CN219206567U

CN219206567U - Water tank assembly for household appliance and household appliance

Info

Publication number: CN219206567U
Application number: CN202320050978.3U
Authority: CN
Inventors: 王行飞
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-20
Anticipated expiration: 2033-01-05

Abstract

A water tank assembly for a household appliance, comprising: a water tank; the mounting box is arranged on the inner side surface of the water tank; the liquid level indicating device comprises a buoy which is vertically movably accommodated in the installation box and a magnetic piece arranged on the buoy; the method is characterized in that: the installation box is provided with a bottom wall which extends horizontally or obliquely, the bottom wall of the installation box is positioned above the bottom wall of the water tank and is provided with a guide hole penetrating through the wall thickness of the water tank, the liquid level indicating device further comprises a floating rod which can vertically movably penetrate through the guide hole, the buoy is positioned on the moving track of the floating rod, and therefore the floating piece is not easy to be blocked when the water tank assembly of the household appliance is at a low water level. And to a home appliance to which the foregoing water tank assembly for a home appliance is applied.

Description

Water tank assembly for household appliance and household appliance

Technical Field

The utility model relates to a household appliance, in particular to a water tank assembly for the household appliance, and also relates to the household appliance with the water tank assembly for the household appliance.

Background

In household appliances such as drinking water appliances represented by water dispensers, water purifying machines, cooking appliances represented by steam boxes, sterilizing cabinets, cleaning appliances represented by mopping machines, steam mops, and laundry care appliances represented by ironing machines, water tanks are a common type of water storage container. In order to facilitate sensing of the amount of water stored in the tank, existing tanks are typically provided with a water level monitoring device.

The Chinese patent with patent number ZL202220503716.3 (bulletin number CN 217185695U) discloses a water purifier, which comprises a water tank, a floating ball mounting groove, a floating ball and a magnetic inductor; the floating ball installation groove is arranged in the water tank and comprises a vertically arranged accommodating cavity, the floating ball is arranged in the accommodating cavity, the accommodating cavity is communicated with the space in the water tank, and the floating ball floats up and down along with the change of the liquid level in the water tank; an induction magnet is arranged on the floating ball; the magnetic inductor is used for inducing an induction magnet in the floating ball.

Another example is that chinese utility model patent with patent number 201010228249.X (CN 101904685B) discloses an electric steamer water tank structure with water level warning prompt, including a water storage tank, its characterized in that: the water storage tank is internally provided with a buoy for measuring the water level of the water storage tank, the buoy is provided with a magnet, a reed pipe is arranged at a position corresponding to the magnet of the buoy, and a signal output end of the reed pipe is connected with an external alarm circuit.

Above-mentioned two kinds of water tanks are all through setting up the buoy that has magnet in the water tank inside, float from top to bottom along with the liquid level change of water tank inside through the buoy to detect the position of buoy and detect the water level in the water tank through the sensor. However, due to the fact that the density of the magnet is large, when the water level in the water tank is low, the buoy is heavy, and the clamping phenomenon is easy to occur, so that the accuracy of low water level detection in the water tank is affected.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a water tank assembly for a household appliance, which is not easy to be jammed by a floating member at a low water level, aiming at the state of the art.

A second technical problem to be solved by the present utility model is to provide a household appliance to which the aforementioned water tank assembly for a household appliance is applied, aiming at the state of the art described above.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a water tank assembly for a household appliance, comprising:

a water tank;

the mounting box is arranged on the inner side surface of the water tank;

the liquid level indicating device comprises a buoy which is vertically movably accommodated in the installation box and a magnetic piece arranged on the buoy;

the method is characterized in that: the mounting box is provided with a bottom wall which extends horizontally or obliquely, the bottom wall of the mounting box is positioned above the bottom wall of the water tank and is provided with a guide hole penetrating through the wall thickness of the mounting box,

and the liquid level indicating device also comprises a floating rod which can vertically move and is penetrated in the guide hole, and the buoy is positioned on the moving track of the floating rod.

