CN216962365U

CN216962365U - Water level detection device and cleaning equipment

Info

Publication number: CN216962365U
Application number: CN202220542173.6U
Authority: CN
Inventors: 郭建刚; 王钦荣
Original assignee: Guangdong Donlim Electrical Appliance Co ltd
Current assignee: Guangdong Donlim Electrical Appliance Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-15
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a water level detection device and cleaning equipment. The anti-foaming shell is arranged in the water tank and is arranged on the side wall of the water tank, the anti-foaming shell comprises a shell, the lower portion of the shell is provided with a foam breaking hole communicated with the inside of the water tank, and one end of the shell is open and penetrates through the side wall of the water tank. The mount is located the water tank outside and the open end of closing cap casing to make form the intake antrum in the casing, the intake antrum communicates in broken bubble and the water tank, makes the water level in the intake antrum and the water level in the water tank be in same level. The first probe and the second probe are respectively and independently arranged on the fixing frame and are respectively connected with the main control board, and when the water level of the water inlet cavity reaches a preset height along with the water level of the water tank, the first probe and the second probe are conducted through the water in the water inlet cavity and feed back water level signals to the main control board.

Description

Water level detection device and cleaning equipment

Technical Field

The utility model relates to the technical field of household appliances, in particular to a water level detection device and cleaning equipment.

Background

At present, in order to ensure the cleaning effect of cleaning equipment such as a floor washing machine, a cloth machine and the like, defoaming agents are often required to be added into a water purification tank, sometimes, the defoaming agents are not added or more cleaning agents are added, so that a large amount of foam exists in a sewage tank, the volume of the foam is large, the sewage tank can be filled quickly, an existing water level sensor can report that the sewage tank is full, only a small amount of sewage exists actually, and the detection precision is low; and the potential induction used by the water tank is directly exposed without any protection, so that the problem of probe failure can be caused under the condition of excessive foam, or the probe failure can be induced when the wall of the water tank is too wet to form a passage. If chinese patent publication No. CN103726469A discloses a water level sensing device for floor washing machine, the floor washing machine is equipped with the sewage case, sewage roof portion is equipped with the fan that absorbs water, the sewage incasement is equipped with the water level inductor, be equipped with control panel in the control room of floor washing machine, the last water level display post that is equipped with of control panel, the water level inductor is connected with water level display post, monitor the water level in the sewage case through water level display post, it is visible, it can't solve the probe that the foam too much leads to in the water tank inefficacy and detect the problem that the precision is low.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides the water level detection device and the cleaning equipment, wherein the water level detection device can accurately detect the water level in the water tank, and the problems of probe failure and low detection precision caused by excessive foam are effectively avoided.

The embodiment of the utility model provides a water level detection device, which is applied to a water tank and comprises:

the anti-foaming shell is arranged in the water tank and is arranged on the side wall of the water tank, the anti-foaming shell comprises a shell, the lower part of the shell is provided with a foam breaking hole communicated with the inside of the water tank, and one end of the shell is open and is communicated with the side wall of the water tank;

the fixing frame is positioned outside the water tank and covers the open end of the shell so as to form a water inlet cavity in the shell, and the water inlet cavity is communicated with the inside of the water tank through the broken bubble hole;

the first probe and the second probe are respectively and independently arranged on the fixing frame and are respectively connected with the main control board, and when the water level of the water inlet cavity reaches a preset height along with the water level of the water tank, the first probe and the second probe are communicated through the water in the water inlet cavity and feed back a water level signal to the main control board. Above-mentioned structure can detect the water level in the water tank accurately, has avoided the too much probe that leads to of foam to become invalid and has detected the problem that the precision is low to appear effectively.

In some embodiments, the anti-foaming housing further includes a partition plate disposed in the housing, the partition plate is configured to partition the water inlet cavity into a first chamber and a second chamber, the first probe is located in the first chamber, the second probe is located in the second chamber, and the bubble breaking hole is respectively communicated with the first chamber and the second chamber. So, can arrange first probe and second probe in the divided cavity respectively through the division board, when having avoided the water level to not reach preset height effectively, first probe and the problem emergence of second probe misconduction that leads to because of factors such as humidity.

In some embodiments, the foam breaking hole comprises a through hole and a foam breaking body connected to the wall of the through hole, and the foam breaking body is used for separating the through hole into a plurality of hole bodies so as to effectively break foam entering the water inlet cavity and achieve a good foam breaking effect.

