Washing equipment

Abstract

This invention discloses a washing device, comprising: a main body, a washing module, a connecting pipe, a water inlet module, and a steam module. The main body has a washing chamber. The washing module is connected to the main body and is adapted to spray a medium into the washing chamber. The connecting pipe is connected to the washing module. The water inlet module is connected to the connecting pipe to supply water to the washing module. The steam module is connected to the connecting pipe to supply steam to the washing module. The washing device has a check valve structure to prevent water in the connecting pipe from flowing back into the steam module. By applying the above technical solution, both water spraying and steam spraying modes can be accommodated, and the backflow of washing water into the steam module can be prevented, avoiding blockage of the steam module and improving the working efficiency and cleanliness of the steam module.

Description

Technical Field

[0001] This invention relates to the field of cleaning appliance technology, and in particular to a washing device. Background Technology

[0002] Washing equipment utilizes steam to impregnate stubborn stains and accelerate the removal of oil during the washing stage, followed by rinsing the items with water. During the rinsing stage, high-temperature steam releases latent heat for disinfection and sterilization. Related washing equipment typically features multiple flow paths for steam and water, resulting in a complex structure. Furthermore, wash water can easily enter the steam flow paths, causing contamination or blockage and affecting washing performance. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a washing device that can accommodate both water spraying and steam spraying modes, and can prevent washing water from flowing back into the steam module, avoiding clogging of the steam module and improving the working efficiency and cleanliness of the steam module.

[0004] A washing device according to an embodiment of the present invention includes: a device body, a washing module, a connecting pipe, a water inlet module, and a steam module. The device body has a washing chamber. The washing module is connected to the device body and is adapted to spray a medium into the washing chamber. The connecting pipe is connected to the washing module. The water inlet module is connected to the connecting pipe to supply water to the washing module. The steam module is connected to the connecting pipe to supply steam to the washing module. The washing device has a check valve structure to prevent water in the connecting pipe from flowing back into the steam module.

[0005] The washing device according to the embodiments of the present invention can accommodate both water spraying and steam spraying modes, and can prevent washing water from flowing back into the steam module, avoiding clogging of the steam module, and improving the working efficiency and cleanliness of the steam module.

[0006] In addition, the washing apparatus according to the above embodiments of the present invention may also have the following additional technical features:

[0007] In some embodiments, the connecting pipe includes: a water inlet channel and an air inlet channel, wherein the inlet of the water inlet channel is connected to the water inlet module and the outlet is connected to the washing module; the inlet of the air inlet channel is connected to the steam module and the outlet is connected to the water inlet channel, wherein the check valve structure includes a check valve section formed by at least a portion of the air inlet channel, the check valve section extending in a vertical direction, and the lower end of the check valve section leading to the water inlet channel and the upper end leading to the steam module.

[0008] In some embodiments, the air intake channel further includes an air intake section that extends in a vertical direction, and the upper end of the air intake section is connected to the upper end of the check section. The air intake section and the check section are connected to form a U-shaped channel with an opening facing downwards.

[0009] In some embodiments, the height of the check section is not less than 50 mm.

[0010] In some embodiments, the width of the cross-section of the check section is no greater than 10 mm.

[0011] In some embodiments, the check valve section is a circular channel with an inner diameter of no more than 5 mm.

[0012] In some embodiments, the lower end of the check valve section is directly connected to the water inlet channel.

[0013] In some embodiments, the water inlet channel extends vertically and its lower end is configured as an inlet, and the water in the main body of the equipment is adapted to flow into the inlet of the water inlet channel to form a liquid seal structure to facilitate the passage of steam. The connection position between the air inlet channel and the water inlet channel is higher than the inlet of the water inlet channel.

[0014] In some embodiments, the inlet of the air intake channel and the inlet of the water intake channel both extend in the vertical direction, and the inlet of the air intake channel is adjacent to the inlet of the water intake channel.

[0015] In some embodiments, the check structure further includes a one-way valve configured to allow steam to flow unidirectionally from the steam module to the connecting pipe.

[0016] In some embodiments, the one-way valve is integrated into the connecting pipe, between the connecting pipe and the steam module, within the steam module, or upstream of the steam module.

[0017] In some embodiments, the main body of the device further includes a water cup, which is located below the washing chamber and communicates with the washing chamber.

[0018] In some embodiments, the water inlet module includes a washing pump connected to both the water cup and the connecting pipe.

[0019] In some embodiments, the inlet of the steam module is connected to the water cup.

[0020] In some embodiments, the steam module includes: a steam generator and a drive pump, wherein the steam generator is connected to the connecting pipe to generate steam and send it to the washing module; the drive pump is connected to the steam generator to drive water into the steam generator, wherein the drive pump is an electromagnetic pump; or the drive pump is a pump body structure with an integrated sealing valve; or the drive pump is a pump body structure with an integrated reverse shut-off check valve; or the drive pump is located upstream of the steam generator.

[0021] In some embodiments, the washing module includes: a drive module and a spray arm, the drive module being connected to the main body of the device; the spray arm being connected to the drive module and driven to rotate by the drive module, the spray arm being connected to the connecting pipe, and the spray arm having a nozzle for spraying a medium into the washing chamber.

[0022] In some embodiments, the spray arm is tubular, with one end connected to the drive module, and the spray arm is adapted to be driven by the drive module to rotate about the central axis of the spray arm.

