CN215413964U

CN215413964U - Capacitance liquid level meter calibrating device

Info

Publication number: CN215413964U
Application number: CN202121828252.5U
Authority: CN
Inventors: 王伟宁
Original assignee: Harbin Jinbaihong Technology Development Co ltd
Current assignee: Harbin Jinbaihong Technology Development Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-04
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a calibrating device of a capacitance liquid level meter, which relates to the technical field of detection of the capacitance liquid level meter and aims to solve the problems that the medium liquid level of the existing calibrating device is inconvenient to control, the height of the liquid level meter can not be adjusted to adapt to liquid level meters with different specifications, and the calibrating work requirement of the liquid level meters with various specifications can not be met. And can be suitable for the calibration operation of liquid level meters with various specifications.

Description

Capacitance liquid level meter calibrating device

Technical Field

The utility model relates to the technical field of detection of capacitance liquid level meters, in particular to a calibration device of a capacitance liquid level meter.

Background

A capacitance level gauge is a measuring instrument for measuring the level of a medium in a container by using a change in capacitance, in which a container wall made of electrodes and a conductive material forms a capacitance, and when a measuring voltage of a fixed frequency is applied to the electrodes while the dielectric constant of the medium to be measured is constant for a given electrode, the current flowing through the capacitance depends on and is proportional to the height of the medium between the electrodes of the capacitance, so that the capacitance level gauge performs level measurement based on the change in capacitance.

The capacitance liquid level meter has simple structure, no any movable component, high reliability, very little maintenance, no need of conventional large, medium and small maintenance, high resolution, various signal outputs, convenient configuration of different systems, reliable work, fast dynamic response, non-contact measurement, perfect protection of overcurrent, overvoltage and power supply polarity, capability of working under severe conditions of high temperature, radiation, strong vibration and the like, suitability for level measurement of high-temperature and high-pressure containers, and certain application of the advantages of no influence of the temperature, specific gravity, container shape and pressure and the like of the measured liquid in various fields of industrial and agricultural production.

The electric capacity level gauge need calibrate the back and just can use to guarantee measuring accuracy and accuracy nature, electric capacity level gauge calibration need calibrate respectively in the medium of the different degree of depth, and current calibrating device medium liquid level control is inconvenient, can not adjust the level gauge highly in order to adapt to the level gauge of different specifications, can not satisfy multiple specification level gauge's calibration work needs.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a capacitor liquid level meter calibrating device which adopts the technical scheme that the device comprises a liquid level meter, a bottom frame, a support and a top frame, wherein a water pump and a liquid storage tank are arranged below the bottom frame, a liquid inlet pipe is arranged on the water pump, a liquid outlet pipe is arranged on the liquid storage tank, an electromagnetic valve is arranged on the liquid outlet pipe, a controller and an observation box are arranged on the bottom frame, the support is internally provided with a microprocessor, the observation box is made of transparent materials, the tail end outlet of the liquid inlet pipe is close to the inner bottom of the observation box, the bottom of the observation box is connected with the liquid outlet pipe, a positioning clamp, an upright post and a lower shaft sleeve are arranged on the support, a scale which is in sliding connection is arranged on the inner wall of the positioning clamp, the scale corresponds to the position of the observation box, a plurality of groups of upright posts are arranged, and the upright posts share the same inscribed circle, it is openly two sets of adjacent sliding connection has the sliding sleeve on the stand, be equipped with the trompil on the sliding sleeve, the trompil with the demonstration end size phase-match of level gauge, the stand with the tangent plane of inscribed circle is equipped with the screw thread, the multiunit be equipped with the lifter disc between the stand, the lifter disc side is equipped with screw thread I, lifter disc and multiunit the equal threaded connection of stand, be equipped with the tooth's socket on the screw thread I, the tooth's socket has the multiunit, be equipped with the bearing on the lifter disc, the bearing with the bottom size phase-match of level gauge, the bearing with the trompil position is corresponding, the axle sleeve internal rotation is connected with the gear roller down, the tooth on the gear roller with the tooth's socket meshes mutually, the stand top is equipped with the roof-rack, the roof-rack passes through the upper bearing and connects the gear roller, the gear roller top is equipped with the rocking handle, microprocessor with the water pump, The electromagnetic valves are electrically connected.

