A convenient outdoor ultrafiltration water purifier

Abstract

The present invention discloses an outdoor convenient ultrafiltration water purifier, which relates to the field of water purifiers, including a shell, a first cavity and a second cavity are arranged in the shell, a piston is arranged in the first cavity, a water inlet connected to the first cavity is arranged on the side wall of the shell, and also includes: a first one-way valve, which is arranged at one end of the water inlet facing the first cavity; a filter ring, which is arranged in the shell and rotatably arranged around the first cavity, and a part of it is arranged between the water inlet and the first one-way valve; a linkage component, which is used to link the filter ring to rotate when the piston descends in the first cavity. The present invention is that when the piston descends to drain water, the first one-way valve restricts the water inlet from passing through the water flow, and at the same time, the linkage component links the filter ring to rotate to switch the other part of the filter ring to block between the first one-way valve and the water inlet for the next water absorption, thereby ensuring the filtering function and avoiding the problem of easy blockage.

Description

Technical Field

[0001] The invention relates to the technical field of water purifiers, and in particular to an outdoor convenient ultrafiltration water purifier. Background Art

[0002] An outdoor water purifier is a drinking water supply device that is convenient to carry with you when engaging in outdoor activities. It does not need to be installed on a faucet when in use, and does not require tap water pressure. It only requires manpower to immediately purify outdoor rainwater, stream water, river water, lake water and other natural water into safe drinking water that is sterile, free of suspended pollutants and other harmful substances and can be directly drunk. The existing outdoor water purifiers can basically meet daily use needs, but there are still some shortcomings that need to be improved.

[0003] Patent document CN216584467U disclosed a portable outdoor water purifier on the publication date of May 24, 2022, and its technical solution includes: a shell and a protective cover; the protective cover is detachably connected to the shell; a water outlet is provided on the protective cover; a water inlet is provided on the shell; a first cavity, a second cavity and a third cavity are provided in the shell; one end of the water distribution component is used to connect to the raw water source, and the other end extends into the second cavity after passing through the water inlet; the water distribution component is detachably connected to the shell; a filter component for filtering raw water is provided in the first cavity; the filter component is connected to the water outlet; a pressurizing component for pressurizing the raw water in the second cavity is provided in the third cavity; the second cavity is respectively connected to the first cavity and the third cavity; the second cavity is connected to the water inlet; the present application has the advantages of large flow rate, and when the water purifier is loaded with raw water, the raw water is directly loaded through the water distribution component on the water inlet, which is simple and convenient to operate.

[0004] As in the prior art of the above-mentioned patent, a filtering structure must be provided at the water inlet end of the water purifier to filter out large particles of impurities such as sand, gravel, and soil. Obviously, such pollutants are present in large amounts in outdoor water sources. The filtering structure provided for this purpose in the water purifier is used frequently, and has a large filtering volume and a large amount of dirt produced, which causes the filtering structure here to be easily blocked and requires frequent cleaning or replacement. Therefore, there is an urgent need for an outdoor convenient ultrafiltration water purifier to solve the above-mentioned problem. Summary of the invention

[0005] The purpose of the present invention is to provide an outdoor convenient ultrafiltration water purifier to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A convenient outdoor ultrafiltration water purifier comprises a shell, a first cavity and a second cavity are arranged in the shell, a piston is arranged in the first cavity, a water inlet connected to the first cavity is arranged on the side wall of the shell, and also comprises: a first one-way valve, which is arranged at one end of the water inlet facing the first cavity; a filter ring, which is arranged in the shell and rotatably arranged around the first cavity, and a part of the filter ring is arranged between the water inlet and the first one-way valve; a linkage component, which is used to link the filter ring to rotate when the piston descends in the first cavity.

[0008] Preferably, a rod body is fixedly provided on the upper end of the piston, the rod body passes through the upper end of the shell and an operating handle is fixedly provided on the upper end of the rod body.