[0023] In some embodiments, the drive module includes a drive gear and at least one driven gear, the driven gear meshing with the drive gear, and each driven gear is connected to a corresponding spray arm.

[0024] In some embodiments, the washing module further includes a water distribution pipe, the inlet of which is connected to the connecting pipe, and the outlet of which is sleeved on the outer periphery of the gear shaft of the driven gear.

[0025] In some embodiments, the spray arm is detachably connected to the driven gear. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the washing device in some embodiments of the present invention.

[0027] Figure 2 These are partial structural schematic diagrams of the washing equipment in some embodiments (showing connecting pipes and spray arms).

[0028] Figure 3 This is a side view of the connecting pipe in some embodiments of the present invention.

[0029] Figure 4 These are cross-sectional views of the connecting pipes in some embodiments of the present invention.

[0030] Figure 5 This is a partial schematic diagram of the connecting pipe in some embodiments of the present invention (showing the state when the one-way valve is open).

[0031] Figure 6This is a partial schematic diagram of the connecting pipes in some embodiments of the present invention (showing the state when the one-way valve is closed).

[0032] Figure 7 This is a partial schematic diagram of the connecting pipes in some other embodiments of the present invention.

[0033] Figure 8 This is a partial schematic diagram of the washing module in some embodiments of the present invention.

[0034] Figure 9 yes Figure 8 Cross-sectional view along the AA direction.

[0035] Figure 10 This is an exploded view of the driving module in some embodiments of the present invention.

[0036] Figure 11 This is a schematic diagram of the connection between the heat storage component and the steam module in some embodiments of the present invention.

[0037] Figure 12 This is a cross-sectional view of the heat storage element in some embodiments of the present invention.

[0038] Figure 13 This is a flowchart of the operation of the washing device in some embodiments of the present invention.

[0039] Figure label:

[0040] 100. Washing equipment; 10. Equipment body; 101. Washing chamber; 11. Water cup; 12. Upper dish rack; 13. Lower dish rack; 14. Conveyor pipe; 14a. Second water inlet; 141. Branch pipe; 20. Washing module; 21. Drive module; 211. Drive gear; 212. Driven gear; 213. Oil seal; 214. Card; 215. Bearing; 216. Housing; 22. Spray arm; 23a. Upper spray arm; 23b. Lower spray arm; 23c. Middle spray arm; 24. Water distribution pipe; 25. Connecting arm; 30. Connecting pipe; 31. 31a, Water inlet; 31b, Water outlet; 32, Air inlet; 32a, Air inlet; 32b, Air outlet; 321, Check valve; 322, Air inlet section; 323, Stop rib; 33, One-way valve; 41, Washing pump; 50, Steam module; 51, Steam generator; 52, Drive pump; 53, Connecting pipe; 54, Heat storage component; 541, Preheating chamber; 542, Heat storage body; 543, Electric heating rod; 544, Heat exchange coil; 545, Water inlet pipe; 546, Water outlet pipe; 61, Water softener; 62, Water tank. Detailed Implementation

[0041] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0042] Combination Figures 1 to 13 According to an embodiment of the present invention, a washing device 100 includes: a device body 10, a washing module 20, a connecting pipe 30, a water inlet module, and a steam module 50. The device body 10 has a washing chamber 101. The washing module 20 is connected to the device body 10 and is adapted to spray a medium into the washing chamber 101. The connecting pipe 30 is connected to the washing module 20. The water inlet module is connected to the connecting pipe 30 to supply water to the washing module 20. The steam module 50 is connected to the connecting pipe 30 to supply steam to the washing module 20. The washing device 100 has a check structure to restrict the backflow of water in the connecting pipe 30 to the steam module 50. Specifically, the washing chamber 101 has a receiving space into which items to be washed can be placed. The washing module 20 is connected to both the device body 10 and the connecting pipe 30. The washing module 20 can spray a medium from the connecting pipe 30 into the washing chamber 101 to achieve one or more functions such as washing, drying, and disinfection.

[0043] Furthermore, the connecting pipe 30 is connected to both the water inlet module and the steam module 50. The water inlet module supplies water to the connecting pipe 30, and the steam module 50 supplies steam to the connecting pipe 30. Subsequently, water, steam, and other media are sprayed into the washing chamber 101 through the washing module 20, thereby achieving the purpose of providing water, steam, and other media into the washing chamber 101. The shared connecting pipe 30 for water and steam simplifies the structure of the washing equipment 100, facilitates the integration of various modules, and improves the functionality of the washing equipment 100. In other words, when water and steam enter the washing chamber 101, they both pass through the connecting pipe 30 and are sprayed through the washing module 20, achieving a shared connection pipe 30 for water and steam, which helps simplify the equipment structure. In addition, the washing equipment 100 is also equipped with a check valve. Specifically, after the washing module 20 sprays water, there will be washing water with a certain pressure in the connecting pipe 30. Since the washing water contains a large number of impurities, the check valve can prevent the washing water from flowing back into the steam module 50.

[0044] In practical applications, the items to be cleaned are placed in the washing chamber 101. The washing device 100 can have washing and steam modes, etc. When the working state is washing mode, the water inlet module supplies water to the washing module 20 through the connecting pipe 30. The washing module 20 can spray water into the washing chamber 101 to rinse the items and clean them. After cleaning, the device can enter steam mode. The steam module 50 supplies steam to the washing module 20 through the connecting pipe 30. The washing module 20 can release steam into the washing chamber 101. The high-temperature steam can disinfect and sterilize the items in the washing chamber 101, improving the cleaning effect. Of course, steam can also be supplied to the washing chamber 101 before the washing mode is activated to soften stubborn impurities adhering to the surface of the tableware, thereby improving the washing effect.

