CN212275132U - Buoyancy measuring device - Google Patents
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- CN212275132U CN212275132U CN202020946976.9U CN202020946976U CN212275132U CN 212275132 U CN212275132 U CN 212275132U CN 202020946976 U CN202020946976 U CN 202020946976U CN 212275132 U CN212275132 U CN 212275132U
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Abstract
The application provides a buoyancy measuring device, this buoyancy measuring device includes: a measuring container for accommodating a measuring medium; the first measuring mechanism is used for measuring the total weight of the measuring container and the measuring medium in the measuring container; a medium supply mechanism for supplying a measuring medium to the measuring container; and the control mechanism is respectively in communication connection with the first measuring mechanism and the medium supply mechanism so as to control the medium supply mechanism to stop conveying the measuring medium to the measuring container when the weight measured by the first measuring mechanism reaches a preset value. By utilizing the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container, under the condition of continuous use of the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container after measurement at every time, the time and labor of the process of supplementing the measuring medium are saved, the interference of human factors is not easily caused, and the buoyancy measuring efficiency and the buoyancy measuring precision are favorably improved.
Description
Technical Field
The utility model relates to a measure the field, especially relate to a buoyancy measuring device.
Background
Buoyancy is the force that an object immersed in a fluid is forced vertically upwards by the fluid, and the magnitude of buoyancy depends on the volume of the object immersed in the fluid and the density of the fluid. The buoyancy force of the solid object in the liquid is measured to calculate the volume of the solid, so that the buoyancy force measuring device is widely applied to measurement of the total volume of the rock sample in oil-gas geological research work.
The existing buoyancy measuring device needs to obtain a first weight of a sample in air and a second weight of the sample in a measuring medium, and the difference value of the first weight and the second weight is the buoyancy force to which the sample is subjected in the measuring medium. Buoyancy may also be calculated by the archimedes principle, i.e. the sample immersed in the liquid is subjected to an upward buoyancy equal to the gravitational force to which the liquid displaced by the sample is subjected.
Alternatively, the buoyancy measuring device may comprise a measuring vessel, the upper part of which is provided with an overflow. Before measurement, the liquid level of the measuring medium is positioned at the overflow port. During measurement, the measuring medium is discharged from the overflow port, and the discharged measuring medium is collected and the weight of the measuring medium is measured, so that the buoyancy force applied to the sample can be calculated.
The buoyancy measuring device can keep the height of the level of the measuring medium constant before and during the measurement by applying the overflow port, thereby accurately measuring the weight of the discharged measuring medium. Similarly, patent document 1(CN2018111599058) discloses a constant liquid level control method in a continuous casting process of a continuous casting tundish, which avoids the technical problems of slag entrapment and unstable metallurgical effect by keeping the liquid level of the tundish constant, thereby improving the quality of molten steel; patent document 2(CN201821127141X) discloses a constant liquid level control device for a pure water tank, which effectively controls the liquid level in the pure water tank to be kept constant by using an overflow pipe.
The existing buoyancy measuring device cannot automatically supplement a measuring medium for a measuring container, under the condition of continuous use, the measuring medium needs to be supplemented manually after each measurement, time and labor are wasted, and the interference of human factors is easily caused.
SUMMERY OF THE UTILITY MODEL
To the problem among the above-mentioned prior art, this application has provided a buoyancy measuring device, and it can be automatically for measuring the container and supply measuring medium, under the condition that buoyancy measuring device used in succession, can measure the back at every turn and supply measuring medium for measuring the container automatically, and the process labour saving and time saving that supplies measuring medium just is difficult for receiving the interference of human factor, is favorable to improving buoyancy measurement efficiency and buoyancy measurement accuracy.
