CN208589072U - A kind of statistics is dedicated to randomly select device - Google Patents
A kind of statistics is dedicated to randomly select device Download PDFInfo
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- CN208589072U CN208589072U CN201821200052.3U CN201821200052U CN208589072U CN 208589072 U CN208589072 U CN 208589072U CN 201821200052 U CN201821200052 U CN 201821200052U CN 208589072 U CN208589072 U CN 208589072U
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- fixedly connected
- cylinder
- rotating cylinder
- rotating
- pedestal
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Abstract
Device is randomly selected the utility model discloses a kind of statistics is dedicated, including pedestal, support column is successively arranged in its horizontal direction of the upper end edge of the pedestal, cylinder and air blower, one end of the pedestal is fixedly connected with pushing meanss, the lower end of the pedestal is fixedly connected with mobile device, the upper end of the support column is fixedly connected with rotating mechanism, the upper end of the cylinder, which is run through, is equipped with rotating cylinder, the rotating cylinder is connect with rotary drum, the upper end of the rotating cylinder is fixedly connected with rotating bar, the upper end of the rotating bar is fixedly connected with rotating mechanism, the inner top of the rotating cylinder, which is fixedly connected with, draws high device, the lower end for drawing high device is rotatably connected to sliding shoe, the inner top of the rotating cylinder is fixedly connected with fixed device.The structure design of the utility model is reasonable, has and is moved easily, increases randomness and can carry out to total big article the benefit of random experiment.
Description
Technical field
The utility model relates to statistical technique field more particularly to a kind of statistics is dedicated randomly selects device.
Background technique
Statistics be about understanding objective phenomenon total number feature and quantitative relation science, it be by collect, it is whole
Reason, analysis statistics recognize the methodology science of objective phenomenon quantitative law, since statistical quantitative study has visitor
It sees, accurate and verifiable feature, so statistical method just becomes the most important method of positive research, is widely used in certainly
So, the analysis and research of society, economic, scientific and technical every field, according to random principle, i.e. each object in guarantee totality
There is known, non-zero probability to be selected into the object as research, guarantees the representativeness of sample, method of random sampling is exactly to investigate
There is the possibility drawn on an equal basis in each part in object totality, is a kind of sampling carried out completely in accordance with equal-opportunity principle
Investigation is known as a kind of " equiprobability ", and there are four types of citation forms, i.e. simple random sampling, equidistant sampling, type for random sampling
Sampling and chester sampling.
In existing technology, when randomly selecting, operator's heavy workload, the randomness randomly selected cannot be accessed
Guarantee, grab sample biggish for total amount can not carry out in existing technology, while be randomly selected using existing apparatus
When device be inconvenient to move.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of statistics proposed is dedicated
Randomly select device.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of statistics is dedicated to randomly select device, including pedestal, in its horizontal direction of the upper end edge of the pedestal successively
Equipped with support column, cylinder and air blower, one end of the pedestal is fixedly connected with pushing meanss, and the lower end of the pedestal is fixed to be connected
It is connected to mobile device, the upper end of the support column is fixedly connected with rotating mechanism, and the upper end of the cylinder, which is run through, is equipped with rotating cylinder,
The rotating cylinder is connect with rotary drum, and the upper end of the rotating cylinder is fixedly connected with rotating bar, and the upper end of the rotating bar is solid
Surely it is connected with rotating mechanism, the inner top of the rotating cylinder, which is fixedly connected with, draws high device, the lower end rotation for drawing high device
It is connected with sliding shoe, the inner top of the circular groove is fixedly connected with fixed device, and the upper end of the cylinder is equipped with escape pipe, described
The side wall of cylinder offers import, and piston is equipped in the import, and the lower end of the cylinder is equipped with outlet conduit, the outlet
Pipeline is equipped with valve, and the output end of the air blower is fixedly connected with ventilation duct, and the ventilation duct runs through the side wall of cylinder,
The junction of the ventilation duct and cylinder is equipped with gauze.
