CN217930466U - Liquid level detection device and sewage storage equipment - Google Patents

Abstract

The utility model belongs to the field of liquid level measurement, in particular to a liquid level detection device and a sewage storage device, wherein the liquid level detection device comprises a limiting part, a floating part and a magnetic induction assembly, the limiting part is used for being installed on the inner surface of the side wall of a water tank, and a limiting channel communicated with the inner space of the water tank is arranged in the limiting part; the floating piece is arranged in the limiting channel, a gap is arranged between the outer wall of the floating piece and the inner wall of the limiting channel, and the floating piece can float on the liquid level in the limiting channel along with the lifting of the liquid level in the water tank; the magnetic induction component can generate magnetic induction with the floating piece. The utility model discloses a liquid level detection device utilizes the float part that sets up in spacing passageway to go up and down along with the liquid level in step, and is provided with the interval between the outer wall of float part and the inner wall of spacing passageway, can prevent for a long time that the float part from blocking in spacing passageway because of the dirt in the sewage, and this liquid level detection device can exert effect longer time when being used for detecting the sewage liquid level.

Description

Liquid level detection device and sewage storage equipment

Technical Field

The utility model relates to a liquid level measurement technical field especially relates to a liquid level detection device and sewage storage equipment.

Background

For satisfying the liquid level detection in the water tank, there are multiple methods in the existing market, including capacitanc paster detection, liquid level ball-cock assembly detection, electrically conductive formula liquid level detection etc. but these detection device are commonly used under the clear water's of water tank splendid attire condition, if be used in under the water tank splendid attire sewage's the condition, because the dirt that exists in the sewage can be with liquid level switch's sensor probe embedding or get into the rotation department of ball-cock assembly pivot, lead to current these detection device to lose efficacy in the short time easily, influence the measurement of liquid level in the water tank.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a liquid level detection device and sewage storage equipment for when solving current detection device and being used for the sewage case to detect sewage liquid level, become invalid in the short time easily, influence the measuring technical problem of liquid level.

Therefore, according to an aspect of the present invention, there is provided a liquid level detection apparatus, comprising:

the limiting piece is arranged on the inner surface of the side wall of the water tank, and a limiting channel communicated with the inner space of the water tank is arranged in the limiting piece;

the floating piece is arranged in the limiting channel, a gap is formed between the outer wall of the floating piece and the inner wall of the limiting channel, and the floating piece can float on the liquid level in the limiting channel along with the lifting of the liquid level in the water tank; and

the magnetic induction assembly is used for being mounted on the outer surface of the side wall of the water tank and being arranged opposite to the side wall of the water tank relative to the limiting part, and the magnetic induction assembly can generate magnetic induction with the floating part.

Optionally, the spacing is not less than 3mm.

Optionally, the outer surface of the float has a pointed end.

Optionally, the outer surface of the float member includes two end surfaces disposed opposite to each other and a peripheral side surface connected between the two end surfaces, and the two tips are disposed on the two end surfaces, respectively.

Optionally, the magnetic induction assembly includes a circuit board and a plurality of hall switches arranged on the circuit board at intervals along a length direction parallel to the limiting channel.

Optionally, adjacent hall switches are arranged at equal intervals.

Optionally, the length direction of the limiting channel is arranged perpendicular to the liquid level.

Optionally, one end of the limiting channel close to the bottom of the water tank is provided with a lower port, one end of the limiting channel far away from the bottom of the water tank is provided with an upper port, a side opening communicated with the inside of the limiting channel is arranged on the limiting part, and the side opening extends to the upper port from the lower port along the length direction parallel to the limiting channel.

Optionally, the liquid level detection device still includes dirt clearance piece, and dirt clearance piece includes the main part and the handheld portion of being connected with the main part, and the shape of main part and the cross sectional shape adaptation of spacing passageway are arranged in the main part under the inside condition of spacing passageway, and handheld portion stretches out spacing passageway from the side opening, and along the handheld portion of length direction pulling of spacing passageway, the main part can slide and scrape the inner wall of spacing passageway in spacing passageway.

