Filter element structure

Abstract

The utility model discloses a filter element structure, which relates to the technical field of water purifiers and comprises a filter element assembly and a shell, the filter element assembly is inserted into the shell, a plurality of locking mechanisms are arranged on the filter element assembly, and clamping grooves in one-to-one correspondence with the locking mechanisms are arranged on the shell; the locking mechanism moves along with the filter element assembly, the locking mechanism can be switched between a locking state and an unlocking state through movement of the filter element assembly, and in the locking state, the locking mechanism is connected with the clamping groove in a clamped mode so that the filter element assembly can be locked in the shell; in the unlocking state, the locking mechanism is separated from the clamping groove, so that the filter element assembly is separated from the shell. According to the utility model, the filter element assembly can be conveniently mounted or replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purifier technical field, concretely relates to a filter core structure. BACKGROUND

[0002] The filter core is the core component in the water purifier, and its main function is to filter impurities in water to ensure that the water quality reaches a certain cleanliness. The filter core must be replaced after a period of use, otherwise the service life of the machine will be damaged, and if the filter core is blocked, the water purification effect will be weakened.

[0003] In the related art, the filter core is installed on the rack of the water purifier in a threaded connection manner. During assembly, it may be over-tightened, making it difficult to disassemble the subsequent filter core. When the user disassembles it, a special tool is needed to loosen the filter core, causing inconvenience in replacing the filter core. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model provides a filter core structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A filter core structure, comprising a filter core assembly and a shell, the filter core assembly is inserted into the shell, characterized in that a plurality of locking mechanisms are arranged on the filter core assembly, and a clamping groove corresponding to the locking mechanism is arranged on the shell; the locking mechanism moves with the filter core assembly, and the locking mechanism can be switched between the locked state and the unlocked state through the movement of the filter core assembly. In the locked state, the locking mechanism is clamped with the clamping groove to lock the filter core assembly in the shell. In the unlocked state, the locking mechanism is separated from the clamping groove to separate the filter core assembly from the shell.

[0007] The application has the following technical effects: by arranging the locking mechanism on the filter core assembly and the clamping groove on the shell, the filter core assembly can be fixed inside the shell by the cooperation of the locking mechanism and the clamping groove. Since the locking mechanism can move with the filter core assembly, the filter core assembly can be conveniently installed or replaced through simple rotation and insertion action, greatly reducing the difficulty of replacing the filter core assembly.

[0008] Optionally, the filter element assembly comprises a filter element housing and a filter element, the filter element and the locking mechanism are arranged in the filter element housing; a wall surface of the filter element housing is formed with a first opening corresponding to the clamping groove one by one; the locking mechanism comprises a mounting seat, an elastic member and a lock tongue, the lock tongue is arranged at the first opening, the mounting seat is arranged in the filter element housing, and the lock tongue and the mounting seat are connected by the elastic member; in the locked state, the lock tongue is inserted into the clamping groove through the first opening.

[0009] Optionally, the elastic member is arranged as a spring, and the spring extends along the moving direction of the lock tongue.

[0010] Optionally, an end of the filter element assembly outside the shell is provided with a knob, the knob comprises a knob member and a sleeve sleeved outside the filter element assembly, a wall surface of the sleeve is formed with a second opening corresponding to the first opening one by one, and the lock tongue can be clamped with the clamping groove through the first opening and the second opening.

[0011] Optionally, the knob is movably arranged with the filter element assembly, and the sleeve can rotate relative to the filter element assembly to make the second opening on the sleeve coincide with or be staggered with the first opening of the filter element assembly.

[0012] Optionally, an outer peripheral surface of the lock tongue is provided with a first inclined surface matched with an inner wall surface of the sleeve, with the rotation of the sleeve, the first opening is staggered with the second opening, the inner wall of the sleeve is in contact with the first inclined surface to push the lock tongue to retract into the filter element housing; in the unlocked state, the lock tongue is in abutment with the inner wall of the sleeve, and the elastic member is in a compressed state.

[0013] Optionally, the knob is fixedly arranged with the filter element assembly, the filter element assembly can rotate relative to the shell to drive the locking mechanism to be clamped with or separated from the clamping groove.

[0014] Optionally, an outer peripheral surface of the lock tongue is provided with a second inclined surface matched with an inner wall surface of the shell, with the rotation of the filter element assembly, the inner wall of the shell is in contact with the second inclined surface to push the lock tongue to retract into the filter element housing.

[0015] An end of the lock tongue towards the inside of the shell is provided with a third inclined surface matched with an inner wall surface of the shell, with the insertion of the filter element assembly into the shell, the inner wall of the shell is in contact with the third inclined surface to push the lock tongue to retract into the filter element housing.

[0016] In the unlocked state, the lock tongue is in abutment with the inner wall of the shell, and the elastic member is in a compressed state.

[0017] Optionally, the filter element assembly is provided with three locking mechanisms, which are circumferentially and equally spaced around the central axis of the filter element assembly.

[0018] Optionally, the filter element assembly is provided with two locking mechanisms, which are symmetrically arranged on both sides of the filter element assembly.

[0019] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an assembly diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the filter element assembly in one embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional view of a filter element assembly in one embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the locking tongue of the filter element assembly in one embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the filter element assembly in another embodiment of the present invention.

[0027] Figure 7 This is a cross-sectional view of the filter element assembly in another embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the locking tongue of the filter element assembly in another embodiment of the present invention.

[0029] Among them, 10 is the filter element assembly; 101 is the first opening; 11 is the locking mechanism; 111 is the mounting base; 112 is the elastic element; 113 is the locking tongue; 1131 is the first inclined surface; 1132 is the second inclined surface; 1133 is the third inclined surface; 114 is the partition; 12 is the knob; 121 is the sleeve; 122 is the second opening; 20 is the housing; and 21 is the engaging groove. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0031] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this patent. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0032] In related technologies, the filter cartridge is installed on the water purifier frame using a threaded connection. During assembly, it may be over-tightened, making subsequent filter cartridge removal difficult. Replacing the water purifier filter cartridge is an important step in maintaining water purity and extending the lifespan of the water purifier. When users attempt to disassemble and replace the filter cartridge, this type of filter cartridge structure is difficult to remove, requiring the use of special tools to loosen it, which causes inconvenience during replacement.

[0033] In view of this, such as Figures 1-2 As shown, an embodiment of this utility model provides a filter element structure, including a filter element assembly 10 and a housing 20. The filter element assembly 10 is inserted into the housing 20, and a plurality of locking mechanisms 11 are provided on the filter element assembly 10. The housing 20 is provided with engaging grooves 21 corresponding to the locking mechanisms 11. The locking mechanisms 11 move with the filter element assembly 10. Through the movement of the filter element assembly 10, the locking mechanisms 11 can switch between a locked state and an unlocked state. In the locked state, the locking mechanisms 11 engage with the engaging grooves 21 to lock the filter element assembly 10 inside the housing 20. In the unlocked state, the locking mechanisms 11 separate from the engaging grooves 21 to allow the filter element assembly 10 to detach from the housing 20.

[0034] like Figure 3 , 4As shown in Figures 6 and 7, the filter element assembly 10 includes a filter element housing 13 and a filter element 14. The filter element housing 13 forms an installation chamber, which is divided into a first installation chamber and a second installation chamber along the axial direction of the filter element assembly 10. The filter element 14 is disposed in the first installation chamber, and the locking mechanism 11 is disposed in the second installation chamber. The wall surface of the second installation chamber of the filter element housing 13 has a first opening 101 corresponding to the engaging groove 21. The locking mechanism 11 includes a mounting base 111, an elastic element 112, and a locking tongue 113. The locking tongue 113 is disposed at the first opening 101, and the mounting base 111 is disposed in the second installation chamber. The elastic element 112 connects the locking tongue 113 and the mounting base 111. In the locked state, the locking tongue 113 passes through the first opening 101 and is inserted into the engaging groove 21, and the elastic element 112 is in a natural state. In this embodiment, the elastic element 112 is a spring; in other alternative embodiments, the elastic element is a sheet.

[0035] In some embodiments, the filter element assembly 10 is cylindrical in shape, and a knob 12 is provided at one end of the filter element assembly 10 facing the outside of the housing 20. The knob 12 includes a knob element and a sleeve 121 sleeved on the outside of the filter element assembly 10. The wall surface of the sleeve 121 is formed with a second opening 122 corresponding to the first opening 101. The locking tongue 113 can pass through the first opening 101 and the second opening 122 and engage with the locking groove 21.

[0036] like Figures 3-5 As shown, the knob 12 is movably connected to the filter element assembly 10, and a hinge shaft is provided at the center of the second mounting cavity to be hinged to the knob 12; under the action of external force, the sleeve 121 can rotate relative to the filter element assembly 10 so that the second opening 122 on the sleeve 121 coincides with or is offset from the first opening 101 of the filter element assembly 10.

[0037] The outer peripheral surface of the latch 113 is provided with a first inclined surface 1131 that mates with the inner wall surface of the sleeve 121. The first inclined surface 1131 is used to convert the circumferential movement of the sleeve 121 into the linear movement of the latch 113. As the sleeve 121 rotates, the first opening 101 and the second opening 122 are misaligned, and the inner wall of the sleeve 121 contacts the first inclined surface 1131, forcing the latch 113 to retract into the second mounting cavity. In the unlocked state, the latch 113 abuts against the inner wall of the sleeve 121, and the elastic element 112 is in a compressed state.

[0038] In this embodiment, the number of locking mechanisms 11 is not specifically limited and can be two, three, or more. As an optional embodiment, the filter element assembly 10 is provided with three locking mechanisms 11, which are equally spaced around the central axis of the filter element assembly 10, that is, one locking mechanism 11 is arranged radially at every 120 degrees from the center of the filter element assembly 10.

[0039] In this embodiment, the rotation of knob 12 controls the three locking mechanisms 11, with their locking tongues 113, to retract into the second mounting cavity of the filter element assembly 10. During installation, first rotate knob 12 to retract the three locking mechanisms 11, with their locking tongues 113, into the second mounting cavity of the filter element assembly 10 (i.e., the first opening 101 and the second opening 122 are misaligned, and the locking tongues 113 abut against the inner wall of the sleeve 121). Then, insert the filter element assembly 10 into the housing 20. After insertion, align the first opening 101 with the engaging groove 21 on the housing 20. At this point, rotate knob 12 to pop out the three locking mechanisms 11, with their locking tongues 113, and insert them into the engaging groove 21 (i.e., the first opening 101 and the second opening 122 overlap with the engaging groove 21). At this point, the filter element assembly 10 is locked in the housing 20. During disassembly, first turn the knob 12 so that the locking tongues 113 of the three locking mechanisms 11 are retracted into the second mounting cavity of the filter element assembly 10 (that is, the first opening 101 and the second opening 122 are misaligned, and the locking tongues 113 abut against the inner wall of the sleeve 121). Then, the filter element assembly can be taken out of the housing 20 by using the handle on the knob 12. This utility model can conveniently install or replace the filter element assembly, reducing the difficulty of replacing the filter element assembly for users.

[0040] In other embodiments, such as Figures 6-8 As shown, the knob 12 is fixedly installed with the filter element assembly 10. Under the action of external force, the filter element assembly 10 can rotate relative to the housing 20, and drive the locking mechanism 11 to engage or disengage from the locking groove 21.

[0041] The outer peripheral surface of the locking tongue 113 is provided with a second inclined surface 1132 that mates with the inner wall surface of the housing 20. As the filter element assembly 10 rotates, the inner wall of the housing 20 contacts the second inclined surface 1132, forcing the locking tongue 113 to retract into the second mounting cavity. The end of the locking tongue 113 facing the inside of the housing 20 is provided with a third inclined surface 1133 that mates with the inner wall surface of the housing 20. As the filter element assembly 10 is inserted into the housing 20, the inner wall of the housing 20 contacts the third inclined surface 1133, forcing the locking tongue 113 to retract into the second mounting cavity. In the unlocked state, the locking tongue 113 abuts against the inner wall of the housing 20, and the elastic element 112 is in a compressed state.

[0042] In this embodiment, the number of locking mechanisms 11 is not specifically limited and can be two, three, or more. As an optional embodiment, the filter element assembly 10 is provided with two locking mechanisms 11, which are symmetrically arranged on both sides of the filter element assembly 10.

[0043] In this embodiment, the knob 12 is fixedly connected to the filter element assembly 10. Rotating the knob 12 will directly rotate the filter element assembly 10, and the first opening 101 and the second opening 122 will always coincide. During installation, when the filter element assembly 10 is inserted into the housing 20, the third inclined surface 1133 of the locking tongue 113 in the locking mechanism 11 contacts the inner wall of the housing 20, forcing the locking tongue 113 to retract into the second mounting cavity; therefore, the filter element assembly 10 can be smoothly inserted into the housing 20. After insertion, the first opening 101 is aligned with the engaging groove 21 on the housing 20. Under the action of the elastic element 112, the locking tongue 113 in the locking mechanism 11 pops out into the engaging groove 21 of the housing 20, and the filter element assembly 10 is locked in the housing 20. During disassembly, first turn knob 12. The second inclined surface 1132 of the locking tongue 113 in the locking mechanism 11 contacts the inner wall of the housing 20, forcing the locking tongue 113 to retract into the second mounting cavity. Therefore, the filter element assembly 10 can be smoothly removed from the housing 20. At this time, the filter element assembly 10 can be pulled out by the handle. This utility model can conveniently install or replace the filter element assembly, reducing the difficulty of filter element replacement for users.

