CN109663397B

CN109663397B - Rotary water-locking water-purifying filter element and mounting head matched with same

Info

Publication number: CN109663397B
Application number: CN201910003880.0A
Authority: CN
Inventors: 那勤夫; 方锡奉; 金海军; 鞠鹏
Original assignee: Bikelun Beijing Water Purification Technology Co ltd
Current assignee: Bikelun Beijing Water Purification Technology Co ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2024-04-05
Anticipated expiration: 2039-01-03
Also published as: CN109663397A

Abstract

The invention discloses a rotary water-locking water-purifying filter element and a mounting head matched with the same, wherein 1 or more than 1 flow path guide is provided; when the number of the flow paths is 1, the flow paths can rotate around the central axis of the filter element, the flow paths form an inner layer flow path in the flow paths, the inner layer flow path is provided with a one-way valve, and the filter element with two flow paths is formed; when the number of the flow path guides is more than 1, the innermost flow path guide is fixedly arranged, the flow path guides of the other outer layers are coaxially sleeved on the innermost flow path guide in a layering manner, and the flow path guide of each outer layer can rotate around the inner layer flow path guide next to the flow path guide; an inner layer flow path is formed in the innermost layer flow path guide, and a one-way valve is arranged in the inner layer flow path; an inner wall of the flow path guide of each outer layer and an outer wall of the inner layer flow path guide adjacent to the inner wall form an outer layer flow path, and a sealing part is arranged in each outer layer flow path; an outermost flow path is formed by the guide outer wall of the outermost flow path and the inner wall of the filter cap, and a sealing part is arranged in the outermost flow path; the flow path guide rotates around the next flow path guide in sequence under the action of the mounting head so as to open or close all flow paths. The invention can prevent the water leakage caused by the inversion and horizontal placement of the filter element when the filter element is replaced, and has simple mechanism and better sealing stability.

Description

Rotary water-locking water-purifying filter element and mounting head matched with same

Technical Field

The invention relates to a filter element mounting structure, in particular to a rotary water locking and purifying filter element capable of preventing water leakage during filter element replacement and a mounting head matched with the rotary water locking and purifying filter element

Background

At present, the existing filter core in market, a part of filter core do not establish the lock water structure, and the filter core can only just stand in water purifier complete machine product, if carry out other positions and place, when changing the filter core, there is a large amount of water to leak. The other part of filter core is equipped with the water locking structure, but the structure is comparatively complicated, the assemblability inserts, the water purification filter core demand to high integration level is more and more in the market to all delivery ports are all integrated in filter core one end and are more favorable to the design equipment of water purifier, so can contain many water routes in the same filter core, current water locking structure can only be suitable for the filter core that the number of integrated water route is less, and can not satisfy and lock water to the water purification filter core that contains many water routes and delivery port all integrate in same end, just so greatly reduced water purification filter core range of application, be unfavorable for popularization and application.

Therefore, the inventor provides a rotary water-locking water-purifying filter element and a mounting head matched with the same by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art.

Disclosure of Invention

The invention aims to provide a rotary water-locking water-purifying filter element and a mounting head matched with the same, so as to solve the problems in the prior art.

The invention provides the following technical scheme:

the utility model provides a rotatory lock water purification filter core, includes filter flask and filter flask lid, the filter flask lid is connected the open end of filter flask, be equipped with in the filter flask lid: 1 or more than 1 flow path guide;

when the number of the flow paths is 1, the flow paths can rotate around the central axis of the filter element, the flow paths form an inner layer flow path in the flow paths, the inner layer flow path is provided with a one-way valve, and the filter element with two flow paths is formed; when the number of the flow path guides is more than 1, the innermost flow path guide is fixedly arranged, the flow path guides of the other outer layers are coaxially sleeved on the innermost flow path guide in a layering manner, and each flow path guide of the outer layers can rotate around the inner layer flow path guide next to the flow path guide of the outer layer; an inner layer flow path is formed in the innermost layer flow path guide, and a one-way valve is arranged in the inner layer flow path; an inner wall of the flow path guide of each outer layer and an outer wall of the inner layer flow path guide adjacent to the inner wall form an outer layer flow path, and a sealing part is arranged in each outer layer flow path; an outermost flow path is formed by the guide outer wall of the outermost flow path and the inner wall of the filter cap, and a sealing part is arranged in the outermost flow path; the flow path guide rotates around the next flow path guide in sequence under the action of the mounting head so as to open and close all flow paths.

The outermost flow path guide is rotatable about its adjacent inner flow path guide in a direction opposite to the direction of twist upon insertion of the cartridge into the mounting head under the torque of the mounting head and urges the outer flow path guide to rotate about its adjacent inner flow path guide to open all flow paths. Alternatively, the next-to-inner-layer flow path guide can rotate around the next-to-inner-layer flow path guide in the opposite direction to the twisting direction when the filter cartridge is inserted into the mounting head under the torque force of the mounting head, and the next-to-inner-layer flow path guide is pushed to rotate around the outer-layer flow path guide thereof, so that all flow paths are opened.

When the number of the flow path guides is 1, the flow path guide is referred to as a first flow path guide; when the number of flow paths is 2, the flow paths are respectively called a second flow path and a first flow path from inside to outside; when the number of flow paths is 3, the flow paths are respectively referred to as a third flow path, a second flow path and a first flow path from inside to outside.

The installation head used in cooperation provides torsion force for the first flow path guide through the torsion structure. The installation head used in cooperation provides torsion force for the first flow path guide through the torsion structure.

When the flow path guides are 3:

a third flow path guide fixedly arranged, wherein a first end of the third flow path guide extends towards the outlet end of the filter bottle cap, a fourth flow path is formed in the third flow path guide, and a one-way valve is arranged in the fourth flow path; a second flow path guide coaxially provided outside the third flow path guide and rotatable about the third flow path guide, a third flow path being formed between the second flow path guide inner wall and the third flow path guide outer wall, the third flow path having a third seal portion; a first flow path guide coaxially arranged outside the second flow path guide and rotatable around the second flow path guide, wherein a second flow path is formed between the first flow path guide inner wall and the second flow path guide outer wall, a first flow path is formed between the first flow path guide outer wall and the filter cap inner wall, the second flow path has a second sealing portion, and the first flow path has a first sealing portion; the first flow path guide can rotate around the second flow path guide in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head, and the second flow path guide is pushed to rotate around the third flow path guide, so that the first flow path, the second flow path and the third flow path are opened.

