CN209372626U - A kind of liquid specific gravity detection device - Google Patents
A kind of liquid specific gravity detection device Download PDFInfo
- Publication number
- CN209372626U CN209372626U CN201822153704.9U CN201822153704U CN209372626U CN 209372626 U CN209372626 U CN 209372626U CN 201822153704 U CN201822153704 U CN 201822153704U CN 209372626 U CN209372626 U CN 209372626U
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- grip block
- mounting plate
- block
- thermometer
- specific gravity
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Abstract
The utility model discloses a kind of liquid specific gravity detection devices, including pedestal, described pedestal one end is provided with electric pushrod, the electric pushrod upper end is fixedly installed with mounting plate, perforation is vertically provided through on the mounting plate, thermometer clamping device is provided on the mounting plate, the thermometer clamping device includes the first grip block being fixedly mounted on the mounting plate, first grip block one end is located in the vertical direction on the inside of the perforation, the second grip block and the power mechanism for driving second grip block to move to the direction close to or far from first grip block are slidably fitted on the mounting plate, thermometer is vertically provided in the perforation, the test side of the thermometer is down-set, second grip block moves to the first grip block and can clamp the thermometer, first folder Holding block and the second grip block is rubber block.With preferably being detected to liquid specific gravity, advantage easy to use.
Description
Technical field
The utility model relates to experimental instrument technologies, and in particular to a kind of liquid specific gravity detection device.
Background technique
Specific gravity is a kind of physical index of substance, according to specific gravity size can help we understand food quality purity,
Situation is adulterated, specific weight determine is the important component of fluid analysis test, is had great importance to filling liquid metering.
Currently, be mainly the weight W1 by the 20 DEG C of water first surveyed with temperature-gravity bottle to the measuring device of liquid specific gravity,
The weight W2 for measuring 20 DEG C of samples after specific gravity bottle is cleaned up again, by W2/W1 up to specific gravity d2020, and specific gravity d420=
The ρ of d2020*20 DEG C of water of specific gravity, wherein ρ is density of the water at 20 degrees Celsius.Water and sample are filled in specific gravity bottle, then filling
Liquid spill is easily caused in the process, so that specific gravity bottle outer wall is stained with water or sample, the easy wiped clean of water, but grease sample is glutinous
Degree is big, is not easy wiped clean, be easy to cause weighing bigger than normal；Because sample and water easily import bubble in pouring process, cause to weigh
It is less than normal.The method is cumbersome, and disturbing factor is numerous, high to the personal competency profiling of operator, and unskilled personnel detect weight
Renaturation is low, easily causes the situation of measurement inaccuracy.
Utility model content
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to how to provide a kind of energy
Enough preferably to detect to liquid specific gravity, testing result accuracy is high, liquid specific gravity detection device easy to use.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of liquid specific gravity detection device, including pedestal, described pedestal one end are provided with electric pushrod, the electric pushrod
Upper end is fixedly installed with mounting plate, and perforation is vertically provided through on the mounting plate, is provided with thermometer on the mounting plate
Clamping device, the thermometer clamping device include the first grip block being fixedly mounted on the mounting plate, first folder
It holds block one end to be located in the vertical direction on the inside of the perforation, is slidably fitted with the second grip block on the mounting plate and is used for
Drive second grip block to close to or far from first grip block the power mechanism that moves of direction, in the perforation
It is vertically provided with thermometer, the test side of the thermometer is down-set, and second grip block moves energy to the first grip block
Enough to clamp the thermometer, first grip block and the second grip block are rubber block.
In the technical program, when being detected to liquid specific gravity, liquid is placed in graduated cylinder, graduated cylinder is placed on bottom
On seat, then grease density meter is placed in a liquid, so that grease density meter lower end is all dipped into liquid and reaches
Thermometer, is then placed in perforation by the position of 0.900-0.930, and power mechanism drives the second grip block to close to the first folder
The direction movement for holding block clamps the first grip block, and then electric pushrod moves downward, so that the test side of thermometer is soaked
Bubble in a liquid, utilizes the temperature T of thermometer detection liquidSample, D is denoted as using the specific gravity of grease density meter detection liquidSample, lead to
Cross D20/4={ DSample+0.00064(TSample- 20) }, D20/20=D20/4/D20, wherein D20The density for being water at 20 DEG C, water temperature 20
DEG C when water density be 0.998230g/ml；D20/4The specific gravity of sample when for 20 DEG C of oil temperature, 4 DEG C of water temperature；D20/20For 20 DEG C of oil temperature,
The specific gravity of sample at 20 DEG C of water temperature, wherein sample is the liquid in experiment.First grip block and the second grip block are rubber block,
Thermometer can be clamped, avoid pressing from both sides bad.
Further, the clamping device includes the driving motor for being fixedly mounted on the mounting plate lower end, the driving
Motor is arranged close to first grip block, and the output shaft of the driving motor passes through the mounting plate and sets up, and described the
Two grip block both ends are located on the outside of first grip block both ends, and second grip block both ends are fixedly connected with drawstring, described
Drawstring is fixedly connected with the output shaft of the driving motor, and second grip block both ends lower surface is fixedly installed with downwards cunning
Block is provided on the mounting plate and is located on the outside of the perforation with the matched sliding slot of the sliding block, the sliding slot, in the sliding slot
It is provided with the reset spring being fixedly connected with the sliding block.
