Filter element easy to disassemble and assemble and water purifying device

Abstract

The utility model discloses a filter element easy to disassemble and assemble and a water purifying device, and relates to the technical field of filter elements. The filter element specifically comprises a filter element body, a mounting seat and a locking structure, wherein the filter element body comprises a filter element barrel body and a filter element barrel cover arranged at one end of the filter element barrel body; one end of the mounting seat is open and is used for sleeving the waterway connecting end of the filter element barrel body; the locking structure is arranged in a containing cavity formed in the filter element barrel cover and comprises at least one buckling tongue and a driving structure for driving the buckling tongue to partially extend out of or retract into the containing cavity; and the side wall of the mounting seat is provided with a notch for buckling part of the buckling tongue. The locking structure can drive part of the buckle tongue to extend out of or retract back from the containing cavity, so that the extending part of the buckle tongue is clamped with the notch, a thread screwing mode is not needed, the workload of a user is reduced, the convenience of replacing the filter element body is improved, and meanwhile the situation that the filter element body is damaged due to the fact that the force of the thread screwing mode is not easy to control is avoided. And the installation accessories are damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to an easily detachable filter element and a water purification device. Background Art

[0002] A filter element is a device used to remove impurities and contaminants from water. It's typically installed on water dispensers, water purifiers, or faucets to ensure the cleanliness and safety of drinking water. The filter element's primary function is to remove harmful substances from the water, such as suspended solids, bacteria, viruses, residual chlorine, heavy metals, odors, pesticide residues, and organic pollutants, while retaining minerals beneficial to the human body. Over time, harmful substances accumulate in the filter element, necessitating regular replacement.

[0003] With the development of the water purification industry, for water dispensers, when installing the filter element, it is necessary to screw it into the installation seat of the water dispenser by rotating it. In order to prevent the filter element from leaking at the water inlet and outlet and the joints of the filter element water channel plate, the fittings are designed to be interference fit or fit very tightly to avoid leakage after the filter element is installed.

[0004] After studying the existing technology, it was found that the filter element used in the water dispenser still has some shortcomings. Since the filter element is tightened on the mounting seat in a spiral manner and is set very tightly at the mating parts, and the filter element is a consumable, it needs to be replaced regularly after a period of use. As a result, it is very difficult to rotate the filter element when removing or installing it. Some even require professionals to come to the user's home or use tools to replace the filter element for the user. These have caused great inconvenience to the user and affected the user's experience. At the same time, it is difficult to control the force with the help of tools, which can easily cause the filter element to be damaged after tightening, affecting the use effect of the filter element.

[0005] Therefore, the present application aims to improve the convenience of filter element replacement while also preventing the filter element from being easily damaged by being screwed and fixed. Utility Model Content

[0006] The main purpose of the present invention is to provide a method for improving the convenience of replacing the filter element, while also preventing the filter element from being easily damaged by being tightened and fixed.

[0007] To achieve the above-mentioned object, the present invention provides an easily detachable filter element, comprising: a filter element body, which includes a filter element barrel body and a filter element barrel cover provided at one end of the filter element barrel body; a mounting seat, one end of which is open and is used to fit the water channel connection end of the filter element barrel body; and a locking structure, which is provided in a receiving cavity defined by the filter element barrel cover and includes at least one buckle tongue and a driving structure for driving the buckle tongue portion to extend or retract into the receiving cavity;

[0008] Wherein, the side wall of the mounting seat is provided with a notch for buckling a portion of the buckle tongue.

[0009] Furthermore, the driving structure includes a sliding portion and a rotating shaft provided on the inner wall of the accommodating cavity, the sliding portion is used to support the rotating shaft and is rotatably connected to the rotating shaft, and the buckle tongue is slidably connected to the sliding portion.

[0010] Furthermore, the rotating shaft is threadedly connected to the buckle tongue.

[0011] Furthermore, the rotating shaft includes an axis body passing through the buckle tongue and a protrusion arranged on the outer wall of the axis body, the buckle tongue is provided with a spiral portion resting against the protrusion, and an elastic member is provided on the side of the buckle tongue away from the protrusion, and the elastic member is used to provide a force for the buckle tongue to extend out of the accommodating cavity.

[0012] Furthermore, the sliding portion includes at least a pair of guide frames fixed to the inner wall of the accommodating cavity, and the buckle tongue is also provided with a pair of guide portions. The guide frames on both sides extend toward each other and fit into the guide portions on the corresponding sides.

