Filter bottle assembly and water purifier

Abstract

The filter bottle assembly comprises a filter bottle and a filter bottle cover, one end of the filter bottle is provided with an opening, the filter bottle cover is provided with a cover body and a surrounding body axially extending from the periphery of the cover body, the end, where the opening is located, of the filter bottle is provided with a first connecting section, and the surrounding body is in threaded connection with the first connecting section so that the opening can be sealed and covered by the cover body; the filter bottle is provided with a second connecting section below the first connecting section, the second connecting section is connected with the bottom of the enclosure body through a limiting structure, and the limiting structure is configured to limit the enclosure body to continuously rotate in the screwing-in direction when the enclosure body is screwed to the in-place position relative to the first connecting section in the screwing-in direction; and the enclosing body is kept at the in-place position. According to the utility model, not only can the phenomenon that the filter bottle cap is loosened relative to the filter bottle when the filter bottle cap is screwed in place be prevented, but also damage caused by overload of threads due to continuous force application and screwing after the filter bottle cap is screwed in place can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and particularly to a filter bottle assembly and a water purifier. Background Art

[0002] With the improvement of people's living standards, the quality requirements for drinking water are also getting higher and higher. During the use of water purifiers, in order to ensure that users can obtain high-quality drinking water, the filter element needs to be replaced after its service life expires. For this reason, water purifiers capable of replacing filter elements are widely used due to their characteristics of cost savings and long service life.

[0003] For existing water purifiers capable of replacing filter elements, the filter bottle cap and the filter bottle are usually separated, and they are usually connected by a threaded structure. Since users are not clear whether the filter bottle cap is screwed in place relative to the filter bottle, when the filter bottle cap is not screwed in place relative to the filter bottle and is directly used, the filter bottle cap may become loose relative to the filter bottle, resulting in water leakage; or when the filter bottle cap is screwed in place relative to the filter bottle, the filter bottle cap may become loose relative to the filter bottle due to the impact force of the water in the filter bottle assembly; or when the filter bottle cap is screwed in place relative to the filter bottle and continues to be tightened with force, the thread may be overloaded and damaged. Summary of the Utility Model

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present utility model, a filter bottle assembly is provided, and the technical solution is as follows.

[0005] The filter bottle assembly includes a filter bottle and a filter bottle cap. One end of the filter bottle is open, the filter bottle cap has a cap body and an enclosure body axially extending from the periphery of the cap body. The filter bottle has a first connection section at the end where the opening is located. The enclosure body is threadedly connected to the first connection section so that the cap body covers the opening. The filter bottle is provided with a second connection section below the first connection section. The second connection section and the bottom of the enclosure body are connected by a limiting structure. The limiting structure is configured to: when the enclosure body is screwed relative to the first connection section to the in-place position along the screwing-in direction, the limiting structure restricts the enclosure body from continuing to rotate along the screwing-in direction and keeps the enclosure body in the in-place position.

[0006] For the filter bottle assembly of the present utility model, when the enclosure body rotates along the screwing-in direction relative to the first connection section to the in-place position, the rotation of the enclosure body along the screwing-in direction is restricted by the limiting structure, and the enclosure body is maintained at the in-place position. On the one hand, when the enclosure body cannot continue to rotate along the screwing-in direction relative to the first connection section, it means that the filter bottle cap is screwed in place relative to the filter bottle, avoiding the loosening of the two due to the filter bottle cap not being screwed in place relative to the filter bottle, preventing water leakage, and preventing the phenomenon of damage caused by overloading the thread due to the user continuing to apply force to tighten after not knowing that the filter bottle cap is screwed in place relative to the filter bottle. On the other hand, by the limiting structure, the enclosure body is maintained at the in-place position, preventing the phenomenon that when the filter bottle cap is screwed in place relative to the filter bottle, the enclosure body rotates along the screwing-out direction relative to the first connection section due to the impact force of the water in the filter bottle assembly, resulting in the loosening of the filter bottle cap relative to the filter bottle.

[0007] Exemplarily, the limiting structure includes a locking groove and a locking protrusion. When the enclosure body rotates along the screwing-in direction relative to the first connection section to the in-place position, at least part of the locking protrusion extends into the locking groove. With such a setting, by at least part of the locking protrusion extending into the locking groove, the enclosure body is effectively maintained at the in-place position, preventing the loosening of the enclosure body relative to the first connection section, preventing water leakage, and the structures of the locking groove and the locking protrusion are simple and easy to process and manufacture.

[0008] Exemplarily, the bottom of the enclosure body protrudes away from the cap body to form a first protrusion and a second protrusion, and a locking groove is formed between the first protrusion and the second protrusion; the locking protrusion protrudes radially outward from the outer edge of the second connection section. With such a setting, it is ensured that when the enclosure body rotates along the screwing-in direction relative to the first connection section to the in-place position, the rotation of the enclosure body along the screwing-in direction is restricted by the cooperation of the locking protrusion, the first protrusion and the second protrusion, and the enclosure body is maintained at the in-place position, avoiding the interference of the first protrusion, the second protrusion or the locking protrusion to the enclosure body rotating along the screwing-in direction relative to the first connection section to the in-place position, and the locking groove is composed of two parts, namely the first protrusion and the second protrusion, which can disperse the acting force of the locking protrusion on the locking groove, thereby prolonging the service life of the locking groove.

