Filter bottle device and filter bottle assembly

Abstract

The invention provides a filter bottle device which comprises a packing piece capable of rotating relative to a filter bottle cap, the filter bottle device and a filter bottle are sealed through the packing piece, a traditional sealing mode that a sealing piece is directly arranged between the filter bottle cap and the filter bottle is replaced, and in the screwing process and the unscrewing process of the filter bottle cap and the filter bottle, the sealing piece is not prone to falling off. And the packing piece basically does not rotate relative to the filter bottle, so that the screwing and unscrewing difficulty of the filter bottle cover and the filter bottle can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purification, and particularly relates to a filter bottle device and a filter bottle assembly. BACKGROUND

[0002] In the existing filter bottle device, the sealing member is directly arranged between the filter bottle cap and the filter bottle. In order to ensure the effectiveness of the sealing, the filter bottle cap and the filter bottle need to be kept in a close mutual connection state, which causes great difficulty in the connection and disconnection of the two, especially when the two are connected through a threaded structure, which needs to be tightly screwed, and also needs a large force to be unscrewed.

[0003] The arrangement of the sealing member of the existing filter bottle device includes two types of press sealing and side sealing, as shown in the accompanying drawings. Figure 1 It can be understood that, if the press sealing is used, the filter bottle cap 2P and the filter bottle 1P need to be as tightly screwed as possible to flatten the sealing member 31P, so as to achieve reliable sealing, which inevitably causes the filter bottle cap 2P and the filter bottle 1P to be difficult to be unscrewed. Moreover, since the circular ring formed by the sealing member 31P has a diameter not less than the inner diameter of the filter bottle 1P, that is, the sealing member 31P has a large size, when the filter bottle cap 2P and the filter bottle 1P are relatively rotated, the friction caused by the sealing member 31P cannot be ignored, which will further hinder the screwing process and the unscrewing process of the filter bottle cap 2P and the filter bottle 1P. Correspondingly, if the side sealing is used, although the screwing degree of the filter bottle cap 2P and the filter bottle 1P can be slightly reduced, the sealing member 32P also has a large size, which will also cause a large friction, thereby causing great hindrance to the screwing process and the unscrewing process of the filter bottle cap 2P and the filter bottle 1P.

[0004] In addition, since the filter bottle 1P and the filter bottle cap 2P are usually made of plastic material, and the filter bottle cap 2P is not a regular cylinder, the roundness cannot be guaranteed, which forces the manufacturer of the filter bottle device to select a sealing member with a large compression amount when selecting the sealing member, so as to compensate for the problem of sealing difficulty caused by the deformation of the plastic part. However, when the filter core of the filter bottle device is replaced, the sealing member also needs to be replaced, because the large compression amount makes the sealing member difficult to rebound, and if the sealing member is continuously used, the effectiveness and reliability of the sealing cannot be guaranteed.

[0005] Moreover, the filter bottle cap 2P and the filter bottle 1P are relatively moved during the screwing process (for example, one is moved in the clockwise direction, and the other is moved in the counterclockwise direction), and neither the sealing member 31P nor the sealing member 32P can follow the rotation of the filter bottle cap 2P or the filter bottle 1P, so that the sealing member is easily in a twisted state after the filter bottle cap 2P and the filter bottle 1P are screwed, which causes sealing failure and further causes water leakage. SUMMARY

[0006] The main advantage of the present application is to provide a filter bottle device, which comprises a partitioning piece capable of rotating relative to the filter bottle cap, and sealing with the filter bottle through the partitioning piece, instead of the conventional sealing method of directly setting a sealing piece between the filter bottle cap and the filter bottle, and during the screwing and unscrewing process of the filter bottle cap and the filter bottle, the partitioning piece does not rotate relative to the filter bottle substantially, which can greatly reduce the difficulty of screwing and unscrewing the filter bottle cap and the filter bottle. In other words, the present application creatively makes the "fixing" and "sealing" between the filter bottle cap and the filter bottle as independent as possible, and uses the partitioning piece to replace the filter bottle cap to bear the "sealing" function, so that the filter bottle cap and the filter bottle are easier to screw and unscrew.

[0007] Another advantage of the present application is to provide a filter bottle device, wherein the partitioning piece is at least partially disposed between the filter bottle cap and the filter bottle, and the sealing piece is disposed between the inner side of the partitioning piece and the outer side of the filter bottle, thereby avoiding the filter bottle being deformed (the inner diameter becoming larger) and damaging the sealing between the partitioning piece and the filter bottle when the sealing piece is disposed between the outer side of the partitioning piece and the inner side of the filter bottle. Another advantage of the present application is to provide a filter bottle device, wherein during the screwing and unscrewing process of the filter bottle cap and the filter bottle, the partitioning piece can not rotate relative to the filter bottle substantially, thereby making the sealing piece between the partitioning piece and the filter bottle less likely to be twisted, and reducing the risk of sealing failure and water leakage.

[0008] Accordingly, according to the embodiments of the present application, the filter bottle assembly having at least one of the foregoing advantages comprises:

[0009] a filter bottle comprising a shell;

[0010] a filter bottle cap;

[0011] a partitioning piece comprising a high end and a low end extending outwardly and downwardly from the high end; and

[0012] a first seal, wherein the housing comprises an open end, a connecting portion and an extending portion, wherein the connecting portion extends between the open end and the extending portion, the extending portion extends from the connecting portion, wherein the housing has a receiving cavity, the receiving cavity has a mounting opening formed at the open end of the housing, wherein the filter bottle cap is adapted to be detachably connected to the outer sidewall of the connecting portion of the housing, the high end of the partition is located inside the filter bottle cap, the low end of the partition is disposed between the inner sidewall of the filter bottle cap and the outer wall of the open end of the housing, the first seal is disposed between the outer wall of the open end of the housing and the inner peripheral wall of the low end of the partition, wherein the filter bottle cap and the connecting portion of the housing are connected by a threaded connection or a rotating snap connection, wherein when the filter bottle cap is connected to the connecting portion of the housing so that the filter bottle cap presses against the partition, the filter bottle cap can drive the partition to move relative to the open end of the housing of the filter bottle.

[0013] According to another aspect of the present application, the present application provides a filter bottle device, comprising:

[0014] a filter core;

[0015] a filter bottle comprising a housing;

[0016] a filter bottle cap;

[0017] a partition comprising a high end and a low end extending outwardly and downwardly from the high end; and

[0018] a first seal, wherein the housing comprises an open end, a connecting portion and an extending portion, wherein the connecting portion extends between the open end and the extending portion, the extending portion extends from the connecting portion, wherein the housing has a receiving cavity, the receiving cavity has a mounting opening formed at the open end of the housing, wherein the filter bottle cap is adapted to be detachably connected to the outer sidewall of the connecting portion of the housing, the high end of the partition is located inside the filter bottle cap, the low end of the partition is disposed between the inner sidewall of the filter bottle cap and the outer wall of the open end of the housing, the first seal is disposed between the outer wall of the open end of the housing and the inner peripheral wall of the low end of the partition, wherein the filter bottle cap and the connecting portion of the housing are connected by a threaded connection or a rotating snap connection, wherein when the filter bottle cap is connected to the connecting portion of the housing so that the filter bottle cap presses against the partition, the filter bottle cap can drive the partition to move relative to the open end of the housing of the filter bottle, wherein the filter core is disposed in the receiving cavity, the high end of the partition is disposed between the filter bottle cap and the filter core.

[0019] The above and other advantages of the present application will become readily apparent by reference to the following description when considered in connection with the accompanying drawings.

[0020] The above and other advantages and features of the present application will become apparent from the following description of the application, when viewed in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a cross-sectional view of a prior art filter bottle device.

[0022] Figure 2A is a perspective view of a filter bottle device according to a first embodiment of the present application.

[0023] Figure 2B is a cross-sectional view of a filter bottle device according to the first embodiment of the present application.

[0024] Figure 2C is a cross-sectional view of a filter bottle device according to the first embodiment of the present application, wherein the through passage of the partition is in communication with the water cavity between the filter cartridge and the housing.

[0025] Figure 2D is a cross-sectional view of a filter bottle device according to the first embodiment of the present application, wherein the through passage of the partition is in communication with the filter cartridge (or the opening of the filter cartridge).

[0026] Figure 3A is a perspective view of a partition of a filter bottle device according to the first embodiment of the present application.

[0027] Figure 3B is a cross-sectional view of a partition of a filter bottle device according to the first embodiment of the present application.

[0028] Figure 3C is another cross-sectional view of a partition of a filter bottle device according to the first embodiment of the present application, wherein a metal ring is provided at the outer peripheral wall of the lower end of the partition.

[0029] Figure 3D is a perspective view of a partition, a retaining holder and a second seal of a filter bottle device according to the first embodiment of the present application.

[0030] Figure 3E is a perspective view of a retaining holder of a filter bottle device according to the first embodiment of the present application.

[0031] Figure 4A is a perspective view of an alternative embodiment of a filter bottle device according to the first embodiment of the present application.

[0032] Figure 4B is a cross-sectional view of the alternative embodiment of a filter bottle device according to the first embodiment of the present application.

[0033] Figure 5A is a perspective view of the closure of the alternative implementation of the filter bottle apparatus according to the first embodiment of the present invention.

[0034] Figure 5B is a cross-sectional view of the closure of the alternative implementation of the filter bottle apparatus according to the first embodiment of the present invention.

[0035] Figure 6A is a perspective view of the filter bottle apparatus according to the second embodiment of the present invention.

[0036] Figure 6B is a cross-sectional view of the filter bottle apparatus according to the second embodiment of the present invention, wherein the filter bottle cap is connected to the filter bottle by a screw thread.

[0037] Figure 7A is a cross-sectional view of the filter bottle cap of the filter bottle apparatus according to the second embodiment of the present invention, wherein the filter bottle cap is connected by a screw thread.

[0038] Figure 7B is a perspective view of the closure of the filter bottle apparatus according to the second embodiment of the present invention.

[0039] Figure 7C is a cross-sectional view of the closure of the filter bottle apparatus according to the second embodiment of the present invention.

[0040] Figure 7D is a cross-sectional view of the filter bottle apparatus according to the second embodiment of the present invention, wherein the filter bottle cap is connected to the filter bottle by a twist and snap connection.

[0041] Figure 7E is a cross-sectional view of the filter bottle cap of the filter bottle apparatus according to the second embodiment of the present invention, wherein the filter bottle cap is connected by a twist and snap connection.

[0042] Figure 7F is a partial perspective view of the filter bottle of the filter bottle apparatus according to the second embodiment of the present invention, wherein the filter bottle is connected by a twist and snap connection.

[0043] Figure 8A is a perspective view of the filter bottle apparatus according to the third embodiment of the present invention.

[0044] Figure 8B is a cross-sectional view of the filter bottle apparatus according to the third embodiment of the present invention.

[0045] Figure 9A is a perspective view of the closure of the filter bottle apparatus according to the third embodiment of the present invention.

[0046] Figure 9B is a cross-sectional view of the closure of the filter bottle apparatus according to the third embodiment of the present invention.

[0047] Figure 10Ais a perspective view of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0048] Figure 10B is a cross-sectional view of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0049] Figure 11A is a perspective view of a closure of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0050] Figure 11B is a cross-sectional view of a closure of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0051] Figure 12A is a perspective view of an alternative implementation of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0052] Figure 12B is a cross-sectional view of the alternative implementation of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0053] Figure 13A is a perspective view of a closure of the alternative implementation of a filter bottle apparatus according to a fourth embodiment of the present invention.

[0054] Figure 13B is a cross-sectional view of a closure of the alternative implementation of a filter bottle apparatus according to a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0055] The following description is provided so that others skilled in the art can have a clear and comprehensive understanding of the present application. Other obvious alternatives, modifications and variations can be derived by those skilled in the art from the present description. Therefore, the scope of the present application should not be limited by the exemplary embodiments described herein.

[0056] It should be understood by those skilled in the art that the term "one" should be understood as "at least one" or "one or more" unless specifically stated otherwise herein, i.e. in one embodiment the number of one element can be one, while in another embodiment the number of the element can be more than one.

[0057] It should be understood by those skilled in the art that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, as used herein, refer to the orientation or position shown in the drawings, merely for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation or position. Therefore, the above terms should not be construed as limiting the present application.

[0058] Reference is made to the drawings of the present specification Figures 2A-3EAs shown, the filter bottle device according to the first embodiment of the present application is illustrated, which comprises a filter bottle 1, a filter core 12, a filter bottle cap 2, a partition 3 and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3 comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extension portion 112, wherein the connecting portion 113 extends between the open end 111 and the extension portion 112, the extension portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110, the receiving cavity 110 has a mounting opening 1101 formed at the open end 111 of the housing 11, the filter core 12 is arranged in the receiving cavity 110, wherein the filter bottle cap 2 is adapted to be detachably connected to the outer sidewall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3 is located at the inner side of the filter bottle cap 2. Preferably, the filter core 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the partition 3 is arranged between the filter bottle cap 2 and the filter core 12, the low end 32 of the partition 3 is arranged between the inner sidewall 24 of the filter bottle cap 2 and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is arranged between the outer wall 1111 of the open end 111 of the housing 11 and the inner peripheral wall 321 of the low end 32 of the partition 3, wherein when the filter bottle cap 2 is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2 abuts against the partition 3, the filter bottle cap 2 is capable of driving the partition 3 to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieving the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3 through the first seal 51. In other words, when the filter bottle cap 2 is tightly connected to the connecting portion 113 of the housing 11, the filter bottle cap 2 is capable of abutting against the partition 3 to drive the partition 3 to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3 through the first seal 51.