As a preferred technical scheme of the present invention, the three groups of the upright columns are located at three vertices of the same square, the circle center of the lower shaft sleeve is located at the remaining vertices of the square, and the upright columns and the lower shaft sleeve are tangent to the same circle to limit the lifting disc.

As a preferable technical scheme of the utility model, the connection part of the upright post and the lifting disc is an arc surface, the arc surface is matched with the lifting disc in size, and the thread is matched with the thread I.

As a preferable technical scheme of the utility model, the side wall of the positioning clamp is provided with a rotating handle, the rotating handle is in threaded connection with the positioning clamp, the tail end of the rotating handle is in sliding connection with the scale, and the scale can be tightened by using the rotating handle.

As a preferable technical scheme of the utility model, the rocking handle is provided with a handle which is rotatably connected, the handle is perpendicular to the rocking handle, the rocking handle is convenient to exert force when rotated, and the handle is provided with a protective sleeve, so that the operation comfort is improved.

As a preferred technical scheme of the utility model, the inner wall of the opening of the sliding sleeve is provided with a shock-absorbing pad for shock-absorbing protection of the liquid level meter.

The utility model has the beneficial effects that: the controller is used for controlling the water pump and the electromagnetic valve, the liquid level in the observation box can be accurately adjusted by matching with the scale, the liquid level condition required by the calibration of the liquid level meter is realized, the operation is convenient and accurate, the vertical height of the scale can be adjusted by the positioning clamp, the liquid level meter can adapt to various different calibration environments, the liquid level meter can be effectively prevented from overturning by fixing the liquid level meter by the sliding sleeve and the bearing, the stability of the liquid level meter in the calibration process is ensured, the gear roller is driven by the rocking handle, the lifting disc is driven to rotate, the lifting disc is further lifted by the threads on the upright post, the transverse motion is converted into the vertical motion, the lifting speed is controllable and stable, the height adjustment of the liquid level meter can be realized, and the liquid level meter calibration device is suitable for the calibration operation of liquid level meters with various specifications.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic top view of the top frame of the present invention;

FIG. 4 is a schematic top view of the lifter plate of the present invention;

FIG. 5 is a schematic front view of the lifting plate of the present invention;

FIG. 6 is a schematic cross-sectional view of the present invention at A;

FIG. 7 is a cross-sectional view of the positioning clip of the present invention.

In the figure: 1-bottom frame, 2-support, 3-top frame, 4-scale, 5-liquid level meter, 6-lifting plate, 10-controller, 11-water pump, 12-liquid inlet pipe, 13-electromagnetic valve, 14-liquid storage tank, 20-observation box, 21-positioning clamp, 211-rotating handle, 30-sliding sleeve, 301-lower shaft sleeve, 302-upper shaft sleeve, 31-upright column, 32-gear roller, 33-rocking handle and 60-bearing.

