Filter bottle assembly and water purifier

Abstract

The utility model discloses a filter bottle component, including filter bottle cap and filter bottle, wherein the filter bottle is suitable for being detachably screwed with the filter bottle cap, the filter bottle and the filter bottle cap are provided with at least one limit mechanism, the limit mechanism includes elastic limit piece and limit bulge, the limit bulge is provided with the elastic limit piece, the limit bulge is provided with the elastic limit piece, and the limit bulge is provided with the elastic limit piece. One of the elastic limiting part and the limiting bulge is arranged on the filter bottle, the other one of the elastic limiting part and the limiting bulge is arranged on the filter bottle cover, and when the filter bottle and the filter bottle cover are mutually screwed, the elastic limiting part and the limiting bulge are mutually matched so as to limit the filter bottle in a set acting force range. The relative rotation of the filter bottle and the filter bottle cap, which enables the limiting bulge to be separated from the elastic limiting piece, is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment device technical field especially, relate to a filter bottle subassembly and water purifier. BACKGROUND

[0002] Water purifier is also called water purifier, can according to the requirement of user, to raw water (for example, tap water) purification treatment, to make it can satisfy people's needs. The water quality of tap water is also influenced by the external environment and water supply pipeline. For example, the sand in the tap water source is too much, pipe network aging, tap water pipe quality is poor, water supply pipe network lacks cleaning for a long time, etc. All of these can affect the water quality of tap water. Therefore, under the influence of many factors, the quality of tap water in many countries is poor and not suitable for direct drinking. Water purifier can effectively remove impurities such as silt, colloid, rust, bacteria and even heavy metal ions in raw water through the filtering effect of its purification device, so as to improve and improve the quality of domestic water, which is increasingly favored by consumers.

[0003] The filter core for treating raw water in water purifier is placed in the filter bottle of water purifier. When raw water flows through the filter core, it is purified, so as to obtain purified water. Because impurities accumulate at the filter core, the filter core needs to be cleaned or replaced regularly to ensure the water purification effect of the water purifier. At present, the filter bottle cover and the filter bottle of the water purifier are usually assembled and disassembled through the matching thread structure or rotating buckle structure, and in order to ensure the sealing between the filter bottle cover and the filter bottle, a sealing element is arranged between the filter bottle cover and the filter bottle. When the filter bottle and the filter bottle cover are screwed together, the sealing element is pressed between the filter bottle and the filter bottle cover to form a seal between them. When the user needs to replace the filter core, the filter bottle or the filter bottle cover can be rotated alone, or the filter bottle and the filter bottle cover can be rotated simultaneously to cause relative rotation of the two to be unscrewed until the filter bottle and the filter bottle cover are separated, so as to replace the filter core.

[0004] However, when the water purifier is working, the filter bottle and the filter bottle cover are subjected to water pressure for a long time and are frequently subjected to the impact of water hammer, which can easily cause the filter bottle and the filter bottle cover to rotate relative to each other to be unscrewed, thereby affecting the sealing between the filter bottle and the filter bottle cover, and even causing the sealing to fail and leak.

[0005] Therefore, how to ensure the sealing reliability between the filter bottle and the filter bottle cover is a technical problem that is focused on in the technical field. UTILITY MODEL CONTENTS

[0006] The main advantage of the utility model lies in providing a filter bottle assembly, through at least one limiting mechanism, when the filter bottle and the filter bottle cap are mutually screwed, the elastic limiting piece and the limiting protrusion of the limiting mechanism are mutually matched, in the set force range, the relative rotation of the filter bottle and the filter bottle cap which makes the limiting protrusion separate from the elastic limiting piece is prevented.

[0007] Another advantage of the utility model lies in providing a filter bottle assembly, through the limiting mechanism, the screwed state of the filter bottle and the filter bottle cap is maintained, the sealing reliability between the filter bottle and the filter bottle cap is ensured, and the sealing failure and water leakage caused by long time water pressure and frequent water hammer impact are avoided.

