A water purifier

Abstract

The present invention discloses a water purifier, which includes a housing of the water purifier and a filter element. A groove for inserting a filter bottle is provided on the outer side wall of the housing. The bottom of the groove is detachably connected to the filter bottle through a first limiting mechanism. A first inner cavity is provided inside the housing, and a second inner cavity communicating with the first inner cavity on one side is also provided inside the housing. The bottom surface of the second inner cavity is fixedly connected to a booster pump through a shock absorption mechanism. A water path with one end connected to the booster pump is provided inside the first inner cavity. The shock absorption mechanism includes a first gasket fixedly connected to the bottom surface of the second inner cavity at one end and a second gasket fixedly connected to the outer side wall of the booster pump at one end. The first gasket and the second gasket are fixedly connected through a first elastic connecting rod.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and particularly to a water purifier. Background Art

[0002] With the intensification of environmental pollution, purification devices such as water purifiers have entered people's daily lives.

[0003] In current water purifiers on the market, a booster pump is generally provided to boost the pressure of the filtered water for delivery. As is well known, the booster pump generates high-frequency vibrations during actual operation, which makes the water purifier produce relatively loud noise during actual operation. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a water purifier that can effectively reduce the noise generated by the operation of the booster pump.

[0005] A water purifier of the present invention includes a housing and a filter element of the water purifier. A groove for inserting a filter bottle is provided on the outer side wall of the housing. The bottom of the groove is detachably connected to the filter bottle through a first limiting mechanism. A first inner cavity is provided inside the housing, and a second inner cavity communicating with the first inner cavity on one side is also provided inside the housing. The bottom surface of the second inner cavity is fixedly connected to the booster pump through a shock absorption mechanism. A water path with one end connected to the booster pump is provided inside the first inner cavity. The shock absorption mechanism includes a first gasket fixedly connected to the bottom surface of the second inner cavity at one end and a second gasket fixedly connected to the outer side wall of the booster pump at one end. The first gasket and the second gasket are fixedly connected through a first elastic connecting rod.

[0006] A first water inlet, a first water outlet, and a second water outlet communicating with the water path are provided on the outer side wall of the housing. The filter bottle includes a first filter bottle and a second filter bottle. The groove includes a first groove for accommodating the first filter bottle and a second groove for accommodating the second filter bottle. The water path includes a first water inlet pipe with one end communicating with the first water inlet. The end of the first water inlet pipe away from the first water inlet passes through the bottom surface of the first groove and communicates with the first filter bottle. The first filter bottle is communicated with the booster pump located inside the second inner cavity through a first water pipe. The booster pump is communicated with the second filter bottle through a second water pipe passing through the bottom surface of the second groove. The second filter bottle is communicated with a fourth water pipe through a third water pipe. The end of the fourth water pipe away from the third water pipe communicates with the first water outlet. The second filter bottle is communicated with the second water outlet on the outer side wall of the housing through a fifth water pipe. A first solenoid valve for controlling the water flow is provided on the outer side wall of the first water pipe, and a second solenoid valve for controlling the water flow is provided on the outer side wall of the fifth water pipe. The bottom surfaces of the first groove and the second groove are both provided with a first limiting mechanism for detachably connecting the filter bottle.

[0007] The first limiting mechanism includes a first base fixedly connected to the bottoms of the first groove and the second groove. A first turntable is rotatably connected to the outer sidewall of the first base. The outer sidewall of the first base on one side of the first turntable is fixedly connected to a second base through a first connection structure. The outer sidewall of the second base on the side away from the first connecting rod is slidably connected to a third base through a first elastic mechanism. The upper end surface of the first turntable is circumferentially and spacedly provided with a first serrated structure. The upper end surface of the second base is provided with a first through hole penetrating the lower end surface. The lower end surface of the third base is circumferentially provided with a second serrated structure that can be in limiting cooperation with the first serrated structure after passing through the first through hole. The center of the first turntable is provided with a second through hole. The inner sidewall of the second through hole is circumferentially and spacedly provided with first limiting protrusions. There is a first gap between each of the first limiting protrusions. The lower end of the filter bottle is provided with a first columnar protrusion. The upper end surface of the third base is provided with a third through hole through which the first columnar protrusion can pass into the first through hole and the second through hole. The outer sidewall of the lower end of the first columnar protrusion is circumferentially and spacedly provided with second limiting protrusions that can pass through the first gap and enter the second through hole, and there is a third gap between each of the second limiting protrusions.