[0045] When the equipment is in the washing state, there will be washing water with a certain pressure in the connecting pipe 30. The washing water contains impurities. At this time, the check structure can prevent the washing water from entering the steam module 50, avoiding blockage or contamination of the steam module 50, which helps to improve the cleaning effect.

[0046] According to the washing equipment 100 of the present invention, both the water inlet module and the steam module 50 are connected to the connecting pipe 30, so that the washing module 20 can take into account both water spraying and steam spraying modes, and can prevent the washing water from flowing back to the steam module 50 during operation, thereby avoiding the clogging of the steam module 50 and improving the working efficiency and cleanliness of the steam module 50.

[0047] The check valve structure may include a sealing structure, a reverse shut-off structure, a control valve, etc., to restrict the flow of air from the connecting pipe 30 into the steam module 50.

[0048] Combination Figure 6Optionally, the connecting pipe 30 includes a water inlet channel 31 and an air inlet channel 32. The inlet of the water inlet channel 31 is connected to the water inlet module and the outlet is connected to the washing module 20. The inlet of the air inlet channel 32 is connected to the steam module 50 and the outlet is connected to the water inlet channel 31. The check valve structure includes a check valve section 321 formed by at least a portion of the air inlet channel 32. The check valve section 321 extends vertically, with its lower end leading to the water inlet channel 31 and its upper end leading to the steam module 50. That is, when water is supplied to the washing module 20, it is transported to the washing module 20 through the water inlet channel 31; when steam is supplied to the washing module 20, the steam first enters the air inlet channel 32, then enters the water inlet channel 31, and is then transported to the washing module 20 from the outlet of the water inlet channel 31. In other words, water and steam can share the water inlet channel 31 when supplying water and steam, which simplifies the structure of the connecting pipe 30 and facilitates space arrangement. Furthermore, a check section 321 is constructed within the air intake channel 32 to restrict the backflow of washing water from the water intake channel 31 into the air intake channel 32. Specifically, the check section 321 extends vertically, with its lower end connected to the water intake channel 31 and its upper end connected to the steam module 50. The washing water in the water intake channel 31 flows downwards naturally due to gravity and cannot pass through the check section 321 to enter the steam module 50, thus achieving a check-back effect. This structure is simple and easy to implement. Additionally, during water supply from the water intake module, there is a certain pressure in the water. This pressure will cause water to flow into the air intake channel 32. Because of the check structure, a closed space is created within the air intake channel 32. When water flows into the check section 321, it causes the air pressure within the air intake channel 32 to increase, thereby restricting the flow of water into the air intake channel 32 and achieving a check-back effect. In other words, the check structure can be constructed as a sealed structure that restricts airflow from the connecting pipe 30 to the steam module 50. In addition, the lower end of the check section 321 is connected to the water flow channel, which also allows the water that enters the air intake channel 32 to flow back into the water intake channel 31.

[0049] In this invention, the steam module 50 can be positioned above the check section 321, effectively restricting water flow to the steam module 50. Of course, to facilitate the connection of the steam module 50, water inlet module, etc., to the connecting pipe 30, the air inlet channel 32 in this invention can also include a channel communicating with the check section 321 and extending downwards, to facilitate the connection of the steam module 50 and to lower the center of gravity of the washing equipment 100. Combined with... Figure 5 and Figure 6Optionally, the air intake channel 32 also includes an air intake section 322, which is connected to the steam module 50. The air intake section 322 extends vertically, facilitating the entry of high-temperature steam from the steam module 50 into the air intake section 322 and its upward movement. The upper end of the air intake section 322 is connected to the upper end of the check section 321, forming a downward-opening U-shaped channel. Specifically, washing water is unlikely to enter the air intake section 322 through the inverted U-shaped channel, thus achieving unidirectional steam flow. Referring to the figure, the inlet of the air intake section 322 and the check section 321 can be configured in a bent form to further prevent impurities from entering the steam generator.

[0050] Combination Figure 6 and Figure 7 Optionally, the height of the check section 321 is not less than 50 mm to improve the effect of limiting the backflow of washing water. For example, the height of the check section 321 can be 60 mm or 70 mm, etc., and can be adjusted according to the actual size of the washing equipment 100 or the washing water pressure, etc. Of course, the height of the check section 321 can also be 40 mm, etc., and the present invention is not limited thereto. Preferably, the height of the check section 321 can be set to 100 mm. By limiting the height of the check section 321, water can be effectively prevented from entering the steam module 50 through the air inlet channel 32. Specifically, during the process of the water inlet module supplying water to the washing module 20, there will be a certain water pressure in the water flow. Under the action of water pressure, some water will enter the air intake channel 32, thereby generating air pressure in the air intake channel 32 to balance the water pressure of the water flow. Under this action, the check section 321 is set to a certain height, which can ensure that after the water flow enters the check section 321, the water pressure in the water inlet channel 31 and the air pressure in the air intake channel 32 are kept in balance. It can also prevent the water flow from extending further into the air intake channel 32, causing the water flow to enter the steam module 50 under the action of gravity, water adsorption force, etc. It can also facilitate the rapid return of water in the check section 321 after the water pressure is removed.