[0008] Correspondingly, according to the embodiment of the utility model, the filter bottle assembly with at least one aforementioned advantage comprises:

[0009] The filter bottle cap; and

[0010] The filter bottle, wherein the filter bottle is suitable for being detachably screwed with the filter bottle cap, the filter bottle and the filter bottle cap are provided with at least one limiting mechanism, wherein the limiting mechanism comprises an elastic limiting piece and a limiting protrusion, one of the elastic limiting piece and the limiting protrusion is arranged on the filter bottle, and the other is arranged on the filter bottle cap, wherein, when the filter bottle and the filter bottle cap are mutually screwed, the elastic limiting piece and the limiting protrusion are mutually matched, in the set force range, the relative rotation of the filter bottle and the filter bottle cap which makes the limiting protrusion separate from the elastic limiting piece is prevented.

[0011] In some embodiments, the elastic limiting piece comprises a base, an elastic arm and a matching groove, wherein the elastic arm extends from the base to a gap, the gap is arranged for providing avoiding space for the elastic deformation of the elastic arm, the elastic arm is provided with a convex end portion which protrudes away from the groove bottom wall of the matching groove, wherein, when the filter bottle and the filter bottle cap are mutually screwed, the limiting protrusion enters the matching groove, and in the set force range, the convex end portion is constrained in the matching groove.

[0012] In some embodiments, the elastic limiting piece is arranged on the filter bottle, and the limiting protrusion is arranged on the filter bottle cap, wherein the limiting protrusion protrudes away from the lower surface of the lower edge portion of the filter bottle cap, the base is arranged on the first end portion of the flange portion of the filter bottle, the elastic arm extends from the base to the second end portion of the flange portion, the elastic arm is separated from the second end portion of the flange portion, and the gap is formed between the base and the second end portion of the flange portion.

[0013] In some embodiments, the second end of the flange portion forms an inclined relief surface, wherein the relief surface is formed on an upper surface of the flange portion, and the relief surface is inclined toward a direction close to the elastic limiting member and a direction away from a lower surface of the lower edge portion.

[0014] In some embodiments, the elastic limiting member is arranged on the filter bottle, and the limiting protrusion is arranged on the filter bottle cap, wherein the limiting protrusion protrudes from a lower surface of a lower edge portion of the filter bottle cap toward a direction away from the lower surface of the lower edge portion, the elastic limiting member is fixed to a main body portion of the filter bottle, and the elastic limiting member is located between the first end of the flange portion and the second end of the flange portion of the filter bottle, wherein the base portion is arranged close to the first end of the flange portion.

[0015] In some embodiments, the elastic limiting member further comprises a surrounding portion, wherein the surrounding portion extends from the base portion, the surrounding portion surrounds the elastic arm, the elastic arm is separated from the surrounding portion, and the gap is formed between the base portion and the surrounding portion.

[0016] In some embodiments, the elastic limiting member is fixed to the main body portion of the filter bottle in an interference fit, wherein the main body portion is provided with a fixing protrusion located between the first end of the flange portion and the second end of the flange portion, and the base portion is provided with a fixing groove matched with the fixing protrusion.

[0017] In some embodiments, the elastic limiting member is arranged on the filter bottle cap, and the limiting protrusion is arranged on the filter bottle, wherein the limiting protrusion protrudes from an upper surface of a flange portion of the filter bottle toward a direction away from the upper surface of the flange portion, the base portion is arranged at a first end of a lower edge portion of the filter bottle cap, the elastic arm extends from the base portion to a second end of the lower edge portion, the elastic arm is separated from the second end of the lower edge portion, and the gap is formed between the base portion and the second end of the lower edge portion.

[0018] In some embodiments, the second end of the lower edge portion forms an inclined relief surface, wherein the relief surface is formed on a lower surface of the lower edge portion, and the relief surface is inclined toward a direction close to the elastic limiting member and a direction away from an upper surface of the flange portion.