[0009] Preferably, the linkage assembly includes a linkage part slidably arranged in the shell, a detection ring fixedly connected to the linkage part is movably arranged in the first cavity, a linkage warehouse is arranged in the shell, a linkage rod is rotatably arranged in the linkage warehouse, the lower end of the linkage rod is coaxially connected to a gear through a one-way bearing, the outer side of the filter ring is provided with a gear ring meshing with the gear, and the upper end of the linkage rod is spirally sleeved with a linkage sleeve fixedly connected to the linkage part.

[0010] Preferably, the outer wall of the upper end of the linkage rod is provided with a spiral wire, and the inner wall of the linkage sleeve is provided with a spiral groove slidably connected to the spiral wire.

[0011] Preferably, the upper end of the detection ring is connected to the top surface of the first cavity through an airbag, a first elastic member is provided inside the airbag to prevent the detection ring from approaching the top surface of the first cavity, and an air inlet and an air outlet connected to the airbag are provided at the upper end of the shell.

[0012] Preferably, a surrounding bin matching the filter ring is provided on the shell, a plurality of baffles are evenly provided on the outer circumference of the filter ring, and the outer sides of the baffles are fitted with the inner wall of the surrounding bin.

[0013] Preferably, the side wall of the shell is provided with a window connected to the surrounding compartment, and the air outlet is connected to the window through an air flow channel opened inside the shell.

[0014] Preferably, a water flow channel connecting the first cavity and the second cavity is provided at the lower end of the shell, a water outlet is provided at the upper end of the second cavity, and a filter element assembly for connecting the water flow channel and the water outlet is detachably provided in the second cavity.

[0015] Preferably, the filter element assembly includes a first filter element and a second filter element, the upper end of the first filter element is connected to the water outlet, and the lower end is connected to the second filter element, and a limiting assembly for connecting and limiting the second filter element is provided in the water flow channel.

[0016] Preferably, the limiting assembly comprises a butt joint tube elastically slidably arranged in the water flow channel, the side wall of the second filter element is provided with a butt joint hole matching the butt joint tube, and the lower side of the butt joint tube is provided with a lever sliding through the bottom surface of the shell.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] The outdoor convenient ultrafiltration water purifier is provided with a filter ring. When the piston rises in the first cavity to absorb water, the water flow sucked into the water inlet passes through the corresponding part of the filter ring at this time to filter out impurities and then enter the first cavity. When the piston descends to drain water, the first one-way valve restricts the water inlet from passing water. At the same time, the linkage component links the filter ring to rotate to switch the other part of the filter ring to be blocked between the first one-way valve and the water inlet for the next water absorption. This ensures the filtering function and avoids the problem of easy blockage.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention;

[0024] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 A schematic diagram of a front cross-sectional structure provided by an embodiment of the present invention;

[0026] Figure 5 The embodiment of the present invention provides Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 The embodiment of the present invention provides Figure 4Schematic diagram of the enlarged structure at C in the middle;

[0028] Figure 7 A schematic diagram of a side cross-sectional structure provided by an embodiment of the present invention;

[0029] Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0030] Description of reference numerals:

[0031] 1. Shell; 2. First cavity; 3. Second cavity; 4. Piston; 5. Water inlet; 6. First non-return valve; 7. Filter ring; 8. Rod body; 9. Operating handle; 10. Linkage member; 11. Detection ring; 12. Linkage bin; 13. Linkage rod; 14. One-way bearing; 15. Gear; 16. Gear ring; 17. Linkage sleeve; 18. Spiral wire; 19. Spiral groove; 20. Air bag; 21. First elastic member; 22. Air inlet; 23. Air outlet; 24. Surrounding bin; 25. Baffle bar; 26. Window; 27. Air flow channel; 28. Water flow channel; 29. ​​Water outlet; 30. First filter element; 31. Second filter element; 32. Butt joint; 33. Butt joint hole; 34. Push rod; 35. Second non-return valve; 36. Second elastic member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] See also Figure 1-8 An outdoor convenient ultrafiltration water purifier provided by an embodiment of the present invention includes a shell 1, a first cavity 2 and a second cavity 3 are arranged in the shell 1, a piston 4 is arranged in the first cavity 2, and a water inlet 5 connected to the first cavity 2 is arranged on the side wall of the shell 1. It also includes: a first one-way valve 6, which is arranged at one end of the water inlet 5 facing the first cavity 2; a filter ring 7, which is arranged in the shell 1 and rotatably arranged around the first cavity 2, and a part of it is arranged between the water inlet 5 and the first one-way valve 6; a linkage component, which is used to link the filter ring 7 to rotate when the piston 4 descends in the first cavity 2.

[0034] Specifically, the shell 1 is in the form of two parallel cylinders; the first cavity 2 and the second cavity 3 are two parallel cylindrical cavities; the first cavity 2 is used to pump water from the outside, and then guide the water flow into the second cavity 3; the second cavity 3 is used for multi-stage filtration of the water flow; the piston 4 slides up and down in close contact with the inner wall of the first cavity 2, thereby realizing water pumping and drainage in the space below the piston 4; the water inlet 5 is close to the lower end of the first cavity 2 and is arranged on the side; the water inlet 5 can be connected to the water pumping pipe for use; the first one-way valve 6 controls the water flow to pass only from the water inlet 5 to the first cavity 2; the filter ring 7 is annular and arranged around the outer side of the lower end of the first cavity 2. The axial direction of the filter ring 7 coincides with or is parallel to the axial direction of the first cavity 2. The filter ring 7 is used to filter impurities such as sand, gravel and soil. The water inlet 5 is located on the outer side of the filter ring 7, and the first one-way valve 6 is arranged on the inner side of the filter ring 7. When the piston 4 descends, the linkage assembly rotates the filter ring 7 as follows: the filter ring 7 rotates around the first cavity 2 at a certain angle, and the part of the filter ring 7 that has been used for filtering can be rotated away from the position corresponding to the water inlet 5, while the part of the filter ring 7 that has not been used for filtering can be rotated to correspond to the water inlet 5. In actual use of the present technical solution, the piston 4 rises before the first cavity 2, so that a negative pressure is generated in the space below the piston 4 in the first cavity 2 that is connected to the water inlet 5, so as to promote the water inlet 5 to absorb water. At this time, the water sucked in by the water inlet 5 passes through the corresponding part of the filter ring 7, so as to filter the impurities in the water flow and then enter the first cavity 2. Subsequently, when the piston 4 descends, it pushes the water flow in the first cavity 2 downward. At this time, the first one-way valve 6 restricts the water flow from flowing back to the water inlet 5, and the piston 4 rotates through the linkage assembly to rotate the filtered part of the filter ring 7 away from the position corresponding to the water inlet 5, and the other part of the filter ring 7 that has not been filtered is blocked between the first one-way valve 6 and the water inlet 5, so that it can be filtered and used during the next water absorption, thereby ensuring the filtering function and avoiding the problem of easy blockage.

[0035] Compared with the prior art, an outdoor convenient ultrafiltration water purifier proposed in an embodiment of the present invention is provided with a filter ring 7. When the piston 4 rises in the first cavity 2 to absorb water, the water flow sucked in by the water inlet 5 passes through the corresponding part of the filter ring 7 at this time to filter out impurities and then enter the first cavity 2. When the piston 4 descends to drain water, the first one-way valve 6 restricts the water flow from passing through the water inlet 5. At the same time, the linkage component links the filter ring 7 to rotate to switch the other part of the filter ring 7 between the first one-way valve 6 and the water inlet 5 for the next water absorption. The filtering function is ensured and the problem of easy blockage is avoided.

