Filtering device and water purifying equipment

Abstract

The utility model relates to the technical field of water purification equipment, and discloses a filtering device and water purification equipment, the filtering device comprises a shell, a filter element structure and an ultrasonic cleaner; a through hole is formed in one end of the shell in the length direction, a filtering cavity is formed in the shell, and a water inlet assembly and a water outlet assembly communicated with the filtering cavity are arranged on the shell; the filter element structure is arranged in the filter cavity; the ultrasonic cleaner is hermetically connected to the through hole, and one end of the ultrasonic cleaner extends into the filter cavity through the through hole. According to the filtering device, the filtering structure is cleaned through the ultrasonic cleaner, cleaning is thorough, the filtering structure is not damaged, and the filtering device is efficient, convenient and wide in application.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a filtering device and water purification equipment. Background Art

[0002] As people's living standards gradually improve, their demands for safer, more convenient, and more personalized drinking water are also increasing. Water purifiers, such as water purifiers or drinking fountains, are equipped with filtration devices that filter and purify water, effectively meeting these water needs and have gradually become an important household appliance.

[0003] As the core component of the filtering device, the filter element often accumulates dirt due to long-term use, resulting in a decrease in filtering performance. Normally, in water purification equipment such as water purifiers or water dispensers, the filter element is directly discarded after use (the filter element cannot be disassembled and washed) or cleaned manually. Traditional cleaning methods usually involve physical scrubbing or chemical solvent immersion, which not only has low cleaning efficiency, but also may damage the filter element material and shorten its service life. In addition, these cleaning methods are often unable to completely remove the tiny particles inside the filter element, affecting the regeneration effect of the filter element. Moreover, the existing filter element cleaning or regeneration methods are generally non-automatic, requiring manual cleaning after disassembly of the filter element inner core, and cannot achieve automatic cleaning. The cleaning steps are cumbersome and inefficient, and there are disadvantages such as complex disassembly and assembly and low reliability. Utility Model Content

[0004] In view of this, the utility model provides a filtering device and a water purification device to solve the problems of low cleaning efficiency, possible damage to the filter element material, impact on the regeneration effect of the filter element, and cumbersome cleaning steps in traditional cleaning methods.

[0005] In a first aspect, the present invention provides a filtering device, comprising:

[0006] The shell has a through hole at one end in the length direction, a filter cavity is provided inside the shell, and a water inlet assembly and a water outlet assembly connected to the filter cavity are provided on the shell;

[0007] A filter element structure is arranged in the filter cavity;

[0008] An ultrasonic cleaner is sealed and connected to the through hole, and one end of the ultrasonic cleaner extends through the through hole and is placed in the filter cavity.

[0009] Beneficial effects: One end of the ultrasonic cleaner is extended into the filter cavity through the through hole. When the filter element structure needs to be cleaned, the ultrasonic cleaner can generate ultrasonic waves in the filter cavity. Ultrasonic waves can be used to ultrasonically clean the dirt attached to the filter element structure. The vibration of the ultrasonic waves can break the adhesion between the dirt and the filter element material, thereby achieving a complete separation of the dirt, cleaning and regenerating the filter element. The vibration of the ultrasonic waves can penetrate deep into the interior of the filter element structure, effectively removing tiny particles that are difficult to reach with traditional cleaning methods, thereby restoring the original filtering performance of the filter element structure and cleaning more thoroughly. Compared with physical scrubbing or chemical cleaning, ultrasonic cleaning has almost no damage to the material of the filter element structure, extending the service life of the filter element structure. At the same time, the ultrasonic cleaning process has a high degree of automation and is easy to operate, which greatly reduces manual intervention and cleaning time. It is also applicable to various types of filter elements and has broad market application prospects. In addition, the ultrasonic cleaner is sealed and connected to the through hole to prevent water in the filter chamber from overflowing. The main body of the ultrasonic cleaner can also be set outside the shell to avoid occupying the space of the filter chamber, so that the overall volume of the filter device will not increase too much; the other end of the ultrasonic cleaner can also be easily connected to the controller of the water purification equipment through a connecting line.

[0010] In an optional embodiment, the ultrasonic cleaner comprises:

[0011] A mounting assembly is detachably connected to the through hole, the mounting assembly being provided with a mounting cavity, the mounting cavity being provided with a contact wall at one end in the axial direction of the through hole, the contact wall being located within the filter cavity; the mounting assembly is further provided with a first opening communicating with the mounting cavity, the first opening being located outside the filter cavity;

[0012] a generator body, one end of which is connected to the mounting cavity through the first opening and abuts against the contact wall;

[0013] A first sealing gasket is arranged between the mounting assembly and the housing.

[0014] In an optional embodiment, the installation component includes:

[0015] a mounting body, disposed in the through hole, the mounting body being provided with the mounting cavity, the contact wall and the first opening;

[0016] a limiting flange protruding from the outer periphery of the mounting body and located near the contact wall; the limiting flange is located in the filter cavity, and the first sealing gasket is sleeved on the outer periphery of the mounting body and sandwiched between the limiting flange and the outer shell;

[0017] The mounting sleeve is sleeved on the outer periphery of the mounting body and is threadedly connected to the mounting body. The outer shell around the through hole and the first sealing gasket are clamped between the limiting flange and the mounting sleeve.

