Filter element device and water purifier

Abstract

The present invention provides a filter element device, including a base and a filter element body, wherein a rotatable self-locking structure is provided on the base, and a guide structure is provided on the filter element body. When the filter element body is pressed to move in the direction of the base, the guide structure and the self-locking structure abut against each other, so that the guide structure rotates relative to the base. When the external force disappears, the guide structure moves relative to the self-locking structure, thereby realizing the self-locking or unlocking of the filter element body relative to the base. At the same time, the present invention also provides a water purifier. The filter element device provided by the present invention, by providing a self-locking structure on the base and a guide structure on the filter element body, the user presses the filter element body to make the guide structure and the self-locking structure cooperate, thereby realizing the self-locking and unlocking of the filter element. The operation is simple and quick, and the filter element can be quickly installed and disassembled, saving time and effort and being easy to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of water purifiers, and in particular relates to a filter element device and a water purifier. Background Art

[0002] At present, most household water filtration uses pre-coarse filtration, membrane fine filtration, and post-filtration to improve taste. However, to complete the filtration of so many filter materials, previous water purifiers need to install multiple filter cartridges, each of which is loaded with different filter materials. To complete the above filtration and obtain high-quality drinking water, the number of filter cartridges increases, and the volume occupied by the household water purifier also becomes quite large, resulting in a large size of the water purifier, which brings a lot of inconvenience to use in the home. Currently, small-sized water purifiers are increasingly recognized and favored by the market, so the various components of the water purifier need to be integrated and modularized. The integration and modularization of the filter cartridges mainly adopts the composite of filter cartridges and multi-stage filter materials.

[0003] In the structure of a water purifier, the filter element plays the main role of filtration. In the current market, most filter elements do not have a structure to stop water or prevent water leakage when they are replaced, resulting in water overflow during the replacement process, affecting user experience and after-sales service. In addition, if the filter element needs to be replaced, professional after-sales service personnel are required to come to the site to disassemble and replace it and disconnect the water supply of the entire machine. If the maintenance personnel are off duty, the user cannot replace the filter element by themselves, which brings great inconvenience to the replacement of the filter element of the water purifier. Especially in some water purifiers with inverted filter elements, there is no self-locking feature of the filter element. When the filter element is removed, water leaks from the filter element or the entire water purifier. In serious cases, it will cause the motor components of the entire machine to malfunction and fail to operate. For users, it increases maintenance time and maintenance costs, and for equipment manufacturers, it affects the brand reputation of the merchant.

[0004] At present, there are two common ways to replace the filter element of a water purifier. One method is to use a threaded connection, and a part of the filter element is fixed to the water purifier body. When the user replaces the filter element, he needs to use a special wrench to remove the filter element from the water purifier body. In addition, it is very inconvenient to replace the filter element in this way. It requires a lot of force to remove the filter element, and users often cannot replace it by themselves, which reduces the user experience; the other method uses a filter element snap-on rotation method to fix it on the water purifier body. When the user replaces the filter element, he can remove the filter element by manually rotating the handle, which also requires a lot of force. The above two methods of replacing the filter element both result in a poor user experience. Summary of the Invention

[0005] The main purpose of the present invention is to provide a filter element device and a water purifier. The filter element device can be self-locked and unlocked by pressing the filter element device. The operation is simple and quick, and the filter element body can be quickly installed and disassembled, saving time and effort and being easy to operate.

[0006] To achieve the above objectives, the specific technical solutions of the filter element device and water purifier of the present invention are as follows:

[0007] The present invention provides a filter element device, including a base and a filter element body. The base is provided with a rotatable self-locking structure, and the filter element body is provided with a guide structure. When the filter element body is pressed and moved along the direction of the base, the guide structure and the self-locking structure abut against each other, so that the guide structure rotates relative to the base. When the external force disappears, the guide structure moves relative to the self-locking structure, thereby realizing self-locking or unlocking of the filter element body relative to the base.

[0008] As a preferred embodiment provided by the present invention, an elastic part is provided on the base. When the filter element body is pressed, the filter element body and the elastic part abut against each other. When the external force disappears, the filter element body is subjected to the restoring force generated by the elastic part to move the filter element body in a direction away from the base.