Be equipped with first water-passing opening on the inner wall of filter flask lid, be equipped with first seal groove and first sealing hole on the outer wall of the first end of first flow path guide to first sealing hole is in succession on first seal groove upper portion, be equipped with first sealing washer in the first seal groove, be equipped with first sealing washer in the first sealing hole, first sealing washer and first sealing washer design as an organic whole, first flow path guide first sealing washer, first sealing washer with form between the filter flask lid inner wall first sealing part, first sealing washer rotates to first water-passing opening position alignment, and first water-passing opening is sealed, and first flow path is sealed. The first flow path is led to and is equipped with second water-passing opening on the inner wall, be equipped with second seal groove and second sealed hole on the outer wall of second flow path is led to the second sealed hole is in succession on second seal groove upper portion, be equipped with the second sealing washer in the second seal groove, be equipped with the second sealing washer in the second sealed hole, second sealing washer and second sealing washer are integrated into one piece design, second flow path is led second sealing washer, second sealing washer with form between the first flow path is led to the inner wall second sealing part, second water-passing opening position rotates to align with the second sealing washer position, and second water-passing opening is sealed, and the second flow path is sealed. The second flow path is equipped with third sealing groove and third sealing hole on the guide inner wall of second flow path, be equipped with third seal groove and third sealing hole on the outer wall of third flow path guide to the third sealing hole is in succession on third seal groove upper portion, be equipped with the third sealing washer in the third seal groove, be equipped with the third sealing washer in the third sealing hole, third sealing washer and third sealing washer are integrated into one piece design, third flow path guide third sealing washer, third sealing washer with form between the guide 4 inner wall of second flow path third sealing portion, third sealing washer rotates to align with third sealing washer position, and third sealing notch seals, and third flow path is sealed.

The filter bottle cap is provided with a first trapezoid step, a fourth sealing gasket groove and a fourth water opening are formed in the inner stair end face of the first trapezoid step, the fourth sealing gasket groove is filled with a fourth sealing gasket, the first flow path is provided with a second trapezoid step in a guiding mode, a fifth water opening is formed in the outer stair end face of the second trapezoid step, the fourth sealing gasket and the outer end face of the second trapezoid step are pressed to form a first sealing portion, and when the fourth water opening and the fifth water opening are aligned, the first flow path is opened. The inner step end face of the second trapezoid step of the first flow path guide is provided with a sixth sealing gasket groove and a sixth water passing opening, the sixth sealing gasket groove is filled with a sixth sealing gasket, the second flow path guide is provided with a third trapezoid step, the outer step end face of the third trapezoid step is provided with a seventh water passing opening, the outer end faces of the sixth sealing gasket and the third trapezoid step are tightly pressed to form a second sealing part, and when the sixth water passing opening and the seventh water passing opening are aligned, the second flow path is opened. The inner step end face of the third trapezoid step of the second flow path guide is provided with an eighth sealing gasket groove and an eighth water passing opening, the eighth sealing gasket groove is filled with an eighth sealing gasket, the third flow path guide is provided with a fourth flat end face, the fourth flat end face is provided with a ninth water passing opening, the eighth sealing gasket and the fourth flat end face are pressed to form a third sealing part, and when the eighth water passing opening and the ninth water passing opening are aligned, the third flow path is opened.

The inner wall of the filter bottle cap is provided with a first limiting lug which limits the rotating position of the first flow path guide; the inner wall of the first flow path guide is provided with a second limiting lug, so that the first flow path guide can drive the second flow path guide to rotate and limit the rotating position of the second flow path guide; and a limit bump III is arranged on the inner wall of the second flow path guide to limit the rotation position of the second flow path guide.

The filter flask is internally provided with: the first filter material assembly comprises a first upper end cover, a first lower end cover and a first filter material, wherein the first upper end cover and the first lower end cover are respectively arranged at two ends of the first filter material, and the first upper end cover is in sealing connection between the first flow path guide and the second flow path guide; the upper end of the inner cylinder is in sealing connection between the second flow path guide and the third flow path guide, and the lower end of the inner cylinder is in sealing connection with the inner wall of the first lower end cover; the second filter material assembly and the third filter material assembly are positioned in the inner cylinder, the second filter material assembly comprises a second upper end cover, a filter material cylinder and a second filter material, the second filter material is arranged in the filter material cylinder, the upper end of the second upper end cover is in sealing connection with the lower end of the third flow path guide and props against the one-way valve, the third filter material assembly comprises a third filter material, a third upper end cover and a third lower end cover, the third upper end cover and the third lower end cover are respectively arranged at the two ends of the third filter material, the third upper end cover is in sealing connection with the lower end of the filter material cylinder, and the third lower end cover is in sealing connection with the bottom end of the inner cylinder to form the sealing of the bottom end of the inner cylinder; the waterway formed by the gap between the outer side of the first filter material component and the inner wall of the filter flask is communicated with the first flow channel; the waterway formed by the gap between the inner side of the first filter material component and the outer side of the inner cylinder is communicated with the second waterway; gaps formed between the inner wall of the inner cylinder and the outer parts of the second filter material assembly and the third filter material assembly are communicated with the third flow path; the second filter material component and the third filter material component jointly form an internal water channel, and the internal water channel is communicated with the fourth flow path through a one-way valve.

A mounting head capable of mating with the rotary water-locking water-purifying cartridge, the mounting head having: a first sealing wall, a second sealing wall, a third sealing wall and a fourth sealing wall;

the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall and the third sealing wall can be inserted into the upper end of the first flow path guide and form a seal with the second sealing wall; the second flow path guide upper end can be inserted between the third sealing wall and the fourth sealing wall, and the second flow path guide upper end and the third sealing wall form a seal; the fourth sealing wall can be inserted into the upper end of the third flow path guide and form a seal with the fourth sealing wall; the lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate; when the filter element is rotatably inserted into the mounting head, the torsion arm is inserted into the torsion socket, so that the first flow path guide rotates in the opposite direction to the direction of rotatably inserting the filter element, and the first flow path guide pushes the second flow path guide to complete the opening of the first flow path, the second flow path and the third flow path; when the filter element is disassembled, the filter element is closed in the opposite way.

When the flow path guides are 2:

the second flow path guide is fixedly arranged, the first end of the second flow path guide extends towards the outlet end of the filter bottle cap, a third flow path is formed in the second flow path guide, and a one-way valve is arranged in the third flow path; a first flow path guide coaxially arranged outside the second flow path guide and rotatable around the second flow path guide, wherein a second flow path is formed between the first flow path guide inner wall and the second flow path guide outer wall, a first flow path is formed between the first flow path guide outer wall and the filter cap inner wall, the second flow path has a second sealing portion, and the first flow path has a first sealing portion; the first flow path guide can rotate around the second flow path guide in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head, so that the first flow path and the second flow path are opened.