Preferably, the pushing meanss include the circular shaft for being fixedly connected on pedestal one end, the circular shaft far from pedestal one
End is fixedly connected with push rod, and the push rod is fixedly connected with holding rod far from one end of circular shaft.
Preferably, the mobile device includes the supporting leg for being fixedly connected on pedestal lower end, is equipped with circle in the supporting leg
Chamber is fixedly connected with the first spring on the cylindrical cavity inner wall, and the lower end of first spring is fixedly connected with buffer stopper, described slow
The lower end for rushing block is fixedly connected with traveling wheel, axial is equidistantly equipped with multiple limiting slots, the pedestal along it on the traveling wheel
Lower end be fixedly connected with gag lever post, the side wall of the gag lever post offers limit hole corresponding with limit groove location, described
The first limit stick is arranged in limit hole.
Preferably, the rotating mechanism includes the driving motor for being fixedly connected on upper end of support column, the driving motor
Output shaft end is fixedly connected with driving wheel, and the upper end of the rotating bar is fixedly connected with driven wheel, the driving wheel with it is driven
Wheel is connected by belt slip.
Preferably, the device that draws high includes two second springs for being fixedly connected on rotating cylinder inner top, described in two
The lower end of second spring is fixedly connected to pull rod, several straight-tooth, the rotation are equipped on the side wall of two pull rods
The side wall of cylinder, which runs through, is equipped with rack, and the rack and rotating cylinder are rotatablely connected, the rack with it is straight on two pull rods
Tooth intermeshing, the one end of the rack being located at outside rotating cylinder are fixedly connected with knob, and the side wall of the knob, which runs through, to be set
There is the second limit stick, the side wall of the rotating cylinder is equipped with multiple card slots corresponding with the second limit stick position.
Preferably, the fixed device includes the fixed link for being fixedly connected on rotating cylinder inner top, the side of the fixed link
It is fixedly connected on wall there are two limited block, two pull rods run through limited block, and the side wall of the rotating cylinder offers and two
The corresponding fixing groove in limited block position, the lower end of the fixed link are fixedly connected with shaft, and the both ends of the shaft, which rotate, to be connected
It connects there are two Semicircular baffle, the Semicircular baffle is equipped with several ventholes, and the upper end of the Semicircular baffle opens up
There is sliding slot, the sliding shoe is slidably connected on the inner wall of sliding slot.
The utility model has the advantages that；
1, pass through setting holding rod, push rod, supporting leg, traveling wheel, circular shaft, it may be convenient to be moved；
2, by setting air blower, venthole, Semicircular baffle, escape pipe, can allow the randomness randomly selected significantly
Increase；
3, by setting driving motor, belt, first pulley, second pulley, rotating cylinder, manpower can be greatly reduced, it can be with
The article big to sum carries out grab sample.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of dedicated structural schematic diagram for randomly selecting device of statistics；
Fig. 2 is structure enlargement diagram at A in Fig. 1；
Fig. 3 is structure enlargement diagram at B in Fig. 1；
Fig. 4 be the utility model proposes a kind of dedicated side view for randomly selecting device of statistics.