[0009] Exemplarily, the second connecting section has a stepped portion protruding radially outward relative to the first connecting section. At the top end of the stepped portion, a first convex portion and a second convex portion protrude toward the cover body, and a latching groove is formed between the first convex portion and the second convex portion; the engaging convex block protrudes from the bottom of the enclosure body in a direction away from the cover body. With such a setting, when the enclosure body is rotated along the screwing-in direction relative to the first connecting section to the in-place position, the engaging convex block, the first convex portion, and the second convex portion cooperate to limit the further rotation of the enclosure body along the screwing-in direction and keep the enclosure body in the in-place position, avoiding interference of the first convex portion, the second convex portion, or the engaging convex block with the rotation of the enclosure body along the screwing-in direction relative to the first connecting section to the in-place position. Moreover, the latching groove is composed of two parts, namely the first convex portion and the second convex portion, which can disperse the acting force of the engaging convex block on the latching groove, thereby prolonging the service life of the latching groove.

[0010] Exemplarily, the first convex portion has a first height H1, and the first height H1 is 0.6 mm to 0.7 mm. With such a setting, when the first height H1 is within this range, it is convenient for the engaging convex block to extend into the latching groove, and it prevents the situation that the engaging convex block withdraws from the latching groove by itself due to insufficient height of the first convex portion, and also prevents the situation that the engaging convex block is difficult to extend into or even unable to extend into the latching groove due to excessive height of the first convex portion.

[0011] Exemplarily, the first convex portion has a first width D1, and the first width D1 is 10 mm to 12 mm. With such a setting, when the first width D1 is within this range, it has a certain hindrance to the self-withdrawal of the engaging convex block from the latching groove, and can effectively ensure the strength of the first convex portion itself, preventing the situation that the engaging convex block is difficult to extend into the latching groove due to the excessive width of the first convex portion, and also preventing the situation that the engaging convex block withdraws from the latching groove by itself due to the too narrow first convex portion and the ineffective limitation of the position of the engaging convex block.

[0012] Exemplarily, the first convex portion has a first end face in a direction away from the cover body, and the first end face is arc-shaped. With such a setting, the engaging convex block can smoothly extend into the latching groove without a large acting force.

[0013] Exemplarily, the second convex portion has a second height H2, and the second height H2 is 2 mm to 2.5 mm. With such a setting, when the second height H2 is within this range, it can effectively prevent the enclosure body from continuing to rotate after being rotated along the screwing-in direction relative to the first connecting section to the in-place position, and prevent the situation that the enclosure body cannot be blocked from continuing to rotate after being rotated along the screwing-in direction relative to the first connecting section to the in-place position due to insufficient height of the second convex portion, and also prevent the situation that the second convex portion contacts the filter bottle or the filter bottle cap and hinders the locking of the filter bottle assembly due to excessive height of the second convex portion.

[0014] Exemplarily, the second convex portion has a second width D2, and the second width D2 is 11 mm to 13 mm. With such a setting, when the second width D2 is within this range, there is a certain obstruction to the continued rotation of the enclosure relative to the first connecting section after being screwed to the in-place position along the screwing-in direction, and the strength of the second convex portion itself can be effectively ensured, preventing waste of materials due to the over-wide second convex portion and preventing damage to the second convex portion due to the over-narrow second convex portion.

[0015] Exemplarily, the second convex portion is funnel-shaped. With such a setting, the cooperation effect between the second convex portion and the engaging convex block is better, effectively preventing the situation where the enclosure continues to rotate relative to the first connecting section after being screwed to the in-place position along the screwing-in direction, and the funnel-shaped second convex portion has higher strength and is not easily damaged.

[0016] Exemplarily, the engaging convex block has a third height H3, and the third height H3 is 3 mm to 5 mm. With such a setting, when the third height H3 is within this range, the engaging convex block can be effectively made to at least partially extend into the locking groove, thereby preventing the enclosure from continuing to rotate relative to the first connecting section after reaching the in-place position along the screwing-in direction, preventing the situation where the engaging convex block cannot extend into the locking groove due to insufficient height, and preventing the situation where the excessive height of the engaging convex block hinders the cooperation between the engaging convex block and the locking groove.

[0017] Exemplarily, the engaging convex block has a third width D3, and the third width D3 is 3 mm to 5 mm. With such a setting, when the third width D3 is within this range, the strength of the engaging convex block itself can be effectively ensured, thus preventing the situation where the engaging convex block is easily damaged due to being too narrow, and preventing the situation where the engaging convex block cannot fully extend into the locking groove due to being too wide.