[0059] It can be understood that the fastening connection between the filter bottle cap 2 and the filter bottle 1 of the filter bottle device of the present application refers to the appropriate connection between the filter bottle cap 2 and the filter bottle 1 of the filter bottle device of the present application through a certain connection mode, so that the filter bottle cap 2 and the filter bottle 1 are firmly connected, so that the filter bottle cap 2 can press and drive the sealing piece 3 to move relative to the opening end 111 of the shell 11 of the filter bottle 1 and abut against the opening end 111 of the shell 11. It can be understood that the connection between the filter bottle cap 2 and the filter bottle 1 of the filter bottle device of the present application can be achieved in various ways, for example, through threaded connection, rotating buckle connection or clamp connection, or other appropriate ways to achieve detachable connection.

[0060] The filter bottle device has the following advantages. Firstly, when the filter bottle cover 2 is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2 rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2 can press and drive the partition piece 3 to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first sealing piece 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the low end 32 of the partition piece 3, the friction between the filter bottle cover 2 and the partition piece 3 cannot drive the partition piece 3 to rotate synchronously. Therefore, the partition piece 3 does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation of the filter bottle cover 2 and the filter bottle 1 is not hindered by the large sealing piece, and the difficulty of tightening the filter bottle cover 2 and the filter bottle 1 is greatly reduced. The filter bottle device can ensure that the inner peripheral wall 321 of the low end 32 of the partition piece 3 tightly presses the first sealing piece 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1 when the filter bottle cover 2 is rotated to a preset position, so that the relative rotation (tightening) between the filter bottle cover 2 and the filter bottle 1 of the filter bottle device is not hindered by the large sealing piece, and the filter bottle cover 2 and the filter bottle 1 can be easily rotated. Accordingly, when the filter bottle cover 2 is rotated away (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2 and the filter bottle 1 are as far as possible independent and separated from each other in terms of “fixing” and “sealing”, and the partition piece 3 is used to replace the filter bottle cover 2 to bear the “sealing” function, so that the filter bottle cover 2 and the filter bottle 1 can be more easily tightened and loosened. In addition, since the partition piece 3 does not rotate relative to the filter bottle 1, the first sealing piece 51 is less likely to be distorted, and the risk of sealing failure and water leakage is reduced. Secondly, when water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the bottle wall of the filter bottle 1 in the transverse (radial) direction from the inside of the filter bottle 1, so that a structure with higher stability is obtained.At this time, due to the external action of the filter bottle cap 2 and the internal pressure action of the water pressure in the filter bottle 1, the opening end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing member 51, so that the sealing between the filter bottle 1 and the filter bottle cap 2 is better. Again, the better sealing between the filter bottle 1 and the filter bottle cap 2 also allows manufacturers or users to choose a sealing member with a smaller compression amount compared to the traditional sealing method, so that the sealing member can be used multiple times without replacing the sealing member each time the filter core is replaced. The first sealing member 51 with a smaller compression amount also makes the relative translation between the filter bottle 1 and the filter bottle cap 2 less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle 1 and the filter bottle cap 2. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2, the filter bottle cap 2, and the first sealing member 51 of the filter bottle device of the present application further overcomes the defect that the first sealing member 51 is arranged between the inner wall of the opening end 111 of the housing 11 and the outer wall of the filter bottle cap 3. When the first sealing member 51 is arranged between the inner wall of the opening end 111 of the housing 11 and the outer wall of the filter bottle cap 3, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the housing 11 of the filter bottle 1 expands outward, which may cause the first sealing member 51 arranged between the inner wall of the opening end 111 of the housing 11 and the outer wall of the filter bottle cap 3 to loosen and cause the seal between the inner wall of the opening end 111 and the outer wall of the filter bottle cap 3 to be damaged.

[0061] As shown in the accompanying drawings Figure 2B and Figure 3C The filter bottle device of the present application further comprises a metal ring 60, wherein the metal ring 60 is arranged on the outer peripheral wall 322 of the lower end 32 of the filter bottle cap 3. It can be understood that the metal ring 60 arranged on the outer peripheral wall 322 of the lower end 32 of the filter bottle cap 3 can reduce the deformation or expansion of the lower end 32 of the filter bottle cap 3 after being stressed, improve the sealing between the lower end 32 of the filter bottle cap 3 and the opening end 111 of the housing 11 of the filter bottle 1, and prevent the lower end 32 of the filter bottle cap 3 from being broken when being stressed too much. In addition, the surface of the metal ring 60 is smoother, which can further reduce the friction between the outer peripheral wall 322 of the lower end 32 of the filter bottle cap 3 and the filter bottle cap 2.

[0062] As shown in the accompanying drawings Figures 2A-3EAs shown, the filter bottle cover 2 of the filter bottle device of the present application comprises an opening part 21 and a mounting part 22 extending from the opening part 21, and the partition 3 further comprises a through part 33, wherein the low end 32 and the through part 33 are integrally extended from two opposite sides of the high end 31 respectively, wherein the opening part 21 forms a through opening 210, and the through part 33 forms a through channel 330, wherein the through part 33 is penetrated from the through opening 210 of the opening part 21. It can be understood that the through channel 330 is adapted to be communicated with the filter core 12 (or the water inlet or water outlet of the filter core 12). Preferably, the high end 31 and the inner wall 1112 of the opening end 111 of the shell 11 surround a through cavity 320, wherein the through cavity 320 is adapted to be communicated with the through channel 330 and the water cavity 120 or the filter core 12 respectively, and the through part 33 is penetrated from the through opening 210 of the opening part 21. Further, the mounting part 22 of the filter bottle cover 2 of the filter bottle device of the present application is adapted to be fastened and connected to the connecting part 113 of the shell 11.

[0063] As shown in the drawings, Figures 2A-3E As shown, the opening end 111 of the shell 11 of the filter bottle device of the present application comprises a main part 1113 and a sealing part 1114 extending outwardly from the main part 1113, wherein the first sealing member 51 is arranged between the sealing part 1114 of the opening end 111 and the inner peripheral wall 321 of the low end 32 of the partition 3. Preferably, the low end 32 is trumpet-shaped along its extending direction, so that the partition 3 is more easily to compress the first sealing member 51 and move relative to the opening end 111 of the shell 11 and more easily to gradually realize the sealing between the sealing part 1114 of the opening end 111 and the low end 32 of the partition 3 when the filter bottle cover 2 is pressed and driven. Accordingly, the partition 3 is more easily to be moved away from the sealing part 1114 of the opening end 111 when the filter bottle cover 2 is removed.

[0064] As shown in the drawings, Figures 2A-3EAs shown, the high end 31 of the partition 3 of the filter bottle device forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3 and opposite to the open end 111 of the shell 11, and the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3 to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2 presses and drives the partition 3 to move relative to the open end 111 of the shell 11 of the filter bottle 1. It can be understood that the guide groove 310, the open end 111 of the shell 11, the first sealing member 51 and the inner circumferential wall 321 of the low end 32 of the partition 3 cooperate with each other, so that the guide groove 310 and the inner circumferential wall 321 of the low end 32 of the partition 3 better wrap the first sealing member 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner circumferential wall 321 of the low end 32 of the partition 3 to deform outwardly, the guide groove 310 can cause the inner circumferential wall 321 of the low end 32 of the partition 3 to always press the first sealing member 51 and deform outwardly synchronously with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner circumferential wall 321 of the low end 32 of the partition 3 deforms excessively outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner circumferential wall 321 of the low end 32 of the partition 3 cannot deform excessively outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner circumferential wall 321 of the low end 32 of the partition 3 to deform outwardly, the first sealing member 51 is always pressed by the inner circumferential wall 321 of the low end 32 of the partition 3 to maintain the sealing between the inner circumferential wall 321 of the low end 32 of the partition 3 and the open end 111 of the shell 11. When the water pressure in the filter bottle 1 decreases and causes the open end 111 of the shell 11 to deform inwardly, the open end 111 of the shell 11 presses inwardly in the guide groove 310, so that the guide groove 310 further pulls the inner circumferential wall 321 of the low end 32 of the partition 3 to deform inwardly, so that the inner circumferential wall 321 of the low end 32 of the partition 3 always presses the first sealing member 51 and deforms inwardly synchronously with the open end 111 of the shell 11.

[0065] As shown in the accompanying drawings Figures 2A-3E Preferably, the filter bottle device of the present application further comprises a second sealing member 52, wherein the second sealing member 52 is arranged between the inner wall 1112 of the open end 111 of the housing 11 and the slot wall 3101 of the guide slot 310. It can be understood that the second sealing member 52 enables a flexible connection between the inner wall 1112 of the open end 111 of the housing 11 and the slot wall 3101 of the guide slot 310. In particular, the housing 11 and the spacer 3 are usually made of plastic material, which causes the product to be easily deformed after injection molding. The flexible connection reduces the higher production precision requirement for the inner diameter of the top end 1115 of the open end 111 to match the outer diameter of the guide slot 310.

[0066] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3 and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3 and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3 and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3 to deform outward, at this time, the low end 32 of the partition 3 moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can realize the sealing between the open end 111 of the shell 11 and the partition piece 3; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3 and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3; when the water pressure in the filter bottle 1 is high, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3 and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will compress and drive the low end 32 of the partition piece 3 to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3 to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby realizing the self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.

[0067] As shown in the accompanying drawings Figures 2A-3EAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3 and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3 and the retaining bracket 53 is surrounded by the inner wall 1112 of the open end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3 by welding. The retaining bracket 53 can also be fixed to the partition 3 by other means, such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3. Preferably, the retaining bracket 53 further has a gap 531 through which a user can use a screwdriver or other simple tools to remove the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the open end 111 of the housing 11 and the second seal 52 is arranged in the guide groove 310 of the partition 3, so that both the first seal 51 and the second seal 52 are convenient to install and replace.

[0068] It can be understood that, as shown in the drawings Figures 2A-3EAs shown, when the filter bottle device has three openings, the filter bottle 1 further comprises a first fluid passage 1121 and a second fluid passage 1122, and the extension 112 of the housing 11 has a lower end 1120, and the first fluid passage 1121 and the second fluid passage 1122 of the filter bottle 1 are respectively arranged at the lower end 1120 of the filter bottle 1, wherein the first fluid passage 1121 is formed in the central region 11201 of the lower end 1120, and the second fluid passage 1122 is formed in the edge region 11202 extending outwardly from the central region 11201 of the lower end 1120. It can be understood that the filter core 12 can be a reverse osmosis membrane filter core or a three-port ultrafiltration membrane filter core. As an example, when the filter core 12 is a reverse osmosis membrane filter core, the water cavity 120 is separated into a first water cavity 1201 and a second water cavity 1202 by the filter core 12, wherein the first water cavity 1201 is in communication with the through cavity 320, and the second water cavity 1202 is in communication with the second fluid passage 1122, the water inlet end of the filter core 12 is in communication with the first water cavity 1201 (or the through cavity 320), the sewage outlet end of the filter core 12 is in communication with the second water cavity 1202, and the purified water outlet of the filter core 12 is sealingly connected to the first fluid passage 1121. As an example, the through passage 330 is used as the inflow passage of raw water, the first fluid passage 1121 is used as the outflow passage of purified water, and the second fluid passage 1122 is used as the outflow passage of sewage. Raw water flows into the through passage 330, flows into the water inlet end of the filter core 12 through the through cavity 320, and the purified water purified by the filter core 12 is guided out of the purified water outlet and finally flows out through the first fluid passage 1121. Sewage flows into the second water cavity 1202 through the sewage outlet end of the filter core 12 and is then discharged through the second fluid passage 1122. It can be understood that the through passage 330, the first fluid passage 1121 and the second fluid passage 1122 can form threaded openings, or can form quick-connection interfaces as required. Figure 2C As shown, when the filter bottle 1 is a two-port filter bottle (the filter bottle 1 no longer has the second fluid passage 1122), when the through cavity 320 of the partition 3 is in communication with the through passage 330 and the water cavity 120 respectively, raw water can flow from the through passage 330 to the water cavity 120, and after being purified by the filter core 12, the purified water flows out of the water outlet of the filter core 12 and the first fluid passage 1121. It can be understood that, as shown in the drawings, Figure 2DAs shown, when the through passage 330 of the partition 3 is connected with the filter element 12 (or the opening of the filter element 12), raw water can flow from the first fluid passage 1121 to the water cavity 120 and to the filter element 12, and after being purified by the filter element 12, the purified water flows out from the through passage 330.

[0069] As shown in the drawings Figures 2A-3E As shown, the filter bottle device further comprises a limiting member 9, and the partition 3 further comprises a limiting portion 34, wherein the limiting portion 34 extends outward from the through portion 33, and the limiting member 9 is adapted to be arranged between the limiting portion 34 and the opening portion 21 of the filter bottle cap 2, so that the filter bottle cap 2 and the partition 3 cannot relatively translate and can relatively rotate with small resistance. When the filter bottle cap 2 is unscrewed (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, since the partition 3 is limited by the limiting member 9 at the opening portion 21 of the filter bottle cap 2, and the torque of the frictional force (driving force) applied by the limiting member 9 and the opening portion 21 of the filter bottle cap 2 to the partition 3 is much smaller than the torque of the resistance force of the relative rotation of the first sealing member 51 between the sealing portion 1114 of the opening end 111 of the filter bottle 1 and the partition 3, the filter bottle cap 2 cannot basically drive the partition 3 to rotate, and therefore, the partition 3 basically does not rotate relative to the sealing portion 1114 of the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the sealing portion 1114 of the opening end 111 of the shell 11 of the filter bottle 1 (the partition 3 moves away from the extending portion 112 of the shell 11). The limiting member 9 is exemplified as a snap spring, but can also be a nut or other limiting member, for example, a nut can be fixed to the limiting portion 34 of the partition 3.