[0009] As a preferred embodiment provided by the present invention, a mounting groove is provided on the base, the self-locking structure is movably provided on the mounting groove, and the guide structure and the self-locking structure are in contact with each other so that the self-locking structure can rotate in the mounting groove.

[0010] As a preferred embodiment provided by the present invention, a fixing plate is fixedly provided on the base, a limiting groove is provided on the fixing plate, a convex edge is provided on the self-locking structure, and the convex edge is accommodated in the limiting groove so that the limiting groove limits the self-locking structure.

[0011] As a preferred embodiment provided by the present invention, a limiting hole is provided on the fixed plate, a guide column is provided on the base, an elastic part is sleeved on the outer wall of the guide column, and a push block is provided on the outer wall of the elastic part, which is pushed open to cooperate with the limiting hole and press the push block to move in the limiting hole.

[0012] As a preferred embodiment provided by the present invention, a accommodating space is provided on the base, a guide plate is provided in the accommodating space, a first water inlet and a first water outlet are provided at the bottom of the accommodating space, a second water inlet and a second water outlet are provided on the guide plate, the first water inlet and the second water inlet are arranged opposite to each other, and the second water outlet and the second water outlet are arranged opposite to each other, so that the base forms a water inlet passage and a water outlet passage.

[0013] As a preferred embodiment provided by the present invention, the self-locking structure includes a locking plate and a pushing plate, and the locking plate and the pushing plate are clamped and fixed.

[0014] As a preferred embodiment provided by the present invention, a card slot is provided on the side wall of the locking plate, and a limiting boss is provided on the side wall of the pushing plate. The limiting boss and the card slot cooperate to clamp and fix the locking plate and the pushing plate.

[0015] As a preferred embodiment provided by the present invention, a locking portion is provided on the locking plate, and a guide portion is provided on the pushing plate. The guide structure and the locking portion abut against each other, and the guide portion guides the guide structure and the locking portion to self-lock or unlock.

[0016] As a preferred embodiment provided by the present invention, a plurality of locking parts are provided on the locking plate, and a guide groove is provided between two adjacent locking parts.

[0017] As a preferred embodiment provided by the present invention, the locking portion includes a first guide mounting surface and a second guide mounting surface, and an angle is set between the first guide mounting surface and the second guide mounting surface.

[0018] As a preferred embodiment provided by the present invention, the locking part includes an unlocking guide surface, the unlocking guide surface is connected to a self-locking limit surface, and the self-locking limit surface and the self-locking guide surface are connected so that the guide structure slides to the self-locking limit surface through the self-locking guide surface, thereby realizing self-locking of the guide structure.

[0019] As a preferred embodiment provided by the present invention, a plurality of guide parts are provided on the pushing plate, and the plurality of guide parts are connected and arranged in sequence.

[0020] As a preferred embodiment provided by the present invention, a protrusion is provided at the bottom of the filter element body, and a guide boss is provided on the outer wall of the protrusion.

[0021] As a preferred embodiment provided by the present invention, the guide boss includes a second guide surface, a third guide surface and a limiting surface, and the limiting surface is connected to the second guide surface and the third guide surface in sequence.

[0022] As a preferred embodiment provided by the present invention, an angle is set between the second guide surface and the third guide surface, and the filter element body is pressed so that the second guide surface and the third guide surface slide into the guide groove with the first guide mounting surface and the second guide mounting surface, and the guide groove contacts the first guide surface. Under the action of external force, the self-locking structure rotates to make the filter element body and the push block abut against each other. When the external force disappears, the filter element body is subjected to the spring restoring force, the third guide surface contacts the self-locking guide surface, and the first limit surface contacts the self-locking limit surface, thereby realizing self-locking of the filter element assembly and the base; the filter element body is pressed, the second guide surface contacts the first guide surface, and the self-locking structure rotates under the action of external force. When the external force disappears, the third guide surface abuts the unlocking guide surface, so that the guide boss slides into the guide groove, thereby realizing separation of the filter element body and the base.

[0023] The present invention also provides a water purifier, comprising the filter element device as described above.

