CN209230768U - A kind of constant-temp. electronic balance - Google Patents
A kind of constant-temp. electronic balance Download PDFInfo
- Publication number
- CN209230768U CN209230768U CN201821970998.8U CN201821970998U CN209230768U CN 209230768 U CN209230768 U CN 209230768U CN 201821970998 U CN201821970998 U CN 201821970998U CN 209230768 U CN209230768 U CN 209230768U
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- China
- Prior art keywords
- hole
- insulation construction
- storehouse
- weighing
- rear cover
- Prior art date
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- 238000010276 construction Methods 0.000 claims abstract description 45
- 238000009413 insulation Methods 0.000 claims abstract description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005303 weighing Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000010257 thawing Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010876 biochemical test Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of constant-temp. electronic balance, specifically include that pedestal, fore-stock, rear cover and top cover, pedestal middle is equipped with weighing plate, fore-stock, rear cover and top cover cooperation glass form a closed weighing storehouse on pedestal, it is covered after described equipped with insulation construction, insulation construction one end, which is located at, to be weighed in storehouse, the insulation construction other end, which is located at, to be weighed outside storehouse, insulation construction is located at one end in weighing storehouse equipped with through-hole and through-hole is located at the surface of weighing plate, insulation construction is located at the one end weighed outside storehouse and is equipped with groove, liquid nitrogen is held in groove, compared with the prior art, the constant-temp. electronic balance will be weighed inside the Conduction At Low Temperature outside storehouse to weighing storehouse by insulation construction, liquid nitrogen in groove is cold temperature source, it is conducted by insulation construction to through hole, the weighing region in through-hole is set to keep lower temperature, it can prevent fresh sample from freezing Melt, while liquid nitrogen addition is convenient, the volatilization of liquid nitrogen will not cause to weigh the fluctuation of storehouse interior air-flow.
Description
Technical field
The utility model relates to biochemical test equipment technical field more particularly to a kind of constant-temp. electronic balances.
Background technique
Weighing apparatus used in laboratory is generally electronic balance, and precision is high, multiple functional, can sufficiently meet reality
Test the demand of room quality analysis.But when the sample for carrying out Bioexperiment is fresh sample, fresh sample is generally in the state of freezing,
It before experiment, needs to sample and weigh, and is operated from the state that freezes to weighing, fresh sample is transferred to normal temperature state from low-temperature condition, holds
Freeze thawing easily occurs, not only influences sample quality, and freeze thawing causes airflow fluctuation, can also interfere the precision of weighing.Therefore, fresh sample
Heat preservation when weighing is particularly important.
Utility model content
The purpose of this utility model is that being directed to the existing state of the art, a kind of constant-temp. electronic balance is provided, heat preservation is passed through
Structure will weigh the Conduction At Low Temperature outside storehouse to weighing inside storehouse, and weighing region in through-hole is made to keep lower temperature, can be to prevent
Only freeze thawing occurs for fresh sample.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of constant-temp. electronic balance specifically includes that pedestal, fore-stock, rear cover and top cover, and pedestal middle, which is equipped with, to be weighed
Disk, fore-stock and rear cover are separately positioned on pedestal front and rear sides, and top cover setting is covered with after in fore-stock, in fore-stock and preceding
Glass is inlaid between at left and right sides of bracket and rear cover, fore-stock, rear cover and top cover cooperation glass form one on pedestal
Closed weighing storehouse, top cover are equipped with injection port, the sample introduction plate sealing that injection port passes through sliding.
It is covered after described equipped with insulation construction, insulation construction one end, which is located at, to be weighed in storehouse, and the insulation construction other end, which is located at, to be claimed
It measures outside storehouse, insulation construction is located at one end in weighing storehouse equipped with through-hole and through-hole is located at the surface of weighing plate, insulation construction position
It is equipped with groove in weighing one end outside storehouse, holds liquid nitrogen in groove.
In above-mentioned technical proposal, the insulation construction is divided into several segments, and several segments insulation construction is covered after along vertical straight
The height of the setting of line interval, every section of insulation construction is not more than 5cm.
Further, the through-hole is thin-walled circular hole, and groove is thin-walled circular groove.
Further, continuous dimpled grain or burr are equipped on the inner wall of the through-hole and groove.
Preferably, fixed thermometer on the through-hole wall, thermometer is not contacted with through-hole wall.
In above-mentioned technical proposal, the rear cover is divided into left cover and right cover plate along central axes, on left cover and right cover plate
Even to be equipped with several mutual corresponding half mounting holes, two mutual corresponding half mounting holes are spliced into mounting hole.