Be equipped with first water-passing opening on the inner wall of filter flask lid, be equipped with first seal groove and first sealing hole on the outer wall of the first end of first flow path guide to first sealing hole is in succession on first seal groove upper portion, be equipped with first sealing washer in the first seal groove, be equipped with first sealing washer in the first sealing hole, first sealing washer and third sealing washer design as an organic whole, first flow path guide first sealing washer, first sealing washer with form between the filter flask lid inner wall first sealing part, first sealing washer rotates to first water-passing opening position alignment, and first water-passing opening is sealed, and first flow path is sealed. The first flow path is led to and is equipped with second water-passing opening on the inner wall, be equipped with second seal groove and second sealed hole on the outer wall of second flow path is led to the second sealed hole is in succession on second seal groove upper portion, be equipped with the second sealing washer in the second seal groove, be equipped with the second sealing washer in the second sealed hole, second sealing washer and second sealing washer are integrated into one piece design, second flow path is led second sealing washer, second sealing washer with form between the first flow path is led to the inner wall second sealing part, second water-passing opening position rotates to align with the second sealing washer position, and second water-passing opening is sealed, and the second flow path is sealed.

The filter bottle cap is provided with a first trapezoid step, a fourth sealing gasket groove and a fourth water opening are formed in the inner stair end face of the first trapezoid step, the fourth sealing gasket groove is filled with a fourth sealing gasket, the first flow path is provided with a second trapezoid step in a guiding mode, a fifth water opening is formed in the outer stair end face of the second trapezoid step, the fourth sealing gasket and the outer end face of the second trapezoid step are pressed to form a first sealing portion, and when the fourth water opening and the fifth water opening are aligned, the first flow path is opened. The inner step end face of the second trapezoid step of the first flow path guide is provided with a sixth sealing gasket groove and a sixth water passing opening, the sixth sealing gasket groove is filled with a sixth sealing gasket, the second flow path guide is provided with a third trapezoid step, the outer step end face of the third trapezoid step is provided with a seventh water passing opening, the outer end faces of the sixth sealing gasket and the third trapezoid step are tightly pressed to form a second sealing part, and when the sixth water passing opening and the seventh water passing opening are aligned, the second flow path is opened.

The inner wall of the filter bottle cap is provided with a first limiting lug which limits the rotating position of the first flow path guide.

The filter flask is internally provided with: the fourth filter material assembly comprises a central tube, a fourth upper end cover and a fourth filter material, wherein the fourth filter material is wound on the central tube, the fourth upper end cover is arranged at the upper end of the fourth filter material, and the fourth upper end cover is in sealing connection between the first flow path guide and the second flow path guide;

The waterway formed by the gap between the outer side of the fourth filter material component and the inner wall of the filter flask is communicated with the first flow channel;

the gap waterway formed between the upper end surface of the fourth filter material and the inner side of the third upper end cover is communicated with the second flow channel; the central tube is an internal waterway, and the internal waterway is communicated with the third flow path through a one-way valve.

A mounting head capable of mating with the spin lock water purification cartridge (having 2 flow guides), the mounting head comprising:

a mounting head capable of mating with a rotary water-locking water purification cartridge, the mounting head having: a first sealing wall, a second sealing wall, and a fourth sealing wall; the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall and the third sealing wall can be inserted into the upper end of the first flow path guide and form a seal with the second sealing wall; the fourth sealing wall is insertable into the second flow path guide upper end and forms a seal with the fourth sealing wall. The lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate; when the filter element is rotatably inserted into the mounting head, the torsion arm is inserted into the torsion socket, so that the first flow path guide forms rotation in the opposite direction to the direction of rotatably inserting the filter element, and the opening of the first flow path and the second flow path is completed; when the filter element is disassembled, the filter element is closed in the opposite way.

When the flow path guide is 1:

a first flow path guide, wherein the first flow path guide is fixedly arranged, a first end of the first flow path guide extends towards an outlet end of the filter bottle cap, a second flow path is formed in the first flow path guide, and a one-way valve is arranged in the second flow path; a first flow path is formed between the first flow path guide outer wall and the filter bottle cap inner wall, the second flow path is provided with a second sealing part, and the first flow path is provided with a first sealing part; the first flow guide path can rotate around the central axis of the filter element in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head so as to open the first flow path.

Be equipped with first water-passing opening on the inner wall of filter flask lid, be equipped with first seal groove and first sealing hole on the outer wall of the first end of first flow path guide to first sealing hole is in succession on first seal groove upper portion, be equipped with first sealing washer in the first seal groove, be equipped with first sealing washer in the first sealing hole, first sealing washer and first sealing washer design as an organic whole, first flow path guide first sealing washer, first sealing washer with form between the filter flask lid inner wall first sealing part, first sealing washer rotates to first water-passing opening position alignment, and first water-passing opening is sealed, and first flow path is sealed.

The filter bottle cap is provided with a first trapezoid step, a fourth sealing gasket groove and a fourth water opening are formed in the inner stair end face of the first trapezoid step, the fourth sealing gasket groove is filled with a fourth sealing gasket, the first flow path is provided with a second trapezoid step in a guiding mode, a fifth water opening is formed in the outer stair end face of the second trapezoid step, the fourth sealing gasket and the outer end face of the second trapezoid step are pressed to form a first sealing portion, and when the fourth water opening and the fifth water opening are aligned, the first flow path is opened.

The filter flask is internally provided with: the first filter material assembly comprises a first upper end cover, a first lower end cover and a first filter material, wherein the first upper end cover and the first lower end cover are respectively arranged at the two ends of the first filter material, and the first upper end cover is in sealing connection with the second end of the first flow path guide; the waterway formed by the gap between the outer side of the first filter material component and the inner wall of the filter flask is communicated with the first flow channel; the first filter assembly forms an internal waterway which is communicated with the second channel.

A mounting head capable of mating with the spin lock water purification cartridge (having 1 flow path guide), the mounting head comprising:

A first sealing wall, a second sealing wall; the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall can be inserted into the upper end of the first flow path guide and forms a seal with the second sealing wall; the lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate so as to finish the opening of the first flow path; when the filter element is disassembled, the filter element is closed in the opposite way.

The beneficial technical effects of the invention are as follows: the filter element is prevented from being inverted and horizontally placed to generate water leakage when the filter element is replaced, the mechanism is simple, and the sealing stability is good.