[0019] In some embodiments, the filter bottle assembly further comprises a blocking wall, wherein the blocking wall is formed on the base portion as a groove side wall on a side of the matching groove away from the elastic arm.

[0020] According to another aspect of the present application, the present application further provides a water purifier, comprising:

[0021] The filter bottle assembly;

[0022] The filter cartridge, wherein the filter cartridge is adapted to be removably placed in the cavity between the filter bottle and the filter bottle cap; and

[0023] The sealing member, wherein the sealing member is adapted to be arranged between the filter bottle and the filter bottle cap.

[0024] The above and other advantages of the present application will become more apparent by describing in detail the preferred embodiments thereof with reference to the attached drawings in which:

[0025] The above and other advantages and features of the present application will become more apparent from the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings.

[0026] The contents of the summary part are not regarded as the necessary technical features for identifying the present application, nor as the limitation of the protection scope of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic view of a water purifier and a filter bottle assembly thereof according to an embodiment of the present application.

[0028] Figure 2 is an assembly schematic view of a water purifier according to the above embodiment of the present application.

[0029] Figure 3 is a schematic view of a filter bottle cap of a filter bottle assembly according to the above embodiment of the present application.

[0030] Figures 4A to 4C is a schematic view of the working principle of a limiting mechanism according to the above embodiment of the present application.

[0031] Figure 5A is a schematic view of a water purifier and a filter bottle assembly thereof according to another embodiment of the present application.

[0032] Figure 5B is a schematic view of a filter bottle and an elastic limiting member according to the above embodiment of the present application.

[0033] Figure 5C is a schematic view of a filter bottle according to the above embodiment of the present application.

[0034] Figure 5D is a schematic view of an elastic limiting member according to the above embodiment of the present application.

[0035] Figure 6A is a schematic view of a water purifier and a filter bottle assembly thereof according to another embodiment of the present application.

[0036] Figure 6B is a schematic view of a filter bottle cap according to the above embodiment of the present application.

[0037] Figure 6C is a schematic view of a filter bottle according to the above embodiment of the present utility model. DETAILED DESCRIPTION

[0038] The following description is provided so that others skilled in the art can have the best

[0039] Those skilled in the art should understand that, unless otherwise specifically indicated, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, while in another embodiment, the number of the element can be multiple.

[0040] Those skilled in the art should understand that, unless otherwise specifically indicated, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like refer to the orientation or position shown in the drawings, only for the convenience of describing the present utility model, and do not indicate or imply that the devices or elements involved must have a particular orientation or position. Therefore, the above terms should not be understood as limiting the present utility model.

[0041] Reference is made to the drawings of the present utility model specification Figures 1 to 4C , a water purifier 1 and a filter bottle assembly thereof according to an embodiment of the present utility model are illustrated. The water purifier 1 comprises a filter bottle assembly and a filter core 10, wherein the filter bottle assembly comprises a filter bottle 11 and a filter bottle cap 12, and the filter core 10 is adapted to be detachably placed in a cavity 100 between the filter bottle 11 and the filter bottle cap 12. The filter bottle 11 is adapted to be detachably screwed with the filter bottle cap 12, so as to take out the filter core 10 to be replaced by detaching and separating the filter bottle 11 and the filter bottle cap 12 from each other when the filter core 10 needs to be replaced. The water purifier 1 further comprises at least one sealing member 13, wherein the sealing member 13 is adapted to be arranged between the filter bottle 11 and the filter bottle cap 12, and when the filter bottle 11 and the filter bottle cap 12 are screwed with each other, the sealing member 13 is compressed between the filter bottle 11 and the filter bottle cap 12 to form a seal therebetween.

[0042] It can be understood that the detachable screwing manner between the filter bottle 11 and the filter bottle cap 12 includes but is not limited to threaded screwing, buckle screwing, etc. For the convenience of illustration, only threaded screwing is shown in the drawings of the present utility model, which should not be regarded as limiting the protection scope of the present utility model.

[0043] With reference to the accompanying drawings of the present utility model specification Figures 1 to 4C The filter bottle 11 and the filter bottle cover 12 are provided with at least one limiting mechanism 20, wherein the limiting mechanism 20 comprises an elastic limiting piece 21 and a limiting protrusion 22, one of the elastic limiting piece 21 and the limiting protrusion 22 is arranged on the filter bottle 11, and the other is arranged on the filter bottle cover 12. When the filter bottle 11 and the filter bottle cover 12 are screwed together, the elastic limiting piece 21 and the limiting protrusion 22 cooperate with each other to prevent the filter bottle 11 and the filter bottle cover 12 from rotating relative to each other within a certain force range, so that the filter bottle 11 and the filter bottle cover 12 can be maintained in a screwed state, ensuring the sealing reliability between the filter bottle 11 and the filter bottle cover 12, and avoiding water leakage due to long-term water pressure and frequent water hammer impact. In other words, the force caused by water pressure and water hammer impact to make the filter bottle 11 and the filter bottle cover 12 unscrewed is limited and does not exceed the set force range, and is not enough to make the limiting protrusion 22 separate from the elastic limiting piece 21, so that the screwed state of the filter bottle 11 and the filter bottle cover 12 is maintained. When the user needs to replace the filter core 10, an action force exceeding the set force range can be applied to make the limiting protrusion 22 separate from the elastic limiting piece 21, so that the filter bottle 11 and the filter bottle cover 12 can rotate relative to each other until they are separated. It can be understood that the set force range can be calculated, simulated and / or tested according to the water pressure of the actual application scene.

[0044] As Figures 1 to 3As shown, the elastic limiting piece 21 is arranged on the filter bottle 11, and the limiting protrusion 22 is arranged on the filter bottle cap 12. In the embodiment, the limiting protrusion 22 protrudes from the lower surface of the lower edge portion 121 of the filter bottle cap 12 in a direction away from the lower surface of the lower edge portion 121, and the elastic limiting piece 21 extends from the first end portion 1111 of the flange portion 111 of the filter bottle 11 to the second end portion 1112 of the flange portion 111, wherein the flange portion 111 of the filter bottle 11 and the lower edge portion 121 of the filter bottle cap 12 are opposite to each other when the filter bottle 11 is screwed with the filter bottle cap 12. It can be understood that the limiting protrusion 22 protrudes from the lower surface of the lower edge portion 121 of the filter bottle cap 12 in a direction away from the lower surface of the lower edge portion 121, specifically, the limiting protrusion 22 extends from the lower edge portion 121 of the filter bottle cap 12 to the flange portion 111 of the filter bottle 11 when the filter bottle 11 is screwed with the filter bottle cap 12. Preferably, the limiting protrusion 22 is integrally formed on the lower edge portion 121 of the filter bottle cap 12. Alternatively, in some embodiments of the utility model, the limiting protrusion 22 can also be fixed on the lower edge portion 121 of the filter bottle cap 12 as an independent element, and the fixing mode of the limiting protrusion 22 includes but is not limited to fixing by a fixing member (such as a screw), adhesive fixing, buckle fixing and / or interference fit fixing and the like. It can be understood that by separately manufacturing the limiting protrusion 22, a material with better elasticity can be used for manufacturing, and the manufacturing material of the filter bottle cap 12 is not limited.

[0045] As Figure 1 and Figure 2As shown, specifically, the elastic limiting piece 21 comprises a base 211 and an elastic arm 212, wherein the base 211 is arranged at the first end portion 1111 of the flange portion 111 of the filter bottle 11, the elastic arm 212 extends from the base 211 to the second end portion 1112 of the flange portion 111, and the elastic arm 212 is separated from the second end portion 1112 of the flange portion 111. A gap 1110 is formed between the base 211 and the second end portion 1112 of the flange portion 111, which provides sufficient space for the elastic deformation of the elastic arm 212 to avoid interference and blockage of the elastic arm 212. The elastic limiting piece 21 is provided with a matching groove 210, wherein when the filter bottle 11 and the filter bottle cap 12 are screwed together, the limiting protrusion 22 enters the matching groove 210 and is constrained in the matching groove 210 within a certain range of force. The elastic arm 212 is provided with a convex end portion 2121 for cooperating with the limiting protrusion 22 to realize the function of the limiting mechanism 20, wherein the convex end portion 2121 protrudes away from the groove bottom wall of the matching groove 210. It can be understood that the convex end portion 2121 protrudes away from the groove bottom wall of the matching groove 210, specifically, when the filter bottle 11 and the filter bottle cap 12 are screwed together, the convex end portion 2121 protrudes towards the lower edge portion 121 of the filter bottle cap 12. Preferably, the elastic limiting piece 21 is integrally formed at the first end portion 1111 of the flange portion 111 of the filter bottle 11. Alternatively, in some embodiments of the present application, the elastic limiting piece 21 can also be an independent element, which is fixed to the first end portion 1111 of the flange portion 111 through the base 211, and the fixing mode of the elastic limiting piece 21 includes but is not limited to fixing by a fixing member such as a screw, adhesive fixing, buckle fixing and / or interference fit fixing, etc. It can be understood that by separately manufacturing the elastic limiting piece 21, a material with better elasticity can be used, which is not limited by the manufacturing material of the filter bottle 11.

[0046] As Figure 4A shown, when the filter bottle 11 and the filter bottle cap 12 are screwed together, even if the filter bottle 11 and the filter bottle cap 12 have a tendency to be unscrewed due to water pressure or impact of water hammer, the limiting protrusion 22 will be blocked by the convex end portion 2121 of the elastic arm 212, thereby being constrained in the matching groove 210. The filter bottle 11 and the filter bottle cap 12 cannot relatively rotate to make the limiting protrusion 22 separate from the elastic limiting piece 21, so that the filter bottle 11 and the filter bottle cap 12 can be maintained in a screwed state, thereby ensuring the sealing reliability between the filter bottle 11 and the filter bottle cap 12.

[0047] As Figure 4BAs shown, when the filter bottle 11 is about to be screwed with the filter bottle cap 12, the limiting protrusion 22 gradually approaches the convex end portion 2121 of the elastic arm 212, and then contacts and presses against the convex end portion 2121, so that the elastic arm 212 is elastically deformed, and the convex end portion 2121 can move downward to allow the limiting protrusion 22 to continue to move until it enters the matching groove 210. When the limiting protrusion 22 fully enters the matching groove 210, the limiting protrusion 22 no longer presses against the convex end portion 2121, and the elastic arm 212 can restore its original shape to constrain the limiting protrusion 22 in the matching groove 210.

[0048] In order to enhance the aesthetic degree of the filter bottle 11 and the filter bottle cap 12 after being screwed, the gap between the lower edge portion 121 of the filter bottle cap 12 and the flange portion 111 of the filter bottle 11 when the filter bottle assembly is in a screwed state should be reduced. If the gap is too small, the limiting protrusion 22 will be interfered and blocked by the flange portion 111 of the filter bottle 11 in the process of gradually approaching the convex end portion 2121 of the elastic arm 212, which causes the limiting protrusion 22 to be unable to further move and contact the convex end portion 2121, and further causes the limiting protrusion 22 to be unable to cooperate with the elastic limiting piece 21. In order to solve the above technical problem, the second end portion 1112 of the flange portion 111 forms an inclined avoiding surface 220, as shown in Figure 1 、 Figure 2 and Figures 4A to 4C As shown, the avoiding surface 220 is formed on the upper surface of the flange portion 111, and the avoiding surface 220 is inclined downward in the direction close to the elastic limiting piece 21. It can be understood that the downward inclination specifically refers to the inclination in the direction away from the lower surface of the lower edge portion 121 of the filter bottle cap 12 when the filter bottle 11 is screwed with the filter bottle cap 12. As shown in Figure 4C In the process of gradually approaching the convex end portion 2121 of the elastic arm 212, the avoiding surface 220 can provide sufficient avoiding space for the movement of the limiting protrusion 22 to avoid interfering and blocking the limiting protrusion 22. Therefore, when the filter bottle assembly is in a screwed state, the gap between the upper surface of the flange portion 111 except the avoiding surface 220 and the lower edge portion 121 of the filter bottle cap 12 can be reduced as much as possible, so as to enhance the aesthetic degree of the filter bottle assembly after being screwed.

[0049] As shown in Figure 1 、 Figure 2 and Figures 4A to 4CAs shown, the filter bottle assembly further includes a blocking wall 213 to block the movement of the limiting protrusion 22. In other words, after the filter bottle 11 and the filter bottle cap 12 are screwed together (forming an effective seal), the blocking wall 213 can prevent the filter bottle 11 and the filter bottle cap 12 from rotating relative to each other and further tightening, so as to prevent the filter bottle 11 and the filter bottle cap 12 from being screwed too tightly and becoming difficult to unscrew. Preferably, the blocking wall 213 is formed at the base 211 of the elastic limiting member 21, serving as the groove sidewall of the mating groove 210 on the side away from the elastic arm 212. Optionally, the blocking wall 213 is formed at the first end 1111 of the flange portion 111.

[0050] Refer to the accompanying drawings in this utility model specification. Figures 5A to 5D A water purifier 1 and its filter bottle assembly according to another embodiment of the present invention are described, which is similar to... Figures 1 to 4C The differences between the illustrated embodiment and the optional embodiment will be described in detail below. In this embodiment, the elastic limiting member 21 is not integrally formed on the first end 1111 of the flange portion 111, but is fixed to the main body 112 of the filter bottle 11. The elastic limiting member 21 is fixed between the first end 1111 and the second end 1112 of the flange portion 111, wherein the base 211 of the elastic limiting member 21 is disposed close to the first end 1111 of the flange portion 111. The fixing method of the elastic limiting member 21 includes, but is not limited to, fixing with fasteners (such as screws), adhesive fixing, snap-fit ​​fixing, and / or interference fit fixing. It can be understood that in this embodiment, the elastic limiting member 21 is also a separately manufactured independent component, and can also be made of a more elastic material, without being limited by the manufacturing material of the filter bottle 11.

[0051] like Figure 5C and Figure 5DAs shown, preferably, the elastic limiting piece 21 is fixed to the main body part 112 of the filter bottle 11 in a manner of interference fit. Specifically, the main body part 112 is provided with a fixing protrusion 1121 between the first end part 1111 of the flange part 111 and the second end part 1112 of the flange part 111, and the base part 211 of the elastic limiting piece 21 is provided with a fixing groove 2110 matched with the fixing protrusion 1121, and through the interference fit of the fixing protrusion 1121 and the fixing groove 2110, the elastic limiting piece 21 can be fixed to the main body part 112. In order to make the interference fit of the fixing protrusion 1121 and the fixing groove 2110 more reliable, a protruding rib can be arranged at the fixing protrusion 1121 and / or the fixing groove 2110. Alternatively, in some embodiments of the present application, the fixing protrusion 1121 and the fixing groove 2110 can be interchanged, i.e. the groove is arranged at the main body part 112, and the protrusion is arranged at the base part 211.