[0018] In an optional embodiment, the housing comprises:

[0019] The housing has the through hole at one end in the longitudinal direction and a second opening at the other end;

[0020] a shell cover, detachably connected to the second opening and enclosing the filter chamber together with the shell;

[0021] A second sealing gasket is arranged between the shell and the shell cover.

[0022] In an optional embodiment, the inner circumference of the shell cover is sequentially provided with a first thread and a first sealing mounting position, the outer circumference of one end of the shell body having the second opening is sequentially provided with a second thread and a second sealing mounting position, and the first thread is connected to the second thread; the first sealing mounting position and the second sealing mounting position are arranged opposite to each other, and the second sealing gasket is arranged between the first sealing mounting position and the second sealing mounting position.

[0023] In an optional embodiment, a filter element support position is provided in the shell cover, and the filter element support position is arranged opposite to the through hole for supporting the filter element structure.

[0024] In an optional embodiment, a disassembly position is provided on the shell cover, and the disassembly position is protrudingly provided on the shell cover and faces away from the exterior of the shell body.

[0025] In an optional embodiment, a water channel adapter is further included, which is arranged between the ultrasonic cleaner and the filter element structure. The water channel adapter is provided with a transfer water channel, and the transfer water channel is used to connect the water inlet assembly, the filtration water channel on the filter element structure and the water outlet assembly.

[0026] In an optional embodiment, the water inlet assembly includes a first water inlet and a second water inlet, and the water outlet assembly includes a first water outlet and a second water outlet; the transfer waterway includes a transfer water inlet waterway, a first transfer water outlet waterway and a second transfer water outlet waterway; the filtration waterway includes a first filtration waterway and a second filtration waterway; the first water inlet, the filter chamber, the first filtration waterway, the first transfer water outlet waterway and the first water outlet are connected in sequence; the second water inlet, the transfer water inlet waterway, the second filtration waterway, the second transfer water outlet waterway and the second water outlet are connected in sequence.

[0027] In an optional embodiment, the filter element structure includes:

[0028] filter housing;

[0029] a first filter element assembly, which is sleeved on the outer periphery of the filter housing and forms the first filter water path together with the filter housing;

[0030] The second filter element assembly is arranged on the inner periphery of the filter housing and forms the second filter water path together with the filter housing.

[0031] In an optional embodiment, the water channel adapter includes an adapter plate, which is arranged between the filter element structure and the ultrasonic cleaner; the adapter plate is provided with the adapter water inlet water channel, the first adapter water outlet water channel and the second adapter water outlet water channel protruding on a side facing away from the filter element structure;

[0032] A first mounting ring, a second mounting ring, and a third mounting ring are protruded from one side of the adapter plate toward the filter element structure. The first mounting ring, the second mounting ring, and the third mounting ring are sequentially spaced apart in the radial direction, and the first mounting ring is located on the outer ring.

[0033] One end of the first filter element assembly is sealed and sleeved on the inner ring of the first mounting ring and is spaced apart from the second mounting ring. The adapter plate between the first mounting ring and the second mounting ring is provided with a first communication port connected to the first adapter water outlet waterway; the other end of the first filter element assembly is sealed and connected to the outer periphery of the filter housing;

[0034] One end of the filter housing is sealed and sleeved on the inner ring of the second mounting ring and is spaced apart from the third mounting ring. The adapter plate between the second mounting ring and the third mounting ring is provided with a second communication port connected to the adapter water inlet waterway; the other end of the filter housing is sealed and connected to the end of the housing away from the through hole;

[0035] One end of the second filter element assembly is sealed and sleeved on the inner ring of the third mounting ring. The adapter plate of the inner ring of the third mounting ring is provided with a third connecting port connecting the second adapter water outlet waterway and one end of the second filter element assembly; the other end of the second filter element assembly is sealed and connected to the other end of the filter housing.

[0036] In an optional embodiment, the filter shell includes a first shell segment and a second shell segment in sequence along the axial direction, the outer diameter of the first shell segment is smaller than the outer diameter of the second shell segment, a step portion is provided between the first shell segment and the second shell segment, and the first shell segment is arranged close to the water channel adapter; the first filter element assembly is sleeved on the outer periphery of the first shell segment, and together with the first shell segment and the step portion, forms the first filtration water channel.

[0037] In an optional embodiment, the second filter element assembly includes a first filter material group and a second filter material group connected in sequence, the first filter material group is arranged in the first shell section, and the second filter material group is arranged in the second shell section.

[0038] In a second aspect, the present invention further provides a water purification device, comprising the above-mentioned filtering device.