Drawings

FIG. 1 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-locking condition according to an embodiment I;

FIG. 2 is a second cross-sectional view of the first rotary water-locking water purification cartridge and the associated mounting head in a water-locking condition;

FIG. 3 is a third cross-sectional view of the rotary water-locking water purification cartridge and the associated mounting head in a water-on condition according to the first embodiment;

FIG. 4 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-passing condition according to an embodiment I;

FIG. 5 is a second cross-sectional view of the first rotary water-locking water purification cartridge and the associated mounting head in a water-on condition;

FIG. 6 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-locking condition according to an embodiment I;

FIG. 7 is a second cross-sectional view of the first rotary water-locking water purification cartridge and the associated mounting head in a water-locking condition;

FIG. 8 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-passing condition according to an embodiment I;

FIG. 9 is a second cross-sectional view of the first rotary water-locking water purification cartridge and associated mounting head in a water-on condition;

FIG. 10 is a three-dimensional exploded view of a rotary water-locking water purification cartridge and mating mounting head according to an embodiment;

FIG. 11 is a cross-sectional view of a second embodiment of a rotary water-locking water purification cartridge and associated mounting head in a water-on condition;

FIG. 12 is a cross-sectional view of a second embodiment of a rotary water-locking water purification cartridge and associated mounting head in a water-passing condition;

FIG. 13 is a cross-sectional view I of a water-locking state of a rotary water-locking water purification cartridge according to the second embodiment;

FIG. 14 is a second cross-sectional view of the second rotary water-locking water purification cartridge of the second embodiment;

FIG. 15 is a third cross-sectional view of the second embodiment of the water-locking water purification cartridge in a water-locking condition;

FIG. 16 is a bottom view of a second embodiment of a filter cap;

FIG. 17 is a bottom view of a second embodiment of a first flow guide;

FIG. 18 is a bottom view of a second flow path guide of the second embodiment;

FIG. 19 is a three-dimensional exploded view of a rotary water-locking water purification cartridge and mating mounting head of an embodiment two;

FIG. 20 is a cross-sectional view of the rotary water-locking water purification cartridge and the mating mounting head according to the third embodiment in a water-locking condition;

FIG. 21 is a cross-sectional view of the rotary water-locking water purification cartridge and associated mounting head of the fourth embodiment in a water-passing condition;

FIG. 22 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-locking condition according to a fifth embodiment;

FIG. 23 is a cross-sectional view of a rotary water-locking water purification cartridge and associated mounting head in a water-passing condition according to a sixth embodiment;

description of the reference numerals

100. Rotating the water-locking water-purifying filter element; 200. a mounting head; 1. a filter flask; 2. a filter bottle cap; 3. a first flow path guide; 4. a second flow path guide; 5. a third flow path guide; 6. a first filter assembly; 7. an inner cylinder; 8. a second filter assembly; 9. a third filter assembly; 10. a second upper end cap; 11. a one-way valve; 3-2, twisting the socket; 2-1, a first water-passing opening; 3-1, a second water-passing opening; 4-1, a third water-through opening; 2-5, a first trapezoid step; 2-2, a fourth water-draining opening; 3-5, a second trapezoid step;

3-3, a fifth water-passing opening; 3-4, a sixth water-passing opening; 4-5, a third trapezoid step; 4-4, a seventh water-passing opening;

4-3, an eighth water-through opening; 5-1, a fourth flat end face; 5-2, a ninth water-through opening; 2-2, a first limit lug; 3-6, limiting a second bump; 5-3, limiting a third bump; 61. a first upper end cap; 62. a first lower end cap; 63. a first filter material; 81. a filter cartridge; 82. a second filter material; 91. a third filter material; 92. a third upper end cap; 93. a third lower end cap; 2001. a torsion arm; 2002. a first sealing wall; 2003. a second sealing wall; 2004. a third sealing wall; 2005. a fourth sealing wall; m1, a first sealing part;

m2. a second sealing part; m3, a third sealing part; l1. a first flow path; l2. a second flow path; l3. a third flow path; l4. fourth flow path; C1. a first seal groove; C2. a second seal groove; C3. a third seal groove; C6. a sixth seal groove; C8. an eighth seal groove; K1. a first seal bore; K2. a second seal hole; K3. a third seal hole; s1, a first sealing ring; s2, a second sealing ring; s3, a third sealing ring; D1. a first gasket; D2. a second gasket; D3. a third gasket; D4. a fourth gasket; D6. a sixth gasket; D8. an eighth gasket; 12. a fourth filter assembly; 12-1, a central tube; 12-2, a fourth upper end cover; 12-3, a fourth filter material.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1-10, a rotary water-locking water-purifying filter element comprises a filter bottle 1 and a filter bottle cap 2, wherein the filter bottle cap 2 is connected with an opening end of the filter bottle; the filter is characterized in that when the number of flow path guides arranged in the filter cap is 3:

a third flow path guide 5, wherein the third flow path guide 5 is fixedly arranged, a first end of the third flow path guide 5 extends towards the outlet end of the filter cap 2, a fourth flow path L4 is formed in the third flow path guide 5, and a one-way valve 11 is arranged in the fourth flow path L4;

a second flow path guide 4 coaxially provided outside the third flow path guide 5 and rotatable around the third flow path guide 5, wherein a third flow path L3 is formed between the inner wall of the second flow path guide 4 and the outer wall of the third flow path guide 5, and the third flow path L3 has a third sealing portion M3;

a first flow path guide 3 coaxially provided outside the second flow path guide 4 and rotatable around the second flow path guide 4, wherein a second flow path L2 is formed between an inner wall of the first flow path guide 3 and an outer wall of the second flow path guide 4, a first flow path L1 is formed between the outer wall of the first flow path guide 3 and an inner wall of the filter plug 2, the second flow path L2 has a second sealing portion M2, and the first flow path L1 has a first sealing portion M1;

The first diversion path guide 3 can rotate around the second flow path guide towards the opposite direction of the torsion direction when the filter element is inserted into the mounting head 200 under the torsion action of the mounting head 200, and pushes the second diversion path guide 4 to rotate around the third flow path guide 5 so as to open the first flow path L1, the second flow path L2 and the third flow path L3.

The torsion socket 3-2 is provided outside the first flow path guide 3, and the fitting head 200 is used to provide torsion force to the first flow path guide 3 through the torsion socket 3-2.

The filter bottle cap 2 is characterized in that a first water-passing opening 2-1 is formed in the inner wall of the filter bottle cap 2, a first sealing groove C1 and a first sealing hole K1 are formed in the outer wall of the first end of the first flow path guide 3, the first sealing hole K1 is connected to the upper portion of the first sealing groove C1, a first sealing ring S1 is arranged in the first sealing groove C1, a first sealing pad D1 is arranged in the first sealing hole K1, the first sealing ring S1 and the first sealing pad D1 are integrally designed, a first sealing portion M1 is formed between the first sealing ring S1 and the inner wall of the filter bottle cap 2 of the first flow path guide 3, the first sealing pad D1 rotates to the position of the first water-passing opening 2-1 to be aligned, the first water-passing opening 2-1 is sealed, and the first flow path L1 is closed.

