Filter core clamping structure

Abstract

This utility model belongs to the field of water purification and filtration technology, and provides a filter cartridge snap-fit ​​structure, including a snap-fit ​​block, two limiting rods, and an unlocking component. The snap-fit ​​block is located at the end of the filter cartridge that connects to the water circuit board assembly and is protruding. The two limiting rods are located in the water circuit board assembly and are respectively located on both sides of the valve that connects to the filter cartridge. An elastic element is provided between the opposite side of each limiting rod and the water circuit board assembly. The elastic force of the elastic element is used to bring the two limiting rods closer together to fix the snap-fit ​​block. The unlocking component is used to open the two limiting rods to release the snap-fit ​​block. This filter cartridge snap-fit ​​structure can effectively fix the snap-fit ​​block at the end of the filter cartridge through the two limiting rods, thereby preventing the filter cartridge from loosening.

Description

Technical Field

[0001] This utility model belongs to the field of water purification and filtration technology, specifically relating to a filter cartridge snap-fit ​​structure. Background Technology

[0002] Filter cartridges are the core components of water purification equipment, responsible for both purification and filtration. A filter cartridge contains filter media that adsorbs and filters impurities and harmful substances as water flows through, resulting in clean water. Therefore, filter cartridges are consumables and need to be replaced regularly to maintain effective water purification. To facilitate regular filter cartridge replacement, a new snap-fit ​​structure is needed to simplify the installation and removal process for users. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a filter element snap-fit ​​structure that facilitates the disassembly and replacement of the filter element.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A filter cartridge snap-fit ​​structure includes a snap-fit ​​block, two limiting rods, and an unlocking component;

[0006] The card block is located at the end where the filter element connects to the water circuit board assembly and is protruding.

[0007] The two limiting rods are disposed in the water circuit plate assembly and are respectively located on both sides of the valve that connects with the filter element. An elastic element is provided between the back side of the two limiting rods and the water circuit plate assembly. The elastic force of the elastic element is used to make the two limiting rods move closer to each other to fix the locking block.

[0008] The unlocking component is used to pry open the two limiting rods to release the locking block.

[0009] In a preferred embodiment of this utility model, the card block and the two limiting rods are provided with grooves on their corresponding sides; the two limiting rods are provided with embedding blocks on their opposite sides, and the embedding blocks are adapted to the grooves.

[0010] Preferably, the side of the embedded block facing the filter element is inclined.

[0011] In a preferred embodiment of this utility model, the end face of the card block is provided with several through holes, and the through holes correspond to the valves or water source inlets and outlets on the water circuit board assembly.

[0012] In a preferred embodiment of this utility model, each of the limiting rods includes a first rod and a second rod, with a transition rod connecting the first rod and the second rod; the first rod is used to cooperate with the locking block, and the second rod extends beyond the locking block; the unlocking member opens the second rod of the two limiting rods to drive the two limiting rods to move in opposite directions, thereby releasing the locking block. In this embodiment, the embedding block is disposed on the first rod.

[0013] Preferably, the two second rods are inclined on the side facing the filter element and form a V-shaped groove when they are close to each other; the unlocking member can slide along the length of the filter element, and one end of the unlocking member corresponds to the V-shaped groove. When it is necessary to move the two limiting rods in opposite directions to release the locking block, the unlocking member can be pressed to move towards the V-shaped groove and gradually spread the two second rods apart, so that the two limiting rods move in opposite directions and the embedded block on the limiting rod leaves the groove on the side of the locking block, at which point the filter element can be removed.

[0014] Preferably, the unlocking element is slidably disposed on the outer shell of the filter element along the length direction of the filter element.

[0015] In a preferred embodiment of this utility model, a positioning block is provided on the back side of the limiting rod, and the positioning block is protruding; one end of the elastic element is adapted to the positioning block, and the other end abuts against the water channel plate assembly.

[0016] In a preferred embodiment of this utility model, the housing of the water circuit board assembly is provided with a cavity, the two limiting rods are disposed in the cavity, and support plates are provided on both sides of the valve in the cavity, and baffles are provided on the outer side of the support plates; the two limiting rods are respectively located on the support plates on both sides of the valve, and the elastic element is located between the limiting rods and the baffles.

[0017] Preferably, the support plate is provided with a limiting protrusion; the limiting rod is provided with a limiting recess corresponding to the limiting protrusion.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The filter cartridge snap-fit ​​structure of this invention effectively secures the snap-fit ​​block at the end of the filter cartridge using two limiting rods, thus preventing the filter cartridge from loosening. When installing the filter cartridge, simply insert it between the two limiting rods, ensuring the snap-fit ​​block aligns with them; no other additional steps are required. When removing the filter cartridge, use the unlocking mechanism to pry open the two limiting rods, allowing the snap-fit ​​block to be unrestricted and the filter cartridge to be removed. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional exploded view of the filter element snap-fit ​​structure of this utility model.

