CN218956230U

CN218956230U - Random sampling device

Info

Publication number: CN218956230U
Application number: CN202222733118.8U
Authority: CN
Inventors: 夏婷婷
Original assignee: Harbin Normal University
Current assignee: Harbin Normal University
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-05-02
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a random sampling device which comprises a random sampling box, wherein the upper end face of the random sampling box is fixedly connected with a speed reducing motor, and the output end of the speed reducing motor penetrates through the upper end face of the random sampling box and is fixedly connected with a first gear. According to the utility model, through the matching arrangement of the gear motor, the first gear and the second gear, the rotating rod can be driven to rotate, the rotating rod can drive the stirring blade to rotate, the stirring blade can stir and mix sample pellets in the random sampling box, and the position at the edge of the device can be stirred; through the cooperation setting of dwang, worm and worm wheel, can drive the horizontal pole and rotate, the horizontal pole sets up through the cooperation of adapter sleeve and connecting block, can drive to turn over the board and rotate, turns over the board and can stir the sample ball of device bottom and mix to make the sample ball misce bene in the random sampling box, and then improved the accuracy of taking a sample.

Description

Random sampling device

Technical Field

The utility model relates to the technical field of random sampling devices, in particular to a random sampling device.

Background

Statistics is to infer the nature of the measured object by searching, sorting, analyzing and describing data, even predict a comprehensive science of the object future, the statistics uses a great deal of expertise of mathematics and other subjects, the application range of the statistics almost covers various fields of social science and natural science, a part of individuals actually observed or investigated in the research are called samples, all the research objects are called population, sampling is often used in statistics, all observation units in the population must be homogeneous during sampling, the observation units of the samples must have enough quantity, and randomization principle must be complied with, and random sampling devices are usually used in the prior art.

When people carry out statistics work, sample pellets in sample placement are required to be stirred and mixed, then random sampling is carried out, but the whole sample pellets cannot be stirred evenly when the sample pellets are stirred by the conventional random sampling device, the sample pellets near the stirring blades can only be stirred, the sample pellets at the bottom and the edge cannot be stirred, the sampling result is inaccurate, the accuracy of the statistics data is influenced, and the accuracy of sampling is further reduced.

In view of the above, we propose a random sampling device.

Disclosure of Invention

The utility model aims to solve the defects that in the prior art, when people perform statistics work, sample pellets in sample placement are required to be stirred and mixed and then sampled randomly, but the whole sample pellets cannot be stirred uniformly when the sample pellets are stirred by the conventional random sampling device, only the sample pellets near stirring blades can be stirred, and the sample pellets at the bottom and the edge cannot be stirred, so that sampling results are inaccurate, the accuracy of statistics data is influenced, and the accuracy of sampling is further reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a random sampling device, includes random sampling box, random sampling box's up end fixedly connected with gear motor, gear motor's output runs through random sampling box's up end and fixedly connected with first gear, the both sides symmetrical meshing of first gear is connected with two second gears, every the equal vertical fixedly connected with dwang of center department of second gear, every equal spaced symmetrical fixedly connected with a plurality of stirring leaf on dwang's the lateral wall, every the equal fixedly connected with worm of lower extreme of dwang, every all meshing is connected with the worm wheel on the worm, every the equal horizontal fixedly alternates in center department of worm wheel has the horizontal pole, every all fixedly cup jointed the adapter sleeve on the horizontal pole, every equal symmetrical fixedly connected with two connecting blocks on the lateral wall of adapter sleeve, every the equal fixedly connected with turns over the board on the other end of connecting block.

Preferably, the inner wall of the random sampling box is fixedly connected with a supporting plate, two opposite ends of the cross rod are rotationally connected to the side wall of the supporting plate, and two opposite ends of the cross rod are rotationally connected to the inner wall of the random sampling box.

Preferably, a plurality of sampling tubes are fixedly connected to the side wall of the random sampling box, and one end of each sampling tube is communicated with the inside of the random sampling box.

Preferably, the upper ends of the two rotating rods are both rotationally connected to the inner wall of the random sampling box, and the lower end surface of the random sampling box is fixedly connected with a bottom plate.

