Filter element connecting assembly and water purifier

Abstract

The utility model relates to the technical field of water purification, and discloses a filter element connecting assembly and a water purifier, which comprise a filter element seat, a filter element assembly and a sealing plate, the filter element seat comprises a seat body and a waterway connector arranged at the top end of the seat body; a connecting groove allowing the filter element assembly to be detachably inserted is formed in the bottom end of the seat body, and the connecting groove longitudinally extends and is communicated with the water path connector; a plurality of observation holes penetrating through the seat body are formed in the inner wall of the connecting groove; the sealing plate is detachably connected to the outer wall of the seat body and used for covering and sealing the observation hole. According to the utility model, the detachable sealing plate is arranged, and the observation hole is covered and sealed by the sealing plate, so that the attractiveness of the exterior of the connecting seat is ensured, dust and impurities can be effectively prevented from invading the interior of the connecting groove through the observation hole, and the filter element assembly is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification devices, in particular to a filter element connecting component and a water purifier. Background Art

[0002] With the improvement of modern people's quality of life and the emphasis on health, people's requirements for the purity and cleanliness of drinking water are increasing. As a device that purifies and filters water through physical adsorption and filtration, water purifiers are gradually entering more and more households.

[0003] Most of the existing water purifiers on the market use a replaceable filter element design, that is, a connection seat is provided on the water purifier, and the filter element of the water purifier is detachably connected to the connection seat by means of snap connection, screw connection, etc. However, the use of a replaceable filter element design also increases the possibility of damage and failure of the water purifier to a certain extent. Therefore, in order to facilitate later maintenance, some water purifiers with replaceable filter elements are provided with a number of through holes on the outer wall of the connection seat, through which maintenance personnel can observe the internal conditions of the connection seat, thereby improving maintenance efficiency. However, the through holes provided on the outer wall of the connection seat not only reduce the overall aesthetics of the exterior of the connection seat, but also easily cause external dust and impurities to invade the interior of the connection seat through the through holes. After the dust and impurities enter the connection seat, they will contaminate the external joint of the filter element during the process of replacing the filter element, thereby affecting the water quality of the water purifier. Utility Model Content

[0004] The utility model aims to provide a filter element connecting component and a water purifier to solve the above technical problems.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] The utility model provides a filter element connection assembly, comprising: a filter element seat, a filter element assembly and a sealing plate; the filter element seat comprises a seat body and a water channel connector arranged at the top of the seat body; the bottom end of the seat body is provided with a connecting groove for the filter element assembly to be detachably plugged in, the connecting groove extends longitudinally and is connected to the water channel connector; the inner wall of the connecting groove is provided with a plurality of observation holes that pass through the seat body; the sealing plate is detachably connected to the outer wall of the seat body, and is used to cover and seal the observation holes.

[0007] As an optional solution of the filter element connecting assembly provided by the utility model, the sealing plate extends circumferentially to form an annular structure, and the inner annular surface of the sealing plate can be adapted to match and abut the outer wall of the seat body, and the top of the outer wall surface of the seat body is provided with an annular boss for the top end of the sealing plate to abut and position; the filter element connecting assembly also has a limiting surface for the bottom end of the sealing plate to abut and position.

[0008] As an optional solution of the filter element connection assembly provided by the utility model, the filter element assembly includes a core body, the top of the core body is provided with a plug-in portion that can be adapted to be plugged into the connecting groove, the bottom outer wall of the plug-in portion is provided with a shoulder, and the limiting surface is formed on the shoulder.

[0009] As an optional solution of the filter element connecting assembly provided by the utility model, a limiting protrusion is provided on the inner ring surface of the sealing plate, and the bottom end of the outer wall of the seat body is folded outward to form a flange. The limiting protrusion can undergo radial elastic deformation relative to the sealing plate and axially flip over the flange, and the limiting surface is formed at the top end of the flange for the bottom end of the limiting protrusion to abut and position.

[0010] As an optional solution of the filter element connecting assembly provided by the utility model, a plurality of positioning grooves are formed on the outer wall of the seat body, and the inner ring surface of the sealing plate is provided with positioning ribs that can axially engage with the positioning grooves, and the positioning ribs circumferentially limit the sealing plate by engaging with the positioning grooves.

[0011] As an optional solution of the filter element connecting assembly provided by the utility model, the positioning groove is arranged on the flange, and the limiting protrusion is integrally formed on the positioning rib.