The utility model has the following beneficial effects:
1, compared with the prior art, which will weigh the Conduction At Low Temperature outside storehouse to title by insulation construction
It measures inside storehouse, the liquid nitrogen in groove is cold temperature source, is conducted by insulation construction to through hole, keeps the weighing region in through-hole
Lower temperature can prevent fresh sample from freeze thawing occurs, while liquid nitrogen addition is convenient, and the volatilization of liquid nitrogen will not cause to weigh gas in storehouse
The fluctuation of stream；
2, insulation construction is divided into several segments, can select appropriate number of insulation construction according to the height of sample in test tube
And liquid nitrogen is added, avoid the waste of liquid nitrogen；
3, through-hole and groove are circular structure, are equipped with continuous dimpled grain or burr on the inner wall of through-hole and groove, with
Upper two features have increased separately liquid nitrogen and groove and through-hole and have weighed the contact area in region, improve heat exchange efficiency；
4, it is being added wait weigh before fresh sample weighed, liquid nitrogen is added in advance, can be read inside through-hole by thermometer
Temperature, when which meets heat preservation demand, then carry out weighing operation, and the temperature inside through-hole can be observed at any time；
5, rear cover is divided into left cover and right cover plate along central axes, and rear cover is by being spliced, conducive to the assembly of insulation construction.
Detailed description of the invention
Attached drawing 1 is the perspective view of the utility model；
Attached drawing 2 be the utility model without insulation construction when perspective view；
Attached drawing 3 be the utility model without insulation construction when rearview；
Attached drawing 4 is the utility model insulation construction perspective view；
Attached drawing 5 is the utility model insulation construction bottom view.
Mark explanation: 1, top cover, 2, injection port, 3, fore-stock, 4, rear cover, 4a, left cover, 4b, right cover plate, 5, pedestal,
6, insulation construction, 6a, through-hole, 6b, groove, 7, weighing plate, 8, mounting hole.
Specific embodiment
It please referring to shown in Fig. 1-5, a kind of constant-temp. electronic balance specifically includes that pedestal 5, fore-stock 3, rear cover 4 and top cover 1,
5 middle of pedestal is equipped with weighing plate 7, and weighing plate 7 is equipped with test tube bracket, and test tube bracket is used to place the test tube for holding sample,
Fore-stock 3 and rear cover 4 are separately positioned on 5 front and rear sides of pedestal, and top cover 1 is arranged on fore-stock 3 and rear cover 4, in fore-stock 3 with
And it is inlaid with glass between 4 left and right sides of fore-stock 3 and rear cover, fore-stock 3, rear cover 4 and top cover 1 cooperate glass in pedestal 5
One closed weighing storehouse of upper formation, top cover 1 are equipped with injection port 2, and injection port 2 is for passing into the test tube for holding sample, sample introduction
Mouth 2 is by the sample introduction plates sealing of sliding, and rear cover 4 is equipped with pin hole 9, and the setting of sample introduction plate is in pin hole 9.
The rear cover 4 is equipped with insulation construction 6, and 6 one end of insulation construction, which is located at, to be weighed in storehouse, 6 other end position of insulation construction
In weighing outside storehouse, insulation construction 6 is located at one end in weighing storehouse equipped with through-hole 6a and through-hole 6a is located at the surface of weighing plate 7,
Insulation construction 6 is located at the one end weighed outside storehouse and is equipped with groove 6b, holds liquid nitrogen in groove 6b.Rear cover 4 uses plastic production, heat preservation
Structure 6 is made of aluminium.
Specifically, the constant-temp. electronic balance will be weighed inside the Conduction At Low Temperature outside storehouse to weighing storehouse by insulation construction 6,
Liquid nitrogen in groove 6b is cold temperature source, is located by the conduction of insulation construction 6 to through-hole 6a, make weighing region holding in through-hole 6a compared with
Low temperature can prevent fresh sample from freeze thawing occurs, while groove 6b is being weighed outside storehouse, and liquid nitrogen addition is convenient, the volatilization of liquid nitrogen
It not will cause the fluctuation for weighing storehouse interior air-flow.
Refering to Figure 1, the insulation construction 6 divides for several segments, several segments insulation construction 6 in above-mentioned technical proposal
It is arranged on rear cover 4 along vertical straight line interval, the height of every section of insulation construction 6 is not more than 5cm.It, can be according to test tube before weighing
The height of interior sample selects appropriate number of insulation construction 6 and liquid nitrogen is added, avoids the waste of liquid nitrogen.
It please refers to shown in Fig. 4-5, further, the through-hole 6a is thin-walled circular hole, and groove 6b is thin-walled circular groove, described logical
Continuous dimpled grain or burr are equipped on the inner wall of hole 6a and groove 6b.Through-hole 6a and groove 6b is circular structure, through-hole 6a
Be equipped with continuous dimpled grain or burr on the inner wall of groove 6b, two above feature has increased separately liquid nitrogen and groove 6b and has led to
Hole 6a and the contact area for weighing region improve heat exchange efficiency.