[0039] In an optional embodiment, the water purification equipment is a water purifier or a beverage purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific implementation methods or related technical descriptions. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 This is a schematic diagram of a filtering device according to an embodiment of the present utility model;

[0042] Figure 2 This is an exploded view of a filtering device according to an embodiment of the present utility model;

[0043] Figure 3 A cross-sectional view of a filtering device according to an embodiment of the present utility model;

[0044] Figure 4 This is another cross-sectional view of a filter device according to an embodiment of the present utility model;

[0045] Figure 5 This is an exploded view of an ultrasonic cleaner according to an embodiment of the present invention;

[0046] Figure 6 A cross-sectional view of an ultrasonic cleaner according to an embodiment of the present invention;

[0047] Figure 7 A schematic diagram of a housing according to an embodiment of the present invention;

[0048] Figure 8 A cross-sectional view of a housing according to an embodiment of the present utility model;

[0049] Figure 9 Another cross-sectional view of the housing of an embodiment of the present utility model;

[0050] Figure 10 A schematic diagram of a housing cover according to an embodiment of the present invention;

[0051] Figure 11Another schematic diagram of a housing cover according to an embodiment of the present invention;

[0052] Figure 12 A cross-sectional view of a housing cover according to an embodiment of the present invention;

[0053] Figure 13 A schematic diagram of a waterway adapter according to an embodiment of the present utility model;

[0054] Figure 14 Another schematic diagram of the waterway adapter according to an embodiment of the present utility model;

[0055] Figure 15 A cross-sectional view of a waterway adapter according to an embodiment of the present utility model;

[0056] Figure 16 Another cross-sectional view of the waterway adapter according to an embodiment of the present utility model;

[0057] Figure 17 A schematic diagram of a filter housing according to an embodiment of the present invention;

[0058] Figure 18 A cross-sectional view of a filter housing according to an embodiment of the present invention;

[0059] Figure 19 This is a schematic diagram of a first filter element assembly according to an embodiment of the present invention;

[0060] Figure 20 This is a cross-sectional view of the first filter element assembly according to an embodiment of the present utility model;

[0061] Figure 21 This is a schematic diagram of a second filter element assembly according to an embodiment of the present invention;

[0062] Figure 22 This is a cross-sectional view of the second filter element assembly according to an embodiment of the present invention.

[0063] Description of reference numerals:

[0064] 1. Housing; 11. Through hole; 12. Filter cavity; 13. Housing; 131. Second opening; 132. Second thread; 133. Second sealing mounting position; 14. Housing cover; 141. First thread; 142. First sealing mounting position; 143. Filter element support position; 144. Disassembly position; 15. Second sealing gasket; 161. First water inlet; 162. Second water inlet; 171. First water outlet; 172. Second water outlet; 2. Filter element structure; 21. Filter housing; 211. First housing section; 212. Second housing section; 213. Step; 214. Support rib; 22. First filter element assembly; 221. First end cap; 222. First filter material; 223. Second end cap; 23. Second filter element assembly; 231. End shell; 232. Second filter material; 233. Third end cap; 234. Third filter material; 235. Fourth end cap; 3. Ultrasonic cleaner; 31. Mounting assembly; 311. Mounting cavity; 312. Contact wall; 313. First opening; 314. Mounting body; 315. Limiting flange; 316. Mounting sleeve; 32. Generator body; 33. First sealing gasket; 4. Waterway adapter; 41. Transfer water inlet waterway; 42. First transfer water outlet waterway; 43. Second transfer water outlet waterway; 44. Adapter plate; 45. First mounting ring; 46. Second mounting ring; 47. Third mounting ring. DETAILED DESCRIPTION

[0065] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0066] The following combination Figures 1 to 22 , describing the embodiments of the present utility model.

[0067] According to an embodiment of the present utility model, on the one hand, a filtering device is provided, including a shell 1, a filter element structure 2 and an ultrasonic cleaner 3; a through hole 11 is provided at one end of the shell 1 in the longitudinal direction, a filter chamber 12 is provided inside the shell 1, and a water inlet assembly and a water outlet assembly connected to the filter chamber 12 are provided on the shell 1; the filter element structure 2 is arranged in the filter chamber 12; the ultrasonic cleaner 3 is sealed and connected at the through hole 11, and one end of the ultrasonic cleaner is extended into the filter chamber 12 through the through hole 11.

[0068] One end of the ultrasonic cleaner 3 extends into the filter chamber 12 through the through hole 11. When the filter element structure 2 needs to be cleaned, the ultrasonic cleaner 3 can generate ultrasonic waves in the filter chamber 12. The ultrasonic waves can be used to ultrasonically clean the dirt attached to the filter element structure 2. The vibration of the ultrasonic waves can break the adhesion between the dirt and the filter element material, thereby achieving a complete separation of the dirt, cleaning and regenerating the filter element. The vibration of the ultrasonic waves can penetrate deep into the interior of the filter element structure 2, effectively removing tiny particles that are difficult to reach with traditional cleaning methods, thereby restoring the original filtering performance of the filter element structure 2 and cleaning more thoroughly. Compared with physical scrubbing or chemical cleaning, ultrasonic cleaning has almost no damage to the material of the filter element structure 2, extending the service life of the filter element structure 2. At the same time, the ultrasonic cleaning process has a high degree of automation and is easy to operate, which greatly reduces manual intervention and cleaning time. It is also applicable to various types of filter elements and has broad market application prospects. Furthermore, the ultrasonic cleaner is sealed and connected to through-hole 11 to prevent water from overflowing from filter chamber 12. The main body of the ultrasonic cleaner can also be positioned outside of housing 1 to avoid occupying space in filter chamber 12, thereby minimizing the overall volume of the filtration device. The other end of ultrasonic cleaner 3 can also be conveniently connected to the controller of the water purification device via a connecting wire. When ultrasonic cleaner 3 is used for cleaning, filter chamber 12 is filled with water, and one end of the ultrasonic generator contacts the water to control its vibrations.