[0008] The technical solution of the present invention has the following advantages compared with the limiting mechanisms of other existing filter bottles:

[0009] The connection method adopted in the technical solution of the present invention is a push-and-press type. That is, after the filter bottle in the technical solution is inserted into the first groove, the user only needs to press the filter bottle in the direction of the bottom of the first groove once, and the filter bottle can be connected to the first base at the bottom of the first groove; when the filter bottle is pressed in the direction of the first groove again, the filter bottle will be released from the limiting cooperation with the first base, so that the user can take out the filter bottle from the first base.

[0010] As a preference: The center of the upper end surface of the first base is provided with a third groove. A first spring is provided between the third groove and the lower end surface of the first turntable. The outer sidewall of the first turntable on the side away from the third groove is provided with a first serrated structure. The first serrated structure includes a plurality of first block-shaped protrusions circumferentially and spacedly arranged at the end of the first turntable away from the first base. The outer sidewall of the right side of the first block-shaped protrusion is provided with a first guiding inclined surface for the second serrated structure of the third base to slide.

[0011] As a preference: The first elastic mechanism includes a plurality of second connecting rods fixedly connected to the lower end surface of the third base. A second spring is sleeved on the outer sidewall of the second connecting rod. The outer sidewall of the second base on the side close to the third base is provided with a fourth through hole through which the second connecting rod can pass. One end of the second spring abuts against the lower end surface of the third base, and the end of the second spring away from the third base abuts against the upper end surface of the second base.

[0012] As a preference: on the outer side wall of the third base near one side of the first base, a second serrated structure is circumferentially provided. The second serrated structure includes a second columnar protrusion that can be embedded in the first through hole. On the lower end surface of the first columnar protrusion, a plurality of second serrations are circumferentially spaced. On the outer side wall of the left side of the second serration, a second guiding slope that can be fitted with the first guiding slope is provided. The lower end of the third through hole communicates with the lower end surface of the second columnar protrusion.

[0013] As a preference: on the lower end surface of the first through hole, a third columnar protrusion is provided. On the lower end surface of the third columnar protrusion, a plurality of third serrations are circumferentially provided. Between each of the third serrations, a fourth groove for the first serrated structure to be embedded is provided. On the inner side wall of the fourth groove, a third guiding slope for facilitating the embedding of the first serrated structure is provided. The lower end surface of the first through hole penetrates through the lower end surface of the third columnar protrusion.

[0014] As a preference: on the inner side wall of the third through hole, positioning sliding grooves for positioning the first columnar protrusion are circumferentially spaced. On the outer side wall of the first columnar protrusion, sliding blocks that can be embedded in the positioning sliding grooves are provided.

[0015] As a preference: on the upper end surface of the first turntable, a first block-shaped protrusion is provided every 36° circumferentially, and a second gap is provided between each of the first block-shaped protrusions.

[0016] As a preference: on the lower end surface of the first columnar protrusion, a second serration is provided every 10° circumferentially, and on the outer side wall of the left side of each second serration, a second guiding slope that can be fitted with the first guiding slope is provided.

[0017] As a preference: on the lower end surface of the third columnar protrusion, a third serration is provided every 20° circumferentially.