When the water tank is at the empty water level, the upper end of the floating rod is contacted or connected with the buoy, or the floating rod is positioned below the buoy, so that the floating rod needs to move upwards for a certain distance and then is contacted with the buoy.

The water tank assembly of the household appliance is provided with the installation box through the inner side surface of the water tank, the bottom wall of the installation box is provided with the guide hole penetrating through the wall thickness of the installation box, the liquid level indicating device comprises a buoy which can be accommodated in the installation box in a vertically movable mode, a magnetic piece arranged on the buoy and a floating rod which can be vertically movably arranged in the guide hole, the buoy is enabled to move upwards in the water tank, the floating rod cannot overturn under the constraint of the guide hole, in addition, the buoy is arranged on the moving track of the floating rod, so that when the water tank is at a low water level, the density of the floating rod is smaller and floats more easily, the buoy can be pushed upwards, the buoy can be smoothly moved upwards, and the phenomenon of clamping stagnation of the buoy is not easy to occur.

In order to facilitate water inlet and water outlet inside the installation box, at least two inwards-protruding protrusions are arranged on the inner wall of the guide hole at intervals along the circumferential direction, a guide area for the floating rod to penetrate is defined in the middle of the guide hole, and a water passing gap is formed between two adjacent protrusions.

In order to reduce the area of contact of the float rod and the buoy, the float rod comprises a first section positioned at the top and a second section connected with the lower end of the first section, wherein the second section is matched with the guide hole, and the cross section area of the second section is larger than that of the first section, so that the friction force between the float rod and the buoy can be reduced, and the buoy can move vertically more smoothly.

Further, the first section and the second section are both cylindrical, and the diameter of the first section is smaller than that of the second section.

In order to be convenient for carry out spacingly to the upward movement of floating rod, the floating rod including be located the third section of bottom and with the second section that third section upper end is connected, the third section transversely protruding locate the second section, just the floating rod can be along with its vertical removal to the up end of third section with the surface of the diapire of installation box offsets to make the floating rod move up one section distance back and float separation, avoid the floating rod to influence the removal of buoy.

In order to enable the position of the magnetic piece to be closer to the bottom wall of the water tank, a lower concave portion is arranged below the guide hole in the bottom wall of the water tank, and is used for accommodating at least the lower portion of the third section, so that the lower concave portion can accommodate the lower portion of the floating rod, a gap between the bottom wall of the mounting box and the bottom wall of the water tank can be reduced, the position of the magnetic piece is closer to the bottom wall of the water tank, and the water quantity of the water tank in a low water level state can be reduced.

In order to reduce the contact area between the outer surface of the buoy and the inner surface of the mounting box, a first convex rib is arranged on the inner surface of the bottom wall of the mounting box, and/or a second convex rib is arranged on the inner side surface of the mounting box, and/or a convex column is arranged on the outer surface of the buoy.

Further designed, the magnetic piece is a magnet arranged in the buoy.

In order to facilitate detection of the position of the magnetic element when the tank is at low and high water levels, the outer surface of the tank is provided with a first magnetic sensing element adjacent to the bottom wall of the tank and a second magnetic sensing element adjacent to the top wall of the tank. The first magnetic induction element and the second magnetic induction element are reed pipes or Hall sensors.

In order to facilitate detection of the high water level of the water tank when the second magnetic sensing element fails, an anti-overflow probe is mounted on the top wall of the water tank.

a water tank;

the method is characterized in that: the water tank is internally provided with a wall part above the bottom wall, the wall part extends horizontally or obliquely and penetrates through a guide hole of the wall thickness, and the water tank also comprises

The liquid level detection device comprises a floating rod capable of vertically moving and penetrating through the guide hole, and a magnetic piece arranged on the upper portion of the floating rod.

