CN218097965U - Liquid level sensor calibration tool - Google Patents
Liquid level sensor calibration tool Download PDFInfo
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- CN218097965U CN218097965U CN202222237446.9U CN202222237446U CN218097965U CN 218097965 U CN218097965 U CN 218097965U CN 202222237446 U CN202222237446 U CN 202222237446U CN 218097965 U CN218097965 U CN 218097965U
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- level sensor
- liquid level
- sensor calibration
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Abstract
The utility model relates to a sensor calibration technique especially relates to a liquid level sensor calibration tool, include: a base; the fixing assembly is arranged on the base and used for detachably clamping the measuring conduit; the moving piece is connected with a vertical linear driving source and can vertically reciprocate to drive the magnetic floating ball to move relative to the measuring guide pipe; wherein, a notch part is formed on the moving part, and the width dimension of the notch part is larger than the outer diameter of the measuring conduit and smaller than the outer diameter of the magnetic floating ball; on being fixed in the base with level sensor's measurement pipe through fixed subassembly, be formed with the notch portion on the moving member, the lower extreme that vertical upward removal and pass measurement pipe can be followed to the moving member to drive level sensor's magnetism floater moves along vertical relative measurement pipe, and then can detect the calibration to level sensor, and whole calibration process need not to arrange level sensor in the aquatic and detects, conveniently detects the packing storage after, and can also ensure the uniformity that detects the calibration condition.
Description
Technical Field
The utility model relates to a sensor calibration technique especially relates to a liquid level sensor calibration tool.
Background
Level sensors are important instruments for measuring liquid level, the measurement precision of which directly affects the measurement result of liquid level data, and the level sensors are generally classified into two types: one type is a contact type, and comprises a single-flange static pressure/double-flange differential pressure liquid level sensor, a floating ball type liquid level sensor, a magnetic liquid level sensor, a drop-in type liquid level sensor, an electric inner floating ball liquid level sensor, an electric floating drum liquid level sensor, a capacitance type liquid level sensor, a magnetostrictive liquid level sensor, a servo liquid level sensor and the like. The second type is non-contact type, and is classified into ultrasonic liquid level sensor, radar liquid level sensor and the like.
The float ball type liquid level sensor consists of magnetic float ball with specific weight smaller than 0.5, measuring pipe capable of floating on liquid level and moving up and down along the measuring pipe, electronic unit, terminal box and installing part, and the measuring element inside the pipe can convert the measured liquid level signal into resistance signal proportional to the liquid level change under the action of external magnetism and convert the electronic unit into 4-20 mA or other standard signal for output. At present, a uniform calibration device is not available for calibration of the floating ball type liquid level sensor, the calibration method of a production workshop is to place the liquid level sensor to be detected in a water storage container with a certain liquid level and then read out a display value, however, the method has the following problems: the calibrated liquid level sensor has residual moisture on the surface, and can be packaged and stored after being dried, so that the production beat is influenced; along with the quantity increase of detection calibration product, the liquid level of water container can reduce gradually, can influence subsequent calibration precision.
SUMMERY OF THE UTILITY MODEL
In order to solve one of the technical problems existing in the prior art, the utility model adopts the following technical scheme:
a liquid level sensor calibration jig includes:
a base;
the fixing assembly is arranged on the base and used for detachably clamping the measuring catheter;
the moving piece is connected with a vertical linear driving source and can vertically reciprocate to drive the magnetic floating ball to move relative to the measuring guide pipe;
wherein, be formed with notch portion on the moving member, the width size of notch portion is greater than the external diameter of measuring pipe and is less than the external diameter of magnetism floater.
The embodiment of the utility model provides a pair of level sensor calibration tool, be fixed in the base through fixed subassembly with level sensor's measurement pipe on, be formed with slotted portion on the moving member, the moving member can be followed vertical removal up and passed the lower extreme of measuring the pipe, and the magnetic floater that drives level sensor removes along vertical relative measurement pipe, and then can detect the calibration to level sensor, whole calibration process need not to arrange level sensor in the aquatic and detect, the packing storage after the convenient detection, and can also ensure the uniformity that detects the calibration condition.
In some possible implementation manners, a mounting plate fixed along the vertical direction is arranged on the base, the moving member is arranged on one side of the mounting plate, and the fixing assembly is arranged at the upper end of the mounting plate.
In some possible implementation modes, the fixing assembly comprises a fixing clamping plate and two movable clamping blocks, the fixing clamping plate is bent from the upper end of the mounting plate and extends horizontally towards one side of the moving piece, a notch is formed in the fixing clamping plate, and the two moving pieces are respectively arranged on two sides of the notch and can move vertically relative to the fixing clamping plate.
In some possible implementations, the movable clamping block is provided with a threaded hole, and the movable clamping block is connected with the fixed clamping plate through a locking bolt.