[0036] As the preferred technical solution of this embodiment, a rod body 8 is fixedly provided on the upper end of the piston 4, the rod body 8 passes through the upper end of the shell 1 and an operating handle 9 is fixedly provided on the upper end of the rod body 8. Specifically, the rod body 8 is coaxial with the first cavity 2; the rod body 8 is rotatably provided; a baffle ring is provided at one end of the rod body 8 connected to the piston 4 and is spaced apart from the piston 4. The inside of the rod body 8 is hollow, and air holes are provided at both the upper and lower ends, and the lower air hole is provided between the piston 4 and the baffle ring, and the upper air hole extends to the lower side of the operating handle 9 and is hidden; the provision of the air hole facilitates the balance of the space of the first cavity 2 on the upper side of the piston 4 with the external air pressure; the operating handle 9 is used to facilitate the movement of the piston 4, and under the damping of the piston 4 in the first cavity 2, the operating handle 9 can stop at any position and angle; one end of the operating handle 9 is connected to the upper end of the rod body 8, and the other end is suspended.

[0037] As the preferred technical scheme of this embodiment, the linkage assembly includes a linkage member 10 slidably arranged in the shell 1, a detection ring 11 fixedly connected to the linkage member 10 is movably arranged in the first cavity 2, a linkage warehouse 12 is arranged in the shell 1, a linkage rod 13 is rotatably arranged in the linkage warehouse 12, the lower end of the linkage rod 13 is coaxially connected with a gear 15 through a one-way bearing 14, a gear ring 16 meshing with the gear 15 is sleeved on the outer side of the filter ring 7, and a linkage sleeve 17 fixedly connected to the linkage member 10 is spirally sleeved on the upper end of the linkage rod 13. Specifically, the linkage member 10 slides in the entity of the shell 1 in a direction parallel to the axial direction of the first cavity 2; the detection ring 11 is sleeved on the rod body 8 and can move axially in the first cavity 2; a connecting part that slides through the inner wall of the first cavity 2 is connected between the detection ring 11 and the linkage member 10; the lower end of the linkage member 10 movably extends into the linkage warehouse 12 and is fixedly connected to the linkage sleeve 17; the axial direction of the linkage rod 13 is parallel to the filter ring 7. The axial directions of the mesh ring 7 are arranged parallel to each other; the gear ring 16 is arranged at the upper end of the filter ring 7; the one-way bearing 14 is arranged so that the linkage rod 13 rotates in linkage when the linkage sleeve 17 is lowered, and the rotation direction of the linkage rod 13 corresponds to the non-rotation of the one-way bearing 14 itself, thereby transmitting the rotation of the linkage rod 13 to the gear 15; and the linkage rod 13 rotates in linkage when the linkage sleeve 17 is raised, and the rotation direction of the linkage rod 13 corresponds to the rotatable one-way bearing 14 itself, so that the rotation of the linkage rod 13 is not transmitted to the gear 15, and the gear 15 does not rotate, and the filter ring 7 will not be driven to rotate through the gear ring 16; the outer wall of the upper end of the linkage rod 13 is provided with a spiral wire 18, and the inner wall of the linkage sleeve 17 is provided with a spiral groove 19 slidably connected to the spiral wire 18; the pitch of the spiral wire 18 meets the lifting and lowering of the linkage sleeve 17, so that the spiral wire 18 slides with the spiral groove 19, thereby driving the linkage rod 13 to rotate.