The water tank assembly of the household appliance is characterized in that the wall part above the bottom wall of the water tank is arranged inside the water tank, the guide hole penetrating through the wall of the water tank is formed in the wall part, the floating rod capable of moving vertically is arranged in the guide hole in a penetrating mode, the magnetic piece is arranged on the upper portion of the floating rod, the gravity center of the floating rod can be moved upwards, the floating rod cannot turn under the constraint of the guide hole, when the water tank is at a low water level, the bottom density of the floating rod is smaller and floats more easily, and therefore, the floating rod is not easy to be blocked.

The utility model solves the second technical problem by adopting the technical proposal that: a household appliance, characterized in that: there is applied a water tank assembly for a household appliance as described above, including a water dispenser, a water purifying dispenser, a steam box, a sterilizer, a floor mopping machine, a steam mop or an ironing machine.

Compared with the prior art, the utility model has the advantages that: the water tank assembly of the household appliance is provided with an installation box through the inner side surface of the water tank, the bottom wall of the installation box is provided with a guide hole penetrating through the wall thickness of the installation box, and the liquid level indicating device comprises a buoy which can be vertically movably accommodated in the installation box, a magnetic part arranged on the buoy and a floating rod which can be vertically movably arranged in the guide hole, so that the buoy moves upwards in the gravity of the water tank, the floating rod cannot turn under the constraint of the guide hole, in addition, the buoy is arranged on the moving track of the floating rod, so that when the water tank is at a low water level, the density of the floating rod is smaller and is easier to float, and the buoy can be pushed upwards, so that the buoy can smoothly move upwards, and the phenomenon of clamping stagnation of the buoy is not easy to occur; the water tank assembly of the household appliance is characterized in that the wall part above the bottom wall of the water tank is arranged in the water tank, the wall part is provided with the guide hole penetrating through the wall thickness of the water tank, the vertically movable floating rod is arranged in the guide hole in a penetrating mode, the upper part of the floating rod is provided with the magnetic part, so that the gravity center of the floating rod can move upwards, the floating rod cannot turn under the constraint of the guide hole, when the water tank is at a low water level, the bottom density of the floating rod is smaller and is easier to float, and therefore, the floating rod is not easy to be blocked; the water tank with the household appliance is applied, and the buoy is not easy to be blocked.

Drawings

FIG. 1 is a perspective view of the structure of embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view I of embodiment 1 of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a second cross-sectional view of embodiment 1 of the present utility model;

fig. 5 is a perspective view of the bottom chassis in embodiment 1 of the present utility model;

fig. 6 is a perspective view showing the structure of the mounting case in embodiment 1 of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-6, is a first preferred embodiment of the present utility model.

As shown in fig. 1 to 3, the tank assembly for a home appliance in this embodiment includes a tank 100, a mounting case 4, a liquid level indicating device, an overflow preventing probe 6, a first magnetic sensing element 71 and a second magnetic sensing element 72.

As shown in fig. 1 and fig. 4 to 6, a water tank 100 in the present embodiment includes a bottom case 1 having an open top and a cover 2 covering the top of the bottom case 1. The mounting box 4 is provided on the inner side of the water tank 100, and the mounting box 4 has a bottom wall 40 extending horizontally, and the bottom wall 40 of the mounting box 4 is located above the bottom wall of the bottom case 1 and has a guide hole 400 penetrating the wall thickness thereof.

As shown in fig. 2 and 3, the liquid level indicating device includes a float 3, a magnetic member, and a float rod 5. The buoy 3 is vertically movably accommodated in the mounting box 4, and the magnetic member is a magnet (not shown) disposed in the buoy 3, so that the buoy 3 moves up in the center of gravity of the water tank 100. The floating rod 5 can vertically movably penetrate through the guide hole 400, so that the floating rod 5 cannot turn under the constraint of the guide hole 400, and the buoy 3 is located on the moving track of the floating rod 5, so that when the water tank 100 is at a low water level, the floating rod 5 is smaller in density and floats more easily, and further the buoy 3 can be pushed upwards, so that the buoy 3 can smoothly move upwards, and the buoy 3 is not easy to be jammed.

