CN219200552U - Light and small capacitive liquid level sensor - Google Patents
Light and small capacitive liquid level sensor Download PDFInfo
- Publication number
- CN219200552U CN219200552U CN202223603796.9U CN202223603796U CN219200552U CN 219200552 U CN219200552 U CN 219200552U CN 202223603796 U CN202223603796 U CN 202223603796U CN 219200552 U CN219200552 U CN 219200552U
- Authority
- CN
- China
- Prior art keywords
- nut
- hinge plate
- liquid level
- hinged
- level sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a light and small capacitive liquid level sensor, which comprises an outer protective tube; the upper half part of the outer protective tube is provided with a clamping assembly for clamping the top wall of the container, and the clamping assembly comprises a first hinged plate, a second hinged plate and a third hinged plate; the lower end of the first hinge plate is hinged on the outer wall of the outer protection tube, the lower end of the second hinge plate is hinged with the upper end of the first hinge plate, and the upper end of the second hinge plate is hinged with the lower end of the third hinge plate; the outer wall of the outer protective tube is provided with a first nut in a screwing way, wherein the first nut is used for driving the first hinged plate and the second hinged plate to bend; the outer wall of the outer protective tube is provided with a second nut in a screwing way, and the second nut is used for pressing the top wall outside the container; the first nut is located the upper end of third hinge plate, and the second nut is located the upper end of first nut. According to the utility model, holes are not needed, and internal threads are not needed to be arranged, so that the capacitive liquid level sensor can be easily fixed on the container, and the later disassembly, assembly and maintenance are very convenient.
Description
Technical Field
The utility model relates to the technical field of liquid level sensors, in particular to a light and small capacitive liquid level sensor.
Background
In modern industry, instruments and meters are important tools for detecting the running condition of equipment, such as a liquid level meter, which is a measuring instrument for detecting the liquid level in a container, in the present stage, the liquid level meter is mainly divided into concentrated types of magnetic levitation type, pressure type, ultrasonic type and the like, with the continuous development of technology, the capacitive type liquid level meter is gradually and widely used, the working principle is that the position change of a measured object is converted into capacitance for measurement, and the liquid level meter has the advantages of high resolution, quick dynamic response and the like.
In the traditional capacitive liquid level meter, when the capacitive liquid level meter is installed in a container, two main modes exist, one mode is that a circle of threaded holes are formed in the top wall of the container in advance, and a similar flange plate arranged on the capacitive liquid level meter is connected with the threaded holes in a screw connection mode, and a plurality of screws are required to be detached for each disassembly and assembly in the mode, so that inconvenience is brought; in addition, the capacitive liquid level meter is directly arranged on the communication hole in a rotating mode, and only the capacitive liquid level meter is rotated, however, internal threads are not arranged on all the communication holes, so that the capacitive liquid level meter is not easy to adapt, and is inconvenient to install. In addition, the display panel on the capacitance displacement meter after rotation is not necessarily just faced to the side easy to observe, which affects the observation.
Besides, for special occasions, the weight of the capacitive liquid level meter is important, such as unmanned aerial vehicle industry and the like; most of the existing capacitive liquid level meters are heavy in weight, and normal operation of original equipment is affected frequently.
Disclosure of Invention
The utility model aims to provide a light and small capacitive liquid level sensor so as to solve the problem that a capacitive liquid level meter transmitting power is inconvenient to install and detach.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a light and small capacitive liquid level sensor comprises a shell, a shell cover, an inner core and an outer protection tube;
the inside of the shell is provided with a cavity, a shell cover is arranged above the shell in a rotating way, and the shell cover is provided with a communication hole for the cable to pass through;
the inner core is arranged inside the outer protection tube, and the upper end of the outer protection tube is arranged inside the shell; the upper half part of the outer protective tube is provided with a clamping assembly for clamping the top wall of the container, and the clamping assembly comprises a first hinged plate, a second hinged plate and a third hinged plate; the lower end of the first hinge plate is hinged to the outer wall of the outer protection pipe, the lower end of the second hinge plate is hinged to the upper end of the first hinge plate, and the upper end of the second hinge plate is hinged to the lower end of the third hinge plate; the outer wall of the outer protective tube is provided with a first nut in a rotating mode, wherein the first nut is used for driving the first hinge plate and the second hinge plate to bend; the outer wall of the outer protective tube is provided with a second nut in a screwing mode, and the second nut is used for pressing the top wall of the outer part of the container; the first nut is located at the upper end of the third hinge plate, and the second nut is located at the upper end of the first nut.