[0051] Optionally, the width L of the cross-section of the check section 321 is no greater than 10 mm, which helps to increase the flow rate of steam when passing through the check section 321, thereby improving working efficiency. For example, the width L of the cross-section of the check section 321 can be set to 3 mm, 4.5 mm, 8 mm, etc. Of course, the width L of the cross-section of the check section 321 can be set to be greater than 10 mm. This ensures that a stable air pressure can be generated in the air intake channel 32, and also prevents water from crossing the check section 321 under the influence of fluctuations, adsorption forces, etc.

[0052] The cross-section of the check valve section 321 refers to the cross-section obtained by cutting the check valve section 321 with a plane perpendicular to the vertical direction. Furthermore, when measuring the dimensions of the cross-section of the check valve section 321 in multiple directions perpendicular to the vertical direction, the smallest dimension is the width L of the cross-section.

[0053] Combination Figure 7 Optionally, the check valve section 321 can be a circular channel, a square channel, other polygonal channels, or an irregular channel. For example, the check valve section 321 can be a circular channel with an inner diameter (diameter of the inner circumferential surface) of no more than 5 mm (see distance L in Figure 7) to improve the check valve effect. For example, the inner diameter of the check valve section 321 can be 4 mm or 5 mm, or 6 mm, etc., and the present invention is not limited thereto.

[0054] Optionally, the lower end of the check section 321 is directly connected to the water inlet channel 31 to facilitate the rapid entry of steam into the water inlet channel 31. At the same time, it also facilitates the rapid return of water entering the check section 321, reducing or preventing water accumulation in the check section 321.

[0055] Combination Figure 6 Optionally, the water inlet channel 31 extends vertically and its lower end is configured as an inlet. Water within the main body 10 is designed to flow into the inlet of the water inlet channel 31 to form a liquid seal structure for easy steam passage. The connection point between the air inlet channel 32 and the water inlet channel 31 is higher than the inlet of the water inlet channel 31. For example, when the steam module 50 generates high-temperature, high-pressure steam, the inlet of the water inlet channel 31 is sealed. At this time, after the steam enters the water inlet channel 31 along the air inlet channel 32, the water seal at the inlet of the water inlet channel 31 blocks the flow of steam towards the inlet of the water inlet channel 31. The steam can only be ejected upwards along the water inlet channel 31 through the washing module 20, which helps improve working efficiency.

[0056] In addition, the steam module 50 in this invention can be connected to the water cup 11 inside the main body 10 of the device. By injecting clean water into the water cup 11 and extracting the clean water from the water cup 11 through the steam module 50, steam is generated. At the same time, the water in the water cup 11 of the main body 10 will enter the inlet of the water inlet channel 31 to form a water seal.

[0057] Optionally, the inlets of both the air inlet channel 32 and the water inlet channel 31 extend vertically, with the inlets of the air inlet channel 32 and the water inlet channel 31 adjacent to each other. This facilitates water and steam delivery and optimizes space arrangement. It also allows for easy connection of the various modules via the connecting pipes 30, simplifies the assembly process, improves the integration of the washing equipment 100, shortens the piping, and lowers the center of gravity.

[0058] Combination Figures 4 to 6Optionally, the check structure also includes a one-way valve 33, which is configured to allow steam to flow unidirectionally from the steam module 50 to the connecting pipe 30, while blocking and shutting off the flow of air from the connecting pipe 30 to the steam module 50. This improves the effect of limiting the backflow of washing water and is easy to implement, thus reducing costs. The check structure can have the one-way valve 33 installed within the U-shaped channel, or it can be installed only within the air inlet channel 32 to achieve the unidirectional flow effect.

[0059] It should be noted that the check structure in this invention may include a one-way valve 33. The one-way valve 33 is used as an example for illustration, but this is not a limitation on the scope of protection of this invention. In this invention, the check structure may also include any other type of valve body with switching function, such as various types of solenoid valves, mechanical valves, etc.

[0060] Optionally, the one-way valve 33 can be integrated into the connecting pipe 30, or it can be integrated between the connecting pipe 30 and the steam module 50, so that washing water cannot enter the steam module 50 through the connecting pipe 30, thereby providing a blocking effect at the front of the steam module 50. Figure 6 According to an embodiment of the washing device 100 of the present invention, a one-way valve 33 may be provided at one end of the check section 321 connected to the water inlet channel 31 to prevent washing water from entering the air inlet section 322 and improve the backflow prevention effect.

[0061] Of course, the one-way valve 33 can also be integrated into the steam module 50 or upstream of the steam module 50. That is, if the one-way valve 33 is inside the steam module 50 or upstream of the steam module 50, steam can only be supplied to the outside, while other media cannot enter the steam module 50 through the one-way valve 33, thereby ensuring the cleanliness of the steam module 50.

[0062] Combination Figure 1 and Figure 2 Optionally, the main body 10 of the device includes a water cup 11, which is located below and connected to the washing chamber 101. After the washing module 20 sprays the medium into the washing chamber 101, it can be collected through the water cup 11 for recycling.

[0063] The water inlet module includes a washing pump 41, which is connected to a water cup 11 and a connecting pipe 30. Specifically, the water cup 11 can be used to store water, and the washing pump 41 delivers the water in the water cup 11 to the connecting pipe 30 to supply water to the washing chamber 101. In addition, the inlet of the steam module 50 can also be connected to the water cup 11, and the water in the water cup 11 can also be supplied to the steam module 50 to generate steam, which simplifies the structure of the washing equipment 100.