[0022] Figure 2 for Figure 1 Exploded view of part of the water circuit board assembly.

[0023] Figure 3 This is a 3D view of the water channel plate assembly and the limiting rod.

[0024] Figure 4 This is a 3D view of the filter cartridge outer barrel and the retaining block.

[0025] in:

[0026] 1-Outer shell, 2-Outer barrel, 3-Card block, 301-Groove, 302-Through hole, 4-Water circuit board assembly, 5-Limiting rod, 501-First rod, 502-Second rod, 503-Positioning block, 504-Embedded block, 505-Transition rod, 506-Limiting recess, 6-Unlocking component, 7-Elastic element, 8-Support piece, 801-Limiting protrusion, 9-Baffle. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] See Figures 1-4This embodiment discloses a filter element snap-fit ​​structure, including a snap-fit ​​block 3, two limiting rods 5, and an unlocking component 6. The snap-fit ​​block 3 is disposed at the end where the filter element connects to the water circuit board assembly 4 and is protruding; the two limiting rods 5 are disposed in the water circuit board assembly 4 and are respectively located on both sides of the valve that connects to the filter element. An elastic element 7 is provided between the opposite side of the two limiting rods 5 and the water circuit board assembly 4. The elastic force of the elastic element 7 is used to make the two limiting rods 5 move closer to each other to fix the snap-fit ​​block 3; the unlocking component 6 is used to open the two limiting rods 5 to release the snap-fit ​​block 3.

[0030] Furthermore, each limiting rod 5 in this embodiment includes a first rod 501 and a second rod 502, with a transition rod 505 connecting the first rod 501 and the second rod 502; the first rod 501 is used to cooperate with the locking block 3, and the second rod 502 extends beyond the locking block 3; the unlocking member 6 opens the second rod 502 of the two limiting rods 5 to drive the two limiting rods 5 to move in opposite directions, thereby releasing the locking block 3.

[0031] In this embodiment, the locking block 3 and the two limiting rods 5 are provided with grooves 301 on their corresponding sides; the first rods 501 of the two limiting rods 5 are provided with embedding blocks 504 on their opposite sides, and the embedding blocks 504 are adapted to the grooves 301. The embedding blocks 504 are inclined towards the filter element. In this way, the mutual cooperation between the embedding blocks 504 and the grooves 301 helps to lock the locking block 3, and combined with the elastic force of the elastic element 7, effectively fixes the filter element in place and prevents it from loosening. The inclined side of the embedding block 504 in this embodiment provides a guide when the locking block 3 is inserted between the two limiting rods 5, and also makes the insertion of the locking block 3 and the filter element smoother and easier. In this embodiment, the limiting rods 5 and the side of the embedding block 504 facing away from the filter element are both set as flat, which allows the limiting rods 5 to better cooperate with the water channel plate assembly 4, and allows the limiting rods 5 to slide better on the water channel plate assembly 4.

[0032] Both second rods 502 are inclined towards the filter element and form a V-shaped groove when they are close to each other; the unlocking member 6 can slide along the length of the filter element, and one end of the unlocking member 6 corresponds to the V-shaped groove. When it is necessary to move the two limiting rods 5 in opposite directions to release the locking block 3, the unlocking member 6 can be pressed to move towards the V-shaped groove and gradually open the two second rods 502, so that the two limiting rods 5 move in opposite directions and the embedded block 504 on the limiting rod 5 leaves the groove 301 on the side of the locking block 3, at which point the filter element can be removed. When the unlocking member 6 is not pressed, the elastic force of the elastic element 7 causes the two limiting rods 5 to move relative to each other. At this time, during the relative movement of the two second rods 502, the unlocking member 6 is lifted up, so that the unlocking member 6 also returns to its original position.

[0033] The unlocking member 6 of this embodiment can be disposed on the outer wall of the outer shell 1 of the filter element. The unlocking member 6 can slide along the length of the filter element and has a rod-shaped structure. Alternatively, the unlocking member 6 of this embodiment can be disposed elsewhere. Disposing it on the outer shell 1 offers the advantage of convenient operation and also allows for the relatively easy provision of compatible guides or other assembly structures on the outer shell 1. Furthermore, an elastic device, such as a spring, can be provided on the outer shell 1 to elastically reset the unlocking member 6.

[0034] Furthermore, in this embodiment, the end of the unlocking member 6 corresponding to the V-shaped groove is also V-shaped so that the two can be better matched so as to realize the opening of the two limiting rods 5 and the lifting of the unlocking member 6 when resetting.