[0024] The filter element device and water purifier provided by the present invention have the following advantages:

[0025] The filter element device provided by the present invention has a self-locking structure arranged on the base and a guide structure arranged on the filter element body. The user presses the filter element body to make the guide structure and the self-locking structure cooperate, thereby realizing self-locking and unlocking of the filter element. The operation is simple and quick, and the filter element can be quickly installed and disassembled, saving time and effort and being easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the explosion structure of the filter element device provided by the present invention;

[0027] Figure 2 A schematic diagram of a partial explosion structure of the filter element device provided by the present invention;

[0028] Figure 3 A schematic diagram of the overall structure of the base in the filter element device provided by the present invention;

[0029] Figure 4 A schematic structural diagram of the guide plate in the filter element device provided by the present invention;

[0030] Figure 5 A schematic diagram of the structure of the installation of the base and guide plate of the filter element device provided by the present invention;

[0031] Figure 6 A cross-sectional view of the installation of the base and guide plate of the filter element device provided by the present invention;

[0032] Figure 7 This is a schematic diagram of the overall structure of the self-locking structure of the filter element device provided by the present invention;

[0033] Figure 8 A schematic diagram of the overall structure of the push plate of the filter element device provided by the present invention;

[0034] Figure 9 The overall structure of the locking plate of the filter element device provided by the present invention is shown in FIG. Figure 1 ;

[0035] Figure 10 The overall structure of the locking plate of the filter element device provided by the present invention is shown in FIG. Figure 2 ;

[0036] Figure 11 This is a schematic diagram of the assembly structure of the base, guide plate and self-locking structure of the filter element device provided by the present invention;

[0037] Figure 12 A cross-sectional view of the base, guide plate, and self-locking structure of the filter element device provided by the present invention;

[0038] Figure 13 A schematic structural diagram of a fixing plate of a filter element device provided by the present invention;

[0039] Figure 14 A cross-sectional view of the installation structure of the base, self-locking structure, and fixing plate of the filter element device provided by the present invention;

[0040] Figure 15 A schematic diagram of the overall structure of the filter element body of the filter element device provided by the present invention;

[0041] Figure 16 A schematic diagram of a portion of the structure of the filter element body of the filter element device provided by the present invention;

[0042] Figure 17 Schematic diagram of the structure of the filter element body installed in the filter element device provided by the present invention Figure 1 ;

[0043] Figure 18 Schematic diagram of the structure of the filter element body installed in the filter element device provided by the present invention Figure 2 ;

[0044] Figure 19 This is a schematic structural diagram of a replacement filter element body of the filter element device provided by the present invention.

[0045] Description of the marks in the figure:

[0046] 1. Filter element body; 11. End face; 12. Protrusion; 121. Third water inlet; 122. Third water outlet; 13. Guide boss; 131. Guide limit surface; 132. Second guide surface; 133. Third guide surface;

[0047] 2. Fixed plate; 21. Limiting groove; 22. Limiting hole;

[0048] 3. Self-locking structure; 31. Locking plate; 311. Slot; 312. Locking portion; 3121. First guide mounting surface; 3122. Second guide mounting surface; 3123. Guide groove; 3124. Unlocking guide surface; 3125. Self-locking guide surface; 3126. Self-locking limiting surface; 313. Raised edge; 32. Pushing plate; 321. Guide portion; 322. Limiting boss; 323. First guide surface;

[0049] 4. Guide plate; 41. Second water inlet; 42. Second water outlet; 43. Screw hole;

[0050] 5. Base; 51. First water inlet; 52. First water outlet; 53. First screw column; 54. Guide column; 55. Mounting slot; 56. Second screw column;

[0051] 6. Push block; 61. Abutment surface;

[0052] 7. Screw; 8. Spring; 9. Sealing ring. DETAILED DESCRIPTION

[0053] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0056] like Figure 1 and Figure 2 As shown, the filter element device provided by the present invention includes a filter element body 1 and a base 5. The filter element body 1 and the base 5 are screwed together to make the filter element body 1 and the base 5 self-locking. The filter element body 1 is pressed to separate the filter element body 1 and the base 5, thereby realizing the removal of the filter element body 1 and the base 5. The filter element body 1 and the base 5 can be quickly installed and removed by a simple pressing method without unnecessary steps, which is simple and convenient, saving time and effort.

