CN220937700U

CN220937700U - Water tank and desk type water purifying and drinking machine

Info

Publication number: CN220937700U
Application number: CN202322641947.8U
Authority: CN
Inventors: 朱泽春; 王志阳; 周涛
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-05-14
Anticipated expiration: 2033-09-27

Abstract

The application discloses a water tank and a table type water purifying and drinking machine, wherein the water tank comprises a tank body, a ball cover and a floating ball, a positioning part is arranged in the tank body, the ball cover is detachably positioned on the positioning part and matched with the tank body to form a floating cavity, the ball cover is provided with a water passing hole for communicating the floating cavity with the inner cavity of the tank body, the floating ball is arranged in the floating cavity and can move up and down in the floating cavity, the ball cover and/or the tank body is provided with anti-sticking ribs, and the anti-sticking ribs are propped against the floating ball to enable an anti-sticking gap to be formed between the floating ball and the ball cover and/or the tank body. The existence of the anti-sticking gap greatly reduces the risk of generating water films between the floating ball and the ball cover and the box body respectively, and further effectively prevents the floating ball from blocking up and down floating of the floating ball due to the fact that the water films are attached to and tightly adhered to the wall of the ball cover or the box body, and ensures the effectiveness and the accuracy of water level detection of the floating ball.

Description

Water tank and desk type water purifying and drinking machine

Technical Field

The application relates to the technical field of water purifying equipment, in particular to a water tank and a table type water purifying and drinking machine.

Background

Along with the promotion of economic development and living standard, consumers pay more and more attention to healthy water and drinking water, and the use requirement on water is also higher and higher. Table-type water purifying and drinking machines are accepted and favored by more and more consumers because of the advantages of water filtration, smaller size, convenient use and the like.

The table type water purifying dispenser generally includes a body and a water tank installed at a rear side of the body for storing tap water as raw water of a filtering structure. For the water level in the control water tank of being convenient for, can install water level detection structure in the water tank generally, and water level detection structure is mostly the floater, about the mounting means of floater, specifically, be provided with vertical draw-in groove in the water tank generally, the floater is installed in the draw-in groove, the plastic lid is installed at the top interference of draw-in groove in order to prevent that the floater from floating from the draw-in groove, however, in actual working process, cause the floater to paste tightly on the draw-in groove inner wall because of producing the water film viscidity easily between floater and the draw-in groove inner wall, thereby there is the unable come-up of floater to lead to the risk that the water level detects inefficacy, moreover, the plastic lid only through the interference fit assembly with the draw-in groove, there is great risk that drops.

Disclosure of utility model

The application provides a water tank and a table type water purifying and drinking machine, which aim to solve at least one technical problem among the technical problems.

The technical scheme adopted by the application is as follows:

The utility model provides a water tank, includes box, spherical cap and floater, be provided with location portion in the box, spherical cap detachably locate location portion and with the box cooperation forms the floating chamber, the spherical cap be equipped with the floating chamber with the water hole of box inner chamber intercommunication, the floater is located the floating intracavity and can be in the floating intracavity reciprocates, the spherical cap and/or the box is provided with antiseized protruding muscle, antiseized protruding muscle with the floater offsets and makes the floater with the spherical cap and/or form antiseized clearance between the box.

The water tank in the application has the following additional technical characteristics:

The anti-sticking convex ribs extend along the vertical direction, and the anti-sticking convex ribs arranged on the ball cover and the anti-sticking convex ribs arranged on the box body are respectively positioned on two sides of the floating ball opposite to each other.

The ball cover and/or the box body are/is provided with limiting ribs, the limiting ribs extend along the vertical direction, two limiting ribs are positioned on two opposite sides of the floating ball to realize horizontal limiting, and the anti-sticking protruding rib is positioned between the two limiting ribs.