[0070] As shown in the drawings Figures 4A-5BAn optional implementation of the filter bottle device according to the first embodiment of the present application is shown, which comprises a filter bottle 1, a filter core 12, a filter bottle cap 2A, a partition 3A and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3A comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extension portion 112, wherein the connecting portion 113 extends between the open end 111 and the extension portion 112, the extension portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110 having a mounting opening 1101 formed at the open end 111 of the housing 11, the filter core 12 is arranged in the receiving cavity 110, wherein the filter bottle cap 2A is adapted to be detachably connected to the outer sidewall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3A is located at the inner side of the filter bottle cap 2A. Preferably, the filter core 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the partition 3A is arranged between the filter bottle cap 2A and the filter core 12, the low end 32 of the partition 3A is arranged between the inner sidewall 24 of the filter bottle cap 2A and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is arranged between the outer wall 1111 of the open end 111 of the housing 11 and the inner peripheral wall 321 of the low end 32 of the partition 3A, wherein when the filter bottle cap 2A is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2A abuts against the partition 3A, the filter bottle cap 2A is capable of driving the partition 3A to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieving the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3A through the first seal 51. In other words, when the filter bottle cap 2A is tightly connected to the connecting portion 113 of the housing 11, the filter bottle cap 2A is capable of abutting against the partition 3A to drive the partition 3A to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3A through the first seal 51.

[0071] It is understood that the fastened connection between the filter bottle cap 2A and the filter bottle 1 of the filter bottle device of the present invention refers to an appropriate connection between the filter bottle cap 2A and the filter bottle 1 of the filter bottle device of the present invention through a certain connection method, so that the filter bottle cap 2A is firmly connected to the filter bottle 1, thereby enabling the filter bottle cap 2A to compress and drive the sealing member 3A to move relative to the open end 111 of the housing 11 of the filter bottle 1 and press against the open end 111 of the housing 11. It is understood that the connection between the filter bottle cap 2A and the filter bottle 1 of the filter bottle device of the present invention can be achieved in various ways, for example, through a threaded connection, a rotating snap connection or a clamp connection, or other appropriate methods to achieve a detachable connection.

[0072] The filter bottle device has the following advantages. Firstly, when the filter bottle cover 2A is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2A rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2A can press and drive the partition piece 3A to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first seal 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the partition piece 3A, the friction between the filter bottle cover 2A and the partition piece 3A cannot drive the partition piece 3A to rotate synchronously. Therefore, the partition piece 3A does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation of the filter bottle cover 2A and the filter bottle 1 is not hindered by the large seal, and the difficulty of tightening the filter bottle cover 2A and the filter bottle 1 is greatly reduced. The filter bottle device can ensure that the inner circumferential wall 321 of the lower end 32 of the partition piece 3A tightly presses the first seal 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1 when the filter bottle cover 2A is rotated to a preset position, so that the relative rotation (tightening) between the filter bottle cover 2A and the filter bottle 1 is not hindered by the large seal, and the filter bottle cover 2A and the filter bottle 1 can be easily rotated. Accordingly, when the filter bottle cover 2A is rotated away (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2A and the filter bottle 1 are as independently and separately as possible, and the partition piece 3A is used to replace the filter bottle cover 2A to bear the sealing function, so that the filter bottle cover 2A and the filter bottle 1 can be easily tightened and unscrewed. In addition, the partition piece 3A does not rotate relative to the filter bottle 1, so that the first seal 51 is less likely to be twisted, and the risk of sealing failure and water leakage is reduced. Secondly, when water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the bottle wall of the filter bottle 1 in the transverse (radial) direction from the inside of the filter bottle 1, so that a structure with higher stability is obtained.At this time, due to the external action of the filter bottle cap 2A and the internal pressure action of the water pressure in the filter bottle 1, the open end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing member 51, so that the sealing between the filter bottle 1 and the partition member 3A is better. Again, the better sealing between the partition member 3A and the filter bottle 1 also allows manufacturers or users to choose a sealing member with a smaller compression amount compared to the traditional sealing method, thereby allowing the sealing member to be used multiple times without the need to replace the sealing member each time the filter element is replaced. The first sealing member 51 with a smaller compression amount also makes the relative translation between the partition member 3A and the filter bottle 1 less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle cap 2A and the filter bottle 1. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2A, the partition member 3A and the first sealing member 51 of the filter bottle device of the present application further overcomes the defect that the first sealing member 51 is arranged between the inner wall of the open end 111 of the shell 11 and the outer wall of the partition member 3A. When the first sealing member 51 is arranged between the inner wall of the open end 111 of the shell 11 and the outer wall of the partition member 3A, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the shell 11 of the filter bottle 1 expands outward, which may cause the first sealing member 51 arranged between the inner wall of the open end 111 of the shell 11 and the outer wall of the partition member 3A to loosen and cause the seal between the inner wall of the open end 111 and the outer wall of the partition member 3A to be broken.

[0073] As shown in the accompanying drawings Figures 4A-5B The filter bottle cap 2A of the filter bottle device of the present application includes an opening portion 21, a mounting portion 22 extending from the opening portion 21, and a lead-through portion 23A extending from the opening portion 21, and the high end 31 of the partition member 3A forms a through opening 340A, wherein the lead-through portion 23A and the opening portion 21 form a lead-through passage 230A extending from the opening portion 21 to the lead-through portion 23A, and the lead-through portion 23A extends out of the through opening 340A of the high end 31. It can be understood that the lead-through passage 230A is adapted to communicate with the water cavity 120 (or the water inlet or water outlet of the filter element 12). Further, the mounting portion 22 of the filter bottle cap 2A of the filter bottle device of the present application is adapted to be fastened and connected to the connecting portion 113 of the shell 11.

[0074] As shown in the accompanying drawings Figures 4A-5BAs shown, preferably, a seal is formed between the guide portion 23A of the filter bottle cap 2A and the upper end 31 of the septum 3A in the filter bottle assembly of the present invention. The filter bottle assembly of the present invention further includes a central seal 54, which is disposed between the guide portion 23A of the filter bottle cap 2A and the through-opening 340A of the upper end 31 of the septum 3A to ensure a seal between the guide portion 23A of the filter bottle cap 2A and the upper end 31 of the septum 3A. It is worth noting that, because the central seal 54 is disposed between the guide portion 23A of the filter bottle cap 2A and the through-opening 340A of the upper end 31 of the septum 3A, the driving torque of the central seal 54 is less than the torque generated by the resistance of the first seal 51 (and the second seal 52). Therefore, the driving force of the central seal 54 is essentially unable to drive the septum 3A to rotate relative to the filter bottle 1.

[0075] As shown in the attached figure Figures 4A-5B As shown, the filter bottle device of the present invention further has a restraining member 4, which includes a fixing portion 41 and a restraining portion 42, wherein the restraining portion 42 and the fixing portion 41 of the restraining member 4 are respectively arranged on the high end 31 of the sealing member 3A and the conducting portion 23A of the filter bottle cover 2A, for restraining the sealing member 3A and preventing the sealing member 3A from detaching from the filter bottle cover 2A.

[0076] As shown in the attached figure Figures 4A-5B As shown, the fixing portion 41 of the restraining member 4 of the filter bottle device of the present invention is connected to the conducting portion 23A. The restraining portion 42 extends from the fixing portion 41 to the upper end 31 of the sealing member 3A to restrain the sealing member 3A. Preferably, the restraining member 4 is provided with a communication channel 40, wherein the communication channel 40 is formed in the fixing portion 41 and communicates with the conducting channel 230A. Preferably, the conducting channel 230A passes through the communication channel 40.

[0077] As shown in the attached figure Figures 4A-5B As shown, preferably, the central seal 54 is constrained between the high end 31 of the sealing member 3A and the conducting portion 23A of the filter bottle cover 2A. Preferably, the fixing portion 41 of the constraint member 4 is fixed to the conducting portion 23A by screws. It can be understood that the connection structure between the fixing portion 41 and the conducting portion 23A includes but is not limited to welding, screw fixing, threaded connection, snap connection or interference connection, etc., and the two can even be connected using additional connecting parts. As shown in the accompanying drawings Figures 4A-5BAs shown, the open end 111 of the housing 11 of the filter bottle device of the present application comprises a main portion 1113 and a sealing portion 1114 extending outwardly from the main portion 1113, wherein the first sealing member 51 is arranged between the sealing portion 1114 of the open end 111 and the inner peripheral wall 321 of the lower end 32 of the partition member 3A. Preferably, the lower end 32 is trumpet-shaped along its extending direction, so that the partition member 3A is more easily to compress the first sealing member 51 and move relative to the open end 111 of the housing 11 and more easily to gradually achieve the sealing between the sealing portion 1114 of the open end 111 and the lower end 32 of the partition member 3A when being pressed and driven by the filter bottle cap 2A. Accordingly, the partition member 3A is more easily to move away from the sealing portion 1114 of the open end 111 when the filter bottle cap 2A is removed.

[0078] As shown in the drawings, Figures 4A-5BAs shown, the high end 31 of the partition 3A of the filter bottle device of the present application forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3A and opposite to the open end 111 of the shell 11, wherein the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3A to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2A presses and drives the partition 3A to move relative to the open end 111 of the shell 11 of the filter bottle 1. It can be understood that the guide groove 310, the open end 111 of the shell 11, the first sealing member 51 and the inner peripheral wall 321 of the low end 32 of the partition 3A cooperate with each other, so that the guide groove 310 and the inner peripheral wall 321 of the low end 32 of the partition 3A better wrap the first sealing member 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3A to deform outwardly, the guide groove 310 can cause the inner peripheral wall 321 of the low end 32 of the partition 3A to always press the first sealing member 51 and deform outwardly synchronously with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner peripheral wall 321 of the low end 32 of the partition 3A deforms excessively outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner peripheral wall 321 of the low end 32 of the partition 3A cannot deform excessively outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3A to deform outwardly, the first sealing member 51 is always pressed by the inner peripheral wall 321 of the low end 32 of the partition 3A to maintain the seal between the inner peripheral wall 321 of the low end 32 of the partition 3A and the open end 111 of the shell 11.When the water pressure inside the filter bottle 1 drops and causes the open end 111 of the shell 11 to deform inwardly, the open end 111 of the shell 11 presses against the guide groove 310 inwardly, causing the guide groove 310 to further pull the inner peripheral wall 321 of the low end 32 of the partition 3A to deform inwardly as well, so that the inner peripheral wall 321 of the low end 32 of the partition 3A always presses against the first seal 51 and deforms inwardly synchronously with the open end 111 of the shell 11.

[0079] As shown in the accompanying drawings Figures 4A-5B Preferably, the filter bottle device of the present application further comprises a second seal 52, wherein the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310. The second seal 52 makes the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 flexibly connected. In particular, the shell 11 and the partition 3A are usually made of plastic material, which causes the product to be prone to deformation after injection molding. The flexible connection reduces the higher production precision requirement for the inner diameter of the top end 1115 of the open end 111 to match the outer diameter of the guide groove 310.

[0080] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3A and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3A and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3A and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3A to deform outward, at this time, the low end 32 of the partition 3A moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can realize the sealing between the open end 111 of the shell 11 and the partition piece 3A; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3A and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3A and the open end 111 of the shell 11; when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3A and the outer wall 1111 of the open end 111 of the shell 11 when the water pressure in the filter bottle 1 is high, the water pressure will compress and drive the low end 32 of the partition piece 3A to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3A to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby realizing the self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52. It can be understood that when the user or operator unscrews the filter bottle cap 2A, the restraining portion 42 of the restraining piece 4 presses against the partition piece 3A, and the restraining portion 42 of the restraining piece 4 can compress and drive the partition piece 3A to move relative to the open end 111 of the shell 11 of the filter bottle 1 and move away from the extension 112 of the shell 11, and the restraining portion 42 of the restraining piece 4 (or the filter bottle cap 2A) and the partition piece 3A rotate relative to each other, at this time, the torque of the frictional force exerted on the partition piece 3A by the central seal 54 and the restraining portion 42 of the restraining piece 4 is smaller than the torque of the frictional force exerted on the partition piece 3A by the first seal 51 and the second seal 52, therefore, when the user or operator unscrews the filter bottle cap 2A, the partition piece 3A basically does not rotate, but only translates relative to the shell 11.

[0081] As shown in the drawings Figures 4A-5BAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3A and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3A and the retaining bracket 53 is surrounded by the inner wall 1112 of the opening end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3A by welding, or can be fixed to the partition 3A by other means such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3A. Preferably, the retaining bracket 53 further has a gap 531, through which a user can use a screwdriver or other simple tools to remove the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the opening end 111 of the housing 11, and the second seal 52 is arranged in the guide groove 310 of the partition 3A, so that the first seal 51 and the second seal 52 are both convenient to install and replace.

