CN220649721U - Liquid level measuring probe - Google Patents
Liquid level measuring probe Download PDFInfo
- Publication number
- CN220649721U CN220649721U CN202322099979.XU CN202322099979U CN220649721U CN 220649721 U CN220649721 U CN 220649721U CN 202322099979 U CN202322099979 U CN 202322099979U CN 220649721 U CN220649721 U CN 220649721U
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- float
- bin
- liquid level
- measuring
- main body
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 239000000523 sample Substances 0.000 title claims abstract description 20
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a liquid level measuring probe, which relates to the technical field of liquid level sensors and comprises a float bin main body, wherein the upper end and the lower end of the float bin main body are respectively detachably connected with a float bin top cover and a float bin bottom cover; the measuring device comprises a float bin main body, a measuring tube, a reed pipe, a measuring float, a digital display device and a digital display device, wherein the measuring tube is arranged in the float bin main body; the bottom cover of the float bin is of a conical structure, and a water inlet hole is arranged on the bottom cover of the float bin. The utility model is provided with the float cabin main body, thereby effectively protecting the reed pipe, the measuring float and other devices and prolonging the service life thereof. And the bottom cover of the float bin is of a conical structure, so that the water resistance of the float bin can be reduced, and the float bin is convenient to quickly drain.
Description
Technical Field
The utility model relates to the technical field of liquid level sensors, in particular to a liquid level measuring probe.
Background
The liquid level is a key technological parameter in an industrial control system, and the types of sensors or transmitters for measuring the liquid level are various at present, but for special scenes of liquid with gas, foam, density gradient or large surface tension, the existing sensors are often interfered by measuring media, and the accurate liquid level cannot be detected.
The existing liquid level measuring sensor or transmitter can be divided into ultrasonic type, infrared type, piezoresistance type, electrode type and floating ball type. The ultrasonic wave adopts the wave reflection time to measure the liquid level, and when the liquid level of the liquid with a large amount of foam is measured, the liquid level value is interfered by the foam, and the measured liquid level value has great deviation; the infrared light also adopts reflection time to measure the liquid level, a reflecting plate is required to be placed on the liquid level during measurement, and the installation of the reflecting plate and the illuminator is limited in the environment with large liquid level area or limited measuring channel, if the installation has deviation, the infrared light cannot measure the accurate liquid level; the piezoresistive transducer converts liquid level data into liquid level data according to the Pascal pressure principle, and the deviation of a liquid level value is large when the dynamic and static liquid level fall is large in a scene with a density gradient; the electrode type liquid level meter detects the liquid level through the conductivity of the liquid, and for a scene with large surface tension, the electrode still cannot be disconnected after the liquid level falls back, so that measurement errors or measurement results are seriously delayed.
Compared with the prior reed switch liquid level sensor (belonging to a floating ball type) is not easily affected by a measuring medium, and the measuring precision is relatively accurate.
The existing reed pipe liquid level sensor is shown as a reed pipe liquid level meter disclosed in the patent number CN203364930U, and comprises a measuring rod and a measuring device, wherein the measuring device is arranged on the measuring rod. The measuring device comprises a fixing device, a reed pipe and a floater with a magnet. The fixing device is arranged on the measuring rod and above the reed pipe and used for limiting the movement of the floater with the magnet. The float with the magnet moves on the measuring rod along with the liquid level, and when the float with the magnet moves to the position of the reed pipe, the contact of the reed pipe acts to connect the reed pipe to a corresponding control circuit to realize automatic display and control of the liquid level.
However, the existing reed pipe liquid level sensor is not provided with a shell outside for protection, so that the floater is easily damaged, and in the process of launching, the area of the limiting plate is large, and the resistance of a part of the limiting plate is possibly increased when the limiting plate contacts with water, so that the whole device is not easy to launch.
Therefore, there is an urgent need in the market for a new type of liquid level measurement probe to solve the above problems.
Disclosure of Invention
The utility model aims to provide a liquid level measuring probe which is used for solving the technical problems in the prior art, can effectively protect a measuring tube and a measuring floater, and can reduce the water resistance so as to facilitate the water drainage.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model discloses a liquid level measuring probe, which comprises a float bin main body, wherein the upper end and the lower end of the float bin main body are respectively detachably connected with a float bin top cover and a float bin bottom cover;
the float bin body is internally provided with a measuring tube, a reed pipe is arranged in the measuring tube, a measuring float is sleeved on the outer side of the measuring tube, the measuring float can move along the axial direction of the measuring tube, and the reed pipe is electrically connected with the digital display device;
the bottom cover of the float bin is of a conical structure, and a water inlet hole is formed in the bottom cover of the float bin.
Preferably, a cable through hole is formed in the top cover of the float cabin, the reed switch is electrically connected with the digital display device through a connecting cable, and the connecting cable penetrates through the cable through hole.
Preferably, two limiting plates are fixed on the measuring tube, and the two limiting plates are respectively positioned on the upper side and the lower side of the measuring floater.
Preferably, a plurality of exhaust holes are arranged on the side wall of the float chamber main body.
Preferably, the exhaust holes are provided with four exhaust holes.
Preferably, the float cabin body is of a cylindrical structure.
Preferably, the float chamber body is made of stainless steel.
Preferably, the top cover of the float cabin and the bottom cover of the float cabin are both in threaded connection with the main body of the float cabin.
Compared with the prior art, the utility model has the following technical effects:
the utility model can effectively protect structures such as the measuring tube, the measuring floater and the like through the floater bin main body, and the conical floater bin bottom cover can facilitate good water drainage and reduce water drainage resistance. In addition, the influence of medium interference on the dry reed type liquid level measurement equipment is small, so that the measurement accuracy can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a liquid level measurement probe according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a fluid level measurement probe according to an embodiment of the present utility model;
in the figure: 1-a float chamber body; 101-an exhaust hole; 2-measuring tube; 3-measuring the float; 4-limiting plates; 5-a bottom cover of the float bin; 501-a water inlet hole; 6-a top cover of the float bin; 601-cable through holes; 7-connecting cables.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a liquid level measuring probe which is used for solving the technical problems in the prior art, can effectively protect a measuring tube and a measuring floater, and can reduce the water resistance so as to facilitate the water drainage.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-2, the present embodiment provides a liquid level measuring probe, which comprises a float chamber main body 1, wherein the upper end and the lower end of the float chamber main body 1 are detachably connected with a float chamber top cover 6 and a float chamber bottom cover 5 respectively.
Be equipped with survey buret 2 in the float storehouse main part 1, be equipped with the tongue tube in survey buret 2, the outside cover of survey buret 2 is equipped with and measures float 3, and the material of measuring float 3 can select according to actual conditions, and in order to can trigger the tongue tube, also can add magnet in measuring float 3, measure float 3 and can reciprocate along the axial direction of survey buret 2, the tongue tube is connected with the digital display device electricity for with monitoring data transmission for the digital display device, the digital display device can be current numerical control screen can, be used for receiving relevant data in real time.
The bottom cover 5 of the float chamber is in a conical structure, and as shown in fig. 2, the diameter of the upper end of the bottom cover 5 of the float chamber is larger than that of the lower end. It should be noted that, the lower end of the bottom cover 5 of the float cabin is not a tip structure, but a plane or an arc surface, so that the bottom cover 5 of the float cabin is provided with a water inlet 501, which is convenient for water to enter, and meanwhile, prevents the tip structure from scratching a user. The bottom cover 5 of the float cabin has three functions, namely, the measured medium can be uniformly introduced into the float cabin main body 1, and the medium can be ensured to be contacted with the reed switch; secondly, when the float bin main body 1 leaves the medium, the probe bin is ensured to have no retention medium; thirdly, the float chamber body 1 can smoothly enter a smaller measuring space.
In actual use, after each device is assembled, the float chamber main body 1 can be put into water. In the process of launching, water can enter the inside of the float cabin main body 1 from the water inlet 501, along with the gradual increase of water in the float cabin main body 1, the measuring float 3 can also gradually move upwards, when the measuring float 3 rises to the expected height, the contact closure of the reed switch can be triggered, and at the moment, the reed switch can also transmit corresponding signals to the digital display device. When the staff takes out the float cabin body 1 after the measurement is finished, water in the float cabin body 1 flows out from the water inlet 501, the measuring float 3 drops along with the drop of the liquid level, and the contact of the reed switch is opened. In addition, the switching signal of the reed switch contact can also be used for other links of industrial control or measurement.
In this embodiment, a cable through hole 601 is provided on the top cover 6 of the float chamber, the reed switch is electrically connected with the digital display device through a connecting cable 7, and the connecting cable 7 passes through the cable through hole 601. The main function of the top cover 6 of the float cabin is to realize the sealing and penetrating out of the connecting cable 7 and prevent the problem of short circuit caused by medium entering.
