Filter element shell, filter element assembly and water purification equipment

Abstract

The utility model discloses a filter element shell, a filter element assembly and water purification equipment, and relates to the technical field of water purification, the filter element shell comprises a filter bottle, a bottom cover, a decorative cover, an elastic piece and a lock catch; a mounting opening communicated with the inner cavity is formed in the bottom of the filter bottle; a first locking channel communicated with the mounting opening is formed in the outer side wall of the filter bottle; the bottom cover is detachably mounted in the mounting opening; the bottom cover is provided with an accommodating concave cavity and a second locking channel; two ends of the second locking channel are respectively communicated with the accommodating concave cavity and opposite to the first locking channel; the decorative cover is detachably mounted in the accommodating cavity; the two ends of the elastic piece are connected with the cavity wall of the containing cavity and the lock catch respectively. The lock catch is provided with a buckle structure and a spring bolt structure, and the elastic piece drives the buckle structure to press the decorative cover on the cavity wall of the containing cavity based on the elastic acting force and drives the spring bolt structure to be arranged in the second locking channel and the first locking channel in a penetrating and matched mode. According to the scheme, the connection mode between the bottom cover and the filter bottle can be simplified, the assembly and disassembly efficiency is improved, and the replacement cost of the filter element is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a filter cartridge shell, filter cartridge assembly and water purification equipment. Background Technology

[0002] Existing composite filter cartridges integrate pre-filters, post-filters, and reverse osmosis filters into a single filter bottle to reduce the space occupied by the water purification equipment. Since the lifespan of pre-filters and post-filters is typically shorter than that of reverse osmosis filters, when replacing the filters, only the pre-filters and post-filters need to be replaced, without replacing the reverse osmosis filter.

[0003] To achieve the above functions, existing filter cartridge assemblies attempt to set a removable bottom cover at the bottom of the filter bottle. By opening the bottom cover, the pre-filter and post-filter can be replaced individually without having to remove all the filter cartridges inside the filter bottle after removing the end cap at the top of the filter bottle.

[0004] However, the connection structure between the bottom cover and the filter bottle of the existing filter cartridge assembly is designed to be relatively complex. The complexity of the structure makes the assembly and disassembly process inconvenient, resulting in the filter cartridge replacement operation taking a lot of time and being prone to errors. This affects the maintenance efficiency of the water purification equipment and leads to a poor user experience. Utility Model Content

[0005] The main purpose of this utility model is to propose a filter element housing that simplifies the connection between the bottom cover and the filter bottle, improves assembly and disassembly efficiency, and reduces the replacement cost of the filter element.

[0006] To achieve the above objectives, the filter cartridge housing proposed in this utility model includes:

[0007] A filter bottle, wherein the bottom of the filter bottle is provided with an installation port that communicates with the inner cavity of the filter bottle; the outer side wall of the filter bottle is provided with a first locking channel that communicates with the installation port;

[0008] The bottom cover is detachably installed in the mounting opening; the bottom cover has a receiving cavity and a second locking channel, the receiving cavity is opposite to the inner cavity of the filter bottle, one end of the second locking channel is connected to the receiving cavity, and the other end of the second locking channel is opposite to the first locking channel;

[0009] A decorative cover is detachably installed in the accommodating cavity;

[0010] An elastic element, the first end of which is connected to the cavity wall of the accommodating cavity;

[0011] The latch is connected to the second end of the elastic element; the latch has a snap-fit ​​structure and a latching tongue structure. The snap-fit ​​structure pushes the decorative cover against the cavity wall of the accommodating cavity under the elastic force of the elastic element, and the latching tongue structure passes through and engages with the second locking channel and the first locking channel in sequence under the elastic force of the elastic element.

[0012] In one embodiment, the accommodating cavity is provided with a first guide groove, the first end of the first guide groove is connected to the second locking channel, the first end of the elastic member is connected to the second end of the first guide groove, and the locking tongue structure slides in the first guide groove under the elastic force of the elastic member.

[0013] In one embodiment, a plurality of reinforcing ribs are protruding from the cavity wall of the accommodating cavity, and the plurality of reinforcing ribs surround to form the first guide groove.

[0014] In one embodiment, the latch further has a boss structure that extends along the width of the first guide groove. The boss structure has a first sidewall and a second sidewall that are disposed opposite to each other. The first sidewall is slidably fitted onto the reinforcing rib. The decorative cover is mounted on the second sidewall. There is a first preset distance between the decorative cover and the latch structure.