[0082] It can be understood that, as shown in the drawings Figures 4A-5BAs shown, when the filter bottle device has three openings, the filter bottle 1 further comprises a first fluid passage 1121 and a second fluid passage 1122, and the extension 112 of the housing 11 has a lower end 1120, and the first fluid passage 1121 and the second fluid passage 1122 of the filter bottle 1 are arranged at the lower end 1120 of the filter bottle 1 respectively, wherein the first fluid passage 1121 is formed in the central region 11201 of the lower end 1120, and the second fluid passage 1122 is formed in the edge region 11202 extending outwardly from the central region 11201 of the lower end 1120. It can be understood that the filter core 12 can be a reverse osmosis membrane filter core or a three-port ultrafiltration membrane filter core. As an example, when the filter core 12 is a reverse osmosis membrane filter core, the water cavity 120 is separated into a first water cavity 1201 and a second water cavity 1202 by the filter core 12, wherein the first water cavity 1201 is in communication with the through passage 230A, the second water cavity 1202 is in communication with the second fluid passage 1122, the water inlet end of the filter core 12 is in communication with the first water cavity 1201 (or the through passage 230A), the sewage outlet end of the filter core 12 is in communication with the second water cavity 1202, and the purified water outlet of the filter core 12 is sealingly connected to the first fluid passage 1121. As an example, the through passage 230A is used as the inflow passage of raw water, the first fluid passage 1121 is used as the outflow passage of purified water, and the second fluid passage 1122 is used as the outflow passage of sewage. Raw water flows into the through passage 230A, flows into the water inlet end of the filter core 12 through the first water cavity 1201, and is purified by the filter core 12. The purified water is discharged from the purified water outlet, and finally flows out through the first fluid passage 1121. The sewage flows into the second water cavity 1202 through the sewage outlet end of the filter core 12, and is discharged through the second fluid passage 1122. It can be understood that the through passage 230A (or the opening part 21), the first fluid passage 1121 and the second fluid passage 1122 can form threaded openings, or can form quick-connection interfaces as required. Figure 4B As shown, when the filter bottle 1 is a two-port filter bottle (the filter bottle 1 no longer has the second fluid passage 1122), when the through passage 230A is in communication with the water cavity 120, raw water can flow from the through passage 230A to the water cavity 120, and after being purified by the filter core 12, the purified water flows out from the purified water outlet of the filter core 12 and the first fluid passage 1121. It can be understood that when the through passage 230A is in communication with the filter core 12 (or the opening of the filter core 12), raw water can flow from the first fluid passage 1121 into the water cavity 120 and flow to the filter core 12, and after being purified by the filter core 12, the purified water flows out from the through passage 230A.

[0083] Referring to the accompanying drawings of the present invention Figures 6A-7F As shown, a filter bottle device according to a second embodiment of the present invention is illustrated, which includes a filter bottle 1, a filter element 12, a filter bottle cover 2B, a sealing member 3B and a first sealing member 51, wherein the filter bottle 1 includes a housing 11, the sealing member 3B includes a high end 31 and a low end 32 extending outward and downward from the high end 31, the housing 11 includes an open end 111, a connecting portion 113 and an extending portion 112, wherein the connecting portion 113 extends between the open end 111 and the extending portion 112 The extension portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110, the receiving cavity 110 having a mounting opening 1101 formed at the open end 111 of the housing 11. The filter element 12 is disposed within the receiving cavity 110, wherein the filter bottle cap 2B is adapted to be detachably connected to the outer sidewall 1131 of the connecting portion 113 of the housing 11, and the upper end 31 of the sealing member 3B is located on the inner side of the filter bottle cap 2B. Preferably, the filter element 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the sealing member 3B is arranged between the filter bottle cover 2B and the filter element 12, the low end 32 of the sealing member 3B is arranged between the inner side wall 24 of the filter bottle cover 2B and the outer wall 1111 of the open end 111 of the shell 11, and the first sealing member 51 is arranged between the outer wall 1111 of the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the sealing member 3B, wherein when the filter bottle cover 2B is connected to the connecting portion 113 of the shell 11 so that the filter bottle cover 2B is pressed against the sealing member 3B, the filter bottle cover 2B can drive the sealing member 3B to move relative to the open end 111 of the shell 11 of the filter bottle 1 and realize the sealing between the open end 111 of the shell 11 of the filter bottle 1 and the low end 32 of the sealing member 3B through the first sealing member 51. In other words, when the filter bottle cover 2B is fastened to the connection portion 113 of the shell 11, the filter bottle cover 2B can be pressed against the sealing member 3B to drive the sealing member 3B to move relative to the open end 111 of the shell 11 of the filter bottle 1 and to achieve sealing between the open end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the sealing member 3B through the first sealing member 51.

[0084] It can be understood that the fastening connection between the filter bottle cover 2B and the filter bottle 1 of the filter bottle device of the present application refers to the proper connection between the filter bottle cover 2B and the filter bottle 1 of the filter bottle device of the present application through certain connection mode, so that the filter bottle cover 2B is firmly connected with the filter bottle 1, so that the filter bottle cover 2B can press and drive the sealing piece 3B to move relative to the opening end 111 of the shell 11 of the filter bottle 1 and abut against the opening end 111 of the shell 11. It can be understood that the connection between the filter bottle cover 2B and the filter bottle 1 of the filter bottle device of the present application can be achieved in various ways, for example, through threaded connection, rotary buckle connection or clamp connection, or other appropriate ways to achieve detachable connection. Alternatively, as shown in Figures 6B-7A , the filter bottle cover 2B and the filter bottle 1 of the filter bottle device can be connected through threaded connection. Alternatively, as shown in Figures 7D-7F , the filter bottle cover 2B and the filter bottle 1 of the filter bottle device can also be connected through rotary buckle connection.

[0085] The filter bottle device has the following advantages. Firstly, when the filter bottle cover 2B is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2B rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2B can press and drive the partition piece 3B to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first seal 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the partition piece 3B, the friction between the filter bottle cover 2B and the partition piece 3B cannot drive the partition piece 3B to rotate synchronously. Therefore, the partition piece 3B does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation of the filter bottle cover 2B and the filter bottle 1 is not hindered by the large seal, and the rotation of the filter bottle cover 2B and the filter bottle 1 can be greatly facilitated. The filter bottle device can ensure that the inner peripheral wall 321 of the lower end 32 of the partition piece 3B can press the first seal 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation (during tightening) of the filter bottle cover 2B and the filter bottle 1 is not hindered by the large seal, and the filter bottle cover 2B and the filter bottle 1 can be easily rotated. Accordingly, when the filter bottle cover 2B is rotated away (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2B and the filter bottle 1 are as far as possible independent and separated from each other in the aspects of "fixing" and "sealing", and the partition piece 3B is used to replace the filter bottle cover 2B to bear the "sealing" function, so that the filter bottle cover 2B and the filter bottle 1 can be more easily tightened and loosened. In addition, since the partition piece 3B does not rotate relative to the filter bottle 1, the first seal 51 is less likely to be twisted, and the risk of sealing failure and water leakage can be reduced. Secondly, when water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the bottle wall of the filter bottle 1 in the transverse (radial) direction from the inside of the filter bottle 1, so that a structure with higher stability can be obtained.At this time, due to the external action of the filter bottle cap 2B and the internal pressure action of the water pressure in the filter bottle 1, the open end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing member 51, so that the sealing between the filter bottle 1 and the filter bottle cap 2B is better. Again, the better sealing between the filter bottle 1 and the filter bottle cap 2B also allows manufacturers or users to choose a sealing member with a smaller compression amount compared to the traditional sealing method, so that the sealing member can be used multiple times without the need to replace the sealing member every time the filter element is replaced. The first sealing member 51 with smaller compression amount also makes the relative translation between the filter bottle 1 and the filter bottle cap 2B less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle cap 2B and the filter bottle 1. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2B, the filter bottle cap 2B, and the first sealing member 51 of the filter bottle device of the present application further overcomes the defect that the first sealing member 51 is arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2B. When the first sealing member 51 is arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2B, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the housing 11 of the filter bottle 1 expands outward, which may cause the first sealing member 51 arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2B to loosen and cause the sealing between the inner wall of the open end 111 and the outer wall of the filter bottle cap 2B to be damaged.

[0086] As shown in the accompanying drawings Figures 6A-7FAs shown, the filter bottle cover 2B of the filter bottle device of the present application comprises an opening portion 21, a mounting portion 22 extending from the opening portion 21, and a conducting portion 23B extending from the opening portion 21, the high end 31 of the partition piece 3B forms a through opening 340B, wherein the conducting portion 23B and the opening portion 21 form a first conducting channel 2301B extending from the opening portion 21 to the conducting portion 23B and a second conducting channel 2302B extending from the opening portion 21 to the conducting portion 23B, wherein the conducting portion 23B penetrates out of the through opening 340B of the high end 31 of the partition piece 3B, that is, the first conducting channel 2301B and the second conducting channel 2302B penetrate out of the through opening 340B of the high end 31 of the partition piece 3B. It can be understood that the first conducting channel 2301B is in communication with the water cavity 120 (or the water inlet of the filter element 12), and the second conducting channel 2302B is in communication with the filter element 12 (or the water outlet of the filter element 12); or, the first conducting channel 2301B is in communication with the filter element 12 (or the water outlet of the filter element 12), and the second conducting channel 2302B is in communication with the water cavity 120 (or the water inlet of the filter element 12). Further, the mounting portion 22 of the filter bottle cover 2B of the filter bottle device of the present application is adapted to be fastened and connected to the connecting portion 113 of the shell 11.

[0087] As shown in the accompanying drawings, Figures 6A-7F As shown, preferably, the conducting portion 23B of the filter bottle cover 2B of the filter bottle device of the present application and the high end 31 of the partition piece 3B are sealed. The filter bottle device of the present application further comprises a center sealing piece 54, wherein the center sealing piece 54 is arranged between the conducting portion 23B of the filter bottle cover 2B and the through opening 340B of the high end 31 of the partition piece 3B to ensure the sealing between the conducting portion 23B of the filter bottle cover 2B and the high end 31 of the partition piece 3B. It is worth noting that since the center sealing piece 54 is arranged between the conducting portion 23B of the filter bottle cover 2B and the through opening 340B of the high end 31 of the partition piece 3B, the driving force torque of the center sealing piece 54 is smaller than the torque generated by the resistance of the first sealing piece 51 (and the second sealing piece 52), so the driving force of the center sealing piece 54 is basically impossible to drive the partition piece 3B to rotate relative to the filter bottle 1.

[0088] As shown in the accompanying drawings, Figures 6A-7FAs shown, the filter bottle device further has a constraint member 4, which comprises a fixing portion 41 and a constraint portion 42, wherein the constraint portion 42 and the fixing portion 41 of the constraint member 4 are arranged at the high end 31 of the partition member 3B and the lead-through portion 23B of the filter bottle cap 2B respectively, for constraining the partition member 3B and preventing the partition member 3B from being separated from the filter bottle cap 2B.

[0089] As shown in the drawings, Figures 6A-7F As shown, the fixing portion 41 of the constraint member 4 of the filter bottle device is connected to the lead-through portion 23B, and the constraint portion 42 extends from the fixing portion 41 to the high end 31 of the partition member 3B, so as to constrain the partition member 3B. Preferably, the constraint member 4 is provided with a communication channel 40, wherein the communication channel 40 is formed in the fixing portion 41, and the communication channel 40 is in communication with the first lead-through channel 2301B. Preferably, the first lead-through channel 2301B and the second lead-through channel 2302B both pass through the communication channel 40.

[0090] As shown in the drawings, Figures 6A-7F As shown, preferably, the central sealing member 54 is constrained between the high end 31 of the partition member 3B and the lead-through portion 23B of the filter bottle cap 2B. Preferably, the fixing portion 41 of the constraint member 4 is arranged on the lead-through portion 23B by screwing. It can be understood that the connection structure between the fixing portion 41 and the lead-through portion 23B includes but is not limited to welding, screwing, threaded connection, buckle connection or interference connection, and even an additional connecting member can be used to connect the two.

[0091] As shown in the drawings, Figures 6A-7F As shown, the opening end 111 of the housing 11 of the filter bottle device comprises a main body portion 1113 and a sealing portion 1114 extending outwardly from the main body portion 1113, wherein the first sealing member 51 is arranged between the sealing portion 1114 of the opening end 111 and the inner peripheral wall 321 of the low end 32 of the partition member 3B. Preferably, the low end 32 is trumpet-shaped along its extending direction, so that the partition member 3B is more easily compressed and moved relative to the opening end 111 of the housing 11 when being pressed and driven by the filter bottle cap 2B, and the sealing between the sealing portion 1114 of the opening end 111 and the low end 32 of the partition member 3B is more easily achieved. Accordingly, the partition member 3B is more easily removed from the sealing portion 1114 of the opening end 111 when the filter bottle cap 2B is removed.

[0092] As shown in the drawings, Figures 6A-7FAs shown, the high end 31 of the partition 3B of the filter bottle device of the present application forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3B and opposite to the open end 111 of the shell 11, wherein the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3B to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2B presses and drives the partition 3B to move relative to the open end 111 of the shell 11 of the filter bottle 1. It can be understood that the guide groove 310, the open end 111 of the shell 11, the first sealing member 51 and the inner peripheral wall 321 of the low end 32 of the partition 3B cooperate with each other, so that the guide groove 310 and the inner peripheral wall 321 of the low end 32 of the partition 3B better wrap the first sealing member 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3B to deform outwardly, the guide groove 310 can cause the inner peripheral wall 321 of the low end 32 of the partition 3B to always press the first sealing member 51 and deform outwardly synchronously with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner peripheral wall 321 of the low end 32 of the partition 3B deforms excessively outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner peripheral wall 321 of the low end 32 of the partition 3B cannot deform excessively outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3B to deform outwardly, the first sealing member 51 is always pressed by the inner peripheral wall 321 of the low end 32 of the partition 3B to maintain the seal between the inner peripheral wall 321 of the low end 32 of the partition 3B and the open end 111 of the shell 11.When the water pressure in the filter bottle 1 drops and causes the open end 111 of the shell 11 to deform inward, the open end 111 of the shell 11 presses inward against the guide groove 310, so that the guide groove 310 further pulls the inner circumferential wall 321 of the lower end 32 of the sealing member 3B to deform inward, so that the inner circumferential wall 321 of the lower end 32 of the sealing member 3B always presses the first sealing member 51 and deforms inward synchronously with the open end 111 of the shell 11.