The first flow path guide 3 is provided with a second water-passing opening 3-1 on the inner wall, the outer wall of the second flow path guide 4 is provided with a second sealing groove C2 and a second sealing hole K2, the second sealing hole K2 is connected to the upper part of the second sealing groove C2, a second sealing ring S2 is arranged in the second sealing groove C2, a second sealing pad D2 is arranged in the second sealing hole K2, the second sealing ring S2 and the second sealing pad D2 are integrally designed, a second sealing part M2 is formed between the second sealing ring S2, the second sealing pad D2 and the inner wall of the first flow path guide 3 of the second flow path guide 4, the second water-passing opening 3-1 is rotated to be aligned with the second sealing pad D2, the second water-passing opening 3-2 is sealed, and the second flow path L2 is closed.

The inner wall of the second flow path guide 4 is provided with a third water through opening 4-1, the outer wall of the third flow path guide 5 is provided with a third sealing groove C3 and a third sealing hole K3, the third sealing hole K3 is connected to the upper part of the third sealing groove C3, a third sealing ring S3 is arranged in the third sealing groove C3, a third sealing pad D3 is arranged in the third sealing hole K3, the third sealing ring S3 and the third sealing pad D3 are integrally designed, a third sealing part M3 is formed among the third sealing ring S3, the third sealing pad D3 and the inner wall of the second flow path guide 4 of the third flow path guide 5, the third water through opening 4-1 rotates to be aligned with the position of the third sealing pad D3, the third water through opening 4-1 is sealed, and the third flow path L3 is closed.

The inner wall of the filter bottle cap 2 is provided with a limiting lug I2-2 for limiting the rotation position of the first flow path guide 3; the inner wall of the first flow path guide 3 is provided with a limiting lug II 3-6, so that the first flow path guide 3 can drive the second flow path guide 4 to rotate and limit the rotation position of the second flow path guide 4; and the inner wall of the second flow path guide 5 is provided with a limit lug III 5-3 for limiting the rotation position of the second flow path guide 4.

The filter flask is internally provided with: the first filter material assembly 6 comprises a first upper end cover 61, a first lower end cover 62 and a first filter material 63, wherein the first upper end cover 61 and the first lower end cover 62 are respectively arranged at two ends of the first filter material 63, and the first upper end cover 61 is in sealing connection between the first flow path guide 3 and the second flow path guide 4;

the upper end of the inner cylinder 7 is in sealing connection between the second flow path guide 4 and the third flow path guide 5, and the lower end of the inner cylinder is in sealing connection with the inner wall of the first lower end cover 62;

the second filter material assembly 8 and the third filter material 9 assembly are arranged in the inner cylinder, the second filter material assembly 8 comprises a second upper end cover 10, a filter material cylinder 81 and a second filter material cylinder 82, the second filter material cylinder 82 is filled with the second filter material, the upper end of the second upper end cover 10 is in sealing connection with the lower end of the third flow path guide 5 and props against the check valve 11, the third filter material assembly 9 comprises a third filter material 91, a third upper end cover 92 and a third lower end cover 93, the two ends of the third filter material 91 are respectively provided with the third upper end cover 92 and the third lower end cover 93, the third upper end cover 92 is in sealing connection with the lower end of the filter material cylinder 81, and the third lower end cover 93 is in sealing connection with the bottom end of the inner cylinder 7 to form the sealing of the bottom end of the inner cylinder 7.

The waterway formed by the outer side of the first filter material component 6 and the gap between the inner wall of the filter flask 1 is communicated with the first flow path L1;

the waterway formed by the gap between the inner side of the first filter material assembly 6 and the outer side of the inner cylinder 7 is communicated with the second flow path L2;

gaps formed between the inner wall 7 of the inner cylinder and the outside of the second filter material assembly 8 and the third filter material assembly 9 are communicated with the third flow path L3;

the second filter assembly 8 and the third filter assembly 9 together form an internal water passage which communicates with the fourth flow path L3 through a check valve 11.

A mounting head capable of mating with the rotary water-locking water-purifying cartridge, the mounting head having:

a first sealing wall 2002, a second sealing wall 2003, a third sealing wall 2004 and a fourth sealing wall 2005;

the upper end of the filter bottle cap 2 can be inserted between the first sealing wall 2002 and the second sealing wall 2003, and the filter bottle cap and the first sealing wall 2002 form a seal;

the upper end of the first flow path guide 3 can be inserted between the second sealing wall 2003 and the third sealing wall 2004, and a seal is formed with the second sealing wall 2003;

the third sealing wall 2004 and the fourth sealing wall 2005 can be inserted into the upper end of the second flow path guide 4 and form a seal with the third sealing wall 2004;

The fourth sealing wall 2005 is inserted into the upper end of the third flow path guide 5 and forms a seal with the fourth sealing wall 2005.

A torsion arm 2001 is arranged at the lower end of the second sealing wall 2003 and can be inserted into a torsion socket 3-2 corresponding to the first flow path guide 3 to drive the first flow path guide 3 to rotate; when the filter element is rotatably inserted into the mounting head 200, the torsion arm 2001 is inserted into the torsion socket 3-2, so that the first flow path guide 3 rotates in the opposite direction to the direction in which the filter element is rotatably inserted, and the first flow path guide 3 pushes the second flow path guide 4 to complete the opening of the first flow path, the second flow path and the third flow path; when the filter element is disassembled, the filter element is closed in the opposite way.

Example two

10-19, a rotary water-locking water-purifying filter element comprises a filter bottle 1 and a filter bottle cap 2, wherein the filter bottle cap 2 is connected with an opening end of the filter bottle; when the number of flow path guides arranged in the filter bottle cap is 3:

The filter bottle cap 2 is provided with a first trapezoid step 2-5, a fourth sealing gasket groove C4 and a fourth water-passing opening 2-2 are formed in the inner stair end face of the first trapezoid step 2-5, the fourth sealing gasket groove C4 is filled with a fourth sealing gasket D4, the first flow path guide 3 is provided with a second trapezoid step 3-5, a fifth water-passing opening 3-3 is formed in the outer stair end face of the second trapezoid step 3-5, a first sealing part M1 is formed by compressing the outer end faces of the fourth sealing gasket D4 and the second trapezoid step 3-5, and when the fourth water-passing opening 2-2 and the fifth water-passing opening 3-3 are aligned, the first flow path L1 is opened.

The inner stepped end face of the second trapezoid step 3-5 of the first flow path guide 3 is provided with a sixth sealing gasket groove C6 and a sixth water passing opening 3-4, the sixth sealing gasket groove C6 is filled with a sixth sealing gasket D6, the second flow path guide 4 is provided with a third trapezoid step 4-5, the outer stepped end face of the third trapezoid step 4-5 is provided with a seventh water passing opening 4-4, the outer end faces of the sixth sealing gasket D6 and the third trapezoid step 4-5 are tightly pressed to form a second sealing part M2, and when the sixth water passing opening 3-4 and the seventh water passing opening 4-4 are aligned, the second flow path L2 is opened.