[0057] Specifically, a guide plate 4 is provided on the base 5, a self-locking structure 3 is provided above the guide plate 4, and a fixed plate 2 is provided above the self-locking structure 3. The fixed plate 2, the self-locking structure 3, and the guide plate 4 are arranged in sequence in the accommodating space provided on the base 5 so that the filter element body 1 and the base 5 are matched, thereby realizing quick installation and disassembly by pressing the filter element body 1 and the base 5.

[0058] Furthermore, a rotatable self-locking structure 3 is provided on the base 5, and a guide structure is provided on the filter element body 1. When the filter element body 1 is pressed and moved in the direction of the base 5, the guide structure and the self-locking structure 3 abut against each other, so that the guide structure rotates relative to the base 5. When the external force disappears, the guide structure moves relative to the self-locking structure 3, thereby realizing self-locking or unlocking of the filter element body 1 relative to the base 5.

[0059] like Figure 3 As shown, the base 5 is provided with a mounting groove 55, and the self-locking structure 3 is movably mounted on the mounting groove 55. The guide structure and the self-locking structure 3 abut against each other to enable the self-locking structure 3 to rotate within the mounting groove 55. Specifically, the bottom of the accommodating space of the base 5 is provided with a first water inlet 51 and a second water inlet 41. Screw holes 43 are provided on one side of the first water inlet 51 and the second water inlet 41. The upper surface of the base 5 is provided with a first screw post 53 and a guide post 54.

[0060] like Figure 4 and Figure 5 As shown, the upper surface of the guide plate 4 is provided with screw holes 43. The guide plate 4 is provided with a second water inlet 41 and a second water outlet 42. The first water inlet 51 and the second water inlet 41 are connected to form a water inlet pipe, and the first water outlet 52 and the second water outlet 42 are connected to form a water outlet pipe. The guide plate 4 is disposed within the accommodating space and is secured by screws 7 through the screw holes 43 and the second screw posts 56, so that the guide plate 4 is accommodated within the accommodating space of the base 5.

[0061] Furthermore, the guide plate 4 is accommodated in the accommodating space, and a mounting groove 55 is provided above the accommodating space. The self-locking structure 3 is movably provided on the mounting groove 55 , and the guide structure and the self-locking structure 3 are abutted against each other so that the self-locking structure 3 can rotate in the mounting groove 55 .

[0062] like Figure 6 As shown, the guide plate 4 and the first water inlet 51 and the first water outlet 52 in the accommodating space are sealedly connected, so that the first water inlet 51 and the second water inlet 41 are connected through the sealing ring 9, and the first water outlet 52 and the second water outlet 42 are connected through the sealing ring 9.

[0063] like Figure 7 and Figure 11 As shown, the self-locking structure 3 includes a locking plate 31 and a push plate 32, which are fixed together by a snap connection. Of course, it is understood that the locking plate 31 and the push plate 32 can also be installed using other structures, such as a fixed connection using screws 7 or a buckle and a slot. Only the snap connection is described here as a preferred embodiment.

[0064] As a preferred embodiment, a slot 311 is provided on the side wall of the locking plate 31, and a limiting boss 322 is provided on the side wall of the pushing plate 32. The limiting boss 322 cooperates with the slot 311 to enable the locking plate 31 and the pushing plate 32 to be clamped and fixed.

[0065] Furthermore, a locking portion 312 is provided on the locking plate 31 , and a guide portion 321 is provided on the pushing plate 32 . The guide structure and the locking portion 312 abut against each other, and the guide portion 321 guides the guide structure and the locking portion 312 to self-lock or unlock.

[0066] like Figure 9 and Figure 10 As shown, the locking plate 31 is provided with a plurality of locking portions 312, and a guide groove 3123 is provided between two adjacent locking portions 312. Of course, it is understood that the number of the locking portions 312 is not specifically limited herein, and can be provided as one, two, or more. The description is only made of a plurality of locking portions 312 as a preferred embodiment.