According to another aspect of the utility model, a sewage storage device is provided, this sewage storage device include the water tank and as above-mentioned liquid level detection device, liquid level detection device sets up on the water tank.

The utility model provides a liquid level detection device and sewage storage equipment's beneficial effect lies in: compared with the prior art, the utility model discloses a liquid level detection device utilizes the floating member that sets up in spacing passageway to go up and down along with the liquid level in step, and be provided with the interval between the outer wall of floating member and the inner wall of spacing passageway, can prevent for a long time that the floating member from blocking in spacing passageway because of the dirt in the sewage, through the position that is located the magnetic induction subassembly response floating member of water tank outer wall, and then realize the liquid level detection to liquid in the water tank, this liquid level detection device can exert a long time when being used for detecting the sewage liquid level.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 is a schematic perspective view illustrating a liquid level detection device mounted on a water tank according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view illustrating a liquid level detection device mounted on a water tank according to an embodiment of the present invention;

fig. 3 is a top view of the liquid level detection device mounted on the water tank according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a floating member of the liquid level detection apparatus according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating an installation of a magnetic induction assembly of the liquid level detecting apparatus on a liquid according to an embodiment of the present invention;

fig. 6 is a schematic view of a part of the liquid level detecting apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a dirt removing member of the liquid level detecting apparatus according to an embodiment of the present invention;

fig. 8 is a schematic view of a dirt cleaning member of the liquid level detecting apparatus according to an embodiment of the present invention when cleaning dirt in the limiting passage.

Description of the main element symbols:

100. a stopper;

101. a limiting channel; 102. a lower port; 103. an upper port; 104. opening the side;

200. a float member;

201. an end face; 2011. a tip; 202. a peripheral side surface; 210. a housing; 220. a magnet;

300. a magnetic induction assembly;

310. a circuit board; 320. a Hall switch;

400. connecting ropes;

500. a screw;

600. a dirt cleaning member;

610. a main body portion; 620. a hand-held portion;

1000. a water tank.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described in the background art, when the existing detection device is used in a sewage tank to detect the sewage level, the existing detection device is easy to lose efficacy in a short time, and the liquid level measurement is influenced.

In order to solve the above problem, according to an aspect of the present invention, an embodiment of the present invention provides a liquid level detection device, as shown in fig. 1, the liquid level detection device includes a limiting member 100, a floating member 200 and a magnetic induction assembly 300, the limiting member 100 is configured to be installed on an inner surface of a side wall of a water tank 1000, and a limiting passage 101 communicating with an inner space of the water tank 1000 is provided in the limiting member 100; the floating piece 200 is arranged in the limiting channel 101, a gap is formed between the outer wall of the floating piece 200 and the inner wall of the limiting channel 101, and the floating piece 200 can float on the liquid level in the limiting channel 101 along with the lifting of the liquid level in the water tank 1000; the magnetic induction assembly 300 is used for being mounted on the outer surface of the side wall of the water tank 1000 and is arranged opposite to the limiting member 100 relative to the side wall of the water tank 1000, and the magnetic induction assembly 300 can generate magnetic induction with the floating member 200.

The embodiment of the utility model provides an in, this liquid level detection device utilizes the floating member 200 that sets up in spacing passageway 101 to go up and down along with the liquid level in step, and be provided with the interval between the outer wall of floating member 200 and the inner wall of spacing passageway 101, can prevent for a long time that floating member 200 from blocking in spacing passageway 101 because of the dirt (like silt, greasy dirt etc.) in the sewage, through the position that magnetic induction assembly 300 that is located the water tank 1000 outer wall responded to floating member 200, and then realize the liquid level detection to liquid in the water tank 1000, this liquid level detection device is when being used for detecting the sewage liquid level, can exert a long time ground.