Detailed Description

Example 1

As shown in fig. 1 to 7, the utility model discloses a capacitance liquid level meter calibrating device, which adopts the technical scheme that the device comprises a liquid level meter 5, a bottom frame 1, a support 2 and a top frame 3, wherein a water pump 11 and a liquid storage tank 14 are arranged below the bottom frame 1, a liquid inlet pipe 12 is arranged on the water pump 11, a liquid outlet pipe is arranged on the liquid storage tank 14, an electromagnetic valve 13 is arranged on the liquid outlet pipe, a controller 10 and an observation box 20 are arranged on the bottom frame 1, the support 2 is internally provided with a microprocessor in the controller 10, the observation box 20 is made of transparent materials, the outlet at the tail end of the liquid inlet pipe 12 is close to the inner bottom of the observation box 20, the bottom of the observation box 20 is connected with the liquid outlet pipe, a positioning clamp 21, a vertical column 31 and a lower shaft sleeve 301 are arranged on the support 2, a scale 4 in sliding connection is arranged on the inner wall of the positioning clamp 21, the scale 4 corresponds to the observation box 20, the column 31 has multiple groups, multiple groups of columns 31 have the same inner tangent circle, two groups of columns 31 are adjacent to each other in front, a sliding sleeve 30 is connected to the columns 31 in a sliding manner, holes are formed in the sliding sleeve 30 and are matched with the display end size of the liquid level meter 5, threads are arranged on the columns 31 and the tangent surface of the inner tangent circle, a lifting disc 6 is arranged between the multiple groups of columns 31, threads I are arranged on the side surface of the lifting disc 6, the lifting disc 6 is connected with the multiple groups of columns 31 in a threaded manner, tooth grooves are formed in the threads I and are meshed with the tooth grooves, a bearing 60 is arranged on the lifting disc 6, the bearing 60 is matched with the bottom size of the liquid level meter 5, the bearing 60 corresponds to the hole position, a gear roller 32 is connected to the lower shaft sleeve 301 in a rotating manner, the teeth on the gear roller 32 are meshed with the tooth grooves, and a top frame 3 is arranged at the top end of the column 31, the top frame 3 is connected with the gear roller 32 through an upper shaft sleeve 302, the top end of the gear roller 32 is provided with a rocking handle 33, and the microprocessor is electrically connected with the water pump 11 and the electromagnetic valve 13.

As a preferred technical solution of the present invention, the three groups of the upright columns 31 are located at three vertices of the same square, the circle center of the lower shaft sleeve 301 is located at the remaining vertices of the square, and the upright columns 31 and the lower shaft sleeve 301 are tangent to the same circle, so as to limit the lifting disc 6, and ensure the stability of the lifting disc 6.

As a preferable technical scheme of the utility model, the connection part of the upright column 31 and the lifting disc 6 is an arc surface, the arc surface is matched with the lifting disc 6 in size, and the thread is matched with the thread I, so that the normal rotation of the lifting disc 6 is ensured, and the reliability is improved.

As a preferable technical scheme of the present invention, a rotating handle 211 is disposed on a side wall of the positioning clamp 21, the rotating handle 211 is in threaded connection with the positioning clamp 21, a terminal of the rotating handle 211 is in sliding connection with the scale 4, the scale 4 can be loosened and loosened by using the rotating handle 211, and the position of the scale 4 can be adjusted by simple operation.

As a preferable technical scheme of the utility model, the rocking handle 33 is provided with a handle which is rotatably connected, the handle is perpendicular to the rocking handle 33, the force is generated when the rocking handle 33 is rotated, and the handle is provided with a protective sleeve, so that the operation comfort is improved, and the hand abrasion of an operator is avoided.

As a preferred technical scheme of the utility model, the inner wall of the opening of the sliding sleeve 30 is provided with a shock absorption pad for shock absorption protection of the liquid level meter 5, so that the liquid level meter 5 is prevented from being damaged by shock, and the precision of the liquid level meter 5 is ensured.

The working principle of the utility model is as follows: a probe at the bottom of the liquid level meter 5 penetrates downwards from an opening in the middle of a bearing 60, a display end of the liquid level meter 5 is embedded into a sliding sleeve 30, then the sliding sleeve 30 is slid, the bottom of the liquid level meter 5 is placed on the bearing 60, a rocking handle 33 is shaken according to the length of the probe, a gear roller 32 is rotated under the limiting action of an upper shaft sleeve 302 and a lower shaft sleeve 301 through the limiting action of a top frame 3, so that a lifting disc 6 is driven to rotate, the lifting disc 6 is lifted or lowered by threads on an upright post 31, the height of the liquid level meter 5 on a support 2 is adjusted, a rotating handle 211 is rotated, a scale 4 is loosened, the scale 4 is vertically slid in a positioning clamp 21, the height of the scale 4 is adjusted, a water pump 11 is started through a controller 10 on an underframe 1, medium liquid is extracted from a liquid storage tank 14, the medium liquid is injected into an observation tank 20 from a liquid inlet pipe 12, the scale of the liquid level on the scale 4 is observed through a transparent side wall of the observation tank 20, when the liquid level reaches a target scale, close water pump 11, flow out in the observation box 20 through opening and stopping solenoid valve 13 messenger's medium liquid, fall into liquid reserve tank 14, finely tune the liquid level in the observation box 20, make it accurate to the target scale, then practical level gauge 5 measures to this adjustment liquid level height realizes the multiunit measurement calibration of level gauge 5.