The ball cover is provided with at least two anti-sticking convex ribs which are arranged at intervals, the box body is provided with at least two anti-sticking convex ribs which are arranged at intervals, and the water passing holes are arranged between the two anti-sticking convex ribs which are arranged on the ball cover from top to bottom at intervals.

The bottom of the ball cover is provided with a supporting convex rib, and the ball cover is supported on the bottom wall of the water tank through the supporting convex rib.

The box sets up spacing protruding muscle, the spherical cap is located when the location portion, spacing protruding muscle with the top surface of spherical cap offsets and restricts the spherical cap upward movement.

The ball cover comprises a ball cover front wall, a ball cover top wall, a ball cover bottom wall and a ball cover side wall, wherein the ball cover top wall, the ball cover bottom wall and the ball cover side wall are arranged around the ball cover front wall, and the ball cover is vertically arranged on the positioning part so that the rear side of the ball cover is matched with the inner wall of the box body to form the floating cavity.

The locating part includes two locating plates that extend along vertical direction, locating plate one end with the inner wall of box links to each other, the cross section structure of locating plate is L type structure, two locating part with the box encloses into upward open-ended location chamber together, makes the spherical cap from top to bottom installs in the location intracavity, water hole set up in the front wall, two form between the locating plate dodges water hole's breach.

The height of the ball cover is higher than that of the positioning plate, the ball cover is provided with a limiting step which extends horizontally, and the limiting step is limited with the top stop of the positioning plate; and/or the ball cover is provided with a clamping rib extending along the vertical direction, and the clamping rib is propped against the inner surface of the positioning plate; and/or the ball cover is provided with a positioning hole, an elastic plug is arranged in the positioning hole, and the ball cover abuts against the inner surface of the positioning plate through the elastic plug.

The application provides a table type water purifying and drinking machine, which comprises a machine body and a water tank, wherein the water tank is arranged on the machine body.

By adopting the technical scheme, the application has the following technical effects:

1. In the water tank provided by the application, the tank body and the ball cover are matched to form the floating cavity for installing the floating ball, and the ball cover is provided with the water through hole so that water in the water tank enters the floating cavity through the water through hole to enable the floating ball to float up and down. The ball cover and the box body are provided with the anti-sticking convex ribs, the anti-sticking convex ribs are propped against the floating ball to form anti-sticking gaps between the floating ball and the ball cover and between the floating ball and the box body, the risk of generating water films between the floating ball and the ball cover and between the floating ball and the box body is greatly reduced, and further the floating ball is effectively prevented from being blocked from floating up and down due to the fact that the water films are attached to and tightly adhered to the wall of the ball cover or the box body, and the effectiveness and the accuracy of water level detection of the floating ball are guaranteed.

2. As a preferable mode of the application, the anti-sticking convex rib extends along the vertical direction and is matched with the floating direction of the floating ball, so as to play a role in guiding the floating ball to float up and down; the anti-sticking convex ribs arranged on the ball cover and the anti-sticking convex ribs arranged on the box body are respectively positioned on two sides of the floating ball opposite to each other, so that double-side anti-sticking of the floating ball is realized, and the effect is better.

3. As a preferable mode of the application, the limit ribs extend along the vertical direction, and the two limit ribs realize horizontal limit on two opposite sides of the floating ball, thereby effectively preventing the floating ball from floating left and right in the floating cavity to influence the accuracy of water level detection; the anti-sticking convex ribs are positioned between the two limiting ribs and can be matched with the limiting ribs to limit the floating ball at the periphery of the floating ball, so that the floating ball can keep a floating state of being vertically and directly moved as far as possible.

4. As an optimal mode of the application, the ball cover is provided with at least two anti-sticking convex ribs which are arranged at intervals, the box body is provided with at least two anti-sticking convex ribs which are arranged at intervals, the anti-sticking effect is better due to the arrangement of the anti-sticking convex ribs, and the water passing holes are arranged between the two anti-sticking convex ribs arranged on the ball cover, so that the water passing holes are opened in the anti-sticking gap, and water in the box body can easily enter the floating cavity.