[0067] Furthermore, the locking portion 312 includes a first guide mounting surface 3121 and a second guide mounting surface 3122, with an included angle formed therebetween. The locking portion 312 includes an unlocking guide surface 3124, which is connected to a self-locking limit surface 3126. The self-locking limit surface 3126 is connected to the self-locking guide surface 3125, so that the guide structure slides from the self-locking guide surface 3125 to the self-locking limit surface 3126, thereby achieving self-locking of the guide structure.

[0068] As a preferred embodiment, the angle between the first guide mounting surface 3121 and the second guide mounting surface 3122 is an obtuse angle. Of course, it can be understood that the angle between the first guide mounting surface 3121 and the second guide mounting surface 3122 is set to be an acute angle or a right angle, and there is no specific limitation on the angle between the first guide mounting surface 3121 and the second guide mounting surface 3122.

[0069] like Figure 8 As shown, the push plate 32 is provided with multiple guide portions 321, which are sequentially connected. Of course, it is understood that the guide portion 321 can be provided as a single guide portion, and the end surface 11 of each guide portion 321 is provided with multiple first guide surfaces 323, with an angle set between two adjacent first guide surfaces 323, so that the guide structure cooperates with the locking portion 312 of the self-locking structure 3 through the guidance of the first guide surfaces 323.

[0070] like Figure 15 He Ru Figure 16As shown, the bottom of the filter element body 1 is provided with a protrusion 12, and the outer wall of the protrusion 12 is provided with a guide boss 13. The guide boss 13 includes a second guide surface 132, a third guide surface 133 and a limiting surface, and the limiting surface is connected to the second guide surface 132 and the third guide surface 133 in sequence.

[0071] like Figure 17 and Figure 18 As shown, an angle is set between the second guide surface 132 and the third guide surface 133, and the filter element body 1 is pressed so that the second guide surface 132 and the third guide surface 133 slide into the guide groove 3123 with the first guide mounting surface 3121 and the second guide mounting surface 3122, and the guide groove 3123 contacts the first guide surface 323. Under the action of external force, the self-locking structure 3 rotates to make the filter element body 1 and the push block 6 abut against each other. When the external force disappears, the filter element body 1 is subjected to the restoring force of the spring 8, the third guide surface 133 contacts the self-locking guide surface 3125, and the first limit surface contacts the self-locking limit surface 3126, thereby realizing self-locking of the filter element assembly and the base 5.

[0072] like Figure 19 As shown, when the filter element body 1 is pressed, the second guide surface 132 contacts the first guide surface 323, and the self-locking structure 3 rotates under the action of external force. When the external force disappears, the third guide surface 133 abuts against the unlocking guide surface 3124, so that the guide boss 13 slides into the guide groove 3123, thereby realizing the separation of the filter element body 1 and the base 5.

[0073] like Figure 12 and Figure 13 As shown, a limiting hole 22 is provided on the fixing plate 2, a guide column 54 is provided on the base 5, an elastic member is sleeved on the outer wall of the guide column 54, and a push block 6 is provided on the outer wall of the elastic member, which is pushed open to cooperate with the limiting hole 22 and press the push block 6 to move in the limiting hole 22.

[0074] like Figure 14 As shown, a fixing plate 2 is fixedly mounted on the base 5, and a limiting groove 21 is provided on the fixing plate 2. A protrusion 313 is provided on the self-locking structure 3. The protrusion 313 is accommodated in the limiting groove 21, so that the limiting groove 21 limits the self-locking structure 3. A limiting hole 22 is provided on the fixing plate 2, and a guide column 54 is provided on the base 5. An elastic member is sleeved on the outer wall of the guide column 54, and a push block 6 is provided on the outer wall of the elastic member. The push block 6 is pushed open to engage with the limiting hole 22, and is pressed to move the push block 6 within the limiting hole 22.

[0075] Furthermore, a protrusion 12 is provided on the bottom surface of the filter element body 1, and an end surface 11 is provided on the bottom surface of the filter element body 1. The bottom surface of the protrusion 12 is provided with a third water inlet 121 and a third water outlet 122. The third water inlet 121 is connected to the second water inlet 41 and the first water inlet 51, and the third water outlet 122 is connected to the second water outlet 42 and the first water outlet 52. The water inside the filter element body 1 circulates through the water inlet pipe and the water outlet pipe.

