Filter bottle device and filter bottle cap assembly

Abstract

The utility model provides a filter bottle device and a filter bottle cap assembly, which comprise a filter bottle, a filter bottle cap, a packing piece detachably connected to the filter bottle, a first sealing piece, and a second sealing piece arranged between the filter bottle and a first sealing part of the packing piece, the first sealing piece is arranged between the filter bottle cap and the second sealing part of the packing piece, and the size of the first sealing piece is larger than that of the second sealing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a filter bottle device and a filter bottle cover assembly. Background Art

[0002] In the existing filter bottle device, the seal is directly arranged between the filter bottle cover and the filter bottle. In order to ensure the effectiveness of the seal, the filter bottle cover and the filter bottle need to be tightly connected to each other, which makes the connection and disassembly of the two very difficult, especially when the two are connected to each other through a threaded structure, they need to be tightened vigorously, and when disassembling, they also need a large force to unscrew.

[0003] The existing sealing arrangement of the filter bottle device includes two types: pressure sealing and side sealing. Figure 1 As shown, the seal 31P is set in a compression seal mode, and the seal 32P is set in a side seal mode. It can be understood that if the compression seal mode is used for sealing, the filter bottle cover 2P and the filter bottle 1P need to be tightened as much as possible to flatten the seal 31P, so as to achieve reliable sealing, which will inevitably make the filter bottle cover 2P and the filter bottle 1P difficult to unscrew when disassembling. Moreover, since the diameter of the circular ring surrounded by the seal 31P is not less than the inner diameter of the filter bottle 1P, that is, the size of the seal 31P is relatively large, when the filter bottle cover 2P and the filter bottle 1P rotate relative to each other, the friction caused by the seal 31P cannot be ignored, which will further hinder the tightening process and unscrewing process of the filter bottle cover 2P and the filter bottle 1P. Correspondingly, if sealing is performed by side sealing, although the tightening degree of the filter bottle cover 2P and the filter bottle 1P can be slightly reduced, the seal 32P also has a larger size, which will also cause greater friction, thereby causing greater obstacles to the tightening and unscrewing processes of the filter bottle cover 2P and the filter bottle 1P.

[0004] In addition, since the filter bottle 1P and the filter bottle cover 2P are usually made of plastic material, and the filter bottle cover 2P is not a regular cylindrical shape, it is impossible to ensure a high roundness. Since the bottle wall of the filter bottle 1P lacks lateral (radial) support from the inside of the filter bottle 1P, the filter bottle 1P and / or the filter bottle cover 2P are easily deformed during the tightening process. This forces the manufacturer of the filter bottle device to select a seal with a large compression amount when selecting the seal, in order to make up for the sealing problem caused by the deformation of the plastic part. However, when replacing the filter element of the filter bottle device, the seal also needs to be replaced together, because the large compression amount makes it difficult for the seal to rebound. If the seal continues to be used, the effectiveness and reliability of the seal cannot be guaranteed.

[0005] Moreover, during the tightening process of the filter bottle cover 2P and the filter bottle 1P, they move relative to each other (for example, one moves clockwise and the other moves counterclockwise). Neither the seal 31P nor the seal 32P can rotate with the filter bottle cover 2P or the filter bottle 1P, which causes the seal to be easily twisted after the filter bottle cover 2P and the filter bottle 1P are tightened, resulting in seal failure and further water leakage. Summary of the invention

[0006] The main advantage of the present invention is that it provides a filter bottle device, which includes a sealing member that can rotate relative to the filter bottle cover, and is sealed with the filter bottle through the sealing member, so as to replace the traditional sealing method of directly setting a sealing member between the filter bottle cover and the filter bottle, and in the process of screwing and unscrewing the filter bottle cover and the filter bottle, the sealing member basically does not rotate relative to the filter bottle, which can greatly reduce the difficulty of screwing and unscrewing the filter bottle cover and the filter bottle. In other words, the present invention creatively proposes to separate the "fixing" and "sealing" between the filter bottle cover and the filter bottle as much as possible, and use the sealing member to replace the filter bottle cover to bear most of the "sealing" responsibility, so that the filter bottle cover and the filter bottle are easier to screw and unscrew.