[0015] In one embodiment, the decorative cover is provided with a second guide groove, and the snap-fit ​​structure is slidably engaged in the second guide groove; the snap-fit ​​structure presses against the target end of the second guide groove under the elastic force of the elastic member, so as to press the decorative cover onto the cavity wall of the accommodating cavity.

[0016] In one embodiment, the second guide groove extends through the decorative cover along the groove depth direction, and the second guide groove is connected to the outside.

[0017] In one embodiment, the snap-fit ​​structure includes an actuating part and a fastening part, the actuating part and the fastening part being arranged along the groove depth direction of the second guide groove, and the actuating part being located on the side of the fastening part facing outward;

[0018] When the fastening part presses against the target end of the second guide groove under the elastic force of the elastic member, there is a second preset distance between the actuating part and the target end.

[0019] In one embodiment, the receiving cavity is formed on the first end face of the bottom cover, and the first end face faces away from the inner cavity of the filter bottle; the outer peripheral side of the decorative cover is provided with a limiting flange, and the limiting flange abuts against the first end face.

[0020] In an embodiment, the outer side wall of the filter bottle is provided with at least two first locking channels arranged in a circumferential interval, the bottom cover is provided with at least two second locking channels arranged in a circumferential interval, and the other ends of the at least two second locking channels are opposite to the at least two first locking channels one by one; the filter core shell comprises at least two locks, and the lock tongue structures of the at least two locks are correspondingly and elastically fitted in the at least two second locking channels and the at least two first locking channels under the elastic force of the elastic member.

[0021] The utility model discloses still provide a kind of filter core assembly, the filter core assembly includes filter core body and as described above filter core shell, the filter core body is arranged in the inner cavity of the filter bottle.

[0022] The utility model discloses still provide a kind of water purification equipment, the water purification equipment includes as described above filter core assembly.

[0023] In the technical scheme of the utility model, the bottom cover is installed in the mounting port of the filter bottle, and the decorative cover is installed in the accommodating cavity of the bottom cover. The elastic member can be used to drive the lock, so that the buckle structure of the lock can press the decorative cover against the cavity wall of the accommodating cavity, and the lock tongue structure of the lock can be sequentially and elastically fitted in the second locking through hole of the bottom cover and the first locking through hole of the filter bottle. Therefore, the connection and fixation between the filter bottle, the bottom cover and the decorative cover are achieved in a convenient and easy-to-operate manner. The connection mode between the bottom cover and the filter bottle is simplified, the assembly and disassembly difficulty of the bottom cover is reduced, the assembly and disassembly speed of the bottom cover is improved, the labor and time cost required for replacing the filter core is reduced, the maintenance efficiency of the water purification equipment is improved, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0025] Figure 1 The utility model provides a whole exploded structural schematic diagram of filter core shell one embodiment;

[0026] Figure 2 The utility model provides a whole cross section structural schematic diagram of filter core shell one embodiment;

[0027] Figure 3 The utility model provides the structure schematic diagram corresponding to first assembly step in filter core shell one embodiment;

[0028] Figure 4 The structure schematic view corresponding to the second assembly step in one embodiment of the filter core shell provided by the utility model;

[0029] Figure 5 The structure schematic view corresponding to the third assembly step in one embodiment of the filter core shell provided by the utility model;

[0030] Figure 6 The structure schematic view corresponding to the fourth assembly step in one embodiment of the filter core shell provided by the utility model;

[0031] Figure 7 The structure schematic view corresponding to the fifth assembly step in one embodiment of the filter core shell provided by the utility model.

[0032] Explanation of reference numerals:

[0033] 100, filter core body; 200, first preset interval; 300, second preset interval;

[0034] 1, filter bottle; 11, mounting port; 12, inner cavity; 13, first locking channel;

[0035] 2, bottom cover; 21, accommodating concave cavity; 22, second locking channel; 23, first guide groove; 24, reinforcing rib; 25, first end face;

[0036] 3, decorative cover; 31, second guide groove; 32, limiting flange;

[0037] 4, elastic piece;

[0038] 5, lock catch; 51, buckle structure; 52, lock tongue structure; 53, boss structure; 511, actuating part; 512, buckling part.

[0039] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0041] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain posture, if the certain posture changes, the directionality indication also changes accordingly.