[0018] Exemplarily, the longitudinal cross-sectional shape of the engaging convex block is square. With such a setting, the cooperation effect between the engaging convex block and the locking groove is better, effectively restricting the continued rotation of the enclosure relative to the first connecting section after reaching the in-place position along the screwing-in direction, keeping the enclosure in the in-place position, and being easy to process.

[0019] According to another aspect of the present invention, a water purifier is provided, including a filter element, a machine body, and a filter bottle assembly. The filter element is disposed in the filter bottle through an opening, and the filter bottle assembly is disposed in the machine body. Since the filter bottle assembly as described above has the above beneficial effects, the water purifier including the filter bottle assembly as described above also has the above beneficial effects, which will not be elaborated herein one by one.

[0020] Exemplarily, the lid body or the enclosure has a first locking mark, and the body has a second locking mark. When the enclosure is rotated along the screwing-in direction relative to the first connecting section to the in-place position, the first locking mark and the second locking mark are in alignment. With this arrangement, the user can determine whether the filter bottle cap is screwed in place relative to the filter bottle by observing the relative positions of the first locking mark and the second locking mark. By combining the setting of the limiting structure and observing the relative positions of the first locking mark and the second locking mark in these two ways to remind the user whether the filter bottle cap is screwed in place relative to the filter bottle, it can better prevent the phenomenon that the two become loose due to the user's unawareness that the filter bottle cap is not screwed in place relative to the filter bottle, prevent water leakage, and prevent the phenomenon that when the filter bottle cap is screwed in place relative to the filter bottle, the enclosure rotates along the screwing-out direction relative to the first connecting section due to the impact force of the water in the filter bottle assembly, resulting in the loosening of the filter bottle cap relative to the filter bottle. At the same time, it prevents the phenomenon that due to the user's unawareness that the filter bottle cap is already screwed in place and continuing to apply force to tighten it, the thread is overloaded and damaged, thereby improving the user's experience.

[0021] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the specific implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0022] The following will, with reference to the accompanying drawings, detail the advantages and features of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings of the present utility model are hereby part of the present utility model for understanding the present utility model. The embodiments and descriptions thereof shown in the drawings are used to explain the principles of the present utility model. In the drawings,

[0024] Figure 1 is a perspective view of a filter bottle assembly according to an exemplary embodiment of the present utility model;

[0025] Figure 2 is Figure 1 the front view of the filter bottle assembly shown;

[0026] Figure 3 is Figure 1 the exploded view of the filter bottle assembly shown;

[0027] Figure 4 is Figure 3 the enlarged view of part A in

[0028] Figure 5 is a perspective view of a part of a water purifier according to an exemplary embodiment of the present utility model.

[0029] Among them, the above-mentioned drawings include the following reference numerals:

[0030] 10. Filter bottle assembly; 110. Filter bottle; 111. First connection section; 112. Second connection section; 1121. Step portion; 120. Filter bottle cap; 121. Cap body; 122. Enclosure; 130. Limiting structure; 131. Latching groove; 1311. First protrusion; 1311a. First end face; 1312. Second protrusion; 132. Latching protrusion; 140. First locking mark; 150. Sealing groove; 20. Machine body; 210. Second locking mark; X. Screw-in direction; Y. Screw-out direction. Detailed implementation mode

[0031] In the following description, a large number of details are provided to enable a thorough understanding of the present utility model. However, those skilled in the art can understand that the following description only exemplarily shows the preferred embodiments of the present utility model, and the present utility model can be implemented without one or more such details. In addition, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described in detail.

[0032] In order to thoroughly understand the implementation mode of the present utility model, detailed structures will be presented in the following description. Obviously, the implementation of the implementation mode of the present utility model is not limited to the special details familiar to those skilled in the art. The preferred implementation mode of the present utility model is described in detail below. However, in addition to these detailed descriptions, the present utility model can also have other implementation modes.

[0033] An embodiment of the present utility model provides a filter bottle assembly. The filter bottle assembly provided by the present utility model can be applied to a water purifier. The following will introduce in detail a filter bottle assembly according to an embodiment of the present utility model with reference to the drawings.

[0034] With reference to Figures 1 to 4 , the filter bottle assembly 10 may include a filter bottle 110 and a filter bottle cap 120. One end of the filter bottle 110 may be open. The filter bottle cap 120 may have a cap body 121 and an enclosure 122 axially extending from the periphery of the cap body 121. The filter bottle 110 may have a first connection section 111 at the open end. The enclosure 122 may be threadedly connected to the first connection section 111 so that the cap body 121 covers the opening. The filter bottle 110 may be provided with a second connection section 112 below the first connection section 111. The second connection section 112 and the bottom of the enclosure 122 may be connected by a limiting structure 130. The limiting structure 130 is configured such that when the enclosure 122 is rotated relative to the first connection section 111 along the screw-in direction X to the in-place position (as shown in Figure 1 and Figure 2 ), the limiting structure 130 can limit the enclosure 122 from continuing to rotate along the screw-in direction X and can hold the enclosure 122 in the in-place position.