The utility model provides a buoyancy measuring device, this buoyancy measuring device includes: a measuring container for accommodating a measuring medium; the first measuring mechanism is used for measuring the total weight of the measuring container and the measuring medium in the measuring container; a medium supply mechanism for supplying a measuring medium to the measuring container; and the control mechanism is respectively connected with the first measuring mechanism and the medium supply mechanism in a communication way so as to control the medium supply mechanism to stop conveying the measuring medium to the measuring container when the weight measured by the first measuring mechanism reaches a preset value. By utilizing the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container, under the condition of continuous use of the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container after measurement at every time, the time and labor of the process of supplementing the measuring medium are saved, the interference of human factors is not easily caused, and the buoyancy measuring efficiency and the buoyancy measuring precision are favorably improved.
In one embodiment, the medium supply mechanism comprises a liquid pump, a first end of the liquid pump is connected with the liquid storage container, and a second end of the liquid pump is connected with the inlet of the liquid taking pipe; the outlet of the liquid taking pipe is positioned above the measuring container, or the outlet of the liquid taking pipe extends into the measuring container. Through this embodiment, can go into measuring container with measuring medium automatic pump through using the drawing liquid pump, labour saving and time saving, easy and simple to handle is favorable to improving buoyancy measurement efficiency.
In one embodiment, the first measuring mechanism is a first scale, which is located below the measuring container. Through this embodiment, be favorable to the size of buoyancy measuring device accurately measuring buoyancy.
In one embodiment, the buoyancy measuring device further comprises a collection vessel located below an outlet of the overflow structure of the measuring vessel; and the second measuring mechanism is used for measuring the total weight of the collecting container and the measuring medium in the collecting container and the weight of the collecting container, and acquiring the weight of the measuring medium overflowing from the measuring container into the collecting container. Through this embodiment, be favorable to realizing buoyancy measuring device's buoyancy measurement function.
In one embodiment, the second measuring mechanism is a second scale that is located below the collection container. Through this embodiment, be favorable to the size of buoyancy measuring device accurately measuring buoyancy.
In one embodiment, the buoyancy measuring device further comprises a sample frame assembly comprising: a frame for carrying a sample; and a sling for suspending the frame. Through this embodiment, the application of sample frame subassembly is favorable to controlling the descending speed of sample, and uses sample frame subassembly to bear the weight of the sample, also is favorable to the application of automatic control system, is favorable to improving the automatic level of buoyancy measurement.
In one embodiment, the buoyancy measuring device further comprises a third measuring mechanism removably coupled to the sample frame assembly for measuring the weight of the sample frame assembly in air and the measurement medium, and the total weight of the sample frame assembly and the sample in air and the measurement medium. Through this embodiment, be favorable to realizing buoyancy measuring device's buoyancy measurement function.
In one embodiment, the third measuring mechanism is a tension meter located above the measuring vessel. Through this embodiment, be favorable to realizing buoyancy measuring device's buoyancy measurement function.
In one embodiment, the buoyancy measuring device further comprises a lifting mechanism for driving the sample frame assembly to move in a vertical direction. Through this embodiment, elevating system can drive unloaded sample frame subassembly or carry the sample frame subassembly of sample and upwards or move down, and can inject the moving direction in vertical direction, compares in manual lift, labour saving and time saving, easy and simple to handle and be difficult for receiving the interference of human factor, is favorable to improving buoyancy measurement efficiency and buoyancy measurement accuracy.
In one embodiment, the lifting mechanism is in communication with the control mechanism, and the control mechanism controls the immersion depth of the sample frame assembly in the measurement medium through the lifting mechanism. Through this embodiment, be favorable to guaranteeing that the immersion depth of sample frame subassembly in the measuring medium keeps unanimous when measuring at every turn, be favorable to improving the precision of buoyancy measurement, and be favorable to improving buoyancy measuring device's degree of automation.
The application provides a buoyancy measuring device compares in prior art, has following beneficial effect:
1. by utilizing the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container, under the condition of continuous use of the buoyancy measuring device, the measuring medium can be automatically supplemented for the measuring container after measurement at every time, the time and labor of the process of supplementing the measuring medium are saved, the interference of human factors is not easily caused, and the buoyancy measuring efficiency and the buoyancy measuring precision are favorably improved.