Preferably, the diameter ratio between the first gear and the second gear is 2:1, and the upper end surface of the random sampling box is fixedly connected with a feeding pipe.

Preferably, the gear motor is fixedly sleeved with a dust cover, and the lower end face of the dust cover is fixedly connected to the upper end face of the random sampling box.

Compared with the prior art, the utility model has the beneficial effects that:

through the cooperation setting of gear motor, first gear and second gear, can drive the dwang and rotate, the dwang can drive the stirring leaf and rotate, and the stirring leaf can stir the sample ball in the random sampling case and mix, can stir the position of device edge in addition; through the cooperation setting of dwang, worm and worm wheel, can drive the horizontal pole and rotate, the horizontal pole sets up through the cooperation of adapter sleeve and connecting block, can drive to turn over the board and rotate, turns over the board and can stir the sample ball of device bottom and mix to make the sample ball misce bene of random sampling incasement, and then improved the accuracy of taking a sample, take a sample through setting up the sampling tube at different co-altitude moreover, can take a sample to the sample ball of different co-altitude levels, reach the effect of layering sample, improved random sampling device's practicality.

Drawings

FIG. 1 is a schematic diagram of a front structure of a random sampling device according to the present utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure of a random sampling device according to the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure: 1 random sampling box, 2 gear motor, 3 first gear, 4 second gear, 5 dwang, 6 stirring leaf, 7 worm, 8 worm wheel, 9 horizontal pole, 10 adapter sleeve, 11 connecting block, 12 turn over board, 13 sampling tube, 14 backup pad, 15 bottom plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, a random sampling device comprises a random sampling box 1, wherein the upper end surface of the random sampling box 1 is fixedly connected with a gear motor 2, the output end of the gear motor 2 penetrates through the upper end surface of the random sampling box 1 and is fixedly connected with a first gear 3, two second gears 4 are symmetrically connected with each of two sides of the first gear 3 in a meshed mode, a rotating rod 5 is vertically and fixedly inserted in the center of each of the second gears 4, a plurality of stirring blades 6 are symmetrically and fixedly connected with the side wall of each of the rotating rods 5 at equal intervals, the lower end of each of the rotating rods 5 is fixedly connected with a worm 7, each worm 7 is fixedly connected with a worm wheel 8 in a meshed mode, a cross rod 9 is horizontally and fixedly inserted in the center of each worm wheel 8, a connecting sleeve 10 is fixedly sleeved on each cross rod 9, two connecting blocks 11 are symmetrically and fixedly connected with each other side wall of each connecting sleeve 10, the other end of each connecting block 11 is fixedly connected with a 12, a turning plate 6 can be driven to rotate through the matching arrangement of the gear motor 2, the first gears 3 and the second gears 4, the rotating rods 5 can drive the rotating rods 6 to rotate, the stirring blades 6 can drive the stirring blades 6 to stir sample balls in the random sampling box 1, and the positions can be mixed in the stirring device; through dwang 5, worm 7 and worm wheel 8's cooperation setting, can drive horizontal pole 9 and rotate, horizontal pole 9 sets up through adapter sleeve 10 and connecting block 11's cooperation, can drive and turn over board 12 and rotate, turn over board 12 can stir the sample ball of device bottom and mix to make the sample ball misce bene in the random sampling box 1, and then improved the accuracy of taking a sample, take a sample through setting up at the sampling tube 13 of co-altitude not in addition, can take a sample to the sample ball of co-altitude level not, reach the effect of layering sample, improved random sampling device's practicality.

Wherein, fixedly connected with backup pad 14 on the inner wall of random sampling case 1, the equal swivelling joint of the relative one end of two horizontal poles 9 is on the lateral wall of backup pad 14, and the equal swivelling joint of the one end that two horizontal poles 9 are opposite is on the inner wall of random sampling case 1, and backup pad 14 can play the effect of supporting to horizontal pole 9.

Wherein, fixedly connected with a plurality of sampling tubes 13 on the lateral wall of random sampling box 1, the one end of every sampling tube 13 all communicates with random sampling box 1 is inside, can take a sample through sampling tube 13.