[0007] Another advantage of the present invention is that it provides a filter bottle device, wherein the sealing member can provide transverse (radial) support to the bottle wall of the filter bottle from the inside of the filter bottle, the structural stability is stronger, and the sealing member is easier to form and maintain a higher roundness than the filter bottle cover, so that a seal with a smaller compression amount than the traditional sealing method can be selected between the sealing member and the filter bottle, thereby enabling the sealing member to be used multiple times without having to replace the seal every time the filter element is replaced. Moreover, the seal with a smaller compression amount also makes the relative translation between the sealing member and the filter bottle less obstructed, which is conducive to further reducing the difficulty of screwing and unscrewing the filter bottle cover and the filter bottle.

[0008] Another advantage of the present invention is that it provides a filter bottle device, wherein during the process of screwing together and unscrewing the filter bottle cover and the filter bottle, since the sealing member may basically not rotate relative to the filter bottle, the seal between the sealing member and the filter bottle is less likely to be twisted, which can reduce the risk of sealing failure and water leakage.

[0009] Accordingly, according to an embodiment of the present invention, a filter bottle device having at least one of the aforementioned advantages includes:

[0010] Filter bottle;

[0011] A filter bottle cover, detachably connected to the filter bottle;

[0012] A sealing member, configured to be rotatable relative to the filter bottle cover;

[0013] A first sealing member disposed between the filter bottle and the first sealing portion of the packing member; and

[0014] The second seal is arranged between the filter bottle cover and the second seal portion of the sealing member, wherein the size of the first seal is larger than the size of the second seal.

[0015] In one embodiment of the present invention, the filter bottle cover includes an extended wall, the sealing member is provided with a through hole formed in the second sealing portion, and the restraining member includes a fixing portion and a restraining portion extending from the fixing portion, wherein the extended wall is inserted into the through hole of the sealing member, the second sealing member is arranged between the second sealing portion and the extended wall, the fixing portion is connected to the extended wall, and the restraining portion is used to restrain the sealing member, wherein the extended wall serves as a rotation axis for relative rotation between the filter bottle cover and the sealing member.

[0016] In one embodiment of the present invention, the filter bottle cover further comprises a flow-through portion having a fluid channel, wherein the extended wall is constructed as a part of an outer peripheral wall of the flow-through portion.

[0017] In one embodiment of the present invention, the second sealing portion of the sealing member is constrained between the filter bottle cover and the constraining portion of the constraining member.

[0018] In one embodiment of the present invention, the fixing portion of the restraining member is disposed on the extension wall.

[0019] In one embodiment of the utility model, the fluid channel includes a first fluid channel and a second fluid channel, wherein the first fluid channel is formed between the outer peripheral wall of the circulation portion and the inner peripheral wall of the circulation portion, and the second fluid channel is formed on the inner side of the inner peripheral wall, wherein the restraint is provided with a connecting channel, and the connecting channel is formed in the fixed portion, wherein the connecting channel is connected to the first fluid channel.

[0020] In one embodiment of the utility model, the fluid channel includes a first fluid channel, a second fluid channel and a third fluid channel, wherein the first fluid channel is formed between the outer peripheral wall of the circulation portion and the first inner peripheral wall of the circulation portion, the second fluid channel is formed between the first inner peripheral wall and the second inner peripheral wall of the circulation portion, and the third fluid channel is formed on the inner side of the second inner peripheral wall, wherein the restraint is provided with a connecting channel, and the connecting channel is formed in the fixed portion, wherein the connecting channel is connected to the first fluid channel.

[0021] In one embodiment of the present invention, the sealing member is configured to radially support the bottle wall of the filter bottle from the inside of the filter bottle.