In some embodiments, the casing is provided with an air vent for communicating the water inlet cavity with the water tank so as to balance air pressure in the water inlet cavity, and avoid the problem that the air pressure is increased after water enters the water inlet cavity, so that water cannot enter the water inlet cavity.

In some embodiments, the fixing frame is convexly provided with a fixing block, and a groove body for embedding the fixing block is arranged on the periphery of the shell, so that the fixing frame and the shell can keep a relatively stable position relation.

In some embodiments, the fixing frame is fixed on the side wall of the water tank. The structure is compact in design and can be more stable.

In some embodiments, one end of the first probe located in the water inlet cavity is provided with a first bending part formed by bending downwards, and one end of the second probe located in the water inlet cavity is provided with a second bending part formed by bending downwards. The first bending part and the second bending part are beneficial to the contact of the first probe and the second probe with water in an inserting mode, so that the contact area of the water and the probes is increased, and the generated signals are more stable.

In some embodiments, the fixing frame is provided with a sealing ring which seals the fixing frame with the shell so as to increase the sealing performance of the water inlet cavity and avoid water overflow.

In some embodiments, the housing is removably coupled to the mount. The mode is convenient to disassemble and assemble, and is beneficial to subsequent part replacement.

The embodiment of the utility model also provides cleaning equipment, which comprises a water tank, a main control board and the water level detection device, wherein the water level detection device is arranged on the water tank, and the first probe and the second probe are respectively connected with the main control board. Above-mentioned structure can avoid being located into the first probe of water intracavity and second probe because of contacting too much foam and leading to the problem of inefficacy, has improved the detection precision, has increased the fail safe nature of product.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that: according to the utility model, the foam-proof shell is arranged, and the blast hole is arranged at the lower part of the foam-proof shell, so that foam in the water tank can not excessively enter the water inlet cavity formed by the foam-proof shell, the problem that the first probe and the second probe in the water inlet cavity lose efficacy due to contact with excessive foam is avoided, the detection precision is improved, and the safety and reliability of the product are improved.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

FIG. 1 is a schematic structural view illustrating a water level detecting apparatus applied to a water tank according to an embodiment of the present invention;

FIG. 2 is an exploded view of a water level detecting device according to an embodiment of the present invention;

FIG. 3 is a sectional view of a water level detecting apparatus according to an embodiment of the present invention applied to a water tank;

FIG. 4 is a sectional view of a water level detecting apparatus according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of another perspective of the water level detecting device according to the embodiment of the present invention;

FIG. 6 is a schematic structural view of a cleaning apparatus using a water level detecting device according to an embodiment of the present invention, wherein the cleaning apparatus is a scrubber;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is a schematic structural view of a cleaning apparatus using a water level detection device according to an embodiment of the present invention, wherein the cleaning apparatus is a cloth machine.

The members denoted by reference numerals in the drawings:

100-water level detection means; 200-a cleaning device; 1-a water tank; 2-an anti-foaming shell; 21-a housing; 22-breaking the cells; 23-a divider plate; 24-a via hole; 25-breaking the foam; 26-a vent; 27-a trough body; 3-a fixing frame; 31-fixing block; 41-a first probe; 42-a second probe; 43-a first bend; 44-a second bend; 5, a main control board; 6-water inlet cavity; 61-a first chamber; 62-a second chamber; 7-sealing ring.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings and the detailed description of embodiments of the utility model, but is not intended to limit the utility model.

The embodiment of the utility model provides a water level detection device 100, which is applied to a water tank 1, and is particularly suitable for cleaning equipment with the water tank 1, such as a floor washing machine, a cloth machine and the like. As shown in fig. 1 to 4, the water level detecting apparatus 100 includes an anti-foaming housing 2, a fixing frame 3, a first probe 41, and a second probe 42. The anti-foaming shell 2 is arranged in the water tank 1 and is arranged on the side wall of the water tank 1. The anti-foaming casing 2 comprises a casing 21, the lower part of the casing 21 is provided with a broken foam hole 22, and one end of the casing 21 is open and penetrates to the side wall of the water tank 1. The fixing frame 3 is positioned outside the water tank 1 and covers the open end of the shell 21 so as to form the water inlet cavity 6 in the shell 21, and the water inlet cavity 6 is communicated with the inside of the water tank 1 through the broken foam hole 22 so that the water level in the water inlet cavity 6 and the water level in the water tank 1 are at the same horizontal height. The first probe 41 and the second probe 42 are independently and respectively arranged on the fixing frame 3 and are respectively connected with the main control board 5, and when the water level of the water inlet cavity 6 reaches a preset height along with the water level of the water tank 1, the first probe 41 and the second probe 42 are conducted through the water in the water inlet cavity 6 and feed back a water level signal to the main control board 5.

Specifically, as shown in fig. 4, the lower portion of the housing 21 may be provided with a protrusion downward, and a blast hole is formed on the bottom of the protrusion such that the protrusion can be inserted into the water in a straight manner. Further, the housing 21 may have a circular shape, and the left and right sides thereof protrude outward to form connection portions through which the housing 21 may be connected to the fixed frame 3.

Specifically, the first probe 41 and the second probe 42 may have the same structure or different structures, and the present application does not specifically limit this, and both are disposed on the fixing frame 3, and there is no connection relationship between the two, that is, when the water level does not reach the height of the first probe 41 and the second probe 42, the first probe 41 and the second probe 42 are in the disconnected state. When the liquid level in the water inlet chamber 6 reaches the height of the first probe 41 and the second probe 42, the first probe 41 and the second probe 42 can be switched from the off state to the on state by conducting through water, so as to feed back the current water level signal in the water tank 1 to the main control panel 5. The first probe 41 and the second probe 42 may have the same or different horizontal heights, and this is not particularly limited in this application. It should be noted that when the two probes have different levels, the first probe 41 and the second probe 42 are turned on when the water level reaches the height of the probe with the higher height between the two probes.

Specifically, the broken cells 22 may perform the function of breaking the foam by their own structural features, for example, the broken cells 22 may be arranged in a net structure, a needle structure, or the like capable of breaking the foam.

Specifically, a through groove for installing the water level detecting device 100 may be formed on a side wall of the water tank 1, the anti-foaming casing 2 is installed in the through groove in an interference fit manner, and an open end of the casing 21 of the anti-foaming casing 2 is disposed toward the outside of the water tank 1.

Specifically, the main control panel 5 may be the main control panel 5 of the cleaning device 200 to which the water level detecting apparatus 100 is applied, and the cleaning device 200 may be a floor washing machine, a cloth processing machine, or the like. After receiving the water level signal, the main control panel 5 of the cleaning device can control the water adding device in the water tank 1 to stop running according to the water level signal, so that the situation that the water level in the water tank 1 exceeds the preset height and the water in the water tank 1 overflows is avoided.

According to the utility model, by arranging the anti-foam shell 2 and arranging the blast hole on the lower part of the anti-foam shell 2, foam in the water tank 1 can not enter the water inlet cavity 6 formed by the anti-foam shell 2 too much, so that the problem that the first probe 41 and the second probe 42 in the water inlet cavity 6 lose effectiveness due to contact with too much foam is avoided, the detection accuracy is improved, and the safety and reliability of the product are improved.

In some embodiments, as shown in fig. 3 to 4, the anti-foaming casing 2 further includes a partition plate 23 disposed in the housing 21, the partition plate 23 is used for partitioning the water inlet chamber 6 into a first chamber 61 and a second chamber 62, the first probe 41 is located in the first chamber 61, the second probe 42 is located in the second chamber 62, and the bubble breaking hole 22 is respectively communicated with the first chamber 61 and the second chamber 62. Therefore, the first probe 41 and the second probe 42 can be respectively arranged in the separated chambers through the partition plate 23, and the problem that the first probe 41 and the second probe 42 are conducted mistakenly due to factors such as humidity when the water level does not reach the preset height is effectively avoided.

Specifically, as shown in fig. 4, the lower end of the partition plate 23 may extend to the blast hole, and may divide the bubble breaking hole 22 into two parts uniformly, so that the flow rates of water entering the first chamber 61 and the second chamber 62 are as same as possible, thereby improving the accuracy of the detection result.

In some embodiments, as shown in fig. 5, the foam breaking hole 22 includes a through hole 24 and a foam breaking body 25 connected to the wall of the through hole 24, and the foam breaking body 25 is used for dividing the through hole 24 into a plurality of holes so as to effectively break up foam entering the water inlet chamber 6.

Specifically, as shown in fig. 5, the shape of the bubble breaking body 25 may be a cross to divide the through hole 24 into 4 holes, and certainly, the bubble breaking body 25 may also be a net to divide the through hole 24 into a plurality of small holes.

In some embodiments, as shown in fig. 2, the housing 21 is provided with a vent 26 for communicating the inlet chamber 6 with the water tank 1 to balance the air pressure in the inlet chamber 6, so as to avoid the problem that the air pressure is increased after water enters the inlet chamber 6, so that water cannot enter the inlet chamber 6.