[0013] Furthermore, the sliding portion includes a support frame fixed to the inner wall of the accommodating cavity, and the outer wall of the shaft body is also provided with a receiving portion, and the end of the support frame away from the fixed end is clamped on the outside of the receiving portion.

[0014] Furthermore, an end seat is fixed in the middle of the accommodating cavity, the end of the shaft body facing the end seat is spherical and rests on the end seat, the buckle tongue is provided with a support groove on the side facing the end seat, and the elastic member is provided between the support groove and the end seat.

[0015] Furthermore, when there are two buckle tongues, a snap-fit ​​groove is fixed to one end of the rotating shaft facing the outside of the accommodating cavity, and a same handle is snap-fitted between a pair of the snap-fit ​​grooves, so that the handle and the rotating shaft can rotate synchronously.

[0016] Furthermore, the filter cartridge barrel body and the filter cartridge barrel cover are fixedly connected, the inner wall of the mounting seat is provided with a guide groove, and the peripheral wall of the filter cartridge barrel cover is provided with a rib adapted to the guide groove.

[0017] The present application also discloses a water purification device, including a water purification device equipped with the above-mentioned easily detachable filter element, the water purification device at least including a filter water inlet end and a filter water outlet end, the filter water inlet end and the filter water outlet end being connected to the water connection end of the filter element barrel body.

[0018] The above technical solution has the following advantages:

[0019] The utility model provides a locking structure at the filter cartridge barrel cover, and the locking structure can drive part of the buckle tongue to extend or retract from the accommodating cavity, so that the extended part of the buckle tongue is clamped with the notch, and the filter cartridge barrel body can be fixed on the mounting seat. The entire installation method does not require the use of a threaded screw-in method, which greatly reduces the workload of the user and improves the convenience of replacing the filter cartridge body. At the same time, it also avoids the damage to the installation accessories caused by the difficulty in controlling the force of the threaded screw-in method.

[0020] The locking structure adopts the combination of end seat, sliding part, elastic part and rotating shaft. The handle is stuck in the clamping groove. When the handle is turned, the clamping groove can be rotated by the handle, and the rotating shaft can drive the buckle tongue to retract into the accommodating cavity. The whole operation process is extremely convenient. The user only needs to pull the handle commonly used to complete the disassembly operation, which greatly reduces the operation of replacing the filter element for the user. When the handle is released, the handle is also stuck in the groove around the end cover of the filter element due to the action of the spiral part, thereby saving occupied area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model in the installation state from the first perspective;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model in the second perspective when it is installed;

[0025] Figure 4 This is a schematic diagram of the overall explosion structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the explosion structure of the filter cartridge barrel cover of the utility model;

[0027] Figure 6 This is a schematic diagram of the internal structure of the filter cartridge barrel cover of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the buckle tongue of the utility model;

[0029] Figure 8 This is a schematic structural diagram of the rotating shaft of the utility model;

[0030] Figure 9 This is a schematic diagram of the cross-sectional structure of the utility model in a disassembled state;

[0031] Figure 10 It is a schematic diagram of the cross-sectional structure of the utility model in the installed state.

[0032] In the figure: 1. Mounting seat; 11. Guide groove; 12. Recess; 13. Waterway plate; 2. Filter element body; 21. Filter element barrel; 22. Filter element barrel cover; 221. Accommodating chamber; 222. Tongue hole; 223. Raised rib; 23. Filter element end cover; 24. Handle; 3. Locking structure; 31. End seat; 32. Sliding part; 321. Guide frame; 322. Support frame; 33. Elastic member; 34. Rotating shaft; 341. Snap-fit ​​groove; 342. Receiving part; 343. Shaft; 344. Protrusion; 35. Buckle tongue; 351. Guide part; 352. Spiral part; 353. Support groove; 354. Buckling part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.

