Water purifier filter element convenient to disassemble and assemble

Abstract

The water purifier filter element convenient to disassemble and assemble comprises a shell, the first end of the shell is provided with an opening, the outer wall of the shell is provided with a first screwing structure, the first screwing structure is provided with at least one convex positioning part, and the second end of the shell is communicated with a water inlet end and a water outlet end; an opening is formed in the front end of the end cover body, the end cover body is movably arranged at the first end of the shell in a sleeving mode, a second screwing structure is arranged on the inner wall of the front end of the end cover body, the second screwing structure and the first screwing structure are detachably and rotationally connected, the second screwing structure is provided with a protruding part and a positioning wall, and the end cover body and the first end of the shell are screwed tightly; and the positioning part passes through the convex part and is limited between the convex part and the positioning wall. According to the water purifier filter element convenient to disassemble and assemble, the bulge part prevents the end cover body from being unscrewed relative to the shell, so that the end cover body and the shell are prevented from being loosened, and the reliable sealing between the end cover body and the shell is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core technical field, especially a kind of water purifier filter core convenient to disassemble. BACKGROUND

[0002] Water purifier is used to purify drinking water equipment, the drinking water that flows through water purifier is filtered.Water purifier includes body and water purifier filter core, wherein, water purifier filter core is used to purify the core part of drinking water, when filter core is used for a period of time, the inside of filter core is easy to produce blockage, to guarantee the water inlet effect needs to replace filter core.In prior art, water purifier filter core includes shell, filter core body and end cap, shell has opening to put filter core body into its inside, end cap is usually screwed on the shell to cover the opening of shell.However, shell and end cap are not installed in place and loose, it is difficult to ensure the sealing reliable between the two, since filter core exposes end cap part, user usually applies pressure to end cap to rotate torque to take out filter core from water purifier, in the process, it is easy to remove end cap due to misoperation, resulting in shell still connected in water purifier and cannot be smoothly taken out, affect the disassembly and replacement of filter core, use is more inconvenient. SUMMARY

[0003] The utility model aims at solving the technical insufficiency of above-mentioned and designs a kind of water purifier filter core convenient to disassemble, and the protruding part blocks end cap body relative to shell and is unscrewed, prevent end cap body and shell between loose, ensure that the sealing reliable between end cap body and shell.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a kind of water purifier filter core convenient to disassemble, comprising:

[0005] Shell, the first end opening of the shell is provided and the outer wall thereof is provided with a first thread connection structure extending along the circumference thereof, the first thread connection structure is provided with at least one outwardly protruding positioning portion, and the second end of the shell is provided with a water inlet end and a water outlet end in communication;

[0006] End cap body, the front end opening of the end cap body is provided and the movable sleeve of the end cap body is provided on the first end of the shell, the inner wall of the front end of the end cap body is provided with a second thread connection structure extending along the circumference thereof, the second thread connection structure is detachably and rotatably connected with the first thread connection structure, the second thread connection structure is provided with a protruding portion and a positioning wall, and the first end of the end cap body is screwed with the shell to make the positioning portion pass through the protruding portion and be limited between the protruding portion and the positioning wall.

[0007] Preferably, the first thread connection structure and the second thread connection structure are threadedly connected or rotatably connected.

[0008] Preferably, the outer surface of the protruding portion is curved.

[0009] Preferably, the first end of the shell is a connecting ring, the first screwing structure is integrally formed on the connecting ring, the rear end of the end cover body is closed and an inner wall thereof is provided with a positioning ring, an annular positioning groove is formed between the positioning ring and the inner wall of the end cover body, and the connecting ring is sleeved with the positioning groove.

[0010] Preferably, the connecting ring is provided with a sealing ring, and the sealing ring is in interference fit with the inner wall of the positioning groove.

[0011] Preferably, an outer wall of the shell is provided with a limiting ring, the limiting ring is coaxially arranged with the first screwing structure, and the positioning portion is fixedly connected with the limiting ring.

[0012] Preferably, the filter core body is detachably connected in the shell and in communication with the water inlet end.

[0013] Preferably, two ends of the filter core body are respectively provided with a first and a second butt joint end, an inner wall of the shell is provided with a first butt joint pipe in communication with the water inlet end, the first butt joint pipe is sleeved with the first butt joint end, and an inner wall of the rear end of the end cover body is provided with a second butt joint pipe, the second butt joint pipe is sleeved with the second butt joint end.