[0069] Specifically, the water inlet assembly and the water outlet assembly are connected to the water supply structure and the water use structure of the water purification equipment respectively.

[0070] In one embodiment, the ultrasonic cleaner 3 includes a mounting assembly 31, a generator body 32 and a first sealing gasket 33; the mounting assembly 31 is detachably connected to the through hole 11, and a mounting cavity 311 is provided on the mounting assembly 31. The mounting cavity 311 is provided with a contact wall 312 at one end in the axial direction of the through hole 11, and the contact wall 312 is located in the filter cavity 12; the mounting assembly 31 is also provided with a first opening 313 that communicates with the mounting cavity 311, and the first opening 313 is located outside the filter cavity 12; one end of the generator body 32 is connected to the mounting cavity 311 through the first opening 313 and abuts against the contact wall 312; the first sealing gasket 33 is arranged between the mounting assembly 31 and the housing 1.

[0071] The generator body is detachably connected to the through hole 11 through the mounting assembly 31, which facilitates maintenance of the ultrasonic cleaner 3; the setting of the mounting cavity 311 can also isolate the generator body outside the shell 1 to prevent the generator body from contacting water; the first opening 313 is set on the mounting cavity 311 to facilitate the connection of the generator body; the contact wall 312 can transmit the vibration of the generator body to the filter cavity 12; the first sealing gasket 33 can achieve sealing between the mounting assembly 31 and the shell 1 to prevent water overflow.

[0072] In one embodiment, the mounting assembly 31 includes a mounting body 314, a limiting flange 315 and a mounting sleeve 316: the mounting body 314 is arranged in the through hole 11, and the mounting body 314 is provided with a mounting cavity 311, a contact wall 312 and a first opening 313; the limiting flange 315 is protrudingly arranged on the outer periphery of the mounting body 314 and is located close to the contact wall 312; the limiting flange 315 is located in the filter cavity 12, the first sealing gasket 33 is sleeved on the outer periphery of the mounting body 314, and is clamped between the limiting flange 315 and the outer shell 1; the mounting sleeve 316 is sleeved on the outer periphery of the mounting body 314 and is threadedly connected to the mounting body 314, and the outer shell 1 and the first sealing gasket 33 on the outer periphery of the through hole 11 are clamped between the limiting flange 315 and the mounting sleeve 316.

[0073] An installation cavity 311 is provided on the installation body 314, which can be used to connect the generator body; a contact wall 312 is also provided to facilitate the transmission of the ultrasonic vibration of the generator body to the filter cavity 12; the limiting flange 315 can limit the connection between the installation body 314 and the outer shell 1 to ensure that the contact wall 312 is always located in the filter cavity 12, and can also limit the position of the first sealing gasket 33 to ensure the sealing effect; the threaded connection between the installation sleeve 316 and the installation body 314 can simplify the disassembly and installation of the installation component 31, and can have a more stable connection effect. The state of the first sealing gasket 33 can also be adjusted by rotating the installation sleeve 316 to ensure a better sealing effect.

[0074] As a convertible embodiment, the connection method between the mounting body 314 and the housing 1 can also be screw fastening, clamping, clamping, adhesive fixing, etc.

[0075] In one embodiment, the housing 1 includes a shell 13, a shell cover 14 and a second sealing gasket 15: a through hole 11 is provided at one end of the shell 13 in the longitudinal direction, and a second opening 131 is provided at the other end; the shell cover 14 is detachably connected at the second opening 131 and forms a filter chamber 12 with the shell 13; the second sealing gasket 15 is arranged between the shell 13 and the shell cover 14.

[0076] The detachable connection between the shell cover 14 and the shell 13 facilitates the disassembly of the filter element structure 2 , the replacement and maintenance of the filter element structure 2 , and the disassembly and installation of the ultrasonic cleaner 3 through the second opening 131 .

[0077] In one embodiment, the inner circumference of the shell cover 14 is sequentially provided with a first thread 141 and a first sealing mounting position 142, and the outer circumference of one end of the shell 13 having a second opening 131 is sequentially provided with a second thread 132 and a second sealing mounting position 133, and the first thread 141 is connected to the second thread 132; the first sealing mounting position 142 and the second sealing mounting position 133 are arranged opposite to each other, and the second sealing gasket 15 is arranged between the first sealing mounting position 142 and the second sealing mounting position 133.