[0042] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0043] The existing composite filter element assembly integrates the front filter element, the rear filter element and the reverse osmosis filter element in the same filter bottle to reduce the space occupied by the water purification equipment. The service life of the front filter element and the rear filter element is usually shorter than that of the reverse osmosis filter element, so when replacing the filter element, only the front filter element and the rear filter element can be replaced, and the reverse osmosis filter element does not need to be replaced.

[0044] To realize the above functions, the existing filter element assembly attempts to set a detachable bottom cover at the bottom of the filter bottle, so that the front filter element and the rear filter element can be replaced separately by opening the bottom cover, without the need to remove all the filter elements in the filter bottle as a whole after disassembling the end cover at the top of the filter bottle.

[0045] However, the connection structure between the bottom cover of the existing filter element assembly and the filter bottle is relatively complex, and the complexity of the structure causes inconvenience in the assembly and disassembly process, which leads to the fact that the replacement operation of the filter element needs to consume more time and is prone to errors, thereby affecting the maintenance efficiency of the water purification equipment and the user experience is not good.

[0046] Based on the above problems, the utility model provides a filter element shell, which aims to simplify the connection mode between the bottom cover and the filter bottle, improve the assembly and disassembly efficiency, and reduce the replacement cost of the filter element.

[0047] Please refer to Figures 1 to 7 The filter element shell provided by the embodiments of the utility model comprises:

[0048] The filter bottle 1 is provided with a mounting port 11 at the bottom thereof, the mounting port 11 being in communication with an inner cavity 12 of the filter bottle 1; a first lock connection channel 13 is arranged on the outer sidewall of the filter bottle 1, and the first lock connection channel 13 is in communication with the mounting port 11;

[0049] The bottom cover 2 is detachably mounted in the mounting port 11; the bottom cover 2 is provided with a receiving cavity 21 and a second lock connection channel 22, the receiving cavity 21 faces away from the inner cavity 12 of the filter bottle 1, one end of the second lock connection channel 22 is in communication with the receiving cavity 21, and the other end of the second lock connection channel 22 is opposite to the first lock connection channel 13;

[0050] The decorative cover 3 is detachably mounted in the receiving cavity 21;

[0051] The elastic member 4 has a first end connected to the cavity wall of the receiving cavity 21;

[0052] The lock catch 5 is connected to a second end of the elastic member 4; the lock catch 5 has a clasp structure 51 and a lock tongue structure 52, the clasp structure 51 is pushed against the cavity wall of the receiving cavity 21 under the elastic force of the elastic member 4, and the lock tongue structure 52 is sequentially arranged in the second lock connection channel 22 and the first lock connection channel 13 under the elastic force of the elastic member 4.

[0053] In the embodiment, the inner cavity 12 of the filter bottle 1 is used to accommodate a filter core body 100, the filter core body 100 can include different types of filter cores, such as reverse osmosis membrane filter cores, pre-filter cores and post-filter cores, etc., these filter cores jointly act to filter, separate and purify raw water supplied into the filter bottle 1, and finally produce pure water meeting the use standard. In the filter core body 100, the pre-filter core and the post-filter core usually have a relatively short service life due to their functional characteristics, when the service life ends, the user can conveniently take out and replace the pre-filter core and the post-filter core from the inside of the filter bottle 1 through the mounting port 11 of the filter bottle 1.

[0054] The filter bottle 1 can be provided as a cylindrical structure as shown in Figure 1 The mounting port 11 is arranged on the bottom end face of the filter bottle 1, and the first lock connection channel 13 is arranged on the outer cylindrical surface of the filter bottle 1 and extends to the mounting port 11 in the radial direction.

[0055] The bottom cover 2 can be configured as a cylindrical structure adapted to the mounting port 11. The receiving cavity 21 can be disposed on the side end face of the bottom cover 2 facing away from the inner cavity 12 of the filter bottle 1. The second locking channel 22 can be formed on the outer cylindrical surface of the bottom cover 2 and extend radially to the receiving cavity 21. The outward end of the second locking channel 22 is opposite to the inward end of the first locking channel 13. After the bottom cover 2 is inserted into the mounting port 11, the bottom cover 2 can form a sealing cap on the bottom of the filter bottle 1, thereby cooperating with the end cap on the top of the filter bottle 1 to encapsulate the filter element body 100 inside the filter bottle 1. Preferably, the outer peripheral side of the bottom cover 2 is provided with a sealing structure, which is used to seal with the side wall of the mounting port 11 to prevent external impurities from entering the inner cavity 12 of the filter bottle 1 through the gap between the bottom cover 2 and the mounting port 11.

