CN211932088U - Shrimp fry counting assembly - Google Patents

Abstract

The utility model relates to a counting device, in particular to a shrimp seed counting device, which comprises a barrel, a stirring rod and a plastic disc, wherein one end of the stirring rod is connected with the plastic disc through a thread, and the diameter of the plastic disc is 4/5 of the diameter of the barrel; the counting operation can be carried out by only one person, so that the labor cost is reduced; the counting error is within 5 percent, the damage and stress of the shrimp larvae can be reduced to the maximum extent, and the method is suitable for popularization and application in field shipment.

Description

Shrimp fry counting assembly

Technical Field

The utility model relates to a counting assembly, especially a shrimp seed counting assembly.

Background

In the field of shrimp fry buying, selling, loading, unloading and transporting, the shrimp fries need to be packed and transported in boxes, the accuracy of the number of each box needs to be ensured, meanwhile, the transportation time needs to be shortened as much as possible, and the damage and stress of the shrimp fries are reduced as much as possible, so that the transportation survival rate is improved. The existing shrimp fry counting method comprises several common methods, one bag of shrimp fries is evenly divided into 10 parts, one part is taken, the original one tail is counted, and the total number of the shrimp fries is counted by using a positive character recording method; the method is suitable for being used under the condition that the number of the shrimp seedlings is small, the time consumption is long, one person is required to count the shrimp seedlings, the time consumption is about 30 minutes when 3-5 ten thousand of the shrimp seedlings are counted generally, the method is most intuitive, the time and the labor are consumed, and errors also exist in manual distribution. Secondly, by a weighing method, 1g or other seedlings with fixed weight are firstly dried, one tail is counted after weighing, and the number of the shrimp seedlings can be obtained by directly weighing after the tail number of the seedlings with fixed weight is fixed; the method is simple and practical, but has high requirement on the anti-leaving capacity of the shrimp larvae, the shrimp larvae are extremely sensitive to dissolved oxygen, the shrimp larvae can be unrecoverable due to leaving water for a short time, particularly, when the growth stage of the shrimp larvae is small, the leaving water is a strong stress, transportation is needed after counting, namely, the shrimp larvae are drained and then returned to a water body for transportation, the operation is also complicated, and the damage to the young shrimp larvae is extremely large. The third method is to take a picture of the computer record through running water, the device can reduce the damage and the stress of the shrimp larvae and also can reduce the labor, but the device is more complex and has higher cost, needs to be linked with the computer and is not suitable for being used in the transportation, loading and unloading, buying and selling sites. Therefore, a counting device with low damage, rapidness and accuracy is needed for field counting of the shrimp larvae.

Disclosure of Invention

Not enough to prior art, the utility model provides a simple structure, convenient operation, low damage and count quick accurate shrimp seed counting assembly.

The technical scheme of the utility model is that: the utility model provides a shrimp seed counting assembly, it includes bucket, stirring stick, plastics disc and beaker, there is a plastics disc stirring one end of stick through threaded connection, the diameter of plastics disc is 4/5 of bucket diameter.

Further, the barrel is a straight barrel, the upper diameter and the lower diameter of the barrel are consistent, and the volume of the barrel is 18-20L.

Further, the stirring rod is a PVC pipe, and the length of the stirring rod is 50-70 cm.

Furthermore, two circles of through holes are uniformly formed in the plastic disc around the center of the plastic disc, so that water can pass through the through holes at a constant speed, the aperture of each through hole is about 4-6cm, and the thickness of the plastic disc is 1-2 cm.

Furthermore, the inner wall of the barrel is provided with volume scale marks.

Further, a handle is arranged on the side wall of the beaker, and the volume of the beaker is 300ml or 500 ml.

The utility model has the advantages that: the utility model has simple structure and convenient operation, and can rapidly count the shrimp seeds on the shipping site, thereby ensuring the accuracy of each bag of shrimp seeds; the counting operation can be carried out by only one person, so that the labor cost is reduced; the counting error is within 5 percent, the damage and stress of the shrimp larvae can be reduced to the maximum extent, and the method is suitable for popularization and application in field shipment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a barrel; 2. a stirring rod; 3. a plastic disc; 4. and a through hole.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

example 1

As shown in fig. 1, a shrimp counting device comprises a barrel 1, a stirring rod 2, a plastic disc 3 and a beaker, wherein a circular groove is formed in the middle of the top surface of the plastic disc 3, an internal thread is formed in the inner wall of the circular groove, an external thread is formed at one end of the stirring rod 2, one end of the stirring rod 2 provided with the external thread is in threaded connection with the plastic disc 3, and the diameter of the plastic disc 3 is 4/5 of the diameter of the barrel 1. When the shrimp larvae stirring device is used, the plastic disc 3 extends into a barrel, the stirring rod 2 drives the plastic disc 3 to stir clockwise and vertically, water with a fixed volume is uniformly stirred, shrimp larvae are uniformly stirred by the method, the small-capacity cup or the small beaker takes out the shrimp larvae in the time when the water rotates at a constant speed, the number of the shrimp larvae in the small-capacity cup is counted, and the number of the shrimp larvae in one barrel or one bag is obtained through volume conversion. How to operate repeatedly 2-3 times, reduce the error to the utmost extent, whole operation takes 5 minutes, and the consuming time is short, and the error is little under the accurate prerequisite of operation, is fit for loading and unloading packing field count.