[0078] The first thread 141 and the second thread 132 can simplify the connection between the shell cover 14 and the shell body 13, and also facilitate adjustment of the connection position; a second sealing gasket 15 is provided between the first sealing installation position 142 and the second sealing installation position 133 to achieve sealing between the shell cover 14 and the shell body 13.

[0079] Specifically, the first sealing installation position 142 is set at the end of the shell cover 14 away from the filter element structure 2, and the second sealing installation position 133 is set corresponding to the position of the first sealing installation position 142, which can ensure that the second sealing gasket 15 will not fall out easily.

[0080] Furthermore, the first seal mounting position 142 and the second seal mounting position 133 are arranged opposite each other. An annular groove is provided on either the first seal mounting position 142 or the second seal mounting position 133, and the second sealing gasket 15 is disposed within the annular groove. The annular groove can limit the position of the second sealing gasket 15. Preferably, one annular groove can be provided, or at least two annular grooves can be spaced apart, each containing a second sealing gasket 15.

[0081] As an alternative embodiment, the housing cover 14 and the housing 13 may also be directly snap-connected.

[0082] In one embodiment, a filter element support position 143 is provided in the shell cover 14 . The filter element support position 143 is arranged opposite to the through hole 11 and is used to support the filter element structure 2 .

[0083] The filter element support position 143 can match the shape of the end of the filter element structure 2 away from the through hole 11.

[0084] In one embodiment, a disassembly position 144 is provided on the shell cover 14 . The disassembly position 144 is protruding from the shell cover 14 and facing away from the exterior of the housing 13 .

[0085] The disassembly position 144 is convenient for applying force, and the housing cover 14 can be disassembled by applying force to the disassembly position 144 with a tool or by directly applying force to the disassembly position 144 with a hand. Specifically, the disassembly position 144 can be a cross rib or a frame structure.

[0086] In one embodiment, a water channel adapter 4 is further included, which is arranged between the ultrasonic cleaner 3 and the filter element structure 2. The water channel adapter 4 is provided with a transfer water channel, which is used to connect the water inlet assembly, the filtration water channel on the filter element structure 2 and the water outlet assembly.

[0087] The adapter water channel on the water channel adapter 4 can connect the water inlet assembly, the filtering water channel and the water outlet assembly, optimize the filtering water channel, and achieve filtration and purification of water through the filtering structure.

[0088] As a convertible embodiment, the filtration water channel of the filter element structure 2 can also be directly connected to the water inlet assembly and the water outlet assembly without the need for the water channel adapter 4.

[0089] In one embodiment, the water inlet assembly includes a first water inlet 161 and a second water inlet 162, and the water outlet assembly includes a first water outlet 171 and a second water outlet 172; the transfer water circuit includes a transfer water inlet water circuit 41, a first transfer water outlet water circuit 42 and a second transfer water outlet water circuit 43; the filtration water circuit includes a first filtration water circuit and a second filtration water circuit; the first water inlet 161, the filter chamber 12, the first filtration water circuit, the first transfer water outlet water circuit 42 and the first water outlet 171 are connected in sequence; the second water inlet 162, the transfer water inlet water circuit 41, the second filtration water circuit, the second transfer water outlet water circuit 43 and the second water outlet 172 are connected in sequence.

[0090] Through the water channel adapter 4, the first filter water channel and the second filter water channel of the filter structure can be connected to the corresponding first water inlet 161 and the second water inlet 162 respectively, and connected to the corresponding first water outlet 171 and the second water outlet 172 respectively, so as to avoid water channel intersection between the first filter water channel and the second filter water channel and ensure the filtering effect of the first filter water channel and the second filter water channel.

[0091] As a convertible embodiment, the filtration structure may include one filtration waterway, or may include at least three, and the number of water inlets and the number of water outlets of the water inlet assembly may match the number of filtration waterways, and a one-to-one connection may be achieved through the waterway adapter 4 to ensure independent water inlet, independent filtration and independent water outlet of each filtration waterway.

[0092] In one embodiment, the filter element structure 2 includes a filter housing 21, a first filter element assembly 22 and a second filter element assembly 23; the first filter element assembly 22 is sleeved on the outer periphery of the filter housing 21 and forms a first filter water path with the filter housing 21; the second filter element assembly 23 is arranged on the inner periphery of the filter housing 21 and forms a second filter water path with the filter housing 21.

[0093] By setting the filter shell 21, the first filter element assembly 22 and the second filter element assembly 23 can be divided to avoid water channel intersection and water exchange between the first filter water channel and the second filter water channel; and the first filter element assembly 22 is arranged on the outer periphery of the filter shell 21, and the second filter element assembly 23 is arranged on the inner periphery of the filter shell 21, which can simplify the overall volume of the filter structure and save the space occupied by the filter structure.