[0064] Combination Figure 1 and Figure 11Optionally, the steam module 50 includes a steam generator 51 and a drive pump 52. The steam generator 51 is connected to the connecting pipe 30 to generate steam and send it to the washing module 20. The drive pump 52 is connected to the steam generator 51 to drive water into the steam generator 51.

[0065] Among them, the drive pump 52 is an electromagnetic pump, which is beneficial for space layout and cost reduction. In addition, the design principle of the electromagnetic pump itself allows it to be in a closed state when not in operation. That is to say, when the steam module 50 is not working, the electromagnetic pump itself can act as a check valve to prevent water from flowing into the steam generator 51.

[0066] Alternatively, the drive pump 52 can be a pump body structure with an integrated sealing valve to improve sealing. This way, when water is introduced, the sealing valve in the drive pump 52 can seal the air intake channel 32, thus preventing backflow of washing water. Alternatively, the drive pump 52 can be a pump body structure with an integrated reverse shut-off check valve 33, utilizing the reverse sealing characteristics of the pump body structure to prevent backflow of washing water, thus achieving a one-way flow effect.

[0067] In order to facilitate water supply to the steam generator 51, the drive pump 52 can be located upstream of the steam generator 51; of course, the drive pump 52 of the present invention can also be located downstream of the steam generator 51, or the steam generator 51 and the drive pump 52 can be integrated.

[0068] According to some embodiments of the washing equipment 100 of the present invention, during use, an electromagnetic pump can pump water to a steam generator 51. The steam generator 51 heats the water to generate steam. The vaporization and expansion of the water generates pressure, which is transmitted to the water inlet and steam outlet of the steam generator 51. Therefore, the electromagnetic pump has a reverse shut-off function, which can ensure stable water delivery and prevent steam backflow. Thus, the electromagnetic pump in the steam module 50 can have a built-in one-way valve 33 structure, which helps to save costs. At the same time, compared with placing a one-way structure in the steam module 50, the one-way structure built into the electromagnetic pump has the characteristics of stable operation and low damage, which helps to improve service life and improve the durability of the washing equipment 100. In addition, the one-way valve 33 is between the drive pump 52 and the steam generator 51, and does not obstruct the delivery of steam into the washing chamber 101. The resistance of the steam delivery channel is small, which helps to improve working efficiency and reduce energy consumption.

[0069] Combination Figure 2 and Figure 8Optionally, the washing module 20 includes a drive module 21 and a spray arm 22. The drive module 21 is connected to the main body 10 of the device. The spray arm 22 is connected to the drive module 21 and is driven to rotate by the drive module 21. The spray arm 22 is connected to the connecting pipe 30, and the spray arm 22 is provided with nozzles for spraying a medium into the washing chamber 101. That is, the spray arm 22 can spray a medium, such as water or steam, into the washing chamber 101. The drive module 21 can drive the spray arm 22 to rotate, so that the spray arm 22 can wet or sterilize the items in the washing chamber 101 from different directions when spraying the medium, which is beneficial to improving the cleaning effect. In addition, the method of actively driving the spray arm 22 to rotate by the drive module 21 in this invention can easily realize large-area, omnidirectional spraying of water or steam, etc., improving the cleaning and disinfection effects.

[0070] Optionally, the spray arm 22 is tubular with one end connected to the drive module 21, and the spray arm 22 is adapted to be driven by the drive module 21 to rotate around the central axis of the spray arm 22, so that the spray arm 22 can rotate 360 ​​degrees, so that the medium sprayed by the spray arm 22 can wet all positions of the washing chamber 101, thereby improving the cleaning effect.

[0071] Specifically, the washing equipment 100 utilizes steam to impregnate stubborn stains during the washing stage, accelerating the removal of oil stains; during the rinsing stage, it uses high-temperature steam to release latent heat for disinfection and sterilization. However, in related technologies, the steam inlets of steam sterilization structures are all fixed, which can easily lead to temperature blind spots or require prolonged heating times, and is not conducive to targeted enhanced disinfection of key areas, while also wasting energy. In this invention, the spray arm 22 is driven by the drive module 21 and can rotate 360 ​​degrees to achieve comprehensive cleaning or sterilization. The drive module 21 can also swing within a certain angle or spray at a specific location, making the washing and sterilization methods more flexible and facilitating the washing and sterilization of key areas. In practical application, water or steam is introduced into the self-driving washing module 20 through the connecting pipe 30, and water or steam is sprayed into the washing chamber 101 through the nozzles of the spray arm 22. This achieves steam impregnation and sterilization of items in the washing chamber 101 from different directions, resulting in more thorough impregnation and sterilization.

[0072] Combination Figure 8 Optionally, the drive module 21 includes a drive gear 211 and at least one driven gear 212. The driven gear 212 meshes with the drive gear 211, and each driven gear 212 is connected to a corresponding spray arm 22. This improves the stability of power transmission and facilitates the installation of multiple spray arms 22 to enhance the cleaning effect. Specifically, both sides of the drive gear 211 can mesh with the driven gear 212 to synchronously drive the two driven gears 212 to rotate, and the two spray arms 22 spray the medium simultaneously, which helps to improve the cleaning effect and cleaning efficiency.