[0022] According to another aspect of the present invention, the present invention provides a filter bottle cover assembly, comprising:

[0023] A filter bottle cap, used for being detachably connected to the filter bottle;

[0024] A sealing member configured to be rotatable relative to the filter bottle cover; and

[0025] A restraining member connected to the filter bottle cover and used to restrain the sealing member to prevent the sealing member from being separated from the filter bottle cover;

[0026] The sealing member includes a first sealing part and a second sealing part, wherein a first sealing part is suitable for being arranged between the first sealing part and the filter bottle, and a second sealing part is arranged between the second sealing part and the filter bottle cover, wherein the size of the first sealing part is larger than the size of the second sealing part.

[0027] The above and other advantages of the present invention will be fully reflected in combination with the following description and the accompanying drawings.

[0028] The above and other advantages and features of the present invention are fully reflected in the following detailed description of the present invention and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of an existing filter bottle device.

[0030] Figure 2 It is a stereoscopic diagram of a filter bottle device according to an embodiment of the utility model.

[0031] Figure 3 It is a cross-sectional view of a filter bottle device according to an embodiment of the utility model.

[0032] Figure 4 It is a stereoscopic view of the sealing member of the filter bottle device according to an embodiment of the utility model.

[0033] Figure 5 It is a cross-sectional view of the sealing member of the filter bottle device according to an embodiment of the utility model.

[0034] Figure 6 It is a stereoscopic view of the restraining member of the filter bottle device according to an embodiment of the utility model.

[0035] Figure 7 It is a cross-sectional view of another filter bottle device according to an embodiment of the utility model.

[0036] Figure 8 is a cross-sectional view of a locking unit according to an embodiment of the utility model.

[0037] Fig. 9 It is a cross-sectional view of an optional implementation of another filter bottle device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0038] The following description is provided to enable those skilled in the art to implement the present invention. Other obvious replacements, modifications and variations may occur to those skilled in the art. Therefore, the scope of protection of the present invention should not be limited to the exemplary embodiments described herein.

[0039] Those skilled in the art should understand that, unless otherwise specified herein, the terms "one" and "an" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple.

[0040] Those skilled in the art should understand that, unless otherwise specified herein, the directions or positions referred to by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positions shown in the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the devices or elements involved must have a specific direction or position. Therefore, the above terms should not be understood as limiting the present invention.

[0041] Refer to the attached drawings of this utility model specification Figures 2 to 6 As shown, a filter bottle device according to an embodiment of the utility model is explained. The filter bottle device includes a filter bottle 1, a filter bottle cover 2, a sealing member 3, a first sealing member 51 and a second sealing member 52, wherein the filter bottle cover 2 is detachably connected to the filter bottle 1, the sealing member 3 is configured to be rotatable relative to the filter bottle cover 2, and the filter bottle device further includes a restraining member 4, the restraining member 4 is connected to the filter bottle cover 2, and is used to restrain the sealing member 3 to prevent the sealing member 3 from detaching from the filter bottle cover 2, the first sealing member 51 is arranged between the filter bottle 1 and the first sealing portion 31 of the sealing member 3, and the second sealing member 52 is arranged between the filter bottle cover 2 and the second sealing portion 32 of the sealing member 3, wherein the size of the first sealing member 51 is greater than the size of the second sealing member 52. It is worth mentioning that "the size of the first sealing member 51 is greater than the size of the second sealing member 52" means that the circumference (or radius, diameter) of the circular ring surrounded by the first sealing member 51 is greater than the circumference (or radius, diameter) of the circular ring surrounded by the second sealing member 52.