[0094] In one embodiment, the waterway adapter 4 includes an adapter plate 44, which is arranged between the filter element structure 2 and the ultrasonic cleaner 3; the adapter plate 44 is provided with an adapter water inlet waterway 41, a first adapter water outlet waterway 42 and a second adapter water outlet waterway 43 on the side facing away from the filter element structure 2; the adapter plate 44 is provided with a first mounting ring 45, a second mounting ring 46 and a third mounting ring 47 on the side facing the filter element structure 2, and the first mounting ring 45, the second mounting ring 46 and the third mounting ring 47 are distributed in sequence along the radial direction, and the first mounting ring 45 is located on the outer ring; one end of the first filter element assembly 22 is sealed and sleeved on the inner ring of the first mounting ring 45, and is spaced apart from the second mounting ring 46, and is provided on the adapter plate 44 between the first mounting ring 45 and the second mounting ring 46. A first connecting port connected to the first adapter water outlet waterway 42; the other end of the first filter element assembly 22 is sealed and connected to the outer periphery of the filter housing 21; one end of the filter housing 21 is sealed and sleeved on the inner ring of the second mounting ring 46, and is spaced apart from the third mounting ring 47, and a second connecting port connected to the adapter water inlet waterway 41 is provided on the adapter plate 44 between the second mounting ring 46 and the third mounting ring 47; the other end of the filter housing 21 is sealed and connected to the end of the outer shell 1 away from the through hole 11; one end of the second filter element assembly 23 is sealed and sleeved on the inner ring of the third mounting ring 47, and a third connecting port connected to one end of the second adapter water outlet waterway 43 and the second filter element assembly 23 is provided on the adapter plate 44 of the inner ring of the third mounting ring 47; the other end of the second filter element assembly 23 is sealed and connected to the other end of the filter housing 21.

[0095] The first mounting ring 45, the second mounting ring 46 and the third mounting ring 47 can be respectively sealed with one end of the first filter element assembly 22, one end of the filter housing 21 and one end of the second filter element assembly 23 to ensure the sealing between the first filtered water path and the second filtered water path at the end close to the through hole 11 to avoid water cross-flow; and can also be conveniently fixedly connected with one end of the first filter element assembly 22, one end of the filter housing 21 and one end of the second filter element assembly 23. The other end of the first filter element assembly 22 is sealedly connected to the periphery of the filter housing 21 to ensure the sealing and fixing effect of the other end. The other end of the filter housing 21 is sealedly connected to the end of the outer shell 1 away from the through hole 11, and the other end of the second filter element assembly 23 is sealedly connected to the other end of the filter housing 21 to ensure the sealing effect of the other end of the second filtered water path.

[0096] As a convertible embodiment, the waterway adapter 4 may also include an adapter plate 44, which is arranged between the filter element structure 2 and the ultrasonic cleaner 3; the adapter plate 44 is provided with an adapter water inlet waterway 41, a first adapter water outlet waterway 42 and a second adapter water outlet waterway 43 on the side facing away from the filter element structure 2; the adapter plate 44 is provided with a first mounting groove, a second mounting groove and a third mounting groove on the side facing the filter element structure 2, and the first mounting groove, the second mounting groove and the third mounting groove are spaced in sequence along the radial direction, and the first mounting groove is located on the outer ring; one end of the first filter element assembly 22 is sealed and sleeved on the outer groove wall of the first mounting groove, and is spaced from the inner groove wall of the first mounting groove, and the groove bottom of the first mounting groove is provided with A first connecting port connected to the first transfer water outlet waterway 42; the other end of the first filter element assembly 22 is sealed and connected to the outer periphery of the filter housing 21; one end of the filter housing 21 is sealed and sleeved on the outer groove wall of the second mounting groove, and is spaced apart from the inner groove wall of the second mounting groove, and a second connecting port connected to the transfer water inlet waterway 41 is provided on the bottom of the second mounting groove; the other end of the filter housing 21 is sealed and connected to the end of the outer shell 1 away from the through hole 11; one end of the second filter element assembly 23 is sealed and sleeved on the outer groove wall of the third mounting groove, and a third connecting port connected to one end of the second transfer water outlet waterway 43 and the second filter element assembly 23 is provided on the bottom of the third mounting groove; the other end of the second filter element assembly 23 is sealed and connected to the other end of the filter housing 21.

[0097] In one embodiment, the filter housing 21 includes a first housing segment 211 and a second housing segment 212 in the axial direction. The outer diameter of the first housing segment 211 is smaller than that of the second housing segment 212. A step 213 is provided between the first and second housing segments 211, 212. The first housing segment 211 is positioned adjacent to the waterway adapter 4. The first filter element assembly 22 is sleeved around the outer periphery of the first housing segment 211 and, together with the first housing segment 211 and the step 213, forms a first filtration waterway. Specifically, support ribs 214 are provided protruding from the outer periphery of the second housing segment 212.

[0098] The provision of the step portion 213 can facilitate the installation and support of the first filter element assembly 22, and can also facilitate the formation of a gap between the first filter element assembly 22 and the filter housing 21 to form a first filter water path.

[0099] The first filter element assembly 22 includes a first end cover 221, a first filter material 222 and a second end cover 223. The first end cover 221 and the second end cover 223 are respectively connected to the two ends of the first filter material 222. The protruding ring on the first end cover 221 is sealed on the inner ring of the first mounting ring 45, and the second end cover 223 is sealed with the step portion 213.