[0018] As a preference: on the inner side wall of the first through hole, a first limiting protrusion is provided every 36° circumferentially, and a first gap is provided between each of the first limiting protrusions. On the outer side wall of the first columnar protrusion, a second limiting protrusion is provided every 36° circumferentially, and a third gap is provided between each of the second limiting protrusions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 It is a cross-sectional view of a water purifier according to the present invention.

[0021] Figure 2 It is a schematic diagram of the water flow structure of a water purifier according to the present invention.

[0022] Figure 3 It is an exploded view of the first limiting mechanism in a water purifier according to the present invention.

[0023] Figure 4 This is a schematic structural view of the first limiting mechanism in a water purifier according to the present invention.

[0024] Figure 5 is Figure 3 The enlarged view at position A in Specific embodiments

[0025] The following will disclose multiple embodiments of the present invention with diagrams. For the sake of clarity, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] Embodiment 1: Refer to Figures 1 to 3 , in this embodiment, when the booster pump in the water purifier starts to work, the vibration of the booster pump itself will conduct the force generated by the vibration to the second gasket, and then the second gasket will transmit the vibration force to the first elastic connecting rod between the first gasket and the second gasket. At this time, the vibration of the second gasket will drive the first elastic connecting rod to sway left and right, and then partially eliminate the vibration force of the second gasket through the sway of the first elastic connecting rod. And part of the vibration force not eliminated by the first elastic connecting rod will be conducted to the first gasket. In this technical solution, both the first gasket and the second gasket are made of rubber material. Therefore, when the vibration force is conducted to the first gasket, the rubber first gasket will eliminate the force generated by the vibration through its own deformation.

[0028] Meanwhile, in this technical solution, after the filter bottle is inserted into the first groove of the water purifier, the first columnar protrusion on the lower end surface of the filter bottle will be inserted into the third through hole of the third base. Slide the slider on the outer side wall of the first columnar protrusion into the positioning chute on the inner side wall of the third through hole, and the first columnar protrusion can pass through the third through hole and the first through hole and enter above the second through hole. Pass the second limit protrusion on the outer side wall of the lower end of the first columnar protrusion through the first gap between the first limit protrusions on the inner side wall of the first through hole, and the first columnar protrusion can be inserted into the first through hole. When the first columnar protrusion is inserted into the second through hole, the lower end surface of the filter bottle just abuts against the upper end surface of the third base. At this time, the user can freely take out the filter bottle from the first groove. If it is necessary to fix the filter bottle in the first groove, the user only needs to continue to push the filter bottle in the direction of the first base. At this time, the lower end surface of the filter bottle will push the third base to slide in the direction of the second base, and the second spring between the second base and the third base will be compressed. The second columnar protrusion located on the lower end surface of the third base will be embedded in the first through hole of the second base. At this time, if the filter bottle is continuously pushed in the direction of the first base, the third base will push the second columnar protrusion to slide in the direction of the first turntable until the second serrated structure on the lower end surface of the second columnar protrusion passes through the first through hole and abuts against the upper end surface of the first serrated structure. At this time, the second guiding slope on the outer side wall of the left side of the second serration just abuts against the first guiding slope on the outer side wall of the right side of the first block protrusion. When the second serration slides in the direction of the first turntable, the first turntable is pushed by the second serration to slide in the direction of the second groove. At the same time, the first turntable is also subjected to the lateral pushing force generated after the sliding of the first guiding slope and the second guiding slope, and the first turntable will rotate clockwise or counterclockwise in the second groove. When the first turntable rotates circumferentially in the second groove, the first limit protrusion on the inner side wall of the second through hole of the first turntable will be located above the second limit protrusion on the outer side wall of the first columnar protrusion. At this time, the second limit protrusion on the outer side wall of the first columnar protrusion is blocked by the first limit protrusion, so the filter bottle cannot be taken out from the first groove. Eliminate the thrust that was previously applied to push the filter bottle into the first groove. At this time, the second spring between the second base and the third base will push the third base to slide away from the second base, and the second serration that was previously attached to the outer side wall of the first block protrusion will also slide away from the first turntable along with the third base until the second serration no longer touches the first block protrusion. And because there is a first spring between the first turntable and the bottom surface of the second groove, when the first turntable is no longer pushed by the second serration, the first turntable will slide in the direction of the third serration on the lower end surface of the second base due to the spring force of the first spring. At this time, the upper end surface of the first block protrusion of the first turntable will surely abut against the tip of the third serration. The first turntable will rotate clockwise or counterclockwise under the extrusion of the first guiding slope on the right side of the first block protrusion and the third guiding slope of the third serration, so that the first block protrusion is just embedded in the third groove between the two third serrations.