2. The operation is simple and convenient, and the automation degree is high.
The above-mentioned technical characteristics can be combined in various suitable ways or replaced by equivalent technical characteristics as long as the purpose of the invention can be achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings, in which:
fig. 1 shows a schematic structural diagram of a buoyancy measuring device according to an embodiment of the present invention.
List of reference numerals:
1-a lifting mechanism; 2-a third measuring mechanism; 3-a first measuring mechanism; 4-a second measuring mechanism; 5-a frame; 6-a sling; 7-sample; 8-liquid storage container; 9-a measuring vessel; 10-a collection vessel; 11-a liquid pump; 12-a control mechanism; 15-liquid taking pipe; 16-overflow configuration.
In the drawings, like parts are provided with like reference numerals. The drawings are not to scale.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides a buoyancy measuring device including: a measuring container 9 for containing a measuring medium; a first measuring mechanism 3 for measuring the total weight of the measuring container 9 and the measuring medium therein; a medium supply mechanism for supplying a measuring medium to the measuring container 9; and a control structure 12 which is respectively connected with the first measuring mechanism 3 and the medium supply mechanism in a communication way so as to control the medium supply mechanism to stop conveying the measuring medium to the measuring container 9 when the weight measured by the first measuring mechanism 3 reaches a preset value.
In the process of measuring buoyancy using the buoyancy measuring device, it is necessary to immerse the sample 7 in a measuring medium, the measuring vessel 9 being a carrier of the measuring medium. The buoyancy measuring device in this embodiment can apply two mechanisms to obtain the buoyancy.
In the first measurement mechanism, when the sample 7 is immersed in the measurement medium, the measurement container 9 is drained, and the drained measurement medium is collected and its weight is measured, so that the buoyancy to which the sample 7 is subjected can be calculated. Under the condition of using the sample frame assembly, the buoyancy force borne by the unloaded sample frame assembly and the buoyancy force borne by the sample frame assembly loaded with the sample 7 can be respectively obtained, and then the difference value of the two buoyancy forces is calculated, namely the buoyancy force borne by the sample 7. In order to accurately measure the buoyancy, it is necessary to position the level of the measurement medium at the overflow of the measurement container 9 before the empty sample frame assembly or the sample frame assembly carrying the sample 7 is immersed in the measurement medium.
When the second measurement mechanism is applied, a first weight of the sample 7 in the air and a second weight in the measurement medium need to be obtained, and a difference value between the first weight and the second weight is a buoyancy force to which the sample 7 is subjected in the measurement medium. Under the condition of using the sample frame assembly, the buoyancy force borne by the unloaded sample frame assembly and the buoyancy force borne by the sample frame assembly loaded with the sample 7 can be respectively obtained, and then the difference value of the two buoyancy forces is calculated, namely the buoyancy force borne by the sample 7. In order to accurately measure buoyancy, the depth of immersion of the empty sample frame assembly and the sample frame assembly carrying the sample 7 in the measurement medium should be kept consistent. In order to ensure that the immersion depth is consistent, the vertical height of the sample frame assembly can be consistent in each measurement and the vertical height of the liquid level is not changed in the measurement process. A measuring vessel 9 with an overflow can be used for a constant vertical height of the liquid level during the measurement, and the liquid level of the measuring medium needs to be at the overflow of the measuring vessel 9 before both the empty sample frame assembly and the sample frame assembly carrying the sample 7 are immersed in the measuring medium.
In summary, both measuring mechanisms can improve the accuracy of the buoyancy measurement by locating the level of the measuring medium at the overflow of the measuring vessel 9 before the empty sample frame assembly or the sample frame assembly carrying the sample 7 is immersed in the measuring medium. Since the position of the overflow opening of the measuring container 9 is constant, the total weight of the measuring container 9 and the measuring medium therein is constant when the liquid level of the measuring medium is at the overflow opening of the measuring container 9 on the premise that the same measuring medium is used.