As shown in fig. 6, six protrusions 401 protruding inwards are uniformly distributed on the inner wall of the guide hole 400 at intervals along the circumferential direction, a guide area 402 for the floating rod 5 to penetrate is defined in the middle of the guide hole 400, and a water passing gap 403 is formed between two adjacent protrusions 401, so that the inside of the installation box 4 and the inner cavity of the water tank 100 can be communicated through the water passing gap 403, and water can be conveniently introduced into and discharged from the inside of the installation box 4.

As shown in fig. 3, the floating rod 5 sequentially includes a first section 51, a second section 52 and a third section 53 from top to bottom, the first section 51, the second section 52 and the third section 53 are all cylindrical, and the diameter of the first section 51, the diameter of the second section 52 and the diameter of the third section 53 are sequentially increased. The first section 51 is used for contacting with the buoy 3, the second section 52 is adapted to the guiding area 402, so that the contact area between the floating rod 5 and the buoy 3 can be reduced, the friction force between the floating rod 5 and the buoy 3 is reduced, the buoy 3 can move vertically more smoothly, moreover, after the floating rod 5 is deformed, the floating rod 5 is clamped, and the relationship between the diameter of the first section 51 and the diameter of the second section 52 is also convenient for the floating rod 5 to move vertically in the mounting box 4, so that the possibility of clamping stagnation of the floating rod 5 is reduced. The floating rod 5 can vertically move along with the floating rod 5 to the upper end face of the third section 53 to prop against the outer surface of the bottom wall of the installation box 4, so that the upward movement of the floating rod 5 is conveniently limited, the floating rod 5 is separated from the buoy 3 after being moved upwards for a certain distance, and the floating rod 5 is prevented from influencing the movement of the buoy 3. The bottom wall of the bottom case 1 is provided with a lower recess 11 below the guide hole 400, and the lower recess 11 is accommodated by the third section 53, so that the lower recess 11 can accommodate the lower part of the floating rod 5, and further, the gap between the bottom wall of the mounting box 4 and the bottom wall of the water tank 100 can be reduced, and the magnetic member can be positioned closer to the bottom wall of the water tank 100, and the water amount of the water tank 100 at a low water level can be reduced. In this embodiment, when the third section 53 of the floating rod 5 is accommodated in the concave portion 11, the upper end surface of the first section 51 of the floating rod 5 contacts the float 3.

As shown in fig. 4 and 6, the bottom wall 40 of the mounting box 4 has two first ribs 41 spaced apart from each other on the inner surface thereof, and two second ribs 42 spaced apart from each other on the inner side surface of the mounting box 4. The buoy 3 is in a horizontal cylindrical shape, and the outer end face of the buoy 3 is provided with a plurality of convex columns 31, so that the contact between the outer surface of the buoy 3 and the inner surface of the installation box 4 can be in point contact or line contact, and the contact area between the outer surface of the buoy 3 and the inner surface of the installation box 4 can be reduced.

As shown in fig. 1, the outer side surface of the bottom case 1 is provided with a first magnetic induction element 71 and a second magnetic induction element 72, the first magnetic induction element 71 is adjacent to the bottom wall of the water tank 100, and the second magnetic induction element 72 is adjacent to the top wall of the water tank 100, so that the position of the magnetic member is easily detected when the water tank 100 is at a low water level and a high water level. The first magnetic induction element 71 and the second magnetic induction element 72 in the present embodiment are both hall elements. The working principles of the hall element and the magnetic member are referred to the prior art and are not described in detail herein. The cover 2 is provided with an overflow preventing probe 6 to facilitate detection of a high water level of the water tank 100 when the second magnetic sensing element 72 fails.

The household appliance in the embodiment is a water purifying machine, and the household appliance is applied with the water tank assembly for the household appliance.

Example 2

This embodiment differs from embodiment 1 in that: the buoy is not arranged, only the floating rod is arranged, the wall part above the bottom wall of the water tank is arranged in the water tank, and the wall part is the bottom wall of the installation box. The upper portion of floating rod is located to the magnetic part to can make the focus of floating rod shift up, and the floating rod can not take place to overturn under the restraint of guiding hole, thereby when the water tank is at low water level, the floating rod bottom density is littleer and more floats easily, consequently, the floating rod is difficult to appear the jamming.

Example 3

This embodiment differs from embodiment 1 in that: the household appliance in the embodiment is a steam box.

Example 4

This embodiment differs from embodiment 1 in that: the household appliance in the embodiment is a disinfection cabinet.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A water tank assembly for a household appliance, comprising:

a water tank (100);

the mounting box (4) is arranged on the inner side surface of the water tank (100);

the liquid level indicating device comprises a buoy (3) which is vertically movably accommodated in the installation box (4), and a magnetic piece arranged on the buoy (3);

the method is characterized in that: the mounting box (4) is provided with a bottom wall (40) extending horizontally or obliquely, the bottom wall (40) of the mounting box (4) is positioned above the bottom wall of the water tank (100) and is provided with a guide hole (400) penetrating through the wall thickness of the bottom wall,

and, the liquid level indicating device also comprises a floating rod (5) which can vertically move and is penetrated in the guide hole (400), and the buoy (3) is positioned on the moving track of the floating rod (5).

2. The water tank assembly as set forth in claim 1 wherein: at least two inwards-protruding protrusions (401) are arranged on the inner wall of the guide hole (400) at intervals along the circumferential direction, a guide area (402) for the floating rod (5) to penetrate is defined in the middle of the guide hole (400), and a water passing gap (403) is formed between every two adjacent protrusions (401).

3. The water tank assembly as set forth in claim 1 wherein: the floating rod (5) comprises a first section (51) positioned at the top and a second section (52) connected with the lower end of the first section (51), wherein the second section (52) is matched with the guide hole (400) and the cross section area of the second section is larger than that of the first section (51).

4. A cistern assembly as claimed in claim 3, wherein: the first section (51) and the second section (52) are cylindrical, and the diameter of the first section (51) is smaller than that of the second section (52).

5. The water tank assembly as set forth in claim 1 wherein: the floating rod (5) comprises a third section (53) positioned at the bottom and a second section (52) connected with the upper end of the third section (53), the third section (53) is transversely arranged on the second section (52) in a protruding mode, and the floating rod (5) can vertically move along with the floating rod until the upper end face of the third section (53) abuts against the outer surface of the bottom wall (40) of the installation box (4).

6. The water tank assembly as set forth in claim 5 wherein: the bottom wall of the water tank (100) is provided with a lower concave part (11) below the guide hole (400), and at least the lower part of the third section (53) is accommodated in the lower concave part (11).

7. The water tank assembly as set forth in claim 1 wherein: the inner surface of the bottom wall (40) of the mounting box (4) is provided with a first convex rib (41), and/or the inner side surface of the mounting box (4) is provided with a second convex rib (42), and/or the outer surface of the buoy (3) is provided with a convex column (31).

8. The water tank assembly as claimed in any one of claims 1 to 7, wherein: the magnetic part is a magnet arranged in the buoy (3).

9. The water tank assembly as claimed in any one of claims 1 to 7, wherein: the outer surface of the water tank (100) is provided with a first magnetic induction element (71) and a second magnetic induction element (72), the first magnetic induction element (71) is adjacent to the bottom wall of the water tank (100), and the second magnetic induction element (72) is adjacent to the top wall of the water tank (100).

10. The water tank assembly as set forth in claim 9 wherein: an anti-overflow probe (6) is arranged on the top wall of the water tank (100).

11. A water tank assembly for a household appliance, comprising:

a water tank;

12. A household appliance, characterized in that: use of a water tank assembly according to any one of claims 1 to 11 for a household appliance comprising a water dispenser, a water purifying dispenser, a steam box, a disinfection cabinet, a mopping machine, a steam mop or an ironing machine.