Passive in-situ water sample replacement device

Abstract

The present application relates to water sample replacement technical field, specifically disclose a kind of passive in-situ water sample replacement device, including mutually assembled culture cabin and control cabin, culture cabin and control cabin mutually cooperate to form culture cavity, culture cabin includes outer rotator and the inner rotator of tightly adhering to set in outer rotator, the circumferential side of outer rotator is uniformly provided with multiple outer openings, the circumferential side of inner rotator is uniformly provided with multiple inner openings, control cabin is used to control the relative rotation of inner rotator and outer rotator, so that outer opening and inner opening corresponding overlap or staggered distribution, to realize the opening or closing of culture cabin.The present application can improve the flux of water sample into culture cavity, improve the rate of passive water sample replacement, and can avoid the problem of gas remaining in culture cavity, while operation is more simple, also convenient cleaning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water sample replacement, in particular to a passive in-situ water sample replacement device. BACKGROUND

[0002] The current in-situ water sample replacement device mainly realizes water sample replacement through rotating a plane cover to open and close, or through a syringe or a water pump to extract. For example, a marine organism production dynamic parameter measurement module and measurement equipment disclosed in Chinese patent document CN111650349A sets a first window and a second window communicating with an internal containing space at the upper and lower ends of a first shell, and sets a first rotating cover and a second rotating cover on the first window and the second window respectively, and controls the opening and closing of the first window and the second window by rotating the first rotating cover and the second rotating cover. This technical solution has a small opening, resulting in a small flux of water sample in and out, a slow water sample replacement rate, and inconvenience in cleaning. Another example is a multifunctional in-situ water sample collection device disclosed in Chinese patent document CN110793812A, which uses a syringe with a required capacity to directly pierce the rubber plug and extract under the premise of not removing the rubber plug. This technical solution is complicated and inconvenient to operate, and cannot completely discharge the gas in the collection device, which may cause gas residue and affect the sampling result, and is not convenient for underwater multiple sampling. In addition, there is also a water sample replacement method through a water pump, which increases the power consumption of the in-situ water sample replacement device. SUMMARY

[0003] The present application aims to provide a passive in-situ water sample replacement device to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the technical solution of the present application is as follows: a passive in-situ water sample replacement device, comprising a culture cabin and a control cabin assembled with each other, the culture cabin and the control cabin cooperating with each other to form a culture cavity, the culture cabin comprising an outer rotating body and an inner rotating body tightly fitted and sleeved in the outer rotating body, the circumferential side of the outer rotating body being uniformly provided with a plurality of outer openings, the circumferential side of the inner rotating body being uniformly provided with a plurality of inner openings, and the control cabin being used to control the relative rotation of the inner rotating body and the outer rotating body, so that the outer openings and the inner openings are correspondingly overlapped or staggered, thereby realizing the opening or closing of the culture cabin.

[0005] In one embodiment, the control cabin is a hollow cylindrical shape, and a control circuit board and a motor are arranged in the control cabin and connected with each other, and a turntable driven connected with the motor is arranged on the side of the control cabin facing the culture cabin, the outer rotating body is fixedly installed on the control cabin, and the inner rotating body is fixedly installed on the turntable.

[0006] In one embodiment, the plurality of outer openings are of the same size and shape, and the plurality of inner openings are of the same size and shape.

[0007] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0008] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0009] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0010] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0011] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0012] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0013] In one embodiment, the inner rotating body and the outer rotating body are of the same structure, and the outer diameter of the inner rotating body is slightly smaller than the inner diameter of the outer rotating body, so as to tightly fit the inner rotating body in the outer rotating body.

[0014] The present application has the following advantages:

[0015] The present application comprises a culture chamber and a control chamber, which are assembled together to form a culture cavity. The culture chamber comprises an outer rotating body and an inner rotating body which is tightly fitted in the outer rotating body. The circumferential side of the outer rotating body is uniformly provided with a plurality of outer openings, and the circumferential side of the inner rotating body is uniformly provided with a plurality of inner openings. The control chamber is used to control the relative rotation of the inner rotating body and the outer rotating body, so that the outer openings and the inner openings are correspondingly overlapped or staggered, thereby realizing the opening or closing of the culture chamber, and achieving the replacement of water samples by utilizing the diffusion characteristics of fluid.

[0016] 1. The outer openings and the inner openings are both multiple and circumferential side openings, and the flux of water sample in and out is larger, greatly improving the rate of passive water sample replacement.

[0017] 2, operation is more simple, and also convenient cleaning;

[0018] 3, can the gas in the culture cavity is completely discharged, solved the gas remaining problem in the culture cavity, avoid affecting the sampling result;

[0019] 4, convenient underwater sampling multiple times;

[0020] 5, without the help of water pump and other mechanisms for water sample extraction replacement, in the case of long time to replace water sample, can greatly reduce the overall power consumption of water sample replacement device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the culture cavity in the closed state of an embodiment of the present application (one);

[0022] Figure 2 is a schematic view of the culture cavity in the closed state of an embodiment of the present application (two);

[0023] Figure 3 is a top view of an embodiment of the present application;

[0024] Figure 4 is an exploded view of an embodiment of the present application (one);

[0025] Figure 5 is an exploded view of an embodiment of the present application (two).