[0093] As shown in the attached figure Figures 6A-7F As shown, preferably, the filter bottle device of the present invention further includes a second sealing member 52, wherein the second sealing member 52 is disposed between the inner wall 1112 of the open end 111 of the housing 11 and the groove wall 3101 of the guide groove 310. The second sealing member 52 provides a flexible connection between the inner wall 1112 of the open end 111 of the housing 11 and the groove wall 3101 of the guide groove 310. In particular, the housing 11 and the sealing member 3B are often made of plastic material, which easily deforms the product after injection molding. The flexible connection reduces the high production precision required to ensure that the inner diameter of the top end 1115 of the open end 111 matches the outer diameter of the guide groove 310.

[0094] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3B and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3B and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3B and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3B to deform outward, at this time, the low end 32 of the partition 3B moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can realize the sealing between the open end 111 of the shell 11 and the partition piece 3B; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3B and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3B and the open end 111 of the shell 11; when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3B and the outer wall 1111 of the open end 111 of the shell 11 when the water pressure in the filter bottle 1 is high, the water pressure will compress and drive the low end 32 of the partition piece 3B to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3B to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby realizing the self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52. It can be understood that when the user or operator unscrews the filter bottle cap 2B, the restraining portion 42 of the restraining piece 4 presses against the partition piece 3B, and the restraining portion 42 of the restraining piece 4 can compress and drive the partition piece 3B to move relative to the open end 111 of the shell 11 of the filter bottle 1 and move away from the extension 112 of the shell 11, and the restraining portion 42 of the restraining piece 4 (or the filter bottle cap 2B) and the partition piece 3B rotate relative to each other, at this time, the torque of the frictional force exerted on the partition piece 3B by the central seal 54 and the restraining portion 42 of the restraining piece 4 is smaller than the torque of the frictional force exerted on the partition piece 3B by the first seal 51 and the second seal 52, therefore, when the user or operator unscrews the filter bottle cap 2B, the partition piece 3B basically does not rotate, but only translates relative to the shell 11.

[0095] As shown in the drawings Figures 8A-9BAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3B and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3B and the retaining bracket 53 is surrounded by the inner wall 1112 of the open end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3B by welding, or can be fixed to the partition 3B by other means such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3A. Preferably, the retaining bracket 53 further has a gap 531, through which a user can use a screwdriver or other simple tools to remove the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the open end 111 of the housing 11, and the second seal 52 is arranged in the guide groove 310 of the partition 3B, so that the first seal 51 and the second seal 52 are both convenient to install and replace.

[0096] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and Figures 8A-9BAs shown, the filter bottle device according to the third embodiment of the present application is illustrated, which comprises a filter bottle 1, a filter core 12, a filter bottle cap 2E, a partition 3E and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3E comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extending portion 112, wherein the connecting portion 113 extends between the open end 111 and the extending portion 112, the extending portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110 having a mounting opening 1101 formed at the open end 111 of the housing 11, the filter core 12 is arranged in the receiving cavity 110, wherein the filter bottle cap 2E is adapted to be detachably connected to the outer side wall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3E is located at the inner side of the filter bottle cap 2E. Preferably, the filter core 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the partition 3E is arranged between the filter bottle cap 2E and the filter core 12, the low end 32 of the partition 3E is arranged between the inner side wall 24 of the filter bottle cap 2E and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is arranged between the outer wall 1111 of the open end 111 of the housing 11 and the inner circumferential wall 321 of the low end 32 of the partition 3E, wherein when the filter bottle cap 2E is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2E abuts against the partition 3E, the filter bottle cap 2E is capable of driving the partition 3E to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieving the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3E through the first seal 51. In other words, when the filter bottle cap 2E is tightly connected to the connecting portion 113 of the housing 11, the filter bottle cap 2E is capable of abutting against the partition 3E to drive the partition 3E to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3E through the first seal 51.

[0097] It can be understood that the fastening connection between the filter bottle cap 2E and the filter bottle 1 of the filter bottle device of the present application refers to the appropriate connection between the filter bottle cap 2E and the filter bottle 1 of the filter bottle device of the present application through a certain connection mode, so that the filter bottle cap 2E is firmly connected with the filter bottle 1, so that the filter bottle cap 2E can press and drive the sealing piece 3E to move relative to the opening end 111 of the shell 11 of the filter bottle 1 and abut against the opening end 111 of the shell 11. It can be understood that the connection between the filter bottle cap 2E and the filter bottle 1 of the filter bottle device of the present application can be achieved in various ways, for example, through threaded connection, rotary buckle connection or clamp connection, or other appropriate ways to achieve detachable connection.

[0098] The filter bottle device has the following advantages. First, when the filter bottle cover 2E is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2E rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2E can press and drive the partition piece 3E to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first seal 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the partition piece 3E, the friction between the filter bottle cover 2E and the partition piece 3E will be difficult to drive the partition piece 3E to rotate synchronously. Therefore, the partition piece 3E basically does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, thereby basically eliminating the obstruction of the large-size seal to the relative rotation of the filter bottle cover 2E and the filter bottle 1, and greatly reducing the difficulty of tightening the filter bottle cover 2E and the filter bottle 1. The filter bottle device can make the operator or user not need to tighten the filter bottle cover 2E with great force, but only need to rotate to a preset position to ensure that the inner peripheral wall 321 of the lower end 32 of the partition piece 3E can press the first seal 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1. In this way, the relative rotation (tightening) between the filter bottle cover 2E and the filter bottle 1 of the filter bottle device is basically not hindered by the large-size seal, and is easy to rotate. Accordingly, when the filter bottle cover 2E is rotated away (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2E and the filter bottle 1 are as far as possible to be independent and separated from each other in terms of “fixing” and “sealing”, and the partition piece 3E is used to replace the filter bottle cover 2E to bear the “sealing” function, so that the filter bottle cover 2E and the filter bottle 1 are easier to tighten and unscrew. In addition, since the partition piece 3E basically does not rotate relative to the filter bottle 1, the first seal 51 is less likely to be twisted, thereby reducing the risk of sealing failure and water leakage. Second, when water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the bottle wall of the filter bottle 1 from the inside of the filter bottle 1 in the transverse (radial) direction, so as to obtain a structure with higher stability.At this time, due to the external action of the filter bottle cap 2E and the internal pressure action of the water pressure in the filter bottle 1, the open end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing member 51, so that the sealing between the filter bottle 1 and the filter bottle cap 2E is better. Again, the better sealing between the filter bottle 1 and the filter bottle cap 2E also allows manufacturers or users to choose a sealing member with a smaller compression amount compared to the traditional sealing method, so that the sealing member can be used multiple times without the need to replace the sealing member every time the filter element is replaced. The first sealing member 51 with smaller compression amount also makes the relative translation between the filter bottle 1 and the filter bottle cap 2E less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle cap 2E and the filter bottle 1. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2E, the filter bottle cap 2E, and the first sealing member 51 of the filter bottle device of the present application further overcomes the defect that the first sealing member 51 is arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2E. When the first sealing member 51 is arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2E, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the housing 11 of the filter bottle 1 expands outward, which may cause the first sealing member 51 arranged between the inner wall of the open end 111 of the housing 11 and the outer wall of the filter bottle cap 2E to loosen and cause the sealing between the inner wall of the open end 111 and the outer wall of the filter bottle cap 2E to be damaged.

[0099] As shown in the accompanying drawings Figures 8A-9BAs shown, the filter bottle cover 2E of the filter bottle device of the present application comprises an opening portion 21, a mounting portion 22 extending from the opening portion 21, a lead-through portion 23E extending from the opening portion 21, a first channel forming portion 25E and a second channel forming portion 26E, the high end 31 of the partition 3E forms a through opening 340E, wherein the lead-through portion 23E penetrates out of the through opening 340E of the high end 31, wherein the first channel forming portion 25E is surrounded by the opening portion 21, the second channel forming portion 26E is surrounded by the first channel forming portion 25E, and the first channel forming portion 25E and the opening portion 21 form a first channel 2101E therebetween, the first channel forming portion 25E and the second channel forming portion 26E form a second channel 2102E therebetween, and the second channel forming portion 26E forms a third channel 2103E, wherein the first channel 2101E, the second channel 2102E and the third channel 2103E are separated from each other by the first channel forming portion 25E and the second channel forming portion 26E. Further, the mounting portion 22 of the filter bottle cover 2E of the filter bottle device of the present application is adapted to be fastened and connected to the connecting portion 113 of the housing 11.

[0100] It is appreciated that the filter cartridge 12 can be a reverse osmosis membrane filter cartridge or a three-port ultrafiltration membrane filter cartridge, wherein the first passage 2101E is adapted to communicate with the water cavity 120 (or the water inlet 121 of the filter cartridge 12), the second passage 2102E is adapted to communicate with the water outlet 122 of the filter cartridge 12, and the third passage 2103E is adapted to communicate with the blowdown outlet 123 of the filter cartridge 12. Exemplarily, when the filter cartridge 12 is a reverse osmosis membrane filter cartridge, the water cavity 120 is separated by the filter cartridge 12 into a first water cavity 1201 and a second water cavity 1202, wherein the first water cavity 1201 communicates with the first passage 2101E, the water inlet 121 of the filter cartridge 12 communicates with the first water cavity 1201, the water outlet 122 of the filter cartridge 12 communicates with the second passage 2102E, the second water cavity 1202 respectively communicates with the blowdown end 125 of the filter cartridge 12 and the blowdown lower end 1241 of the central blowdown pipe 124 of the filter cartridge 12, the blowdown upper end 1242 of the central blowdown pipe 124 of the filter cartridge 12 forms the blowdown outlet 123 of the filter cartridge 12, and the blowdown outlet 123 of the filter cartridge 12 communicates with the third passage 2103E. Raw water flows into the first passage 2101E, passes through the first water cavity 1201, flows into the water inlet 121 of the filter cartridge 12, and purified water flows out of the water outlet 122 of the filter cartridge 12, then passes through the second passage 2102E, and wastewater flows into the second water cavity 1202 through the blowdown end 125 of the filter cartridge 12, then flows through the blowdown lower end 1241 and the blowdown upper end 1242 (the blowdown outlet 123 of the filter cartridge 12) of the central blowdown pipe 124, and finally flows into the third passage 2103E for discharge.

[0101] As shown in the accompanying drawings, Figures 8A-9B Preferably, the through portion 23E of the filter bottle cap 2E and the high end 31 of the partition 3E are sealed. The filter bottle device of the present application further comprises a central seal 54, wherein the central seal 54 is arranged between the through opening 340E of the high end 31 of the partition 3E and the through portion 23E of the filter bottle cap 2E to ensure the sealing between the through portion 23E of the filter bottle cap 2E and the high end 31 of the partition 3E. It is worth noting that since the central seal 54 is arranged between the through opening 340E of the high end 31 of the partition 3E and the through portion 23E of the filter bottle cap 2E, the driving torque of the central seal 54 is smaller than the torque generated by the resistance of the first seal 51 (and the second seal 52), so the driving force of the central seal 54 is basically impossible to drive the partition 3E to rotate relative to the filter bottle 1.

[0102] As shown in the drawings Figures 8A-9B The filter bottle device further has a constraint member 4, which includes a fixing portion 41 and a constraint portion 42, wherein the constraint portion 42 and the fixing portion 41 of the constraint member 4 are arranged at the high end 31 of the partition member 3E and the lead-through portion 23E of the filter bottle cap 2E respectively, for constraining the partition member 3E and preventing the partition member 3E from being separated from the filter bottle cap 2E.

[0103] As shown in the drawings Figures 8A-9B The fixing portion 41 of the constraint member 4 of the filter bottle device is connected to the lead-through portion 23E, and the constraint portion 42 extends from the fixing portion 41 to the high end 31 of the partition member 3E, so as to constrain the partition member 3E. Preferably, the constraint member 4 is provided with a communication channel 40, wherein the communication channel 40 is formed in the fixing portion 41, and the communication channel 40 is in communication with the first channel 2101E. Preferably, the first channel 2101E, the second channel 2102E and the third channel 2103E all pass through the communication channel 40.

[0104] As shown in the drawings Figures 8A-9B Preferably, the central sealing member 54 is constrained between the high end 31 of the partition member 3E and the lead-through portion 23E of the filter bottle cap 2E. Preferably, the fixing portion 41 of the constraint member 4 is arranged on the lead-through portion 23E by screwing. It can be understood that the connection structure between the fixing portion 41 and the lead-through portion 23E includes but is not limited to welding, screwing, threaded connection, buckle connection or interference connection, and even an additional connecting member can be used to connect the two.

[0105] As shown in the drawings Figures 8A-9B The opening end 111 of the housing 11 of the filter bottle device includes a main body portion 1113 and a sealing portion 1114 extending outwardly from the main body portion 1113, wherein the first sealing member 51 is arranged between the sealing portion 1114 of the opening end 111 and the inner peripheral wall 321 of the low end 32 of the partition member 3E. Preferably, the low end 32 is trumpet-shaped along its extending direction, so that the partition member 3E is more easily compressed and moved relative to the opening end 111 of the housing 11 when being pressed and driven by the filter bottle cap 2E, and the sealing between the sealing portion 1114 of the opening end 111 and the low end 32 of the partition member 3E is more easily achieved. Accordingly, the partition member 3E is more easily removed from the sealing portion 1114 of the opening end 111 when the filter bottle cap 2E is removed.