Further, the outer protective tube is of a ladder-shaped structure, and the outer diameter of the upper half part of the protective tube is smaller than that of the lower half part of the protective tube; the clamping assembly is arranged at the position with smaller outer diameter in the protection tube.
Further, the clamping assembly is provided with three groups in total; the three groups of clamping assemblies are circumferentially arranged at intervals around the protective tube;
the upper ends of the third hinging plates are respectively connected with the connecting rings; the connecting ring is sleeved on the outer protection pipe.
Further, a sleeve for abutting against the top wall of the container exterior is provided on the underside of the second nut.
Further, a first annular rubber cushion is arranged at the upper end of the outer protection tube, and a second annular rubber cushion is arranged above the first annular rubber cushion; a pressing jackscrew is arranged above the second annular rubber cushion; the pressing jackscrew is arranged on the shell in a screwing mode.
Further, a wire protecting sleeve is arranged in the communication hole.
The utility model has the beneficial effects that:
this use is novel need not to punch, need not to set up the internal thread, can easily fix capacitive liquid level sensor on the container for it is very convenient during the dismouting maintenance of later stage.
In addition, the shell and the shell cover are made of polysulfone resin, so that the weight of the whole device is greatly reduced, a feasible technical means is provided for special application occasions such as unmanned aerial vehicles, and the problem that the weight affects the normal operation of original equipment is avoided.
Drawings
FIG. 1 is a schematic view (cross-sectional view) of the overall structure of the utility model;
FIG. 2 is a schematic diagram of the overall structure of the utility model;
FIG. 3 is a schematic view of the structure of the clamping assembly, the first nut, the second nut and the outer protective tube in the utility model;
FIG. 4 is an enlarged schematic view of a portion of FIG. 3 at A;
fig. 5 is a partially enlarged schematic view of fig. 3 at B.
Name corresponding to each label in the figure:
1. the shell comprises a shell body, a shell body cover, a shell body, a shell wire protecting sleeve, a pressing jackscrew, a second annular rubber cushion, a first annular rubber cushion, a second annular rubber cushion, a first outer protecting tube, a second outer protecting tube, a first inner core, a second inner core, a first nut, a second nut, a first sleeve, a second sleeve, a first hinge plate, a second hinge plate, a third hinge plate and a connecting ring.
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 are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
Embodiments of the utility model:
as shown in fig. 1-5, a lightweight and compact capacitive liquid level sensor includes a housing 1, a housing cover 2, an inner core 8, and an outer protective tube 7.
The inside of the shell 1 is provided with a cavity, a shell cover 2 is arranged above the shell 1 in a rotating way, and a communication hole for the cable to pass through is arranged on the shell cover 2; the casing 1 is provided with a circuit part inside, and the structure and the working principle of the circuit part are all in the prior art, and are not described in detail in this embodiment.
The inner core 8 is arranged inside the outer protection tube 7, and the upper end of the outer protection tube 7 is arranged inside the shell 1. When the liquid level measuring device works, the outer protective tube 7 is arranged in the liquid, and when the liquid level of the measured medium in the container changes, the capacitance value between the inner core 8 and the measured medium is promoted to change, and a signal of the liquid level is converted into a signal of the liquid level to be output to the outside.
As shown in fig. 3 to 5, the upper half of the outer protective tube 7 is provided with a clamping assembly for clamping the inner top wall of the container, and the clamping assembly comprises a first hinge plate 12, a second hinge plate 13 and a third hinge plate 14; the lower end of the first hinged plate 12 is hinged on the outer wall of the outer protective tube 7, the lower end of the second hinged plate 13 is hinged with the upper end of the first hinged plate 12, and the upper end of the second hinged plate 13 is hinged with the lower end of the third hinged plate 14; the outer wall of the outer protective tube 7 is provided with a first nut 9 which is used for driving the first hinged plate 12 and the second hinged plate 13 to bend; the outer wall of the outer protective tube 7 is provided with a second nut 10 in a screwing way, and the second nut is used for pressing the top wall outside the container; the first nut 9 is located at the upper end of the third hinge plate 14, and the second nut 10 is located at the upper end of the first nut 9.
The outer protective tube 7 is of a ladder-shaped structure, and the outer diameter of the upper half part of the protective tube is smaller than that of the lower half part of the protective tube; the joint subassembly sets up the less position department of external diameter in the protective tube.