5. As a preferable mode of the application, the bottom of the spherical cover is provided with the supporting convex rib, the spherical cover is supported on the bottom wall of the water tank through the supporting convex rib, the risk of forming a water film between the bottom surface of the spherical cover and the bottom wall of the tank body is reduced, and further, the difficulty of installing the spherical cover towards the positioning part is prevented from being increased due to the existence of the water film.

6. As a preferred mode of the application, the box body is provided with the limit convex rib, when the spherical cover is positioned on the positioning part, the limit convex rib is propped against the top surface of the spherical cover to limit the spherical cover to move upwards, on one hand, the spherical cover is limited by the propping of the limit convex rib to prevent the spherical cover from being separated from the positioning part due to buoyancy, and on the other hand, the technical indication that the spherical cover is assembled in place on the positioning part can be given by the propping of the limit convex rib and the top surface of the spherical cover.

7. As a preferable mode of the application, the positioning part comprises two positioning plates, the two positioning plates are matched to form a positioning cavity, a gap avoiding the water passing hole is formed between the two positioning plates, on one hand, water is convenient to enter the floating cavity, on the other hand, the deformability of the positioning part is improved, so that the ball cover and the positioning plates form interference fit to improve the positioning reliability of the ball cover, and the risk of releasing the ball cover from the positioning part is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

Fig. 1 is a cross-sectional view of a water tank provided by the present application;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is a second cross-sectional view of the water tank provided by the present application;

FIG. 4 is an enlarged view of a portion of the structure at B in FIG. 3;

FIG. 5 is a schematic view of a ball cover according to the present application;

FIG. 6 is a schematic diagram of a ball cover according to the present application;

fig. 7 is a schematic structural view of a ball cover according to the present application;

FIG. 8 is a cross-sectional view of a case provided by the present application;

FIG. 9 is an enlarged view of a portion of the structure at C in FIG. 8;

FIG. 10 is an assembled view of the ball cover and float provided by the present application;

Fig. 11 is a third cross-sectional view of the water tank provided by the present application;

Fig. 12 is an assembly view of a table-type water purifying dispenser according to the present application.

List of parts and reference numerals:

the box body 1, the positioning part 11, the positioning plate 111, the positioning cavity 112, the notch 113 and the limiting convex rib 12;

2 ball covers, 21 water holes, 22 limit ribs, 23 support ribs, 24 limit steps, 25 clamping ribs, 26 positioning holes, 271 ball cover front walls, 272 ball cover top walls, 273 ball cover bottom walls and 274 ball cover side walls;

3, floating ball;

4, floating cavity;

5, sticking-proof convex ribs;

6, an elastic plug;

7 machine body.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the embodiment of the application, a water tank and a table type water purifying and drinking machine are provided, and the following matters provided by the application are all described on the basis of the structure of the illustrated product for convenience of explanation and understanding. It will of course be appreciated by those skilled in the art that the above-described construction is provided as a specific example and illustrative only and is not intended to constitute a specific limitation on the scope of the application.

Referring to fig. 1 to 11, the water tank provided by the application comprises a tank body 1, a ball cover 2 and a floating ball 3, wherein a positioning part 11 is arranged in the tank body 1, the ball cover 2 is detachably positioned on the positioning part 11 and is matched with the tank body 1 to form a floating cavity 4, the ball cover 2 is provided with a water passing hole 21 for communicating the floating cavity 4 with the inner cavity of the tank body 1, the floating ball 3 is arranged in the floating cavity 4 and can move up and down in the floating cavity 4, the ball cover 2 and/or the tank body 1 is provided with an anti-sticking convex rib 5, and the anti-sticking convex rib 5 is propped against the floating ball 3 to form an anti-sticking gap between the floating ball 3 and the ball cover 2 and/or the tank body 1.