In this way, driving motor acts, it is wound to drawing high, then pulls the second grip block to the direction of the first grip block
Movement, the sliding block of the second grip block slide in sliding slot, can limit to the direction of motion of the second grip block, utilize second
Grip block is moved to the first clamping Block direction and is clamped to thermometer.
Further, the end of the second grip block described in face is vertically provided with guide post on the mounting plate, described to lead
It is arranged between first grip block and the output shaft of the driving motor to column.
In this way, being provided with guide post, drawstring can be oriented to, be preferably wound.
Further, the sliding block includes the column for being fixedly mounted on the mounting plate lower end, and the column lower end is fixed
Limited block is installed, the shape of the sliding slot and the column and the limited block matches.
In this way, be provided with limited block, can the direction of motion preferably to the second grip block limit, improve reliable
Property.
Further, the base upper surface is recessed graduated cylinder location hole, and the graduated cylinder location hole face is arranged in institute
State perforation lower section.
In this way, being provided with graduated cylinder location hole, preferably graduated cylinder can be positioned, thermometer is facilitated to be placed on liquid
In.
Further, the temperature is calculated as 50 DEG C of microthermometers.
In this way, can preferably be detected to fluid temperature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid specific gravity detection device described in specific embodiment of the present invention.
Fig. 2 is the top view of Fig. 1.
Specific embodiment
1-2 the utility model is described in further detail with reference to the accompanying drawing.
A kind of liquid specific gravity detection device, including pedestal 1, described 1 one end of pedestal is provided with electric pushrod 2, described electronic
2 upper end of push rod is fixedly installed with mounting plate 3, and perforation 4 is vertically provided through on the mounting plate 3, is arranged on the mounting plate 3
There is thermometer clamping device, the thermometer clamping device includes the first grip block 41 being fixedly mounted on the mounting plate 3,
Described first grip block, 41 one end is located at 4 inside of perforation in the vertical direction, is slidably fitted with second on the mounting plate 3
Grip block 42 and for driving second grip block 42 to move to close to or far from the direction of first grip block 41
Power mechanism, it is described perforation 4 in be vertically provided with thermometer 5, the test side of the thermometer 5 is down-set, described second
Grip block 42 can clamp the thermometer 5 to the movement of the first grip block 41, first grip block 41 and the second folder
Holding block 42 is rubber block.
In the technical program, when being detected to liquid specific gravity, liquid is placed in graduated cylinder 51, graduated cylinder 51 is placed
On pedestal 1, then grease density meter 52 is placed in a liquid, so that grease density meter lower end is all dipped into liquid and arrives
Up to the position of 0.900-0.930, then thermometer is placed in perforation, power mechanism drives the second grip block to close to first
The direction movement of grip block clamps the first grip block, and then electric pushrod moves downward, so that the test side of thermometer
It impregnates in a liquid, utilizes the temperature T of thermometer detection liquidSample, D is denoted as using the specific gravity of grease density meter detection liquidSample,
Pass through D20/4={ DSample+0.00064(TSample- 20) }, D20/20=D20/4/D20, wherein D20The density for being water at 20 DEG C, water temperature
The density of water is 0.998230g/ml at 20 DEG C；D20/4The specific gravity of sample when for 20 DEG C of oil temperature, 4 DEG C of water temperature；D20/20For oil temperature 20
DEG C, 20 DEG C of water temperature when sample specific gravity, wherein sample be experiment in liquid.First grip block and the second grip block are rubber
Block can clamp thermometer, avoid pressing from both sides bad.
Further, the clamping device includes the driving motor 6 for being fixedly mounted on 3 lower end of mounting plate, the drive
Dynamic motor 6 is arranged close to first grip block 41, and the output shaft of the driving motor 6 passes through the mounting plate 3 and sets up,
Second grip block, 42 both ends are located on the outside of 41 both ends of the first grip block, and 42 both ends of the second grip block are fixedly connected
There is drawstring 61, the drawstring 61 is fixedly connected with the output shaft of the driving motor 6, the 42 both ends lower surface of the second grip block
It is fixedly installed with sliding block downwards, is provided on the mounting plate 3 and is located at institute with the matched sliding slot 31 of the sliding block, the sliding slot 31
4 outside of perforation is stated, is provided with the reset spring 32 being fixedly connected with the sliding block in the sliding slot 31.
In this way, driving motor acts, it is wound to drawing high, then pulls the second grip block to the direction of the first grip block
Movement, the sliding block of the second grip block slide in sliding slot, can limit to the direction of motion of the second grip block, utilize second
Grip block is moved to the first clamping Block direction and is clamped to thermometer.In driving motor reversion, driven using reset spring
Second grip block is resetted.
Further, the end of second grip block 42 described in face is vertically provided with guide post 7, institute on the mounting plate 3
Guide post 7 is stated to be arranged between first grip block 41 and the output shaft of the driving motor 6.