Therefore, it is possible to obtain the total weight of the measuring container 9 and the measuring medium therein when the liquid level of the measuring medium is at the overflow of the measuring container 9, and to take the total weight as a preset value. Before each buoyancy measurement, the buoyancy measurement device uses the first measurement mechanism 3 to obtain the total weight of the measurement container 9 and the measurement medium therein, and when the total weight reaches a preset value, a determination that the liquid level of the measurement medium is located at the overflow port of the measurement container 9 can be made.
In order to achieve an automatic replenishment of the measuring container 9 with measuring medium, the buoyancy measuring device in this embodiment may comprise a control structure 12, the control structure 12 being in communication connection with the first measuring means 3 and the medium supply means, respectively. Alternatively, the control structure 12 may store a preset value, so as to control the medium supply mechanism to stop feeding the measuring medium to the measuring container 9 when the weight taken by the first measuring mechanism 3 reaches the preset value, thereby ensuring that the liquid level of the measuring medium is at the overflow of the measuring container 9 at the beginning of each buoyancy measurement. The liquid supplementing method in the embodiment does not need to manually judge whether the liquid level is positioned at the overflow port of the measuring container 9, can eliminate the interference of human factors, and is favorable for improving the buoyancy measuring efficiency and the buoyancy measuring precision.
Optionally, the control structure 12 may also control the rate at which the medium supply mechanism delivers the measurement medium to the measurement container 9, so as to facilitate avoiding the liquid level from shaking during the liquid replenishment process, and the liquid level shaking is not beneficial to improving the buoyancy measurement efficiency and the buoyancy measurement precision.
The buoyancy measuring device of the embodiment can automatically supplement the measuring medium for the measuring container 9, can automatically supplement the measuring medium for the measuring container 9 after measurement every time under the condition that the buoyancy measuring device is continuously used, saves time and labor in the process of supplementing the measuring medium, is not easily interfered by human factors, and is favorable for improving the buoyancy measuring efficiency and the buoyancy measuring precision.
As shown in fig. 1, the medium supply mechanism of the present embodiment optionally includes a liquid-drawing pump 11, a first end of the liquid-drawing pump 11 is connected to the liquid storage tank 8, and a second end of the liquid-drawing pump 11 is connected to an inlet of the liquid-taking tube 15; the outlet of the liquid withdrawal tube 15 is located above the measuring container 9, or the outlet of the liquid withdrawal tube 15 extends into the measuring container 9.
First end and the stock solution container 8 of drawing liquid pump 11 are connected, and the second end of drawing liquid pump 11 is connected with the entry of liquid taking pipe 15 to drawing liquid pump 11 can be with the measuring medium pump income measuring vessel 9 in the stock solution container 8, labour saving and time saving, easy and simple to handle is favorable to improving buoyancy measurement efficiency.
Alternatively, the pump 11 may be communicatively connected to the control structure 12, so that the control structure 12 can control and adjust the power of the pump 11 and control the start and stop of the pump 11, and thus control whether to continue to replenish the fluid and the amount of fluid replenished per unit time.
Alternatively, the first end of the infusion pump 11 may be connected to another source of media, such as a liquid supply line.
The outlet of the liquid taking pipe 15 is positioned above the measuring container 9, so that the damage caused by corrosion, soaking and the like of the measuring medium to the liquid taking pipe 15 can be avoided, and the service life of the liquid taking pipe 15 is prolonged. The outlet of the liquid taking pipe 15 extends into the measuring container 9, so that the liquid level can be further prevented from shaking, and the buoyancy measuring efficiency and the buoyancy measuring precision can be improved.
This embodiment can be with measuring medium automatic pump go into measuring container 9 through using drawing liquid pump 11, labour saving and time saving, easy and simple to handle is favorable to improving buoyancy measurement efficiency.
As shown in fig. 1, the first measuring mechanism 3 of the present embodiment is optionally a first scale, which is located below the measuring container 9.
A first scale is located below the measuring container 9, which first scale is capable of converting the pressure to which it is subjected into the total weight of the measuring container 9 and the measuring medium therein. Due to the mature technology of using pressure to measure weight and high precision (for example, the precision of a balance used in a laboratory can reach one millionth), the buoyancy measuring device is favorable for accurately measuring the buoyancy.