The lower end of the first hinge plate 12 is hinged on the part with smaller outer diameter at the step fault, so that the outer protection tube 7 is in a step structure, and the outer diameter of the outer protection tube 7 after the clamping assembly is added is ensured to be in the same size as much as possible, so that the phenomenon that the diameter of the outer protection tube 7 is different due to the clamping assembly and the phenomenon that the outer protection tube enters the shell 1 through the communication hole is avoided.
In this embodiment, three groups of clamping components are provided; the three groups of clamping assemblies are circumferentially arranged at intervals around the protective pipe; the upper ends of the third hinging plates 14 are provided with connecting rings 15, and the upper ends of the three third hinging plates 14 are connected with the connecting rings 15; the connecting ring 15 is sleeved on the outer protective tube 7.
In order to ensure that the first hinge plate 12 and the second hinge plate 13 can extend in a direction far away from the outer protection tube 7 when performing hinge motion, a protrusion is arranged at a position where the upper end of the first hinge plate 12 and the lower end of the second hinge plate 13 are hinged to each other in the outer protection tube 7, the protrusion is integrally arranged with the outer protection tube 7, under the action of the protrusion, when the connecting ring 15 is positioned at a relatively upper place as far as possible, the upper end of the first hinge plate 12 and the lower end of the second hinge plate 13 incline in a direction far away from the outer protection tube 7 slightly, and at the moment, if the connecting ring 15 is pressed downwards at the first time, the upper end of the first hinge plate 12 and the lower end of the second hinge plate 13 move in a direction far away from the outer protection tube 7. Rather than seizing on the outer wall of the outer protective tube 7. The protrusions are arranged in three corresponding to the three groups of clamping components.
The lower side of the second nut 10 is provided with a sleeve 11 for abutment against the top wall of the container outside, the lower edge of the sleeve 11 will abut against the outside of the top wall of the container.
The upper end of the outer protection pipe 7 is provided with a first annular rubber cushion 6, the first annular rubber cushion 6 and the outer protection pipe 7 are fixedly arranged together, and a second annular rubber cushion 5 is arranged above the first annular rubber cushion 6; a pressing jackscrew 4 is arranged above the second annular rubber cushion 5; the compression jackscrew 4 is arranged on the shell 1 in a rotating way, and a round hole is formed in the compression jackscrew 4; the position of the shell 1 connected with the outer protection pipe 7 is in a stepped hole structure, and the lower side of the first annular rubber cushion 6 is just overlapped in the stepped hole.
The communication hole is provided with a wire protecting sleeve 3.
In this embodiment, in order to ensure that the weight of the whole device is as light as possible, the casing 1 and the casing cover 2 are preferably made of polysulfone resin, the first annular rubber pad 6 is preferably made of nitrile rubber, and the second annular rubber pad 5 is preferably made of tetrafluoro.
Working principle:
during installation, the first nut 9 and the second nut 10 are firstly screwed upwards, then the outer protective tube 7 is inserted from a communication hole reserved above the container, after the insertion, the first nut 9 is firstly screwed downwards, the first nut 9 is gradually screwed downwards along with the continuous screwing of the first nut 9, the connecting ring 15 is gradually pressed downwards by the first nut 9, after the clamping ring is pressed, the upper end of the first hinge plate 12 and the lower end of the second hinge plate 13 gradually move outwards far from the outer protective tube 7, and finally, the first hinge plate 12 and the second hinge plate 13 which are almost horizontal in stroke are formed; at this time, the second nut 10 is screwed downwards, the sleeve 11 arranged below the second nut 10 will gradually abut against the outer wall of the top of the container, and as the second nut 10 is screwed, the three second hinge plates 13 close to the horizontal state will be tightly attached to the top wall of the container, so that the whole capacitive liquid level sensor is clamped on the top wall of the container by matching with the external sleeve 11.