[0056] Lock 5 can be set as follows Figure 1 The L-shaped structure shown has two mutually perpendicular parts on the latch 5 that constitute a latch structure 51 and a latching tongue structure 52, respectively. The latch structure 51 can extend in a direction parallel to the axial direction of the bottom cover 2, and the latching tongue structure 52 can extend radially along the bottom cover 2 and toward the second locking channel 22 and the first locking channel 13.

[0057] The first end of the elastic element 4 can be directly connected to the cavity wall of the receiving cavity 21, or it can be connected to a corresponding structure provided on the cavity wall of the receiving cavity 21; the second end of the elastic element 4 can be directly connected to the latch 5, or it can be connected to a corresponding structure provided on the latch 5. In practical applications, it is only necessary to ensure that the elastic force applied by the elastic element 4 to the latch 5 has a component force along the radial direction of the bottom cover 2. The specific connection form between the elastic element 4 and the receiving cavity 21 and the latch 5 is not limited here. Among them, the elastic element 4 can be a spring, an elastic washer, etc.

[0058] The decorative cover 3 can be configured as a column structure that is compatible with the receiving cavity 21. After the decorative cover 3 is installed into the receiving cavity 21, the decorative cover 3 can seal the receiving cavity 21, prevent the latch 5 and elastic element 4 in the receiving cavity 21 from being exposed too much, and can also serve as a decoration on the side of the bottom cover 2 facing outward. At least a portion of the decorative cover 3 is located between the cavity wall of the receiving cavity 21 and the snap-fit ​​structure 51. When the elastic member 4 applies an elastic force to the snap-fit ​​5, the snap-fit ​​structure 51 can press the aforementioned portion of the decorative cover 3 onto the cavity wall of the receiving cavity 21 under the elastic force, thereby fixing the decorative cover 3 to the bottom cover 2. During the process of the elastic member 4 driving the snap-fit ​​structure 51 to complete the above-mentioned pressing and fixing operation, the locking tongue structure 52 can also sequentially pass through and cooperate with the second locking channel 22 and the first locking channel 13 under the elastic force applied by the elastic member 4, thereby simultaneously fixing the bottom cover 2 to the filter bottle 1, and thus fixing the filter bottle 1, the bottom cover 2, and the decorative cover 3.

[0059] Based on the above settings, in the actual assembly process, as shown in Figures 3 to 7 The lock catch 5 and the elastic member 4 are first installed in the accommodating recess 21 of the bottom cover 2, the locking tongue structure 52 of the lock catch 5 is driven by the elastic force of the elastic member 4 to pass through the second lock through hole and extend outward, the decorative cover 3 is then installed in the accommodating recess 21 from top to bottom, the corresponding part of the decorative cover 3 is clamped between the cavity wall of the accommodating recess 21 and the buckle structure 51 of the lock catch 5, the buckle structure 51 can press the corresponding part of the decorative cover 3 on the cavity wall of the accommodating recess 21 under the elastic force of the elastic member 4, thereby realizing the fixation between the decorative cover 3 and the bottom cover 2, and then the assembled bottom cover 2 and decorative cover 3 are installed in the mounting port 11 of the filter bottle 1 from top to bottom, in this process, the lock catch 5 is driven to move inward against the elastic force of the elastic member 4, so that the locking tongue structure 52 is retracted inward to the outside wall of the bottom cover 2, ensuring that the bottom cover 2 can be smoothly installed in the mounting port 11 without interference of the locking tongue structure 52, when the bottom cover 2 moves downward to the position where the second lock through hole is opposite to the first lock through hole, the restriction on the lock catch 5 is released, the lock catch 5 is driven to move outward again under the elastic force of the elastic member 4, so that the buckle structure 51 again presses the corresponding part of the decorative cover 3 on the cavity wall of the accommodating recess 21, and the locking tongue structure 52 is sequentially threaded and fitted in the second lock through hole and the first lock through hole, thereby realizing the assembly and fixation among the filter bottle 1, the bottom cover 2 and the decorative cover 3. When disassembly is needed, only the reverse operation according to the above idea is needed, which will not be described here.