[0042] In order to more prominently reflect the advantages of the utility model, the utility model takes the filter bottle cover 2 and the filter bottle 1 as an example of a rotatable detachable connection method, such as the filter bottle cover 2 and the filter bottle 1 are rotatably detachably connected through a threaded structure, or are rotatably detachably connected through a rotating buckle structure. It can be understood that the filter bottle cover 2 and the filter bottle 1 can also be detachably connected by a clamp. Specifically, during the screwing and unscrewing process of the filter bottle cover 2 and the filter bottle 1, the filter bottle cover 2 rotates relative to the filter bottle 1. Since the size of the first seal 51 is larger than the size of the second seal 52, the first seal 51 has a greater resistance to rotation than the second seal 52, so that the filter bottle cover 2 is basically unable to drive the packing member 3 to rotate, so that the packing member 3 basically does not rotate relative to the filter bottle 1, and only performs translational motion relative to the filter bottle 1, which basically eliminates the resistance of the large-sized seal to the relative rotation of the filter bottle cover 2 and the filter bottle 1, and can greatly reduce the difficulty of screwing and unscrewing the filter bottle cover 2 and the filter bottle 1. When the two are screwed together, there is no need to tighten them vigorously, and they only need to be rotated to a preset position to ensure that the packing member 3 is inserted into the filter bottle 1 to a certain depth, and the relative rotation of the two will not be hindered by the large-sized seal, and it is easy to rotate. Correspondingly, when the two are unscrewed, it is also relatively easy. In other words, the present invention creatively proposes to separate the "fixing" and "sealing" between the filter bottle cover 2 and the filter bottle 1 as much as possible, and use the sealing member 3 to replace the filter bottle cover 2 to bear most of the "sealing" responsibility, so that the filter bottle cover 2 and the filter bottle 1 are easier to screw on and off. In addition, because the sealing member 3 can basically not rotate relative to the filter bottle 1, the first sealing member 51 is less likely to be twisted, which can reduce the risk of sealing failure and water leakage.

[0043] It can be understood that the sealing member 3 is configured to provide lateral (radial) support to the bottle wall of the filter bottle 1 from the inside of the filter bottle 1, such as by transmitting the force through the first sealing member 51, which not only makes the structural stability stronger, but also helps to ensure the effectiveness of the seal. Moreover, the sealing member 3 is easier to form and maintain a higher roundness than the filter bottle cover 2, so that a seal with a smaller compression amount than the traditional sealing method can be selected between the sealing member 3 and the filter bottle 1, thereby allowing the first sealing member 51 to be used multiple times without having to replace the first sealing member 51 every time the filter element is replaced. Moreover, the first sealing member 51 with a smaller compression amount also makes the sealing member 3 and the filter bottle 1 less obstructed when relative translation occurs, which helps to further reduce the difficulty of screwing and unscrewing the filter bottle cover 2 and the filter bottle 1.

[0044] like Figure 3As shown, the filter bottle cover 2 includes a circulation portion 21, and the circulation portion 21 has a fluid channel 210 for the inflow or outflow of fluid. The fluid channel 210 includes a first fluid channel 2101 and a second fluid channel 2102, wherein one of the first fluid channel 2101 and the second fluid channel 2102 is used for the inflow of raw water, and the other is used for the outflow of purified water. When the first fluid channel 2101 is used as the inflow channel of raw water, the second fluid channel 2102 is used as the outflow channel of purified water; when the first fluid channel 2101 is used as the outflow channel of purified water, the second fluid channel 2102 is used as the inflow channel of raw water. The first fluid channel 2101 is formed between the outer peripheral wall 211 of the circulation portion 21 and the inner peripheral wall 212 of the circulation portion 21, and the second fluid channel 2102 is formed on the inner side of the inner peripheral wall 212. It can be understood that the first fluid channel 2101 and the second fluid channel 2102 can be quick-connect interfaces, or can form threaded openings as required. In addition, the first fluid channel 2101 and the second fluid channel 2102 can also be configured as follows: Figure 1 The raw water inlet opening and the purified water outlet opening are shown to be arranged horizontally.

[0045] like Figures 3 to 5 As shown, specifically, the filter bottle cover 2 also includes an extension wall 22, and the extension wall 22 is inserted into the through hole 30 of the sealing member 3, wherein the through hole 30 is formed in the second sealing portion 32 of the sealing member 3, and the second sealing member 52 is arranged between the second sealing portion 32 of the sealing member 3 and the extension wall 22. The first fluid channel 2101 and the second fluid channel 2102 are both arranged on the inner side of the through hole 30 of the sealing member 3. When the filter bottle cover 2 and the sealing member 3 rotate relative to each other, the extension wall 22 can be regarded as a rotation axis. It is worth mentioning that the extension direction of the central axis of the rotation axis is the axial direction, and the above-mentioned "transverse (radial)" refers to the direction perpendicular to the axial direction.