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1 culture cabin, 2 control cabin, 3 culture cavity, 4 bottom cover, 5 outer rotating body, 51 outer cylindrical rotating body, 52 outer hemispherical rotating body, 53 outer opening, 54 outer plugging part, 6 inner rotating body, 61 inner cylindrical rotating body, 62 inner hemispherical rotating body, 63 inner opening, 64 inner plugging part, 7 turntable, 8 first partition, 9 second partition. DETAILED DESCRIPTION

[0028] To further illustrate the embodiments, the present application provides drawings. These drawings are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be explained with the related description of the specification to understand the operating principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the figure are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] Reference Figures 1-5As shown in the figure, as an embodiment of the present invention, a passive in-situ water sample replacement device is provided, including a culture chamber 1 and a control chamber 2 assembled together. The culture chamber 1 and the control chamber 2 cooperate to form a culture cavity 3. The culture chamber 1 includes an outer rotating body 5 and an inner rotating body 6 tightly fitted inside the outer rotating body 5. The outer rotating body 5 has a plurality of external openings 53 evenly arranged on its circumferential side surface, and the inner rotating body 6 has a plurality of internal openings 63 evenly arranged on its circumferential side surface. The control chamber 2 is used to control the relative rotation of the inner rotating body 6 and the outer rotating body 5, so that the external openings 53 and the internal openings 63 overlap or are staggered, thereby realizing the opening or closing of the culture chamber 1.

[0030] The above technical solution controls the relative rotation of the inner rotating body 6 and the outer rotating body 5 by controlling the inner rotating body 6 in the control chamber 2, so that the outer opening 53 and the inner opening 63 overlap or stagger, thereby opening or closing the culture chamber 1 and utilizing the diffusion characteristics of fluids to replace water samples. This invention has the following advantages:

[0031] 1. Both the external opening 53 and the internal opening 63 are multiple and have circumferential side openings, which increases the throughput of water samples entering and leaving the culture chamber 3 and greatly improves the rate of passive water sample replacement.

[0032] 2. It is easier to operate and also easier to clean;

[0033] 3. It can completely expel the gas in culture chamber 3, solving the problem of residual gas in culture chamber 3 and avoiding affecting the sampling results;

[0034] 4. Facilitates multiple underwater sampling;

[0035] 5. It does not require the use of pumps or other mechanisms to extract and replace water samples, which can significantly reduce the overall power consumption of the water sample replacement device when the water sample replacement time is long.

[0036] In this embodiment, the control chamber 2 is a hollow cylinder containing interconnected control circuit boards and motors. A bottom cover 4 is detachably installed at the end of the control chamber 2 furthest from the culture chamber 1 for easy assembly. A turntable 7, connected to the motor drive, is located on the side of the control chamber 2 facing the culture chamber 1. An outer rotating body 5 is fixedly mounted on the control chamber 2, and an inner rotating body 6 is fixedly mounted on the turntable 7. The motor drives the turntable 7 to rotate, which in turn causes the inner rotating body 6 to rotate relative to the outer rotating body 5. This causes the outer opening 53 and the inner opening 63 to overlap or stagger, thereby opening or closing the culture chamber 1. The turntable 7 includes an integrally formed annular portion and a three-pronged fixing bar located within the annular portion. A motor is connected to the center of the three-pronged fixing bar. This arrangement ensures a more balanced and stable rotation of the turntable 7.

[0037] In the embodiment, the outer rotating body 5 comprises an outer cylindrical rotating body 51 and an outer hemispherical rotating body 52 which are assembled with each other, the outer cylindrical rotating body 51 is fixedly installed on the control cabin 2 at one end away from the outer hemispherical rotating body 52, the inner rotating body 6 comprises an inner cylindrical rotating body 61 and an inner hemispherical rotating body 62 which are assembled with each other, the inner cylindrical rotating body 61 is fixedly installed on the turntable 7 at one end away from the inner hemispherical rotating body 62, the structure can reduce the resistance and facilitate sailing, and the structure is also more beautiful.

[0038] In the embodiment, the plurality of outer openings 53 are of the same shape and size, the plurality of outer openings 53 can be uniformly arranged on the circumferential side surface of the outer rotating body 5, the plurality of inner openings 63 are of the same shape and size, the plurality of inner openings 63 can be uniformly arranged on the circumferential side surface of the inner rotating body 6, so that the outer openings 53 and the inner openings 63 can be one-to-one corresponding and synchronously overlapped or staggered.

[0039] In the embodiment, the inner rotating body 6 has the same structure as the outer rotating body 5, the outer diameter of the inner rotating body 6 is slightly smaller than the inner diameter of the outer rotating body 5, so that the inner rotating body 6 is tightly fitted in the outer rotating body 5, thereby ensuring the sealing performance of the culture cabin 1 in the closed state.

[0040] In the embodiment, the inner rotating body 6 forms an inner plugging part 64 between adjacent inner openings 63, the outer rotating body 5 forms an outer plugging part 54 between adjacent outer openings 53, the area of the outer opening 53 is slightly smaller than the area of the outer plugging part 54 (i.e. the area of the outer opening 53 is slightly smaller than half of the total area of the circumferential side surface of the outer rotating body 5), and the area of the inner plugging part 64 is slightly larger than the area of the outer opening 53, which ensures that when the culture cabin 1 is opened, i.e. when the inner openings 63 and the outer openings 53 are overlapped, the water flux is large, and when the culture cabin 1 is closed, i.e. when the inner openings 63 and the outer openings 53 are staggered, the inner plugging part 64 can reliably seal and block the outer opening 53.

[0041] In the embodiment, the inner rotating body 6 is provided with a partition plate inside, which is used to divide the culture cavity 3 into an upper culture cavity and a lower culture cavity, the upper culture cavity and the lower culture cavity can be used for black and white bottle experiments for oxygen dissolution, one of which is used as a white bottle and the other is used as a black bottle, the black bottle is a dark reaction, and the volume of the upper culture cavity and the lower culture cavity is equal, which can facilitate subsequent culture experiment calculation, specifically, the partition plate comprises a first partition plate 8 and a second partition plate 9, the first partition plate 8 is located at one end of the inner cylindrical rotating body 61 close to the inner hemispherical rotating body 62, and the second partition plate 9 is located at one end of the inner hemispherical rotating body 62 close to the inner cylindrical rotating body 61, so that the upper culture cavity and the lower culture cavity do not interfere with each other, ensuring the separation effect and avoiding affecting the experimental results.

[0042] Of course, in other embodiments, the partition between the inner cylindrical rotating body 61 and the inner hemispherical rotating body 62 can be omitted, so that the culture cavity 3 is a whole inner cavity.

[0043] In this embodiment, the control cabin 2 is also provided with an underwater glider at the end away from the culture cabin 1, which is used to deliver the in-situ water sample replacement device to the designated position, and indirectly control the relative rotation of the inner rotating body 6 and the outer rotating body 5. At the same time, it can also receive the data of the sensors in the culture cavity 3, and transmit the data back to the client through the satellite network.

[0044] Although the present application has been specifically shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A passive in-situ water sample replacement device, characterized in that: The system includes a culture chamber and a control chamber that are assembled together. The culture chamber and control chamber cooperate to form a culture cavity. The culture chamber includes an outer rotating body and an inner rotating body that is tightly fitted inside the outer rotating body. The outer rotating body has multiple external openings evenly distributed on its circumferential side, and the inner rotating body has multiple internal openings evenly distributed on its circumferential side. The control chamber is used to control the relative rotation of the inner rotating body and the outer rotating body, so that the external openings and internal openings overlap or are staggered, thereby realizing the opening or closing of the culture chamber. The control chamber is a hollow cylinder, and it contains interconnected control circuit boards and motors. A turntable connected to the motor drive is located on the side of the control chamber facing the culture chamber. The outer rotating body is fixedly mounted on the control chamber, and the inner rotating body is fixedly mounted on the turntable. An internal sealing part is formed between adjacent internal openings on the inner rotating body. An outer sealing portion is formed between adjacent outer openings on the body, the area of ​​the outer opening is smaller than the area of ​​the outer sealing portion, and the area of ​​the inner sealing portion is larger than the area of ​​the outer opening; the outer rotating body includes an outer cylindrical rotating body and an outer hemispherical rotating body assembled together, the end of the outer cylindrical rotating body away from the outer hemispherical rotating body is fixedly installed on the control cabin; the inner rotating body includes an inner cylindrical rotating body and an inner hemispherical rotating body assembled together, the end of the inner cylindrical rotating body away from the inner hemispherical rotating body is fixedly installed on the turntable; the inner rotating body is provided with a partition to divide the culture chamber into an upper culture chamber and a lower culture chamber, the upper culture chamber and the lower culture chamber have equal volumes; the partition includes a first partition and a second partition, the first partition is located at the end of the inner cylindrical rotating body near the inner hemispherical rotating body, and the second partition is located at the end of the inner hemispherical rotating body near the inner cylindrical rotating body.

2. The passive in-situ water sample replacement device according to claim 1, characterized in that: Multiple external openings are of the same shape and size, and multiple internal openings are of the same shape and size.

3. The passive in-situ water sample replacement device according to claim 1, characterized in that: The inner rotating body has the same structure as the outer rotating body, but the outer diameter of the inner rotating body is smaller than the inner diameter of the outer rotating body, so that the inner rotating body can be tightly fitted and sleeved inside the outer rotating body.

4. The passive in-situ water sample replacement device according to claim 1, characterized in that: A bottom cover can be detachably installed at the end of the control chamber away from the culture chamber.

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