[0106] As shown in the drawingsFigures 8A-9BAs shown, the high end 31 of the partition 3E of the filter bottle device of the present application forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3E and opposite to the open end 111 of the shell 11, wherein the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3E to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2E presses and drives the partition 3E to move relative to the open end 111 of the shell 11 of the filter bottle 1. It can be understood that the guide groove 310, the open end 111 of the shell 11, the first sealing member 51 and the inner peripheral wall 321 of the low end 32 of the partition 3E cooperate with each other, so that the guide groove 310 and the inner peripheral wall 321 of the low end 32 of the partition 3E better wrap the first sealing member 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3E to deform outwardly, the guide groove 310 can cause the inner peripheral wall 321 of the low end 32 of the partition 3E to always press the first sealing member 51 and deform outwardly synchronously with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner peripheral wall 321 of the low end 32 of the partition 3E deforms excessively outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner peripheral wall 321 of the low end 32 of the partition 3E cannot deform excessively outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3E to deform outwardly, the first sealing member 51 is always pressed by the inner peripheral wall 321 of the low end 32 of the partition 3E to maintain the seal between the inner peripheral wall 321 of the low end 32 of the partition 3E and the open end 111 of the shell 11.When the water pressure inside the filter bottle 1 drops and causes the open end 111 of the shell 11 to deform inwardly, the open end 111 of the shell 11 presses against the guide groove 310 inwardly, causing the guide groove 310 to further pull the inner peripheral wall 321 of the low end 32 of the partition piece 3E to deform inwardly as well, so that the inner peripheral wall 321 of the low end 32 of the partition piece 3E always presses against the first sealing piece 51 and deforms inwardly synchronously with the open end 111 of the shell 11.

[0107] As shown in the accompanying drawings Figures 8A-9B Preferably, the filter bottle device of the present application further comprises a second sealing piece 52, wherein the second sealing piece 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310. The second sealing piece 52 makes the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 flexibly connected. In particular, the shell 11 and the partition piece 3E are usually made of plastic material, which causes the product to be prone to deformation after injection molding. The flexible connection reduces the higher production precision requirement for the inner diameter of the top end 1115 of the open end 111 to match the outer diameter of the guide groove 310.

[0108] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3E and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3E and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3E and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3E to deform outward, at this time, the low end 32 of the partition 3E moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can realize the sealing between the open end 111 of the shell 11 and the partition piece 3E; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3E and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3E and the open end 111 of the shell 11; when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3E and the outer wall 1111 of the open end 111 of the shell 11 when the water pressure in the filter bottle 1 is high, the water pressure will compress and drive the low end 32 of the partition piece 3E to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3E to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby realizing the self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52. It can be understood that when the user or operator unscrews the filter bottle cap 2E, the restraining portion 42 of the restraining piece 4 presses against the partition piece 3E, and the restraining portion 42 of the restraining piece 4 can compress and drive the partition piece 3E to move relative to the open end 111 of the shell 11 of the filter bottle 1 and move away from the extension 112 of the shell 11, and the restraining portion 42 of the restraining piece 4 (or the filter bottle cap 2E) and the partition piece 3E rotate relative to each other, at this time, the torque of the frictional force exerted on the partition piece 3E by the central seal 54 and the restraining portion 42 of the restraining piece 4 is smaller than the torque of the frictional force exerted on the partition piece 3E by the first seal 51 and the second seal 52, therefore, when the user or operator unscrews the filter bottle cap 2E, the partition piece 3E basically does not rotate, but only translates relative to the shell 11.

[0109] As shown in the drawings Figures 10A-11BAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3E and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3E and the retaining bracket 53 is surrounded by the inner wall 1112 of the open end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3E by welding, or can be fixed to the partition 3E by other means such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3E. Preferably, the retaining bracket 53 further has a gap 531, through which a user can use a screwdriver or other simple tool to remove the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the open end 111 of the housing 11, and the second seal 52 is arranged in the guide groove 310 of the partition 3E, so that both the first seal 51 and the second seal 52 are convenient to install and replace.

[0110] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and Figures 10A-11BAs shown, the filter bottle device according to the fourth embodiment of the present application is illustrated, which comprises a filter bottle 1, a filter core 12, a filter bottle cap 2C, a partition 3C and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3C comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extending portion 112, wherein the connecting portion 113 extends between the open end 111 and the extending portion 112, the extending portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110 having a mounting opening 1101 formed at the open end 111 of the housing 11, the filter core 12 is arranged in the receiving cavity 110, wherein the filter bottle cap 2C is adapted to be detachably connected to the outer side wall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3C is located at the inner side of the filter bottle cap 2C. Preferably, the filter core 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the partition 3C is arranged between the filter bottle cap 2C and the filter core 12, the low end 32 of the partition 3C is arranged between the inner side wall 24 of the filter bottle cap 2C and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is arranged between the outer wall 1111 of the open end 111 of the housing 11 and the inner peripheral wall 321 of the low end 32 of the partition 3C, wherein when the filter bottle cap 2C is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2C abuts against the partition 3C, the filter bottle cap 2C is capable of driving the partition 3C to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieving the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3C through the first seal 51. In other words, when the filter bottle cap 2C is tightly connected to the connecting portion 113 of the housing 11, the filter bottle cap 2C is capable of abutting against the partition 3C to drive the partition 3C to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3C through the first seal 51.

[0111] It can be understood that the fastening connection between the filter bottle cap 2C and the filter bottle 1 of the filter bottle device of the present application refers to the appropriate connection between the filter bottle cap 2C and the filter bottle 1 of the filter bottle device of the present application through a certain connection mode, so that the filter bottle cap 2C is firmly connected with the filter bottle 1, so that the filter bottle cap 2C can press and drive the sealing piece 3C to move relative to the opening end 111 of the shell 11 of the filter bottle 1 and abut against the opening end 111 of the shell 11. It can be understood that the connection between the filter bottle cap 2C and the filter bottle 1 of the filter bottle device of the present application can be achieved in various ways, for example, through threaded connection, rotary buckle connection or clamp connection, or other appropriate ways to achieve detachable connection.

[0112] The filter bottle device has the following advantages. Firstly, when the filter bottle cover 2C is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2C rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2C can press and drive the partition piece 3C to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first seal 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the partition piece 3C, the friction between the filter bottle cover 2C and the partition piece 3C cannot drive the partition piece 3C to rotate synchronously. Therefore, the partition piece 3C does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation of the filter bottle cover 2C and the filter bottle 1 is not hindered by the large seal, and the rotation of the filter bottle cover 2C and the filter bottle 1 can be greatly facilitated. The filter bottle device can ensure that the inner peripheral wall 321 of the lower end 32 of the partition piece 3C can press the first seal 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1 when the filter bottle cover 2C is rotated to a predetermined position, so that the rotation (during tightening) of the filter bottle cover 2C and the filter bottle 1 is not hindered by the large seal, and the filter bottle cover 2C and the filter bottle 1 can be easily rotated. Accordingly, when the filter bottle cover 2C is rotated away (or unscrewed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2C and the filter bottle 1 are as far as possible independent and separated from each other in terms of “fixing” and “sealing”, and the partition piece 3C is used to replace the filter bottle cover 2C to bear the “sealing” function, so that the filter bottle cover 2C and the filter bottle 1 can be more easily tightened and loosened. In addition, since the partition piece 3C does not rotate relative to the filter bottle 1, the first seal 51 is less likely to be twisted, and the risk of sealing failure and water leakage can be reduced. Secondly, when water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the wall of the filter bottle 1 from the inside of the filter bottle 1 in the transverse (radial) direction, so that the structure has higher stability.At this time, due to the external action of the filter bottle cap 2C and the internal pressure action of the water pressure in the filter bottle 1, the opening end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing element 51, so that the sealing between the filter bottle 1 and the sealing element 3C is better. Again, the better sealing between the sealing element 3C and the filter bottle 1 also allows manufacturers or users to choose a sealing element with a smaller compression amount compared to the traditional sealing method, thereby allowing the sealing element to be used multiple times without having to replace the sealing element each time the filter core is replaced. The first sealing element 51 with a smaller compression amount also makes the relative translation between the sealing element 3C and the filter bottle 1 less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle cap 2C and the filter bottle 1. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2C, the sealing element 3C and the first sealing element 51 of the filter bottle device of the present application further overcomes the defect that the first sealing element 51 is arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing element 3C. When the first sealing element 51 is arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing element 3C, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the shell 11 of the filter bottle 1 expands outward, which may cause the first sealing element 51 arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing element 3C to loosen and cause the seal between the inner wall of the opening end 111 and the outer wall of the sealing element 3C to be broken.

[0113] As shown in the accompanying drawings, Figures 10A-11B The filter bottle device further comprises a limiting element 9, the filter bottle cap 2C comprises an opening part 21 and a mounting part 22 extending from the opening part 21, and the sealing element 3C further comprises a positioning part 33C and a limiting part 34C, wherein the low end 32 and the positioning part 33C respectively integrally extend from two opposite sides of the high end 31, and the limiting part 34C extends outward from the positioning part 33C, wherein the opening part 21 forms a through opening 210, and the positioning part 33C penetrates out of the through opening 210 of the opening part 21, and the limiting element 9 is adapted to be arranged between the limiting part 34C and the opening part 21 of the filter bottle cap 2C, so that the filter bottle cap 2C and the sealing element 3C cannot relatively translate and can relatively rotate with smaller resistance. It can be understood that, Figures 10A-11BThe water inlet and outlet of the filter bottle device are arranged at the end of the filter bottle device away from the filter bottle cap 2C, and the filter bottle cap 2C does not have a water passage opening. The limiting member 9 is in the form of a snap spring, and can also be in the form of a nut or other limiting form, for example, can be fixed to the limiting portion 34C of the partition member 3C by a nut.

[0114] As shown in the drawings Figures 10A-11B The open end 111 of the housing 11 of the filter bottle device includes a main body portion 1113 and a sealing portion 1114 extending outwardly from the main body portion 1113, and the first sealing member 51 is arranged between the sealing portion 1114 of the open end 111 and the inner peripheral wall 321 of the lower end 32 of the partition member 3C. Preferably, the lower end 32 is in the form of a bell mouth along the extending direction thereof, so that the partition member 3C is more easily compressed and moved relative to the open end 111 of the housing 11 and more easily gradually realizes the sealing between the sealing portion 1114 of the open end 111 and the lower end 32 of the partition member 3C when being pressed and driven by the filter bottle cap 2C. Correspondingly, the partition member 3C is more easily removed from the sealing portion 1114 of the open end 111 when the filter bottle cap 2C is removed.

[0115] As shown in the drawings Figures 10A-11BAs shown, the high end 31 of the partition 3C of the filter bottle device of the present application forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3C and opposite to the open end 111 of the shell 11, and wherein the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3C to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2C presses and drives the partition 3C to move relative to the open end 111 of the shell 11 of the filter bottle 1. The guide groove 310, the open end 111 of the shell 11, the first seal 51 and the inner peripheral wall 321 of the low end 32 of the partition 3C cooperate with each other, so that the guide groove 310 and the inner peripheral wall 321 of the low end 32 of the partition 3C better wrap the first seal 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3C to deform outwardly, the guide groove 310 can cause the inner peripheral wall 321 of the low end 32 of the partition 3C to always press the first seal 51 and synchronously deform outwardly with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner peripheral wall 321 of the low end 32 of the partition 3C is excessively deformed outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner peripheral wall 321 of the low end 32 of the partition 3C cannot be excessively deformed outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3C to deform outwardly, the first seal 51 is always pressed by the inner peripheral wall 321 of the low end 32 of the partition 3C to maintain the seal between the inner peripheral wall 321 of the low end 32 of the partition 3C and the open end 111 of the shell 11.When the water pressure inside the filter bottle 1 drops and causes the open end 111 of the shell 11 to deform inwardly, the open end 111 of the shell 11 presses against the guide groove 310 inwardly, causing the guide groove 310 to further pull the inner peripheral wall 321 of the low end 32 of the partition piece 3C to deform inwardly as well, so that the inner peripheral wall 321 of the low end 32 of the partition piece 3C always presses against the first sealing piece 51 and deforms inwardly synchronously with the open end 111 of the shell 11.

[0116] As shown in the accompanying drawings Figures 10A-11B Preferably, the filter bottle device of the present application further comprises a second sealing piece 52, wherein the second sealing piece 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310. The second sealing piece 52 makes the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 flexibly connected. In particular, the shell 11 and the partition piece 3C are usually made of plastic material, which causes the product to be prone to deformation after injection molding. The flexible connection reduces the higher production precision requirement for the inner diameter of the top end 1115 of the open end 111 to match the outer diameter of the guide groove 310.

[0117] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3C and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3C and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3C and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3C to deform outward, at this time, the low end 32 of the partition 3C moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can achieve the sealing between the open end 111 of the shell 11 and the partition piece 3C; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3C and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3C and the open end 111 of the shell 11; when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3C and the outer wall 1111 of the open end 111 of the shell 11 when the water pressure in the filter bottle 1 is high, the water pressure will compress and drive the low end 32 of the partition piece 3C to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3C to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52. It can be understood that when the user or operator unscrews the filter bottle cap 2C, the torque of the frictional force exerted by the limiting piece 9 on the partition piece 3C is less than the torque of the frictional force exerted by the first seal 51 and the second seal 52 on the partition piece 3C, so when the user or operator unscrews the filter bottle cap 2C, the partition piece 3C does not rotate substantially, but only translates relative to the shell 11. As shown in the drawings. Figures 12A-13BAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3C and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3C and the retaining bracket 53 is surrounded by the inner wall 1112 of the open end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3C by welding, or can be fixed to the partition 3C by other means such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3C. Preferably, the retaining bracket 53 further has a gap 531, through which a user can use a screwdriver or other simple tool to remove the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the open end 111 of the housing 11, and the second seal 52 is arranged in the guide groove 310 of the partition 3C, so that both the first seal 51 and the second seal 52 are convenient to install and replace.