In some possible implementations, the movable clamping block is disposed above the fixed clamping plate, and a handle portion is connected to the movable clamping block.
In some possible implementations, the movable clamping block is disposed below the fixed clamping plate, and a tension spring is disposed between the movable clamping block and the fixed clamping plate.
In some possible implementation manners, a guide rod along the vertical direction is arranged on the fixed clamping plate, and the movable clamping block is sleeved on the guide rod and can vertically slide up and down relative to the guide rod.
In some possible implementations, a reinforcing rib is further provided on the mounting plate on a side opposite to the moving member.
In some possible implementation manners, the mounting plate is further provided with a test port, and the test port is connected with an external test instrument.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic three-dimensional structure diagram of a liquid level sensor calibration jig provided by an embodiment of the present invention;
fig. 2 is a front view of the liquid level sensor calibration jig provided by the embodiment of the utility model.
Reference numerals are as follows:
a measuring catheter 1; a magnetic floating ball 2; a mounting member 3;
a base 10; a moving member 11; a drive source 12; a notch portion 13; a mounting plate 14; a reinforcing rib plate 15; a fixed clamp plate 16; moving the clamping block 17; a notch 18; the bolt 19 is locked.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a liquid level sensor calibration jig includes a base 10, and further includes a fixing assembly and a moving member 11 respectively disposed on the base 10, the fixing assembly is used for detachably clamping a measuring conduit 1 of the liquid level sensor, the moving member 11 is used for driving a magnetic floating ball 2 to move relative to the measuring conduit 1, so as to perform detection and calibration on the liquid level sensor, specifically, the moving member 11 is connected with a vertical linear driving source 12, the vertical linear driving source 12 can be a conventional servo linear motor or a linear sliding table, etc., a notch portion 13 is formed on the moving member 11, and a width dimension of the notch portion 13 is greater than an outer diameter dimension of the measuring conduit 1 and smaller than an outer diameter dimension of the magnetic floating ball 2; before detection and calibration, the vertical linear driving source 12 drives the moving part 11 to move downwards and give way to the liquid level sensor, the liquid level sensor is vertically clamped on the base 10 through the fixing assembly, the magnetic floating ball 2 is located at the lower end of the measuring conduit 1 at the moment, the vertical linear driving source 12 drives the moving part 11 to move upwards vertically and enables the notch part 13 to penetrate through the lower end of the measuring conduit 1, the upper end face of the moving part 11 is close to and abutted against the lower end of the magnetic floating ball 2, the magnetic floating ball 2 is driven to move along the vertical relative measuring conduit 1, and then the liquid level sensor can be detected and calibrated.
It should explain, during the detection calibration, level sensor need be connected with outside detecting instrument electricity, the utility model discloses a calibration tool is used for the fixed clamp to press from both sides measuring pipe 1 and orders about the relative measuring pipe 1 removal of magnetism floater 2 to vertical straight line driving source 12 orders about the amount of movement accurate control of moving member 11/magnetism floater 2, and detecting instrument is used for detecting the measuring pipe 1 and measures the amount of movement of magnetism floater 2 and whether matches of vertical straight line driving source 12 order about the amount of movement of magnetism floater 2, or according to matching degree adjustment deviation, and then realizes detecting and calibration function.
It should be noted that the moving member 11 of all the above embodiments is generally made of a non-magnetic material, and may be a hard plastic such as nylon.
In some possible implementations, a mounting plate 14 fixed in the vertical direction is disposed on the base 10, the mounting plate 14 may be fixed by bolting or welding, the moving member 11 is disposed on one side of the mounting plate 14, a reinforcing rib plate 15 may be disposed on the other side of the mounting plate 14 to reinforce the structural strength of the mounting plate 14 and the base 10, and the fixing component is disposed at the upper end of the mounting plate 14; specifically, fixed subassembly includes solid fixed splint 16 and two removal clamp splice 17, and solid fixed splint 16 bends and extends towards moving member 11 one side level from the upper end of mounting panel 14, is formed with breach 18 on this solid fixed splint 16, and two moving member 11 divide locate the both sides of breach 18 and can move up and down along vertical relatively solid fixed splint 16, press from both sides the installed part 3 on the tight survey vessel 1 through solid fixed splint 16 and removal clamp splice 1717, and then with survey vessel 1 along vertical being fixed in on base 10. It should be noted that the width dimension of the notch 18 is larger than the outer diameter dimension of the measuring catheter 1 and smaller than the outer diameter dimension of the mounting member 3.
In some possible implementations, referring to fig. 1 and 2, a threaded hole is provided on the movable clamp block 17, and the movable clamp block 17 and the fixed clamp plate 16 are connected by a locking bolt 19, that is, the gap between the movable clamp block 17 and the fixed clamp plate 16 can be adjusted by screwing the locking bolt 19, so as to ensure that the mounting member 3 can be placed or clamped between the movable clamp block 17 and the fixed clamp plate 16.