[0076] Furthermore, an elastic member is provided on the base 5. When the filter element body 1 is pressed, the filter element body 1 and the elastic member abut against each other. When the external force disappears, the filter element body 1 is subjected to the restoring force generated by the elastic member, causing the filter element body 1 to move in a direction away from the base 5. A limit hole 22 is provided on the fixing plate 2, and a guide column 54 is provided on the base 5. The outer wall of the guide column 54 is sleeved with an elastic member. The outer wall of the elastic member is provided with a push block 6. The push block 6 is pushed open to engage with the limit hole 22, and the push block 6 is pressed to move within the limit hole 22.

[0077] As a preferred embodiment, the elastic member is a spring 8, which is connected to the guide post 54 and the push block 6 via the spring 8, so that the spring 8 moves within the guide post 54 and the push block 6. The top surface of the push block 6 is provided with an abutment surface 61, and the end surface 11 of the filter element body 1 abuts against the abutment surface 61 to enable the push block 6 and the filter element body 1 to move relatively closer or farther away.

[0078] The specific installation process of a filter element device provided by the present invention is as follows: when the user installs the filter element, the filter element body 1 is subjected to the pressing force, and the end face 11 of the filter element body 1 contacts the abutment face 61 of the push block 6 to overcome the spring force (the elastic force provided by the elastic member), and the guide boss 13 of the protrusion 12 of the filter element slides into the guide groove 3123 through the second guide surface 132, the third guide surface 133 and the first guide mounting surface 3121 and the second guide mounting surface 3122 on the locking portion 312. Under the action of external force, the guide boss 13 of the protrusion 12 contacts the first guide surface 323 of the rotation guide portion 321 of the push plate 32 through the guide groove 3123, and the movable self-locking structure 3 rotates a certain angle under the action of the external force, and The end face 11 of the filter element body 1 contacts the abutting surface 61 of the push block 6, and overcomes the spring force under the action of external force. At the same time, if the external force disappears, the spring 8 force pushes the push block 6 to lift the filter element body 1. Under the action of the spring force, the third guide surface 133 of the filter element guide boss 13 contacts the self-locking guide surface 3125 of the locking portion 312 of the locking plate 31, and the third guide surface 133 of the filter element guide boss 13 slides along the self-locking guide surface 3125 of the locking portion 312 of the locking plate 31 until the guide limit surface 131 of the filter element guide boss 13 contacts the self-locking limit surface 3126 of the locking portion 312 of the locking plate 31. At this time, the end face 11 of the filter element overcomes a certain spring force through the end face 11 of the push block 6, thereby driving the filter element to form self-locking.

[0079] When the user needs to replace the filter element, the user only needs to press the filter element lightly. The second guide surface 132 of the filter element guide boss 13 contacts the first guide surface 323 of the rotating guide portion 321 of the push plate 32 under the action of external force, and the movable self-locking structure 3 is pushed to rotate a certain angle under the action of external force. At this time, if the external force disappears, the end surface 11 of the filter element body 1 is driven by the reaction force of the spring 8 to drive the third guide surface 133 of the filter element guide boss 13 to contact the unlocking guide surface 3124 of the locking portion 312 of the locking plate 31, so that the filter element guide boss 13 slides into the guide groove 3123 of the locking plate 31, the self-locking of the filter element disappears, and the filter element body 1 is pushed out under the action of the spring force, thereby removing the filter element body 1 from the water purifier. Through the above structure, the user only needs to press the filter element body 1 to assemble the filter element body 1, and the user can remove the filter element body 1 by pressing it again.

[0080] The present invention also provides a water purifier, comprising the filter element device as described above.

[0081] The filter element device provided by the present invention provides a self-locking structure 3 on the base 5 and a guide structure on the filter element body 1. The user presses the filter element body 1 to cooperate with the guide structure and the self-locking structure 3, thereby realizing self-locking and unlocking of the filter element. The operation is simple and quick, and the filter element can be quickly installed and disassembled, saving time and effort and being easy to operate.