In figure: 1 holding rod, 2 push rods, 3 circular shafts, 4 gag lever posts, 5 traveling wheels, 6 first limit sticks, 7 buffer stoppers, 8 first springs,
9 outlet conduits, 10 valves, 11 pedestals, 12 air blowers, 13 gauzes, 14 support columns, 15 cylinders, 16 escape pipes, 17 racks, 18
Pull rod, 19 second springs, 20 driven wheels, 21 belts, 22 driving wheels, 23 knobs, 24 pistons, 25 driving motors, 26 rotating cylinders, 27
Semicircular baffle, 28 sliding shoes, 29 shafts, 30 fixed links, 31 straight-tooth, 32 limited blocks, 33 supporting legs, 34 rotating bars, 35 second
Limit stick.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-4, a kind of statistics is dedicated randomly selects device, including pedestal 11, its level of the upper end edge of pedestal 11
Support column 14, cylinder 15 and air blower 12 are successively arranged on direction, one end of pedestal 11 is fixedly connected with pushing meanss, pushes dress
The circular shaft 3 including being fixedly connected on 11 one end of pedestal is set, circular shaft 3 is fixedly connected with push rod 2, push rod 2 far from one end of pedestal 11
One end far from circular shaft 3 is fixedly connected with holding rod 1, operator can be hand steered pushing meanss, it is mobile to push device, pedestal 11
Lower end be fixedly connected with mobile device, mobile device includes the supporting leg 33 for being fixedly connected on 11 lower end of pedestal, supporting leg 33
It is interior to be equipped with cylindrical cavity, it is fixedly connected with the first spring 8 on cylindrical cavity inner wall, the lower end of the first spring 8 is fixedly connected with buffer stopper 7, delays
The lower end for rushing block 7 is fixedly connected with traveling wheel 5, on traveling wheel 5 along its it is axial be equidistantly equipped with multiple limiting slots, under pedestal 11
End is fixedly connected with gag lever post 4, and the side wall of gag lever post 4 offers limit hole corresponding with limit groove location, limit hole inner sleeve
Equipped with the first limit stick 6, when needing to operate, operator can be limited by traveling wheel 5 of the gag lever post 4 to device
Position, the upper end of support column 14 are fixedly connected with rotating mechanism, and the upper end of cylinder 15, which is run through, is equipped with rotating cylinder 26, rotating cylinder 26 and circle
Cylinder 15 is rotatablely connected, and the upper end of rotating cylinder 26 is fixedly connected with rotating bar 34, and the upper end of rotating bar 34 is fixedly connected with whirler
Structure, rotating mechanism include the driving motor 25 for being fixedly connected on 14 upper end of support column, and the output shaft end of driving motor 25 is fixed
It is connected with driving wheel 22, the upper end of rotating bar 34 is fixedly connected with driven wheel 20, and driving wheel 22 and driven wheel 20 pass through belt 21
It is slidably connected, operator can allow rotating cylinder 26 to be turned over, the article of random sampling is driven to carry out by starting rotating mechanism
Mixing, the inner top of rotating cylinder 26, which is fixedly connected with, draws high device, and the lower end for drawing high device is rotatably connected to sliding shoe 28, draws high
Device includes two second springs 19 for being fixedly connected on 26 inner top of rotating cylinder, and the lower end of two second springs 19 is fixed to be connected
It is connected to pull rod 18, several straight-tooth 31 are equipped on the side wall of two pull rods 18, the side wall of rotating cylinder 26, which runs through, is equipped with rack
17, rack 17 and rotating cylinder 26 are rotatablely connected, and the straight-tooth 31 on rack 17 and two pull rods 18 is intermeshed, rack 17
The one end being located at outside rotating cylinder 26 be fixedly connected with knob 23, the side wall of knob 23, which runs through, is equipped with the second limit stick 35, rotation
The side wall of cylinder 26 is equipped with multiple card slots corresponding with 35 position of the second limit stick, and operator can pass through control handle
23, and then the closure of two Semicircular baffles 27 is controlled, to achieve the purpose that cylinder 15 to be divided into two device rooms, rotating cylinder
26 inner top is fixedly connected with fixed device, and fixed device includes the fixed link 30 for being fixedly connected on 26 inner top of rotating cylinder,
It is fixedly connected on the side wall of fixed link 30 there are two limited block 32, two pull rods 18 run through limited block 32, the side wall of rotating cylinder 26
Fixing groove corresponding with two 32 positions of limited block is offered, the lower end of fixed link 30 is fixedly connected with shaft 29, shaft 29
Both ends rotation connection there are two Semicircular baffle 27, Semicircular baffle 27 is equipped with several ventholes, Semicircular baffle 27
Upper end offer sliding slot, sliding shoe 28 is slidably connected on the inner wall of sliding slot, and the upper end of cylinder 15 is equipped with escape pipe 16, cylinder
15 side wall offers import, and piston 24 is equipped in import, and the lower end of cylinder 15 is equipped with outlet conduit 9, sets on outlet conduit 9
There is valve 10, the output end of air blower 12 is fixedly connected with ventilation duct, and ventilation duct runs through the side wall of cylinder 15, ventilation duct and circle
The junction of cylinder 15 is equipped with gauze 13, and operator can allow air-flow by cylinder 15, pass through semicircle by opening air blower 12
The venthole of shape baffle 27, and then the article of grab sample is blown, then under the action of rotation, change air flow direction, make it
Increase randomness.