Claims (6)
1. A light and small capacitive liquid level sensor, characterized in that: comprises a shell, a shell cover, an inner core and an outer protective tube;
the inside of the shell is provided with a cavity, a shell cover is arranged above the shell in a rotating way, and the shell cover is provided with a communication hole for the cable to pass through;
the inner core is arranged inside the outer protection tube, and the upper end of the outer protection tube is arranged inside the shell;
the upper half part of the outer protective tube is provided with a clamping assembly for clamping the top wall of the container, and the clamping assembly comprises a first hinged plate, a second hinged plate and a third hinged plate; the lower end of the first hinge plate is hinged to the outer wall of the outer protection pipe, the lower end of the second hinge plate is hinged to the upper end of the first hinge plate, and the upper end of the second hinge plate is hinged to the lower end of the third hinge plate; the outer wall of the outer protective tube is provided with a first nut in a rotating mode, wherein the first nut is used for driving the first hinge plate and the second hinge plate to bend; the outer wall of the outer protective tube is provided with a second nut in a screwing mode, and the second nut is used for pressing the top wall of the outer part of the container; the first nut is located at the upper end of the third hinge plate, and the second nut is located at the upper end of the first nut.
2. A lightweight, compact, capacitive liquid level sensor as claimed in claim 1, wherein: the outer protection pipe is of a ladder-shaped structure, and the outer diameter of the upper half part of the protection pipe is smaller than that of the lower half part of the protection pipe; the clamping assembly is arranged at the position with smaller outer diameter in the protection tube.
3. A lightweight, compact, capacitive liquid level sensor as claimed in claim 2, wherein: the clamping assembly is provided with three groups; the three groups of clamping assemblies are circumferentially arranged at intervals around the protective tube;
the upper ends of the third hinging plates are respectively connected with the connecting rings; the connecting ring is sleeved on the outer protection pipe.
4. A lightweight, compact, capacitive liquid level sensor as claimed in claim 1, wherein: the lower side of the second nut is provided with a sleeve for abutting against the top wall of the container.
5. A lightweight, compact, capacitive liquid level sensor as claimed in claim 1, wherein: the upper end of the outer protection pipe is provided with a first annular rubber cushion, and a second annular rubber cushion is arranged above the first annular rubber cushion; a pressing jackscrew is arranged above the second annular rubber cushion; the pressing jackscrew is arranged on the shell in a screwing mode.
6. A lightweight, compact, capacitive liquid level sensor as claimed in claim 1, wherein: and a wire protecting sleeve is arranged in the communication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223603796.9U CN219200552U (en) | 2022-12-30 | 2022-12-30 | Light and small capacitive liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223603796.9U CN219200552U (en) | 2022-12-30 | 2022-12-30 | Light and small capacitive liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219200552U true CN219200552U (en) | 2023-06-16 |
Family
ID=86725894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223603796.9U Active CN219200552U (en) | 2022-12-30 | 2022-12-30 | Light and small capacitive liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219200552U (en) |
-
2022
- 2022-12-30 CN CN202223603796.9U patent/CN219200552U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110954259A (en) | Gasket sensor based on optical fiber microbend loss | |
| CN219200552U (en) | Light and small capacitive liquid level sensor | |
| CN100425942C (en) | Luminous inside micrometer used for steam turbine three cylinders jointing and internal sleeve finding | |
| CN209126636U (en) | A kind of fixed device of automobile cylinder shape sensor | |
| CN209961346U (en) | Pipe wall type temperature transmitter | |
| CN105092125A (en) | Torque sensor mounting structure | |
| CN212843851U (en) | Train water level sensor with built-in waterproof structure | |
| CN201583716U (en) | Collimation lens positioning mechanism | |
| CN209979084U (en) | Sensor probe installation mechanism for detecting medium temperature in pipeline | |
| CN214538342U (en) | Thread type pressure transmitter | |
| CN214538074U (en) | Electromagnetic flowmeter convenient to disassemble and assemble | |
| CN112304475A (en) | Controllable contact pin type pressure sensor for pressure detection | |
| CN220170267U (en) | Sensor fixing and protecting device | |
| CN213541591U (en) | Thick-wall high-pressure-resistant seamless stainless steel corrugated pipe connecting device | |
| CN216846686U (en) | Industrial pressure transmitter convenient to reading | |
| CN211121710U (en) | Torque signal detection system of torque sensor | |
| CN214200293U (en) | Single-flange capacitive liquid level transmitter | |
| CN211978143U (en) | Waterproof temperature-detecting device easy to disassemble | |
| CN219607984U (en) | Wireless displacement sensor | |
| CN215677372U (en) | Force measuring instrument for bolt stretcher | |
| CN218211728U (en) | Remote transmission pressure sensor convenient to gather | |
| CN212779281U (en) | Metal casing gas medium ultrasonic sensor | |
| CN210741729U (en) | Pressure transmitter measuring device | |
| CN219015454U (en) | Hydraulic pump shaft vibration detection device | |
| CN201215491Y (en) | Probe device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |