Fixing assembly of filter, filter assembly and water purifier

Abstract

The utility model discloses a fixing assembly of a filter, a filter assembly and a water purifier. The fixing assembly comprises a body and a hoop, a containing cavity is formed in the body, a first radial flange is arranged at one end of the body, the filter extends into the containing cavity, and a second radial flange is arranged at one end of the filter; the hoop is arranged around the first radial flange and the second radial flange, a groove is formed in the inner surface of the hoop, and the first radial flange and the second radial flange are arranged in the groove; the hoop is fastened through a fastener, so that the first radial flange and the second radial flange are locked in the groove; the filter assembly comprises the fixing assembly. The water purifier comprises the filter assembly. According to the filter fixing assembly disclosed by the utility model, through the matching design of the hoop and the flange, the filter can be well fixed and conveniently disassembled in a labor-saving manner, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to a filter fixing component, a filter assembly, and a water purifier. Background Technology

[0002] In the current market for household and commercial water purifiers, with increasing health awareness and the growing severity of water pollution, the demand for efficient and convenient water purification equipment is increasing daily. One of the core components of a water purifier is the filter.

[0003] Most water purifier filter cartridges or side-mounted fasteners on the market are fixed at the connection between the filter cartridge and the water circuit board. This design facilitates filter cartridge replacement, assembly, and fixation, ensuring the internal seal of the water purifier while allowing users to easily replace and maintain the filter cartridge. The mainstream fixing methods are threaded connections or snap-fit ​​fasteners. However, these methods share common limitations in practical application. Threaded connections often require multiple turns when replacing the filter cartridge, and scale or impurities can cause the screws to tighten excessively. For larger filter cartridges, significant torque is needed to remove them for replacement. Snap-fit ​​designs also require considerable external force during assembly and disassembly to maintain a seal. Furthermore, material aging and scale buildup during use can cause the snaps to loosen or loosen, further increasing the difficulty of disassembly. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art, which is that the filter bottle body is difficult to disassemble and requires a large external force, and to provide a filter fixing component, filter assembly and water purifier that are easy to fix and disassemble.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A filter fixing assembly includes a body and a clamp, the body having a receiving cavity, a first radial flange at one end of the body for inserting a filter into the receiving cavity, and a second radial flange at one end of the filter.

[0007] The clamp is arranged around the first radial flange and the second radial flange, and the inner surface of the clamp is provided with a groove, in which the first radial flange and the second radial flange are disposed; the clamp is fastened by fasteners so that the first radial flange and the second radial flange are locked in the groove.

[0008] In this design, the receiving cavity of the fixing component body is used to house the filter, allowing the filter to extend into the receiving cavity for fixing, assembly, and subsequent use. When replacing or installing the filter, after inserting the filter into the receiving cavity, the first radial flange and the second radial flange overlap. The inner surface groove of the clamp accommodates the first and second radial flanges and determines the relative position of the fixing component body and the filter. After placement, the clamp contacts the first and second radial flanges and is secured by the fasteners, thus locking the filter and the fixing component together and fixing the filter. During disassembly, after releasing the fasteners, the clamp can be easily removed and the filter pulled out of the receiving cavity without applying significant external force.

[0009] Preferably, the clamp includes a first part and a second part, both of which include an arcuate portion and an extension portion.

[0010] The arc-shaped portion surrounds the first radial flange and the second radial flange, and the groove is disposed on the inner surface of the arc-shaped portion;

[0011] Both ends of the arc-shaped portion are provided with the extension portion, which extends along the radial direction of the arc-shaped portion; the extension portion of the first portion and the extension portion of the second portion are fastened by fasteners.

[0012] In this design, the extension of the clamp extends to the first radial flange and the second radial flange, facilitating the positioning of the fastener.

[0013] Preferably, the fastener includes a bolt and a nut; one of the extensions of the first portion and the second portion is provided with a receiving groove, and the other is provided with a protrusion;

[0014] The receiving groove is recessed on the outer side of the corresponding extension and has a polygonal structure, and is used to receive the nut; the protrusion is raised on the outer side of the corresponding extension and has a countersunk hole inside, which is used to receive the end of the bolt.

[0015] In this design, the polygonal receiving groove recessed on the outer surface of the extension is provided to facilitate the reception of the nut while simultaneously limiting its position to prevent it from rotating along with the bolt during tightening. The protrusion is designed to accommodate the end of the bolt through an internal countersunk hole.

[0016] Preferably, the body includes a fixed frame and a fixed support, the interior of the fixed frame forms the receiving cavity, one end of the fixed frame is provided with the first radial flange, and the other end of the fixed frame is provided with the third radial flange;

[0017] The fixing bracket has a through hole, and the edge of the fixing bracket forms a fourth radial flange. The diameter of the through hole is smaller than the radial dimension of the filter. The third radial flange and the fourth radial flange are connected by fasteners.

[0018] In this design, the first radial flange connects to a groove inside the clamp, and together with the second radial flange, locks and secures the filter. The third radial flange fits into the fourth radial flange and is secured with fasteners, thereby connecting the fixed frame and the fixed bracket.

[0019] Preferably, the fixed bracket has a first boss on its surface away from the fixed frame, the through hole passes through the first boss, and the side wall of the first boss has a notch.

[0020] In this design, the sidewall of the first boss is provided with a notch to facilitate the insertion of tools for later disassembly of the filter. The first boss also provides further protection for the filter, preventing damage.

[0021] Preferably, a reinforcing rib is provided between the third radial flange and the outer wall of the fixed frame.

[0022] In this design, the reinforcing ribs are used to improve the structural strength and rigidity of the body, prevent deformation, optimize the structural design, and help extend its service life.

[0023] Preferably, the surface of the third radial flange is provided with screw fixing posts.

[0024] In this solution, the screw fixing post is used to accommodate the fasteners used to connect the third radial flange and the fourth radial flange, and to protect and fix the fasteners.

[0025] A filter assembly includes a filter and a fixing assembly as described above, the filter being mounted within the fixing assembly;

[0026] The filter includes a filter bottle body and a filter bottle cap. One end of the filter bottle body is closed and has a second radial flange. The filter bottle body is hollow inside and is used to hold a filter element. The other end of the filter bottle body is open and connected to the filter bottle cap.

[0027] In this design, the filter bottle body is placed within the receiving cavity. One end is closed and has a second radial flange, which, together with the first radial flange, cooperates with the clamp to secure the filter. The other end is open and connects to the filter bottle cap, enabling the filter to perform its filtering function. The fastener can be a self-tapping screw. Furthermore, the self-tapping screw can be made of stainless steel to increase corrosion resistance.

[0028] Preferably, the outer surface of the closed end of the filter bottle is recessed and provided with a second protrusion, the second protrusion having a T-shaped longitudinal section in the filter; a decorative plug is provided inside the second protrusion.

[0029] In this design, the second protrusion, with its T-shaped design, conforms to ergonomics, making it easy to grip and thus facilitating the handling and application of force to the filter bottle. The decorative plug conceals the hollow internal structure of the filter, preventing its visibility and enhancing its aesthetic appeal.

[0030] Preferably, the inner surface of the closed end of the filter bottle body and the surface of the filter bottle cap facing the interior of the filter bottle body are both provided with limiting protrusions.

[0031] The filter cap is also provided with a through-hole. The through-hole includes an inlet, an outlet, and a wastewater outlet, the specific configuration of which is defined according to the requirements of the filter element design.

[0032] In this solution, the limiting boss cooperates with the filter bottle body to insert the filter bottle body into the limiting boss provided on the filter bottle cover, thereby limiting the filter element inside the bottle body.

[0033] Furthermore, the present invention adopts the following technical solution:

[0034] A water purifier comprising a filter assembly as described above.

[0035] The significant advantages of this invention are as follows: The receiving cavity of the fixing component body is used to place the filter, allowing the filter to extend into the receiving cavity for fixing, assembly, and subsequent use. When replacing or installing the filter, after the filter is inserted into the receiving cavity, the first radial flange and the second radial flange overlap. The inner surface groove of the clamp is used to accommodate the first and second radial flanges and to determine the relative position of the fixing component body and the filter. After placement, the clamp is in close contact with the first and second radial flanges and is secured by the fasteners, thus locking the filter and the fixing component together and fixing the filter. During disassembly, after releasing the fasteners, the clamp can be easily removed and the filter can be pulled out of the receiving cavity without applying significant external force. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a filter fixing assembly provided by the present invention, wherein the filter is fixed inside the fixing assembly;

[0037] Figure 2 for Figure 1 A cross-sectional view of the fixed components of the filter;

[0038] Figure 3 A schematic diagram of a clamp structure provided by this utility model;

[0039] Figure 4 for Figure 3 A schematic diagram of part of the structure of the central clamp.

[0040] Explanation of reference numerals in the attached figures:

[0041] Body 100

[0042] Fixed frame 110

[0043] Fixed bracket 120

[0044] Through hole 121

[0045] Filter 200

[0046] Filter bottle body 210

[0047] Second protrusion 211

[0048] Decorative plug 212

[0049] Limiting boss 213

[0050] Shuikou 214

[0051] Filter cap 220

[0052] Hoop 1

[0053] Groove 11

[0054] Arc-shaped part 12

[0055] Extension 13

[0056] Reception cavity 2

[0057] First radial flange 111

[0058] Second radial flange 222

[0059] Third radial flange 333

[0060] Reinforcing rib 334

[0061] Screw fixing post 335

[0062] Fourth radial flange 444

[0063] Fastener 3

[0064] 300 on the outer side

[0065] Receiving tank 311

[0066] Protrusion 312

[0067] First protrusion 122

[0068] Gap 123 Detailed Implementation

[0069] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0070] This embodiment provides a fixing component for a filter 200, such as... Figure 1 and Figure 2 As shown, the fixing assembly includes a body 100 and a clamp 1. The body 100 has a receiving cavity 2. One end of the body 100 is provided with a first radial flange 111. The receiving cavity 2 is used for the filter 200 to extend into. One end of the filter 200 is provided with a second radial flange 222.

[0071] The clamp 1 is arranged around the first radial flange 111 and the second radial flange 222. The inner surface of the clamp 1 is provided with a groove 11, and the first radial flange 111 and the second radial flange 222 are disposed in the groove 11. The clamp 1 is fastened by the fastener 3 so that the first radial flange 111 and the second radial flange 222 are locked in the groove 11.

[0072] The receiving cavity 2 of the fixing component body 100 is used to place the filter 200, allowing the filter 200 to extend into the receiving cavity 2 for fixing, assembly, and subsequent use. When replacing or installing the filter 200, after the filter 200 is extended into the receiving cavity 2, the first radial flange 111 and the second radial flange 222 are stacked. The inner surface groove 11 of the clamp 1 is used to accommodate the first radial flange 111 and the second radial flange 222, and to determine the relative position of the fixing component body 100 and the filter 200. After placement, the clamp 1 is in close contact with the first radial flange 111 and the second radial flange 222, and is fastened by the fastener 3 to fix the clamp 1, thereby locking the filter 200 and the fixing component, thus fixing the filter 200. During disassembly, after releasing the fastener 3, the clamp 1 can be easily removed and the filter 200 can be pulled out of the receiving cavity 2 without applying a large external force.

[0073] like Figure 2 and Figure 3As shown, the clamp 1 includes a first part and a second part. Both the first part and the second part include an arc-shaped portion 12 and an extension portion 13. The arc-shaped portion 12 surrounds a first radial flange 111 and a second radial flange 222. A groove 11 is provided on the inner surface of the arc-shaped portion 12. Extension portions 13 are provided at both ends of the arc-shaped portion 12, and the extension portions 13 extend along the radial direction of the arc-shaped portion 12. The extension portions 13 of the first part and the second part are fastened together by fasteners 3. The extension portions 13 of the clamp 1 extend to the first radial flange 111 and the second radial flange 222, which facilitates the positioning of the fasteners 3.

[0074] like Figure 1 and Figure 2 As shown, the arc-shaped portion is semi-circular, and the extension portion extends outward from the end of the arc-shaped portion towards the outside of the clamp. The fastener 3 on the extension portion 13 is preferably a bolt and nut assembly, with the bolt passing through the two opposing extension portions 13. The groove 11 is located inside the clamp 1 and is annular. After accommodating the first radial flange 111 and the second radial flange 222, it is fastened by the fastener 3, pressing the second radial flange 222 and the first radial flange 111 together, thereby allowing the filter 200 to extend into the receiving cavity 2, that is, to be fixed in a position relative to the body 100.

[0075] In other embodiments, the body 100, filter 200, and clamp 1 cooperate to allow the filter 200 to be inserted into the receiving cavity 2 for installation and secured by the clamp 1 and fasteners 3. These components can be other cylindrical structural shapes that fulfill the functions, including rectangular cylinders, elliptical cylinders, semi-circular cylinders, and triangular cylinders. Correspondingly, the clamp 1 can be a square ring structure, elliptical ring structure, semi-circular ring structure, or triangular ring structure. The specific design is defined according to the requirements of the filter element design.

[0076] like Figure 1 , Figure 3 and Figure 4 As shown, the fastener 3 includes a bolt and a nut; one of the extensions 13 of the first part and the second part is provided with a receiving groove 311, and the other is provided with a protrusion 312; the receiving groove 311 is recessed on the outer surface 300 of the corresponding extension 13, and the receiving groove 311 has a polygonal structure and is used to receive the nut; the protrusion 312 protrudes on the outer surface 300 of the corresponding extension 13, and a countersunk hole is provided in the protrusion 312 for receiving the end of the bolt. By providing the polygonal receiving groove 311, the nut is received and limited at the same time, preventing the nut from rotating along with the bolt when it is tightened. The end of the bolt is received by providing the countersunk hole in the protrusion 312.

[0077] like Figure 3 and Figure 4As shown, the first part and the two extensions 13 of the clamp 1 are arranged opposite to each other, and the surface of one extension 13 that is opposite to the other extension 13 is the outer side 300.

[0078] like Figure 2 As shown, the main body 100 includes a fixed frame 110 and a fixed bracket 120. The fixed frame 110 has a through cavity 2. One end of the fixed frame 110 has a first radial flange 111, and the other end has a third radial flange 333. The fixed bracket 120 has a through hole 121, and the edge of the fixed bracket 120 forms a fourth radial flange 444. The diameter of the through hole 121 is smaller than the radial dimension of the filter 200. The third radial flange 333 and the fourth radial flange 444 are connected by fasteners. The first radial flange 111 is connected to the groove 11 inside the clamp 1, and cooperates with the second radial flange 222 to lock and fix the filter 200. The third radial flange 333 is fastened by fasteners to fit against the fourth radial flange 444, thereby connecting the fixed frame 110 and the fixed bracket 120.

[0079] Both ends of the fixed frame 110 have radial flanges. In this embodiment, as part of the body 100, it has a cylindrical structure to form a receiving cavity 2 to accommodate the filter 200. The other end of the fixed frame 110 has a third radial flange 333, which is attached to the fourth radial flange 444 on the fixed bracket 120 and connected by fasteners. The fixed bracket 120 is a plate-shaped structure with a through hole 121 and a first boss 122. The edge of the plate forms the fourth radial flange 444. The through hole 121 is an oblong hole with a diameter smaller than the radial dimension of the filter 200. It forms an interference fit with the first boss 122 on the edge, which facilitates the installation guide path for the filter 200, making it less likely for the filter 200 to rotate or shift, limiting the degree of freedom of movement of the filter 200 during installation, and making installation more convenient and faster.

[0080] In the above embodiments, the fixing frame 110 and the fixing bracket 120 are separate structures and are fastened together by fasteners. In other embodiments, the fixing frame 110 and the fixing bracket 120 may also be integrally formed structures.

[0081] like Figure 1 and Figure 2 As shown, the fixed bracket 120 has a first protrusion 122 on its surface opposite to the fixed frame 110, and a through hole 121 passes through the first protrusion 122. The side wall of the first protrusion 122 has a notch 123. The notch 123 on the side wall of the first protrusion 122 facilitates the insertion of tools for later disassembly of the filter 200. The first protrusion 122 also further protects the filter 200 from damage.

[0082] like Figure 2 As shown, a reinforcing rib 334 is provided between the third radial flange 333 and the outer wall of the fixed frame 110. The reinforcing rib 334 is used to improve the structural strength and rigidity of the body 100, prevent deformation, optimize the structural design, and help extend the service life.

[0083] like Figure 1 As shown, the surface of the third radial flange 333 is provided with screw fixing posts 335. The screw fixing posts 335 are used to accommodate fasteners for connecting the third radial flange 333 and the fourth radial flange 444, and to protect and fix the fasteners.

[0084] This utility model also provides a filter assembly, which includes a filter 200 and a fixing assembly for the filter 200 as described above. The filter 200 is installed in the fixing assembly. The filter 200 includes a filter bottle body 210 and a filter bottle cover 220. One end of the filter bottle body 210 is closed and has a second radial flange 222. The filter bottle body 210 is hollow inside and is used to place a filter element (not shown in the figure). The other end of the filter bottle body 210 is open and connected to the filter bottle cover 220.

[0085] The filter bottle body 210 is placed inside the receiving cavity 2. One end is closed and has a second radial flange 222, which, together with the first radial flange 111, is used to cooperate with the clamp 1 to fix the filter 200. The other end is open and connects to the filter bottle cover 220 to realize the filtration function of the filter 200. The fastener housed in the screw fixing post 335 can be a self-tapping screw. Furthermore, the self-tapping screw can be made of stainless steel to increase corrosion resistance.