In the water tank provided by the application, the tank body 1 and the ball cover 2 are matched to form the floating cavity 4 for installing the floating ball 3, and the ball cover 2 is provided with the water through hole 21 so that water in the water tank enters the floating cavity 4 through the water through hole 21 and then the floating ball 3 floats up and down. In a preferred embodiment, the ball cover 2 is provided with an anti-sticking convex rib 5, the anti-sticking convex rib 5 is propped against the floating ball 3 to form an anti-sticking gap between the floating ball 3 and the ball cover 2, and the anti-sticking gap greatly reduces the risk of generating a water film between the floating ball 3 and the ball cover 2, so that the floating ball 3 is effectively prevented from being blocked from floating up and down due to the fact that the water film is stuck and stuck on the wall of the ball cover 2, and the effectiveness and the accuracy of water level detection of the floating ball 3 are ensured. In another preferred embodiment, the box 1 is provided with anti-sticking ribs 5, and anti-sticking gaps are formed between the box 1 of the floating ball 3 by the anti-sticking ribs 5 and the floating ball 3, so that the risk of generating a water film between the floating ball 3 and the box 1 is greatly reduced, further, the floating ball 3 is effectively prevented from being blocked from floating up and down due to the fact that the water film is stuck on the wall of the box 1, and the effectiveness and the accuracy of water level detection of the floating ball 3 are ensured.

As a preferred embodiment of the present application, as shown in fig. 4, 6, 8 and 9, the anti-sticking ribs 5 extend in a vertical direction, and the anti-sticking ribs 5 provided on the ball cover 2 and the anti-sticking ribs 5 provided on the case 1 are respectively located at two opposite sides of the floating ball 3. As can be appreciated by those skilled in the art, the anti-sticking ribs 5 extend in the vertical direction, are matched with the floating direction of the floating ball 3, play a role in guiding the floating ball 3 to float up and down, and meanwhile, do not block the water flow in the floating cavity 4 in the vertical direction; the anti-sticking convex ribs 5 arranged on the ball cover 2 and the anti-sticking convex ribs 5 arranged on the box body 1 are respectively positioned on two sides of the floating ball 3 opposite to each other, so that double-side anti-sticking of the floating ball 3 is realized, and the effect is better.

As a preferred embodiment, as shown in fig. 6 and 10, the ball cover 2 is provided with a limiting rib 22, the limiting ribs 22 extend in a vertical direction, two limiting ribs 22 realize horizontal limiting on two opposite sides of the floating ball 3, and the anti-sticking protruding rib 5 is located between the two limiting ribs 22. As can be appreciated by those skilled in the art, the limit ribs 22 extend in the vertical direction, and the two limit ribs 22 realize horizontal limit on two opposite sides of the floating ball 3, so that the floating ball 3 is effectively prevented from floating left and right in the floating cavity 4 to influence the accuracy of water level detection; the anti-sticking convex ribs 5 are positioned between the two limiting ribs 22, and can cooperate with the limiting ribs 22 to limit the floating ball 3 at the periphery thereof, so that the floating ball 3 can keep a straight up and down floating state as far as possible. As an alternative embodiment, the limit ribs 22 may be disposed on the case 1 and disposed on both sides of the anti-sticking ribs 5 disposed on the case 1, and the limit ribs 22 may extend in the vertical direction; as another alternative embodiment, one of the limit ribs 22 may be provided on the case 1, and the other limit rib 22 may be provided on the ball cover 2 such that the limit rib 22 extends in the vertical direction.

As a preferred embodiment, as shown in fig. 6 and 9, the ball cover 2 is provided with at least two anti-sticking ribs 5 arranged at intervals, the box 1 is provided with at least two anti-sticking ribs 5 arranged at intervals, and a plurality of water passing holes 21 are arranged between the two anti-sticking ribs 5 arranged on the ball cover 2 at intervals from top to bottom. The embodiment that spherical cap 2 set up two antiseized protruding muscle 5, box 1 set up two antiseized protruding muscle 5 is schematically depicted in the figure, and a plurality of antiseized protruding muscle 5's setting, antiseized effect is better, and water hole 21 arranges between two antiseized protruding muscle 5 that spherical cap 2 set up for water hole 21 opening is located antiseized clearance, and the surface structure of floater 3 can not be to water hole 21 shutoff, does benefit to the light entering of water in the box 1 in the floating chamber 4.