The microprocessor adopts an Aitmeal 89C51 type singlechip which is used for starting and stopping the water pump and the electromagnetic valve, and 89C51 pins and connection modes, and technicians in the field can obtain technical inspiration by referring to teaching materials or technical manuals published by manufacturers; the circuit connections according to the utility model are conventional means used by the person skilled in the art and can be suggested by a limited number of tests, which are common knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A capacitive gauge calibration device, comprising a gauge (5), characterized in that: still include chassis (1), support (2), roof-rack (3), chassis (1) below is equipped with water pump (11), liquid reserve tank (14), be equipped with feed liquor pipe (12) on water pump (11), be equipped with the drain pipe on liquid reserve tank (14), be equipped with solenoid valve (13) on the drain pipe, be equipped with controller (10), observation box (20) on chassis (1), support (2), be equipped with microprocessor in controller (10), observation box (20) are transparent material, the terminal export of feed liquor pipe (12) is close to the interior bottom of observation box (20), observation box (20) bottom is connected the drain pipe, be equipped with locating clip (21), stand (31), lower axle sleeve (301) on support (2), locating clip (21) inner wall is equipped with sliding connection's scale (4), scale (4) with observation box (20) position is corresponding, the utility model discloses a novel lifting device, including stand (31), stand (31) have the multiunit, the multiunit stand (31) is total same inscribed circle, openly two sets of adjacent sliding connection has sliding sleeve (30) on stand (31), be equipped with the trompil on sliding sleeve (30), the trompil with the demonstration end size phase-match of level gauge (5), stand (31) with the tangent plane of inscribed circle is equipped with the screw thread, the multiunit be equipped with lifting disk (6) between stand (31), lifting disk (6) side is equipped with screw thread I, lifting disk (6) and multiunit the equal threaded connection of stand (31), be equipped with the tooth's socket on the screw thread I, the tooth's socket has the multiunit, be equipped with bearing (60) on lifting disk (6), bearing (60) with the bottom size phase-match of level gauge (5), bearing (60) with the trompil position is corresponding, axle sleeve (301) internal rotation is connected with gear roller (32) down, tooth on gear roller (32) with the tooth's socket meshes mutually, stand (31) top is equipped with roof-rack (3), roof-rack (3) are connected through last axle sleeve (302) gear roller (32), gear roller (32) top is equipped with rocking handle (33), microprocessor with water pump (11) solenoid valve (13) electrical property links to each other.

2. A capacitive gauge calibration device according to claim 1, characterized in that: three groups of upright posts (31) are arranged at three vertexes of the same square, and the circle center of the lower shaft sleeve (301) is arranged at the rest vertexes of the square.

3. A capacitive gauge calibration device according to claim 2, characterized in that: the connection part of the upright column (31) and the lifting disc (6) is an arc surface, and the arc surface is matched with the lifting disc (6) in size.

4. A capacitive gauge calibration device according to claim 1, characterized in that: the side wall of the positioning clamp (21) is provided with a rotating handle (211), the rotating handle (211) is in threaded connection with the positioning clamp (21), and the tail end of the rotating handle (211) is in sliding connection with the scale (4).

5. A capacitive gauge calibration device according to claim 1, characterized in that: the handle is arranged on the rocking handle (33) and is connected in a rotating mode, the handle is perpendicular to the rocking handle (33), and a protective sleeve is arranged on the handle.

6. A capacitive gauge calibration device according to claim 1, characterized in that: the inner wall of the opening of the sliding sleeve (30) is provided with a shock pad.