CN202331619U - Random sampler for statistically sampling - Google Patents
Random sampler for statistically sampling Download PDFInfo
- Publication number
- CN202331619U CN202331619U CN2011204927441U CN201120492744U CN202331619U CN 202331619 U CN202331619 U CN 202331619U CN 2011204927441 U CN2011204927441 U CN 2011204927441U CN 201120492744 U CN201120492744 U CN 201120492744U CN 202331619 U CN202331619 U CN 202331619U
- Authority
- CN
- China
- Prior art keywords
- sample barrel
- sampling
- total
- sample
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a random sampler for statistically sampling. The existing sampling mainly utilizes manual sampling and the representativeness of a sample is easily influenced by manual factors, so that the sampling error is greater and the accuracy of scientific research is influenced. The random sampler disclosed by the utility model is composed of a total sample barrel (1), wherein the total sample barrel is connected with an upper over (2); a total agitator (3) is arranged in the middle of the total sample barrel and the total sample barrel is provided with a final outlet (4); the total sample barrel is internally provided with a group of classified sample barrels (5) and each classified sample barrel is internally provided with a small agitator (6); and each classified sample barrel is provided with a classified sample outlet (7) and each classified sample barrel is internally provided with a group of representative balls (8). The random sampler for statistically sampling, disclosed by the utility model, is used for sampling in statistical research.
Description
Technical field:
the utility model relates to a kind of statistics sampling and uses the grab sample machine.
Background technology:
are in order to be applied to statistics on science, industry and the social concern; Statistics is begun by the research parent usually; But because actual restriction; Usually can not study each individuality in the parent, select each document of the subclass replacement research parent of research parent in the reality usually, this sub-set is called sample.Accidentalia owing to random sampling in the sampling process makes the structure of sample constituent parts be not enough to represent the structure of overall constituent parts, and causes that sampling index and the absolute dispersion that reaches entirely between the index are called sampling error.The factor that influences sampling error has: the difference degree of overall constituent parts value of statistical indicant, the units of sample, the method for sampling, the organizational form of sample survey etc.; Sample index's representative low to overall objective do not possess researching value if sampling error is too big.Hand sampling is mainly adopted in present sampling, and the representativeness of sample receives artificial factor easily, causes sampling error bigger, influences the accuracy of scientific research.
Summary of the invention:
The purpose of
the utility model is that the problem that is directed against above-mentioned existence provides a kind of statistics sampling to use the grab sample machine, can effectively reduce sampling error, improves the representativeness of sample.
Above-mentioned purpose realizes through following technical scheme:
The grab sample machine is used in the sampling of
statistics, and its composition comprises: total sample barrel connects loam cake on described total sample barrel; In the middle of described total sample barrel total stirring machine is installed; Have final outlet on described total sample barrel, a group categories sample barrel is installed in described total sample barrel the inside, and little stirring machine is installed in each described classification samples bucket the inside; Have the classification samples outlet on each described classification samples bucket, be equipped with one group inside each classification samples bucket and represent ball.
Beneficial effect:
are being represented maternal class mark on the ball earlier when 1. the utility model is taken a sample; Be contained in then in each classification samples bucket; Along with on behalf of ball, the stirring of little stirring machine export out from classification samples at random to drop on total sample barrel; Under the stirring of total stirring machine, the representative ball in the total sample barrel final outlet from total sample barrel at random comes out to be called the sample of choosing, the phenomenon that the sampling error of having avoided hand sampling to cause is excessive.
2. the utility model is simple in structure, makes easy to use.
Description of drawings:
accompanying drawing 1 is the structural representation of the utility model.
Embodiment:
Embodiment 1:
The grab sample machine is used in the sampling of
statistics; Its composition comprises: total sample barrel 1; Connect loam cake 2 on described total sample barrel, in the middle of described total sample barrel total stirring machine 3 is installed, have final outlet 4 on described total sample barrel; A group categories sample barrel 5 is installed in described total sample barrel the inside; Little stirring machine 6 is installed in each described classification samples bucket the inside, has classification samples outlet 7 on each described classification samples bucket, is equipped with one group inside each classification samples bucket and represents ball 8.
Claims (1)
1. the grab sample machine is used in a statistics sampling, and its composition comprises: total sample barrel is characterized in that: connect loam cake on described total sample barrel; In the middle of described total sample barrel total stirring machine is installed; Have final outlet on described total sample barrel, a group categories sample barrel is installed in described total sample barrel the inside, and little stirring machine is installed in each described classification samples bucket the inside; Have the classification samples outlet on each described classification samples bucket, be equipped with one group inside each classification samples bucket and represent ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204927441U CN202331619U (en) | 2011-12-02 | 2011-12-02 | Random sampler for statistically sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204927441U CN202331619U (en) | 2011-12-02 | 2011-12-02 | Random sampler for statistically sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331619U true CN202331619U (en) | 2012-07-11 |
Family
ID=46443591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204927441U Expired - Fee Related CN202331619U (en) | 2011-12-02 | 2011-12-02 | Random sampler for statistically sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134199A (en) * | 2017-07-18 | 2017-09-05 | 刘德平 | A kind of maths game instructional device |
-
2011
- 2011-12-02 CN CN2011204927441U patent/CN202331619U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134199A (en) * | 2017-07-18 | 2017-09-05 | 刘德平 | A kind of maths game instructional device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dekas et al. | Identification of diazotrophic microorganisms in marine sediment via fluorescence in situ hybridization coupled to nanoscale secondary ion mass spectrometry (FISH-NanoSIMS) | |
| CN102095671A (en) | Analytical method of small-size impurities in steel | |
| CN102003947B (en) | Method for quantitatively representing shape of molybdenum powder | |
| CN108732000A (en) | A kind of heavy metal in sea water pretreatment unit | |
| CN202331619U (en) | Random sampler for statistically sampling | |
| CN203379907U (en) | Liquid moving device | |
| CN202886139U (en) | Vacuum sampler for liquid food | |
| CN103333719A (en) | Production equipment and production technology for biodiesel with low acid value | |
| CN204935451U (en) | A kind of variable-distance glass microscopic model clamping device | |
| CN204638219U (en) | A kind of filtration pipettor | |
| CN102928341A (en) | Method for detecting inclusions in spherical metal powder | |
| CN208902490U (en) | A kind of heavy metal in sea water pretreatment unit | |
| CN202087392U (en) | Automatic diamond micro-powder sorting machine | |
| CN204101348U (en) | Use for laboratory ore pulp reduction device | |
| CN206627520U (en) | A kind of multi-purpose Micro biological Tests slide | |
| CN105279589A (en) | Sampling survey method | |
| CN201289540Y (en) | Novel glass carrier | |
| CN205107950U (en) | Multi -purpose meiofauna dissects device | |
| CN202814995U (en) | Full-automatic tissue slice making and analyzing all-in-one machine | |
| CN202735132U (en) | Automatic sampling device of oil filter efficiency test stand | |
| CN204666383U (en) | A kind of particle stopple coupon | |
| CN203894090U (en) | Jade nondestructive testing sample model | |
| CN202533273U (en) | Adjustable powdery material sampler | |
| CN203629910U (en) | Full-automatic rock core high pressure saturation device | |
| CN209485767U (en) | A kind of oil-well measurement station mixed sampling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin University of Commerce attached refrigeration equipment factory Assignor: Harbin University of Commerce Contract record no.: 2012230001624 Denomination of utility model: Random sampler for statistically sampling Granted publication date: 20120711 License type: Exclusive License Record date: 20120822 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121202 |