[0034] like Figures 1-4 As shown, an easily detachable filter element and water purification device includes a filter element body 2, a mounting seat 1 and a locking structure 3. The filter element body 2 includes a filter element barrel 21 and a filter element barrel cover 22 provided at one end of the filter element barrel 21; one end of the mounting seat 1 is open for fitting the water connection end of the filter element barrel 21; the locking structure 3 is provided in an accommodating cavity 221 opened by the filter element barrel cover 22, and includes at least one buckle tongue 35 and a driving structure for driving the buckle tongue 35 to partially extend or retract into the accommodating cavity 221; wherein, the side wall of the mounting seat 1 is provided with a recess 12 for buckling part of the buckle tongue 35. The filter cartridge body 21 and the filter cartridge cover 22 are fixedly or rotatably connected, preferably in a fixed manner, and the positions of the water inlet and water outlet ends of the filter cartridge body 21 can be adjusted to improve the convenience of installation. The filter cartridge body 21 and the filter cartridge cover 22 are welded, such as ultrasonic welding. A waterway plate 13 is also provided at the mounting seat 1 away from the open end. The filter cartridge body 21 is installed in the mounting seat 1 and matched with the waterway plate 13. The waterway plate 13 is connected to the waterway connecting end of the filter cartridge body 2. The waterway connecting end includes a water inlet and a water outlet, and may also include a wastewater outlet to achieve connectivity of the filter cartridge waterway.

[0035] Specifically, the inner wall of the mounting seat 1 is provided with a guide groove 11, and the peripheral wall of the filter cartridge barrel cover 22 is provided with a convex rib 223 adapted to the guide groove 11. When the filter cartridge barrel body 21 and the filter cartridge barrel cover 22 are installed in the mounting seat 1 together, the convex rib 223 is stuck in the guide groove 11 and limits the installation direction of the filter cartridge barrel body 21, so that the water inlet, water outlet and wastewater outlet of the filter cartridge barrel body 21 are aligned with the waterway plate 13; the driving structure is a mechanical structure, which can be manually operated to drive the buckle tongue 35 to partially extend or retract. A notch 12 is provided on the side wall of the mounting seat 1. The notch 12 can be set as a hole or a groove, or it can be specifically set according to the shape of the buckle tongue 35 extending out. For example, a rib that blocks the protruding part of the buckle tongue 35 is set in the groove. If a hole is used, the protruding part of the buckle tongue 35 is directly stuck in the side wall of the hole, thereby limiting the installation position of the filter cartridge body 2. The protruding part of the buckle tongue 35 is a buckling part 354, as shown in FIG. Figure 7 The side wall of the filter barrel 21 is provided with a tongue hole 222 corresponding to the buckle portion 354, so that the buckle portion 354 can extend from the tongue hole 222 and be stuck in the recess 12, as shown Figure 6 shown.

[0036] like Figure 4-Figure 6 As shown, the buckle tongue 35 can be squeezed out of the accommodating cavity 221 by means of a lever in the accommodating cavity 221. By squeezing one end of the buckle tongue 35, the buckle tongue 35 can be squeezed out of the accommodating cavity 221. In order to improve the stability of movement and increase the service life, in the present application, the driving structure includes a sliding part 32 and a rotating shaft 34 provided on the inner wall of the accommodating cavity 221. The sliding part 32 is used to support the rotating shaft 34 and is rotatably connected to the rotating shaft 34. The buckle tongue 35 is slidably connected to the sliding part 32. Among them, the sliding part 32 includes at least a pair of guide frames 321 fixed on the inner wall of the accommodating cavity 221, and the buckle tongue 35 is also provided with a pair of guide parts 351. The guide frames 321 on both sides extend toward each other and fit into the guide parts 351 on the corresponding side, thereby limiting the stability of the movement of the buckle tongue 35. The extended part of the guide frame 321 can be in the form of a barb or a guide rib; in addition, the sliding part 32 can also be provided with a groove body at the bottom end of the accommodating cavity 221, so that the guide part 351 fits and slides with the groove body at the bottom end of the accommodating cavity 221, thereby limiting the stability of the movement of the buckle tongue 35.

[0037] The sliding portion 32 includes a support frame 322 fixed to the inner wall of the accommodating chamber 221, and the outer wall of the shaft body 343 is further provided with a receiving portion 342, and the support frame 322 is stuck on the outside of the receiving portion 342 at one end away from the fixed portion. The open end of the filter cartridge barrel 21 is detachably mounted with the filter cartridge end cover 23, preferably in a card-connected manner for easy removal and replacement. When the filter cartridge end cover 23 is carded on the filter cartridge barrel 21, the rotating shaft 34 is rotated to be set between the support frame 322 and the filter cartridge end cover 23, and the rotating shaft 34 is rotated to be set at the support frame 322. In order to avoid interference between the buckle tongue 35 and the support frame 322, a hole penetrating the support frame 322 is further provided on the buckle tongue 35. Figure 7 shown.