As shown in fig. 1, the buoyancy measuring device of the present embodiment optionally further includes a collection vessel 10 located below the outlet of the overflow structure 16 of the measuring vessel 9; and a second measuring mechanism 4 for measuring the total weight of the collecting container 10 and the measuring medium in the collecting container 10 or the weight of the collecting container 10, and acquiring the weight of the measuring medium overflowing from the measuring container 9 into the collecting container 10.
Alternatively, the overflow structure 16 may comprise an overflow opening provided in a side wall of the measuring vessel 9, and an overflow pipe extending outwardly from the overflow opening, the collecting vessel 10 being located below an outlet of the overflow structure 16 of the measuring vessel 9 for collecting the measuring medium overflowing from the measuring vessel 9.
The second measuring means 4 is capable of measuring the total weight of the collecting container 10 and the measuring medium in the collecting container 10 and the weight of the collecting container 10, and thereby obtaining the weight of the measuring medium overflowing from the measuring container 9 into the collecting container 10, in order to obtain the buoyancy to which the sample 7 is subjected, using the first measuring mechanism described above.
The present embodiment is advantageous in realizing the buoyancy measuring function of the buoyancy measuring device by using the collection container 10 and the second measuring mechanism 4.
As shown in fig. 1, the second measuring mechanism 4 of the present embodiment is optionally a second scale, which is located below the collection container 10.
A second weighing device is located below the collecting container 10, which second weighing device is capable of converting the pressure to which it is subjected into the total weight of the collecting container 10 with the measuring medium therein and the weight of the empty collecting container 10, and thus the weight of the measuring medium overflowing from the measuring container 9 into the collecting container 10. Due to the mature technology of using pressure to measure weight and high precision (for example, the precision of a balance used in a laboratory can reach one millionth), the buoyancy measuring device is favorable for accurately measuring the buoyancy.
As shown in fig. 1, optionally, the buoyancy measuring device of the present embodiment further includes a sample frame assembly, and the sample frame assembly includes: a frame 5 for carrying a sample; and a sling 6 for hanging the frame 5.
By applying the sample frame assembly, it is advantageous to control the descent speed of the sample 7. The use of a sample frame assembly to carry the sample 7 also facilitates the use of an automated control system.
As shown in fig. 1, the buoyancy measuring device of the present embodiment optionally further includes a third measuring mechanism 2 detachably connected to the sample frame assembly for measuring the weight of the sample frame assembly in the air and the measuring medium, and the total weight of the sample frame assembly and the sample 7 in the air and the measuring medium.
The third measuring means 2 is capable of measuring the weight of the sample frame assembly in air and the measuring medium, and the total weight of the sample frame assembly and the sample 7 in air and the measuring medium, in order to obtain the buoyancy to which the sample is subjected using the second measuring mechanism described above.
The third measuring means 2 is detachably connected to the sample frame assembly, facilitating maintenance of the sample frame assembly and also securing the sample 7 in the frame 5 of the sample frame assembly before the measurement is started.
This embodiment is advantageous to realize the buoyancy measuring function of the buoyancy measuring device by using the third measuring mechanism 2.
As shown in fig. 1, the third measuring mechanism 2 of the present embodiment is optionally a tension meter, which is located above the measuring container 9.
The tension meter is capable of measuring the weight of the sample frame assembly in air and the measurement medium, and the total weight of the sample frame assembly and the sample 7 in air and the measurement medium, so as to obtain the buoyancy to which the sample is subjected using the second measurement mechanism described above.
The tension meter is detachably connected with the sling 6 of the sample frame assembly, and the buoyancy measuring function of the buoyancy measuring device is favorably realized.
As shown in fig. 1, optionally, the buoyancy measuring device of the present embodiment further includes a lifting mechanism 1 for driving the sample frame assembly to move in the vertical direction.