As a preferred embodiment, as shown in fig. 2 and 7, the bottom of the ball cover 2 is provided with a supporting rib 23, the ball cover 2 is supported on the bottom wall of the water tank by the supporting rib 23, so as to reduce the risk of forming a water film between the bottom surface of the ball cover 2 and the bottom wall of the tank 1, and further prevent the difficulty of installing the ball cover 2 towards the positioning part 11 due to the existence of the water film. In order to ensure the stabilizing effect of the support of the ball cover 2, two support ribs 23 may be provided at intervals at the bottom of the ball cover 2.

As a preferred embodiment, as shown in fig. 4 and 9, the case 1 is provided with a limiting rib 12, and when the ball cover 2 is positioned on the positioning portion 11, the limiting rib 12 abuts against the top surface of the ball cover 2 to limit the ball cover 2 from moving upwards. On the one hand, the ball cover 2 is limited by the abutting of the limiting convex rib 12, so that the ball cover 2 is prevented from being separated from the positioning part 11 due to buoyancy, on the other hand, in the process of installing the ball cover 2 on the positioning part 11, structural collision sound is generated when the limiting convex rib 12 is in contact with the top surface of the ball cover 2, and therefore, the technical teaching that the ball cover 2 is assembled in place on the positioning part 11 can be given by the abutting of the limiting convex rib 12 and the top surface of the ball cover 2.

As to the specific structure of the spherical cap 2, as a preferred embodiment, as shown in fig. 2, 4 and 5 to 7, the spherical cap 2 includes a spherical cap front wall 271, and a spherical cap top wall 272, a spherical cap bottom wall 273 and a spherical cap side wall 274 disposed around the spherical cap front wall 271, and the spherical cap 2 is vertically mounted on a positioning portion 11 such that the rear side of the spherical cap 2 cooperates with the inner wall of the case 1 to form the floating chamber 4. The ball cover 2 comprises a ball cover front wall 271, a ball cover top wall 272, a ball cover bottom wall 273 and a ball cover side wall 274, and the whole structure is concave, so that a person can easily distinguish the installation direction of the ball cover 2.

Further, as to the specific structure of the positioning portion 11, as shown in fig. 9, the positioning portion 11 includes two positioning plates 111 extending along the vertical direction, one end of each positioning plate 111 is connected to the inner wall of the case 1, the cross section of each positioning plate 111 is configured as an L-shaped structure, two positioning portions 11 and the case 1 enclose an upward opening positioning cavity 112 together, so that the ball cover 2 is installed in the positioning cavity 112 from top to bottom, the water passing hole 21 is provided in the front wall, and a gap 113 avoiding the water passing hole 21 is formed between the two positioning plates 111. As can be appreciated by those skilled in the art, the positioning portion 11 includes two positioning plates 111, the two positioning plates 111 cooperate to form a positioning cavity 112, a gap 113 avoiding the water passing hole 21 is formed between the two positioning plates 111, so that water is conveniently introduced into the floating cavity 4 on one hand, and the deformability of the positioning portion 11 is improved on the other hand, so that the ball cover 2 and the positioning plates 111 can form interference fit to improve the positioning reliability of the ball cover 2, and the risk of releasing the ball cover 2 from the positioning portion 11 is reduced.