In the utility model, personnel are operated first after determining operating position, the limit hole and row being aligned on gag lever post 4
The limiting slot on wheel 5 is walked, the first limit stick 6 is inserted into and is limited, then turn knob 23 clockwise, knob 23 is with moving gear
Bar 17 rotates, and rack 17 is intermeshed due to being equipped with the pull rod 18 of straight-tooth 31 with two, so driving two pull rods 18 up
Movement, two pull rods 18 drive two Semicircular baffles 27 to move upwards by sliding shoe, until it is horizontal with cylinder 15, then
It is inserted into the second limit stick 35 to be limited, then opens piston 24, open escape pipe 16, the random pumping of needs is poured into cylinder 15
The article of sample several, closure piston 24, close valve 10, open air blower 12, start driving motor 25,25 band of driving motor
Dynamic driving wheel 22 rotates, and the rotation of driving wheel 22 drives belt 21 to move, and the movement of belt 21 drives driven wheel 20 to rotate, driven wheel 20
Rotation drives rotating bar 34 to rotate, and the rotation of rotating bar 34 drives rotating cylinder 26 to rotate, and then all components are together in entire rotating cylinder
Air-flow is blown into cylinder 15 by rotation, air blower 12, then by the venthole on two Semicircular baffles 27, due to two and half
Circular baffle plate 27 is rotating, so the air-flow by venthole changes correspondingly track, blows the object of institute's some need random sampling
Product, the air-flow of disorder greatly ensure that randomness, then over time, close air blower 12 and driving motor 25, beat
Then valve opening door 10 rotates counterclockwise knob 23, two Semicircular baffles 27 are put down, and the article after mixing random in this way is just
It can fall, first article for entering outlet conduit 9 has randomness, and the gauze 13 of 12 output end of air blower is object in order to prevent
Product enter in air blower 12.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of statistics is dedicated to randomly select device, including pedestal (11), which is characterized in that the upper end edge of the pedestal (11)
Support column (14), cylinder (15) and air blower (12) are successively arranged in its horizontal direction, one end of the pedestal (11) is fixed to be connected
Pushing meanss are connected to, the lower end of the pedestal (11) is fixedly connected with mobile device, and the upper end of the support column (14) is fixed to be connected
It is connected to rotating mechanism, the upper end of the cylinder (15), which is run through, is equipped with rotating cylinder (26), and the rotating cylinder (26) and cylinder (15) turn
Dynamic connection, the upper end of the rotating cylinder (26) are fixedly connected with rotating bar (34), and the upper end of the rotating bar (34) is fixedly connected
There is rotating mechanism, the inner top of the rotating cylinder (26), which is fixedly connected with, draws high device, and the lower end rotation for drawing high device connects
It is connected to sliding shoe (28), the inner top of the rotating cylinder (26) is fixedly connected with fixed device, and the upper end of the cylinder (15) is set
Have escape pipe (16), the side wall of the cylinder (15) offers import, and piston (24), the cylinder are equipped in the import
(15) lower end is equipped with outlet conduit (9), and the outlet conduit (9) is equipped with valve (10), the output of the air blower (12)
End is fixedly connected with ventilation duct, and the ventilation duct runs through the side wall of cylinder (15), the connection of the ventilation duct and cylinder (15)
Place is equipped with gauze (13).