[0035] For the filter bottle assembly 10 of the present utility model, when the enclosure 122 rotates to the in-place position relative to the first connecting section 111 along the screwing-in direction X, the limiting structure 130 restricts the enclosure 122 from continuing to rotate along the screwing-in direction X and keeps the enclosure 122 in the in-place position. On the one hand, when the enclosure 122 cannot continue to rotate relative to the first connecting section 111 along the screwing-in direction X, it means that the filter bottle cap 120 is screwed in place relative to the filter bottle 110, avoiding the loosening phenomenon of the filter bottle cap 120 and the filter bottle 110 due to the filter bottle cap 120 not being screwed in place, preventing water leakage, and preventing the phenomenon of thread overload and damage caused by the user continuing to apply force to tighten after not knowing that the filter bottle cap 120 is screwed in place relative to the filter bottle 110; on the other hand, by the limiting structure 130 keeping the enclosure 122 in the in-place position, it prevents the enclosure 122 from rotating relative to the first connecting section 111 along the screwing-out direction Y due to the impact force of the water in the filter bottle assembly 10 when the filter bottle cap 120 is screwed in place relative to the filter bottle 110, resulting in the loosening phenomenon of the filter bottle cap 120 relative to the filter bottle 110.

[0036] It should be noted that the screwing-in direction X refers to the rotation direction of the filter bottle cap 120 relative to the filter bottle 110 when the filter bottle cap 120 is screwed tightly relative to the filter bottle 110; the screwing-out direction Y refers to the rotation direction of the filter bottle cap 120 relative to the filter bottle 110 when the filter bottle cap 120 is unscrewed relative to the filter bottle 110.

[0037] Furthermore, the limiting structure 130 can be one or more. Understandably, when the number of the limiting structures 130 increases, the limiting effect of the limiting structure 130 on the enclosure 122 and the first connecting section 111 also increases. When there are multiple limiting structures 130, the limiting structures 130 can be arranged at intervals along the circumferential direction of the filter bottle assembly 10 to have a better limiting effect on the filter bottle 110 and the filter bottle cap 120.

[0038] In addition, in order to make the sealing performance of the filter bottle assembly 10 better, a sealing groove 150 for installing a sealing ring (not shown in the figure) can be provided at one end of the first connecting section 111 close to the opening, so as to form a sealing structure by installing a sealing ring in the sealing groove 150 and the inner wall of the enclosure 122. The filter bottle 110 and the filter bottle cap 120 can be cylindrical structures. Understandably, the cylindrical structures of the filter bottle 110 and the filter bottle cap 120 can also make the liquid flow more smoothly during the filtering process, reduce the possibility of blockage, and improve the filtering speed. Of course, the filter bottle 110 and the filter bottle cap 120 can also be other shapes respectively.

[0039] Refer to in combination Figures 1 to 3, the limiting structure 130 may include a latching groove 131 and a latching protrusion 132. When the enclosure 122 rotates relative to the first connecting section 111 along the screwing direction X to the in-place position, at least a part of the latching protrusion 132 can extend into the latching groove 131. By at least a part of the latching protrusion 132 extending into the latching groove 131, the enclosure 122 can be effectively held in the in-place position, preventing the enclosure 122 from loosening relative to the first connecting section 111 and preventing water leakage. Moreover, the structures of the latching groove 131 and the latching protrusion 132 are simple and easy to process and manufacture. Specifically, the latching groove 131 can be an integral structure or composed of multiple structural members, and the latching protrusion 132 can be an integral structure or composed of multiple structural members.

[0040] Referring to Figures 1 to 4 , a first convex portion 1311 and a second convex portion 1312 can protrude from the bottom of the enclosure 122 in a direction away from the lid body 121. A latching groove 131 can be formed between the first convex portion 1311 and the second convex portion 1312. The latching protrusion 132 can protrude radially outward from the outer edge of the second connecting section 112. It is ensured that when the enclosure 122 rotates relative to the first connecting section 111 along the screwing direction X to the in-place position, the latching protrusion 132, the first convex portion 1311 and the second convex portion 1312 cooperate to limit the further rotation of the enclosure 122 along the screwing direction X and hold the enclosure 122 in the in-place position. It avoids the first convex portion 1311 and the second convex portion 1312 or the latching protrusion 132 interfering with the enclosure 122 rotating relative to the first connecting section 111 along the screwing direction X to the in-place position. And the latching groove 131 composed of the first convex portion 1311 and the second convex portion 1312 can disperse the acting force of the latching protrusion 132 on the latching groove 131, thereby extending the service life of the latching groove 131. Specifically, the number of the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 can be the same, and the latching grooves 131 formed between the latching protrusions 132 and the first convex portions 1311 and the second convex portions 1312 can be arranged in one-to-one correspondence. The latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 can be arranged in multiple groups along the circumferential direction of the filter bottle assembly 10. Preferably, the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 can be arranged in two groups opposite to each other along the circumferential direction of the filter bottle assembly 10, so as to better limit the further rotation of the enclosure 122 along the screwing direction X and hold the enclosure 122 in the in-place position through the cooperation of these two groups of latching protrusions 132, the first convex portions 1311 and the second convex portions 1312.