It can be understood that the limiting member 100 is disposed inside the water tank 1000, and the limiting member 100 has a limiting channel 101 therein, which is communicated with the inner space of the water tank 1000, and the liquid level in the water tank 1000 can be known through the liquid level in the limiting channel 101 when the liquid in the water tank 1000 enters the limiting channel 101. Along with the rise or the decline of liquid level, floating piece 200 also can rise or descend in spacing passageway 101 in step, and at this moment, can learn the liquid level of liquid through the position of magnetic induction subassembly 300 induction floating piece 200.

The limiting member 100 is used for limiting the lifting track of the floating member 200 through the limiting channel 101, so that the floating member 200 is always close to the inner side surface of the side wall of the water tank 1000 in the process of lifting along with the liquid level, and the magnetic induction assembly 300 positioned on the other side (namely the outer side surface) of the side wall of the water tank 1000 can generate magnetic induction with the floating member 200, thereby detecting the height of the liquid level.

Meanwhile, it is conceivable that the liquid level detection device arranges the magnetic induction assembly 300 containing electronic components outside the water tank 1000, so that the situation that the electronic components in the magnetic induction assembly 300 are in contact with liquid to cause corrosion, short circuit and the like can be avoided, and the service life of the liquid level detection device is prolonged.

In one embodiment, as shown in FIGS. 1-3, the spacing is no less than 3mm.

The interval of not less than 3mm is set up between the outer wall of floating member 200 and the inner wall of spacing passageway 101, compares in floating member 200 and spacing passageway 101 sliding connection's mode, can prevent for a long time that floating member 200 from because of the dirt card in the sewage in the water tank 1000 in spacing passageway 101.

It should be noted that the interval between the outer wall of the floating member 200 and the inner wall of the limiting channel 101 cannot be too large, so as to prevent the limiting channel 101 from being unable to better limit the floating member 200, and thus the floating member 200 floats far away from the side wall of the water tank 1000, so that the magnetic induction assembly 300 cannot accurately sense the position of the floating member 200.

In one embodiment, as shown in fig. 2-4, the outer surface of the float 200 has a tip 2011.

Through the design, the contact area of the floating piece 200 when the floating piece touches the inner wall of the limit channel 101 in the process of ascending and descending along with the liquid level in the limit channel 101 can be reduced, and the floating piece 200 can be further prevented from being clamped in the limit channel 101 due to dirt in sewage in the water tank 1000 for a long time, so that the limiting piece 100 and the floating piece 200 positioned in the sewage can play a role for a long time.

In a specific embodiment, as shown in fig. 2-4, the outer surface of the floating member 200 includes two end surfaces 201 disposed opposite to each other and a peripheral side surface 202 connected between the two end surfaces 201, and two tips 2011 are disposed on the two end surfaces 201 respectively.

Specifically, the tip 2011 may be a conical protrusion, and the tip 2011 is integrally formed with the end surface 201 and protrudes outward from the middle of the end surface 201.

In one embodiment, as shown in FIG. 2, the floatation member 200 includes a housing 210 and a magnet 220 disposed within the housing 210.

The housing 210 is made of a light material, and can float on the water surface to provide buoyancy for the magnet 220. The housing 210 may be a solid structure or a hollow structure.

Specifically, the magnet 220 may be a neodymium iron boron magnet with strong magnetism, and the shape of the magnet may be designed as a square, a circle, or a sphere, and the magnet 220 may be fixed at the center inside the housing 210 by an adhesive or a fixing structure provided inside the housing 210.

In a specific embodiment, the housing 210 and the position-limiting member 100 of the floating member 200 are made of Polyvinyl chloride (PVC), which has strong corrosion resistance to oxidant, reductant and strong acid, is firm and durable, has low cost, and is especially suitable for use in sewage environment.

In a specific embodiment, as shown in fig. 2-4, the cross section of the limiting channel 101 is rectangular, the outer shell 210 of the floating member 200 includes a left shell and a right shell, the left shell and the right shell are buckled or adhered to each other to form a round cake-shaped hollow shell with a closed cavity inside, and the magnet 220 is clamped between the left shell and the right shell. The end surfaces 201 of the left and right housings form opposite end surfaces 201 of the outer surface of the floating member 200, the peripheral side walls of the left and right housings form a peripheral side surface 202 connected between the two end surfaces 201, and the end surfaces 201 of the left and right housings are each in the form of an outwardly convex conical surface to form a tip 2011.

