CN216246611U

CN216246611U - Liquid metering equipment

Info

Publication number: CN216246611U
Application number: CN202122853258.4U
Authority: CN
Inventors: 张震; 李毅; 徐海中; 戴宗贤
Original assignee: Chongqing Academy of Metrology and Quality Inspection
Current assignee: Chongqing Academy of Metrology and Quality Inspection
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-08
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses liquid metering equipment which comprises a mounting plate, wherein a liquid storage tank, a water pump and a containing tank are fixed on the upper side of the mounting plate, a water pumping pipe communicated with the inner cavity of the liquid storage tank is installed at a water inlet of the water pump, a water inlet pipe communicated with the inner cavity of the containing tank is installed at a water outlet of the water pump, a measuring pipe communicated with the inner cavity of the containing tank is installed at the lower part of the side surface of the liquid storage tank, and the measuring pipe is arranged in a transparent mode. This liquid metering equipment can be used for the measurement of more liquid, utilizes the balanced mode of atmospheric pressure to liquid measurement, can effectively reduce the error that liquid surface ripple produced to the measurement result, improves the accuracy of measurement, and the delivery port of pump body inlet tube is located the liquid surface all the time in this metering equipment simultaneously, firstly avoids the inlet tube to be located and leads to the liquid level to rise in the liquid, secondly prevents that liquid extraction in-process from squirting the splash around, guarantees the accuracy of this metering equipment measurement.

Description

Liquid metering equipment

Technical Field

The utility model relates to the technical field of metering equipment, in particular to liquid metering equipment.

Background

Common liquid metering equipment is mostly graduated flask or graduated flask, and graduated flask or graduated flask are used for the measurement of less liquid, and when the liquid volume that awaits measuring is great, graduated flask or graduated flask are not applicable, and the metering mode of more liquid usually does, takes out liquid to specific volume in by the pump body, measures the liquid volume through level gauge or other measuring device, but when the pump body extraction liquid, there is the ripple on the surface of liquid usually, leads to detection device's liquid level detection error to appear easily.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the existing defects, provide a liquid metering device which can be used for metering more liquid, and utilize an air pressure balance mode to meter the liquid, so that the error of the ripple of the liquid surface on the metering result can be effectively reduced, and the metering accuracy is improved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a liquid metering equipment, includes the mounting panel, the mounting panel upside is fixed with liquid storage pot, water pump and holds the jar, the drinking-water pipe with liquid storage pot inner chamber intercommunication is installed to the water inlet of water pump, the inlet tube with holding jar inner chamber intercommunication is installed in the outlet of water pump.

The survey buret of surveying liquid storage pot side lower part installation rather than the inner chamber intercommunication, survey the buret and be transparent setting, and survey the buret side and be provided with the scale mark, hold a jar downside and install the drain pipe rather than the inner chamber intercommunication, install the valve on the drain pipe, the input of water pump is connected with external switch's output electricity.

As a preferable technical solution of the present invention, a buoyancy plate is slidably disposed in the holding tank up and down, one end of the water inlet pipe located in the holding tank penetrates through and extends to a lower side of the buoyancy plate, and a portion of the water inlet pipe located between the buoyancy plate and the holding tank is flexibly disposed.

As a preferable technical scheme of the utility model, a guide rod is arranged in a sliding hole on the upper side of the containing tank in a sliding mode, and the lower end of the guide rod is fixedly connected with the middle of the upper side of the buoyancy plate.

According to a preferred technical scheme of the utility model, the measuring pipe is internally provided with a floating ball in a sliding manner up and down, and one end of the measuring pipe far away from the containing tank is arranged downwards.

As a preferred technical scheme of the utility model, the upper side of the containing tank is fixedly provided with an air duct communicated with the inner cavity of the containing tank, and one end of the air duct far away from the containing tank is provided with a filtering piece fixed on the upper side of the containing tank.

As a preferable technical scheme of the utility model, a first support is fixed on the upper side of the mounting plate, the liquid storage tank is fixed in the first support, a second support is also fixed on the upper side of the mounting plate, and the containing tank is fixed in the second support.

Compared with the prior art, the utility model has the beneficial effects that:

1. the liquid metering device disclosed by the utility model can be used for metering more liquid, the liquid is metered in an air pressure balance mode, the error of the liquid surface ripple on the metering result can be effectively reduced, and the metering accuracy is improved.

2. According to the liquid metering device disclosed by the utility model, the water pump extracts liquid in the liquid storage tank through the water pumping pipe, the extracted liquid is discharged into the containing tank through the water inlet pipe, the buoyancy plate floats on the liquid surface under the buoyancy of the liquid after the liquid enters the containing tank, and the buoyancy plate drives the water inlet pipe to move so that the water outlet of the water inlet pipe is always positioned on the liquid surface, so that the metering error caused by the fact that the liquid is splashed on the inner wall of the containing tank is avoided.