Further, the barrel 1 is a straight barrel, the upper diameter and the lower diameter are consistent, and the volume of the barrel 1 is 18-20L.

Further, the stirring rod 2 is a PVC pipe, and the length of the stirring rod 2 is 50-70 cm.

Furthermore, two circles of through holes 4 are formed in the plastic disc 3 around the center of the plastic disc 3, the aperture of each through hole 4 is about 4-6cm, and the thickness of the plastic disc 3 is 1-2 cm.

Furthermore, the inner wall of the barrel 1 is provided with volume scale marks.

Further, a handle is arranged on the side wall of the beaker, and the volume of the beaker is 300 ml.

Embodiment 2 uses the utility model discloses a shrimp seed counting assembly counts a bag of shrimp seed

Preparing tools, namely a stirring rod, a white barrel, a 300ml handheld plastic beaker, a basin, a half net (the size of the half net is matched with that of the basin and can be just lapped on the basin), a 1L measuring cylinder and a white spoon;

1. the volume of the white barrel is 20L, 13L of seawater is accurately measured by a large amount of 1L of barrels and poured into the barrel, the position of 15L of water is marked on the barrel, and 3L of water is taken out by the barrels for later use;

2. injecting water with the volume of about 4/5 into the basin, and then lapping the half net on the basin;

3. pouring a bag of seedlings to be counted (the volume of water in the bag is less than 3L) into a bucket, and adding the water in the bucket to just 15L;

4. the right hand-held stirring rod extends into the barrel to stir up and down clockwise, so that the water flow in the barrel flows uniformly in one direction;

5. a 300ml beaker is held by a left hand, a cup of seedlings is taken from the middle position in the bucket and poured into a half net;

6. counting the seedlings on the half net by using a white spoon, wherein the number of the counted seedlings is 43;

7. pouring all seedlings in the pot into a half net again, draining water, pouring the seedlings into a barrel, fully pouring a cup of water into a 300ml handheld plastic beaker, adding the water into a white barrel, and recovering the number of the seedlings and the volume of water in the white barrel;

8. repeating the steps for 5-8 and 2 times, wherein the number of the counted two times is 42 and 40 respectively;

10. calculate a bag of seedling quantity W (43+42+40)/3/300 15000 ═ 2083, all the seedlings that come out and make a cup in the white barrel are concentrated on half net, carry out a tail and a tail count, and the total number after the count is 2059 tails, with using the utility model discloses a shrimp seedling counting assembly counts the seedling number of obtaining and differs 24 tails, only differs 1.1 between the two. The accuracy is up to 98.9%.

Embodiment 3 use the utility model discloses a shrimp seed counting assembly counts a bag of shrimp seed

1. Preparing a stirring rod, a white barrel, a 300ml handheld plastic beaker, a basin, a half net (the half net can be just lapped on the basin), a 1L measuring cylinder and a white spoon;

2. the volume of the white barrel is 18L, the white barrel is filled with about 10L of water, a bag of seedlings to be counted is poured, and the water is added to the white barrel to be just 15L;

3. the right hand-held stirring rod extends into the barrel to stir up and down clockwise, so that the water flow in the barrel flows uniformly in one direction; a left hand holds a 300ml hand-held plastic beaker, takes exactly one cup of seedling water (filling the actual volume of 310ml) from the middle part of the bucket, and pours the water into a half net built in a basin;

4. counting the number of the seedlings in the half net to 40, pouring the 40 seedlings into a white barrel after counting, and adding water to restore the volume of 15L in the white barrel;

5. repeating the step (3-4), wherein the number of counts is 43;

6. calculating the number W of one bag of seedlings as (43+40)/2/310 as 15000 as 2008 (tail);

7. all the seedlings in the barrel and the seedlings which are out of the cup are concentrated on a half net for counting one tail by one tail, the total number after counting is 1988, the difference between the total number and the number of the seedlings counted by the shrimp seedling counting device is 20, and the difference between the two is only 1.01 percent. The accuracy is up to 98.99%.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims (6)

1. The utility model provides a shrimp fry counting assembly which characterized in that: the novel stirring barrel comprises a barrel (1), a stirring rod (2), a plastic disc (3) and a beaker, wherein one end of the stirring rod (2) is connected with the plastic disc (3) through a thread, and the diameter of the plastic disc (3) is 4/5 of the inner diameter of the barrel (1).

2. The shrimp counting device of claim 1, wherein: the barrel (1) is a straight barrel, and the volume of the barrel (1) is 18-20L.

3. The shrimp counting device of claim 2, wherein: the stirring rod (2) is a PVC pipe, and the length of the stirring rod (2) is 50-70 cm.

4. The shrimp counting device of claim 3, wherein: two circles of through holes (4) are uniformly formed in the plastic disc (3) around the center of the plastic disc (3), the aperture of each through hole (4) is about 4-6cm, and the thickness of the plastic disc (3) is 1-2 cm.

5. The shrimp counting device of claim 4, wherein: the inner wall of the barrel (1) is provided with volume scale marks.

6. The shrimp counting device of claim 5, wherein: the side wall of the beaker is provided with a handle, and the volume of the beaker is 300ml or 500 ml.

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