Preferably, fixed thermometer on the through-hole 6a inner wall, it is being added wait weigh before fresh sample weighed, in advance
Liquid nitrogen is added, the temperature inside through-hole 6a can be read by thermometer, when which meets heat preservation demand, then carries out weighing behaviour
Make, and the temperature inside through-hole 6a can be observed at any time.Thermometer is not contacted with through-hole 6a inner wall, avoids insulation construction 6
Temperature interferes the measurement of thermometer.
It please referring to shown in Fig. 3, in above-mentioned technical proposal, the rear cover 4 is divided into left cover 4a and right cover plate 4b along central axes,
Several mutual corresponding half mounting holes, two mutual corresponding half mounting hole splicings are uniformly provided on left cover 4a and right cover plate 4b
For mounting hole 8.Rear cover 4 is by being spliced, conducive to the assembly of insulation construction 6.
Certainly, the above is only the preferred embodiment of the utility model, and the use scope of the utility model is not limited with this,
Therefore it is all made in the utility model principle it is equivalent change should be included in the protection scope of the utility model.
Claims (6)
1. a kind of constant-temp. electronic balance specifically includes that pedestal (5), fore-stock (3), rear cover (4) and top cover (1), pedestal (5) is just
Centre is equipped with weighing plate (7), and fore-stock (3) and rear cover (4) are separately positioned on pedestal (5) front and rear sides, and top cover (1) is arranged preceding
On bracket (3) and rear cover (4), it is inlaid with glass in fore-stock (3) and between fore-stock (3) and rear cover (4) left and right sides,
Fore-stock (3), rear cover (4) and top cover (1) cooperation glass form a closed weighing storehouse on pedestal (5), and top cover is set on (1)
Have injection port (2), the sample introduction plate sealing that injection port (2) passes through sliding, it is characterised in that: the rear cover (4) is equipped with heat preservation knot
Structure (6), insulation construction (6) one end, which is located at, to be weighed in storehouse, and insulation construction (6) other end, which is located at, to be weighed outside storehouse, insulation construction (6) position
It is equipped with the surface that through-hole (6a) and through-hole (6a) are located at weighing plate (7) in weighing one end in storehouse, insulation construction (6) is located at title
The one end measured outside storehouse is equipped with groove (6b), holds liquid nitrogen in groove (6b).
2. a kind of constant-temp. electronic balance according to claim 1, it is characterised in that: the insulation construction (6) is divided into several
Section, several segments insulation construction (6) are arranged on rear cover (4) along vertical straight line interval, and the height of every section of insulation construction (6) is not more than
5cm。
3. a kind of constant-temp. electronic balance according to claim 2, it is characterised in that: the through-hole (6a) is thin-walled circular hole,
Groove (6b) is thin-walled circular groove.
4. a kind of constant-temp. electronic balance according to claim 3, it is characterised in that: the through-hole (6a) and groove (6b)
Continuous dimpled grain or burr are equipped on inner wall.
5. a kind of constant-temp. electronic balance according to any one of claims 1-4, it is characterised in that: in the through-hole (6a)
Fixed thermometer on wall, thermometer are not contacted with through-hole (6a) inner wall.
6. a kind of constant-temp. electronic balance according to claim 2, it is characterised in that: the rear cover (4) is divided into along central axes
Several mutual corresponding half are uniformly provided on left cover (4a) and right cover plate (4b), left cover (4a) and right cover plate (4b) to install
Hole, two mutual corresponding half mounting holes are spliced into mounting hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821970998.8U CN209230768U (en) | 2018-11-27 | 2018-11-27 | A kind of constant-temp. electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821970998.8U CN209230768U (en) | 2018-11-27 | 2018-11-27 | A kind of constant-temp. electronic balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209230768U true CN209230768U (en) | 2019-08-09 |
Family
ID=67504960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821970998.8U Active CN209230768U (en) | 2018-11-27 | 2018-11-27 | A kind of constant-temp. electronic balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209230768U (en) |
-
2018
- 2018-11-27 CN CN201821970998.8U patent/CN209230768U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240124 Address after: Room 01, 2nd Floor, Building C2-1, Building C2, C6, and C7, Wuhan National Bioindustry Base, No. 666 Gaoxin Avenue, Wuhan Donghu New Technology Development Zone, Wuhan, Hubei Province, 430075 Patentee after: Wuhan Mai Tver Biological Technology Co.,Ltd. Country or region after: China Address before: 314000 Room 101, building D1, Shanghai talent Pioneer Park, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: JIAXING METWARE METABOLIC BIOLOGICAL TECHNOLOGY Co.,Ltd. Country or region before: China |