[0046] like Figures 3 to 6 As shown, specifically, the restraining member 4 includes a fixing portion 41 and a restraining portion 42 , wherein the restraining portion 42 extends from the fixing portion 41 , the fixing portion 41 is connected to the extension wall 22 , and the restraining portion 42 is used to restrain the sealing member 3 .

[0047] like Figures 3 to 6As shown, preferably, the peripheral wall 211 of the circulation part 21 is further extended along the axial direction to form the extension wall 22. In other words, the extension wall 22 is constructed as a part of the peripheral wall 211. The second sealing part 32 of the sealing member 3 is constrained between the filter bottle cover 2 and the constraint part 42 of the constraint member 4. The constraint member 4 is provided with a communication channel 40, wherein the communication channel 40 is formed in the fixing part 41, wherein the fixing part 41 is connected to the extension wall 22, so that the communication channel 40 is connected to the first fluid channel 2101. It can be understood that when the fixing part 41 is set on the extension wall 22, there is no need to seal between the fixing part 41 and the extension wall 22, which is convenient for the connection between the two. Preferably, the fixing part 41 of the constraint member 4 is fixed to the extension wall 22 by screws. It can be understood that the connection structure between the fixing part 41 and the extension wall 22 includes but is not limited to screw fixing, threaded connection, snap connection or interference connection, etc., and the two can even be connected by additional connecting parts.

[0048] Furthermore, if Figure 3 As shown, the first fluid channel 2101 is used as the inflow channel of raw water, and the second fluid channel 2102 is used as the outflow channel of purified water. The filter bottle device also includes a filter element. In some embodiments, it may further include a filter element adapter 6 disposed between the circulation portion 21 and the filter element, wherein the purified water outlet of the filter element or the purified water outlet 61 of the filter element adapter 6 is sealedly connected to the inner peripheral wall 212 of the circulation portion 21. Raw water flows in from the first fluid channel 2101, flows through the connecting channel 40 of the constraint 4, further flows along the constraint 4 and the bottom of the sealing member 3, and is sealed by the first sealing member 51 and the second sealing member 52, and then flows into the filter element. The purified water purified by the filter element is discharged from the purified water outlet or the purified water outlet 61 of the filter element adapter 6, and finally flows out through the second fluid channel 2102.

[0049] like Figure 2 and Figure 8As shown, the filter bottle device further includes at least one locking unit 7, wherein the locking unit 7 includes a first locking member 71, a second locking member 72 and a locking plug-in 73, wherein the first locking member 71 is arranged on the outer wall of the filter bottle 1, and the second locking member 72 is arranged on the outer wall of the filter bottle cover 2, and when the first locking member 71 and the second locking member 72 are aligned, a positioning slot 710 can be formed, wherein the locking plug-in 73 is configured to be inserted into the positioning slot 710 to keep the first locking member 71 and the second locking member 72 in a locked position. It can be understood that the filter bottle device is configured so that when the filter bottle cover 2 is rotated to the point where the first locking member 71 and the second locking member 72 are connected and aligned, the filter bottle cover 2 is screwed into the preset position of the filter bottle 1 to ensure that the sealing member 3 is inserted into the filter bottle 1 to a certain depth. At this time, the locking plug-in 73 is inserted into the positioning slot 710 to keep the first locking member 71 and the second locking member 72 in the locked position, and keep the filter bottle cover 2 screwed into the preset position. It can be understood that when the filter bottle cover 2 is screwed into the preset position of the filter bottle 1, since the locking unit 7 has an anti-loosening effect, the threads of the filter bottle cover 2 and the filter bottle 1 do not need to be tightened so that they can be easily unscrewed in the future, because excessive tightening will make it difficult to unscrew, especially when the filter bottle cover 2 and the filter bottle 1 are made of plastic material, they will be continuously subjected to the water pressure during the operation of the filter bottle device, and the filter bottle cover 2 and the filter bottle 1 will be deformed and meshed together, making it difficult to unscrew easily.