In one embodiment, as shown in fig. 1-2 and 5, the magnetic induction assembly 300 includes a circuit board 310 and a plurality of hall switches 320 disposed on the circuit board 310 at intervals along a length direction parallel to the position limiting channel 101.

By arranging the magnetic induction assembly 300 as above, the structure is simple and the cost is low. The strip-shaped circuit board 310 may be fixedly mounted to the outer surface of the sidewall of the water tank 1000 by screws 500.

When the water level in the water tank 1000 changes, the floating member 200 also rises or falls, the corresponding hall switches 320 on the circuit board 310 are influenced by the magnetic force of the floating member 200 to output electric signals, and because the distance between each hall switch 320 and the bottom of the water tank 1000 is known, the electric signals output by the corresponding hall switches 320 are collected by a processor such as a single chip microcomputer, and the height of the water level in the water tank 1000 can be judged.

In one specific embodiment, as shown in FIG. 5, adjacent Hall switches 320 are equally spaced.

The hall switches 320 are arranged at equal intervals, which is beneficial to improving the measurement precision.

It should be noted that the specific number and the distance between the hall switches 320 can be set according to actual requirements, and can be adjusted arbitrarily, so as to distinguish the position of the liquid level more accurately.

In one embodiment, as shown in fig. 1-3 and 6, the length of the restriction channel 101 is perpendicular to the liquid surface.

Compared with the inclined arrangement of the limiting channel 101, the design has the advantages that the length of the limiting channel 101 can be shortened, the material and manufacturing cost of the limiting piece 100 are saved, and meanwhile, the floating piece 200 can better float up and down along with the lifting of the liquid level in the limiting channel 101.

In a specific embodiment, as shown in fig. 6, one end of the limiting channel 101 close to the bottom of the water tank 1000 is provided with a lower port 102, one end of the limiting channel 101 far from the bottom of the water tank 1000 is provided with an upper port 103, the limiting member 100 is provided with a side opening 104 communicated with the inside of the limiting channel 101, and the side opening 104 extends from the lower port 102 to the upper port 103 along a length direction parallel to the limiting channel 101.

Through designing as above for the liquid in the water tank 1000 can get in and out spacing passageway 101 better, simultaneously, can also clear up the dirt of the inner wall deposit of spacing passageway 101 more conveniently through side opening 104.

In a further specific embodiment, as shown in fig. 7-8, the liquid level detection device further includes a dirt cleaning member 600, the dirt cleaning member 600 includes a main body portion 610 and a handheld portion 620 connected to the main body portion 610, the shape of the main body portion 610 is adapted to the cross-sectional shape of the limiting channel 101, when the main body portion 610 is placed inside the limiting channel 101, the handheld portion 620 extends out of the limiting channel 101 from the side opening 104, the handheld portion 620 is pulled along the length direction of the limiting channel 101, and the main body portion 610 can slide in the limiting channel 101 and scratch the inner wall of the limiting channel 101.

The dirt cleaning piece 600 is convenient for workers to clean the dirt deposited on the inner wall of the limiting channel 101 quickly.

After this liquid level detection device used a certain period of time, for preventing that too much dirt of deposit influences floating member 200 and goes up and down smoothly along with the liquid level in the spacing passageway 101, take out floating member 200 in upper port 103 or lower port 102 from spacing passageway 101 earlier, main part 610 card with dirt clearance piece 600 advances the upper port 103 of spacing passageway 101 through the manual work, and make handheld portion 620 stretch out from side opening 104, pull handheld portion 620 and slide down to lower port 102 and drive main part 610 and pull out from lower port 102, can clear up the interior deposit dirt of spacing passageway 101 fast. Then the floating piece 200 is put back into the limit channel 101, so that the next long-time stable use of the liquid level detection device can be ensured.