In some modes that can realize, remove clamp splice 17 and set up in the top of solid fixed splint 16 to remove clamp splice 17 and be connected with the handle portion, can be fixed in solid fixed splint 16 with installed part 3 crimping through the gravity of removing clamp splice 17 self this moment on, can not take place the contact with measuring catheter 1 when reciprocating because of magnetism floater 2, measuring catheter 1 can not receive exogenic action when detecting promptly, therefore with the lapped mode fixed can, make things convenient for dismouting level sensor more. When needing to be explained, in this embodiment, the hand can drive the two movable clamping blocks 17 to move up and down at the same time, that is, the two movable clamping blocks 17 can be integrally formed and can be lifted up or put down by the hand through the lifting handle.
In some possible implementations, the movable clamping block 17 is disposed below the fixed clamping plate 16, and a tension spring is disposed between the movable clamping block 17 and the fixed clamping plate 16, and the tension spring is normally tensioned and acts on the two movable clamping blocks 17 to force the two movable clamping blocks 17 to always press against the fixed clamping plate 16 to clamp and fix the measuring catheter 1.
In some possible implementation manners, a vertical guide rod is further arranged on the fixed clamping plate 16, the movable clamping block 17 is sleeved on the guide rod and can vertically slide up and down relative to the guide rod, and the purpose of the movable clamping block 17 is to improve the stability and smoothness of up and down movement.
In some possible implementation manners, the mounting plate 14 is further provided with a test port, the test port is connected with an external test instrument, and the test port is fixed on the fixed clamping plate 16 vertically upwards, so that the insertion and the extraction of hands are facilitated, and the production efficiency of detection and calibration is improved.
The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or replacements within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a liquid level sensor calibration tool which characterized in that includes:
a base (10);
a fixing assembly arranged on the base (10) for detachably clamping the measuring catheter (1);
the moving piece (11) is connected with a vertical linear driving source (12), and the moving piece (11) can vertically reciprocate to drive the magnetic floating ball (2) to move relative to the measuring guide pipe (1);
wherein, a notch part (13) is formed on the moving part (11), and the width dimension of the notch part (13) is larger than the outer diameter of the measuring conduit (1) and smaller than the outer diameter of the magnetic floating ball (2).
2. The liquid level sensor calibration jig according to claim 1, characterized in that a mounting plate (14) fixed in the vertical direction is arranged on the base (10), the moving member (11) is arranged on one side of the mounting plate (14), and the fixing component is arranged at the upper end of the mounting plate (14).
3. The liquid level sensor calibration jig according to claim 2, characterized in that the fixing assembly comprises a fixing clamping plate (16) and two movable clamping blocks (17), the fixing clamping plate (16) is bent from the upper end of the mounting plate (14) and horizontally extends towards one side of the movable member (11), a notch (18) is formed on the fixing clamping plate (16), and the two movable members (11) are respectively arranged at two sides of the notch (18) and can vertically move up and down relative to the fixing clamping plate (16).
4. The liquid level sensor calibration jig of claim 3, characterized in that, a threaded hole is arranged on the movable clamping block (17), and the movable clamping block (17) is connected with the fixed clamping plate (16) through a locking bolt (19).
5. The liquid level sensor calibration jig according to claim 3, characterized in that the movable clamp block (17) is arranged above the fixed clamp plate (16), and a handle is connected to the movable clamp block (17).
6. The liquid level sensor calibration jig according to claim 3, characterized in that the movable clamping block (17) is arranged below the fixed clamping plate (16), and a tension spring is arranged between the movable clamping block (17) and the fixed clamping plate (16).
7. The liquid level sensor calibration jig according to any one of claims 4 to 6, wherein a guide rod is arranged on the fixed clamping plate (16) along the vertical direction, and the movable clamping block (17) is sleeved on the guide rod and can vertically slide relative to the guide rod.
8. The liquid level sensor calibration jig according to claim 2, wherein a reinforcing rib (15) is further provided on the mounting plate (14) on a side opposite to the moving member (11).
9. The fixture according to any one of claims 2 to 6, wherein the mounting plate (14) is further provided with a test port, and the test port is connected to an external test instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222237446.9U CN218097965U (en) | 2022-08-24 | 2022-08-24 | Liquid level sensor calibration tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222237446.9U CN218097965U (en) | 2022-08-24 | 2022-08-24 | Liquid level sensor calibration tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218097965U true CN218097965U (en) | 2022-12-20 |
Family
ID=84446820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222237446.9U Active CN218097965U (en) | 2022-08-24 | 2022-08-24 | Liquid level sensor calibration tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218097965U (en) |
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2022
- 2022-08-24 CN CN202222237446.9U patent/CN218097965U/en active Active
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