[0012] As an optional solution of the filter element connecting assembly provided by the utility model, the limiting surface is an inclined surface, and the top and bottom ends of the limiting protrusion are respectively provided with guide chamfers.

[0013] As an optional solution of the filter element connection assembly provided by the utility model, one end of the sealing plate is provided with a protrusion that can be adapted to engage with the observation hole, and the sealing plate is engaged with the observation hole through the protrusion and can be detachably connected to the outer wall of the base body.

[0014] A water purifier comprises the filter element connecting assembly as described above.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A detachable sealing plate is provided on the seat body, and the sealing plate covers and seals the observation hole, thereby ensuring the aesthetic appearance of the exterior of the connection seat and effectively preventing dust and impurities from invading the interior of the connection slot through the observation hole, thereby avoiding the risk of contamination of the filter element assembly;

[0017] 2. The sealing plate is an annular structure, which is sleeved on the outer wall of the seat body. It can not only seal the observation hole, but also be integrated with the seat body to reinforce the seat body circumferentially, ensuring that the seat body has good overall structural strength, so that the area of ​​the observation hole can be as large as possible, which is conducive to later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0019] Figure 1 is an exploded view of the filter element connection assembly provided in this embodiment;

[0020] Figure 2 is a schematic structural diagram of a filter element assembly in a filter element connection assembly provided in this embodiment;

[0021] Figure 3 is a schematic structural diagram of a sealing plate in a filter element connection assembly provided in this embodiment;

[0022] Figure 4 The structure of the filter element seat in the filter element connection assembly provided in this embodiment is shown in FIG. Figure 1 ;

[0023] Figure 5 The structure of the filter element seat in the filter element connection assembly provided in this embodiment is shown in FIG. Figure 2 .

[0024] In the figure:

[0025] 1. Filter element seat; 11. Seat body; 111. Observation hole; 112. Annular boss; 113. Flanging; 114. Positioning groove; 12. Waterway connector; 121. Water inlet plug connector; 122. Water outlet plug connector; 13. Connecting groove; 131. Screw-on groove; 132. Guide slope; 2. Filter element assembly; 21. Water inlet; 22. Water outlet; 23. Core body; 24. Connecting part; 25. Screw-on platform; 3. Sealing plate; 31. Limiting protrusion; 32. Guide chamfer; 33. Positioning rib; 4. Limiting surface. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1:

[0030] refer to Figure 1 to Figure 5 A filter element connection assembly includes a filter element seat 1 and a filter element assembly 2. The filter element seat 1 includes a seat body 11. A water channel connector 12 is provided at the top of the seat body 11. A connecting groove 13 is provided at the bottom of the seat body 11. The connecting groove 13 extends longitudinally and communicates with the water channel connector 12. The filter element assembly 2 is connected to the water channel connector 12 through a detachable plug-in connecting groove 13.

[0031] The water channel connector 12 includes at least one group of water inlet plug connectors 121 and at least one group of water outlet plug connectors 122, and the corresponding filter element assembly 2 also includes at least one group of water inlet ports 21 and at least one group of water outlet ports 22. When working, the filter element assembly 2 can be detachably plugged into the connecting groove 13 at the bottom end of the seat body 11, and the water inlet plug connector 121 is externally connected to the water outlet end of the water supply device or the front-end purification device, and is internally connected to the water inlet 21 of the filter element assembly 2. The water outlet plug connector 122 of the water channel connector 12 is internally connected to the water outlet 22 of the filter element assembly 2, and is externally connected to the drainage device or the rear-end purification device. The purified water provided by the external water supply device or the front-end purification device enters the filter element assembly 2 through the water inlet plug connector 121 and the water inlet ports 21 in turn, and after being filtered by the filter element assembly 2, it is sequentially transported to the drainage device or the rear-end purification device through the water outlet ports 22 and the water outlet plug connector 122.

[0032] It should be noted that, in the drawings provided in the present application, the filter element assembly 2 is a composite filter element, and correspondingly, the water connector 12 has two sets of water inlet plug connectors 121 and two sets of water outlet plug connectors 122. Although the working principle and connection method are different from the above, they should be known to those skilled in the art and will not be repeated here.