[0044] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A filter element structure, comprising a filter element assembly (10) and a housing (20), wherein the filter element assembly (10) is inserted into the housing (20), characterized in that, The filter element assembly (10) is provided with a plurality of locking mechanisms (11), and the housing (20) is provided with a locking groove (21) corresponding to each locking mechanism (11). The locking mechanism (11) moves with the filter element assembly (10). Through the movement of the filter element assembly (10), the locking mechanism (11) can switch between a locked state and an unlocked state. In the locked state, the locking mechanism (11) engages with the locking groove (21) to lock the filter element assembly (10) inside the housing (20). In the unlocked state, the locking mechanism (11) separates from the locking groove (21) to release the filter element assembly (10) from the housing (20).

2. The filter element structure according to claim 1, characterized in that, The filter element assembly (10) includes a filter element housing (13) and a filter element (14). The filter element (14) and the locking mechanism (11) are both disposed inside the filter element housing (13). The wall surface of the filter element housing (13) has a first opening (101) corresponding to the engaging groove (21). The locking mechanism (11) includes a mounting base (111), an elastic element (112), and a locking tongue (113). The locking tongue (113) is disposed at the first opening (101). The mounting base (111) is disposed inside the filter element housing (13). The elastic element (112) is connected between the locking tongue (113) and the mounting base (111). In the locked state, the locking tongue (113) passes through the first opening (101) and is inserted into the engaging groove (21).

3. The filter element structure according to claim 2, characterized in that, The elastic element (112) is configured as a spring, which extends along the moving direction of the latch (113).

4. The filter element structure according to claim 2, characterized in that, The filter element assembly (10) is provided with a knob (12) at the end facing out of the housing (20). The knob (12) includes a knob element and a sleeve (121) sleeved on the outside of the filter element assembly (10). The wall surface of the sleeve (121) is formed with a second opening (122) corresponding to the first opening (101). The locking tongue (113) can pass through the first opening (101) and the second opening (122) and engage with the locking groove (21).

5. The filter element structure according to claim 4, characterized in that, The knob (12) is movably connected to the filter element assembly (10), and the sleeve (121) is rotatable relative to the filter element assembly (10) so that the second opening (122) on the sleeve (121) coincides with or is offset from the first opening (101) of the filter element assembly (10).

6. The filter element structure according to claim 5, characterized in that, The outer peripheral surface of the latch (113) is provided with a first inclined surface (1131) that cooperates with the inner wall surface of the sleeve (121). As the sleeve (121) rotates, the first opening (101) and the second opening (122) are misaligned. The inner wall of the sleeve (121) contacts the first inclined surface (1131) and pushes the latch (113) to retract into the filter element housing (13). In the unlocked state, the latch (113) abuts against the inner wall of the sleeve (121), and the elastic element (112) is in a compressed state.

7. The filter element structure according to claim 4, characterized in that, The knob (12) is fixedly disposed with the filter element assembly (10). The filter element assembly (10) can rotate relative to the housing (20) and drive the locking mechanism (11) to engage or disengage from the locking groove (21).

8. The filter element structure according to claim 7, characterized in that, The outer peripheral surface of the latch (113) is provided with a second inclined surface (1132) that cooperates with the inner wall surface of the housing (20). As the filter element assembly (10) rotates, the inner wall of the housing (20) contacts the second inclined surface (1132) and pushes the latch (113) to retract into the filter element housing (13). The locking tongue (113) is provided with a third inclined surface (1133) at one end facing the inside of the housing (20) to cooperate with the inner wall surface of the housing (20). When the filter element assembly (10) is inserted into the housing (20), the inner wall of the housing (20) contacts the third inclined surface (1133) and pushes the locking tongue (113) to retract into the filter element housing (13). In the unlocked state, the latch (113) abuts against the inner wall of the housing (20), and the elastic element (112) is in a compressed state.

9. The filter element structure according to any one of claims 1-8, characterized in that, The filter element assembly (10) is provided with three locking mechanisms (11), which are evenly distributed around the central axis of the filter element assembly (10).

10. The filter element structure according to any one of claims 1-8, characterized in that, The filter element assembly (10) is provided with two locking mechanisms (11), which are symmetrically arranged on both sides of the filter element assembly (10).

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