[0082] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A filter element device, characterized in that: It includes a base and a filter element body. The base is provided with a rotatable self-locking structure. The filter element body is provided with a guide structure. When the filter element body is pressed and moved along the base direction, the guide structure and the self-locking structure abut against each other, so that the guide structure rotates relative to the base. When the external force disappears, the guide structure moves relative to the self-locking structure, thereby realizing the self-locking or unlocking of the filter element body relative to the base. A fixing plate is provided on the base, a limiting groove is provided on the fixing plate, a convex edge is provided on the self-locking structure, and the convex edge is accommodated in the limiting groove, so that the limiting groove limits the self-locking structure; A limiting hole is provided on the fixed plate, a guide column is provided on the base, an elastic member is sleeved on the outer wall of the guide column, and a push block is provided on the outer wall of the elastic member, which is pushed open to cooperate with the limiting hole and press the push block to move in the limiting hole; The self-locking structure includes a locking plate and a pushing plate, and the locking plate and the pushing plate are fixed by clamping; The locking plate is provided with a plurality of locking parts, and a guide groove is provided between two adjacent locking parts; The locking portion includes a first guide mounting surface and a second guide mounting surface, and an angle is set between the first guide mounting surface and the second guide mounting surface; The locking portion includes an unlocking guide surface, the unlocking guide surface is connected to a self-locking limit surface, and the self-locking limit surface and the self-locking guide surface are connected so that the guide structure slides to the self-locking limit surface through the self-locking guide surface, thereby realizing self-locking of the guide structure; A plurality of guide parts are arranged on the pushing plate, and the plurality of guide parts are connected and arranged in sequence.

2. The filter element device according to claim 1, characterized in that An elastic member is provided on the base. When the filter element body is pressed, the filter element body and the elastic member abut against each other. When the external force disappears, the filter element body is subjected to the restoring force generated by the elastic member to move the filter element body away from the base.

3. The filter element device according to claim 1, characterized in that The base is provided with a mounting groove, the self-locking structure is movably arranged on the mounting groove, and the guide structure and the self-locking structure are in contact with each other so that the self-locking structure can rotate in the mounting groove.

4. The filter element device according to claim 1, characterized in that A accommodating space is provided on the base, a guide plate is provided in the accommodating space, a first water inlet and a first water outlet are provided at the bottom of the accommodating space, a second water inlet and a second water outlet are provided on the guide plate, the first water inlet and the second water inlet are arranged opposite to each other, and the second water outlet and the second water outlet are arranged opposite to each other, so that the base forms a water inlet passage and a water outlet passage.

5. The filter element device according to claim 1, characterized in that A clamping groove is provided on the side wall of the locking plate, and a limiting boss is provided on the side wall of the pushing plate. The limiting boss and the clamping groove cooperate to clamp and fix the locking plate and the pushing plate.

6. The filter element device according to claim 4, characterized in that: A protrusion is provided at the bottom of the filter element body, and a guide boss is provided on the outer wall of the protrusion.

7. The filter element device according to claim 1, characterized in that: The guide boss includes a second guide surface, a third guide surface and a limiting surface, and the limiting surface is connected to the second guide surface and the third guide surface in sequence.

8. The filter element device according to claim 7, characterized in that: An angle is set between the second guide surface and the third guide surface. The filter element body is pressed so that the second guide surface and the third guide surface slide into the guide groove with the first guide mounting surface and the second guide mounting surface. The guide groove contacts the first guide surface. Under the action of external force, the self-locking structure rotates to make the filter element body and the push block abut against each other. When the external force disappears, the filter element body is subjected to the spring restoring force, the third guide surface contacts the self-locking guide surface, and the self-locking limit surface contacts the first limit surface, thereby realizing self-locking of the filter element assembly and the base; the filter element body is pressed, the second guide surface contacts the first guide surface, and the self-locking structure rotates under the action of external force. When the external force disappears, the third guide surface abuts against the unlocking guide surface, so that the guide boss slides into the guide groove, thereby realizing separation of the filter element body and the base.

9. A water purifier, characterized in that: The invention comprises a filter element device as claimed in any one of claims 1 to 8.

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