[0073] Optionally, the washing module 20 also includes a water distribution pipe 24. The inlet of the water distribution pipe 24 is connected to the connecting pipe 30, and the outlet is sleeved on the outer circumference of the gear shaft of the driven gear 212. The medium in the connecting pipe 30 can be transported to the spray arm 22 through the water distribution pipe 24. The water distribution pipe 24 can play a role in stabilizing pressure, which is conducive to the even delivery of the medium to the spray arm 22 after the medium is collected, thereby improving the spraying effect and facilitating maintenance and replacement.

[0074] Optionally, the spray arm 22 is detachably connected to the driven gear 212, which can improve the flexibility of the device and facilitate maintenance.

[0075] Combination Figure 6 According to an embodiment of the washing device 100 of the present invention, both the air inlet section 322 and the check section 321 are designed to be vertically extending vertically, and the one-way valve 33 is provided on the check section 321. In actual use, when the washing device 100 is not in the washing state (during the working mode switching interval or steam jet mode), the washing drive pump 52 stops working, and the washing water loses power and flows back to the water cup 11 along the connecting pipe 30. The vertical state can minimize the adhesion of impurities in the washing water to the precision sealing element of the check structure, thus avoiding affecting the opening and closing force and sealing accuracy. When the working state is steam mode, the steam module 50 generates high temperature and high pressure steam. The steam breaks through the resistance of the check structure along the air inlet section 322 and opens the one-way channel to enter the water inlet channel 31. After the steam enters the water inlet channel 31, because a certain amount of water is retained in the water cup 11 to seal the connection between the water inlet channel 31 and the air in the washing chamber 101, the downward channel of the steam along the water inlet channel 31 is blocked by water. The steam can only be sprayed upward along the water inlet channel 31 through the rotary spray arm 22.

[0076] Combination Figure 7 According to another embodiment of the washing device 100 of the present invention, the driving pump 52 of the steam module 50 can be an electromagnetic pump, that is, the electromagnetic pump drives water into the steam generator 51, and the steam generator 51 generates steam and sends it out. Utilizing the reverse sealing characteristic of the electromagnetic pump, when the device is in washing mode, the washing water has a certain pressure. The electromagnetic pump compresses the air in the steam delivery channel. When the pressure is balanced, the washing water forms a pressure balance liquid surface with a relative height H. Ensuring that the height h of the U-shaped structure of the check section 321 is greater than H can effectively prevent the backflow of washing water, which is easy to implement and helps to reduce costs.

[0077] Furthermore, the present invention also provides a thermal energy storage solution for a washing device 100.

[0078] In related technologies, washing equipment 100 is usually limited by power and volume, resulting in a small amount of steam generated per unit time. It cannot release a large amount of steam in a short time, making it difficult to quickly raise the temperature of tableware in a short time, which causes the steam washing and steam sterilization time to be too long.

[0079] Therefore, the washing equipment 100 in this invention adopts a thermal energy storage scheme, utilizing phase change materials or other heat storage components. Specifically, the washing equipment 100 heats the heat storage component 54 during the low-power consumption stage. When the equipment enters the steam operation mode, the water used in the steam generator 51 can be preheated to a certain temperature by passing through the heat storage component 54 before entering the steam generator 51. This increases the steam generation without changing the power and volume of the steam generator 51, improving work efficiency and reducing energy consumption. Figure 11 As shown, the steam module 50 of the present invention may further include a heat storage element 54, wherein the heat storage element 54 can be connected upstream of the steam generator 51, thereby storing heat and preheating the upstream of the steam generator 51 through the heat storage element 54, thereby improving steam generation efficiency and energy utilization.

[0080] It should be noted that the washing equipment 100 generally consumes more power when heating the washing water, while the power consumption is lower during other processes such as washing or rinsing, draining, water inlet, and static states where water is not heated. Therefore, the heat storage element 54 can be heated during the low-power phase, and the water entering the steam generator 51 exchanges heat with the heat storage element 54, thereby improving heating efficiency and achieving rational energy utilization.

[0081] Combination Figure 11 and Figure 12 , Figure 11 The diagram illustrates the connection between the heat storage element 54 and the steam module 50. The electromagnetic pump, heat storage element 54, and steam generator 51 are sequentially connected via connecting pipes. Softened water, under the action of the electromagnetic pump, enters the heat storage element 54 from the water cup 11 through the connecting pipe for preheating. Then, the steam generator 51 generates high-temperature steam, which enters the washing chamber 101 through the connecting pipe 30 to wash and sterilize items. A cross-sectional view of the heat storage element 54 is shown. The heat storage element 54 can be tubular and has a preheating chamber 541 containing a heat storage body 542 and an electric heating rod 543. One end of the heat storage element 54 has an inlet pipe 545, and the other end has an outlet pipe 546. The heat storage element 54 also has a heat exchange coil 544, which connects the inlet pipe 545 and the outlet pipe 546. Water enters the heat storage element 54 from the inlet pipe 545, undergoes heat exchange, and then exits from the outlet pipe 546. Therefore, without changing the power and volume of the steam generator 51, the steam generation can be increased, the temperature of the items to be cleaned can rise quickly, and the washing and sterilization time can be shortened.

[0082] A washing device 100 according to a specific embodiment of the present invention will now be described with reference to the accompanying drawings.