[0014] Compared with the prior art, the filter core has the following beneficial effects:

[0015] The filter core is detachably connected between the end cover body and the shell through the first and second screwing structures. When the end cover body and the shell are screwed, the positioning portion passes through the protruding portion and is limited between the protruding portion and the positioning wall, so that the end cover body and the shell are prevented from being loosened, and the sealing between the end cover body and the shell is reliable. In the process of unscrewing the end cover body and the shell, the operator needs to apply a torque to the end cover body, the positioning portion extrudes the protruding portion, the protruding portion is deformed under pressure so that the positioning portion passes through the protruding portion and is separated from the positioning wall. When the user applies a rotating torque to take out the filter core from the water purifier, the protruding portion blocks the end cover body from being unscrewed relative to the shell, thereby avoiding the end cover body from being disassembled due to misoperation, simplifying the disassembly and replacement of the filter core, and being convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic view of the filter core in the water purifier in the embodiment;

[0017] Figure 2 is a structure schematic view of the filter core in the embodiment;

[0018] Figure 3 is a sectional view of the filter core in the embodiment Figure 1 ;

[0019] Figure 4 is the cross section of the filter core in the embodiment Figure 2 ;

[0020] Figure 5 is the structural schematic view when the shell and the end cover are split in the embodiment.

[0021] In the figure: 1, shell; 11, first screw joint structure; 12, positioning part; 13, water inlet end; 14, water outlet end; 15, limiting ring; 16, first butt joint pipe; 17, connecting ring; 2, end cover; 21, second screw joint structure; 22, protruding part; 23, positioning wall; 24, positioning ring; 25, positioning groove; 26, sealing ring; 27, second butt joint pipe; 3, filter core; 31, first butt joint end; 32, second butt joint end. DETAILED DESCRIPTION

[0022] The utility model will be further described below by combining the embodiments with the drawings.

[0023] Reference Figures 1 to 5 A filter core of a water purifier convenient to disassemble, comprising a shell 1, an end cover 2 and a filter core 3, the shell 1 is a cylindrical shell, the first end of the shell 1 is provided with an opening for the filter core 3 to be loaded into, the first end of the shell 1 is a connecting ring 17, the inner wall of the connecting ring 17 is matched with the inner wall of the shell 1, the outer wall of the connecting ring 17 is integrally formed with a first screw joint structure 11 extending along the circumference thereof, the first screw joint structure 11 is provided with at least one outwardly protruding positioning part 12, the outer wall of the shell 1 is provided with a limiting ring 15, the limiting ring 15 is coaxially arranged with the first screw joint structure 11, the outer diameter of the limiting ring 15 is greater than the outer diameter of the first screw joint structure 11, the positioning part 12 is fixedly connected with the limiting ring 15, and the second end of the shell 1 is communicatively provided with a water inlet end 13 and a water outlet end 14.

[0024] The front end of the end cover 2 is provided with an opening and movably sleeved on the first end of the shell 1, the inner wall of the front end of the end cover 2 is provided with a second screw joint structure 21 extending along the circumference thereof, and the second screw joint structure 21 is detachably and rotatably connected with the first screw joint structure 11. Preferably, the first screw joint structure 11 can be an outer thread section, the second screw joint structure 21 can be an inner thread section, and the first screw joint structure 11 is threadedly connected with the second screw joint structure 21.

[0025] The first screw joint structure 11 and the second screw joint structure 21 have another embodiment, the first screw joint structure 11 can be an outwardly protruding rotary buckle, the second screw joint structure 21 can be an inwardly recessed rotary buckle slot, and the second screw joint structure 21 is rotatably connected with the first screw joint structure 11 in a buckle type (not shown in the figure).

[0026] The end cover body 2 is detachably connected with the shell 1 through the first screwing structure 11 and the second screwing structure 21, the second screwing structure 21 is provided with a protruding portion 22 and a positioning wall 23, the outer surface of the protruding portion 22 is a curved surface, when the end cover body 2 is screwed with the shell 1, the positioning portion 12 passes through the protruding portion 22 and is limited between the protruding portion 22 and the positioning wall 23, preventing the end cover body 2 from being loosened from the shell 1, ensuring that the end cover body 2 is reliably sealed with the shell 1, in the process of unscrewing the end cover body 2 from the shell 1, the operator needs to apply a torque to the end cover body 2, the positioning portion 12 extrudes the protruding portion 22, the protruding portion 22 is deformed under pressure so that the positioning portion 12 passes through the protruding portion 22 and is separated from the positioning wall 23, and when the user applies a rotation torque to take out the filter core from the water purifier, the protruding portion 22 blocks the end cover body 2 from being unscrewed relative to the shell 1, avoiding the end cover body 2 from being disassembled due to misoperation, simplifying the disassembly and replacement of the filter core, and being convenient to use.