Wherein, the upper ends of two dwang 5 all rotate and connect on the inner wall of random sampling case 1, and the lower terminal surface fixedly connected with bottom plate 15 of random sampling case 1, dwang 5 can drive worm 7 rotation.

Wherein, the diameter ratio between the first gear 3 and the second gear 4 is 2:1, and the up end fixedly connected with inlet pipe of random sampling case 1, first gear 3 can drive second gear 4 rotation.

Wherein, gear motor 2 is last to fixedly cup joint the dust cover, and the lower terminal surface fixed connection of dust cover is on the up end of random sampling case 1, and the dust cover can play dirt-proof effect.

In the utility model, when the speed reducing motor 2 is started in operation, the output end of the speed reducing motor 2 can drive the first gear 3 to rotate, the first gear 3 can drive the second gear 4 to rotate rapidly, the second gear 4 can drive the rotating rod 5 to rotate, the rotating rod 5 can drive the stirring blade 6 to rotate, the stirring blade 6 can stir and mix sample pellets in the random sampling box 1, and can stir the position at the edge of the device, meanwhile, the rotating rod 5 can drive the worm 7 to rotate, the worm 7 can drive the worm wheel 8 to rotate, the worm wheel 8 can drive the cross rod 9 to rotate, the cross rod 9 can drive the connecting sleeve 10 to rotate, the connecting sleeve 10 can drive the turning plate 12 to rotate through the connecting block 11, and the turning plate 12 can stir and mix sample pellets at the bottom of the device, so that the sample pellets in the random sampling box 1 are uniformly mixed, the sampling accuracy is improved, the sample pellets with different heights can be sampled through the sampling tube 13, the effect of layered sampling is achieved, the practicability of the random sampling device is improved, and the practicality of the random sampling device is not described in detail in the prior art.

Although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a random sampling device, includes random sampling case (1), its characterized in that, the up end fixedly connected with gear motor (2) of random sampling case (1), the output of gear motor (2) runs through the up end of random sampling case (1) and fixedly connected with first gear (3), the both sides symmetrical meshing of first gear (3) is connected with two second gears (4), every equal vertical fixedly-threaded of center department of second gear (4) has dwang (5), every symmetrical fixedly-connected with a plurality of stirring leaf (6) of equal interval on the lateral wall of dwang (5), every equal fixedly-connected with worm (7) of lower extreme of dwang (5), every equal meshing is connected with worm wheel (8) on worm (7), every equal horizontal fixedly-threaded of center department of worm wheel (8) has horizontal pole (9), every equal fixedly-threaded joint on horizontal pole (9) has dwang (10), every equal fixedly-threaded connection on the lateral wall of adapter sleeve (10) has two adapter sleeves (11), every other end (12) are all fixedly-connected with connecting block (12).

2. A random sampling device according to claim 1, wherein the inner wall of the random sampling box (1) is fixedly connected with a supporting plate (14), opposite ends of the two cross bars (9) are rotatably connected to the side wall of the supporting plate (14), and opposite ends of the two cross bars (9) are rotatably connected to the inner wall of the random sampling box (1).

3. A random sampling device according to claim 1, characterized in that a plurality of sampling tubes (13) are fixedly connected to the side wall of the random sampling box (1), and one end of each sampling tube (13) is communicated with the inside of the random sampling box (1).

4. A random sampling device according to claim 1, characterized in that the upper ends of the two rotating rods (5) are both rotatably connected to the inner wall of the random sampling box (1), and the lower end surface of the random sampling box (1) is fixedly connected with a bottom plate (15).

5. A random sampling device according to claim 1, characterized in that the diameter ratio between the first gear (3) and the second gear (4) is 2:1, and the upper end surface of the random sampling box (1) is fixedly connected with a feeding pipe.

6. A random sampling device according to claim 1, characterized in that the gear motor (2) is fixedly sleeved with a dust cover, and the lower end surface of the dust cover is fixedly connected to the upper end surface of the random sampling box (1).