[0118] The accompanying drawings Figures 12A-13Bshown is an alternative embodiment of the filter bottle device according to the fourth embodiment of the present application, which comprises a filter bottle 1, a filter core 12, a filter bottle cap 2D, a partition 3D and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3D comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extension portion 112, wherein the connecting portion 113 extends between the open end 111 and the extension portion 112, the extension portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110 having a mounting opening 1101 formed at the open end 111 of the housing 11, the filter core 12 is arranged in the receiving cavity 110, wherein the filter bottle cap 2D is adapted to be detachably connected to the outer side wall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3D is located inside the filter bottle cap 2D. Preferably, the filter core 12 and the housing 11 form a water cavity 120 therebetween. Preferably, the high end 31 of the partition 3D is arranged between the filter bottle cap 2D and the filter core 12, the low end 32 of the partition 3D is arranged between the inner side wall 24 of the filter bottle cap 2D and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is arranged between the outer wall 1111 of the open end 111 of the housing 11 and the inner peripheral wall 321 of the low end 32 of the partition 3D, wherein when the filter bottle cap 2D is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2D abuts against the partition 3D, the filter bottle cap 2D is capable of driving the partition 3D to move relative to the open end 111 of the housing 11 of the filter bottle 1 and to achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3D through the first seal 51. In other words, when the filter bottle cap 2D is tightly connected to the connecting portion 113 of the housing 11, the filter bottle cap 2D is capable of abutting against the partition 3D to drive the partition 3D to move relative to the open end 111 of the housing 11 of the filter bottle 1 and to achieve the sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3D through the first seal 51.

[0119] It can be understood that the fastening connection between the filter bottle cap 2D and the filter bottle 1 of the filter bottle device of the present application refers to the appropriate connection between the filter bottle cap 2D and the filter bottle 1 of the filter bottle device of the present application through a certain connection mode, so that the filter bottle cap 2D is firmly connected with the filter bottle 1, so that the filter bottle cap 2D can press and drive the sealing piece 3D to move relative to the opening end 111 of the shell 11 of the filter bottle 1 and abut against the opening end 111 of the shell 11. It can be understood that the connection between the filter bottle cap 2D and the filter bottle 1 of the filter bottle device of the present application can be achieved in various ways, for example, through threaded connection, rotary buckle connection or clamp connection, or other appropriate ways to achieve detachable connection.

[0120] The filter bottle device has the following advantages. Firstly, when the filter bottle cover 2D is fastened to the connecting portion 113 of the shell 11 of the filter bottle 1, the filter bottle cover 2D rotates and moves towards the extending portion 112 of the shell 11 of the filter bottle 1, so that the filter bottle cover 2D can press and drive the partition piece 3D to move towards the extending portion 112 of the shell 11 of the filter bottle 1. In this process, due to the first seal 51 between the opening end 111 of the shell 11 of the filter bottle 1 and the lower end 32 of the partition piece 3D, the friction between the filter bottle cover 2D and the partition piece 3D will not drive the partition piece 3D to rotate synchronously. Therefore, the partition piece 3D basically does not rotate relative to the opening end 111 of the shell 11 of the filter bottle 1, but only translates relative to the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, so that the rotation of the filter bottle cover 2D and the filter bottle 1 is basically not hindered by the large-size seal, and the difficulty of screwing the filter bottle cover 2D and the filter bottle 1 is greatly reduced. The filter bottle device can make the operator or user not need to screw the filter bottle cover 2D tightly, but only need to rotate to a preset position to ensure that the inner circumferential wall 321 of the lower end 32 of the partition piece 3D can press the first seal 51 against the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1. Therefore, the relative rotation (screwing) between the filter bottle cover 2D and the filter bottle 1 of the filter bottle device is basically not hindered by the large-size seal, and is easy to rotate. Accordingly, when the filter bottle cover 2D is unscrewed (or removed) from the outer wall 1111 of the opening end 111 of the shell 11 of the filter bottle 1, it is also relatively easy. In other words, the filter bottle cover 2D and the filter bottle 1 are as far as possible independent and separated from each other in the aspects of "fixing" and "sealing", the partition piece 3D is used to replace the filter bottle cover 2D to bear the "sealing" function, so that the filter bottle cover 2D and the filter bottle 1 are easier to screw and unscrew. In addition, since the partition piece 3D basically does not rotate relative to the filter bottle 1, the first seal 51 is less likely to be distorted, and the risk of sealing failure and water leakage is reduced. Secondly, when the water pressure acts on the inside of the filter bottle 1 of the filter bottle device, the water pressure can be used to support the bottle wall of the filter bottle 1 from the inside of the filter bottle 1 in the transverse (radial) direction, so that a structure with higher stability is obtained.At this time, due to the external action of the filter bottle cap 2D and the internal pressure action of the water pressure in the filter bottle 1, the opening end 111 of the filter bottle 1 has better roundness and expands outward to further press the first sealing member 51, so that the sealing between the filter bottle 1 and the sealing member 3D is better. Again, the better sealing between the sealing member 3D and the filter bottle 1 also allows manufacturers or users to choose a sealing member with a smaller compression amount compared to the traditional sealing method, thereby allowing the sealing member to be used multiple times without the need to replace the sealing member each time the filter core is replaced. The first sealing member 51 with smaller compression amount also makes the relative translation between the sealing member 3D and the filter bottle 1 less obstructed, which is beneficial to further reduce the difficulty of tightening and opening the filter bottle cap 2D and the filter bottle 1. Finally, the arrangement of the filter bottle 1, the filter bottle cap 2D, the sealing member 3D and the first sealing member 51 of the filter bottle device of the present application further overcomes the defect that the first sealing member 51 is arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing member 3D. When the first sealing member 51 is arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing member 3D, due to the water pressure in the filter bottle 1 being from inside to outside, when the inner wall of the filter bottle 1 is stressed, the shell 11 of the filter bottle 1 expands outward, which may cause the first sealing member 51 arranged between the inner wall of the opening end 111 of the shell 11 and the outer wall of the sealing member 3D to loosen and cause the sealing between the inner wall of the opening end 111 and the outer wall of the sealing member 3D to be damaged.

[0121] As shown in the accompanying drawings, Figures 12A-13B The filter bottle device further comprises a limiting member 9D, the filter bottle cap 2D comprises a limiting portion 21D and a mounting portion 22 extending from the limiting portion 21D, the sealing member 3D further has a positioning opening 33D, wherein the low end 32 integrally extends from the high end 31, wherein the limiting portion 21D forms a limiting chamber 210D, and one end of the limiting member 9D is adapted to be arranged at the high end 31 of the sealing member 3D, the other end of the limiting member 9D extends out of the positioning opening 33D and is adapted to be fixedly arranged in the limiting chamber 210D, so that the filter bottle cap 2D and the sealing member 3D cannot relatively translate and can relatively rotate with smaller resistance. Preferably, the limiting member 9D is a positioning screw, the positioning screw 9D forms a positioning column 91D matched with the positioning opening 33D, a threaded portion 92D fixed in the limiting chamber 210D and a central sealing member 93D between the positioning opening 33D and the positioning column 91D, which can ensure the sealing between the sealing member 3D and the positioning screw 9D. It can be understood, Figures 12A-13BThe water inlet and outlet of the filter bottle device are arranged at the end of the filter bottle device away from the filter bottle cap 2D, and the filter bottle cap 2D does not have a water passage opening.

[0122] As shown in the drawings Figures 12A-13B The open end 111 of the housing 11 of the filter bottle device includes a main body portion 1113 and a sealing portion 1114 extending outwardly from the main body portion 1113, and the first sealing member 51 is arranged between the sealing portion 1114 of the open end 111 and the inner peripheral wall 321 of the lower end 32 of the partition member 3D. Preferably, the lower end 32 is trumpet-shaped along its extending direction, so that the partition member 3D is more easily compressed and moved relative to the open end 111 of the housing 11 and more easily gradually seals between the sealing portion 1114 of the open end 111 and the lower end 32 of the partition member 3D when being pressed and driven by the filter bottle cap 2D. Accordingly, the partition member 3D is more easily removed from the sealing portion 1114 of the open end 111 when the filter bottle cap 2D is removed.

[0123] As shown in the drawings Figures 12A-13BAs shown, the high end 31 of the partition 3D of the filter bottle device forms a guide groove 310, wherein the guide groove 310 is arranged adjacent to the low end 32 of the partition 3D and opposite to the open end 111 of the shell 11, and the top end 1115 of the open end 111 of the shell 11 is arranged to be placed in the guide groove 310 (the inner diameter of the top end 1115 of the open end 111 is slightly larger than the outer diameter of the guide groove 310). Accordingly, the guide groove 310 of the high end 31 can guide the top end 1115 of the open end 111 of the shell 11 into the guide groove 310 and guide and help the low end 32 of the partition 3D to press against the outer wall 1111 of the open end 111 of the shell 11 when the filter bottle cap 2D presses and drives the partition 3D to move relative to the open end 111 of the shell 11 of the filter bottle 1. It can be understood that the guide groove 310, the open end 111 of the shell 11, the first sealing member 51 and the inner peripheral wall 321 of the low end 32 of the partition 3D cooperate with each other, so that the guide groove 310 and the inner peripheral wall 321 of the low end 32 of the partition 3D better wrap the first sealing member 51. It can be understood that when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3D to deform outwardly, the guide groove 310 can cause the inner peripheral wall 321 of the low end 32 of the partition 3D to always press the first sealing member 51 and deform outwardly synchronously with the open end 111 of the shell 11 (because due to the positioning effect of the guide groove 310, when the inner peripheral wall 321 of the low end 32 of the partition 3D deforms excessively outwardly under water pressure, the guide groove 310 will press against the inner wall 1112 of the open end 111 of the shell 11, so that the inner peripheral wall 321 of the low end 32 of the partition 3D cannot deform excessively outwardly), that is, when the water pressure in the filter bottle 1 causes the open end 111 of the shell 11 and the inner peripheral wall 321 of the low end 32 of the partition 3D to deform outwardly, the first sealing member 51 is always pressed by the inner peripheral wall 321 of the low end 32 of the partition 3D to maintain the seal between the inner peripheral wall 321 of the low end 32 of the partition 3D and the open end 111 of the shell 11.When the water pressure inside the filter bottle 1 drops and causes the open end 111 of the shell 11 to deform inwardly, the open end 111 of the shell 11 presses against the guide groove 310 inwardly, causing the guide groove 310 to further pull the inner peripheral wall 321 of the low end 32 of the partition 3D to deform inwardly as well, so that the inner peripheral wall 321 of the low end 32 of the partition 3D always presses against the first seal 51 and deforms inwardly synchronously with the open end 111 of the shell 11.

[0124] As shown in the accompanying drawings Figures 12A-13B Preferably, the filter bottle device of the present application further comprises a second seal 52, wherein the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310. More preferably, the second seal 52 causes the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to be flexibly connected, in particular, the shell 11 and the partition 3D are usually made of plastic material, which causes the product to be prone to deformation after injection molding, and the flexible connection reduces the higher production precision requirement for the inner diameter of the top end 1115 of the open end 111 to match the outer diameter of the guide groove 310.

[0125] It is worth noting that the second seal 52 further improves the sealing between the low end 32 of the partition 3D and the open end 111 of the shell 11 through at least two sealing effects. First, the second seal 52 is arranged between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310, which itself strengthens the sealing between the low end 32 of the partition 3D and the open end 111 of the shell 11. Second, when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to between the low end 32 of the partition 3D and the outer wall 1111 of the open end 111 of the shell 11, the water pressure will press and drive the low end 32 of the partition 3D to deform outward, at this time, the low end 32 of the partition 3D moves outward, driving the groove wall 3101 of the guide groove 310 to move outward, driving the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby achieving self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52.Therefore, when the water pressure in the filter bottle 1 is low, the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 can realize the sealing between the open end 111 of the shell 11 and the partition piece 3D; when the water pressure in the filter bottle 1 is high, the open end 111 of the shell 11 of the filter bottle 1 expands outward under the water pressure, and the first seal 51 tightly seals the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3D and the outer wall 1111 of the open end 111 of the shell 11 under the clamping action of the low end 32 of the partition piece 3D; when the water in the filter bottle 1 leaks from the second seal 52 between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 to the gap between the inner peripheral wall 321 of the low end 32 of the partition piece 3D and the outer wall 1111 of the open end 111 of the shell 11 when the water pressure in the filter bottle 1 is high, the water pressure will compress and drive the low end 32 of the partition piece 3D to deform outward, and the water pressure will deform the first seal 51, drive the low end 32 of the partition piece 3D to move outward, and drive the groove wall 3101 of the guide groove 310 to press against the second seal 52, thereby realizing the self-sealing between the inner wall 1112 of the open end 111 of the shell 11 and the groove wall 3101 of the guide groove 310 through the second seal 52. It can be understood that when the user or operator unscrews the filter bottle cap 2D, the torque of the frictional force exerted by the limiting piece 9D and the central seal 93D on the partition piece 3D is less than the torque of the frictional force of the first seal 51 and the second seal 52. Therefore, when the user or operator unscrews the filter bottle cap 2D, the partition piece 3D does not rotate substantially, but only translates relative to the shell 11. As shown in the drawings. Figures 2A-3EAs shown, the filter bottle device of the present application further comprises a retaining bracket 53, wherein the retaining bracket 53 is fixed between the high end 31 of the partition 3D and the filter core 12, wherein the retaining bracket 53 is at least partially arranged opposite to the guide groove 310 to retain the second seal 52 at least partially within the guide groove 310. Preferably, the retaining bracket 53 is arranged below the high end 31 of the partition 3D and the retaining bracket 53 is surrounded by the inner wall 1112 of the opening end 111 of the housing 11. Preferably, the retaining bracket 53 can be fixed to the partition 3D by welding, or can be fixed to the partition 3D by other means such as screwing. More preferably, the retaining bracket 53 is integrally formed with the partition 3D. Preferably, the retaining bracket 53 further has a gap 531, through which the user can use a screwdriver or other simple tools to take out the second seal 52 arranged in the guide groove 310. It can be understood that the first seal 51 is arranged on the outer wall 1111 of the opening end 111 of the housing 11, and the second seal 52 is arranged in the guide groove 310 of the partition 3D, so that the first seal 51 and the second seal 52 are both convenient to install and replace.