[0052] As shown in Figure 5A , Figure 5B and Figure 5D , the elastic limiting piece 21 further comprises a surrounding part 214, wherein the surrounding part 214 extends from the base part 211, the surrounding part 214 surrounds the elastic arm 212, and the elastic arm 212 and the surrounding part 214 are separated from each other. A gap 1110 is formed between the base part 211 and the surrounding part 214, which provides sufficient avoiding space for the elastic deformation of the elastic arm 212, so as to avoid interference and blockage of the elastic arm 212. It can be understood that, since the surrounding part 214 surrounds the elastic arm 212, the surrounding part 214 can play a role of shielding ultraviolet rays, and can reduce the degree of irradiation of the elastic arm 212 by ultraviolet rays, thereby avoiding the rapid aging of the elastic arm 212 due to the irradiation of ultraviolet rays.

[0053] Reference is made to the drawings of the present application Figures 6A to 6C , the water purifier 1 and the filter bottle assembly thereof according to another embodiment of the present application are illustrated, which are similar to Figures 1 to 4CThe difference between the embodiments and the optional embodiments will be described in detail in the following description. In the embodiments, the elastic limiting member 21 is arranged on the filter bottle cap 12, and the limiting protrusion 22 is arranged on the filter bottle 11. The limiting protrusion 22 protrudes away from the upper surface of the flange portion 111 of the filter bottle 11, and the elastic limiting member 21 extends from the first end portion 1211 of the lower edge portion 121 of the filter bottle cap 12 to the second end portion 1212 of the lower edge portion 121. The limiting protrusion 22 can be integrally formed on the upper surface of the flange portion 111 of the filter bottle 11, or can be fixed on the upper surface of the flange portion 111 of the filter bottle 11 as an independent element. The base portion 211 of the elastic limiting member 21 is arranged on the first end portion 1211 of the lower edge portion 121 of the filter bottle cap 12, the elastic arm 212 of the elastic limiting member 21 extends from the base portion 211 to the second end portion 1212 of the lower edge portion 121, and the elastic arm 212 is separated from the second end portion 1212 of the lower edge portion 121. A gap 1110 is formed between the base portion 211 and the second end portion 1212 of the lower edge portion 121 to provide sufficient space for the elastic deformation of the elastic arm 212 to avoid interference and obstruction of the elastic arm 212. The elastic limiting member 21 can be integrally formed on the first end portion 1211 of the lower edge portion 121 of the filter bottle cap 12, or can be fixed on the first end portion 1211 of the lower edge portion 121 as an independent element through the base portion 211. The second end portion 1212 of the lower edge portion 121 forms an inclined avoidance surface 220, as shown in Figure 6A and Figure 6B The avoidance surface 220 is formed on the lower surface of the lower edge portion 121, and the avoidance surface 220 is inclined upwardly towards the elastic limiting member 21. It can be understood that the upward inclination specifically refers to the inclination away from the upper surface of the flange portion 111 of the filter bottle 11 when the filter bottle 11 is screwed with the filter bottle cap 12.

[0054] It can be understood by those skilled in the art that the above embodiments are only examples, and the features of different embodiments can be combined with each other to obtain embodiments that can be easily thought of according to the disclosure of the present application but are not explicitly indicated in the drawings.

[0055] It should be understood by those skilled in the art that the embodiments described above and shown in the drawings are only for illustrative explanation of the present application, but not a limitation of 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 application relates to a filter bottle cap and a filter bottle. The filter bottle cap comprises: A filter bottle cap; And 2. The filter bottle assembly of claim 1, wherein, The filter bottle is suitable for detachable screwing with the filter bottle cap, and the filter bottle and the filter bottle cap are provided with at least one limiting mechanism, wherein one of the limiting mechanism and the limiting protrusion is arranged on the filter bottle, and the other is arranged on the filter bottle cap, and when the filter bottle and the filter bottle cap are screwed with each other, the elastic limiting part and the limiting protrusion are matched with each other to prevent the relative rotation of the filter bottle and the filter bottle cap from causing the limiting protrusion to be separated from the elastic limiting part within a set force range.