[0060] It can be seen that the filter core shell provided in the embodiment can drive the lock catch 5 by the elastic force of the elastic member 4, so that the buckle structure 51 of the lock catch 5 can press the decorative cover 3 on the cavity wall of the accommodating recess 21, and the locking tongue structure 52 of the lock catch 5 can be sequentially threaded and fitted in the second lock through hole of the bottom cover 2 and the first lock through hole of the filter bottle 1, thereby realizing the connection and fixation among the filter bottle 1, the bottom cover 2 and the decorative cover 3 in a convenient and easy-to-operate manner. The scheme simplifies the connection mode between the bottom cover 2 and the filter bottle 1, reduces the assembly and disassembly difficulty of the bottom cover 2, improves the assembly and disassembly speed of the bottom cover 2, thereby reducing the labor and time cost required for replacing the filter core, improving the maintenance efficiency of the water purification equipment, and improving the user experience.

[0061] In an embodiment, referring to Figures 1 to 3 , the accommodating recess 21 is provided with a first guide groove 23, the first end of the first guide groove 23 is communicated with the second lock through channel 22, the first end of the elastic member 4 is connected to the second end of the first guide groove 23, and the locking tongue structure 52 is slidingly fitted in the first guide groove 23 under the elastic force of the elastic member 4.

[0062] Illustrationly, the first guide groove 23 extends horizontally along the X-axis, the latch structure 52 extends horizontally along the X-axis, and the snap-fit ​​structure 51 extends along the Z-axis. The latch structure 52 slides in the first guide groove 23 along the X-axis. Based on the limiting fit between the latch structure 52 and the first guide groove 23, the snap-fit ​​5 can slide along the X-axis under the elastic force of the elastic element 4, so as to drive the snap-fit ​​structure 51 to press the corresponding part of the decorative cover 3 onto the cavity wall of the receiving cavity 21, and drive the latch structure 52 to sequentially pass through and fit into the second locking through hole and the first locking through hole along the X-axis.

[0063] In this embodiment, by setting the first guide groove 23, on the one hand, it can provide a guiding function for the latch 5, so that the latch 5 can slide along a preset path under the elastic force of the elastic member 4. On the other hand, the end of the first guide groove 23 can provide an installation base for the first end of the elastic member 4.

[0064] In one embodiment, refer to Figures 1 to 3 A number of reinforcing ribs 24 are protruding on the cavity wall of the accommodating cavity 21, and the number of reinforcing ribs 24 surround to form the first guide groove 23.

[0065] By providing reinforcing ribs 24 on the cavity wall of the accommodating cavity 21, the reinforcing ribs 24 can strengthen the bottom cover 2 while forming the first guide groove 23, thereby improving the structural strength of the bottom cover 2.

[0066] In one embodiment, refer to Figure 1 and Figure 2 The latch 5 also has a boss structure 53, which extends along the width of the first guide groove 23. The boss structure 53 has a first sidewall and a second sidewall that are arranged opposite to each other. The first sidewall is slidably fitted on the reinforcing rib 24. The decorative cover 3 is mounted on the second sidewall. There is a first preset distance 200 between the decorative cover 3 and the latch structure 52.

[0067] Illustratively, the boss structure 53 can be provided as two and distributed on both sides of the lock catch 5, each boss structure 53 is located at the junction of the buckle structure 51 and the latch structure 52 and extends outward along the Y axis, the lower surface (the first side wall) of each boss structure 53 is respectively slidingly fitted to the upper surface of the reinforcing rib 24 on one side of the first guide groove 23, and the decorative cover 3 is arranged on the upper surface (the second side wall) of the two boss structures 53. Through the sliding fit between the boss structure 53 and the reinforcing rib 24, the movement of the lock catch 5 in the accommodating cavity 21 can be assisted and limited. By arranging the decorative cover 3 on the boss structure 53, on the one hand, the height of the boss structure 53 can be used to keep the first preset distance 200 between the decorative cover 3 and the latch structure 52, so as to avoid that the decorative cover 3 directly adheres to the latch structure 52 and affects the normal sliding of the latch structure 52; on the other hand, through the clamping of the decorative cover 3 and the reinforcing rib 24 on the boss structure 53 in the Z axis direction, the limitation of the lock catch 5 in the Z axis direction can be realized.

[0068] In an embodiment, referring to Figures 1 to 4 , the decorative cover 3 is provided with a second guide groove 31, and the buckle structure 51 is slidingly fitted in the second guide groove 31; the buckle structure 51 is pressed against the target end of the second guide groove 31 under the elastic force of the elastic member 4, so as to press the decorative cover 3 against the cavity wall of the accommodating cavity 21.