[0126] As shown in the accompanying drawings ​As shown, further, the present application provides a filter bottle assembly, which comprises a filter bottle 1, a filter bottle cap 2, a partition 3 and a first seal 51, wherein the filter bottle 1 comprises a housing 11, the partition 3 comprises a high end 31 and a low end 32 extending outwardly and downwardly from the high end 31, the housing 11 comprises an open end 111, a connecting portion 113 and an extension portion 112, wherein the connecting portion 113 extends between the open end 111 and the extension portion 112, the extension portion 112 extends from the connecting portion 113, wherein the housing 11 has a receiving cavity 110, the receiving cavity 110 has a mounting opening 1101 formed at the open end 111 of the housing 11, wherein the filter bottle cap 2 is adapted to be detachably connected to the outer sidewall 1131 of the connecting portion 113 of the housing 11, the high end 31 of the partition 3 is located inside the filter bottle cap 2. Preferably, the high end 31 of the partition 3 is disposed inside the filter bottle cap 2, the low end 32 of the partition 3 is disposed between the inner sidewall 24 of the filter bottle cap 2 and the outer wall 1111 of the open end 111 of the housing 11, the first seal 51 is disposed between the outer wall 1111 of the open end 111 of the housing 11 and the inner circumferential wall 321 of the low end 32 of the partition 3, wherein when the filter bottle cap 2 is connected to the connecting portion 113 of the housing 11 so that the filter bottle cap 2 presses against the partition 3, the filter bottle cap 2 can drive the partition 3 to move relative to the open end 111 of the housing 11 of the filter bottle 1 and achieve sealing between the open end 111 of the housing 11 of the filter bottle 1 and the low end 32 of the partition 3 through the first seal 51.

[0127] Unless specifically indicated, the sealing mentioned in the specification of the present application is water sealing.

[0128] It is worth noting that the first, second and / or third used herein are only for naming and distinguishing different components (or elements) of the present application, and do not have the meaning of order or number.

[0129] It should be understood by those of ordinary skill in the art that the embodiments described above and shown in the drawings are only for illustratively explaining the present application, but not limiting the present application. All equivalent embodiments, modifications and improvements within the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A filter bottle assembly, characterized by, The filter bottle includes: a bottle body; a bottle cap; a partition including a high end and a low end extending outwardly and downwardly from the high end; and a first seal, wherein the bottle body includes an open end, a connecting portion, and an extending portion, wherein the connecting portion extends between the open end and the extending portion, and the extending portion extends from the connecting portion, wherein the bottle body has a receiving cavity having a mounting opening formed at the open end of the bottle body, wherein the bottle cap is adapted to be detachably connected to an outer sidewall of the connecting portion of the bottle body with the high end of the partition located inside the bottle cap and the low end of the partition disposed between an inner sidewall of the bottle cap and an outer wall of the open end of the bottle body, and the first seal is disposed between the outer wall of the open end of the bottle body and an inner peripheral wall of the low end of the partition, wherein the bottle cap is threadedly or rotatably snap-attached to the connecting portion of the bottle body, and when the bottle cap is attached to the connecting portion of the bottle body such that the bottle cap is pressed against the partition, the bottle cap is capable of driving the partition to move relative to the open end of the bottle body.

2. The filter bottle assembly of claim 1, wherein, The bottle cap is detachably connected to the connecting portion of the bottle body by a thread or a rotatable snap.

3. The filter bottle assembly of claim 1, wherein, Further including a metal ring, wherein the metal ring is disposed on an outer peripheral wall of the low end of the partition.

4. The filter bottle assembly of claim 1, wherein, The open end of the bottle body includes a main portion and a sealing portion extending outwardly from the main portion, and the first seal is disposed between the sealing portion of the open end of the bottle body and the inner peripheral wall of the low end of the partition.

5. The filter bottle assembly of claim 4, wherein, The low end is trumpet-shaped along a direction in which the low end extends.

6. The filter bottle assembly of claim 1, wherein, The high end of the partition forms a guide groove, wherein the guide groove is disposed adjacent to the low end of the partition and opposite to the open end of the bottle body, and a top end of the open end of the bottle body is adapted to be placed in the guide groove.

7. The filter bottle assembly of claim 6, wherein, Further including a second seal, wherein the second seal is disposed between an inner wall of the open end of the bottle body and a groove wall of the guide groove.

8. The filter bottle assembly of claim 7, wherein, Further including a retaining holder, wherein the retaining holder is at least partially disposed opposite to the guide groove to retain the second seal at least partially in the guide groove.

9. The filter bottle assembly of claim 8, wherein, The retaining holder is disposed below the high end of the partition, and the retaining holder is surrounded by the inner wall of the open end of the bottle body.

10. The filter bottle assembly of claim 9, wherein, The retaining holder is fixed to the partition.

11. The filter bottle assembly of claim 10, wherein, The retaining holder further has a notch.

12. The filter bottle assembly of any one of claims 1-11, wherein, The bottle cap includes an opening portion and a mounting portion extending from the opening portion, and the partition further includes a through portion, wherein the low end and the through portion are integrally extended from two opposite sides of the high end, respectively, wherein the opening portion forms a through opening, and the through portion forms a through passage, and the through portion penetrates out of the through opening of the opening portion.

13. The filter bottle assembly of claim 12, wherein, The high end and the inner wall of the open end of the shell surround a through cavity; the filter bottle further comprises a first fluid passage and a second fluid passage, the extension of the shell has a lower end, the first fluid passage and the second fluid passage of the filter bottle are respectively arranged at the lower end of the filter bottle, wherein the first fluid passage is formed in the central region of the lower end, and the second fluid passage is formed in the edge region extending outward from the central region of the lower end.

14. The filter bottle assembly of claim 12, wherein, Further comprising a limiting member, the partition further comprises a limiting portion, wherein the limiting portion extends outward from the through portion, and the limiting member is adapted to be arranged between the limiting portion and the open portion of the filter bottle cap.

15. The filter bottle assembly of any one of claims 1-11, wherein, The filter bottle cap comprises an open portion, a mounting portion extending from the open portion, and a through portion extending from the open portion, the high end of the partition forms a through opening, wherein the through portion and the open portion form a through channel extending from the open portion to the through portion, and the through portion penetrates out of the through opening of the high end.

16. The filter bottle assembly of claim 15, wherein, Further comprising a central sealing member, wherein the central sealing member is arranged between the through portion of the filter bottle cap and the through opening of the high end of the partition.

17. The filter bottle assembly of claim 16, wherein, Further comprising a constraint member, wherein the constraint member comprises a fixing portion and a constraint portion, and the constraint portion and the fixing portion of the constraint member are respectively arranged at the high end of the partition and the through portion of the filter bottle cap.

18. The filter bottle assembly of claim 17, wherein, The fixing portion of the constraint member is connected to the through portion, and the constraint portion extends from the fixing portion to the high end of the partition.

19. The filter bottle assembly of claim 18, wherein, The central sealing member is constrained between the high end of the partition and the through portion of the filter bottle cap; the filter bottle further comprises a first fluid passage and a second fluid passage, the extension of the shell has a lower end, the first fluid passage and the second fluid passage of the filter bottle are respectively arranged at the lower end of the filter bottle, wherein the first fluid passage is formed in the central region of the lower end, and the second fluid passage is formed in the edge region extending outward from the central region of the lower end.

20. The filter bottle assembly of any one of claims 1-11, wherein, The filter bottle cap comprises an open portion, a mounting portion extending from the open portion, and a through portion extending from the open portion, the high end of the partition forms a through opening, wherein the through portion and the open portion form a first through channel extending from the open portion to the through portion and a second through channel extending from the open portion to the through portion, and the through portion penetrates out of the through opening of the high end of the partition.

21. The filter bottle assembly of claim 20, wherein, Further comprising a central sealing member, wherein the central sealing member is arranged between the through portion of the filter bottle cap and the through opening of the high end of the partition.

22. The filter bottle assembly of claim 21, wherein, Further comprising a restriction member, wherein the restriction member comprises a fixed portion and a restriction portion, and the restriction portion and the fixed portion of the restriction member are arranged at the high end of the partition member and the lead-through portion of the filter cap, respectively.

23. The filter bottle assembly of claim 22, wherein, The fixed portion of the restriction member is connected to the lead-through portion, and the restriction portion extends from the fixed portion to the high end of the partition member, and the center seal is restricted between the high end of the partition member and the lead-through portion of the filter cap.

24. The filter bottle assembly of claim 22, wherein, The restriction member is provided with a communication passage, wherein the communication passage is formed in the fixed portion, and the communication passage is in communication with the first lead-through passage.

25. The filter bottle assembly of claim 23, wherein, The restriction member is provided with a communication passage, wherein the communication passage is formed in the fixed portion, and the first lead-through passage and the second lead-through passage both pass through the communication passage.

26. The filter bottle assembly of any one of claims 1-11, wherein, The filter cap comprises an opening portion, a mounting portion extending from the opening portion, a lead-through portion extending from the opening portion, a first passage forming portion, and a second passage forming portion, and the high end of the partition member forms a through opening, wherein the lead-through portion passes out of the through opening of the high end, the first passage forming portion is surrounded by the opening portion, the second passage forming portion is surrounded by the first passage forming portion, the first passage forming portion and the opening portion form a first passage therebetween, the first passage forming portion and the second passage forming portion form a second passage therebetween, and the second passage forming portion forms a third passage, wherein the first passage, the second passage, and the third passage are separated from each other by the first passage forming portion and the second passage forming portion.

27. The filter bottle assembly of claim 26, wherein, Further comprising a center seal, wherein the center seal is arranged between the lead-through portion of the filter cap and the through opening of the high end of the partition member.

28. The bottle filtration assembly of claim 27, wherein, Further comprising a restriction member, wherein the restriction member comprises a fixed portion and a restriction portion, and the restriction portion and the fixed portion of the restriction member are arranged at the high end of the partition member and the lead-through portion of the filter cap, respectively.

29. The bottle filtration assembly of claim 28, wherein, The fixed portion of the restriction member is connected to the lead-through portion, and the restriction portion extends from the fixed portion to the high end of the partition member, and the center seal is restricted between the high end of the partition member and the lead-through portion of the filter cap.

30. The bottle filtration assembly of claim 28, wherein, The restriction member is provided with a communication passage, wherein the communication passage is formed in the fixed portion, and the communication passage is in communication with the first passage.

31. The bottle filtration assembly of claim 29, wherein, The restriction member is provided with a communication passage, wherein the communication passage is formed in the fixed portion, and the first passage, the second passage, and the third passage all pass through the communication passage.

32. The filter bottle assembly of any one of claims 1-11, wherein, Further comprising a limiting member, the filter bottle cap comprises an opening portion and a mounting portion extending from the opening portion, the partition further comprises a positioning portion and a limiting portion, wherein the low end and the positioning portion respectively integrally extend from two opposite sides of the high end, the limiting portion extends outward from the positioning portion, wherein the opening portion forms a through opening, and the positioning portion penetrates out of the through opening of the opening portion, wherein the limiting member is adapted to be arranged between the limiting portion and the opening portion of the filter bottle cap.

33. The bottle filtration assembly of claim 32, wherein, The water inlet and the water outlet of the filter bottle assembly are arranged at an end of the filter bottle assembly away from the filter bottle cap, and the filter bottle cap does not have a water passage opening.

34. The filter bottle assembly of any one of claims 1-11, wherein, Further comprising a limiting member, the filter bottle cap comprises a limiting portion and a mounting portion extending from the limiting portion, the partition further has a positioning opening, wherein the low end integrally extends from the high end, wherein the limiting portion forms a limiting chamber, and one end of the limiting member is adapted to be arranged at the high end of the partition, the other end of the limiting member penetrates out of the positioning opening and is adapted to be fixedly arranged in the limiting chamber.

35. The bottle filtration assembly of claim 34, wherein, The limiting member is a positioning screw, which forms a positioning column matched with the positioning opening, a threaded portion fixed in the limiting chamber, and a central sealing member between the positioning opening and the positioning column.

36. The bottle filtration assembly of claim 35, wherein, The water inlet and the water outlet of the filter bottle assembly are arranged at an end of the filter bottle assembly away from the filter bottle cap, and the filter bottle cap does not have a water passage opening.

37. A filter bottle apparatus, comprising: Comprise: a filter core; and The filter bottle assembly of claims 1-36, wherein the filter core is arranged in the accommodating cavity, and the high end of the partition is arranged between the filter bottle cap and the filter core.

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