[0050] In summary, the technical solution based on the core concept of the utility model has been explained, which is not only applicable to Figure 3 The dual-port filter bottle device shown in the figure, that is, the circulation portion 21 only includes two types of ports, the first fluid channel 2101 and the second fluid channel 2102, which is also suitable for Figure 7 The three-port filter bottle device shown, that is, the fluid channel 210 of the circulation part 21 also includes a third fluid channel 2103 for sewage discharge. In other words, the core concept of the utility model is not limited by the type and number of the fluid channel 210 of the circulation part 21.

[0051] like Figure 7As shown, specifically, the filter bottle cover 2a of the three-port filter bottle device includes a circulation part 21a, the circulation part 21a has a fluid channel 210a, and the fluid channel 210a includes a first fluid channel 2101, a second fluid channel 2102 and a third fluid channel 2103, wherein the first fluid channel 2101 is formed between the outer peripheral wall 211 of the circulation part 21a and the first inner peripheral wall 212a of the circulation part 21a, the second fluid channel 2102 is formed between the first inner peripheral wall 212a and the second inner peripheral wall 212b of the circulation part 21a, and the third fluid channel 2103 is formed on the inner side of the second inner peripheral wall 212b. Take the first fluid channel 2101 as the inflow channel of raw water, the second fluid channel 2102 as the outflow channel of purified water, and the third fluid channel 2103 as the outflow channel of sewage as an example. The filter bottle device also includes a filter element and a drain pipe. For example, the drain pipe is inserted into the outflow channel of the purified water of the filter element, wherein the purified water outlet of the filter element is sealedly connected to the first inner peripheral wall 212a of the circulation part 21a, and the drain pipe is sealedly connected to the second inner peripheral wall 212b of the circulation part 21a. Raw water flows in from the first fluid channel 2101, flows through the connecting channel 40 of the constraint 4, flows further along the constraint 4 and the bottom of the sealing member 3, and is sealed by the first sealing member 51 and the second sealing member 52, and then flows into the filter element. The purified water purified by the filter element is discharged from the purified water outlet, and finally flows out through the second fluid channel 2102. The sewage flows into the third fluid channel 2103 through the drain pipe and is discharged. The first fluid channel 2101, the second fluid channel 2102 and the third fluid channel 2103 are all arranged on the inner side of the through hole 30 of the sealing member 3. It can be understood that the filter element can be a reverse osmosis membrane filter element or a three-port ultrafiltration membrane filter element; the first fluid channel 2101, the second fluid channel 2102 and the third fluid channel 2103 can be quick-connect interfaces, or threaded openings can be formed as needed.

[0052] like Fig. 9The filter bottle device of the three-port is shown as an optional implementation, which includes a filter bottle 1b, a filter bottle cover 2b, the sealing member 3, the restraining member 4, the first sealing member 51 and the second sealing member 52, the filter bottle cover 2b includes a flow portion 21b, the flow portion 21b has a fluid channel 210b, the fluid channel 210b includes a first fluid channel 2101b, the filter bottle 1b includes a second fluid channel 2102b and a third fluid channel 2103b, wherein the outer peripheral wall 211b of the flow portion 21b forms the first fluid channel 2102b and the third fluid channel 2103b. 101b, the filter bottle 1b has an upper end 11b and a lower end 12b extending downward from the upper end 11b of the filter bottle, the second fluid channel 2102b and the third fluid channel 2103b of the filter bottle 1b are respectively arranged at the lower end 12b of the filter bottle 1b, wherein the second fluid channel 2102b is formed in the central area 121b of the lower end 12b, and the third fluid channel 2103b is formed in the edge area 122b extending outward from the central area 121b of the lower end 12b. Take the first fluid channel 2101b as the inflow channel of raw water, the second fluid channel 2102b as the outflow channel of purified water, and the third fluid channel 2103b as the outflow channel of sewage as an example. The filter bottle device also includes a filter element. For example, the purified water outlet of the filter element is sealedly connected to the central area 121b of the lower end 12b. The raw water flows in from the first fluid channel 2101b, flows through the connecting channel 40 of the constraint 4, flows further along the constraint 4 and the bottom of the sealing member 3, and is sealed by the first sealing member 51 and the second sealing member 52. Then, it flows into the filter element. The purified water purified by the filter element is discharged from the purified water outlet, and finally flows out through the second fluid channel 2102b, and the sewage is discharged through the third fluid channel 2103b. The first fluid channel 2101b is arranged on the inner side of the through hole 30 of the sealing member 3. It can be understood that the filter element can be a reverse osmosis membrane filter element or a three-port ultrafiltration membrane filter element; the first fluid channel 2101b, the second fluid channel 2102b and the third fluid channel 2103b can form a threaded opening, or a quick-connect interface as required.

[0053] According to another aspect of the utility model, the utility model further provides a filter bottle cover assembly, which includes a filter bottle cover 2 (or a filter bottle cover 2a, a filter bottle cover 2b), a sealing member 3 and a restraining member 4, wherein the filter bottle cover 2 (or a filter bottle cover 2a, a filter bottle cover 2b) is used to be detachably connected to the filter bottle 1 (or filter bottle 1b, the sealing member 3 is configured to be able to rotate relative to the filter bottle cover 2, and the restraining member 4 is connected to the filter bottle cover 2, and is used to restrain the sealing member 3 to prevent the sealing member 3 from detaching from the filter bottle cover 2, wherein the sealing member 3 includes a first sealing portion 31 and a second sealing portion 32, wherein a first sealing member 51 is suitable for being arranged between the first sealing portion 31 and the filter bottle 1, and a second sealing member 52 is arranged between the second sealing portion 32 and the filter bottle cover 2, wherein the size of the first sealing member 51 is larger than the size of the second sealing member 52.

[0054] Those skilled in the art should understand that the above description and the embodiments shown in the drawings are only for illustrative explanation of the present invention, rather than for limiting the present invention. All equivalent implementations, modifications and improvements within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter bottle device, characterized in that: include: Filter bottle; A filter bottle cover, detachably connected to the filter bottle; A sealing member, configured to be rotatable relative to the filter bottle cover; A first sealing member is disposed between the filter bottle and the first sealing portion of the sealing member; and The second seal is arranged between the filter bottle cover and the second seal portion of the sealing member, wherein the size of the first seal is larger than the size of the second seal.

2. The filter bottle device according to claim 1, characterized in that: It further includes a restraining member, which is connected to the filter bottle cover and is used to restrain the sealing member to prevent the sealing member from detaching from the filter bottle cover.

3. The filter bottle device according to claim 2, characterized in that: The filter bottle cover includes an extended wall, the sealing member is provided with a through hole formed in the second sealing portion, the restraining member includes a fixing portion and a restraining portion extending from the fixing portion, wherein the extended wall is inserted into the through hole of the sealing member, the second sealing member is arranged between the second sealing portion and the extended wall, the fixing portion is connected to the extended wall, and the restraining portion is used to restrain the sealing member, wherein the extended wall serves as a rotation axis for relative rotation between the filter bottle cover and the sealing member.

4. The filter bottle device according to claim 3, characterized in that: The filter bottle cap also includes a flow-through portion having a fluid channel.

5. The filter bottle device according to claim 4, characterized in that: The second sealing portion of the packing is constrained between the filter bottle cover and the constraining portion of the constraining member.

6. The filter bottle device according to claim 5, characterized in that: The fixing portion of the restraining member is fixed to the extension wall by means of screws.

7. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel and a second fluid channel, wherein the first fluid channel is formed between the outer peripheral wall of the circulation portion and the inner peripheral wall of the circulation portion, and the second fluid channel is formed on the inner side of the inner peripheral wall, wherein the restraint is provided with a connecting channel, and the connecting channel is formed in the fixing portion, wherein the connecting channel is connected to the first fluid channel.