Further, in order to facilitate the floating member 200 to be taken out of the limiting channel 101 during the cleaning process, as shown in fig. 4 and 8, the floating member 200 is connected with the upper end of the limiting member 100 or the upper end of the water tank 1000 through the connecting rope 400, wherein the length of the connecting rope 400 is greater than that of the limiting channel 101, so that the connecting rope 400 is prevented from limiting the floating member 200 to rise and fall with the liquid level, and the floating member 200 is conveniently pulled out of the limiting channel 101 through the connecting rope 400 during the cleaning process.

According to another aspect of the utility model, the embodiment of the utility model also provides a sewage storage device, this sewage storage device include water tank 1000 and as above-mentioned liquid level detection device, liquid level detection device sets up on water tank 1000.

Because the sewage storage equipment is provided with the liquid level detection device, the sewage storage equipment also has the advantages and benefits brought by the liquid level detection device, and the details are not repeated.

In conclusion, the liquid level detection device and the sewage storage equipment provided by the embodiment at least have the following beneficial technical effects:

this liquid level detection device utilizes the floating member 200 that sets up in spacing passageway 101 to go up and down along with the liquid level and go up and down in step, and be provided with the interval between the outer wall of floating member 200 and the inner wall of spacing passageway 101, can prevent for a long time that floating member 200 from blocking in spacing passageway 101 because of the dirt (like silt, greasy dirt etc.) in the sewage, the position of magnetic induction assembly 300 response floating member 200 through being located the water tank 1000 outer wall, and then realize the liquid level detection to liquid in the water tank 1000, this liquid level detection device is when being used for detecting the sewage liquid level, can play a role for a long time.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims (10)

1. A liquid level detection device, comprising:

the limiting piece is installed on the inner surface of the side wall of the water tank, and a limiting channel communicated with the inner space of the water tank is formed in the limiting piece;

the floating piece is arranged in the limiting channel, a gap is formed between the outer wall of the floating piece and the inner wall of the limiting channel, and the floating piece can float on the liquid level in the limiting channel along with the lifting of the liquid level in the water tank; and

the magnetic induction subassembly is used for installing the surface of the lateral wall of water tank and with the locating part is about the lateral wall of water tank sets up relatively, the magnetic induction subassembly can with the piece that floats produces the magnetic induction.

2. A liquid level detection apparatus as claimed in claim 1 wherein the spacing is not less than 3mm.

3. The liquid level detection device of claim 1, wherein an outer surface of the float member has a pointed end.

4. A liquid level detection apparatus as claimed in claim 3 wherein the outer surface of the float member comprises two oppositely disposed end surfaces and a peripheral side surface connected between the two end surfaces, the two tips being disposed on the two end surfaces respectively.

5. The liquid level detection device of claim 1, wherein the magnetic induction assembly comprises a circuit board and a plurality of Hall switches arranged on the circuit board at intervals along a length direction parallel to the limiting channel.

6. The liquid level detection device according to claim 5, wherein adjacent Hall switches are arranged at equal intervals.

7. The fluid level detection apparatus of any one of claims 1-6, wherein the length direction of the restriction channel is perpendicular to the fluid level.

8. The apparatus of claim 7, wherein an end of the position-limiting channel near the bottom of the water tank has a lower port, an end of the position-limiting channel far from the bottom of the water tank has an upper port, and the position-limiting member has a side opening communicating with an interior of the position-limiting channel, and the side opening extends from the lower port to the upper port along a length direction parallel to the position-limiting channel.

9. The liquid level detection device according to claim 8, further comprising a dirt cleaning member, wherein the dirt cleaning member comprises a main body part and a handheld part connected with the main body part, the main body part is matched with the cross section of the limiting channel in shape, the main body part is arranged in the inside of the limiting channel, the handheld part extends out of the side opening of the limiting channel, the handheld part is pulled in the length direction of the limiting channel, and the main body part can slide in the limiting channel and scratch the inner wall of the limiting channel.

10. A sewage storage apparatus comprising a water tank and a liquid level detection device as claimed in any one of claims 1 to 9, said liquid level detection device being provided on said water tank.

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