[0038] As a preferred technical solution of this embodiment, the upper end of the detection ring 11 is connected to the inner top surface of the first cavity 2 through the airbag 20, and a first elastic member 21 is arranged on the inner side of the airbag 20 to prevent the detection ring 11 from approaching the inner top surface of the first cavity 2. The upper end of the shell 1 is provided with an air inlet 22 and an air outlet 23 connected to the airbag 20. Specifically, the airbag 20 can be inflated or deflated; the lifting and lowering of the detection ring 11 can correspond to the contraction and expansion of the airbag 20; the first elastic member 21 can preferably be a spring, and the first elastic member 21 keeps pushing the detection ring 11 away from the inner top surface of the first cavity 2, that is, keeps the airbag 20 expanded; at the same time, the detection ring 11 is maintained at the lowest position of the lifting stroke under the action of the first elastic member 21, and then drives the linkage sleeve 17 to maintain a downward movement tendency through the linkage member 10; the air inlet 22 is connected to the outside setting; both the air inlet 22 and the air outlet 23 are provided with a one-way valve, so that the airbag 20 can only take in air through the air inlet 22, and can only exhaust air through the air outlet 23.

[0039] In actual use, the present technical solution is first driven by the operating handle 9 to drive the rod body 8, and then drives the piston 4 to rise in the first cavity 2, the first cavity 2 can absorb water through the water inlet 5, and when the piston 4 rises to a certain height, it starts to push the detection ring 11 upward, and the detection ring 11 squeezes the first elastic member 21 upward, and the first elastic member 21 compresses and stores elastic potential energy. At this time, the detection ring 11 drives the linkage sleeve 17 to rise through the linkage member 10, and the linkage sleeve 17 drives the linkage rod 13 to rotate, but the linkage rod 13 will not drive the gear 15 to rotate through the one-way bearing 14, that is, the filter ring 7 Keep still so that the filter ring 7 keeps a fixed part to perform filtering work; then, the piston 4 rises to the highest position and begins to fall, then the first elastic member 21 releases elastic potential energy, and the detection ring 11 first falls with the piston 4. At this time, the water inlet 5 does not pass water. In addition, the detection ring 11 drives the linkage sleeve 17 to fall through the linkage member 10, and the linkage sleeve 17 drives the linkage rod 13 to rotate. The rotation direction of the linkage rod 13 at this time can drive the gear 15 to rotate through the one-way bearing 14, and the gear 15 then drives the filter ring 7 to rotate through the gear ring 16 to realize the switching function of the filter ring 7. In addition, when the detection ring 11 rises, the airbag 20 is compressed and exhausted, and when the detection ring 11 falls, the airbag 20 expands and inflates.

[0040] As a preferred technical solution of this embodiment, a surrounding bin 24 matching the filter ring 7 is provided on the shell 1, and a plurality of baffles 25 are evenly provided on the outer circumference of the filter ring 7. The outer sides of the baffles 25 are fitted with the inner wall of the surrounding bin 24. Specifically, the surrounding bin 24 is arranged around the first cavity 2, and the part corresponding to the water inlet 5 is cross-arranged with the water inlet 5; the baffles 25 are protrudingly arranged on the outer wall of the filter ring 7, and two adjacent baffles 25 and the filter ring 7 form a filtering space in the surrounding bin 24, which can store part of the filtered dirt, so as to avoid the dirt on the surface of the filter ring 7 being directly squeezed by the inner wall of the surrounding bin 24 to cause blockage when the filter ring 7 rotates subsequently.

[0041] As a preferred technical solution of this embodiment, a window 26 communicating with the surrounding bin 24 is provided on the side wall of the shell 1, and the air outlet 23 is connected to the window 26 through an air flow channel 27 opened inside the shell 1. Specifically, the window 26 is provided at a position close to the water inlet 5 following the rotation switching direction of the filter ring 7; that is, the part of the filter ring 7 that rotates away from the water inlet 5 after the above process immediately corresponds to the window 26; the correspondence between the filter ring 7 and the water inlet 5 or the window 26 is as follows: the filter between two adjacent baffles 25 is The mesh ring 7 part corresponds to the water inlet 5 or the window 26, so that the baffle 25 can isolate the adjacent filter ring 7 parts separated by the baffle 25; the airflow channel 27 is connected to the end of the window 26 and is set on the inner side of the filter ring 7, that is, when the airflow discharged from the air outlet 23 is blown out through the airflow channel 27, it blows from the inner side of the filter ring 7 to the outside, thereby flowing in the opposite direction of the dirt attached to the filter ring 7 after being filtered, thereby promoting the dirt attached to the filter ring 7 to be blown out of the window 26, achieving the effect of dirt falling off and cleaning. Furthermore, the compression of the airbag 20 corresponds to the rise of the piston 4, that is, at this time, the filter ring 7 does not rotate, so it can be blown and cleaned in a static state, ensuring accurate and effective cleaning effect.

