allowing water in the shower box to flow out from the drain hole; the area of ​​the drain hole is larger than the area of ​​the spray hole; At least one connecting hole for connecting the interior of the shower box and the drain hole; The connecting hole is formed on the deformable cap. After the deformable cap is deformed by pressure, it seals the drain hole. The projection of the connecting hole on the bottom surface of the shower box is outside the drain hole. When the top of the deformable cap moves downward and deforms, the deformable cap bends and deforms at the connecting hole.

2. The showerhead assembly of claim 1, wherein The total area of ​​all the connecting holes is greater than or equal to the area of ​​the drain hole.

3. The showerhead assembly of claim 1, wherein The deformable cap is fixed inside the shower box and snapped on top of the drain hole.

4. The showerhead assembly of claim 1, wherein, The ratio of the area of ​​the vent hole to the area of ​​the nozzle is 4 to 20.

5. The showerhead assembly of any one of claims 1-4, wherein, The deformable cap has an open, curved structure, and the lower end of the deformable cap is fixed to the bottom surface of the shower box.

6. The showerhead assembly of any one of claims 1-4, wherein, A sealing edge extending upward is provided along the edge of the drain hole, and the sealing edge makes sealing contact with the deformable cap to achieve the sealing of the drain hole by the deformable cap.

7. The showerhead assembly of claim 6, wherein, The plane containing the upper end of the sealing edge passes through the connecting hole on the deformable cap in its undeformed state.

8. The showerhead assembly of any one of claims 1-4, wherein, The bottom surface of the shower box is provided with an upwardly extending mounting edge, the deformable cap is provided on the mounting edge, the mounting edge is provided with the connecting hole, and the mounting edge surrounds the outside of the drain hole.

9. A laundry machine characterized by It has the shower head structure as described in any one of claims 1 to 8.

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