[0069] Illustratively, the second guide groove 31 extends horizontally along the X axis, the buckle structure 51 extends along the Z axis, and the buckle structure 51 is slidingly fitted in the second guide groove 31 along the X axis; the target end of the second guide groove 31 can refer to any one end or both ends of the second guide groove 31 in the X axis direction; when the buckle structure 51 is pressed against the target end of the second guide groove 31 under the elastic force of the elastic member 4, the buckle structure 51 can push the decorative cover 3 to press against the cavity wall of the accommodating cavity 21, so as to realize the fixation between the decorative cover 3 and the bottom cover 2.

[0070] By providing the second guide groove 31, the lock catch 5 can be guided to slide along a preset path under the elastic force of the elastic member 4, and the buckle structure 51 can be provided with a stable force application point, so as to ensure that the decorative cover 3 can be tightly attached to the cavity wall of the accommodating cavity 21 under the pressing of the buckle structure 51.

[0071] Preferably, the second guide groove 31 in the embodiment can cooperate with the first guide groove 23 in the above-mentioned embodiment to jointly guide the lock catch 5, so as to improve the sliding stability and accuracy of the lock catch 5 relative to the bottom cover 2 and the decorative cover 3.

[0072] In an embodiment, referring to Figures 1 to 4 , the second guide groove 31 penetrates the decorative cover 3 in the groove depth direction, and the second guide groove 31 is in communication with the outside.

[0073] Illustratively, the second guide groove 31 penetrates the decorative cover 3 along the Z axis, and the upper side of the second guide groove 31 is in communication with the outside so as to expose the buckle structure 51, thus facilitating the user to adjust the sliding direction of the buckle structure 51 from the outside. Corresponding to the specific assembly process of the above embodiment, when the assembled bottom cover 2 and the decorative cover 3 are loaded into the mounting port 11 of the filter bottle 1 along the Z axis, the user can conveniently push the lock catch 5 from the outside, so that the lock catch 5 overcomes the elastic force of the elastic member 4 and moves inward along the X axis, so that the lock tongue structure 52 is retracted inward to the outside wall of the bottom cover 2, ensuring that the bottom cover 2 can be smoothly loaded into the mounting port 11 without interference from the lock tongue structure 52; when the bottom cover 2 moves downward along the Z axis to the position where the second lock passage hole is opposite to the first lock passage hole, the user can stop applying force to the lock catch 5, so that the lock catch 5 moves outward again under the elastic force of the elastic member 4, so that the buckle structure 51 again presses the corresponding part of the decorative cover 3 on the cavity wall of the accommodation cavity 21, and at the same time, the lock tongue structure 52 is sequentially fitted into the second lock passage hole and the first lock passage hole.

[0074] In an embodiment, referring to Figure 1 and Figure 2 , the buckle structure 51 comprises an actuating portion 511 and a clamping portion 512, the actuating portion 511 and the clamping portion 512 are arranged along the depth direction of the second guide groove 31, and the actuating portion 511 is located on the side of the clamping portion 512 facing the outside.

[0075] When the clamping portion 512 is pressed against the target end of the second guide groove 31 under the elastic force of the elastic member 4, there is a second preset distance 300 between the actuating portion 511 and the target end.

[0076] Illustratively, the actuating portion 511 and the clamping portion 512 are distributed along the Z axis, the actuating portion 511 is located above the clamping portion 512, the actuating portion 511 is in communication with the outside through the second guide groove 31, and the distance of the actuating portion 511 on the X axis is less than the distance of the clamping portion 512 on the X axis, so as to form a stepped structure; when the actuating portion 511 abuts against the target end of the second guide groove 31 under the elastic force of the elastic member 4, there is still a second preset distance 300 between the actuating portion 511 and the target end, which can facilitate the user to insert his finger from the outside, so that the user can conveniently push the actuating portion 511 to move inward along the X axis, so as to complete the assembly operation between the bottom cover 2 and the filter bottle 1 in the above embodiment.

[0077] In an embodiment, referring to Figures 1 to 4 , the accommodation cavity 21 is provided on the first end face 25 of the bottom cover 2, and the first end face 25 faces away from the inner cavity 12 of the filter bottle 1; the outer peripheral side of the decorative cover 3 is provided with a limiting flange 32, and the limiting flange 32 abuts against the first end face 25.