[0100] The first end cap 221 and the second end cap 223 can connect and support both ends of the first filter material 222 . A first sealing ring is provided between the protruding ring of the first end cap 221 and the inner ring of the first mounting ring 45 , and a second sealing ring is provided between the second end cap 223 and the step portion 213 .

[0101] In one embodiment, the second filter element assembly 23 includes a first filter material group 222 and a second filter material group 232 connected in sequence. The first filter material group 222 is disposed within the first shell section 211, and the second filter material group 232 is disposed within the second shell section 212. The first filter material group 222 includes an end shell 231 and a second filter material 232. The second filter material 232 is disposed on the inner periphery of the end shell 231, and the end shell 231 is disposed within the first shell section 211. The second filter material 232 group includes a third end cover 233, a third filter material 234 and a fourth end cover 235. The third end cover 233 and the fourth end cover 235 are respectively arranged at both ends of the third filter material 234. The third filter material 234 is annular. The third end cover 233 is sealed and connected to the end of the end shell 231 away from the water channel adapter 4. The end shell 231 is a tubular structure made of impermeable material. The third end cover 233 is provided with a connection between the inner circumference of the end shell 231 and the inner circumference of the third filter material 234; the fourth end cover 235 is sealed and connected to the shell cover 14, and the fourth end cover 235 is sealed and connected to the second shell section 212.

[0102] The setting of the end shell 231 can separate the water inlet section of the second filtering water path between the first shell section 211 and the end shell 231, so that the incoming water must first pass through the second filter material 232 before reaching the third filter material 234 for filtration and purification, thereby extending the filtration path, increasing the number of filtration times, and achieving better filtration effects.

[0103] Specifically, Figure 3 and Figure 4 In order to show the direction of water flow, the second filter material 232 is hidden and not shown. For details of the second filter material, please refer to Figure 21 and Figure 22 shown.

[0104] The first filter material 222 , the second filter material 232 and the third filter material 234 can be filter elements such as activated carbon fiber, carbon rod, PP cotton, ultrafiltration membrane, etc.

[0105] According to another aspect of an embodiment of the present invention, a water purification device is provided, comprising the aforementioned filtration device. The device further comprises a water inlet structure connected to the water inlet assembly, a water outlet structure connected to the water outlet assembly, and a controller capable of controlling the filtration and purification of the water purification device and the ultrasonic cleaner 3.

[0106] In one embodiment, the water purification device is a water purifier or a drinking water purifier.

[0107] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by this application.

Claims

1. A filtering device, characterized in that: include: The housing (1) is provided with a through hole (11) at one end in the longitudinal direction, a filter cavity (12) is provided inside the housing (1), and a water inlet assembly and a water outlet assembly communicating with the filter cavity (12) are provided on the housing (1); A filter element structure (2) is arranged in the filter cavity (12); An ultrasonic cleaner (3) is sealed and connected to the through hole (11), and one end of the ultrasonic cleaner extends through the through hole (11) and is placed in the filter cavity (12).

2. The filtering device according to claim 1, characterized in that The ultrasonic cleaner (3) comprises: A mounting assembly (31) is detachably connected to the through hole (11); a mounting cavity (311) is provided on the mounting assembly (31); a contact wall (312) is provided at one end of the mounting cavity (311) in the axial direction of the through hole (11); the contact wall (312) is located in the filter cavity (12); the mounting assembly (31) is further provided with a first opening (313) in communication with the mounting cavity (311); the first opening (313) is located outside the filter cavity (12); A generator body (32), one end of which is connected to the installation cavity (311) through the first opening (313) and abuts against the contact wall (312); A first sealing gasket (33) is provided between the mounting assembly (31) and the housing (1).

3. The filtering device according to claim 2, characterized in that: The mounting assembly (31) comprises: A mounting body (314) is disposed in the through hole (11), and the mounting body (314) is provided with the mounting cavity (311), the contact wall (312) and the first opening (313); a limiting flange (315) protruding from the outer periphery of the mounting body (314) and located near the contact wall (312); the limiting flange (315) is located in the filter cavity (12); the first sealing gasket (33) is sleeved on the outer periphery of the mounting body (314) and sandwiched between the limiting flange (315) and the housing (1); The mounting sleeve (316) is sleeved on the outer periphery of the mounting body (314) and is threadedly connected to the mounting body (314); the outer shell (1) on the outer periphery of the through hole (11) and the first sealing gasket (33) are clamped between the limiting flange (315) and the mounting sleeve (316).

4. The filtering device according to any one of claims 1 to 3, characterized in that The housing (1) comprises: The housing (13) is provided with the through hole (11) at one end in the longitudinal direction and a second opening (131) at the other end; a shell cover (14) detachably connected to the second opening (131) and enclosing the filter chamber (12) together with the shell (13); A second sealing gasket (15) is provided between the housing (13) and the housing cover (14).