3. According to the liquid metering device disclosed by the utility model, the buoyancy plate ensures that the water inlet pipe is always positioned on the liquid surface, so that the metering error caused by the fact that the water inlet pipe sinks into the liquid and the liquid level rises is avoided, the buoyancy plate ensures the stability of the liquid level in the accommodating tank, the ripples generated by the liquid level are reduced, and the metering accuracy of the metering device is ensured.

4. According to the liquid metering device disclosed by the utility model, after liquid enters the containing tank, the liquid flows into the measuring pipe under the balance of air pressure, the liquid level height of the liquid in the measuring pipe changes along with the change of the liquid level height in the containing tank, and the liquid level in the measuring pipe is not influenced by the ripple of the liquid level in the containing tank, so that the metering device is convenient to use.

Drawings

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

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic sectional view of a holding tank according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

In the figure: the filter comprises a mounting plate 1, a liquid storage tank 2, a first support 21, a water pump 3, a water pumping pipe 31, a water inlet pipe 32, a holding tank 4, a second support 41, a measuring pipe 5, a floating ball 6, a buoyancy plate 7, a guide rod 8, a water outlet pipe 9, a valve 10, an air guide pipe 11 and a filter piece 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a liquid metering equipment, including

mounting panel

1, 1 upside of mounting panel is fixed with liquid storage pot 2, water pump 3 and holding tank 4, liquid storage pot 2 is used for treating the storage of measurement liquid, holding tank 4 is used for the liquid measurement, and the liquid flow in the liquid storage pot 2 of being convenient for of water pump 3 is to holding tank 4 in, the drinking-water pipe 31 with 2 inner chambers of liquid storage pot intercommunication is installed to water pump 3's water inlet, water pump 3's outlet install with the inlet tube 32 that holds 4 inner chambers of tank intercommunication, water pump 3 extracts through the liquid of drinking-water pipe 31 in to liquid storage pot 2, and discharge the liquid of extraction to holding tank 4 in through inlet tube 32.

2 side lower parts of liquid storage pot are installed and are surveyed buret 5 rather than the inner chamber intercommunication, survey buret 5 and be transparent setting, survey buret 5 material including but not spacing be glass material or plastics material, and survey buret 5 side and be provided with the scale mark, the scale mark is convenient for survey the liquid level height of surveying buret 5 interior liquid, hold jar 4 downside and install drain pipe 9 rather than the inner chamber intercommunication, install valve 10 on the drain pipe 9, will hold the liquid discharge in jar 4 through rotating valve 10, the input of water pump 3 is connected with external switch's output electricity.

The holding tank 4 is internally provided with a buoyancy plate 7 in a sliding manner, the buoyancy plate 7 is preferably a foam plate, the water inlet pipe 32 is positioned at one end of the holding tank 4 and penetrates through and extends to the lower side of the buoyancy plate 7, the part of the water inlet pipe 32, which is positioned between the buoyancy plate 7 and the holding tank 4, is flexibly arranged, and the part of the water inlet pipe 32, which is positioned between the buoyancy plate 7 and the holding tank 4, is a corrugated pipe or a hose.

Liquid gets into and holds jar 4 interior back, buoyancy board 7 receives the buoyancy of liquid and floats at the liquid surface, buoyancy board 7 drives inlet tube 32 and removes the outlet that makes inlet tube 32 and is located the liquid surface all the time, avoid liquid to jet and lead to the measurement error to appear on holding jar 4 inner wall, buoyancy board 7 guarantees that inlet tube 32 is located the liquid surface all the time simultaneously, avoid inlet tube 32 to sink into and make the liquid level rise in the liquid and lead to the measurement error to appear, and buoyancy board 7 guarantees the stability of holding jar 4 interior liquid level, reduce the ripple that the liquid level produced, guarantee the accuracy of this metering device measurement.

Liquid gets into and holds jar 4 interior back, receives the atmospheric pressure balance to flow to surveying in the buret 5, surveys the liquid level height in the buret 5 and follows and hold jar 4 interior liquid level height change and change, and survey the intraductal liquid level of buret 5 and do not receive the ripple influence of liquid level in holding jar 4, the use of this metering device of being convenient for.

A guide rod 8 is arranged in the sliding hole in the upper side of the containing tank 4 in a sliding mode, the guide rod 8 is preferably a telescopic rod, the lower end of the guide rod 8 is fixedly connected with the middle of the upper side of the buoyancy plate 7, and the guide rod 8 guides and limits the up-and-down movement of the buoyancy plate 7.

Slide from top to bottom in surveying buret 5 and be provided with floater 6, survey the floater 6 of surveying in buret 5 and float on the liquid surface, guarantee the stability of liquid level, survey buret 5 and keep away from the one end that holds jar 4 and set up down, avoid outside dust to fall into in surveying buret 5.

Hold 4 upsides of jar and be fixed with the air duct 11 rather than the inner chamber intercommunication, air duct 11 is used for holding jar 4 internal gas's flow, be convenient for buoyancy board 7 reciprocates in holding jar 4, and air duct 11 keeps away from the one end that holds jar 4 and installs the filtration piece 12 of fixing at holding jar 4 upsides, it comprises rose box and filter screen to filter piece 12, air duct 11 and rose box inner chamber intercommunication, it is preferred, be provided with the filter pulp in the rose box, when outside air gets into and holds jar 4, filter piece 12 filters the dust in the gas.