[0078] Illustratively, the first end surface 25 of the bottom cover 2 can refer to the upper side end surface of the bottom cover 2, and through the abutting fit between the first end surface 25 and the limiting flange 32, the decorative cover 3 can be preliminarily limited in the Z-axis direction during the process of being assembled into the accommodating cavity 21.

[0079] In an embodiment, referring to Figures 1 to 7 , the outer side wall of the filter bottle 1 is provided with at least two first locking channels 13 arranged in a circumferential interval, the bottom cover 2 is provided with at least two second locking channels 22 arranged in a circumferential interval, and the other ends of the at least two second locking channels 22 are respectively opposite to the at least two first locking channels 13; the filter core shell includes at least two locking buckles 5, and the locking tongue structures 52 of the at least two locking buckles 5 are respectively correspondingly and elastically fitted into the at least two second locking channels 22 and the at least two first locking channels 13 under the elastic force of the elastic members 4.

[0080] Specifically, taking the example that the first locking channel 13, the second locking channel 22, the locking buckle 5, and the elastic member 4 are all provided with two, as Figures 3 to 7 shown, the two first locking channels 13, the two second locking channels 22, the two locking buckles 5, and the two elastic members 4 are uniformly arranged in a circumferential interval and distributed on the X-axis; in the actual assembly process, the user can first assemble the two locking buckles 5 and the two elastic members 4 into the accommodating cavity 21 of the bottom cover 2, so that the locking tongue structures 52 of the two locking buckles 5 are elastically fitted into the corresponding second locking holes and respectively protrude outward under the elastic force of the corresponding elastic members 4; then the decorative cover 3 is assembled into the accommodating cavity 21 along the Z-axis, and the two buckle structures 51 can be away from each other on the X-axis under the elastic force of the corresponding elastic members 4, so that the clamping portions 512 of the two buckle structures 51 can be respectively pressed against the two end portions of the second guide groove 31 of the decorative cover 3 to press the decorative cover 3 on the cavity wall of the accommodating cavity 21 from the two directions of the X-axis, thereby realizing the fixation between the decorative cover 3 and the bottom cover 2; then the assembled bottom cover 2 and decorative cover 3 can be assembled into the mounting port 11 of the filter bottle 1 along the Z-axis, and in this process, the user can drive the two locking buckles 5 to move towards each other on the X-axis by pinching the actuating portions 511 of the two buckle structures 51, so that the two locking tongue structures 52 overcome the elastic force and shrink inwardly to the outside of the outer side wall of the bottom cover 2, thereby ensuring that the bottom cover 2 can be smoothly assembled into the mounting port 11 without the interference of the locking tongue structures 52; when the bottom cover 2 moves downwardly along the Z-axis to the position where the second locking hole is opposite to the first locking hole, the user can stop pinching the actuating portions 511 of the two buckle structures 51, so that the two locking buckles 5 move outwardly again under the elastic force of the elastic members 4, thereby causing the clamping portions 512 of the two buckle structures 51 to press against the two end portions of the second guide groove 31 again, and causing the two locking tongue structures 52 to be respectively fitted into the corresponding second locking hole and the corresponding first locking hole, so as to realize the assembly and fixation among the filter bottle 1, the bottom cover 2, and the decorative cover 3.

[0081] The embodiment sets two groups of lock connection structures, and can improve the connection stability of the filter bottle 1, the bottom cover 2 and the decorative cover 3.

[0082] The embodiment of the utility model also provides a filter element assembly, please refer to Figures 1 to 7 The filter element assembly includes a filter element body 100 and the filter element shell in any of the above embodiments, and the filter element body 100 is arranged in the inner cavity 12 of the filter bottle 1.

[0083] In the embodiment, the filter element body 100 can include a reverse osmosis membrane filter element, a pre-filter element and a post-filter element, and the filter element body 100 can filter, separate and purify raw water supplied into the filter bottle 1 to obtain pure water meeting the use requirements. The service life of the pre-filter element and the post-filter element in the filter element body 100 is relatively short, and when the use cycle ends, the pre-filter element and the post-filter element can be individually taken out from the filter bottle 1 through the mounting port 11 and replaced.

[0084] The specific structure of the filter element shell can refer to the above embodiments. Since the filter element assembly in the embodiment adopts all the technical solutions in the above embodiments, it at least has all the beneficial effects brought by the technical solutions in the above embodiments, which will not be repeated here.