[0033] Specifically, the filter element assembly 2 includes a core body 23, and a plug-in portion 24 that can be adapted to be plugged into the connecting groove 13 is arranged at one end of the core body 23. The top of the plug-in portion 24 is provided with the above-mentioned water inlet 21 and water outlet 22. The outer wall surface of the plug-in portion 24 is convexly provided with a screw-in platform 25, and correspondingly, the inner wall surface of the connecting groove 13 is provided with a screw-in groove 131 for the screw-in platform 25 to be screwed and engaged. The screw-in platform 25 and the screw-in groove 131 are provided so that the filter element assembly 2 and the filter element seat 1 can be plugged in by screwing, which is convenient for loading and unloading. In addition, the inner wall of the screw-in groove 131 and the screw-in platform 25 are provided with a guide inclined surface 132 for screwing and positioning the plug-in portion 24 and the connecting groove 13, so that the plug-in portion 24 can be gradually tightened during the assembly process. In addition, the inner wall of the connection groove 13 is provided with a plurality of observation holes 111, and the observation holes 111 penetrate the outer wall surface of the seat body 11 outwardly. By providing the observation holes 111, maintenance personnel can check the internal conditions of the connection groove 13 through the observation holes 111 without removing the filter element seat 1 as a whole, thereby greatly improving the convenience and efficiency of maintenance. However, the provision of the observation holes 111 not only reduces the overall aesthetics of the exterior of the filter element seat 1, but also easily causes external dust and impurities to invade the interior of the connection groove 13 through the observation holes 111. After entering the connection groove 13, the dust and impurities will contaminate the plug-in portion 24 of the filter element assembly 2 when the filter element assembly 2 is replaced, that is, enter the core body 23 through the water outlet 22, thereby affecting the water quality of the water outlet of the filter element assembly 2.

[0034] In this regard, the improvement of the present application is that the filter element connection assembly also includes a sealing plate 3, which is detachably connected to the outer wall of the seat body 11 and is used to cover and seal the observation hole 111. Through the above technical solution, a detachable sealing plate 3 is provided on the seat body 11, and the sealing plate 3 covers and seals the observation hole 111, which not only ensures the aesthetics of the exterior of the connection seat, but also effectively prevents dust and impurities from invading the interior of the connection groove 13 through the observation hole 111, thereby avoiding the risk of contamination of the filter element assembly 2.

[0035] Of course, the specific implementation structure of "the sealing plate 3 is detachably connected to the outer wall of the seat body 11 to cover and seal the observation hole 111" has various structures. For example, a protrusion that can be adapted to engage with the observation hole 111 can be directly provided at one end of the sealing plate 3, and the sealing plate 3 is detachably connected to the outer wall of the seat body 11 by engaging the observation hole 111 with the protrusion, which is simple and convenient, can be quickly disassembled, and has low production cost.

[0036] However, for the sake of structural strength, this embodiment provides another implementation structure in which "the sealing plate 3 is detachably connected to the outer wall of the seat body 11 to cover and seal the observation hole 111", which is as follows:

[0037] The sealing plate 3 extends circumferentially to form an annular structure, and the inner annular surface of the sealing plate 3 can be adapted to abut against the outer wall surface of the seat body 11 to cover and seal the observation hole 111 . Since the seat body 11 of the filter element seat 1 serves as the connection base point between the filter element assembly 2 and the water purifier, it not only needs to connect and support the filter element assembly 2 to ensure the connection strength with the filter element assembly 2, but also needs to withstand the water pressure impact when the water purifier is working. Therefore, the seat body 11 has certain requirements for its own structural strength. Setting an observation hole 111 on the seat body 11 will reversely reduce the structural strength of the seat body 11. Therefore, in order to ensure the structural strength of the seat body 11, the area of ​​the observation hole 111 set in the existing filter element seat 1 is relatively limited. By adopting the above technical solution, a sealing plate 3 with an annular structure is set, which is sleeved and abutted on the outer wall surface of the seat body 11, which can not only seal the observation hole 111, but also be integrated with the seat body 11, and the seat body 11 is circumferentially reinforced to ensure that the seat body 11 has good overall structural strength, so that the area of ​​the observation hole 111 can be as large as possible, which is conducive to later maintenance.

[0038] In order to enhance the connection stability between the sealing plate 3 and the outer wall of the seat body 11, other corresponding structures are also provided in this embodiment: an annular boss 112 for abutting and positioning the top end of the sealing plate 3 is provided at the top of the outer wall surface of the seat body 11, and the filter element connecting assembly also has a limiting surface 4 for abutting and positioning the bottom end of the sealing plate 3. When working, the annular boss 112 and the limiting surface 4 abut the sealing plate 3 in both directions up and down, so that the sealing plate 3 can be stably and reliably positioned on the seat body 11, preventing the sealing plate 3 from falling off due to the mechanical vibration generated by the operation of the water purifier.

