Floater assembly and water tank

Abstract

The utility model discloses a floater assembly and a water tank, and belongs to the technical field of smart home. The floater assembly comprises a floater and an elastic piece arranged at the upper end of the floater, a first detection piece used for detecting the displacement amount of the floater is arranged at the position close to the floater, and / or a second detection piece used for detecting the deformation amount of the elastic piece is arranged at the position close to the elastic piece. Due to the fact that the elastic piece is arranged at the upper end of the floater, the height of the liquid level can be calculated according to the displacement amount of the floater or the deformation amount of the elastic piece, the water volume of the water tank is detected in real time, and a user is reminded; and the elastic piece presses the floater downwards, so that the displacement amount of the floater can be reduced, and the size of the first detection piece can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, in particular to a float assembly and a water tank. Background Art

[0002] A floor sweeper, usually referring to a floor sweeping robot, is a household appliance capable of automatically cleaning the ground. With the progress of technology and the improvement of people's living standards, floor sweeping robots have gradually become popular and become an important cleaning tool in modern families.

[0003] During the process of cleaning a house by a floor sweeper, after the main body finishes cleaning the floor, it will return to the base station to wash the mop. The water tank in the base station serves as a water source to provide water for the main body to wash the mop and keep the mop clean. At present, the water volume detection of the water tank in the market only has the states of having water and having no water, and cannot accurately display the remaining water volume.

[0004] Therefore, there is an urgent need to provide a float assembly and a water tank to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a float assembly and a water tank, which can detect the water volume of the water tank in real time and be used to remind the user.

[0006] To achieve the above purpose, the following technical solutions are provided:

[0007] A float assembly includes a float and an elastic member provided at the upper end of the float. A first detector for detecting the displacement of the float is provided near the float, and / or a second detector for detecting the deformation of the elastic member is provided near the elastic member.

[0008] As an optional solution of the float assembly, it further includes a mounting seat. The mounting seat is of a hollow structure. The elastic member is arranged in the mounting seat. One end of the elastic member is connected to the float, and the other end of the elastic member is connected to the mounting seat.

[0009] As an optional solution of the float assembly, the elastic member is a spring. The mounting seat is provided with a sleeve portion. One end of the spring is arranged in the sleeve portion, and the other end of the spring is sleeved on the annular flange of the float.

[0010] As an optional solution of the float assembly, the first detector is

[0011] a water level detection circuit board. A plurality of Hall elements are arranged at intervals along the height direction of the float. Each Hall element is electrically connected to the water level detection circuit board;

[0012] The inside of the float is hollow, and a magnet is arranged inside the float. The magnet is used to trigger the Hall element to generate a Hall voltage.

[0013] As an alternative to the float assembly, the second detection member is a photoelectric sensor for detecting the deformation amount of the elastic member.

[0014] As an alternative to the float assembly, the cross-sectional area of each part of the float is the same or different.

[0015] As an alternative to the float assembly, the float includes a first component and a second component, the first component and / or the second component is made of plastic, and a heat conduction member is provided between the first component and the second component.

[0016] A water tank includes: a water tank body, which is provided with a water storage cavity and any one of the above-mentioned float assemblies, the first detection member and the second detection member are respectively arranged on the outer wall surface of the water tank body or inside the water tank body, and the float is arranged inside the water tank body.

[0017] As an alternative to the water tank, an installation base with several guide plates is arranged inside the water tank body, each guide plate extends along a first direction, and the several guide plates enclose to form a guide space, and the float is arranged in the guide space.

[0018] As an alternative to the water tank, an installation post with a first connection hole is arranged on the installation base, a second connection hole is arranged on the installation seat, and a fastener passes through the second connection hole and is connected to the first connection hole.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] For the float assembly provided by the present utility model, after the float assembly is installed in the water tank, during the process of using water or filling water in the water tank, the first detection member is used to detect the displacement amount of the float, and the second detection member is used to detect the deformation amount of the elastic member. Since an elastic member is arranged at the upper end of the float, not only can the liquid level height be calculated according to the displacement amount of the float or the deformation amount of the elastic member to detect the water volume in the water tank in real time for reminding the user; but also because the elastic member presses down the float, the displacement amount of the float can be reduced, which helps to reduce the size of the first detection member.

[0021] The water tank provided by the present utility model can detect the water volume in the water tank in real time and reduces the size of the first detection member for detecting the displacement amount of the float. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0023] Figure 1 Assembly schematic diagram of the water tank in the embodiment of the present invention;

[0024] Figure 2 Explosion schematic diagram of the water tank in the embodiment of the present invention;

[0025] Figure 3 Structural schematic diagram of the water tank body in the embodiment of the present invention;

[0026] Figure 4 Structural schematic diagram of the float assembly in the embodiment of the present invention;

[0027] Figure 5 Explosion schematic diagram of the float assembly in the embodiment of the present invention.

[0028] Reference numerals:

[0029] 1. Water tank body; 2. Water level detection circuit board; 3. Float assembly; 4. Tank cover;

[0030] 11. Water storage cavity; 12. Installation base; 121. Installation column; 122. First connection hole; 13. Guide plate;

[0031] 21. Hall element;

[0032] 31. Float; 311. Annular flange; 312. First component; 313. Second component; 314. Heat conduction member; 32. Magnet; 33. Mounting seat; 331. Sleeve part; 332. Second connection hole; 34. Elastic member; 35. Float rod; 36. Float block. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for differential description and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "installed" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and cannot be construed as a limitation on the present utility model.

[0037] In order to be able to detect the water volume in the water tank in real time to remind the user, this embodiment provides a float assembly and a water tank. The following will be combined with Figures 1 to 5 to describe the specific content of this embodiment in detail. It should be noted that the height direction and the first direction mentioned in this embodiment both refer to Figure 1 the Z direction in

[0038] This embodiment provides a float assembly, which includes a float 31 and an elastic member 34 disposed at the upper end of the float 31. A first detector for detecting the displacement of the float 31 is provided near the float 31, and / or a second detector for detecting the deformation of the elastic member 34 is provided near the elastic member 34. After the float assembly is installed in the water tank, during the process of using or filling water in the water tank, the first detector is used to detect the displacement of the float 31, and / or the second detector (not shown in the figure) is used to detect the deformation of the elastic member 34. Since an elastic member is provided at the upper end of the float 31, not only can the liquid level height be calculated according to the displacement of the float 31 or the deformation of the elastic member 34, and the water volume in the water tank can be detected in real time to remind the user; but also because the elastic member 34 presses down the float 31, the displacement of the float 31 can be reduced, which helps to reduce the size of the first detector.

[0039] Further, the float assembly further includes a mounting seat 33. The mounting seat 33 has a hollow structure. The elastic member 34 is disposed in the mounting seat 33. One end of the elastic member 34 is connected to the float 31, and the other end of the elastic member 34 is connected to the mounting seat 33. By adding the mounting seat 33, it is convenient to install the float assembly at the corresponding position of the water tank, reducing the installation difficulty.

[0040] Furthermore, the elastic member 34 is a spring. The mounting seat 33 is provided with a sleeve portion 331. One end of the spring is disposed in the sleeve portion 331, and the other end of the spring is sleeved on the annular flange 311 of the float 31. One end of the spring is received in the sleeve portion 331 of the mounting seat 33, and the other end of the spring is connected to the annular flange 311, ensuring the assembly stability of the spring and avoiding the spring from coming loose.

[0041] Further, the first detector is a water level detection circuit board 2. A plurality of Hall elements 21 are arranged at intervals along the height direction of the float 31. Each Hall element 21 is electrically connected to the water level detection circuit board 2. The inside of the float 31 is hollow, and a magnet 32 is provided inside the float 31. The magnet 32 is used to trigger the Hall element 21 to generate a Hall voltage. The water level detection circuit board 2 is installed on the outer wall surface of the water tank body 1. The float 31 is located inside the water tank body 1. The float 31 embedded with the magnet 32 can float in the water of the water storage cavity 11. The height of the float 31 changes with the liquid level. Since a plurality of Hall elements 21 are arranged at intervals along the height direction of the water tank body 1, using the Hall effect principle, the magnet 32 can trigger the Hall element 21 at the corresponding height to generate a Hall voltage. The water level detection circuit board 2 can obtain the displacement of the float 31 by acquiring the Hall voltage of the Hall element 21 at the corresponding height.

[0042] Specifically, a plurality of Hall elements 21 are arranged at intervals in the first direction on the water level detection circuit board 2 for sensing the height of the magnet 32 inside the float 31.

[0043] Further, the second detection member is a photoelectric sensor for detecting the deformation amount of the elastic member 34. The photoelectric sensor is used to measure the deformation amount of the elastic member 34 and transmit the measurement data to the control module of the water tank.

[0044] Further, the cross-sectional areas of different parts of the float 31 are the same or different. The float 31 includes a float rod 35 and a float block 36. In some application scenarios, the cross-sectional areas of the float rod 35 and the float block 36 are the same; in other application scenarios, the cross-sectional areas of the float rod 35 and the float block 36 are different.

[0045] Further, the float 31 includes a first component 312 and a second component 313. The first component 312 and / or the second component 313 is made of plastic, and a heat conducting member 314 is provided between the first component 312 and the second component 313. Before assembling the first component 312 and the second component 313, the heat conducting member 314 is heated to partially melt the first component 312 and / or the second component 313, and after the plastic cools and solidifies, the first component 312 and the second component 313 are firmly connected.

[0046] This embodiment also provides a water tank, which includes a water tank body 1 and the above-mentioned float assembly. A water storage cavity 11 is provided in the water tank body 1. The first detection member and the second detection member are respectively arranged on the outer wall surface of the water tank body 1 or inside the water tank body 1, and the float 31 is arranged inside the water tank body 1. In this embodiment, the first detection member is installed on the outer wall surface of the water tank body 1, and the water tank body 1 can be used to supply water to the floor sweeper. The water tank can detect the water volume inside the water tank in real time, and reduces the size of the first detection member for detecting the displacement of the float.

[0047] Further, an installation base 12 with a plurality of guide plates 13 is arranged inside the water tank body 1. Each guide plate 13 extends along the first direction, and the plurality of guide plates 13 enclose a guiding space, and the float 31 is arranged in the guiding space. The guiding space formed by enclosing the plurality of guide plates 13 facilitates guiding the float 31 with the magnet 32 to move up and down only along the first direction.

[0048] Further, an installation post 121 with a first connection hole 122 is arranged on the installation base 12, and a second connection hole 332 is arranged on the installation seat 33. A fastener passes through the second connection hole 332 and is connected to the first connection hole 122. By adding the first connection hole 122 and the second connection hole 332, it is convenient to firmly connect the installation seat 33 and the installation base 12 through fasteners such as screws or bolts.

[0049] Further, the water tank further includes a tank cover 4, and the tank cover 4 is hinged to the water tank body 1.

[0050] The working principle of the float assembly in the water tank in this embodiment is as follows:

[0051] I. In the scenario where the cross-sectional area of the floating block of the float is equal to the cross-sectional area of the float rod:

[0052] 1. The water usage process detection mode includes: during the process of the liquid level descending along the float, H1 = KΔx / ρgS + Δx; (where: H1 is the change in the liquid level during the process of the liquid level descending along the float, Δx is the deformation of the elastic component or the displacement of the float, S is the cross-sectional area of the float, K is the elastic coefficient of the elastic component, ρ is the liquid density, g is the acceleration due to gravity), and the liquid level height h = Hfull - H1, (where: Hfull is the liquid level height when the container is full of water).

[0053] 2. When the initial liquid level height in the container is h0 = G / ρgS, and when the liquid level height is greater than the initial liquid level height, the water filling process detection mode includes: during the process of the liquid level ascending along the float, H2 = KΔx / ρgS + Δx, (where: H2 is the change in the liquid level during the process of the liquid level ascending along the float, Δx is the deformation of the elastic component or the displacement of the float, S is the cross-sectional area of the float, K is the elastic coefficient of the elastic component, ρ is the liquid density, G is the gravity received by the float, g is the acceleration due to gravity), and the liquid level height h = H2 + h0.

[0054] II. In the scenario where the cross-sectional area of the floating block of the float is not equal to the cross-sectional area of the float rod:

[0055] 1. The water usage process detection mode:

[0056] During the process of the liquid level descending along the float rod, H1 = KΔx / ρgS1 + Δx; (where: H1 is the amount of liquid level drop during the process of the liquid level descending along the float rod, Δx is the deformation of the elastic component, that is, the amount of float drop, S1 is the cross-sectional area of the float rod, K is the elastic coefficient of the elastic component, ρ is the liquid density, g is the acceleration due to gravity)

[0057] During the process of the liquid level descending along the floating block, H2 = K(Δx – a1) / ρGS2 + Δx - a1; (where: H2 is the amount of liquid level drop during the process of the liquid level descending along the floating block, S2 is the cross-sectional area of the floating block, a1 is the maximum value of the deformation of the elastic component when the liquid level descends along the float rod)

[0058] The liquid level height h = Hfull - H1 - H2, (where: Hfull is the liquid level height when the water tank is full of water).

[0059] 2. The water filling process detection mode: The initial liquid level height is h0 = G / ρgS2, and when the liquid level height is greater than the initial liquid level height:

[0060] During the process of the liquid level ascending along the floating block: H3 = KΔx / ρgS2 + Δx; (where: H3 is the amount of liquid level rise during the process of the liquid level ascending along the floating block, K is the elastic coefficient of the elastic component, ρ is the liquid density, g is the acceleration due to gravity, S2 is the cross-sectional area of the floating block)

[0061] During the process of the liquid level rising along the floating rod: H4 = K(△x – a2) / ρgS1 + △x – a2; (a2 is the maximum deformation of the elastic member when the liquid level rises along the floating block, and S1 is the cross-sectional area of the floating rod);

[0062] The liquid level height h = H3 + H4 + h0.

[0063] The liquid level height detection method provided by the present utility model can detect the liquid level changes in the water usage process and the water filling process of the water tank in real time, and then obtain the water volume in the water tank.

[0064] Note that the above is only the preferred embodiment of the present utility model and the applied technical principle. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A float assembly, characterized in that, It includes a float (31) and an elastic member (34) provided at the upper end of the float (31). A first detector for detecting the displacement of the float (31) is provided near the float (31), and / or a second detector for detecting the deformation of the elastic member (34) is provided near the elastic member (34).

2. The float assembly according to claim 1, wherein It further includes a mounting base (33). The mounting base (33) has a hollow structure. The elastic member (34) is disposed within the mounting base (33). One end of the elastic member (34) is connected to the float (31), and the other end of the elastic member (34) is connected to the mounting base (33).

3. The float assembly according to claim 2, characterized in that, The elastic member (34) is a spring. The mounting base (33) is provided with a sleeve portion (331). One end of the spring is disposed within the sleeve portion (331), and the other end of the spring is sleeved on the annular flange (311) of the float (31).

4. The float assembly according to claim 1, characterized in that The first detector is a water level detection circuit board (2). A plurality of Hall elements (21) are spaced along the height direction of the float (31), and each Hall element (21) is electrically connected to the water level detection circuit board (2). The interior of the float (31) is hollow. A magnet (32) is provided within the float (31), and the magnet (32) is used to trigger the Hall element (21) to generate a Hall voltage.

5. The float assembly according to claim 1, characterized in that, The second detector is a photoelectric sensor for detecting the deformation of the elastic member (34).

6. The float assembly according to claim 1, wherein The cross-sectional area of each part of the float (31) is the same or different.

7. The float assembly according to claim 1, wherein The float (31) includes a first component (312) and a second component (313). The first component (312) and / or the second component (313) is made of plastic. A heat conducting member (314) is provided between the first component (312) and the second component (313).

8. A water tank, characterized in that, It includes: A water tank body (1) having a water storage cavity (11) and a float assembly as described in any one of claims 1 to 7. The first detector and the second detector are respectively disposed on the outer wall surface or within the water tank body (1). The float (31) is disposed within the water tank body (1).

9. The water tank according to claim 8, characterized in that, An installation base (12) with a plurality of guide plates (13) is provided within the water tank body (1). Each guide plate (13) extends along a first direction. The plurality of guide plates (13) enclose a guiding space, and the float (31) is disposed within the guiding space.

10. The water tank according to claim 9, characterized in that , A mounting post (121) with a first connection hole (122) is provided on the mounting base (12). A second connection hole (332) is provided on the mounting base (33). A fastener passes through the second connection hole (332) to be connected to the first connection hole (122).

Images