3. The filter bottle assembly of claim 2, wherein, The elastic limiting part comprises a base, an elastic arm and a matching groove, wherein the elastic arm extends from the base to a gap, the gap is arranged to provide a clearance space for the elastic deformation of the elastic arm, the elastic arm is provided with a convex end part which protrudes away from the groove bottom wall of the matching groove, and when the filter bottle and the filter bottle cap are screwed with each other, the limiting protrusion enters the matching groove and is constrained in the matching groove by the convex end part within a set force range.

4. The filter bottle assembly of claim 3, wherein, The elastic limiting part is arranged on the filter bottle, and the limiting protrusion is arranged on the filter bottle cap, wherein the limiting protrusion protrudes away from the lower surface of the lower edge part of the filter bottle cap, the base is arranged on the first end part of the flange part of the filter bottle, the elastic arm extends from the base to the second end part of the flange part, the elastic arm is separated from the second end part of the flange part, and the gap is formed between the base and the second end part of the flange part.

5. The filter bottle assembly of claim 2, wherein, The second end part of the flange part forms an inclined clearance surface, wherein the clearance surface is formed on the upper surface of the flange part, and the clearance surface is inclined towards the direction close to the elastic limiting part and away from the lower surface of the lower edge part.

6. The filter bottle assembly of claim 5, wherein, The elastic limiting part is arranged on the filter bottle, and the limiting protrusion is arranged on the filter bottle cap, wherein the limiting protrusion protrudes away from the lower surface of the lower edge part of the filter bottle cap, the elastic limiting part is fixed to the main body part of the filter bottle, and the elastic limiting part is located between the first end part of the flange part of the filter bottle and the second end part of the flange part, wherein the base is arranged close to the first end part of the flange part.

7. The filter bottle assembly of claim 6, wherein, The elastic limiting part further comprises a surrounding part, wherein the surrounding part extends from the base, surrounds the elastic arm, and the elastic arm is separated from the surrounding part, and the gap is formed between the base and the surrounding part. The elastic limiting part is fixed to the main body part of the filter bottle in an interference fit, wherein the main body part is provided with a fixing protrusion located between the first end part of the flange part and the second end part of the flange part, and the base is provided with a fixing groove matched with the fixing protrusion.

8. The filter bottle assembly of claim 6, wherein, The second end portion of the flange portion forms an inclined escape surface, wherein the escape surface is formed on an upper surface of the flange portion, and the escape surface is inclined toward a direction close to the elastic limiting member and a direction away from a lower surface of the lower edge portion.

9. The filter bottle assembly of claim 2, wherein, The elastic limiting member is arranged on the filter bottle cap, and the limiting protrusion is arranged on the filter bottle, wherein the limiting protrusion protrudes from an upper surface of a flange portion of the filter bottle toward a direction away from the upper surface of the flange portion, the base portion is arranged on a first end portion of a lower edge portion of the filter bottle cap, the elastic arm extends from the base portion to a second end portion of the lower edge portion, the elastic arm is separated from the second end portion of the lower edge portion, and the gap is formed between the base portion and the second end portion of the lower edge portion.

10. The filter bottle assembly of claim 9, wherein, The second end portion of the lower edge portion forms an inclined escape surface, wherein the escape surface is formed on a lower surface of the lower edge portion, and the escape surface is inclined toward a direction close to the elastic limiting member and a direction away from an upper surface of the flange portion.

11. The filter bottle assembly of any one of claims 2-10, wherein, A blocking wall is further provided, wherein the blocking wall is formed on the base portion as a groove side wall on a side of the engaging groove away from the elastic arm.

12. A water purifier characterized by comprising: Comprise: The filter bottle assembly according to any one of claims 1-10; A filter core, wherein the filter core is adapted to be detachably placed in a cavity between the filter bottle and the filter bottle cap; And A sealing member, wherein the sealing member is adapted to be arranged between the filter bottle and the filter bottle cap.

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