[0039] This embodiment provides two implementation structures of the limiting surface 4:

[0040] refer to Figure 2 The first implementation structure of the limiting surface 4 is: a shoulder is formed on the outer wall of the bottom end of the plug-in portion 24, and the limiting surface 4 is formed on the shoulder. When working, the sealing plate 3 of the annular structure can be first sleeved on the outer wall of the seat body 11, and the top of the sealing plate 3 abuts the annular boss 112 to preliminarily fix the position of the sealing plate 3. Subsequently, the plug-in portion 24 of the filter element assembly 2 is rotated and inserted into the connecting groove 13 at the bottom of the seat body 11. During the plug-in process, the shoulder will gradually approach the sealing plate 3, and after the filter element assembly 2 is completely inserted into the connecting groove 13, it will finally abut the bottom end of the supporting sealing plate 3 to longitudinally limit the sealing plate 3, so that the sealing plate 3 can be firmly supported between the annular boss 112 and the shoulder to form a stable sealing structure.

[0041] This design allows the filter element assembly 2 to partially assume the responsibility of the longitudinal limiting sealing plate 3 without the need for additional complex connection structures. It has a simple structure and is easy to operate. However, the implementation structure of the above-mentioned limiting surface 4 also has certain defects. Since the limiting surface 4 is formed on the filter element assembly 2, the sealing plate 3 cannot be separated from the filter element assembly 2 and fixedly connected to the filter element seat 1 alone. During the insertion process of the filter element assembly 2, it causes certain interference to the installation of the filter element assembly 2.

[0042] In this regard, refer to Figure 3 , Figure 4 and Figure 5 , this embodiment provides a second implementation structure of the limiting surface 4: that is, the limiting surface 4 is integrally formed at the bottom of the outer wall of the seat body 11. The advantage of this is that since the limiting surface 4 is integrally formed at the seat body 11, when in use, the sealing plate 3 can be directly fixedly connected to the seat body 11 without interfering with the installation of the filter element assembly 2 during the installation of the filter element assembly 2. Moreover, since the limiting surface 4 is integrally formed at the seat body 11 and becomes a part of the seat body 11, the structural stability of the seat body 11 can be enhanced in disguised form, and maintenance is convenient, and it no longer depends on the filter element assembly 2. When the filter element assembly 2 needs to be repaired or replaced, it is only necessary to pull the filter element assembly 2 out of the connecting groove 13 without removing the sealing plate 3, thereby reducing the difficulty and cost of maintenance.

[0043] Specifically, refer to Figure 3 , Figure 4 and Figure 5 A limiting protrusion 31 is provided on the inner ring surface of the sealing plate 3, and the bottom end of the outer wall of the seat body 11 is folded outward to form a flange 113 for the limiting protrusion 31 to axially flip over, and a limiting surface 4 is formed at the top end of the flange 113 for the bottom end of the limiting protrusion 31 to abut and position. During installation, the sealing plate 3 can be first inserted into the seat body 11 from bottom to top. Since there is no limiting protrusion 31 on the top of the inner ring of the sealing plate 3, it can directly pass over the flap and move toward the top of the seat body 11. As the sealing plate 3 moves upward, the limiting protrusion 31 at the bottom of the inner ring of the sealing plate 3 will axially contact the edge of the flange 113 and generate force contact with the flange 113, thereby forcing the limiting protrusion 31 to undergo radial elastic deformation relative to the sealing plate 3, stretching the limiting protrusion 31 so that the limiting protrusion 31 can finally axially flip over the flange 113. After the limiting protrusion 31 completely passes through the flange 113, the limiting protrusion 31 will restore its size, and the bottom end of the limiting protrusion 31 will abut against the limiting surface 4 at the top of the flange 113, thereby supporting and limiting the sealing plate 3. During disassembly, the sealing plate 3 only needs to be moved in the reverse direction so that the limiting protrusion 31 can again turn over the flange 113 to separate the sealing plate 3 from the seat body 11. In addition, the seat body 11 is folded to form the flange 113, which may enhance its own structural strength.

[0044] To facilitate the disassembly and installation of the sealing plate 3, in this embodiment, the limiting surface 4 is an inclined surface, and the top and bottom ends of the limiting protrusion 31 are respectively provided with guide chamfers 32. Through the above scheme, when disassembling and installing the sealing plate 3, the inclined surface guidance and chamfer transition can be used to reduce the impact and resistance generated during the installation and disassembly process, making the disassembly and installation smoother and easier, and can reduce the contact wear between parts and extend the service life.