[0085] The embodiment of the utility model also provides a water purification equipment, please refer to Figures 1 to 7 The water purification equipment includes the filter element assembly in any of the above embodiments.

[0086] The water purification equipment in the embodiment can be any of a water purifier, a pure drinking machine, a soft water and purification integrated machine, a purification and heating integrated machine and an ice maker. The specific structure of the filter element assembly can refer to the above embodiments. Since the water purification equipment in the embodiment adopts all the technical solutions in the above embodiments, it at least has all the beneficial effects brought by the technical solutions in the above embodiments, which will not be repeated here.

[0087] The above is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A filter cartridge housing characterized by, The filter core shell comprises: A filter bottle, a bottom of the filter bottle is provided with a mounting port, the mounting port is communicated with an inner cavity of the filter bottle, an outer side wall of the filter bottle is provided with a first lock connection channel, the first lock connection channel is communicated with the mounting port; A bottom cover is detachably mounted in the mounting port, the bottom cover is provided with a containing recess and a second lock connection channel, the containing recess faces away from the inner cavity of the filter bottle, one end of the second lock connection channel is communicated with the containing recess, the other end of the second lock connection channel is opposite to the first lock connection channel; A decorative cover is detachably mounted in the containing recess; An elastic member, a first end of the elastic member is connected with a cavity wall of the containing recess; A lock catch is connected with a second end of the elastic member, the lock catch has a buckle structure and a lock tongue structure, the buckle structure is pushed by the elastic member to press the decorative cover against the cavity wall of the containing recess, the lock tongue structure is sequentially fitted in the second lock connection channel and the first lock connection channel under the elastic force of the elastic member.

2. The filter cartridge housing of claim 1 wherein, The containing recess is provided with a first guide groove, a first end of the first guide groove is communicated with the second lock connection channel, the first end of the elastic member is connected with a second end of the first guide groove, the lock tongue structure is slidingly fitted in the first guide groove under the elastic force of the elastic member.

3. The filter cartridge housing of claim 2 wherein, The cavity wall of the containing recess is provided with a plurality of reinforcing ribs, the reinforcing ribs are surrounded to form the first guide groove.

4. The filter cartridge housing of claim 3 wherein, The lock catch further has a boss structure, the boss structure extends along a groove width direction of the first guide groove, the boss structure has oppositely arranged first and second side walls, the first side wall is slidingly fitted on the reinforcing rib, the decorative cover is arranged on the second side wall, and a first preset distance exists between the decorative cover and the lock tongue structure.

5. The filter cartridge housing of claim 1 wherein, The decorative cover is provided with a second guide groove, the buckle structure is slidingly fitted in the second guide groove, and the buckle structure is pressed against a target end of the second guide groove under the elastic force of the elastic member to press the decorative cover against the cavity wall of the containing recess.

6. The filter cartridge housing of claim 5 wherein, The second guide groove penetrates the decorative cover along a groove depth direction, and the second guide groove is communicated with the outside.

7. The filter cartridge housing of claim 6 wherein, The buckle structure comprises an actuating part and a buckling part, the actuating part and the buckling part are arranged along a groove depth direction of the second guide groove, and the actuating part is located on one side of the buckling part facing the outside; When the buckling part is pressed against the target end of the second guide groove under the elastic force of the elastic member, a second preset distance exists between the actuating part and the target end.

8. The filter cartridge housing of any of claims 1-7, wherein, The containing recess is opened in a first end face of the bottom cover, the first end face faces away from the inner cavity of the filter bottle, an outer peripheral side of the decorative cover is provided with a limiting flange, and the limiting flange is abutted with the first end face. And / or, the outer side wall of the filter bottle is provided with at least two first locking channels arranged in a circumferential interval, the bottom cover is provided with at least two second locking channels arranged in a circumferential interval, and the other ends of the at least two second locking channels are opposite to the at least two first locking channels one by one; the filter core shell comprises at least two locking buckles, and the locking tongue structures of the at least two locking buckles are correspondingly and elastically matched in the at least two second locking channels and the at least two first locking channels under the elastic force of the elastic members.

9. A filter cartridge assembly characterized by, The filter core assembly comprises a filter core body and the filter core shell as claimed in any one of claims 1 to 8, and the filter core body is arranged in the inner cavity of the filter bottle.

10. A water purification apparatus characterized by comprising: The water purification equipment comprises the filter core assembly as claimed in claim 9.

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