In this way, being provided with guide post, drawstring can be oriented to, be preferably wound.
Further, the sliding block includes the column 8 for being fixedly mounted on 3 lower end of mounting plate, and 8 lower end of column is solid
Dingan County is equipped with limited block 81, and the shape of the sliding slot 31 and the column 8 and the limited block 81 matches.
In this way, be provided with limited block, can the direction of motion preferably to the second grip block limit, improve reliable
Property.
Further, 1 upper surface of pedestal is recessed graduated cylinder location hole 11,11 face of the graduated cylinder location hole setting
Below the perforation 4.
In this way, being provided with graduated cylinder location hole, preferably graduated cylinder can be positioned, thermometer is facilitated to be placed on liquid
In.
Further, the thermometer 5 is 50 DEG C of microthermometers.
In this way, can preferably be detected to fluid temperature.
Use principle:
When being detected to liquid specific gravity, liquid is placed in graduated cylinder, graduated cylinder is placed on pedestal, it then will be oily
Lipid density meter is placed in a liquid, so that grease density meter lower end is all dipped into the position that 0.900-0.930 is reached in liquid,
Then thermometer is placed in perforation, power mechanism drives the second grip block to move to the direction close to the first grip block to the
One grip block is clamped, and then electric pushrod moves downward, so that the test side of thermometer is impregnated in a liquid, utilizes temperature
The temperature T of meter detection liquidSample, D is denoted as using the specific gravity of grease density meter detection liquidSample, pass through D20/4={ DSample+
0.00064(TSample- 20) }, D20/20=D20/4/D20, wherein D20The density for being water at 20 DEG C, the density of water at 20 DEG C of water temperature
For 0.998230g/ml；D20/4The specific gravity of sample when for 20 DEG C of oil temperature, 4 DEG C of water temperature；D20/20To be tried when 20 DEG C of oil temperature, 20 DEG C of water temperature
The specific gravity of sample, wherein sample is the liquid in experiment.Electric pushrod and driving motor are connected with electric-control system, and it is dynamic up and down to control it
Make, there are two electric pushrod settings.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that；
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution should all cover in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of liquid specific gravity detection device, which is characterized in that including pedestal, described pedestal one end is provided with electric pushrod, institute
It states electric pushrod upper end and is fixedly installed with mounting plate, perforation is vertically provided through on the mounting plate, is set on the mounting plate
It is equipped with thermometer clamping device, the thermometer clamping device includes the first grip block being fixedly mounted on the mounting plate,
First grip block one end is located in the vertical direction on the inside of the perforation, is slidably fitted with the second clamping on the mounting plate
Block and for drive second grip block to close to or far from first grip block the power mechanism that moves of direction,
Thermometer is vertically provided in the perforation, the test side of the thermometer is down-set, and second grip block is pressed from both sides to first
The thermometer can be clamped by holding block movement, and first grip block and the second grip block are rubber block.
2. a kind of liquid specific gravity detection device according to claim 1, it is characterised in that: the clamping device includes fixing
It is mounted on the driving motor of the mounting plate lower end, the driving motor is arranged close to first grip block, the driving electricity
The output shaft of machine passes through the mounting plate and sets up, and second grip block both ends are located at outside first grip block both ends
Side, second grip block both ends are fixedly connected with drawstring, and the drawstring is fixedly connected with the output shaft of the driving motor, institute
It states the second grip block both ends lower surface and is fixedly installed with sliding block downwards, be provided on the mounting plate and the matched cunning of the sliding block
Slot, the sliding slot are located on the outside of the perforation, are provided with the reset spring being fixedly connected with the sliding block in the sliding slot.
3. a kind of liquid specific gravity detection device according to claim 2, it is characterised in that: on the mounting plate described in face
The end of second grip block is vertically provided with guide post, and the guide post is arranged in first grip block and the driving motor
Output shaft between.
4. a kind of liquid specific gravity detection device according to claim 3, it is characterised in that: the sliding block includes being fixedly mounted
Column in the mounting plate lower end, the column lower end are fixedly installed with limited block, the sliding slot and the column and institute
The shape for stating limited block matches.
5. a kind of liquid specific gravity detection device according to claim 1, it is characterised in that: the base upper surface concave shaped
At graduated cylinder location hole, the graduated cylinder location hole face is arranged below the perforation.
6. a kind of liquid specific gravity detection device according to claim 1, it is characterised in that: the temperature is calculated as 50 DEG C of precisions
Thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153704.9U CN209372626U (en) | 2018-12-20 | 2018-12-20 | A kind of liquid specific gravity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153704.9U CN209372626U (en) | 2018-12-20 | 2018-12-20 | A kind of liquid specific gravity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372626U true CN209372626U (en) | 2019-09-10 |
Family
ID=67830102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822153704.9U Active CN209372626U (en) | 2018-12-20 | 2018-12-20 | A kind of liquid specific gravity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372626U (en) |
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2018
- 2018-12-20 CN CN201822153704.9U patent/CN209372626U/en active Active
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