The upside of the mounting plate 1 is fixed with a first support 21, the liquid storage tank 2 is fixed in the first support 21, the first support 21 is convenient for the installation and the use of the liquid storage tank 2, the upside of the mounting plate 1 is also fixed with a second support 41, the holding tank 4 is fixed in the second support 41, and the second support 41 is convenient for the installation and the use of the holding tank 4.

The water pump 3 used in the present invention is a common electronic component in the prior art, and the working method and the circuit structure thereof are well known technologies and are not described herein.

When in use:

the water pump 3 is started through an external switch, the water pump 3 pumps the liquid in the liquid storage tank 2 through the water pumping pipe 31, and the pumped liquid is discharged into the accommodating tank 4 through the water inlet pipe 32;

after the liquid enters the accommodating tank 4, the buoyancy plate 7 floats on the liquid surface under the buoyancy of the liquid, the buoyancy plate 7 drives the water inlet pipe 32 to move so that the water outlet of the water inlet pipe 32 is always positioned on the liquid surface, the metering error caused by the fact that the liquid is splashed on the inner wall of the accommodating tank 4 is avoided, meanwhile, the buoyancy plate 7 ensures that the water inlet pipe 32 is always positioned on the liquid surface, and the metering error caused by the fact that the water inlet pipe 32 sinks into the liquid and the liquid surface rises is avoided;

liquid gets into and holds jar 4 interior back, receive the atmospheric pressure balance to flow to surveying in the buret 5, survey the liquid level height in the buret 5 and follow and hold jar 4 interior liquid level altitude variation and change, and survey the intraductal liquid level of buret 5 and do not receive the ripple influence of liquid level in holding jar 4, be convenient for this metering device's use, simultaneously survey the floater 6 of buret 5 interior and float at the liquid surface, guarantee the stability of liquid level, and buoyancy plate 7 guarantees to hold the stability of jar 4 interior liquid level, reduce the ripple that the liquid level produced, guarantee the accuracy of this metering device measurement.

This liquid metering equipment can be used for the measurement of more liquid, utilizes the balanced mode of atmospheric pressure to liquid measurement, can effectively reduce the error that liquid surface ripple produced to the measurement result, improves the accuracy of measurement, and the delivery port of pump body inlet tube is located the liquid surface all the time in this metering equipment simultaneously, firstly avoids the inlet tube to be located and leads to the liquid level to rise in the liquid, secondly prevents that liquid extraction in-process from squirting the splash around, guarantees the accuracy of this metering equipment measurement.

The parts which are not disclosed in the utility model are all the prior art, and the specific structure, the materials and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A liquid metering device comprising a mounting plate (1), characterized in that: a liquid storage tank (2), a water pump (3) and a containing tank (4) are fixed on the upper side of the mounting plate (1), a water pumping pipe (31) communicated with the inner cavity of the liquid storage tank (2) is installed at a water inlet of the water pump (3), and a water inlet pipe (32) communicated with the inner cavity of the containing tank (4) is installed at a water outlet of the water pump (3);

survey buret (5) rather than the inner chamber intercommunication is installed to liquid storage pot (2) side lower part, survey buret (5) and be transparent setting, and survey buret (5) side and be provided with the scale mark, hold jar (4) downside and install drain pipe (9) rather than the inner chamber intercommunication, install valve (10) on drain pipe (9), the input of water pump (3) is connected with the output electricity of external switch.

2. The liquid metering device of claim 1, wherein: the utility model discloses a floating plate, including holding jar (4), inlet tube (32), the one end that holds jar (4) is located to slide from top to bottom and is provided with buoyancy board (7), inlet tube (32) are located and run through and extend to buoyancy board (7) downside, inlet tube (32) are located buoyancy board (7) and hold the part between jar (4) and are the flexible setting.

3. The liquid metering apparatus of claim 2, wherein: the sliding hole on the upper side of the containing tank (4) is internally provided with a guide rod (8) in a sliding mode, and the lower end of the guide rod (8) is fixedly connected with the middle of the upper side of the buoyancy plate (7).

4. The liquid metering device of claim 1, wherein: survey intraductal the upper and lower slip of buret (5) and be provided with floater (6), survey one end that buret (5) kept away from and hold jar (4) and set up down.

5. The liquid metering device of claim 1, wherein: hold jar (4) upside and be fixed with air duct (11) rather than the inner chamber intercommunication, and air duct (11) are kept away from the one end that holds jar (4) and are installed and fix filtration piece (12) at holding jar (4) upside.

6. The liquid metering device of claim 1, wherein: mounting panel (1) upside is fixed with first support (21), liquid storage pot (2) are fixed in first support (21), mounting panel (1) upside still is fixed with second support (41), it fixes in second support (41) to hold jar (4).