[0035] Furthermore, a positioning block 503 is provided on the opposite side of the limiting rod 5, and the positioning block 503 is protruding; one end of the elastic element 7 is adapted to the positioning block 503, and the other end abuts against the water channel plate assembly 4. Specifically, the elastic element 7 in this embodiment can be a spring, and multiple springs can be provided. In this embodiment, two elastic elements 7 are provided, one of which acts on the first rod 501 and the other acts on the second rod 502; correspondingly, two positioning blocks 503 are also provided on the opposite side of the first rod 501 and the second rod 502 in this embodiment.

[0036] Furthermore, the housing of the water circuit board assembly 4 is provided with a cavity, and two limiting rods 5 are disposed in the cavity. Support plates 8 are provided on both sides of the valve in the cavity, and baffles 9 are provided on the outer side of the support plates 8. The two limiting rods 5 are respectively located on the support plates 8 on both sides of the valve, and the elastic element 7 is located between the limiting rods 5 and the baffles 9. In this embodiment, the water circuit board assembly 4 is provided with a cover plate on the top of the cavity, and the cover plate has a hollow hole for the insertion of the locking block.

[0037] Furthermore, the support plate 8 is provided with a limiting protrusion 801; the limiting rod 5 is provided with a limiting recess 506 corresponding to the limiting protrusion 801. When the two limiting rods 5 move relative to each other under the elastic force of the elastic element 7, the limiting protrusion 801 and the limiting recess 506 limit the distance between the two limiting rods 5, preventing them from getting too close, and at the same time, they can achieve more precise locking and fixing of the locking block 3.

[0038] In this embodiment, the end face of the card block 3 is provided with several through holes 302, which correspond to the valves or water inlets and outlets on the water circuit board assembly 4. In this embodiment, the card block 3 can be integrally manufactured with the outer barrel 2 of the filter element, and the filter element is set in the inner cavity of the outer barrel 2. The water outlet port of the filter element can be connected to one of the through holes 302 of the card block 3.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A filter cartridge snap-fit ​​structure, characterized in that, Includes a locking block, two limit levers, and an unlocking mechanism; The card block is located at the end where the filter element connects to the water circuit board assembly and is protruding. The two limiting rods are disposed in the water circuit plate assembly and are respectively located on both sides of the valve that connects with the filter element. An elastic element is provided between the back side of the two limiting rods and the water circuit plate assembly. The elastic force of the elastic element is used to make the two limiting rods move closer to each other to fix the locking block. The unlocking component is used to pry open the two limiting rods to release the locking block.

2. The filter element snap-fit ​​structure according to claim 1, characterized in that, The card block and the two limiting rods are provided with grooves on their corresponding sides; the two limiting rods are provided with embedding blocks on their opposite sides, and the embedding blocks are adapted to the grooves.

3. The filter element snap-fit ​​structure according to claim 2, characterized in that, The embedded block is tilted towards the side of the filter element.

4. The filter cartridge snap-fit ​​structure according to claim 1, characterized in that, The end face of the card block is provided with several through holes, which correspond to the valves or water inlets and outlets on the water circuit board assembly.

5. The filter cartridge snap-fit ​​structure according to any one of claims 1-4, characterized in that, Each of the limiting rods includes a first rod and a second rod, with a transition rod connecting the first rod and the second rod; the first rod is used to cooperate with the locking block, and the second rod extends beyond the locking block; the unlocking member opens the second rod of the two limiting rods to drive the two limiting rods to move in opposite directions, thereby releasing the locking block.

6. The filter cartridge snap-fit ​​structure according to claim 5, characterized in that, Both of the second rods are inclined on the side facing the filter element and form a V-shaped groove when they are close to each other; the unlocking member can slide along the length of the filter element, and one end of the unlocking member corresponds to the V-shaped groove.

7. The filter element snap-fit ​​structure according to claim 6, characterized in that, The unlocking component can be slidably disposed on the outer shell of the filter element along the length of the filter element.

8. The filter element snap-fit ​​structure according to claim 1, characterized in that, The limiting rod has a positioning block on its opposite side, and the positioning block is protruding; one end of the elastic element is adapted to the positioning block, and the other end abuts against the water channel plate assembly.

9. The filter cartridge snap-fit ​​structure according to claim 1, characterized in that, The housing of the water circuit board assembly has a cavity, and the two limiting rods are disposed in the cavity. Support plates are provided on both sides of the valve in the cavity, and baffles are provided on the outer side of the support plates. The two limiting rods are respectively located on the support plates on both sides of the valve, and the elastic element is located between the limiting rods and the baffles.

10. The filter element snap-fit ​​structure according to claim 9, characterized in that, The support plate is provided with a limiting protrusion; the limiting rod is provided with a limiting recess corresponding to the limiting protrusion.

Images