[0027] Preferably, the rear end of the end cover body 2 is closed and the inner wall thereof is provided with a positioning ring 24, an annular positioning groove 25 is formed between the positioning ring 24 and the inner wall of the end cover body 2, when the end cover body is screwed with the first end of the shell 1, the connecting ring 17 is sleeved and matched with the positioning groove 25, thereby cooperating with the second screwing structure 21 and the first screwing structure 11 to form a labyrinth seal structure. The outer wall of the connecting ring 17 is provided with a sealing ring 26, the sealing ring 26 is in interference fit with the inner wall of the positioning groove 25, so as to enhance the sealing performance.

[0028] Preferably, the filter core body 3 is detachably connected in the shell 1 and communicates with the water inlet end 13, the two ends of the filter core body 3 are respectively provided with a first connecting end 31 and a second connecting end 32, the inner wall of the shell 1 is provided with a first connecting pipe 16 which communicates with the water inlet end 13, the first connecting pipe 16 is sleeved and matched with the first connecting end 31, so as to position the filter core body 3 in the shell 1. The rear end inner wall of the end cover body 2 is provided with a second connecting pipe 27, the second connecting pipe 27 is sleeved and matched with the second connecting end 32, so as to guide the assembly between the end cover body 2 and the shell 1.

[0029] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific implementation manners, any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A filter core of a water purifier which is easy to assemble and disassemble, characterized in that, The utility model relates to a filter, including: The first end of the shell (1) is open and the outer wall thereof is provided with a first screw joint structure (11) extending along the circumference thereof, the first screw joint structure (11) is provided with at least one outward convex positioning part (12), the second end of the shell (1) is provided with a water inlet end (13) and a water outlet end (14); The front end of the end cover body (2) is open and the movable sleeve thereof is arranged on the first end of the shell (1), the inner wall of the front end of the end cover body (2) is provided with a second screw joint structure (21) extending along the circumference thereof, the second screw joint structure (21) is detachably and rotatably connected with the first screw joint structure (11), the second screw joint structure (21) is provided with a convex part (22) and a positioning wall (23), the end cover body (2) is screwed with the first end of the shell (1) to make the positioning part (12) pass through the convex part (22) and be limited between the convex part (22) and the positioning wall (23).

2. The filter cartridge of claim 1, wherein, The first screw joint structure (11) is threadedly connected or screw-coupled with the second screw joint structure (21).

3. The filter cartridge of claim 1, wherein the filter cartridge is configured to be easily disassembled. The outer surface of the convex part (22) is curved.

4. The filter cartridge of claim 1, wherein, The first end of the shell (1) is a connecting ring (17), the first screw joint structure (11) is integrally formed on the connecting ring (17), the rear end of the end cover body (2) is closed and the inner wall thereof is provided with a positioning ring (24), an annular positioning groove (25) is formed between the positioning ring (24) and the inner wall of the end cover body (2), the connecting ring (17) is sleeved with the positioning groove (25).

5. The filter cartridge of claim 4, wherein the filter cartridge is configured to be easily disassembled. The connecting ring (17) is provided with a sealing ring (26), the sealing ring (26) is interference-fitted with the inner wall of the positioning groove (25).

6. The filter cartridge of claim 1, wherein, The outer wall of the shell (1) is provided with a limiting ring (15), the limiting ring (15) is coaxially arranged with the first screw joint structure (11), and the positioning part (12) is fixedly connected with the limiting ring (15).

7. The filter cartridge of claim 1, wherein the filter cartridge is configured to be easily disassembled. Further including a filter core body (3), the filter core body (3) is detachably connected in the shell (1) and is in intercommunication with the water inlet end (13).

8. The filter cartridge of claim 7, wherein the filter cartridge is configured to be easily disassembled. The two ends of the filter core body (3) are respectively provided with a first butt joint end (31) and a second butt joint end (32), the inner wall of the shell (1) is provided with a first butt joint pipe (16) in intercommunication with the water inlet end (13), the first butt joint pipe (16) is sleeved with the first butt joint end (31), and the rear inner wall of the end cover body (2) is provided with a second butt joint pipe (27), the second butt joint pipe (27) is sleeved with the second butt joint end (32).

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