[0038] As Example 1 of this application:

[0039] The rotating shaft 34 is threadedly connected to the buckle tongue 35. When the rotating shaft 34 and the support frame 322 rotate, the rotating shaft 34 extends out of one end of the accommodating cavity 221, and the extended part of the buckle tongue 35 is gradually retracted into the accommodating cavity 221 as the rotating shaft 34 rotates. At this time, the number of buckle tongues 35 can be set in multiple groups. In this application, in order to improve the convenience of disassembly, it is preferably set up with one or two groups.

[0040] As the second embodiment of this application:

[0041] The rotating shaft 34 includes a shaft body 343 that passes through the buckle tongue 35 and a protrusion 344 provided on the outer wall of the shaft body 343. The buckle tongue 35 is provided with a spiral portion 352 that abuts against the protrusion 344. The buckle tongue 35 is provided with an elastic member 33 on the side away from the protrusion 344. The elastic member 33 is used to provide a force for the buckle tongue 35 to extend out of the accommodating cavity 221. Among them, since the receiving portion 342 and the support frame 322 rotate, the shaft body 343 and the receiving portion 342 rotate synchronously, the spiral portion 352 is rifling-shaped and conflicts with the protrusion 344. If the rotating shaft 34 is rotated by hand, the spiral portion 352 moves due to the position change of the protrusion 344, and the buckling portion 354 of the buckle 35 is retracted into the accommodating cavity 221, thereby releasing the position of the buckling portion 354 stuck in the recess 12. At this time, the filter element body 2 can be pulled outward for easy disassembly; when the rotating shaft 34 is released, the elastic member 33 drives the buckle 35 to gradually extend along the sliding portion 32 through its own elastic force. At this time, the buckling portion 354 can extend toward the recess 12, and the filter element body 2 can be locked again.

[0042] like Figure 5 and Figure 6 As shown, on the basis of the second embodiment, the elastic member 33 can be implemented by means of a spring, a spring, etc., and it is only necessary to provide a force for the buckle tongue 35 to extend. The elastic member 33 can be installed on the inner wall of the accommodating cavity 221, or when two symmetrical buckle tongues 35 are provided, the spring can be installed between the two buckle tongues 35; for the elastic member 33 installed in the accommodating cavity 221, if a spring is used, one end of the spring is fixed to the inner wall of the accommodating cavity 221, and the other end acts on the end of the buckle tongue 35 away from the corresponding tongue outlet hole 222.

[0043] like Figure 5-Figure 7As shown, if a spring arrangement is used, an end seat 31 is fixed in the middle of the accommodating cavity 221. The end of the shaft 343 facing the end seat 31 is spherical and rests against the end seat 31. A support groove 353 is provided on the side of the latch tongue 35 facing the end seat 31, and a spring is disposed between the support groove 353 and the end seat 31. One end of the spring is retained in the support groove 353, thereby defining the position of the spring, while the other end is also retained in the groove of the end seat 31. In this arrangement, multiple sets of latch tongues 35 can be selected, but this disassembly method is somewhat cumbersome. Therefore, based on the inventor's research, two sets of latch tongues 35 are selected as the optimal arrangement, as detailed below:

[0044] like Figure 4-10 As shown, when the number of the buckle tongues 35 is two, a snap-fit ​​groove 341 is fixed to one end of the rotating shaft 34 facing the outside of the accommodating cavity 221. A pair of snap-fit ​​grooves 341 are fixed with the same handle 24, so that the handle 24 and the rotating shaft 34 can rotate synchronously. When the handle 24 is stuck in the snap-fit ​​groove 341 through the filter element end cover 23, the cross-section of the snap-fit ​​groove 341 is polygonal. When the handle 24 is stuck in the snap-fit ​​groove 341, if it is not operated, the snap-fit ​​portion 354 extends from the tongue hole 222 under the joint action of the spiral portion 352 and the protrusion 344. At this time, it can be stuck in the recess 12, and the handle 24 is locked. The spiral portion 352 is also stuck in the groove around the filter element end cover 23 due to the action of the spiral portion 352, thereby saving space. When the handle 24 is grasped and lifted, the handle 24 drives the rotating shaft 34 to rotate. The rotating shaft 34 acts on the spiral portion 352 through the protrusion 344, causing the spiral portion 352 to compress the elastic member 33 and gradually retract the locking portion 354 into the accommodating cavity 221, thereby completing the unlocking operation. The entire operation process is extremely convenient. The user only needs to pull the handle 24 to complete the disassembly operation, which greatly reduces the user's operation of replacing the filter element.