[0083] Combination Figures 1 to 13According to an embodiment of the present invention, the washing device 100 has a washing chamber 101, which contains an upper dish rack 12 and a lower dish rack 13. The dish racks can be used to hold items to be washed. The washing chamber 101 is provided with multiple spray arms, each with multiple spray nozzles. Specifically, an upper spray arm 23a is located above the upper dish rack 12, and a lower spray arm 23b is located below the lower dish rack 13. A rotatable spray arm 22 and a middle spray arm 23c are located between the upper and lower dish racks 13. The spray arm 22 is located in the middle of the washing chamber 101, facilitating the spraying of water or steam to various locations to improve the cleaning effect. When there are many items to be washed, multiple spray arms can be activated simultaneously. Alternatively, a washing mode can be selected according to the actual situation. For example, when the user only places items in the lower dish rack 13, only the spray arm and the lower spray arm 23b can be activated, which is energy-efficient. The washing equipment 100 may also include a delivery pipe 14, which is used to connect at least one of the upper spray arm 23a, lower spray arm 23b and middle spray arm 23c in the washing chamber 101. The water inlet of the delivery pipe 14, the inlet of the water inlet channel 31 and the inlet of the air inlet channel 32 may be arranged in an adjacent manner to facilitate pipeline connection.

[0084] Combination Figure 1 A water cup 11 is located below the washing chamber 101. The water cup 11 is connected to the washing pump 41 and the connecting pipe 30. The washing pump 41 can draw water from the water cup 11 to supply water to the connecting pipe 30. The connecting pipe 30 extends from the bottom of the washing chamber 101 along the side wall to the top, forming a horizontally placed U-shape. The top end of the connecting pipe 30 is connected to the upper spray arm 23a, the middle part is connected to the spray arm 22 and the middle spray arm 22c, and the bottom end is connected to the lower spray arm 23b, so as to supply water to multiple spray arms. Figure 2 and Figure 3 Furthermore, the top of the connecting pipe 30 is provided with a connecting arm 25, and the upper spray arm 23a is connected to the connecting arm 25. The middle part of the connecting pipe 30 extends laterally into a branch pipe 141 in the direction away from the drive module 21. The connecting arm 25 can be connected to the branch pipe 141, and multiple middle spray arms 23c can be connected to the connecting arm 25 to improve the spraying efficiency. The multiple middle spray arms 23c form two parallel cross-shaped structures in the middle of the washing chamber 101, which can achieve the effect of the sprayed medium quickly covering the washing chamber 101.

[0085] Combination Figure 6The connecting pipe is equipped with a water inlet channel 31 and an air inlet channel 32. The water inlet channel 31 has a first water inlet 31a and a water outlet 31b. The water outlet 31b is connected to the washing module 20, and the first water inlet 31a is connected to the washing pump 41, so that water can enter the washing module 20 through the water inlet channel 31. The delivery pipe 14 is equipped with a second water inlet 14a, which can directly supply water to the upper, middle, and lower spray arms 23b. The air inlet channel 32 is equipped with an air inlet 32a and an air outlet 32b. The air inlet 32a is connected to the air generator, and the air outlet 32b is connected to the first water inlet 31a of the water inlet channel 31.

[0086] In addition, the delivery pipe 14 in this invention can be integrated with the connecting pipe 30.

[0087] In use, the drive pump 52 drives water into the steam generator 51. The steam generated by the steam generator 51 enters the water inlet channel 31 through the air inlet channel 32 and then reaches the washing module 20, where it is sprayed into the washing chamber 101. A check structure is provided between the water inlet channel 31 and the air inlet channel 32. The check structure may include a check section 321 and a one-way valve 33. The check section 321 is U-shaped within the air inlet channel 32. The one-way valve 33 is located within the check section 321 and adjacent to the air outlet 32b. The one-way valve 33 prevents washing water from flowing back to the steam generator 51. Figure 6 The one-way valve 33 may include a sealing sleeve and an elastic element, wherein the sealing sleeve is located above the elastic element to achieve one-way flow from the air inlet channel 32 to the water inlet channel 31. Figure 5 The diagram illustrates the operating state of the washing equipment 100 when releasing steam. The steam pushes open the one-way valve 33 on the check section 321, allowing steam to pass through. (Combined with...) Figure 5 and Figure 6 Firstly, because the check section 321 is constructed in an inverted U-shape, if the washing water flows back to the air intake section 322, it needs to overcome its own weight. Secondly, when the washing water reaches the one-way valve 33, the one-way valve 33 can act as a seal to further prevent the washing water from flowing back. For details, see... Figure 6 The side wall of the check section 321 extends laterally to form a stop rib 323. The stop rib 323 can abut against the sealing sleeve to improve the sealing performance and make the one-way valve 33 move only downward. When the one-way valve 33 is subjected to a downward thrust, it can move downward appropriately. After the thrust disappears, the elastic force of the elastic element resets the one-way valve 33.

[0088] The check section 321 may not be equipped with a one-way valve 33. Since the check section 321 is constructed with a U-shaped tube structure, the drive pump 52 uses an electromagnetic pump. The reverse sealing characteristic of the electromagnetic pump can also limit the backflow of washing water.

[0089] Combination Figure 2 and Figure 8Furthermore, the washing module 20 includes a drive module 21, a spray arm 22, and a water distribution pipe 24. The drive module 21 includes a drive gear 211 and two driven gears 212. The two driven gears 212 mesh with the drive gear 211 respectively. The spray arm 22 is connected to the driven gear 212. When the drive gear 211 rotates, it can drive the driven gear 212 to rotate, thereby driving the spray arm 22 to rotate.