[0041] In an embodiment not shown in the figures, the second connecting section 112 may have a stepped portion 1121 protruding radially outward relative to the first connecting section 111. At the top of the stepped portion 1121, a first convex portion 1311 and a second convex portion 1312 may protrude toward the cover body 121. A latching groove 131 may be formed between the first convex portion 1311 and the second convex portion 1312. The latching protrusion 132 may protrude from the bottom of the enclosure body 122 in a direction away from the cover body 121. It is ensured that when the enclosure body 122 is rotated relative to the first connecting section 111 along the screwing-in direction X to the in-place position, the latching protrusion 132, the first convex portion 1311 and the second convex portion 1312 cooperate to limit the further rotation of the enclosure body 122 along the screwing-in direction X and hold the enclosure body 122 in the in-place position. It is avoided that the first convex portion 1311, the second convex portion 1312 or the latching protrusion 132 interfere with the rotation of the enclosure body 122 relative to the first connecting section 111 along the screwing-in direction X to the in-place position, and the latching groove 131 is composed of two parts, namely the first convex portion 1311 and the second convex portion 1312, which can disperse the acting force of the latching protrusion 132 on the latching groove 131, thereby prolonging the service life of the latching groove 131. Specifically, the number of the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 may be the same, and the latching grooves 131 formed between the latching protrusions 132 and the first convex portions 1311 and the second convex portions 1312 may be arranged in one-to-one correspondence. Multiple groups of the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 may be arranged along the circumferential direction of the filter bottle assembly 10. Preferably, two groups of the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312 may be arranged oppositely along the circumferential direction of the filter bottle assembly 10, so as to better limit the further rotation of the enclosure body 122 along the screwing-in direction X and hold the enclosure body 122 in the in-place position by the cooperation of these two groups of the latching protrusions 132, the first convex portions 1311 and the second convex portions 1312.

[0042] In an embodiment not shown in the figures, the limiting structure 130 may include a first convex portion 1311, a second convex portion 1312 and at least two latching protrusions 132. The at least two latching protrusions 132 may cooperate with the first convex portion 1311 and the second convex portion 1312 respectively. Thus, when the enclosure body 122 is rotated relative to the first connecting section 111 along the screwing-in direction X to the in-place position, the further rotation of the enclosure body 122 along the screwing-in direction X can be effectively limited, and the enclosure body 122 can be held in the in-place position.

[0043] Further, the first convex portion 1311 and the second convex portion 1312 may protrude from the bottom of the enclosure body 122 in a direction away from the cover body 121. The first convex portion 1311 and the second convex portion 1312 are circumferentially spaced around the enclosure body 122. At least two engaging protrusions 132 may protrude radially outward from the outer edge of the second connecting section 112 and respectively cooperate with the first convex portion 1311 and the second convex portion 1312. It is ensured that when the enclosure body 122 is rotated relative to the first connecting section 111 along the screwing-in direction X to the in-place position, the enclosure body 122 is restricted from continuing to rotate along the screwing-in direction X through the cooperation of the engaging protrusions 132, the first convex portion 1311 and the second convex portion 1312, and the enclosure body 122 is held in the in-place position. Preferably, the engaging protrusions 132 and the first convex portion 1311 and the engaging protrusions 132 and the second convex portion 1312 may be oppositely arranged, ensuring that when the filter bottle assembly 10 is in use, the enclosure body 122 is held in the in-place position.

[0044] The second connecting section 112 may have a stepped portion 1121 protruding radially outward relative to the first connecting section 111. The first convex portion 1311 and the second convex portion 1312 may also protrude from the top of the stepped portion 1121 in a direction toward the cover body 121. The first convex portion 1311 and the second convex portion 1312 are circumferentially spaced around the second connecting section 112. At least two engaging protrusions 132 may protrude from the bottom of the enclosure body 122 in a direction away from the cover body 121 and respectively cooperate with the first convex portion 1311 and the second convex portion 1312. It is ensured that when the enclosure body 122 is rotated relative to the first connecting section 111 along the screwing-in direction X to the in-place position, the enclosure body 122 is restricted from continuing to rotate along the screwing-in direction X through the cooperation of the engaging protrusions 132, the first convex portion 1311 and the second convex portion 1312, and the enclosure body 122 is held in the in-place position. Preferably, the engaging protrusions 132 and the first convex portion 1311 and the engaging protrusions 132 and the second convex portion 1312 may be oppositely arranged, ensuring that when the filter bottle assembly 10 is in use, the enclosure body 122 is held in the in-place position. Of course, it is not excluded that the limiting structure 130 may include the first convex portion 1311 and the engaging protrusions 132 or the engaging protrusions 132 and the second convex portion 1312.