Specifically, the vent 26 may be disposed near the upper portion of the inlet chamber 6, and the level of the vent may be higher than the level of the first probe 41 and the second probe 42, so as to avoid the water level being higher than the vent 26 and the vent 26 being unable to vent.

In some embodiments, as shown in fig. 2 and 4, the fixing frame 3 is convexly provided with a fixing block 31, and the periphery of the housing 21 is provided with a groove 27 for embedding the fixing block 31, so that the fixing frame 3 and the housing 21 can maintain a relatively stable positional relationship.

Specifically, the shape of the fixing block 31 may be a rectangular shape, a triangular shape, or the like, but the present invention is not limited thereto, and the shape of the groove 27 may be adapted to the shape of the fixing block 31.

In some embodiments, as shown in fig. 3, the fixing frame 3 is fixed to a sidewall of the water tank 1. The structure is compact in design and can be more stable.

In some embodiments, as shown in FIG. 4, the first probe 41 has a first bent portion 43 bent downward at an end thereof located in the inlet chamber 6, and the second probe 42 has a second bent portion 44 bent downward at an end thereof located in the inlet chamber 6. The first bent portion 43 and the second bent portion 44 facilitate the first probe 41 and the second probe 42 to contact with water in an insertion manner, increasing the contact area between the water and the probes, so that the generated signal is more stable.

In some embodiments, as shown in fig. 2 and 3, the fixing frame 3 is provided with a sealing ring 7 for sealing with the housing 21, so as to increase the sealing performance of the water inlet chamber 6 and prevent water from overflowing.

In some embodiments, the housing 21 is removably connected to the holder 3. The mode is convenient to disassemble and assemble, and is beneficial to subsequent replacement of parts.

An embodiment of the present invention further provides a cleaning apparatus 200, as shown in fig. 6 to 8, the cleaning apparatus 200 includes a water tank 1, a main control board 5, and the above water level detection device 100, the water level detection device 100 is disposed on the water tank 1, and the first probe 41 and the second probe 42 are respectively connected to the main control board 5. The cleaning device 200 may be a floor washer, a cloth machine, etc., the cleaning device shown in fig. 6 is a floor washer, and the cleaning device shown in fig. 8 is a cloth machine. Above-mentioned structure sets up broken big gun hole through setting up anti-foam shell 2 and in the lower part of anti-foam shell 2 for foam in the water tank 1 can not enter into the intake antrum 6 that anti-foam shell 2 formed too much, thereby has avoided being located first probe 41 and the second probe 42 of intake antrum 6 and has leaded to damaging the problem that became invalid because of contacting too much foam, has improved the detection precision, has increased the fail safe nature of product.

The above embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the present invention. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a water level detection device, is applied to on the water tank, its characterized in that includes:

the first probe and the second probe are respectively and independently arranged on the fixing frame and are respectively connected with the main control board, and when the water level of the water inlet cavity reaches a preset height along with the water level of the water tank, the first probe and the second probe are conducted through the water in the water inlet cavity and feed back a water level signal to the main control board.

2. The water level detecting device according to claim 1, wherein the anti-foaming casing further comprises a partition plate disposed in the casing, the partition plate is used for partitioning the water inlet cavity into a first cavity and a second cavity, the first probe is located in the first cavity, the second probe is located in the second cavity, and the bubble breaking hole is respectively communicated with the first cavity and the second cavity.

3. The water level detecting device according to claim 1, wherein the bubble breaking hole comprises a through hole and a bubble breaking body connected to a wall of the through hole, and the bubble breaking body is used for dividing the through hole into a plurality of holes.

4. The water level detecting apparatus according to claim 1, wherein the housing is provided with a vent for communicating the inlet chamber with the water tank.

5. The water level detecting device according to claim 1, wherein the fixing frame is protruded with a fixing block, and a groove for embedding the fixing block is formed around the housing.

6. The water level detecting apparatus according to claim 1, wherein the fixing frame is fixed to a side wall of the water tank.

7. The water level detecting device according to claim 1, wherein the first probe has a first bending portion bent downward at an end thereof located in the water inlet chamber, and the second probe has a second bending portion bent downward at an end thereof located in the water inlet chamber.

8. The water level detecting apparatus according to claim 1, wherein the fixing frame is provided with a sealing ring for sealing the fixing frame with the housing.

9. The water level detecting apparatus according to claim 1, wherein the housing is detachably coupled to the holder.

10. A cleaning device comprising a water tank and a main control board, characterized by further comprising a water level detection device as claimed in any one of claims 1 to 9, the water level detection device being disposed on the water tank, the first probe and the second probe being connected to the main control board, respectively.