As a preferred embodiment, as shown in fig. 2 and 7, the height of the ball cover 2 is higher than that of the positioning plate 111, and the ball cover 2 is provided with a horizontally extending limit step 24, and the limit step 24 is limited by a top stop of the positioning plate 111. The height of the ball cover 2 is higher than that of the positioning plate 111, so that a user can conveniently hold the ball cover 2 to be exposed out of the positioning cavity 112 for disassembly and assembly, the limiting step 24 is arranged to conveniently position the ball cover 2, and when the limiting step 24 abuts against the top of the positioning plate 111, the ball cover 2 can be determined to be assembled in place.

As a preferred embodiment, as shown in fig. 2 and 5, the ball cover 2 is provided with a catching rib 25 extending in a vertical direction, and the catching rib 25 abuts against an inner surface of the positioning plate 111. On the one hand, the ball cover 2 can tightly support the positioning plate 111 through the clamping ribs 25, so that the limiting strength of the positioning plate 111 to the ball cover 2 is improved, and the difficulty of floating the ball cover 2 is further increased; on the other hand, the setting of joint strip 25 can also reduce the risk that produces the water film between ball lid 2 and locating plate 111, and then helps reducing the degree of difficulty of ball lid 2 dismouting.

As a preferred embodiment, as shown in fig. 5 and 11, the ball cover 2 is provided with a positioning hole 26, an elastic plug 6 is installed in the positioning hole 26, and the ball cover 2 abuts against the inner surface of the positioning plate 111 through the elastic plug 6. The ball cover 2 is propped against the positioning plate 111 through the elastic plug 6, the effect of interference fit between the ball cover 2 and the positioning plate 111 can be improved by utilizing the elastic deformation of the elastic plug 6, and the ball cover 2 can be elastically buffered through the elastic plug 6, so that abnormal sound can be prevented from being generated by shaking in the box body 1. Specifically, the elastic plug 6 may employ a silicone plug or the like.

The table type water purifying and drinking machine provided by the application, as shown in fig. 12, comprises a machine body 7 and the water tank, wherein the water tank is arranged on the machine body 7.

It should be noted that, since the table-type water purifying and drinking machine provided by the application includes the water tank in any one of the embodiments, the water tank has the beneficial effects that the table-type water purifying and drinking machine provided by the application includes, and no description is given here.

The application can be realized by adopting or referring to the prior art at the places which are not described in the application.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. The utility model provides a water tank, its characterized in that includes box, spherical cap and floater, be provided with location portion in the box, spherical cap detachably locate location portion and with the box cooperation forms the floating chamber, the spherical cap be equipped with will the floating chamber with the water hole of box inner chamber intercommunication, the floater is located the floating intracavity and can be in the floating intracavity reciprocates, spherical cap and/or the box is provided with antiseized protruding muscle, antiseized protruding muscle with the floater offsets and makes the floater with spherical cap and/or form antiseized clearance between the box.

2. The water tank of claim 1 wherein the water tank is configured to provide a water supply,

3. The water tank of claim 2 wherein the water tank is configured to provide a water supply to the water tank,

4. The water tank of claim 2 wherein the water tank is configured to provide a water supply to the water tank,

5. The water tank of claim 1 wherein the water tank is configured to provide a water supply,

6. The water tank of claim 1 wherein the water tank is configured to provide a water supply,

7. The water tank of any one of claims 1-6 wherein,

8. The water tank of claim 7 wherein the water tank is configured to provide a water supply,

9. The water tank of claim 8 wherein the water tank is configured to provide a water supply to the water tank,

The height of the ball cover is higher than that of the positioning plate, the ball cover is provided with a limiting step which extends horizontally, and the limiting step is limited with the top stop of the positioning plate;

And/or the ball cover is provided with a clamping rib extending along the vertical direction, and the clamping rib is propped against the inner surface of the positioning plate;

And/or the ball cover is provided with a positioning hole, an elastic plug is arranged in the positioning hole, and the ball cover abuts against the inner surface of the positioning plate through the elastic plug.

10. A bench top water purifier comprising a body and a water tank as claimed in any one of claims 1 to 9, said water tank being mounted to said body.