[0045] Refer back again to Figures 1 to 4, the first convex portion 1311 may have a first height H1, and the first height H1 may be 0.6 mm to 0.7 mm. For example, the first length H1 may be 0.6 mm, 0.65 mm, 0.7 mm, etc. When the first height H1 is within this range, it is convenient for the engaging protrusion 132 to extend into the engaging groove 131, and it prevents the engaging protrusion 132 from withdrawing from the engaging groove 131 on its own due to the insufficient height of the first convex portion 1311. It also prevents the situation where it is difficult or even impossible for the engaging protrusion 132 to extend into the engaging groove 131 due to the excessive height of the first convex portion 1311. The optimal length of the first height H1 may be 0.65 mm, so that the cooperation effect between the engaging protrusion 132 and the engaging groove 131 is the best.

[0046] Refer back to again Figures 1 to 4 , the first convex portion 1311 may have a first width D1, and the first width D1 may be 10 mm to 12 mm. For example, the first width D1 may be 10 mm, 11 mm, 12 mm, etc. When the first width D1 is within this range, it has a certain obstruction to the engaging protrusion 132 withdrawing from the engaging groove 131 on its own, and it can effectively ensure the strength of the first convex portion 1311 itself. It prevents the situation where it is difficult for the engaging protrusion 132 to extend into the engaging groove 131 due to the excessive width of the first convex portion 1311. It also prevents the situation where the engaging protrusion 132 withdraws from the engaging groove 131 on its own due to the first convex portion 1311 being too narrow and unable to effectively limit the position of the engaging protrusion 132. The optimal length of the first width D1 may be 11 mm, which can more effectively ensure the strength of the first convex portion 1311 itself and has a certain obstruction to the engaging protrusion 132 withdrawing from the engaging groove 131 on its own.

[0047] Refer to in combination Figure 1 and Figure 4 , the first convex portion 1311 may have a first end face 1311a in the direction away from the lid body 121. The first end face 1311a may be arc-shaped. Understandably, when the first end face 1311a is arc-shaped, the engaging protrusion 132 can smoothly extend into the engaging groove 131 without a large force. The user can be more labor-saving during the process of locking the filter bottle cap 120 and the filter bottle 110, thereby improving the user experience. Of course, the first end face 1311 may also be in other shapes, such as circular, etc.

[0048] Refer to in combination Figures 1 to 4, the second convex portion 1312 may have a second height H2, and the second height H2 may be 2 mm to 2.5 mm. For example, the second height H2 may be 2 mm, 2.25 mm, 2.5 mm, etc. When the second height H2 is within this range, it can effectively prevent the enclosure 122 from continuing to rotate relative to the first connecting section 111 along the screwing-in direction X after being screwed to the in-place position, and prevent the situation where the enclosure 122 continues to rotate relative to the first connecting section 111 along the screwing-in direction X after being screwed to the in-place position due to the insufficient height of the second convex portion 1312. Also, it can prevent the situation where the contact between the second convex portion 1312 and the filter bottle 110 or the filter bottle cap 120 hinders the locking of the filter bottle assembly 10 due to the excessive height of the second convex portion 1312. The optimal length of the second height H2 may be 2.25 mm, which has the best effect of preventing the enclosure 122 from continuing to rotate relative to the first connecting section 111 along the screwing-in direction X after being screwed to the in-place position.

[0049] Referring again to Figures 1 to 4 , the second convex portion 1312 may have a second width D2, and the second width D2 may be 11 mm to 13 mm. For example, the second width D2 may be 11 mm, 12 mm, 13 mm, etc. When the second width D2 is within this range, it has a certain hindrance to the enclosure 122 continuing to rotate relative to the first connecting section 111 along the screwing-in direction X after being screwed to the in-place position, and can effectively ensure the strength of the second convex portion 1312 itself, prevent the waste of materials due to the excessive width of the second convex portion 1312, and prevent the second convex portion 1312 from being damaged due to its excessive narrowness. The optimal length of the second width D2 may be 12 mm, which can more effectively have a certain hindrance to the enclosure 122 continuing to rotate relative to the first connecting section 111 along the screwing-in direction X after being screwed to the in-place position, and can effectively ensure the strength of the second convex portion 1312 itself.

[0050] Referring to Figures 2 to 4, the second convex portion 1312 can be funnel-shaped. This funnel shape is a shape that gradually shrinks from a wider end to a narrower end. Specifically, the end of the second convex portion 1312 close to the engaging convex block 132 is narrower, which facilitates the cooperation with the engaging convex block 132 and saves materials. The end of the second convex portion 1312 away from the engaging convex block 132 is wider, so as to increase the contact area between the second convex portion 1312 and the bottom or the step portion 1121 of the enclosure body 122, thereby improving the connection firmness. In this way, the cooperation effect between the second convex portion 1312 and the engaging convex block 132 can be better, so as to effectively prevent the situation that the enclosure body 122 continues to rotate after being rotated to the in-place position relative to the first connecting section 111 along the screwing-in direction X. Further, a straight-edge section can be provided on the side surface of the second convex portion 1312 close to the engaging convex block 132, so as to make the cooperation effect between the second convex portion 1312 and the engaging convex block 132 better. It can be understood that the funnel shape of the second convex portion 1312 can make the second convex portion 1312 itself have higher strength and is not easily damaged. Of course, the shape of the second convex portion 1312 can also be other shapes, such as square, etc.