[0042] In another embodiment proposed by the present invention, a water flow channel 28 connecting the first cavity 2 and the second cavity 3 is provided at the lower end of the shell 1, and a water outlet 29 is provided at the upper end of the second cavity 3. A filter element assembly for connecting the water flow channel 28 and the water outlet 29 is detachably provided in the second cavity 3. Specifically, one end of the water flow channel 28 is connected to the lower end of the first cavity 2, and the other end is radially connected to the side of the second cavity 3; the water outlet 29 is bent to the side and can be connected to the water outlet pipe, and a groove is provided on the lower side of the operating handle 9 to accommodate the water outlet 29 when stored; the filter element assembly is used to perform multi-stage filtration on the water flow drawn into the first cavity 2 to ensure that the water source discharged from the final water outlet 29 can be safely used.

[0043] As a preferred technical solution of this embodiment, the filter element assembly includes a first filter element 30 and a second filter element 31. The upper end of the first filter element 30 is connected to the water outlet 29, and the lower end is connected to the second filter element 31. A limiting assembly for connecting and limiting the second filter element 31 is arranged in the water flow channel 28. Specifically, the first filter element 30 is preferably an ultrafiltration filter layer, which can filter Escherichia coli and other microorganisms and bacteria; the second filter element 31 is preferably a carbon fiber filter layer, which can filter organic pollutants and improve odors, etc.; preferably, the filter element assembly can increase the number of filter elements contained or adjust the type of filter elements as needed, and is not limited to the combination of the first filter element 30 and the second filter element 31; the lower end of the second cavity 3 is open; when the limiting assembly cancels the limit, the first filter element 30 and the second filter element 31 can be taken out from the bottom of the second cavity 3 for easy replacement.

[0044] As a preferred technical solution of this embodiment, the limit assembly includes a butt joint pipe 32 elastically slidably arranged in the water flow channel 28, a butt joint hole 33 matching the butt joint pipe 32 is arranged on the side wall of the second filter element 31, and a lever 34 slidingly penetrating the bottom surface of the shell 1 is arranged on the lower side of the butt joint pipe 32. Specifically, the butt joint pipe 32 is slidably arranged in the radial part of the water flow channel 28 pointing to the second cavity 3; a second one-way valve 35 is integrated in the butt joint pipe 32, and the second one-way valve 35 only limits the flow of water from the first cavity 2 to the second cavity 3; a second elastic member 36 is arranged at one end of the butt joint pipe 32 away from the second cavity 3, and the second elastic member 36 is arranged at the second elastic member 36. Part 36 keeps pushing the docking tube 32 toward the second cavity 3; when the second filter element 31 is installed, it needs to be rotated so that the docking hole 33 corresponds to the docking tube 32; then, under the action of the second elastic member 36, the docking tube 32 keeps the end portion embedded in the docking hole 33 to limit the second filter element 31, that is, to limit the entire filter element assembly in the second cavity 3; the bottom of the shell 1 is recessed to prevent the lever 34 from protruding downward; the setting of the lever 34 makes it convenient to operate the docking tube 32 to retreat into the water flow channel 28 when the filter element assembly is removed, thereby canceling the limit on the second filter element 31, and the filter element assembly can be taken out from the bottom of the second cavity 3.