[0029] In this embodiment, the first connection structure between the first base and the second base is four connecting rods distributed on one end face of the first base.

[0030] In this embodiment, a flow meter is connected to the end of the fourth water pipe far from the third water pipe, and the outer side wall of the flow meter is connected to the first water outlet. That is, the water in the fourth water pipe flows into the flow meter and then flows from the flow meter to the first water outlet. Thus, the flow meter can complete the flow monitoring of the water flow in the fourth water pipe.

[0031] Embodiment 2: When the filter bottle needs to be taken out of the first groove again, the user only needs to press the filter bottle towards the first groove again, so that the second saw teeth on the lower end face of the third base pass through the first through hole and push the first turntable to rotate in the second groove. When the first gap is located above the second limit protrusion, the limit cooperation between the first limit protrusion and the second limit protrusion can be released. Thus, the filter bottle can be taken out of the first groove. The working principles of the first turntable, the second base and the third base in this embodiment are the same as those in Embodiment 1.

[0032] A water purifier of the present invention includes a housing 1 of the water purifier and a filter bottle 2. A groove 3 for inserting the filter bottle 2 is provided on the outer side wall of the housing 1. The bottom of the groove 3 is detachably connected to the filter bottle 2 through a first limiting mechanism 4. A first inner cavity 5 is provided in the housing 1. A second inner cavity 6 communicating with the first inner cavity 5 is also provided in the housing 1. The bottom surface of the second inner cavity 6 is fixedly connected to a booster pump 8 through a double-layer shock-absorbing mechanism 7. A water circuit 9 with one end connected to the booster pump 8 is provided in the first inner cavity 5. The double-layer shock-absorbing mechanism 7 includes a first gasket 10 fixedly connected to the bottom surface of the second inner cavity 6 at one end and a second gasket 11 fixedly connected to the outer side wall of the booster pump 8 at one end. The first gasket 10 and the second gasket 11 are fixedly connected through a first elastic connecting rod 12.

[0033] On the outer side wall of the housing 1, there are provided a first water inlet 13, a first water outlet 14 and a second water outlet 15 communicating with the water passage 9. The filter bottle 2 includes a first filter bottle and a second filter bottle. The groove 3 includes a first groove for accommodating the first filter bottle and a second groove for accommodating the second filter bottle. The water passage 9 includes a first water inlet pipe 20 with one end communicating with the first water inlet 13. The end of the first water inlet pipe 20 away from the first water inlet 13 passes through the bottom surface of the first groove and communicates with the first filter bottle. The first filter bottle communicates with a booster pump 8 located in the second inner cavity 6 through a first water pipe 21. The booster pump 8 communicates with the second filter bottle through a second water pipe 22 passing through the bottom surface of the second groove. The second filter bottle communicates with a fourth water pipe 24 through a third water pipe 23. The end of the fourth water pipe 24 away from the third water pipe 23 communicates with the first water outlet 14. The second filter bottle communicates with the second water outlet 15 on the outer side wall of the housing 1 through a fifth water pipe 25. A first electromagnetic valve 26 for controlling the water flow is provided on the outer side wall of the first water pipe 21. A second electromagnetic valve 27 for controlling the water flow is provided on the outer side wall of the fifth water pipe 25. A first limiting mechanism 4 for detachably connecting the filter bottle 2 is provided on the bottom surfaces of the first groove and the second groove.