[0051] With reference to Figures 1 to 4 , the engaging convex block 132 can have a third height H3, and the third height H3 can be 3 mm to 5 mm. For example, the third height H3 can be 3 mm, 4 mm, 5 mm, etc. When the third height H3 is within this range, the engaging convex block 132 can be effectively at least partially inserted into the locking groove 131, thereby preventing the enclosure body 122 from continuing to rotate relative to the first connecting section 111 along the screwing-in direction X to the in-place position, and preventing the situation that the engaging convex block 132 cannot be inserted into the locking groove 131 due to insufficient height, and also preventing the situation that the engaging convex block 132 hinders the cooperation between the engaging convex block 132 and the locking groove 131 due to excessive height. The optimal length of the third height H3 can be 4 mm, which can more effectively make the engaging convex block 132 at least partially inserted into the locking groove 131, so as to best prevent the enclosure body 122 from continuing to rotate relative to the first connecting section 111 along the screwing-in direction X to the in-place position.

[0052] With reference to again Figures 1 to 4 , the engaging convex block 132 can have a third width D3, and the third width D3 can be 3 mm to 5 mm. For example, the third width D3 can be 3 mm, 4 mm, 5 mm, etc. When the third width D3 is within this range, the strength of the engaging convex block 132 can be effectively guaranteed, so as to prevent the situation that the engaging convex block 132 is too narrow and easily damaged, and also prevent the situation that the engaging convex block 132 cannot be completely inserted into the locking groove 131 due to being too wide. The optimal length of the third width D3 can be 4 mm, which can more effectively guarantee the strength of the engaging convex block 132 itself, and effectively prevent the situation that the engaging convex block 132 is easily damaged and the situation that the engaging convex block 132 cannot be completely inserted into the locking groove 131.

[0053] Refer to again Figures 1 to 4 The longitudinal cross-sectional shape of the engaging protrusion 132 can be square. In this way, the cooperation effect between the engaging protrusion 132 and the engaging groove 131 can be better, so as to effectively limit the further rotation of the enclosure 122 relative to the first connecting section 111 along the screwing-in direction X after reaching the in-place position, and keep the enclosure 122 at the in-place position, and it is also easy to process. Of course, the longitudinal cross-sectional shape of the engaging protrusion 132 can also be other shapes, such as circular, etc.

[0054] Refer to Figures 1 to 5 According to another aspect of the present invention, a water purifier is provided. The water purifier may include a filter element (not shown in the figure), a machine body 20, and the filter bottle assembly 10 as described above. The filter element can be arranged in the filter bottle 110 through an opening. The filter bottle assembly 10 can be arranged in the machine body 20. Due to the above beneficial effects of the filter bottle assembly 10 as described above, the water purifier including the filter bottle assembly 10 as described above also has the above beneficial effects, which will not be repeated here one by one.

[0055] Refer to Figures 1 to 5 The cover body 121 or the enclosure 122 may have a first locking mark 140. The machine body 20 may have a second locking mark 210. When the enclosure 122 rotates relative to the first connecting section 111 along the screwing-in direction X to the in-place position, the first locking mark 140 and the second locking mark 210 can be aligned. The user can judge whether the filter bottle cap 120 is screwed in place relative to the filter bottle 110 by observing the relative positions of the first locking mark 140 and the second locking mark 210. By combining the two methods of setting the limiting structure 130 and observing the relative positions of the first locking mark 140 and the second locking mark 210 to remind the user whether the filter bottle cap 120 is screwed in place relative to the filter bottle 110, it can better prevent the loosening phenomenon of the two due to the user's unawareness that the filter bottle cap 120 is not screwed in place relative to the filter bottle 110, prevent water leakage, and prevent the enclosure 122 from rotating relative to the first connecting section 111 along the screwing-out direction Y due to the impact force of the water in the filter bottle assembly 10 when the filter bottle cap 120 is screwed in place relative to the filter bottle 110, resulting in the loosening phenomenon of the filter bottle cap 120 relative to the filter bottle 110. At the same time, it prevents the phenomenon of overloading the thread and causing damage due to the user's continuous forceful tightening after the filter bottle cap 120 is screwed in place relative to the filter bottle 110, thereby improving the user experience.

[0056] Specifically, the first locking mark 140 and the second locking mark 210 can be marking symbols or indicator lights respectively located on the lid body 121 or the enclosure body 122 and on the machine body 20. When the filter bottle cap 120 is screwed in place relative to the filter bottle 110, the relative position of the marking symbols or the indicator lights can emit an indication light to prompt the user that the filter bottle cap 120 is screwed in place relative to the filter bottle 110.