2. a kind of statistics according to claim 1 is dedicated to randomly select device, which is characterized in that the pushing meanss packet
The circular shaft (3) for being fixedly connected on pedestal (11) one end is included, the circular shaft (3) is fixedly connected with push rod far from the one end of pedestal (11)
(2), the push rod (2) is fixedly connected with holding rod (1) far from the one end of circular shaft (3).
3. a kind of statistics according to claim 1 is dedicated to randomly select device, which is characterized in that the mobile device packet
It includes the supporting leg (33) for being fixedly connected on pedestal (11) lower end, is equipped with cylindrical cavity in the supporting leg (33), on the cylindrical cavity inner wall
It is fixedly connected with the first spring (8), the lower end of first spring (8) is fixedly connected with buffer stopper (7), the buffer stopper (7)
Lower end be fixedly connected with traveling wheel (5), axial be equidistantly equipped with multiple limiting slots, the bottom along it on the traveling wheel (5)
The lower end of seat (11) is fixedly connected with gag lever post (4), and the side wall of the gag lever post (4) offers corresponding with limit groove location
Limit hole is arranged with the first limit stick (6) in the limit hole.
4. a kind of statistics according to claim 1 is dedicated to randomly select device, which is characterized in that the rotating mechanism packet
The driving motor (25) for being fixedly connected on support column (14) upper end is included, the output shaft end of the driving motor (25) is fixedly connected
Have driving wheel (22), the upper end of the rotating bar (34) is fixedly connected with driven wheel (20), the driving wheel (22) and driven wheel
(20) it is slidably connected by belt (21).
5. a kind of statistics according to claim 1 is dedicated to randomly select device, which is characterized in that described to draw high device packet
Two second springs (19) for being fixedly connected on rotating cylinder (26) inner top are included, the lower end of two second springs (19) is solid
Surely it is connected with pull rod (18), several straight-tooth (31), the rotating cylinder (26) is equipped on the side wall of two pull rods (18)
Side wall run through and be equipped with rack (17), the rack (17) and rotating cylinder (26) are rotatablely connected, the rack (17) with
Straight-tooth (31) intermeshing on two pull rods (18), the rack (17) are located at the fixed company in the one end of rotating cylinder (26) outside
It is connected to knob (23), the side wall of the knob (23), which runs through, is equipped with the second limit stick (35), on the side wall of the rotating cylinder (26)
Equipped with multiple card slots corresponding with the second limit stick (35) position.
6. a kind of statistics according to claim 5 is dedicated to randomly select device, which is characterized in that the fixed device packet
Include the fixed link (30) for being fixedly connected on rotating cylinder (26) inner top, be fixedly connected on the side wall of the fixed link (30) there are two
Limited block (32), two pull rods (18) run through limited block (32), and the side wall of the rotating cylinder (26) is offered to be limited with two
The corresponding fixing groove in position block (32) position, the lower end of the fixed link (30) is fixedly connected with shaft (29), the shaft
(29) there are two Semicircular baffle (27), the Semicircular baffle (27) is equipped with several ventholes for both ends rotation connection,
The upper end of the Semicircular baffle (27) offers sliding slot, and the sliding shoe (28) is slidably connected on the inner wall of sliding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200052.3U CN208589072U (en) | 2018-07-20 | 2018-07-20 | A kind of statistics is dedicated to randomly select device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200052.3U CN208589072U (en) | 2018-07-20 | 2018-07-20 | A kind of statistics is dedicated to randomly select device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208589072U true CN208589072U (en) | 2019-03-08 |
Family
ID=65541498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821200052.3U Expired - Fee Related CN208589072U (en) | 2018-07-20 | 2018-07-20 | A kind of statistics is dedicated to randomly select device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208589072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110969754A (en) * | 2019-11-26 | 2020-04-07 | 广州腾顺信息科技有限公司 | Extraction device for generating random result, drawing machine and drawing method |
-
2018
- 2018-07-20 CN CN201821200052.3U patent/CN208589072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110969754A (en) * | 2019-11-26 | 2020-04-07 | 广州腾顺信息科技有限公司 | Extraction device for generating random result, drawing machine and drawing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 Termination date: 20190720 |