[0045] Furthermore, in order to prevent the sealing plate 3 and the seat body 11 from circumferentially rotating, a plurality of positioning grooves 114 are formed on the outer wall of the seat body 11, and the inner ring surface of the sealing plate 3 is provided with positioning ribs 33 that can axially engage with the positioning grooves 114. The positioning ribs 33 circumferentially limit the sealing plate 3 by engaging with the positioning grooves 114, thereby ensuring that the sealing plate 3 will not damage the sealing contact surface with the seat body 11 due to movement during operation, thereby improving the overall sealing performance.

[0046] Furthermore, the positioning groove 114 is provided on the flange 113, and the limiting protrusion 31 is integrally formed on the positioning rib 33. Through the above technical solution, the limiting protrusion 31 is integrally formed on the positioning rib 33, which can reduce the volume of the limiting protrusion 31, and reduce the contact area between the limiting protrusion 31 and the flange 113, and increase the abutment pressure when the limiting protrusion 31 and the flange 113 are in circumferential contact, so that the limiting protrusion 31 can more easily undergo radial elastic deformation, making it easier and more labor-saving for the limiting protrusion 31 to climb over the flange 113.

[0047] Embodiment 2:

[0048] A water purifier includes the filter element connecting assembly provided in the first embodiment.

[0049] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A filter element connection assembly, characterized in that: include: A filter element seat (1), a filter element assembly (2) and a sealing plate (3); The filter element seat (1) comprises a seat body (11) and a water channel connector (12) arranged at the top of the seat body (11); The bottom end of the seat body (11) is provided with a connection groove (13) for the filter element assembly (2) to be detachably plugged in, and the connection groove (13) extends longitudinally and is in communication with the water channel connector (12); The inner wall of the connecting groove (13) is provided with a plurality of observation holes (111) penetrating the seat body (11); The sealing plate (3) is detachably connected to the outer wall of the base body (11) and is used to cover and seal the observation hole (111).

2. The filter element connection assembly according to claim 1, characterized in that: The sealing plate (3) extends circumferentially to form an annular structure, and the inner annular surface of the sealing plate (3) can be adapted to fit and abut against the outer wall of the seat body (11), and the top of the outer wall surface of the seat body (11) is provided with an annular boss (112) for the top end of the sealing plate (3) to abut and position; the filter element connecting assembly also has a limiting surface (4) for the bottom end of the sealing plate (3) to abut and position.

3. The filter element connection assembly according to claim 2, characterized in that: The filter element assembly (2) comprises a core body (23), the top end of the core body (23) is provided with an inserting portion (24) which can be adapted to be inserted into the connecting groove (13), the bottom outer wall of the inserting portion (24) is provided with a stop shoulder, and the limiting surface (4) is formed on the stop shoulder.

4. The filter element connection assembly according to claim 2, characterized in that: The limiting surface (4) is formed at the bottom of the outer wall of the seat body (11).

5. The filter element connection assembly according to claim 3, characterized in that: The inner ring surface of the sealing plate (3) is provided with a limiting protrusion (31), and the bottom end of the outer wall of the seat body (11) is folded outward to form a flange (113). The limiting protrusion (31) can undergo radial elastic deformation relative to the sealing plate (3) and axially flip over the flange (113). The limiting surface (4) is formed at the top end of the flange (113) for abutting and positioning the bottom end of the limiting protrusion (31).

6. The filter element connection assembly according to claim 5, characterized in that: The outer wall of the seat body (11) is formed with a plurality of positioning grooves (114), and the inner ring surface of the sealing plate (3) is provided with positioning ribs (33) that can axially engage with the positioning grooves (114). The positioning ribs (33) circumferentially limit the sealing plate (3) by engaging with the positioning grooves (114).

7. The filter element connection assembly according to claim 6, characterized in that: The positioning groove (114) is arranged on the flange (113), and the limiting protrusion (31) is integrally formed on the positioning rib (33).

8. The filter element connection assembly according to claim 5, characterized in that: The limiting surface (4) is an inclined surface, and the top and bottom ends of the limiting protrusion (31) are respectively provided with guide chamfers (32).

9. The filter element connection assembly according to claim 1, characterized in that: One end of the sealing plate (3) is provided with a protrusion that can be adapted to be engaged with the observation hole (111); the sealing plate (3) is engaged with the observation hole (111) via the protrusion and is thereby detachably connected to the outer wall of the seat body (11).

10. A water purifier, characterized in that: It comprises a filter element connecting assembly as described in any one of claims 1 to 9.

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