[0057] In an embodiment not shown in the figure, an infrared sensor can be provided on the water purifier to prompt the user that the filter bottle cap 120 is screwed in place relative to the filter bottle 110. The infrared sensor can include a transmitter and a receiver. The transmitter and the receiver can be respectively arranged on the lid body 121 or the enclosure body 122 and on the machine body 20. When the filter bottle cap 120 is screwed in place relative to the filter bottle 110, the receiver receives the signal emitted by the transmitter and gives a prompt, and the prompt can be a prompt sound effect or a prompt light. It can be understood that the first locking mark 140 and the second locking mark 210 can be any structure that can send a prompt message to the user.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front", "rear", "upper", "lower", "left", "right", "lateral", "vertical", "perpendicular", "horizontal" and "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0059] For the convenience of description, regional relative terms such as "above...", "above...", "on the upper surface of...", "above" etc. can be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that the regional relative terms not only include the orientation of the components described in the figure, but also include different orientations during use or operation. For example, if the components in the drawing are inverted as a whole, the component "above other components or features" or "above other components or features" will include the situation where the component is "below other components or structures" or "below other components or structures". Thus, the exemplary term "above..." can include two orientations of "above..." and "below...". In addition, these components or features can also be positioned at other different angles (such as rotated 90 degrees or other angles), and this article intends to include all these situations.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, components, assemblies, and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] The present utility model has been illustrated by the above embodiments. However, it should be understood that the above embodiments are only for the purpose of example and illustration, and are not intended to limit the present utility model to the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

Claims

1. A filter bottle assembly, comprising a filter bottle and a filter bottle cap. One end of the filter bottle is open. The filter bottle cap has a cap body and an enclosure body axially extending from the periphery of the cap body. The filter bottle has a first connection section at the end where the opening is located. The enclosure body is threadedly connected to the first connection section so that the cap body covers the opening. It is characterized in that, The filter bottle is provided with a second connection section below the first connection section. The second connection section is connected to the bottom of the enclosure body through a limiting structure. The limiting structure is configured such that when the enclosure body rotates relative to the first connection section along the screwing-in direction to the in-place position, the limiting structure restricts the enclosure body from continuing to rotate along the screwing-in direction and holds the enclosure body in the in-place position.

2. The filter bottle assembly according to claim 1, characterized in that, The limiting structure includes a latching groove and a latching protrusion. When the enclosure body rotates relative to the first connection section along the screwing-in direction to the in-place position, at least a part of the latching protrusion extends into the latching groove.

3. The filter bottle assembly according to claim 2, characterized in that, The bottom of the enclosure body protrudes away from the cover body to form a first protrusion and a second protrusion. The latching groove is formed between the first protrusion and the second protrusion; the latching protrusion protrudes radially outward from the outer edge of the second connection section.

4. The filter bottle assembly according to claim 2, wherein The second connection section has a stepped portion protruding radially outward relative to the first connection section. The top of the stepped portion protrudes away from the cover body to form a first protrusion and a second protrusion. The latching groove is formed between the first protrusion and the second protrusion; the latching protrusion protrudes away from the cover body from the bottom of the enclosure body.

5. The filter bottle assembly according to claim 3 or 4, characterized in that, The first protrusion has a first height H1, and the first height H1 is 0.6 mm to 0.7 mm.

6. The filter bottle assembly according to claim 3 or 4, characterized in that The first protrusion has a first width D1, and the first width D1 is 10 mm to 12 mm.

7. The filter bottle assembly according to claim 3 or 4, characterized in that, The first protrusion has a first end face in the direction away from the cover body, and the first end face is arc-shaped.

8. The filter bottle assembly according to claim 3 or 4, characterized in that, The second protrusion has a second height H2, and the second height H2 is 2 mm to 2.5 mm.

9. The filter bottle assembly according to claim 3 or 4, characterized in that The second protrusion has a second width D2, and the second width D2 is 11 mm to 13 mm.

10. The filter bottle assembly according to claim 3 or 4, characterized in that, The second protrusion is funnel-shaped.

11. The filter bottle assembly according to claim 2, characterized in that, The latching protrusion has a third height H3, and the third height H3 is 3 mm to 5 mm.

12. The filter bottle assembly according to claim 2, wherein, The latching protrusion has a third width D3, and the third width D3 is 3 mm to 5 mm.

13. The filter bottle assembly according to claim 2, wherein The longitudinal cross-sectional shape of the latching protrusion is square.

14. A water purifier, characterized in that, It includes a filter element, a machine body, and a filter bottle assembly as described in any one of claims 1-13. The filter element is arranged in the filter bottle from the opening, and the filter bottle assembly is arranged in the machine body.

15. The water purifier according to claim 14, characterized in that, The cover body or the enclosure body has a first locking mark, and the machine body has a second locking mark. When the enclosure body rotates relative to the first connection section along the screwing-in direction to the in-place position, the first locking mark is aligned with the second locking mark.

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