5. The filtering device according to claim 4, characterized in that The inner circumference of the shell cover (14) is provided with a first thread (141) and a first sealing installation position (142) in sequence, and the outer circumference of one end of the shell (13) provided with the second opening (131) is provided with a second thread (132) and a second sealing installation position (133) in sequence, the first thread (141) is connected to the second thread (132); the first sealing installation position (142) and the second sealing installation position (133) are arranged opposite to each other, and the second sealing gasket (15) is arranged between the first sealing installation position (142) and the second sealing installation position (133).

6. The filtering device according to claim 4, characterized in that A filter element support position (143) is provided in the shell cover (14), and the filter element support position (143) is arranged opposite to the through hole (11) and is used to support the filter element structure (2).

7. The filtering device according to claim 5, characterized in that A disassembly position (144) is provided on the shell cover (14), and the disassembly position (144) is protrudingly arranged on the shell cover (14) and facing away from the exterior of the housing (13).

8. The filtering device according to any one of claims 1 to 3 or 5 to 7, characterized in that It also includes a waterway adapter (4) arranged between the ultrasonic cleaner (3) and the filter element structure (2), and the waterway adapter (4) is provided with a transfer waterway, and the transfer waterway is used to connect the water inlet assembly, the filtration waterway on the filter element structure (2) and the water outlet assembly.

9. The filtering device according to claim 8, characterized in that The water inlet assembly comprises a first water inlet (161) and a second water inlet (162); the water outlet assembly comprises a first water outlet (171) and a second water outlet (172); the switching waterway comprises a switching water inlet waterway (41), a first switching water outlet waterway (42) and a second switching water outlet waterway (43); the filtering waterway comprises a first filtering waterway and a second filtering waterway; the first water inlet (161), the filtering chamber (12), the first filtering waterway, the first switching water outlet waterway (42) and the first water outlet (171) are connected in sequence; the second water inlet (162), the switching water inlet waterway (41), the second filtering waterway, the second switching water outlet waterway (43) and the second water outlet (172) are connected in sequence.

10. The filtering device according to claim 9, characterized in that The filter element structure (2) comprises: filter housing (21); A first filter element assembly (22) is sleeved on the outer periphery of the filter housing (21) and forms the first filter water path together with the filter housing (21); The second filter element assembly (23) is arranged on the inner periphery of the filter housing (21) and forms the second filter water path together with the filter housing (21).

11. The filtering device according to claim 10, characterized in that The water channel adapter (4) comprises an adapter plate (44), which is arranged between the filter element structure (2) and the ultrasonic cleaner (3); the adapter plate (44) is provided with the adapter water inlet channel (41), the first adapter water outlet channel (42), and the second adapter water outlet channel (43) protruding from a side of the adapter plate (44) facing away from the filter element structure (2); A first mounting ring (45), a second mounting ring (46) and a third mounting ring (47) are protruded from one side of the adapter plate (44) toward the filter element structure (2); the first mounting ring (45), the second mounting ring (46) and the third mounting ring (47) are spaced apart in sequence along the radial direction, and the first mounting ring (45) is located on the outer ring; One end of the first filter element assembly (22) is sealed and sleeved on the inner ring of the first mounting ring (45), and is spaced apart from the second mounting ring (46); a first communication port for communicating with the first transfer water outlet waterway (42) is provided on the adapter plate (44) between the first mounting ring (45) and the second mounting ring (46); the other end of the first filter element assembly (22) is sealed and connected to the outer periphery of the filter housing (21); One end of the filter housing (21) is sealed and sleeved on the inner ring of the second mounting ring (46) and is spaced apart from the third mounting ring (47); a second communication port communicating with the transfer water inlet channel (41) is provided on the adapter plate (44) between the second mounting ring (46) and the third mounting ring (47); the other end of the filter housing (21) is sealed and connected to an end of the housing (1) away from the through hole (11); One end of the second filter element assembly (23) is sealingly sleeved on the inner ring of the third mounting ring (47); the adapter plate (44) of the inner ring of the third mounting ring (47) is provided with a third communication port for connecting the second adapter water outlet waterway (43) and one end of the second filter element assembly (23); the other end of the second filter element assembly (23) is sealingly connected to the other end of the filter housing (21).

12. The filtering device according to claim 10, characterized in that The filter housing (21) includes a first housing segment (211) and a second housing segment (212) in sequence along the axial direction. The outer diameter of the first housing segment (211) is smaller than the outer diameter of the second housing segment (212). A step portion (213) is provided between the first housing segment (211) and the second housing segment (212). The first housing segment (211) is arranged close to the waterway adapter (4). The first filter element assembly (22) is sleeved on the outer periphery of the first housing segment (211) and forms the first filtration waterway together with the first housing segment (211) and the step portion (213). And / or, the second filter element assembly (23) includes a first filter material (222) group and a second filter material (232) group connected in sequence, the first filter material (222) group is arranged in the first shell section (211), and the second filter material (232) group is arranged in the second shell section (212).

13. A water purification device, characterized in that: A filter device comprising the filter device according to any one of claims 1 to 12.

14. The water purification device according to claim 13, characterized in that: The water purification equipment is a water purifier or a drinking water purifier.

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