Elevating system 1 can drive unloaded sample frame subassembly or carry the sample frame subassembly of sample 7 and upwards or move down, and can inject the moving direction in vertical direction, compares in manual lift, labour saving and time saving, easy and simple to handle and be difficult for receiving human factor's interference, is favorable to improving buoyancy measurement efficiency and buoyancy measurement accuracy.
As shown in fig. 1, optionally, the lifting mechanism 1 of the present embodiment is in communication with a control structure 12, and the control structure 12 controls the immersion depth of the sample frame assembly in the measurement medium through the lifting mechanism 1.
When the sample frame assembly is submerged in the measurement medium, both the sample 7 and the frame 5 are completely submerged, but the slings 6 are only partially submerged in the measurement medium to avoid contact of the third measurement means 2 with the measurement medium. During measurement, the different immersion depths of the sample frame assembly in the measurement medium affect the different lengths of the immersed parts of the suspension cables 6 in the measurement medium, and thus affect the accuracy of the buoyancy force applied to the obtained sample 7.
The control structure 12 can control the immersion depth of the sample frame assembly in the measuring medium through the lifting mechanism 1, so that the immersion depth of the sample frame assembly in the measuring medium can be kept consistent during each measurement, the buoyancy measurement precision can be improved, and the automation degree of the buoyancy measurement device can be improved.
The measurement of the buoyancy borne by the sample 7 by using the buoyancy measuring device and the first measuring mechanism comprises the following main steps:
when the weight measured by the first measuring device 3 reaches a preset value, the medium supply device stops supplying the measuring medium to the measuring container 9, and the liquid level of the measuring medium is the same as the height of the overflow structure 16. At the same time, it is ensured that no measuring medium is present in the collecting container 10; the step is a preparation step;
measuring the net weight G of the collecting container 10 using the second measuring device 420；
Immersing the unloaded sample frame assembly into the measuring container 9 by using the lifting mechanism 1, controlling the control structure 12 to ensure that the immersion depth of the sample frame assembly reaches and maintains a preset depth L, completely immersing the frame 5 in the measuring medium in the measuring container 9 at the preset depth L, and measuring the total weight G of the measuring medium in the collecting container 10 and the collecting container 10 by using the second measuring mechanism 421；
Lifting the unloaded sample frame assembly to be above the liquid level of the measuring medium by using the lifting mechanism 1, repeating the preparation steps, and putting and fixing the sample 7 in the frame 5 of the sample frame;
immersing the sample frame assembly with the sample 7 in the measuring container 9 by the lifting mechanism 1, keeping the immersion depth of the sample frame assembly at the preset depth L under the control of the control structure 12, and measuring the total weight G of the collecting container 10 and the measuring medium in the collecting container 10 by the second measuring mechanism 422；
Calculating the buoyancy F to which the sample 7 is subjected1，F1＝(G22-G20)-(G21-G20)。
The method for measuring the buoyancy borne by the sample 7 by using the buoyancy measuring device and the second measuring mechanism comprises the following main steps:
repeating the preparing step;
measuring the weight G of an empty sample frame assembly in air using a third measuring device 2Frame；
The third measuring device 2 is used to measure the weight G of the sample frame assembly carrying the sample 7 in the airGeneral assembly；
Repeating the preparing step;
the sample frame assembly carrying the sample 7 is immersed into the measuring vessel 9 by the lifting mechanism 1, the immersion depth is a preset depth L under the control of the control structure 12, and the third measuring mechanism 2 is used for measuring the weight F of the sample frame assembly carrying the sample 7 in the measuring mediumGeneral assembly；
The empty sample frame assembly is immersed into the measuring container 9 by the lifting mechanism 1, the immersion depth of the empty sample frame assembly is a preset depth L under the control of the control structure 12, and the weight F of the empty sample frame assembly in the measuring medium is measured by the third measuring mechanism 2Frame；
Calculating the buoyancy F to which the sample 7 is subjected2，F2＝(GGeneral assembly-GFrame)-(FGeneral assembly-FFrame)。
The measurement of the buoyancy of the sample 7 using the buoyancy measuring device described above may further include the following verification steps:
obtaining F1And F2Is measured accurately when the absolute value of the difference is less than a preset determination value, and the buoyancy is F ═ F (F)1+F2)/2。
The buoyancy measuring device of the embodiment can be continuously used, and the first measuring mechanism and the second measuring mechanism can be simultaneously applied to each measurement and the measurement result can be verified. Through at every turn measure the back for measuring the container and supply measuring medium automatically for the process labour saving and time saving of supplying measuring medium just is difficult for receiving the interference of human factor, can measure same sample 7 and measure a plurality of samples 7 one by one high-efficient, accurate many times, is favorable to improving buoyancy measurement efficiency and buoyancy measurement accuracy.