[0034] The first limiting mechanism 4 includes a first base 28 fixedly connected to the bottoms of the first groove and the second groove. A first turntable 29 is rotatably connected to the outer side wall of the first base 28. The outer side wall of the first base 28 on the side where the first turntable 29 is provided is fixedly connected to a second base 31 through a first connection structure 30. The outer side wall of the second base 31 away from the first connection structure 30 is slidably connected to a third base 32 through a first elastic mechanism 60. First serrated structures 33 are circumferentially spaced on the upper end surface of the first turntable 29. A first through hole 34 penetrating the lower end surface is provided on the upper end surface of the second base 31. Second serrated structures 35 that can be in limiting cooperation with the first serrated structures 33 after passing through the first through hole 34 are circumferentially provided on the lower end surface of the third base 32. A second through hole 36 is provided at the center of the first turntable 29. First limiting protrusions 37 are circumferentially spaced on the inner side wall of the second through hole 36. A first gap 38 is provided between each of the first limiting protrusions 37. A first columnar protrusion 39 is provided at the lower end of the filter bottle 2. A third through hole 40 for the first columnar protrusion 39 to pass through and enter the first through hole 34 and the second through hole 36 is provided on the upper end surface of the third base 32. Second limiting protrusions 41 that can pass through the first gap 38 and enter the second through hole 36 are circumferentially spaced on the outer side wall of the lower end of the first columnar protrusion 39. And a third gap 42 is provided between each of the second limiting protrusions 41.

[0035] The technical solution of the present invention has the following advantages compared with the limiting mechanisms of other existing filter bottles:

[0036] The connection method adopted by this technical solution is a push-and-press type. That is, after the filter bottle in this technical solution is inserted into the first groove, the user only needs to press the filter bottle in the direction of the bottom of the first groove once, and the filter bottle can be connected to the first base at the bottom of the first groove; when the filter bottle is pressed again in the direction of the first groove, the filter bottle will be disengaged from the limit fit with the first base, so that the user can take out the filter bottle from the first base.

[0037] As a preference: at the center of the upper end face of the first base 28, there is a third groove 43. Between the third groove 43 and the lower end face of the first turntable 29, there is a first spring 44. On the outer side wall of the first turntable 29 away from the third groove 43, there is a first serrated structure 33. The first serrated structure 33 includes a plurality of first block-shaped protrusions 46 circumferentially spaced on the end of the first turntable 29 away from the first base 28. On the outer side wall of the right side of the first block-shaped protrusion 46, there is a first guiding inclined surface 47 for the second serrated structure 35 of the third base 32 to slide.

[0038] As a preference: the first elastic mechanism 60 includes a plurality of second connecting rods 48 fixedly connected to the lower end face of the third base 32. A second spring 49 is sleeved on the outer side wall of the second connecting rod 48. On the outer side wall of the second base 31 close to the third base 32, there is a fourth through hole 50 for the second connecting rod 48 to pass through. One end of the second spring 49 abuts against the lower end face of the third base 32, and the end of the second spring 49 away from the third base 32 abuts against the upper end face of the second base 31.

[0039] As a preference: on the outer side wall of the third base 32 close to the first base 28 circumferentially, there is a second serrated structure 35. The second serrated structure 35 includes a second columnar protrusion 51 that can be embedded in the first through hole 34. On the lower end face of the first columnar protrusion 39 circumferentially, there are a plurality of second serrations 52. On the outer side wall of the left side of the second serrations 52, there is a second guiding inclined surface 53 that can be fitted with the first guiding inclined surface 47. The lower end of the third through hole 40 communicates with the lower end face of the second columnar protrusion 51.

[0040] As a preference: on the lower end face of the first through hole 34, there is a third columnar protrusion 54. On the lower end face of the third columnar protrusion 54 circumferentially, there are a plurality of third serrations 55. Between each of the third serrations 55, there is a fourth groove 56 for the first serrated structure 33 to be embedded. On the inner side wall of the fourth groove 56, there is a third guiding inclined surface 57 for facilitating the embedding of the first serrated structure 33. The lower end face of the first through hole 34 penetrates through the lower end face of the third columnar protrusion 54.

[0041] As a preference: on the inner side wall of the third through hole 40 circumferentially spaced, there are positioning sliding grooves 58 for positioning the first columnar protrusion 39. On the outer side wall of the first columnar protrusion 39, there is a slider 59 that can be embedded in the positioning sliding groove 58.

[0042] As a preference: a first block-shaped protrusion is provided every 36° circumferentially on the upper end surface of the first turntable, and a second gap is provided between each pair of first block-shaped protrusions.

[0043] As a preference: a second sawtooth is provided every 10° circumferentially on the lower end surface of the first columnar protrusion, and a second guiding inclined surface that can be fitted with the first guiding inclined surface is provided on the left outer side wall of each second sawtooth.

[0044] As a preference: a third sawtooth is provided every 20° circumferentially on the lower end surface of the third columnar protrusion.

[0045] As a preference: a first limiting protrusion is provided every 36° circumferentially on the inner side wall of the first through hole, and a first gap is provided between each pair of first limiting protrusions; a second limiting protrusion is provided every 36° circumferentially on the outer side wall of the first columnar protrusion, and a third gap is provided between each pair of second limiting protrusions.

Claims

1. A water purifier, comprising a housing (1) of the water purifier and a filter bottle (2), wherein a groove (3) for inserting the filter bottle (2) is provided on the outer side wall of the housing (1), and it is characterized in that: The bottom of the groove (3) is detachably connected to the filter bottle (2) through the first limiting mechanism (4). A first inner cavity (5) is provided inside the housing (1). A second inner cavity (6) whose one side communicates with the first inner cavity (5) is also provided inside the housing (1). The bottom surface of the second inner cavity (6) is fixedly connected to the booster pump (8) through a double-layer shock-absorbing mechanism (7). A water path (9) with one end connected to the booster pump (8) is provided inside the first inner cavity (5). The double-layer shock-absorbing mechanism (7) includes a first gasket (10) with one end fixedly connected to the bottom surface of the second inner cavity (6) and a second gasket (11) with one end fixedly connected to the outer side wall of the booster pump (8). The first gasket (10) and the second gasket (11) are fixedly connected through a first elastic connecting rod (12); A first water inlet (13), a first water outlet (14), and a second water outlet (15) communicating with the water path (9) are provided on the outer side wall of the housing (1). The filter bottle (2) includes a first filter bottle and a second filter bottle. The groove (3) includes a first groove for accommodating the first filter bottle and a second groove for accommodating the second filter bottle. The water path (9) includes a first water inlet pipe (20) with one end communicating with the first water inlet (13). The end of the first water inlet pipe (20) far from the first water inlet (13) passes through the bottom surface of the first groove and communicates with the first filter bottle. The first filter bottle communicates with the booster pump (8) located inside the second inner cavity (6) through a first water pipe (21). The booster pump (8) communicates with the second filter bottle through a second water pipe (22) passing through the bottom surface of the second groove. The second filter bottle communicates with a fourth water pipe (24) through a third water pipe (23). The end of the fourth water pipe (24) far from the third water pipe (23) communicates with the first water outlet (14). The second filter bottle communicates with the second water outlet (15) on the outer side wall of the housing (1) through a fifth water pipe (25). A first solenoid valve (26) for controlling the water flow is provided on the outer side wall of the first water pipe (21). A second solenoid valve (27) for controlling the water flow is provided on the outer side wall of the fifth water pipe (25). The bottom surfaces of the first groove and the second groove are both provided with a first limiting mechanism (4) for detachably connecting the filter bottle (2);The first limiting mechanism (4) includes a first base (28) fixedly connected to the bottoms of the first groove and the second groove. A first turntable (29) is rotatably connected to the outer sidewall of the first base (28). The outer sidewall of the first base (28) on the side where the first turntable (29) is provided is fixedly connected to a second base (31) through a first connection structure (30). The outer sidewall of the second base (31) on the side away from the first connection structure (30) is slidably connected to a third base (32) through a first elastic mechanism (60). The upper end face of the first turntable (29) is circumferentially and spacedly provided with a first serrated structure (33). The upper end face of the second base (31) is provided with a first through hole (34) penetrating the lower end face. The lower end face of the third base (32) is circumferentially provided with a second serrated structure (35) that can be in limiting cooperation with the first serrated structure (33) after passing through the first through hole (34). The center of the first turntable (29) is provided with a second through hole (36). The inner sidewall of the second through hole (36) is circumferentially and spacedly provided with first limiting protrusions (37). A first gap (38) is provided between the first limiting protrusions (37). The lower end of the filter bottle (2) is provided with a first columnar protrusion (39). The upper end face of the third base (32) is provided with a third through hole (40) through which the first columnar protrusion (39) can pass into the first through hole (34) and the second through hole (36). The outer sidewall of the lower end of the first columnar protrusion (39) is circumferentially and spacedly provided with second limiting protrusions (41) that can pass through the first gap (38) and enter the second through hole (36). A third gap (42) is provided between the second limiting protrusions (41); The center of the upper end face of the first base (28) is provided with a third groove (43). A first spring (44) is provided between the third groove (43) and the lower end face of the first turntable (29). The outer sidewall of the first turntable (29) on the side away from the third groove (43) is provided with a first serrated structure (33). The first serrated structure (33) includes a plurality of first block-shaped protrusions (46) circumferentially and spacedly provided at the end of the first turntable (29) away from the first base (28). The right outer sidewall of the first block-shaped protrusion (46) is provided with a first guiding inclined surface (47) for the second serrated structure (35) of the third base (32) to slide; The first elastic mechanism (60) includes a plurality of second connecting rods (48) fixedly connected to the lower end face of the third base (32). A second spring (49) is sleeved on the outer sidewall of the second connecting rod (48). The outer sidewall of the second base (31) on the side close to the third base (32) is provided with a fourth through hole (50) through which the second connecting rod (48) can pass. One end of the second spring (49) abuts against the lower end face of the third base (32), and the end of the second spring (49) away from the third base (32) abuts against the upper end face of the second base (31);On the outer circumferential side of the outer wall of the third base (32) close to the first base (28), a second serrated structure (35) is provided circumferentially. The second serrated structure (35) includes a second columnar protrusion (51) that can be embedded in the first through hole (34). A plurality of second serrations (52) are provided at intervals in the circumferential direction on the lower end surface of the first columnar protrusion (39). A second guiding slope (53) that can be fitted with the first guiding slope (47) is provided on the outer side wall of the left side of the second serration (52). The lower end of the third through hole (40) communicates with the lower end surface of the second columnar protrusion (51).; 2. The water purifier according to claim 1, wherein: The lower end surface of the first through hole (34) is provided with a third columnar protrusion (54). A plurality of third saw teeth (55) are circumferentially arranged on the lower end surface of the third columnar protrusion (54). A fourth groove (56) for the first saw tooth structure (33) to be embedded is provided between the third saw teeth (55). A third guiding inclined surface (57) facilitating the embedding of the first saw tooth structure (33) is provided on the inner side wall of the fourth groove (56). The lower end surface of the first through hole (34) penetrates through the lower end surface of the third columnar protrusion (54).

3. The water purifier according to claim 1, characterized in that: Positioning sliding grooves (58) for positioning the first columnar protrusion (39) are circumferentially and spacedly arranged on the inner side wall of the third through hole (40). A sliding block (59) that can be embedded in the positioning sliding groove (58) is provided on the outer side wall of the first columnar protrusion (39).

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