An eighth sealing gasket groove C8 and an eighth water passing opening 4-3 are formed in the inner stepped end face of the third trapezoid step 4-5 of the second flow path guide 4, an eighth sealing gasket D8 is arranged in the eighth sealing gasket groove C8, a fourth flat end face 5-1 is arranged on the third flow path guide 5, a ninth water passing opening 5-2 is formed in the fourth flat end face 5-1, a third sealing part M3 is formed by compressing the eighth sealing gasket D8 and the fourth flat end face, and when the eighth water passing opening 4-3 and the ninth water passing opening 5-2 are aligned, the third flow path L3 is opened.

A mounting head capable of mating with a rotary water-locking water purification cartridge, the mounting head having:

Example III

Referring to fig. 20, a rotary water-locking water-purifying filter element comprises a filter bottle 1 and a filter bottle cap 2, wherein the filter bottle cap 2 is connected with an opening end of the filter bottle; when the number of flow path guides arranged in the filter bottle cap is 2:

a second flow path guide 4, wherein the second flow path guide 4 is fixedly arranged, a first end of the second flow path guide 4 extends towards an outlet end of the filter cap 2, a third flow path L3 is formed in the second flow path guide 4, and a one-way valve 11 is arranged in the third flow path L3;

The first guide 3 can rotate around the second guide in the opposite direction to the twisting direction when the filter element is inserted into the mounting head 200 under the torsion of the mounting head 200, so as to open the first and second channels L1 and L2.

The inner wall of the filter bottle cap 2 is provided with a limiting lug I2-2 for limiting the rotation position of the first flow path guide 3;

the filter flask is internally provided with: the fourth filter material assembly 12 comprises a central tube 12-1, a fourth upper end cover 12-2 and a fourth filter material 12-3, wherein the fourth filter material is wound on the central tube 12-3, the fourth upper end cover 12-2 is arranged at the upper end of the fourth filter material 12-3, and the fourth upper end cover 12-2 is in sealing connection between the first flow path guide 3 and the second flow path guide 4;

the waterway formed by the gap between the outer side of the fourth filter material component 12 and the inner wall of the filter flask 1 is communicated with the first flow path L1;

the gap waterway formed between the upper end surface of the fourth filter medium 12-3 and the inner side of the third upper end cover 12-2 is communicated with the second flow path L2;

the central pipe 12-1 is an internal water passage, and the internal water passage is communicated with the third flow path L3 through the check valve 11.

a first sealing wall 2002, a second sealing wall 2003, and a fourth sealing wall 2005;

The fourth sealing wall 2005 is inserted into the upper end of the second flow path guide 4 and forms a seal with the fourth sealing wall 2005.

A torsion arm 2001 is arranged at the lower end of the second sealing wall 2003 and can be inserted into a torsion socket 3-2 corresponding to the first flow path guide 3 to drive the first flow path guide 3 to rotate; when the filter element is rotatably inserted into the mounting head 200, the torsion arm 2001 is inserted into the torsion socket 3-2, so that the first flow path guide 3 rotates in the opposite direction to the direction of rotatably inserting the filter element, and the opening of the first flow path and the second flow path is completed; when the filter element is disassembled, the filter element is closed in the opposite way.

Example IV

Referring to fig. 21, a rotary water-locking water-purifying filter element comprises a filter bottle 1 and a filter bottle cap 2, wherein the filter bottle cap 2 is connected with an opening end of the filter bottle; when the number of flow path guides arranged in the filter bottle cap is 2:

Example five

Referring to fig. 22, a rotary water-locking water-purifying filter element comprises a filter flask 1 and a filter flask cover 2, wherein the filter flask cover 2 is connected with an opening end of the filter flask; when the flow path guide is 1 in the filter bottle cap:

a first end of the first flow path guide 3 extends towards the outlet end of the filter cap 2, a second flow path L2 is formed in the first flow path guide 3, and a one-way valve 11 is arranged in the second flow path L2;

a first flow path L1 is formed between the outer wall of the first flow path guide 3 and the inner wall of the filter plug 2, the second flow path L2 has a second sealing portion M2, and the first flow path L1 has a first sealing portion M1;

Wherein the first guide 3 is rotatable about the central axis of the cartridge in a direction opposite to the twisting direction when the cartridge is inserted into the mounting head 200 by the torsion of the mounting head 200, so as to open the first flow path L1.

The inner wall of the filter bottle cap 2 is provided with a first water-passing opening 2-1, the outer wall of the first end of the first flow path guide 3 is provided with a first sealing groove C1 and a first sealing hole K1, the first sealing hole K1 is connected to the upper part of the first sealing groove C1, a first sealing ring S1 is arranged in the first sealing groove C1, a first sealing pad D1 is arranged in the first sealing hole K1, the first sealing ring S1 and the first sealing pad D1 are integrally designed, a first sealing part M1 is formed between the first sealing ring S1 and the first sealing pad K1 of the first flow path guide 3 and the inner wall of the filter bottle cap 2, the first sealing pad D1 rotates to the position of the first water-passing opening 2-1 to be aligned, the first water-passing opening 2-1 is sealed, and the first flow path L1 is closed.

the filter flask is internally provided with: the first filter material assembly 6 comprises a first upper end cover 61, a first lower end cover 62 and a first filter material 63, wherein the first upper end cover 61 and the first lower end cover 62 are respectively arranged at two ends of the first filter material 63, and the first upper end cover 61 is in sealing connection with the second end of the first flow path guide 3;

the internal waterway formed by the first filter assembly 6 is communicated with the second flow path L2;

a first sealing wall 2002, a second sealing wall 2003;

the second sealing wall 2003 can be inserted into the upper end of the first flow guide 3 and form a seal with the second sealing wall 2003;

a torsion arm 2001 is arranged at the lower end of the second sealing wall 2003, and can be inserted into a torsion socket 3-2 corresponding to the first flow path guide 3 to drive the first flow path guide 3 to rotate so as to finish the opening of the first flow path; when the filter element is disassembled, the filter element is closed in the opposite way.