8. The filter bottle device according to claim 7, characterized in that: It further comprises a filter element adapter, wherein the purified water outlet of the filter element adapter is sealingly connected to the inner peripheral wall of the circulation portion.

9. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel, a second fluid channel and a third fluid channel, wherein the first fluid channel is formed between the outer peripheral wall of the circulation portion and the first inner peripheral wall of the circulation portion, the second fluid channel is formed between the first inner peripheral wall and the second inner peripheral wall of the circulation portion, and the third fluid channel is formed on the inner side of the second inner peripheral wall, wherein the restraint is provided with a connecting channel, and the connecting channel is formed in the fixing portion, wherein the connecting channel is connected to the first fluid channel.

10. The filter bottle device according to any one of claims 2 to 6, characterized in that: The packing is configured to radially support the bottle wall of the filter bottle from the inside of the filter bottle.

11. The filter bottle device according to claim 1, characterized in that: The filter bottle cover also includes a circulation portion having a fluid channel, the fluid channel includes a first fluid channel and a second fluid channel, wherein the first fluid channel is formed between an outer peripheral wall of the circulation portion and an inner peripheral wall of the circulation portion, and the second fluid channel is formed on the inner side of the inner peripheral wall, and the sealing member is provided with a through hole formed in the second sealing portion, and the first fluid channel and the second fluid channel are both arranged on the inner side of the through hole of the sealing member.

12. The filter bottle device according to claim 1, characterized in that: The filter bottle cover also includes a circulation portion having fluid channels, and the fluid channels include a first fluid channel, a second fluid channel and a third fluid channel, wherein the first fluid channel is formed between an outer peripheral wall of the circulation portion and a first inner peripheral wall of the circulation portion, the second fluid channel is formed between the first inner peripheral wall and a second inner peripheral wall of the circulation portion, and the third fluid channel is formed on the inner side of the second inner peripheral wall, and the sealing member is provided with a through hole formed in the second sealing portion, and the first fluid channel, the second fluid channel and the third fluid channel are all arranged on the inner side of the through hole of the sealing member.

13. The filter bottle device according to claim 1, 2 or 8, characterized in that: It further includes a first locking member, a second locking member and a locking plug-in, wherein the first locking member is arranged on the outer wall of the filter bottle, the second locking member is arranged on the outer wall of the filter bottle cover, and when the first locking member and the second locking member are aligned, a positioning slot can be formed, wherein the locking plug-in is arranged to be inserted into the positioning slot.

14. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel, and the filter bottle includes a second fluid channel and a third fluid channel, wherein the outer peripheral wall of the flow portion forms the first fluid channel, the filter bottle has an upper end and a lower end extending downward from the upper end of the filter bottle, and the second fluid channel and the third fluid channel of the filter bottle are respectively arranged at the lower end of the filter bottle.

15. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel and a second fluid channel, and the first fluid channel and the second fluid channel are both arranged inside the through hole of the packing.

16. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel, a second fluid channel and a third fluid channel, and the first fluid channel, the second fluid channel and the third fluid channel are all arranged inside the through hole of the packing.

17. The filter bottle device according to any one of claims 4 to 6, characterized in that: The fluid channel includes a first fluid channel, and the filter bottle includes a second fluid channel and a third fluid channel. The first fluid channel is arranged on the inner side of the through hole of the sealing member. The filter bottle has an upper end and a lower end extending downward from the upper end of the filter bottle. The second fluid channel and the third fluid channel of the filter bottle are respectively arranged at the lower end of the filter bottle.

18. A filter bottle cap assembly, characterized in that: include: A filter bottle cap, used for being detachably connected to the filter bottle; A sealing member, configured to be rotatable relative to the filter bottle cover; and A restraining member connected to the filter bottle cover and used to restrain the sealing member to prevent the sealing member from being separated from the filter bottle cover; The sealing member includes a first sealing portion and a second sealing portion, wherein the first sealing portion is suitable for setting a first sealing member, and a second sealing member is provided between the second sealing portion and the filter bottle cover, wherein the size of the first sealing member is larger than the size of the second sealing member.

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