[0086] like Figure 2 As shown, the outer surface of the closed end of the filter bottle body 210 is recessed and has a second protrusion 211. The second protrusion 211 has a T-shaped longitudinal section in the filter 200; a decorative plug 212 is provided inside the second protrusion 211. The T-shaped design of the second protrusion 211 conforms to ergonomics, making it easier to hold and thus more convenient to pick up the filter bottle body 210 and apply force. By setting the decorative plug 212, the internal hollow structure of the filter 200 is concealed, preventing the internal structure from being seen, thereby increasing its aesthetic appeal.

[0087] like Figure 2 As shown, both the inner surface of the closed end of the filter bottle body 210 and the surface of the filter bottle cap 220 facing the interior of the filter bottle body 210 are provided with limiting protrusions 213. These limiting protrusions 213 cooperate with the filter bottle body 210, inserting the filter bottle body 210 into the limiting protrusions 213 on the filter bottle cap 220, thus limiting the position of the filter element inside the bottle body. In the above embodiment, the limiting protrusions 213 have a spin-welded structure, facilitating spin-welding between the bottle body and the cap.

[0088] The filter cap 220 is also provided with a through water inlet 214. The water inlet 214 includes a water inlet, a water outlet, and a wastewater outlet, and the specific configuration is defined according to the requirements of the filter element design.

[0089] This embodiment also provides a water purifier, which includes the filter assembly as described above.

[0090] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A filter fixing assembly, characterized by, The fixing assembly comprises a body and a hoop, the body has a receiving cavity inside, one end of the body is provided with a first radial flange, the receiving cavity is used for receiving the filter, one end of the filter is provided with a second radial flange; The hoop is arranged around the first radial flange and the second radial flange, the inner surface of the hoop is provided with a groove, the first radial flange and the second radial flange are arranged in the groove, and the hoop is fastened by a fastener so that the first radial flange and the second radial flange are locked in the groove.

2. The filter securing assembly of claim 1, wherein, The hoop comprises a first part and a second part, the first part and the second part each comprise an arc-shaped part and an extension part, The arc-shaped part surrounds the first radial flange and the second radial flange, and the groove is arranged on the inner surface of the arc-shaped part; Both ends of the arc-shaped part are provided with the extension part, and the extension part extends along the radial direction of the arc-shaped part; the extension part of the first part and the extension part of the second part are fastened by a fastener.

3. The filter securing assembly of claim 2, wherein, The fastener comprises a bolt and a nut; one of the extension part of the first part and the extension part of the second part is provided with a receiving groove, and the other is provided with a protruding part; The receiving groove is recessed on the outer side surface of the corresponding extension part, and the receiving groove is a polygonal structure and is used for receiving the nut; the protruding part is protruded on the outer side surface of the corresponding extension part, the inner surface of the protruding part is provided with a counterbore, and the counterbore is used for receiving the end of the bolt.

4. The filter securing assembly of claim 1, wherein, The body comprises a fixed framework and a fixed support, the inside of the fixed framework is through-formed to form the receiving cavity, one end of the fixed framework is provided with the first radial flange, and the other end of the fixed framework is provided with a third radial flange; The fixed support is provided with a through hole, the edge of the fixed support forms a fourth radial flange, the caliber of the through hole is smaller than the radial dimension of the filter; the third radial flange and the fourth radial flange are connected by a fastener.

5. The filter securing assembly of claim 4, wherein, The surface of the fixed support away from the fixed framework is provided with a first boss, the through hole penetrates the first boss, and the side wall of the first boss is provided with a notch.

6. The filter securing assembly of claim 4, wherein, A reinforcing rib is arranged between the third radial flange and the outer side wall of the fixed framework; And / or, the surface of the third radial flange is provided with a screw fixing column.

7. A filter assembly characterized by, The filter assembly comprises a filter and a fixing assembly of the filter according to any one of claims 1-6, and the filter is installed in the fixing assembly; The filter comprises a filter bottle body and a filter bottle cap, one end of the filter bottle body is closed and provided with the second radial flange, the inside of the filter bottle body is hollow and used for placing a filter core, and the other end of the filter bottle body is open and connected with the filter bottle cap.

8. The filter assembly of claim 7, wherein, The outer surface of the closed end of the filter bottle body is recessed and provided with a second boss, the second boss is T-shaped in the longitudinal section of the filter; and the second boss is provided with a decorative plug.

9. The filter assembly of claim 7, wherein, The inner surface of the closed end of the filter bottle body and the surface of the filter bottle cap facing the inside of the filter bottle body are each provided with a limiting boss, The filter bottle cap is further provided with a water outlet penetrating through.

10. A water purifier characterized by comprising: The water purifier comprises the filter assembly according to any one of claims 7-9.

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