Example six

Referring to fig. 23, a rotary water-locking water-purifying filter element comprises a filter flask 1 and a filter flask cover 2, wherein the filter flask cover 2 is connected with an opening end of the filter flask; when the flow path guide is 1 in the filter bottle cap:

a first sealing wall 2002, a second sealing wall 2003;

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. The rotary water-locking water-purifying filter element comprises a filter flask and a filter flask cover, wherein the filter flask cover is connected with the open end of the filter flask; the filter bottle cap is characterized in that:

1 or more than 1 flow path guide;

when the number of the flow paths is 1, the flow paths can rotate around the central axis of the filter element, the flow paths form an inner layer flow path in the flow paths, the inner layer flow path is provided with a one-way valve, and the filter element with two flow paths is formed; the flow path guide rotates under the action of the mounting head so as to open or close a flow path formed between the flow path guide outer wall and the filter bottle cap inner wall;

when the number of the flow path guides is more than 1, the innermost flow path guide is fixedly arranged, the flow path guides of the other outer layers are coaxially sleeved on the innermost flow path guide in a layering manner, and each flow path guide of the outer layers can rotate around the inner layer flow path guide next to the flow path guide of the outer layer; an inner layer flow path is formed in the innermost layer flow path guide, and a one-way valve is arranged in the inner layer flow path; an inner wall of the flow path guide of each outer layer and an outer wall of the inner layer flow path guide adjacent to the inner wall form an outer layer flow path, and a sealing part is arranged in each outer layer flow path; an outermost flow path is formed by the guide outer wall of the outermost flow path and the inner wall of the filter cap, and a sealing part is arranged in the outermost flow path; the flow path guide rotates around the adjacent flow path guide in sequence under the action of the mounting head so as to open or close all flow paths;

When the number of the flow path guides is 1, the flow path guide is referred to as a first flow path guide; when the number of flow paths is 2, the flow paths are respectively called a second flow path and a first flow path from inside to outside; when the number of the flow paths is 3, the flow paths are respectively called a third flow path, a second flow path and a first flow path from inside to outside; when the flow path guides are n, and so on;

a first water-through opening is formed in the inner wall of the filter bottle cover, a first sealing groove and a first sealing hole are formed in the outer wall of the first end of the first flow path guide, the first sealing hole is connected to the upper portion of the first sealing groove, a first sealing ring is arranged in the first sealing groove, a first sealing gasket is arranged in the first sealing hole, the first sealing gasket rotates to the position of the first water-through opening to be aligned, the first water-through opening is sealed, the first flow path is closed, and conversely, the first flow path is opened; or the filter bottle cap is provided with a first trapezoid step, the inner stair end face of the first trapezoid step is provided with a fourth sealing gasket groove and a fourth water opening, the fourth sealing gasket groove is filled with a fourth sealing gasket, the first flow path guide is provided with a second trapezoid step, the outer stair end face of the second trapezoid step is provided with a fifth water opening, the fourth water opening and the fifth water opening are aligned, the first flow path is opened, and conversely, the first flow path is closed.

2. A rotary lock water purification cartridge as recited in claim 1, wherein: the outermost flow path guide is rotatable about its adjacent inner flow path guide in a direction opposite to the direction of twist upon insertion of the cartridge into the mounting head under the torque of the mounting head and urges the remaining outer flow path guides to rotate about its adjacent inner flow path guide to open all flow paths.

3. A rotary lock water purification cartridge as recited in claim 1, wherein: the flow path guide of the next inner layer can rotate around the flow path of the next inner layer in the opposite direction to the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head, and the flow path of the next inner layer is pushed to rotate around the flow path guide of the outer layer so as to open all the flow paths.

4. A rotary lock water purification cartridge as recited in claim 2, wherein: the installation head used in cooperation provides torsion force for the first flow path guide through the torsion structure.

5. The rotary lock water purification cartridge of claim 4, wherein: the installation head that the cooperation was used is equipped with the torsion arm, and the installation head provides torsional force for first flow path guide through torsion structure.

6. A rotary lock water purification cartridge as recited in claim 5, wherein: when the flow path guides are 3:

a third flow path guide fixedly arranged, wherein a first end of the third flow path guide extends towards the outlet end of the filter bottle cap, a fourth flow path is formed in the third flow path guide, and a one-way valve is arranged in the fourth flow path;

a second flow path guide coaxially provided outside the third flow path guide and rotatable about the third flow path guide, a third flow path being formed between the second flow path guide inner wall and the third flow path guide outer wall, the third flow path having a third seal portion;

a first flow path guide coaxially arranged outside the second flow path guide and rotatable around the second flow path guide, wherein a second flow path is formed between the first flow path guide inner wall and the second flow path guide outer wall, a first flow path is formed between the first flow path guide outer wall and the filter cap inner wall, the second flow path has a second sealing portion, and the first flow path has a first sealing portion;

the first flow path guide can rotate around the second flow path guide in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head, and the second flow path guide is pushed to rotate around the third flow path guide, so that the first flow path, the second flow path and the third flow path are opened.

7. A rotary lock water purification cartridge as recited in claim 5, wherein: when the flow path guides are 2:

the second flow path guide is fixedly arranged, the first end of the second flow path guide extends towards the outlet end of the filter bottle cap, a third flow path is formed in the second flow path guide, and a one-way valve is arranged in the third flow path;

the first flow path guide can rotate around the second flow path guide in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head, so that the first flow path and the second flow path are opened.

8. A rotary lock water purification cartridge as recited in claim 5, wherein: when the flow path guide is 1:

a first flow path guide, wherein the first flow path guide is fixedly arranged, a first end of the first flow path guide extends towards an outlet end of the filter bottle cap, a second flow path is formed in the first flow path guide, and a one-way valve is arranged in the second flow path;

A first flow path is formed between the first flow path guide outer wall and the filter bottle cap inner wall, the second flow path is provided with a second sealing part, and the first flow path is provided with a first sealing part;

the first flow path guide can rotate around the central axis of the filter element in the opposite direction of the torsion direction when the filter element is inserted into the mounting head under the torsion action of the mounting head so as to open the first flow path.

9. The spin lock water purification cartridge of any one of claims 6-7, wherein the first seal ring and first gasket are integrally designed, the first seal ring, first gasket, and the inner wall of the cartridge cap of the first flow path guide forming the first seal portion therebetween; the first flow path is led to and is equipped with second water-passing opening on the inner wall, be equipped with second seal groove and second sealed hole on the outer wall of second flow path is led to the second sealed hole is in succession on second seal groove upper portion, be equipped with the second sealing washer in the second seal groove, be equipped with the second sealing washer in the second sealed hole, second sealing washer and second sealing washer are integrated into one piece design, second flow path is led second sealing washer, second sealing washer with form between the first flow path is led to the inner wall second sealing part, second water-passing opening position rotates to align with the second sealing washer position, and second water-passing opening is sealed, and the second flow path is sealed.

10. The rotary water-locking water-purifying filter element as claimed in claim 6, wherein a third water-passing opening is formed in the inner wall of the second flow path guide, a third sealing groove and a third sealing hole are formed in the outer wall of the third flow path guide, the third sealing hole is connected to the upper portion of the third sealing groove, a third sealing ring is installed in the third sealing groove, a third sealing pad is installed in the third sealing hole, the third sealing ring and the third sealing pad are integrally designed, the third sealing portion is formed among the third sealing ring, the third sealing pad and the inner wall of the second flow path guide, the third water-passing opening rotates to be aligned with the third sealing pad, the third water-passing opening is sealed, and the third flow path is closed.