Meanwhile, the buoyancy measuring device of the present embodiment does not limit the measuring medium, which may be, but is not limited to, water, kerosene, or absolute ethanol, so as to meet the testing requirements of different (rock) samples 7.
The buoyancy measuring device of the present embodiment is not limited to the external shape of the (rock) sample 7, and can be applied to the (rock) sample 7 having different external shapes such as a plunger shape, a block shape, and a granular shape.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A buoyancy measuring device, comprising:
a measuring container for accommodating a measuring medium;
the first measuring mechanism is used for measuring the total weight of the measuring container and the measuring medium in the measuring container;
a medium supply mechanism for supplying a measuring medium to the measuring container; and
and the control mechanism is respectively in communication connection with the first measuring mechanism and the medium supply mechanism so as to control the medium supply mechanism to stop conveying the measuring medium to the measuring container when the weight measured by the first measuring mechanism reaches a preset value.
2. The buoyancy measuring device according to claim 1, wherein the medium supply means comprises a liquid pump, a first end of the liquid pump being connected to the liquid reservoir and a second end of the liquid pump being connected to the inlet of the liquid take-off pipe;
the outlet of the liquid taking pipe is positioned above the measuring container, or the outlet of the liquid taking pipe extends into the measuring container.
3. The buoyancy measuring device according to claim 1, wherein the first measuring mechanism is a first scale, the first scale being located below the measuring vessel.
4. The buoyancy measuring device according to claim 1, further comprising a collection vessel located below an outlet of the overflow structure of the measurement vessel;
and the second measuring mechanism is used for measuring the total weight of the collecting container and the measuring medium in the collecting container and the weight of the collecting container, and acquiring the weight of the measuring medium overflowing from the measuring container into the collecting container.
5. The buoyancy measuring device of claim 4, wherein the second measuring mechanism is a second scale located below the collection vessel.
6. The buoyancy measuring device of claim 1, further comprising a sample frame assembly comprising:
a frame for carrying a sample; and
and the sling is used for hanging the frame.
7. The buoyancy measuring device according to claim 6 further comprising a third measuring mechanism removably coupled to the sample frame assembly for measuring the weight of the sample frame assembly in air and measurement medium and the total weight of the sample frame assembly and sample in air and measurement medium.
8. The buoyancy measuring device according to claim 7 wherein the third measuring means is a tension meter located above the measuring vessel.
9. The buoyancy measuring device according to claim 6 further comprising a lifting mechanism for moving the sample frame assembly in a vertical direction.
10. The buoyancy measuring device according to claim 9 wherein the lifting mechanism is communicatively connected to the control mechanism, the control mechanism controlling the depth of immersion of the sample frame assembly in the measurement medium via the lifting mechanism.
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| CN202020946976.9U CN212275132U (en) | 2020-05-29 | 2020-05-29 | Buoyancy measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063544A (en) * | 2021-03-17 | 2021-07-02 | 内江市计量测试研究所 | Dynamometer calibrating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063544A (en) * | 2021-03-17 | 2021-07-02 | 内江市计量测试研究所 | Dynamometer calibrating device |
| CN113063544B (en) * | 2021-03-17 | 2022-07-19 | 内江市计量测试研究所 | Dynamometer calibrating device |
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