In this embodiment, two limiting plates 4 are fixed on the measuring tube 2, and the two limiting plates 4 are respectively located at the upper side and the lower side of the measuring float 3, so as to perform a limiting function on the measuring float 3 and prevent the measuring float 3 from slipping off from the measuring tube 2.
In this embodiment, a plurality of exhaust holes 101 are provided on the side wall of the float chamber body 1. In the measuring process, along with the fluctuation of the liquid level, gas or foam can be sealed into the float chamber main body 1, and the vent hole 101 has the function of timely discharging the air retained at the upper part of the float chamber main body 1, so that the accuracy of liquid level measurement is improved.
In this embodiment, four exhaust holes 101 are provided, and the four exhaust holes 101 are uniformly distributed on four sides of the side wall of the float chamber body 1. Of course, those skilled in the art can also adjust the specific number of the exhaust holes 101 according to actual needs, and is not limited to four.
In this embodiment, the float chamber body 1 has a cylindrical structure, and has a length of 15cm and a diameter of 15cm. The functions of the device mainly comprise two functions, namely the fixing of the measuring tube 2 and the reed pipe on the measuring tube is realized, and the detachable connection of the measuring tube and the float bin top cover 6 and the float bin bottom cover 5 is convenient for replacing measuring floats 3 made of different materials; secondly, the exhaust hole 101 is arranged, and gas or foam in the float chamber main body 1 is sealed when the float chamber main body 1 contacts the liquid level of the medium, so that the measurement precision is improved.
In this embodiment, the float chamber body 1 is made of stainless steel, and other metal materials, such as copper, can be replaced by those skilled in the art.
In the embodiment, the top cover 6 and the bottom cover 5 of the float cabin are in threaded connection with the main body 1 of the float cabin, so that the installation and the disassembly are convenient, and the replacement of all parts in the main body 1 of the float cabin is convenient.
In general, the float chamber body 1 is not only a reed pipe and a protective body of the measuring float 3, but also plays a role of a heavy hammer. The float cabin main body 1 can straighten the measuring cable through self gravity during liquid measurement, so that accurate measurement is realized. And the float bin top cover 6 and the float bin bottom cover 5 adopt structures, and the float bin main body 1 adopts a cylindrical structure, so that the whole body is in a spindle shape, the spindle-shaped structure is convenient for the float bin main body 1 to freely move in a limited space or a narrow space of a measuring channel, and the problem that the float bin main body 1 is blocked in the measuring channel can not occur.
The principles and embodiments of the present utility model have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present utility model and its core ideas; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the utility model.
Claims (8)
1. A liquid level measurement probe, characterized in that: the floating bin comprises a floating bin main body, wherein the upper end and the lower end of the floating bin main body are respectively detachably connected with a floating bin top cover and a floating bin bottom cover;
the float bin body is internally provided with a measuring tube, a reed pipe is arranged in the measuring tube, a measuring float is sleeved on the outer side of the measuring tube, the measuring float can move along the axial direction of the measuring tube, and the reed pipe is electrically connected with the digital display device;
the bottom cover of the float bin is of a conical structure, and a water inlet hole is formed in the bottom cover of the float bin.
2. The liquid level measurement probe of claim 1, wherein: the float cabin top cover is provided with a cable through hole, the reed switch is electrically connected with the digital display device through a connecting cable, and the connecting cable passes through the cable through hole.
3. The liquid level measurement probe of claim 1, wherein: two limiting plates are fixed on the measuring tube and are respectively positioned on the upper side and the lower side of the measuring floater.
4. The liquid level measurement probe of claim 1, wherein: the side wall of the float cabin main body is provided with a plurality of exhaust holes.
5. The liquid level measurement probe of claim 4, wherein: the exhaust holes are provided with four exhaust holes.
6. The liquid level measurement probe of claim 1, wherein: the float cabin body is of a cylindrical structure.
7. The liquid level measurement probe of claim 1, wherein: the float bin main body is made of stainless steel.
8. The liquid level measurement probe of claim 1, wherein: the top cover of the float bin and the bottom cover of the float bin are in threaded connection with the main body of the float bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099979.XU CN220649721U (en) | 2023-08-04 | 2023-08-04 | Liquid level measuring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099979.XU CN220649721U (en) | 2023-08-04 | 2023-08-04 | Liquid level measuring probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220649721U true CN220649721U (en) | 2024-03-22 |
Family
ID=90266710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322099979.XU Active CN220649721U (en) | 2023-08-04 | 2023-08-04 | Liquid level measuring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220649721U (en) |
-
2023
- 2023-08-04 CN CN202322099979.XU patent/CN220649721U/en active Active
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