11. The rotary water-locking and purifying filter element according to any one of claims 6 to 7, wherein the fourth gasket and the outer end surface of the second trapezoid step are pressed to form a first sealing part; the inner step end face of the second trapezoid step of the first flow path guide is provided with a sixth sealing gasket groove and a sixth water passing opening, the sixth sealing gasket groove is filled with a sixth sealing gasket, the second flow path guide is provided with a third trapezoid step, the outer step end face of the third trapezoid step is provided with a seventh water passing opening, the outer end faces of the sixth sealing gasket and the third trapezoid step are tightly pressed to form a second sealing part, and when the sixth water passing opening and the seventh water passing opening are aligned, the second flow path is opened.

12. The rotary water-locking water-purifying filter element of claim 6, wherein an eighth gasket groove and an eighth water-passing opening are formed in an inner stepped end face of a third trapezoid step of the second flow path guide, the eighth gasket groove is filled with an eighth gasket, the third flow path guide is provided with a fourth flat end face, a ninth water-passing opening is formed in the fourth flat end face, the eighth gasket and the fourth flat end face are pressed to form a third sealing part, and when the eighth water-passing opening and the ninth water-passing opening are aligned, the third flow path is opened.

13. The rotary lock water purification cartridge of claim 6, wherein the cartridge cap inner wall is provided with a first limit bump defining a rotational position of the first flow path guide; the inner wall of the first flow path guide is provided with a second limiting lug, so that the first flow path guide can drive the second flow path guide to rotate and limit the rotating position of the second flow path guide; and a limit bump III is arranged on the inner wall of the second flow path guide to limit the rotation position of the second flow path guide.

14. A rotary lock water purification cartridge as claimed in any one of claims 7 to 8 wherein the cap inner wall is provided with a first stop tab defining the rotational position of the first flow path guide.

15. The rotary lock water purification cartridge of claim 6, wherein the filter flask is provided with:

the first filter material assembly comprises a first upper end cover, a first lower end cover and a first filter material, wherein the first upper end cover and the first lower end cover are respectively arranged at two ends of the first filter material, and the first upper end cover is in sealing connection between the first flow path guide and the second flow path guide;

the upper end of the inner cylinder is in sealing connection between the second flow path guide and the third flow path guide, and the lower end of the inner cylinder is in sealing connection with the inner wall of the first lower end cover;

the second filter material assembly and the third filter material assembly are positioned in the inner cylinder, the second filter material assembly comprises a second upper end cover, a filter material cylinder and a second filter material, the second filter material is arranged in the filter material cylinder, the upper end of the second upper end cover is in sealing connection with the lower end of the third flow path guide and props against the one-way valve, the third filter material assembly comprises a third filter material, a third upper end cover and a third lower end cover, the third upper end cover and the third lower end cover are respectively arranged at the two ends of the third filter material, the third upper end cover is in sealing connection with the lower end of the filter material cylinder, and the third lower end cover is in sealing connection with the bottom end of the inner cylinder to form the sealing of the bottom end of the inner cylinder;

the waterway formed by the gap between the outer side of the first filter material component and the inner wall of the filter flask is communicated with the first flow channel;

The waterway formed by the gap between the inner side of the first filter material component and the outer side of the inner cylinder is communicated with the second waterway;

gaps formed between the inner wall of the inner cylinder and the outer parts of the second filter material assembly and the third filter material assembly are communicated with the third flow path;

the second filter material component and the third filter material component jointly form an internal water channel, and the internal water channel is communicated with the fourth flow path through a one-way valve.

16. The rotary lock water purification cartridge of claim 7, wherein the filter flask is provided with:

the fourth filter material assembly comprises a central tube, a fourth upper end cover and a fourth filter material, wherein the fourth filter material is wound on the central tube, the fourth upper end cover is arranged at the upper end of the fourth filter material, and the fourth upper end cover is in sealing connection between the first flow path guide and the second flow path guide;

the gap waterway formed between the upper end surface of the fourth filter material and the inner side of the third upper end cover is communicated with the second flow channel;

the central tube is an internal waterway, and the internal waterway is communicated with the third flow path through a one-way valve.

17. The rotary lock water purification cartridge of claim 8, wherein the filter flask is provided with:

The first filter material assembly comprises a first upper end cover, a first lower end cover and a first filter material, wherein the first upper end cover and the first lower end cover are respectively arranged at the two ends of the first filter material, and the first upper end cover is in sealing connection with the second end of the first flow path guide;

the first filter assembly forms an internal waterway which is communicated with the second channel.

18. A mounting head capable of mating with a spin lock water purification cartridge according to any one of claims 1 to 5, 10, 12, 13, 15 to 17:

when the spin lock water purification cartridge has 3 flow path guides, the mounting head has: a first sealing wall, a second sealing wall, a third sealing wall and a fourth sealing wall; the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall and the third sealing wall can be inserted into the upper end of the first flow path guide and form a seal with the second sealing wall; the second flow path guide upper end can be inserted between the third sealing wall and the fourth sealing wall, and the second flow path guide upper end and the third sealing wall form a seal; the fourth sealing wall can be inserted into the upper end of the third flow path guide and form a seal with the fourth sealing wall; the lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate; when the filter element is rotatably inserted into the mounting head, the torsion arm is inserted into the torsion socket, so that the first flow path guide rotates in the opposite direction to the direction of rotatably inserting the filter element, and the first flow path guide pushes the second flow path guide to complete the opening of the first flow path, the second flow path and the third flow path; when the filter element is disassembled, the filter element is closed;

When the spin lock water purification cartridge has 2 flow path guides, the mounting head has: a first sealing wall, a second sealing wall, and a fourth sealing wall; the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall and the third sealing wall can be inserted into the upper end of the first flow path guide and form a seal with the second sealing wall; the fourth sealing wall can be inserted into the upper end of the second flow path guide and forms a seal with the fourth sealing wall; the lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate; when the filter element is rotatably inserted into the mounting head, the torsion arm is inserted into the torsion socket, so that the first flow path guide forms rotation in the opposite direction to the direction of rotatably inserting the filter element, and the opening of the first flow path and the second flow path is completed; when the filter element is disassembled, the filter element is closed;

when the spin lock water purification cartridge has 1 flow path guide, the mounting head has: a first sealing wall, a second sealing wall; the upper end of the filter bottle cap can be inserted between the first sealing wall and the second sealing wall, and the filter bottle cap and the first sealing wall form a seal; the second sealing wall can be inserted into the upper end of the first flow path guide and forms a seal with the second sealing wall; the lower end of the second sealing wall is provided with a torsion arm which can be inserted into a torsion socket corresponding to the first flow path guide to drive the first flow path guide to rotate so as to finish the opening of the first flow path; when the filter element is disassembled, the filter element is closed in the opposite way.