[0045] like Figure 4 As shown, a water purification device is installed with the above-mentioned easily detachable filter element. The water purification device can adopt a water purifier, a water dispenser, a water softener, a pre-water purifier, etc. The water purification device at least includes a filter water inlet end and a filter water outlet end, and the filter water inlet end and the filter water outlet end are connected to the water channel connection end of the filter element barrel body 21. The filter water inlet end flows into the water body toward the water inlet of the filter element barrel body 21. The water body flows out from the water outlet after being filtered by the filter element barrel body 21 and flows to the filter water outlet end of the water purification device, and subsequent heating and drinking operations can be carried out. A wastewater reflux end can also be set on the water purification device to connect it with the wastewater outlet of the filter element barrel body 21, and the wastewater filtered by the filter element barrel body 21 flows out from the wastewater reflux end.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An easily detachable filter element, characterized in that: include: A filter element body (2) comprises a filter element barrel body (21) and a filter element barrel cover (22) provided at one end of the filter element barrel body (21); A mounting seat (1) with one end open for fitting onto the water connection end of the filter cartridge barrel (21); as well as A locking structure (3) is provided in a receiving cavity (221) provided in the filter cartridge barrel cover (22), and comprises at least one buckle tongue (35) and a driving structure for driving the buckle tongue (35) to partially extend or retract into the receiving cavity (221); Wherein, the side wall of the mounting seat (1) is provided with a notch (12) for buckling a portion of the buckle tongue (35).

2. The easily detachable filter element according to claim 1, wherein: The driving structure comprises a sliding portion (32) and a rotating shaft (34) arranged on the inner wall of the accommodating cavity (221); the sliding portion (32) is used to support the rotating shaft (34) and is rotatably connected to the rotating shaft (34); and the buckle tongue (35) is slidably connected to the sliding portion (32).

3. The easily detachable filter element according to claim 2, characterized in that: The rotating shaft (34) is threadedly connected to the buckle tongue (35).

4. The easily detachable filter element according to claim 2, wherein: The rotating shaft (34) includes an axis body (343) passing through the buckle tongue (35) and a protrusion (344) provided on the outer wall of the axis body (343); the buckle tongue (35) is provided with a spiral portion (352) abutting against the protrusion (344); an elastic member (33) is provided on the side of the buckle tongue (35) away from the protrusion (344); the elastic member (33) is used to provide a force for the buckle tongue (35) to extend out of the accommodating cavity (221).

5. The easily detachable filter element according to claim 4, characterized in that: The sliding portion (32) includes at least a pair of guide frames (321) fixed to the inner wall of the accommodating cavity (221), and the buckle tongue (35) is also provided with a pair of guide portions (351). The guide frames (321) on both sides extend toward each other and fit the guide portions (351) on the corresponding sides.

6. The easily detachable filter element according to claim 4 or 5, characterized in that: The sliding portion (32) includes a support frame (322) fixed to the inner wall of the accommodating cavity (221), and the outer wall of the shaft body (343) is also provided with a receiving portion (342), and the end of the support frame (322) away from the fixed end is clamped outside the receiving portion (342).

7. The easily detachable filter element according to claim 4, characterized in that: An end seat (31) is fixed in the middle of the accommodating cavity (221); one end of the shaft (343) facing the end seat (31) is spherical and abuts against the end seat (31); a support groove (353) is provided on the side of the buckle tongue (35) facing the end seat (31); and the elastic member (33) is arranged between the support groove (353) and the end seat (31).

8. The easily detachable filter element according to claim 4, wherein: When the number of the buckle tongues (35) is two, a clamping groove (341) is fixed to one end of the rotating shaft (34) facing the outside of the accommodating cavity (221), and a handle (24) is clamped between a pair of the clamping grooves (341), so that the handle (24) and the rotating shaft (34) can rotate synchronously.

9. The easily detachable filter element according to claim 1, wherein: The filter cartridge barrel body (21) and the filter cartridge barrel cover (22) are fixedly connected, the inner wall of the mounting seat (1) is provided with a guide groove (11), and the peripheral wall of the filter cartridge barrel cover (22) is provided with a convex rib (223) adapted to the guide groove (11).

10. A water purification device, characterized in that: The water purification device comprises a water purification device equipped with an easily detachable filter element as claimed in any one of claims 1 to 9, the water purification device comprises at least a filter water inlet end and a filter water outlet end, the filter water inlet end and the filter water outlet end are connected to the water connection end of the filter element barrel (21).

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