[0090] More specifically, combined Figure 9 and Figure 10 The drive module 21 also includes an oil seal 213, a clip 214, a bearing 215, and a housing 216. The bearing 215, clip 214, and oil seal 213 are sequentially fitted onto the shaft of the driven gear 212 to improve the gear's operational stability and sealing. The water distribution pipe 24 has an inlet and an outlet. The outlet is fitted onto the outer circumference of the gear shaft of the driven gear 212, the inlet is connected to the upper end of the water inlet channel 31, and the outlet of the water distribution pipe 24 is fitted onto the outer circumference of the gear shaft of the driven gear 212 to supply water or steam to the spray arm 22.

[0091] According to the washing device 100 of the present invention, the washing module 20 can accommodate both water spraying and steam spraying modes, which helps to simplify the structure. During operation, it can prevent the washing water from flowing back into the steam module 50, avoid clogging of the steam module 50, and improve the working efficiency and cleanliness of the steam module 50.

[0092] In addition, combined Figure 13 The washing device 100 of the present invention may also be equipped with a water softener 61 to soften the water supplied by the water source and optimize the washing performance. The washing device 100 may be a dishwasher, a bottle cleaner, etc. The washing device 100 may also include a water tank 62 to store water supplied by the water source for use. The water softener 61 may be installed upstream of the water tank 62 to store softened water in the water tank 62 and save time.

[0093] In the description of this invention, the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description.

[0094] In this invention, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Additionally, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A washing device, characterized in that, include: The main body of the equipment has a washing chamber inside it; A washing module, which is connected to the main body of the equipment and is adapted to spray a medium into the washing chamber; A connecting pipe is provided, which is connected to the washing module. A water inlet module is connected to the connecting pipe to supply water to the washing module; A steam module, connected to the connecting pipe, supplies steam to the washing module. The washing equipment has a check valve structure that restricts the backflow of water in the connecting pipe to the steam module; The connecting pipe includes: A water inlet channel, wherein the inlet of the water inlet channel is connected to the water inlet module and the outlet is connected to the washing module; An air intake channel, wherein the inlet of the air intake channel is connected to the steam module and the outlet is connected to the water intake channel. The check structure includes a check section formed by at least a portion of the air intake channel, the check section extending in a vertical direction, with its lower end leading to the water intake channel and its upper end leading to the steam module.

2. The washing equipment according to claim 1, characterized in that, The air intake channel further includes an air intake section that extends vertically, with its upper end connected to the upper end of the check section. The air intake section and the check section are connected to form a U-shaped channel with an opening facing downwards.

3. The washing equipment according to claim 1, characterized in that, The height of the check section shall not be less than 50 mm; and / or The width of the cross-section of the check valve section is no greater than 10 mm; and / or The check valve section is a circular channel with an inner diameter of no more than 5 mm; and / or The lower end of the check valve section is directly connected to the water inlet channel.

4. The washing equipment according to claim 1, characterized in that, The water inlet channel extends vertically and its lower end is designed as an inlet. Water in the main body of the equipment is suitable to flow into the inlet of the water inlet channel to form a liquid seal structure to facilitate the passage of steam. The connection position between the air inlet channel and the water inlet channel is higher than the inlet of the water inlet channel.

5. The washing equipment according to claim 1, characterized in that, The inlet of the air intake channel and the inlet of the water intake channel both extend in the vertical direction, and the inlet of the air intake channel is adjacent to the inlet of the water intake channel.

6. The washing apparatus according to any one of claims 1-5, characterized in that, The check structure also includes a one-way valve configured to allow steam to flow unidirectionally from the steam module to the connecting pipe.

7. The washing equipment according to claim 6, characterized in that, The one-way valve is integrated into the connecting pipe, between the connecting pipe and the steam module, inside the steam module, or upstream of the steam module.

8. The washing apparatus according to any one of claims 1-5, characterized in that, The main body of the device also includes a water cup, which is located below the washing chamber and communicates with the washing chamber. The water inlet module includes a washing pump, which is connected to the water cup and the connecting pipe respectively; and / or the inlet of the steam module is connected to the water cup.

9. The washing apparatus according to any one of claims 1-5, characterized in that, The steam module includes: A steam generator, which is connected to the connecting pipe, generates steam and sends it to the washing module; A drive pump, connected to the steam generator, drives water into the steam generator. Wherein, the driving pump is an electromagnetic pump; or the driving pump is a pump body structure with an integrated sealing valve; or the driving pump is a pump body structure with an integrated reverse shut-off check valve; or the driving pump is located upstream of the steam generator.

10. The washing apparatus according to any one of claims 1-5, characterized in that, The washing module includes: The drive module is connected to the main body of the device; The spray arm is connected to the drive module and driven to rotate by the drive module. The spray arm is connected to the connecting pipe and is provided with nozzles for spraying media into the washing chamber.

11. The washing equipment according to claim 10, characterized in that, The spray arm is tubular, with one end connected to the drive module, and is adapted to be driven by the drive module to rotate about the central axis of the spray arm.

12. The washing equipment according to claim 10, characterized in that, The drive module includes a drive gear and at least one driven gear, the driven gear meshing with the drive gear, and each driven gear is connected to a corresponding spray arm.

13. The washing equipment according to claim 12, characterized in that, The washing module further includes a water distribution pipe, the inlet of which is connected to the connecting pipe, and the outlet of which is sleeved on the outer circumference of the gear shaft of the driven gear; and / or The spray arm is detachably connected to the driven gear.

Images