[0045] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An outdoor convenient ultrafiltration water purifier, comprising a housing (1), wherein a first cavity (2) and a second cavity (3) are arranged in the housing (1), a piston (4) is arranged in the first cavity (2), and a water inlet (5) communicating with the first cavity (2) is arranged on a side wall of the housing (1), characterized in that: Also includes: A first one-way valve (6) is arranged at one end of the water inlet (5) facing the first cavity (2); A filter ring (7) is arranged in the housing (1) and is rotatably arranged around the first cavity (2), with a portion of the filter ring being arranged between the water inlet (5) and the first one-way valve (6); A linkage assembly, used to link the filter ring (7) to rotate when the piston (4) descends in the first cavity (2); A rod body (8) is fixedly provided on the upper end of the piston (4), the rod body (8) passes through the upper end of the housing (1) and an operating handle (9) is fixedly provided on the upper end of the rod body (8); The linkage assembly comprises a linkage member (10) slidably arranged in a housing (1); a detection ring (11) fixedly connected to the linkage member (10) is movably arranged in the first cavity (2); a linkage chamber (12) is arranged in the housing (1); a linkage rod (13) is rotatably arranged in the linkage chamber (12); a gear (15) is coaxially connected to the lower end of the linkage rod (13) via a one-way bearing (14); a gear ring (16) meshing with the gear (15) is sleeved on the outer side of the filter ring (7); and a linkage sleeve (17) fixedly connected to the linkage member (10) is spirally sleeved on the upper end of the linkage rod (13).

2. The outdoor convenient ultrafiltration water purifier according to claim 1, characterized in that: The outer wall of the upper end of the linkage rod (13) is provided with a spiral wire (18), and the inner wall of the linkage sleeve (17) is provided with a spiral groove (19) slidably connected to the spiral wire (18).

3. The outdoor convenient ultrafiltration water purifier according to claim 1, characterized in that: The upper end of the detection ring (11) is connected to the inner top surface of the first cavity (2) through the airbag (20); a first elastic member (21) is provided inside the airbag (20) to prevent the detection ring (11) from approaching the inner top surface of the first cavity (2); and an air inlet (22) and an air outlet (23) communicating with the airbag (20) are provided at the upper end of the shell (1).

4. The outdoor convenient ultrafiltration water purifier according to claim 3, characterized in that: The housing (1) is provided with a surrounding bin (24) matching the filter ring (7), a plurality of retaining bars (25) are evenly arranged on the outer circumference of the filter ring (7), and the outer sides of the retaining bars (25) are arranged in close contact with the inner wall of the surrounding bin (24).

5. The outdoor convenient ultrafiltration water purifier according to claim 4, characterized in that: The side wall of the shell (1) is provided with a window (26) connected to the surrounding bin (24), and the air outlet (23) is connected to the window (26) via an air flow channel (27) opened inside the shell (1).

6. The outdoor convenient ultrafiltration water purifier according to claim 1, characterized in that: The lower end of the shell (1) is provided with a water flow channel (28) connecting the first cavity (2) and the second cavity (3); the upper end of the second cavity (3) is provided with a water outlet (29); and a filter element assembly for connecting the water flow channel (28) and the water outlet (29) is detachably provided in the second cavity (3).

7. The outdoor convenient ultrafiltration water purifier according to claim 6, characterized in that: The filter element assembly comprises a first filter element (30) and a second filter element (31); the upper end of the first filter element (30) is connected to the water outlet (29), and the lower end is connected to the second filter element (31); a limiting assembly for connecting to and limiting the second filter element (31) is provided in the water flow channel (28).

8. The outdoor convenient ultrafiltration water purifier according to claim 7, characterized in that: The limit assembly comprises a butt joint pipe (32) elastically slidably arranged in the water flow channel (28); a butt joint hole (33) matching the butt joint pipe (32) is arranged on the side wall of the second filter element (31); and a lever (34) slidingly penetrating the bottom surface of the housing (1) is arranged on the lower side of the butt joint pipe (32).

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